The 50 butterfly is a sprint through the most demanding stroke in swimming: two lengths of maximum-power undulation where rhythm and timing matter as much as strength. Fly rewards commitment - a hesitant, flat stroke is exhausting, while a well-timed one with a strong body wave almost carries itself. Over 50 meters there's nowhere for technique to hide, but also no time for the stroke's brutal fatigue to fully arrive. Blink and it's over; misjudge it and the last 10 meters are agony.
| Level (Time) | Men | Women |
|---|---|---|
| beginner | 1:10+ | 1:20+ |
| novice | 0:55 | 1:02 |
| intermediate | 0:45 | 0:51 |
| advanced | 0:37 | 0:42 |
| elite | sub 0:31 | sub 0:35 |
Adult times, 25 m pool.
Keep the stroke big and committed - shortening your fly to go 'faster' is the universal sprint fly mistake. Two strong kicks per arm cycle, hips driving the wave, breath every second stroke at most (elite: 1-2 breaths total). Attack the underwater dolphin kicks off start and turn; they're often the fastest meters of your race. Train it with 15-25 m bursts at full quality - sprint fly practiced tired just rehearses bad habits.
Beginner: 15 m fly bursts with fins to learn the rhythm, or drill one-arm fly. Build to 25 m sprints before racing a full 50.
Log every result, see your progress over time, and know exactly where you stand.