{"id":78593,"date":"2024-09-05T10:29:31","date_gmt":"2024-09-05T10:29:31","guid":{"rendered":"https:\/\/beststringer.com\/international-tennis-federation-itf-regulations\/"},"modified":"2026-05-22T04:55:23","modified_gmt":"2026-05-22T04:55:23","slug":"international-tennis-federation-itf-regulations","status":"publish","type":"post","link":"https:\/\/beststringer.com\/vi\/international-tennis-federation-itf-regulations\/","title":{"rendered":"Quy \u0111\u1ecbnh c\u1ee7a Li\u00ean \u0111o\u00e0n Qu\u1ea7n v\u1ee3t Qu\u1ed1c t\u1ebf (ITF)"},"content":{"rendered":"
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\"H\u01b0\u1edbng<\/figure>\n<\/div>\n<\/div><\/div>\n<\/div><\/div><\/div>\n\n
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1.1 N\u1ec1n t\u1ea3ng Quy \u0111\u1ecbnh ITF<\/strong><\/h5>\n\n\n\n

Nh\u1eefng Nguy\u00ean t\u1eafc C\u01a1 b\u1ea3n<\/mark> c\u1ee7a Quy \u0111\u1ecbnh V\u1ee3t ITF<\/mark> l\u00e0 g\u00ec?<\/strong><\/h2>\n\n\n\n

C\u00e1c quy \u0111\u1ecbnh v\u1ec1 v\u1ee3t tennis c\u1ee7a ITF t\u1ea1o ra khu\u00f4n kh\u1ed5 h\u1ee3p l\u1ec7 m\u00e0 ng\u01b0\u1eddi ch\u01a1i tennis, th\u1ee3 \u0111an v\u1ee3t v\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t ph\u1ea3i tu\u00e2n th\u1ee7. Trong h\u01b0\u1edbng d\u1eabn n\u00e0y, b\u1ea1n s\u1ebd t\u00ecm hi\u1ec3u c\u00e1c quy t\u1eafc ch\u00ednh x\u00e1c chi ph\u1ed1i k\u00edch th\u01b0\u1edbc v\u1ee3t, khu v\u1ef1c \u0111\u00e1nh b\u00f3ng v\u00e0 ki\u1ec3u \u0111an d\u00e2y, \u0111\u1ea3m b\u1ea3o thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n \u0111\u1ea1t ti\u00eau chu\u1ea9n chuy\u00ean nghi\u1ec7p.

T\u00f3m l\u1ea1i, k\u00edch th\u01b0\u1edbc t\u1ed5ng th\u1ec3 quy\u1ebft \u0111\u1ecbnh t\u00ednh h\u1ee3p l\u1ec7 c\u1ee7a c\u00e2y v\u1ee3t, trong khi c\u00e1c quy t\u1eafc v\u1ec1 ki\u1ec3u \u0111an d\u00e2y chi ph\u1ed1i b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac b\u00f3ng. Vi\u1ec7c n\u1eafm v\u1eefng c\u00e1c kh\u00e1i ni\u1ec7m n\u00e0y l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi b\u1ea5t k\u1ef3 ng\u01b0\u1eddi ch\u01a1i tennis hay th\u1ee3 \u0111an v\u1ee3t n\u00e0o mu\u1ed1n chu\u1ea9n b\u1ecb cho gi\u1ea3i \u0111\u1ea5u, v\u00ec m\u1ed9t s\u1ef1 thay \u0111\u1ed5i kh\u00f4ng h\u1ee3p l\u1ec7 c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn vi\u1ec7c b\u1ecb tru\u1ea5t quy\u1ec1n thi \u0111\u1ea5u.

D\u01b0\u1edbi \u0111\u00e2y l\u00e0 quy tr\u00ecnh ki\u1ec3m tra t\u00ednh h\u1ee3p l\u1ec7 \u0111\u01a1n gi\u1ea3n:
B\u01b0\u1edbc 1: T\u00ecm hi\u1ec3u chi\u1ec1u d\u00e0i v\u00e0 chi\u1ec1u r\u1ed9ng t\u1ed1i \u0111a cho ph\u00e9p.
B\u01b0\u1edbc 2: Hi\u1ec3u r\u1eb1ng c\u00e1c ki\u1ec3u \u0111an d\u00e2y nh\u00ecn chung ph\u1ea3i \u0111\u1ed3ng \u0111\u1ec1u.
B\u01b0\u1edbc 3: Tham kh\u1ea3o \u00fd ki\u1ebfn c\u1ee7a Th\u1ee3 \u0111an v\u1ee3t \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn qu\u1ed1c t\u1ebf \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u1ecdi tinh ch\u1ec9nh, ch\u1eb3ng h\u1ea1n nh\u01b0 d\u00e1n b\u0103ng ch\u00ec (lead tape) ho\u1eb7c thi\u1ebft b\u1ecb gi\u1ea3m ch\u1ea5n, \u0111\u1ec1u \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed h\u1ee3p l\u1ec7.<\/p>\n\n<\/div><\/div><\/div>\n<\/div>\n\n

