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judo
International Judo Federation
Rules from IJF Sport and Organisation Rules (2026) and IJF Judogi Rules appendix. Last checked 16 October 2026.
In SA: Judo South Africa (IJF member; follows IJF rules)
Gis & uniforms
- 01
Judogi colour assignment
The athlete on top of the draw sheet wears a white judogi; the one below wears blue.
all competitors
- 02
Judogi colour standard
Jacket and trousers one uniform colour: snow white, or the IJF blue. Reversible white/blue judogi are banned. Black is not allowed.
all competitors
- 03
Jacket length
Jacket skirt must fully cover the buttocks plus 5-10 cm, equal length front and back.
all competitors
- 04
Lapel crossing
Lapels must cross at least 25 cm apart at belt level.
all competitors
- 05
Lapel size
Lapel thickness max 1 cm; lapel width 4 cm.
all competitors
- 06
Sleeve length
Sleeves must cover the full arm including the wrist bone with arms held level, loose enough for the official gauge to slide inside.
all competitors
- 07
Trouser length and width
Trouser hem 5 cm or less from the ankle bone; leg width at the knee 10-15 cm.
all competitors
- 08
Women's T-shirt
Women wear a plain white, short-sleeved, round-neck T-shirt under the jacket.
female competitors
Other
- 09
IJF label
At IJF events jacket, trousers and belt must carry the IJF approval label.
IJF events
Belts
- 10
Belt
Belt 4-5 mm thick; tips 20-30 cm from the knot; not stiff or slippery, tied tightly.
all competitors
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