swimJonah Elfers
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Butterfly | SCY | 22.74 | 2025-07-19 | MSS 2025 Last Splash fast pool | |
| 100 Butterfly | SCY | 51.44 | 2025-07-19 | MSS 2025 Last Splash fast pool |
Pool tags are a venue speed heuristic (median deviation of all swims there vs each swimmer's typical time) — see the venue page for the method.
PR splits
100 Butterfly SCY 51.44
Front half 24.06s · back half 27.38s
Progression
Faster times are higher. One card per event, all courses & history.