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\"Th\u1ee3<\/figure>\n<\/div>\n<\/div><\/div>\n<\/div><\/div><\/div>\n\n
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1.2 K\u00edch th\u01b0\u1edbc V\u1ee3t<\/strong><\/h5>\n\n\n\n

Gi\u1ea3i th\u00edch Th\u00f4ng s\u1ed1 V\u1ee3t: K\u00edch th\u01b0\u1edbc<\/mark> v\u00e0 Khu v\u1ef1c \u0110\u00e1nh b\u00f3ng<\/mark><\/strong><\/h2>\n\n\n\n

Nguy\u00ean t\u1eafc v\u00e0ng trong chu\u1ea9n b\u1ecb gi\u1ea3i \u0111\u1ea5u l\u00e0 \u0111\u1ea3m b\u1ea3o khung v\u1ee3t tu\u00e2n th\u1ee7 c\u00e1c gi\u1edbi h\u1ea1n k\u00edch th\u01b0\u1edbc c\u1ee7a ITF. Chi\u1ec1u d\u00e0i t\u1ed5ng th\u1ec3 t\u1ed1i \u0111a c\u1ee7a m\u1ed9t c\u00e2y v\u1ee3t tennis h\u1ee3p l\u1ec7 l\u00e0 29.0 inch (73.7 cm). M\u1eb7c d\u00f9 h\u1ea7u h\u1ebft c\u00e1c c\u00e2y v\u1ee3t ti\u00eau chu\u1ea9n cho ng\u01b0\u1eddi l\u1edbn d\u00e0i 27 inch, nh\u01b0ng c\u00e1c khung v\u1ee3t k\u00e9o d\u00e0i c\u0169ng kh\u00e1 ph\u1ed5 bi\u1ebfn, tuy nhi\u00ean ch\u00fang ph\u1ea3i tuy\u1ec7t \u0111\u1ed1i n\u1eb1m d\u01b0\u1edbi gi\u1edbi h\u1ea1n 29 inch.

Chi\u1ec1u r\u1ed9ng t\u1ed5ng th\u1ec3 c\u0169ng \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh nghi\u00eam ng\u1eb7t, v\u1edbi m\u1ee9c t\u1ed1i \u0111a l\u00e0 12.5 inch (31.7 cm). B\u1ea3n th\u00e2n b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac b\u00f3ng c\u0169ng c\u00f3 gi\u1edbi h\u1ea1n c\u1ee5 th\u1ec3: m\u1eb7t l\u01b0\u1edbi d\u00e2y kh\u00f4ng \u0111\u01b0\u1ee3c v\u01b0\u1ee3t qu\u00e1 15.5 inch (39.4 cm) chi\u1ec1u d\u00e0i t\u1ed5ng th\u1ec3 v\u00e0 11.5 inch (29.2 cm) chi\u1ec1u r\u1ed9ng t\u1ed5ng th\u1ec3.

Ng\u01b0\u1eddi ch\u01a1i tennis c\u1ea7n s\u1ef1 t\u1ef1 tin r\u1eb1ng thi\u1ebft b\u1ecb c\u1ee7a h\u1ecd h\u1ee3p l\u1ec7 cho c\u00e1c gi\u1ea3i \u0111\u1ea5u ch\u00ednh th\u1ee9c. \u0110\u1ed1i v\u1edbi th\u1ee3 \u0111an v\u1ee3t, vi\u1ec7c \u0111o \u0111\u1ea1c v\u1ee3t sau khi thay d\u1ea3i b\u1ea3o v\u1ec7 \u0111\u1ea7u v\u1ee3t (bumper guard) ho\u1eb7c s\u1eeda \u0111\u1ed5i c\u00e1n v\u1ee3t l\u00e0 c\u1ef1c k\u1ef3 c\u1ea7n thi\u1ebft, v\u00ec ngay c\u1ea3 m\u1ed9t s\u1ef1 k\u00e9o d\u00e0i th\u00eam ch\u00fat \u00edt v\u01b0\u1ee3t qu\u00e1 29 inch c\u0169ng khi\u1ebfn khung v\u1ee3t tr\u1edf n\u00ean kh\u00f4ng h\u1ee3p l\u1ec7 trong thi \u0111\u1ea5u.<\/p>\n\n<\/div><\/div><\/div>\n<\/div>\n\n

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\"Th\u1ee3<\/figure>\n<\/div>\n<\/div><\/div>\n<\/div><\/div><\/div>\n\n
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1.3 Quy t\u1eafc Ki\u1ec3u \u0111an d\u00e2y<\/strong><\/h5>\n\n\n\n

T\u00ecm hi\u1ec3u v\u1ec1 Ki\u1ec3u \u0110an d\u00e2y<\/mark> v\u00e0 \u0110\u1ed9 \u0110\u1ed3ng \u0111\u1ec1u<\/mark><\/strong><\/h2>\n\n\n\n

