swimJoseph Tseng
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 22.96 | 2026-02-13 | 2026 (WIAA) Sea-King District II 4ABoys HS OB venue | |
| 100 Backstroke | SCY | 59.07 | 2025-01-11 | 2025 Kentridge HS Invitational BOYS OBSERVED venue | |
| 100 Butterfly | SCY | 52.00 | 2026-02-14 | 2026 (WIAA) Sea-King District II 4ABoys HS OB venue | |
| 50 Freestyle | LCM | 27.07 | 2025-07-19 | 2025 PN 13&O LC Senior Championships venue | |
| 100 Freestyle | LCM | 58.58 | 2025-07-20 | 2025 PN 13&O LC Senior Championships venue | |
| 200 Freestyle | LCM | 1:59.26 | 2025-07-17 | 2025 PN 13&O LC Senior Championships | |
| 50 Butterfly | LCM | 27.93 | 2025-07-18 | 2025 PN 13&O LC Senior Championships venue | |
| 100 Butterfly | LCM | 57.06 | 2025-07-17 | 2025 PN 13&O LC Senior Championships |
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Freestyle | SCY | 22.69 | flying | 200 Free Relay (leg 4) | 2026-02-14 | 2026 (WIAA) Sea-King District II 4ABoys HS OB |
| 100 Freestyle | SCY | 51.11 | flat | 400 Free Relay | 2026-02-14 | 2026 (WIAA) Sea-King District II 4ABoys HS OB |
| 50 Butterfly | SCY | 24.51 | flying | 200 Medley Relay (leg 3) | 2024-02-17 | 2024 OB WIAA 3A Boys H.S. State |
Reconstructed from relay split marks. Flat = lead-off (comparable to individual times); flying starts run ~0.5–0.7s fast and are not PRs.
PR splits
100 Backstroke SCY 59.07 RT 0.69s
Front half 28.27s · back half 30.80s
100 Butterfly SCY 52.00
Front half 24.24s · back half 27.76s
Reaction time
From electronically-timed starts only (~2% of corpus swims carry a reaction time). PRs with a recorded reaction show an RT chip in the splits section above.
Progression
Faster times are higher. One card per event, all courses & history.