Perform a butterfly start, then kick in a streamlined position up to a maximum of 15 metres from the start point (wall). Transfer into stroke and complete the remainder of the 25 metres.

a. Start with either a track or grab start.

b. Enter the water in as streamlined a position as possible – hands, arms,
head, torso, hips, legs and feet entering into the same position.

c. Maintain the streamlined position under water (see above).

d. The swimmer should travel a maximum of 15 metres before the head breaks the surface.

e. Once the swimmer has broken the surface they will continue swimming
butterfly.

f. The swimmer will end with a finish.