How does a bouldering competition work?
B · Beginner · The boulder and the score · 1 of 4Climbers take on a set of short climbs, called boulders, without a rope and above thick matting. Each climber gets a fixed period on each boulder, five minutes in the early rounds and up to four in the final, and may try as often as the time allows. Points for reaching the top or a marked zone decide the ranking.
How it works
- No rope: "Competitors attempt to climb short routes (boulders) without a rope."
- Three rounds: qualification on five boulders, a semi-final on four and a final on four.
- How many climbers: up to 60 in qualification, 24 in the semi-final and 8 in the final.
- The time: five minutes on each boulder in qualification and the semi-final, and at most four in the final.
- Rotations: each climber attempts the boulders in a set order, with 15 seconds between rotations to clear the floor.
- As many tries as fit: "Competitors may make multiple attempts within a rotation period."
- The whole boulder: each attempt must be at the entire boulder. Practising one part is not allowed.
- On-sight: climbers have not seen anyone else try the boulders.
- In the final: the rotation ends when everyone on the floor has finished or the maximum time is up.
- Brushing: climbers may clean holds with the equipment provided, or ask a brusher to do it.
- Ties at the cut: climbers tied in the last qualifying place all go through.
The glossary has the boulder event format, the boulder, the rotation, the attempt, the quota and bouldering.
Tricky cases
A climber falls with ten seconds left and jumps straight back on. Does the attempt count if the time runs out while they are climbing?
An attempt is ruled unsuccessful when the allowed climbing time has expired. The top must be secured before the time expires.
Can a climber try the top section alone to learn it?
No. Each boulder must be attempted in its entirety and climbers must not practise any part of it.
A climber jumps up to brush a high hold. Is that an attempt?
No, provided they do not use the climbing surface or touch any other hold in doing so.
Seven climbers are due to qualify from a group and two are tied for seventh. Who goes through?
Both. The quota includes any climbers tied in the last qualifying position.
Why the rule exists
A boulder is a puzzle that few solve at the first try, so the format gives time and lets the climber spend it as they choose: more tries with less rest, or fewer with more. Keeping climbers from seeing each other's attempts makes each of them solve it alone.
Where it differs
| Where | What changes | Source |
|---|---|---|
| Qualification | Five boulders, five minutes each, up to 60 climbers | WC Event Regulations, Annex C 2.1 |
| Semi-final | Four boulders, five minutes each, 24 climbers | WC Event Regulations, Annex C 2.1 |
| Final | Four boulders, four minutes at most, 8 climbers | WC Event Regulations, Annex C 2.1 |
| Large fields | Two starting groups on separate sets of boulders | WC Event Regulations, Annex C 2.2 |
| Youth events | Flash formats may be used in qualification | WC Event Regulations, Annex C 2.3 |
From the rule book
World Climbing, Competition Rules (version 3, January 2026), Rules 6.7 to 6.9; World Climbing, Event Regulations (version 3, January 2026), Annex C sections 1, 2 and 4. Checked 14 October 2026. Official documents: World Climbing Competition Rules, January 2026 (PDF) and World Climbing Event Regulations, January 2026 (PDF).