Who swims in which lane?
I · Intermediate · The race · 5 of 7Lanes are given by time. In an eight-lane pool the fastest qualifier swims in lane 4 and the second fastest in lane 5. The rest alternate outwards, so the slowest two qualifiers are in lanes 1 and 8. Lane 1 is on the right of the pool as seen from the starting end.
How it works
- Eight lanes: "the fastest Athlete will be assigned lane four (4), the second-fastest Athlete will be assigned lane five (5)", and the rest go alternately to the right and left of those two.
- The result: ranks one to eight swim in lanes 4, 5, 3, 6, 2, 7, 1 and 8.
- Lane 1: "the first lane on the right hand side of the pool when facing the course from the starting end".
- Ten lanes: the lanes are numbered 0 to 9, and the fastest two still take lanes 4 and 5.
- Six lanes: the fastest takes lane 3 and the second fastest lane 4.
- An odd number of lanes: the fastest takes the centre lane.
- Which times: entry times for the heats. For semi-finals and finals, the official times from the round before.
- Equal times: swimmers who cannot be separated are given the next lanes by random draw.
- 50 m races: in a 50 m pool they may be started from the turning end. The lanes keep the numbers they have from the usual starting end.
- How many lanes: Olympic heats, semi-finals and finals use eight. World Championship heats may use ten.
This is the lane assignment of the glossary.
Tricky cases
Does the fastest qualifier get to choose a lane?
No. The fastest swimmer is assigned lane 4.
Can a swimmer win from lane 8?
Yes. Lanes are a seeding, not a handicap. Every lane is the same length.
In a ten-lane pool, is the fastest swimmer in lane 5?
No. The lanes are numbered from 0, and the fastest swimmer is still in lane 4.
Is lane 1 on the left or the right?
On the right, for someone standing at the starting end and facing down the pool.
Why the rule exists
Putting the fastest swimmers side by side in the middle lets them see and race one another, and it puts them furthest from the walls, where the water was once rougher. The arrangement also makes a race easy to read: the favourites are in the centre.
Where it differs
| Where | What changes | Source |
|---|---|---|
| World Aquatics rules | As above | SW 3.1; SW 3.2.5; SW 3.3.4; SW 3.4.4 |
| Competitions outside the World Aquatics system | A draw may be used | SW 3.6 |
| Lane width | 2.5 m at the Olympic Games, with an empty strip outside the first and last lanes | SW 15.6.1 |
From the rule book
World Aquatics, Competition Regulations, Part Two: Swimming Rules (in force as from February 2026), Articles 3.1, 3.2.5, 3.3.4, 3.4.4 and 15.6. Checked 14 October 2026. Official document: World Aquatics Competition Regulations (PDF).