What may a thrower put on their hands?

Not allowed:

• Fingers taped together: "The taping of two or more fingers together." Tape on the hands and fingers may be continuous, provided no two fingers are bound so that they cannot move on their own. It should be shown to the chief judge before the event.
• Devices: "any device of any kind, including weights attached to the body, which in any way provides assistance when making a trial".
• Gloves: "The use of gloves except in the Hammer Throw."
• The circle and the shoes: spraying or spreading any substance in the circle or on the shoes, and roughening the surface of the circle.
• Body fluids: spitting on an implement, or putting body fluids on it in any other way.

Allowed:

• On the hands: "a suitable substance on their hands only". A shot putter may also use it on the neck.
• On the shot: chalk or a similar substance may be put on the implement.
• Taping: tape on the hands and fingers that does not bind fingers together.
• Easily removed: anything used on the hands, gloves or implements must come off the implement with a wet cloth and leave no residue.
• Tape on a shoe: a note added in 2026 says tape on the outside of a throwing shoe is acceptable and should be shown to the chief judge first.

If the judges notice a breach they tell the athlete to put it right. If the athlete does not, the trial is a failure. A trial completed before the breach was noticed is also a failure. Serious cases may be dealt with as misconduct.

Grip is part of the skill, so the rule allows what keeps a hand dry and stops what would do the hand's work for it. Fingers taped together act as one stronger lever. Whatever goes on the shot has to wipe off, because the next athlete may use the same one.