swimTatsumasa Sekine
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 15.27 | 2026-01-18 | 2026 Brian Malick Memorial Z1S Championships venue | |
| 50 Freestyle | SCY | 31.03 | +7.84s to Sectionals | 2026-03-21 | SCY Spring Age Group Championships venue |
| 100 Freestyle | SCY | 1:08.53 | +17.54s to Sectionals | 2026-04-11 | 2026 Far Western SC Hosted By SCSC venue |
| 200 Freestyle | SCY | 2:45.86 | +54.07s to Sectionals | 2026-02-28 | Swim South Bay venue |
| 25 Backstroke | SCY | 17.88 | 2026-01-17 | 2026 Brian Malick Memorial Z1S Championships venue | |
| 50 Backstroke | SCY | 35.79 | +12.10s to Futures | 2026-04-12 | 2026 Far Western SC Hosted By SCSC venue |
| 100 Backstroke | SCY | 1:19.49 | +24.00s to Sectionals | 2026-03-29 | Swim South Bay venue |
| 25 Breaststroke | SCY | 20.76 | 2026-01-17 | 2026 Brian Malick Memorial Z1S Championships venue | |
| 50 Breaststroke | SCY | 42.68 | +16.39s to Futures | 2026-03-29 | Swim South Bay venue |
| 100 Breaststroke | SCY | 1:30.51 | +27.32s to Sectionals | 2026-03-28 | Swim South Bay venue |
| 25 Butterfly | SCY | 15.26 | 2026-01-17 | 2026 Brian Malick Memorial Z1S Championships venue | |
| 50 Butterfly | SCY | 31.94 | +9.05s to Futures | 2026-04-11 | 2026 Far Western SC Hosted By SCSC venue |
| 100 Butterfly | SCY | 1:13.74 | +18.55s to Sectionals | 2026-03-21 | SCY Spring Age Group Championships venue |
| 100 Individual Medley | SCY | 1:15.55 | 2026-04-11 | 2026 Far Western SC Hosted By SCSC venue | |
| 200 Individual Medley | SCY | 2:45.32 | +41.33s to Sectionals | 2026-03-01 | Swim South Bay venue |
| 50 Freestyle | LCM | 34.80 | +7.81s to Sectionals | 2026-06-28 | 2026 Santa Clara LC Race To Age Group Champs venue |
| 100 Freestyle | LCM | 1:17.25 | +18.26s to Sectionals | 2026-06-27 | 2026 Santa Clara LC Race To Age Group Champs venue |
| 50 Backstroke | LCM | 39.33 | +11.44s to Futures | 2026-06-20 | Zone 1 South Swim Under the Stars venue |
| 50 Breaststroke | LCM | 45.97 | +15.08s to Futures | 2026-06-27 | 2026 Santa Clara LC Race To Age Group Champs venue |
| 50 Butterfly | LCM | 35.15 | +8.86s to Futures | 2026-06-27 | 2026 Santa Clara LC Race To Age Group Champs venue |
| 100 Butterfly | LCM | 1:20.33 | +17.24s to Sectionals | 2026-06-28 | 2026 Santa Clara LC Race To Age Group Champs venue |
National cuts (Sectionals → Nationals) are the current-season meet qualifying times for the swimmer's zone and age group; ✓ marks the hardest cut already achieved.
IMX / IMR
IMX 10 & under · SCY
3431 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:45.86 | 512 |
| 100 BK SCY | 1:19.49 | 653 |
| 100 BR SCY | 1:30.51 | 659 |
| 100 FL SCY | 1:13.74 | 847 |
| 200 IM SCY | 2:45.32 | 760 |
IMR 10 & under · SCY
3723 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 100 FR SCY | 1:08.53 | 694 |
| 50 BK SCY | 35.79 | 727 |
| 50 BR SCY | 42.68 | 619 |
| 50 FL SCY | 31.94 | 895 |
| 100 IM SCY | 1:15.55 | 788 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:08.53
Front half 32.41s · back half 36.12s
100 Butterfly SCY 1:13.74
Front half 34.33s · back half 39.41s
100 Individual Medley SCY 1:15.55
Front half 35.35s · back half 40.20s
100 Freestyle LCM 1:17.25
Front half 37.82s · back half 39.43s
100 Butterfly LCM 1:20.33
Front half 39.00s · back half 41.33s
Progression
Faster times are higher. One card per event, all courses & history.