M\u1eb7c d\u00f9 ng\u01b0\u1eddi ch\u01a1i th\u01b0\u1eddng y\u00eau c\u1ea7u \u0111an c\u01b0\u1edbc v\u1ee3t theo thi\u1ebft l\u1eadp t\u00f9y ch\u1ec9nh, c\u00e1c quy \u0111\u1ecbnh c\u1ee7a ITF x\u00e1c \u0111\u1ecbnh r\u1ea5t ch\u1eb7t ch\u1ebd c\u00e1ch m\u1ed9t c\u00e2y v\u1ee3t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111an. B\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac b\u00f3ng ph\u1ea3i ph\u1eb3ng v\u00e0 bao g\u1ed3m m\u1ed9t ki\u1ec3u d\u00e2y \u0111an ch\u00e9o nhau \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi khung. Quan tr\u1ecdng nh\u1ea5t, ki\u1ec3u \u0111an d\u00e2y nh\u00ecn chung ph\u1ea3i \u0111\u1ed3ng \u0111\u1ec1u.

\u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 th\u1ee3 \u0111an v\u1ee3t kh\u00f4ng th\u1ec3 t\u00f9y ti\u1ec7n t\u1ea1o ra kho\u1ea3ng c\u00e1ch d\u00e2y th\u1ea5t th\u01b0\u1eddng. C\u1ee5 th\u1ec3, ph\u1ea7n trung t\u00e2m c\u1ee7a ki\u1ec3u \u0111an d\u00e2y kh\u00f4ng \u0111\u01b0\u1ee3c th\u01b0a h\u01a1n c\u00e1c khu v\u1ef1c b\u00ean ngo\u00e0i. Quy t\u1eafc n\u00e0y ng\u0103n ch\u1eb7n c\u00e1c ki\u1ec3u \u0111an d\u00e2y t\u00f9y ch\u1ec9nh c\u1ef1c \u0111oan \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 t\u1ea1o ra hi\u1ec7u \u1ee9ng xo\u00e1y (spin) kh\u00f4ng t\u1ef1 nhi\u00ean b\u1eb1ng c\u00e1ch t\u1ea1o ra nh\u1eefng kho\u1ea3ng tr\u1ed1ng kh\u1ed5ng l\u1ed3 \u1edf \u0111i\u1ec3m ng\u1ecdt (sweet spot).

M\u1ed9t th\u1ee3 \u0111an v\u1ee3t chuy\u00ean nghi\u1ec7p c\u1ea7n bi\u1ebft ranh gi\u1edbi gi\u1eefa l\u1ef1a ch\u1ecdn thi\u1ebft l\u1eadp h\u1ee3p l\u1ec7 v\u00e0 nh\u1eefng tinh ch\u1ec9nh b\u1ea5t h\u1ee3p ph\u00e1p. Cho d\u00f9 ng\u01b0\u1eddi ch\u01a1i th\u00edch ki\u1ec3u \u0111an d\u00e2y d\u00e0y 18×20 hay ki\u1ec3u m\u1edf 16×19, th\u1ee3 \u0111an v\u1ee3t ph\u1ea3i \u0111\u1ea3m b\u1ea3o vi\u1ec7c l\u1eafp \u0111\u1eb7t cu\u1ed1i c\u00f9ng duy tr\u00ec \u0111\u01b0\u1ee3c m\u1eadt \u0111\u1ed9 \u0111\u1ed3ng \u0111\u1ec1u theo y\u00eau c\u1ea7u tr\u00ean to\u00e0n b\u1ed9 khu v\u1ef1c \u0111\u00e1nh b\u00f3ng.<\/p>\n\n<\/div><\/div><\/div>\n<\/div>\n\n

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\"Th\u1ee3<\/figure>\n<\/div>\n<\/div><\/div>\n<\/div><\/div><\/div>\n\n
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1.4 C\u00e1c Tinh ch\u1ec9nh H\u1ee3p l\u1ec7<\/strong><\/h5>\n\n\n\n

C\u00e1c Tinh ch\u1ec9nh<\/mark> v\u00e0 Ph\u1ee5 ki\u1ec7n<\/mark> H\u1ee3p l\u1ec7<\/strong><\/h2>\n\n\n\n

Kh\u00f4ng th\u1ec3 s\u1eeda \u0111\u1ed5i m\u1ed9t c\u00e2y v\u1ee3t tennis m\u1ed9t c\u00e1ch t\u00f9y ti\u1ec7n. C\u00e1c ph\u1ee5 ki\u1ec7n g\u1eafn th\u00eam ch\u1ec9 \u0111\u01b0\u1ee3c gi\u1edbi h\u1ea1n \u1edf c\u00e1c ch\u1ee9c n\u0103ng c\u1ee5 th\u1ec3, ch\u1eb3ng h\u1ea1n nh\u01b0 ng\u0103n ng\u1eeba m\u00e0i m\u00f2n, gi\u1ea3m ch\u1ea5n, ho\u1eb7c ph\u00e2n b\u1ed5 tr\u1ecdng l\u01b0\u1ee3ng. Vi\u1ec7c hi\u1ec3u r\u00f5 nh\u1eefng ranh gi\u1edbi n\u00e0y l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u1edf m\u1ecdi c\u1ea5p \u0111\u1ed9:<\/p>\n\n\n\n

