Kai Yu
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 100 Backstroke | SCY | 1:34.60 | 2026-03-01 | 2026 Winter ISI Regionals- PAC fast pool | |
| 50 Breaststroke | SCY | 51.86 | 2026-03-01 | 2026 Winter ISI Regionals- PAC fast pool | |
| 100 Breaststroke | SCY | 2:00.35 | 2026-02-28 | 2026 Winter ISI Regionals- PAC fast pool | |
| 50 Freestyle | LCM | 41.24 | 2026-01-01 | LFSC SwimFest, Presented by The Lake Forest Swim Club, 4-5/Ju, S#: WI2024-504S | |
| 100 Freestyle | LCM | 1:36.78 | 2026-01-01 | LFSC SwimFest, Presented by The Lake Forest Swim Club, 4-5/Ju, S#: WI2024-504S | |
| 50 Backstroke | LCM | 49.89 | 2026-01-01 | 41st Annual Daniel Jaekel Friendship Classic, 3-4/May 2025, S#: WI-26-2008 | |
| 100 Backstroke | LCM | 1:47.63 | 2026-01-01 | LFSC SwimFest, Presented by The Lake Forest Swim Club, 4-5/Ju, S#: WI2024-504S | |
| 50 Breaststroke | LCM | 1:00.96 | 2026-01-01 | 41st Annual Daniel Jaekel Friendship Classic, 3-4/May 2025, S#: WI-26-2008 | |
| 100 Breaststroke | LCM | 2:04.97 | 2026-01-01 | 41st Annual Daniel Jaekel Friendship Classic, 3-4/May 2025, S#: WI-26-2008 |
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.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Freestyle | SCY | 36.33 | flying | 200 Free Relay (leg 2) | 2026-03-01 | 2026 Winter ISI Regionals- PAC |
| 50 Breaststroke | SCY | 55.91 | flying | 200 Medley Relay (leg 2) | 2026-02-28 | 2026 Winter ISI Regionals- PAC |
Reconstructed from relay split marks. Flat = lead-off (comparable to individual times); flying starts run ~0.5–0.7s fast and are not PRs.
IMX / IMR
IMX 10 & under · LCM
804 points (2/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK LCM | 1:47.63 | 410 |
| 100 BR LCM | 2:04.97 | 394 |
| 200 FR LCM | — | 0 |
| 100 FL LCM | — | 0 |
| 200 IM LCM | — | 0 |
IMR 10 & under · LCM
1096 points (3/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 FR LCM | 1:36.78 | 374 |
| 50 BK LCM | 49.89 | 407 |
| 50 BR LCM | 1:00.96 | 315 |
| 50 FL LCM | — | 0 |
| 200 IM LCM | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Backstroke SCY 1:34.60
Front half 45.83s · back half 48.77s
100 Breaststroke SCY 2:00.35
Front half 57.92s · back half 62.43s
Progression
Faster times are higher. One card per event, all courses & history.