StrokeLab

Find the 15 m mark

Start at the wall the swimmer pushed off. Then match your pool to one of the examples below.

M

In StrokeLab, press M when the swimmer's head crosses the marked lane-rope floats.

25 m or 25 yd pool

Use the marker past halfway, closer to the opposite wall.

The 15 m lane-rope marker highlighted past halfway in a short-course pool
Use this The highlighted color change is the 15 m mark.

50 m pool

Use the marker about one-third of the way from the wall.

The first lane-rope color marker away from the wall highlighted as the 15 m mark
Use this If there is no marker beside the wall, use the first color change.
A 5 m marker beside the wall crossed out and the next lane-rope marker highlighted as the 15 m mark
Skip 5 m If a marker is right beside the wall, skip it and use the next one.

No clear lane-rope marker?

Estimate 15 m from the push-off wall: just past halfway in a 25 m or 25 yd pool, or about one-third of a 50 m pool.

StrokeLab by Swimmetrix