Thi\u1ebft b\u1ecb Gi\u1ea3m ch\u1ea5n (Vibration Dampeners).<\/strong> C\u00e1c thi\u1ebft b\u1ecb gi\u1ea3m ch\u1ea5n l\u00e0 h\u1ee3p l\u1ec7, nh\u01b0ng v\u1ecb tr\u00ed c\u1ee7a ch\u00fang \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh ch\u1eb7t ch\u1ebd. Ch\u00fang ph\u1ea3i \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t ho\u00e0n to\u00e0n b\u00ean ngo\u00e0i ki\u1ec3u \u0111an ch\u00e9o c\u1ee7a d\u00e2y. Vi\u1ec7c \u0111\u1eb7t m\u1ed9t thi\u1ebft b\u1ecb gi\u1ea3m ch\u1ea5n v\u00e0o b\u00ean trong khu v\u1ef1c d\u00e2y \u0111an ch\u00e9o l\u00e0 m\u1ed9t vi ph\u1ea1m ph\u1ed5 bi\u1ebfn.<\/p>\n\n\n\n

Ph\u00e2n b\u1ed5 Tr\u1ecdng l\u01b0\u1ee3ng.<\/strong> Ng\u01b0\u1eddi ch\u01a1i th\u01b0\u1eddng xuy\u00ean d\u00e1n th\u00eam b\u0103ng ch\u00ec ho\u1eb7c vonfram \u0111\u1ec3 t\u00f9y ch\u1ec9nh vung n\u1eb7ng (swing weight). \u0110i\u1ec1u n\u00e0y ho\u00e0n to\u00e0n h\u1ee3p l\u1ec7, mi\u1ec5n l\u00e0 l\u1edbp b\u0103ng kh\u00f4ng l\u00e0m thay \u0111\u1ed5i h\u00ecnh d\u00e1ng \u0111\u1ed9ng h\u1ecdc c\u1ee7a c\u00e2y v\u1ee3t trong qu\u00e1 tr\u00ecnh thi \u0111\u1ea5u.<\/p>\n\n\n\n

Ng\u0103n ng\u1eeba M\u00e0i m\u00f2n.<\/strong> C\u00e1c mi\u1ebfng b\u1ea3o v\u1ec7 d\u00e2y (string savers – nh\u1eefng mi\u1ebfng l\u00f3t nh\u1ecf gi\u1eefa c\u00e1c d\u00e2y \u0111an ch\u00e9o) \u0111\u01b0\u1ee3c ph\u00e9p s\u1eed d\u1ee5ng \u0111\u1ec3 ng\u0103n ng\u1eeba m\u00e0i m\u00f2n d\u00e2y. Tuy nhi\u00ean, b\u1ea5t k\u1ef3 ph\u1ee5 ki\u1ec7n n\u00e0o l\u00e0m thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3 s\u1ef1 ph\u00e2n b\u1ed5 kh\u1ed1i l\u01b0\u1ee3ng ho\u1eb7c th\u00f4ng s\u1ed1 v\u1eadt l\u00fd v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n ch\u1ee9c n\u0103ng ti\u00eau chu\u1ea9n \u0111\u1ec1u b\u1ecb coi l\u00e0 kh\u00f4ng h\u1ee3p l\u1ec7.<\/p>\n\n<\/div><\/div><\/div>\n<\/div>\n\n

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\"Th\u1ee3<\/figure>\n<\/div>\n<\/div><\/div>\n<\/div><\/div><\/div>\n\n
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1.5 C\u00e1c L\u1ed7i Th\u01b0\u1eddng g\u1eb7p<\/strong><\/h5>\n\n\n\n

C\u00e1c L\u1ed7i Kh\u00f4ng Tu\u00e2n th\u1ee7 Quy \u0111\u1ecbnh<\/mark> Th\u01b0\u1eddng g\u1eb7p<\/mark><\/strong><\/h2>\n\n\n\n

L\u1ed7i 1: \u0110\u1eb7t Thi\u1ebft b\u1ecb Gi\u1ea3m ch\u1ea5n Kh\u00f4ng H\u1ee3p l\u1ec7.<\/strong>
M\u1ed9t thi\u1ebft b\u1ecb gi\u1ea3m ch\u1ea5n \u0111\u01b0\u1ee3c \u0111\u1eb7t \u1edf b\u1ea5t k\u1ef3 \u0111\u00e2u b\u00ean trong c\u00e1c d\u00e2y \u0111an ch\u00e9o s\u1ebd khi\u1ebfn c\u00e2y v\u1ee3t tennis tr\u1edf n\u00ean kh\u00f4ng h\u1ee3p l\u1ec7. N\u00f3 ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u1eb7t b\u00ean d\u01b0\u1edbi d\u00e2y ngang cu\u1ed1i c\u00f9ng ho\u1eb7c ph\u00eda tr\u00ean d\u00e2y ngang tr\u00ean c\u00f9ng.<\/p>\n\n\n\n

L\u1ed7i 2: Ki\u1ec3u \u0111an d\u00e2y T\u00f9y ch\u1ec9nh C\u1ef1c \u0111oan.<\/strong>
Vi\u1ec7c b\u1ecf qua c\u00e1c l\u1ed7 \u1ed1ng gen (grommet) c\u1ee5 th\u1ec3 \u0111\u1ec3 t\u1ea1o ra m\u1ed9t kho\u1ea3ng tr\u1ed1ng c\u1ef1c r\u1ed9ng, kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u \u1edf gi\u1eefa m\u1eb7t l\u01b0\u1edbi d\u00e2y vi ph\u1ea1m quy t\u1eafc c\u1ee7a ITF r\u1eb1ng ph\u1ea7n trung t\u00e2m kh\u00f4ng \u0111\u01b0\u1ee3c th\u01b0a h\u01a1n c\u00e1c c\u1ea1nh ngo\u00e0i.<\/p>\n\n\n\n

L\u1ed7i 3: B\u1ecf qua Chi\u1ec1u d\u00e0i T\u1ed1i \u0111a.<\/strong>
Th\u00eam c\u00e1c tay c\u1ea7m \u0111\u00fac t\u00f9y ch\u1ec9nh ho\u1eb7c n\u1eafp chu\u00f4i (butt cap) k\u00e9o d\u00e0i m\u00e0 kh\u00f4ng \u0111o l\u1ea1i chi\u1ec1u d\u00e0i cu\u1ed1i c\u00f9ng. N\u1ebfu t\u1ed5ng chi\u1ec1u d\u00e0i c\u00e2y v\u1ee3t v\u01b0\u1ee3t qu\u00e1 29.0 inch, n\u00f3 s\u1ebd b\u1ecb tru\u1ea5t quy\u1ec1n tham gia thi \u0111\u1ea5u ch\u00ednh th\u1ee9c.<\/p>\n\n<\/div><\/div><\/div>\n<\/div>\n\n

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\"Ng\u01b0\u1eddi<\/figure>\n<\/div>\n<\/div><\/div>\n<\/div><\/div><\/div>\n\n
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1.6 Ki\u1ec3m tra T\u00ednh H\u1ee3p l\u1ec7<\/strong><\/h5>\n\n\n\n

Quy tr\u00ecnh Ra Quy\u1ebft \u0111\u1ecbnh Chu\u1ea9n b\u1ecb<\/mark> Gi\u1ea3i \u0111\u1ea5u<\/mark><\/strong><\/h2>\n\n\n\n

M\u1ed9t quy tr\u00ecnh ki\u1ec3m tra t\u00ednh h\u1ee3p l\u1ec7 t\u1eebng b\u01b0\u1edbc l\u00e0 r\u1ea5t quan tr\u1ecdng tr\u01b0\u1edbc khi tham gia thi \u0111\u1ea5u ch\u00ednh th\u1ee9c. H\u00e3y s\u1eed d\u1ee5ng khu\u00f4n kh\u1ed5 \u0111\u01a1n gi\u1ea3n n\u00e0y \u0111\u1ec3 x\u00e1c minh thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n:<\/p>\n\n\n\n

B\u01b0\u1edbc 1: Ki\u1ec3m tra K\u00edch th\u01b0\u1edbc V\u1eadt l\u00fd.<\/strong> \u0110o chi\u1ec1u d\u00e0i v\u00e0 chi\u1ec1u r\u1ed9ng t\u1ed5ng th\u1ec3, \u0111\u1eb7c bi\u1ec7t n\u1ebfu c\u00e1n v\u1ee3t ho\u1eb7c d\u1ea3i b\u1ea3o v\u1ec7 \u0111\u1ea7u v\u1ee3t \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eeda \u0111\u1ed5i. \u0110\u1ea3m b\u1ea3o c\u00e2y v\u1ee3t kh\u00f4ng v\u01b0\u1ee3t qu\u00e1 29.0 inch chi\u1ec1u d\u00e0i v\u00e0 12.5 inch chi\u1ec1u r\u1ed9ng.<\/p>\n\n\n\n

B\u01b0\u1edbc 2: X\u00e1c minh \u0110\u1ed9 \u0110\u1ed3ng \u0111\u1ec1u c\u1ee7a D\u00e2y.<\/strong> Ki\u1ec3m tra ki\u1ec3u \u0111an d\u00e2y. X\u00e1c nh\u1eadn r\u1eb1ng n\u00f3 ph\u1eb3ng, nh\u00ecn chung \u0111\u1ed3ng \u0111\u1ec1u, v\u00e0 m\u1eadt \u0111\u1ed9 \u1edf trung t\u00e2m b\u1eb1ng ho\u1eb7c l\u1edbn h\u01a1n so v\u1edbi c\u00e1c c\u1ea1nh ngo\u00e0i.<\/p>\n\n\n\n

B\u01b0\u1edbc 3: X\u00e1c nh\u1eadn V\u1ecb tr\u00ed Ph\u1ee5 ki\u1ec7n.<\/strong> X\u00e1c minh r\u1eb1ng b\u1ea5t k\u1ef3 thi\u1ebft b\u1ecb gi\u1ea3m ch\u1ea5n n\u00e0o c\u0169ng n\u1eb1m ho\u00e0n to\u00e0n b\u00ean ngo\u00e0i c\u00e1c d\u00e2y \u0111an ch\u00e9o, v\u00e0 m\u1ecdi tr\u1ecdng l\u01b0\u1ee3ng b\u1ed5 sung ho\u1eb7c mi\u1ebfng b\u1ea3o v\u1ec7 d\u00e2y \u0111\u1ec1u ph\u1ee5c v\u1ee5 \u0111\u00fang m\u1ee5c \u0111\u00edch h\u1ee3p ph\u00e1p c\u1ee7a ch\u00fang m\u00e0 kh\u00f4ng vi ph\u1ea1m c\u00e1c quy t\u1eafc c\u1ea5u tr\u00fac.<\/p>\n\n<\/div><\/div><\/div>\n<\/div>\n\n

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\"Th\u1ee3<\/figure>\n<\/div>\n<\/div><\/div>\n<\/div><\/div><\/div>\n\n
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1.7 Ki\u1ebfn th\u1ee9c Chuy\u00ean m\u00f4n<\/strong><\/h5>\n\n\n\n

Gi\u00e1 tr\u1ecb c\u1ee7a Ch\u1ee9ng nh\u1eadn Th\u1ee3 \u0111an v\u1ee3t<\/mark><\/strong><\/h2>\n\n\n\n

Ki\u1ebfn th\u1ee9c quy \u0111\u1ecbnh ph\u00f9 h\u1ee3p l\u00e0 m\u1ed9t ph\u1ea7n c\u1ed1t l\u00f5i c\u1ee7a kh\u00f3a h\u1ecdc \u0111an c\u01b0\u1edbc v\u1ee3t chuy\u00ean nghi\u1ec7p v\u00e0 c\u00e1c ti\u00eau chu\u1ea9n ch\u1ee9ng nh\u1eadn th\u1ee3 \u0111an v\u1ee3t t\u1ed1t. M\u1ed9t Th\u1ee3 \u0111an v\u1ee3t \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn qu\u1ed1c t\u1ebf hi\u1ec3u r\u1eb1ng vi\u1ec7c s\u1eeda \u0111\u1ed5i m\u1ed9t c\u00e2y v\u1ee3t m\u00e0 kh\u00f4ng bi\u1ebft c\u00e1c gi\u1edbi h\u1ea1n c\u1ee7a ITF l\u00e0 m\u1ed9t r\u1ee7i ro l\u1edbn \u0111\u1ed1i v\u1edbi ng\u01b0\u1eddi ch\u01a1i.<\/p>\n\n\n\n

T\u1ea1i Best Stringer Worldwide, ch\u00fang t\u00f4i hi\u1ec3u r\u1eb1ng s\u1ef1 tu\u00e2n th\u1ee7 h\u1ee3p l\u1ec7 \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn l\u1eddi khuy\u00ean d\u00e0nh cho ng\u01b0\u1eddi ch\u01a1i. \u0110i\u1ec1u c\u1ed1t l\u00f5i kh\u00f4ng ch\u1ec9 n\u1eb1m \u1edf k\u1ef9 thu\u1eadt \u0111an c\u01b0\u1edbc v\u1ee3t ch\u00ednh x\u00e1c, m\u00e0 c\u00f2n \u1edf t\u01b0 duy t\u01b0 v\u1ea5n m\u00e0 m\u1ed9t th\u1ee3 \u0111an s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o khung v\u1ee3t lu\u00f4n s\u1eb5n s\u00e0ng cho c\u00e1c gi\u1ea3i \u0111\u1ea5u.<\/p>\n\n\n\n

B\u1eb1ng c\u00e1ch \u01b0u ti\u00ean ki\u1ebfn th\u1ee9c thi\u1ebft b\u1ecb ch\u00ednh x\u00e1c, ch\u1ee9ng nh\u1eadn th\u1ee3 \u0111an c\u1ee7a ch\u00fang t\u00f4i \u0111\u1ea3m b\u1ea3o r\u1eb1ng m\u1ed7i thi\u1ebft l\u1eadp \u0111\u1ec1u c\u00e2n b\u1eb1ng ho\u00e0n h\u1ea3o gi\u1eefa vi\u1ec7c t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t v\u00e0 s\u1ef1 tu\u00e2n th\u1ee7 quy t\u1eafc. B\u1ea1n s\u1ebd lo\u1ea1i b\u1ecf s\u1ef1 ph\u1ecfng \u0111o\u00e1n, ng\u0103n ng\u1eeba vi\u1ec7c b\u1ecb tru\u1ea5t quy\u1ec1n thi \u0111\u1ea5u v\u00e0 ho\u00e0n to\u00e0n t\u1eadp trung v\u00e0o vi\u1ec7c thi \u0111\u1ea5u.<\/p>\n\n<\/div><\/div><\/div>\n<\/div>\n\n

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C\u00e2u h\u1ecfi Th\u01b0\u1eddng g\u1eb7p Nhanh<\/mark> v\u1ec1 Tu\u00e2n th\u1ee7 Thi\u1ebft b\u1ecb<\/mark><\/h2>\n\n\n\n

C\u00e1c c\u00e2u tr\u1ea3 l\u1eddi nhanh, tr\u1ef1c ti\u1ebfp cho nh\u1eefng c\u00e2u h\u1ecfi ph\u1ed5 bi\u1ebfn v\u1ec1 quy \u0111\u1ecbnh v\u1ee3t tennis c\u1ee7a ITF.<\/p>\n\n\n

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Chi\u1ec1u d\u00e0i h\u1ee3p l\u1ec7 t\u1ed1i \u0111a<\/mark> l\u00e0 bao nhi\u00eau?<\/h3>\n\n\n\n

Theo quy \u0111\u1ecbnh tennis c\u1ee7a ITF, chi\u1ec1u d\u00e0i t\u1ed5ng th\u1ec3 c\u1ee7a khung v\u1ee3t, bao g\u1ed3m c\u1ea3 c\u00e1n v\u1ee3t, kh\u00f4ng \u0111\u01b0\u1ee3c v\u01b0\u1ee3t qu\u00e1 29.0 inch (73.7 cm).<\/p>\n\n<\/div><\/div>\n\n

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T\u00f4i c\u00f3 th\u1ec3 \u0111\u1eb7t thi\u1ebft b\u1ecb gi\u1ea3m ch\u1ea5n<\/mark> \u1edf \u0111\u00e2u?<\/h3>\n\n\n\n

C\u00e1c thi\u1ebft b\u1ecb gi\u1ea3m ch\u1ea5n ch\u1ec9 \u0111\u01b0\u1ee3c ph\u00e9p \u0111\u1eb7t b\u00ean ngo\u00e0i ki\u1ec3u d\u00e2y \u0111an ch\u00e9o. Vi\u1ec7c \u0111\u1eb7t ch\u00fang b\u00ean trong khu v\u1ef1c d\u00e2y \u0111an ch\u00e9o l\u00e0 kh\u00f4ng h\u1ee3p l\u1ec7.<\/p>\n\n<\/div><\/div>\n\n

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C\u00e1c ki\u1ec3u \u0111an d\u00e2y t\u00f9y ch\u1ec9nh<\/mark> c\u00f3 \u0111\u01b0\u1ee3c ph\u00e9p kh\u00f4ng?<\/h3>\n\n\n\n

Ki\u1ec3u \u0111an d\u00e2y nh\u00ecn chung ph\u1ea3i \u0111\u1ed3ng \u0111\u1ec1u v\u00e0 ph\u1eb3ng. Quan tr\u1ecdng nh\u1ea5t, m\u1eb7t l\u01b0\u1edbi d\u00e2y \u1edf khu v\u1ef1c trung t\u00e2m kh\u00f4ng \u0111\u01b0\u1ee3c th\u01b0a h\u01a1n b\u1ea5t k\u1ef3 khu v\u1ef1c n\u00e0o kh\u00e1c.<\/p>\n\n<\/div><\/div>\n\n

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Gi\u1edbi h\u1ea1n k\u00edch th\u01b0\u1edbc cho khu v\u1ef1c \u0111\u00e1nh b\u00f3ng<\/mark> l\u00e0 bao nhi\u00eau?<\/h3>\n\n\n\n

B\u1ec1 m\u1eb7t \u0111\u00e3 \u0111an d\u00e2y kh\u00f4ng \u0111\u01b0\u1ee3c v\u01b0\u1ee3t qu\u00e1 15.5 inch (39.4 cm) chi\u1ec1u d\u00e0i t\u1ed5ng th\u1ec3 v\u00e0 11.5 inch (29.2 cm) chi\u1ec1u r\u1ed9ng t\u1ed5ng th\u1ec3.<\/p>\n\n<\/div><\/div>\n\n

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T\u00f4i c\u00f3 th\u1ec3 th\u00eam tr\u1ecdng l\u01b0\u1ee3ng<\/mark> v\u00e0o khung v\u1ee3t kh\u00f4ng?<\/h3>\n\n\n\n

C\u00f3, vi\u1ec7c th\u00eam tr\u1ecdng l\u01b0\u1ee3ng nh\u01b0 b\u0103ng ch\u00ec \u0111\u1ec3 c\u00e2n b\u1eb1ng v\u00e0 ph\u00e2n b\u1ed5 tr\u1ecdng l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c cho ph\u00e9p, mi\u1ec5n l\u00e0 n\u00f3 kh\u00f4ng l\u00e0m thay \u0111\u1ed5i h\u00ecnh d\u00e1ng \u0111\u1ed9ng h\u1ecdc c\u1ee7a c\u00e2y v\u1ee3t trong qu\u00e1 tr\u00ecnh \u0111\u00e1nh b\u00f3ng.<\/p>\n\n<\/div><\/div>\n\n

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T\u1ea1i sao l\u1ea1i so s\u00e1nh quy \u0111\u1ecbnh c\u1ee7a tennis v\u1edbi c\u1ea7u l\u00f4ng<\/mark>?<\/h3>\n\n\n\n

C\u00e1c th\u1ee3 \u0111an v\u1ee3t c\u1ea7u l\u00f4ng khi t\u00ecm hi\u1ec3u c\u00e1c quy t\u1eafc \u0111a m\u00f4n th\u1ec3 thao s\u1ebd c\u00f3 l\u1ee3i khi th\u1ea5y \u0111\u01b0\u1ee3c s\u1ef1 t\u01b0\u01a1ng ph\u1ea3n ch\u00ednh x\u00e1c v\u1ec1 k\u00edch th\u01b0\u1edbc. V\u00ed d\u1ee5, m\u1ed9t c\u00e2y v\u1ee3t c\u1ea7u l\u00f4ng h\u1ee3p l\u1ec7 \u0111\u01b0\u1ee3c gi\u1edbi h\u1ea1n \u1edf chi\u1ec1u d\u00e0i 680mm, ng\u1eafn h\u01a1n nhi\u1ec1u so v\u1edbi khung v\u1ee3t tennis.<\/p>\n\n<\/div><\/div>\n\n

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Th\u1ee3 \u0111an v\u1ee3t n\u00ean ki\u1ec3m tra \u0111i\u1ec1u g\u00ec tr\u01b0\u1edbc khi s\u1eeda \u0111\u1ed5i<\/mark>?<\/h3>\n\n\n\n

M\u1ed9t th\u1ee3 \u0111an v\u1ee3t chuy\u00ean nghi\u1ec7p lu\u00f4n ph\u1ea3i x\u00e1c minh r\u1eb1ng vi\u1ec7c k\u00e9o d\u00e0i tay c\u1ea7m ho\u1eb7c thay th\u1ebf \u1ed1ng gen (grommet) s\u1ebd kh\u00f4ng \u0111\u1ea9y c\u00e2y v\u1ee3t v\u01b0\u1ee3t qu\u00e1 c\u00e1c gi\u1edbi h\u1ea1n nghi\u00eam ng\u1eb7t l\u00e0 29.0 inch chi\u1ec1u d\u00e0i ho\u1eb7c 12.5 inch chi\u1ec1u r\u1ed9ng.<\/p>\n\n<\/div><\/div>\n\n

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T\u1ea1i sao ch\u1ee9ng nh\u1eadn th\u1ee3 \u0111an v\u1ee3t<\/mark> l\u1ea1i quan tr\u1ecdng trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y?<\/h3>\n\n\n\n

M\u1ed9t kh\u00f3a h\u1ecdc \u0111an c\u01b0\u1edbc v\u1ee3t to\u00e0n di\u1ec7n s\u1ebd d\u1ea1y c\u00e1c ranh gi\u1edbi h\u1ee3p l\u1ec7 ch\u00ednh x\u00e1c c\u1ee7a vi\u1ec7c tinh ch\u1ec9nh. M\u1ed9t Th\u1ee3 \u0111an v\u1ee3t \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn qu\u1ed1c t\u1ebf gi\u00fap b\u1ea3o v\u1ec7 ng\u01b0\u1eddi ch\u01a1i kh\u1ecfi vi\u1ec7c s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb kh\u00f4ng tu\u00e2n th\u1ee7 trong c\u00e1c tr\u1eadn \u0111\u1ea5u c\u1ea1nh tranh.<\/p>\n\n<\/div><\/div>\n\n

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C\u00e1c kh\u00f3a h\u1ecdc \u0111an c\u01b0\u1edbc v\u1ee3t c\u00f3 c\u1ea7n thi\u1ebft<\/mark> kh\u00f4ng?<\/h3>\n\n\n\n

\u0110\u1ed1i v\u1edbi nh\u1eefng ng\u01b0\u1eddi mu\u1ed1n n\u1eafm v\u1eefng k\u1ef9 n\u0103ng t\u01b0 v\u1ea5n thi\u1ebft b\u1ecb, th\u00ec c\u00f3. Th\u1ee3 \u0111an v\u1ee3t s\u1ebd h\u1ecdc \u0111\u01b0\u1ee3c \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh trong \u0111o l\u01b0\u1eddng, c\u00e1ch th\u1eaft n\u00fat ch\u00ednh x\u00e1c v\u00e0 t\u01b0 duy \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh thi\u1ebft l\u1eadp d\u00e2y ph\u00f9 h\u1ee3p v\u1edbi gi\u1edbi h\u1ea1n h\u1ee3p l\u1ec7, lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n s\u1ef1 ph\u1ecfng \u0111o\u00e1n.<\/p>\n\n<\/div><\/div>\n<\/div>\n\n

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Thi\u1ebft l\u1eadp Thi\u1ebft b\u1ecb Thi \u0111\u1ea5u: C\u00e1c Tinh ch\u1ec9nh<\/mark> H\u1ee3p l\u1ec7<\/h2>\n\n\n\n
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