swimLeila Kobayashi
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 28.53 | A+0.34s to AA | 2026-04-19 | 44th Annual Harry Mamizuka Invitational venue |
| 100 Freestyle | SCY | 1:02.41 | A+1.02s to AA | 2026-04-18 | 44th Annual Harry Mamizuka Invitational venue |
| 200 Freestyle | SCY | 2:22.69 | BB+2.70s to A | 2026-04-19 | 44th Annual Harry Mamizuka Invitational venue |
| 500 Freestyle | SCY | 6:39.65 | BB+24.76s to A | 2026-02-07 | Aulea Winter Distance Festival venue |
| 50 Backstroke | SCY | 34.03 | BB+0.74s to A | 2026-04-19 | 44th Annual Harry Mamizuka Invitational venue |
| 100 Backstroke | SCY | 1:16.44 | BB+3.45s to A | 2026-02-26 | 2026 HI Hawaiian Swimming SCY AGChamps fast pool |
| 200 Backstroke | SCY | 2:46.27 | BB+11.88s to A | 2025-10-19 | Aulea Fall Frenzy Meet venue |
| 50 Breaststroke | SCY | 37.19 | A+1.00s to AA | 2026-03-28 | Alto Rock the Blocks Invitational 2026 venue |
| 100 Breaststroke | SCY | 1:21.19 | A+2.50s to AA | 2026-04-19 | 44th Annual Harry Mamizuka Invitational venue |
| 200 Breaststroke | SCY | 3:03.42 | BB+6.93s to A | 2026-03-01 | 2026 HI Hawaiian Swimming SCY AGChamps fast pool |
| 50 Butterfly | SCY | 31.32 | A+0.93s to AA | 2026-04-18 | 44th Annual Harry Mamizuka Invitational venue |
| 100 Butterfly | SCY | 1:12.59 | BB+0.30s to A | 2026-04-19 | 44th Annual Harry Mamizuka Invitational venue |
| 100 Individual Medley | SCY | 1:12.67 | A+2.58s to AA | 2026-03-29 | Alto Rock the Blocks Invitational 2026 venue |
| 200 Individual Medley | SCY | 2:39.89 | BB+2.20s to A | 2026-02-28 | 2026 HI Hawaiian Swimming SCY AGChamps fast pool |
| 400 Individual Medley | SCY | 5:58.96 | BB+22.67s to A | 2026-02-07 | Aulea Winter Distance Festival venue |
| 50 Freestyle | LCM | 32.63 | A+0.64s to AA | 2026-06-07 | 2026 15th Annual Wada Rainbow Invitational - venue |
| 100 Freestyle | LCM | 1:12.65 | A+2.26s to AA | 2026-07-03 | 2026 Keo Nakama Swim Meet venue |
| 200 Freestyle | LCM | 2:43.03 | BB+2.94s to A | 2026-06-07 | 2026 15th Annual Wada Rainbow Invitational - venue |
| 50 Backstroke | LCM | 38.93 | BB+0.44s to A | 2026-07-05 | 2026 Keo Nakama Swim Meet venue |
| 100 Backstroke | LCM | 1:25.33 | BB+0.54s to A | 2026-07-05 | 2026 Keo Nakama Swim Meet venue |
| 200 Backstroke | LCM | 3:05.90 | BB+7.51s to A | 2026-07-04 | 2026 Keo Nakama Swim Meet venue |
| 50 Breaststroke | LCM | 43.38 | BB+0.69s to A | 2026-05-23 | OSL A+ LCM Meet venue |
| 100 Breaststroke | LCM | 1:38.55 | BB+4.56s to A | 2026-06-07 | 2026 15th Annual Wada Rainbow Invitational - venue |
| 50 Butterfly | LCM | 36.14 | BB+0.35s to A | 2026-06-06 | 2026 15th Annual Wada Rainbow Invitational - venue |
| 100 Butterfly | LCM | 1:27.22 | BB+4.53s to A | 2026-06-07 | 2026 15th Annual Wada Rainbow Invitational - venue |
| 200 Individual Medley | LCM | 3:02.58 | BB+1.89s to A | 2026-06-06 | 2026 15th Annual Wada Rainbow Invitational - venue |
| 400 Individual Medley | LCM | 6:33.70 | BB+8.91s to A | 2026-07-05 | 2026 Keo Nakama Swim Meet venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 12.
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 | 29.70 | flat | 200 Free Relay | 2026-03-01 | 2026 HI Hawaiian Swimming SCY AGChamps |
| 50 Freestyle | SCY | 29.64 | flying | 200 Free Relay (leg 4) | 2026-03-28 | Alto Rock the Blocks Invitational 2026 |
| 50 Backstroke | SCY | 35.19 | flat | 200 Medley Relay | 2026-02-27 | 2026 HI Hawaiian Swimming SCY AGChamps |
| 100 Freestyle | LCM | 1:11.28 | flying | 400 Free Relay (leg 4) | 2026-07-05 | 2026 Keo Nakama Swim Meet |
| 100 Backstroke | LCM | 1:26.31 | flat | 400 Medley Relay | 2026-07-04 | 2026 Keo Nakama Swim Meet |
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 11-12 · SCY
3041 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 6:39.65 | 551 |
| 100 BK SCY | 1:16.44 | 551 |
| 100 BR SCY | 1:21.19 | 682 |
| 100 FL SCY | 1:12.59 | 616 |
| 200 IM SCY | 2:39.89 | 641 |
IMR 11-12 · SCY
3315 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:22.69 | 623 |
| 50 BK SCY | 34.03 | 624 |
| 50 BR SCY | 37.19 | 698 |
| 50 FL SCY | 31.32 | 691 |
| 100 IM SCY | 1:12.67 | 679 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:02.41
Front half 29.87s · back half 32.54s
200 Freestyle SCY 2:22.69
Front half 68.68s · back half 74.01s
500 Freestyle SCY 6:39.65
Front half 193.72s · back half 205.93s
100 Backstroke SCY 1:16.44
Front half 37.45s · back half 38.99s
100 Breaststroke SCY 1:21.19
Front half 39.36s · back half 41.83s
200 Breaststroke SCY 3:03.42
Front half 87.15s · back half 96.27s
100 Butterfly SCY 1:12.59
Front half 33.82s · back half 38.77s
100 Individual Medley SCY 1:12.67
Front half 35.11s · back half 37.56s
200 Individual Medley SCY 2:39.89
Front half 76.61s · back half 83.28s
400 Individual Medley SCY 5:58.96
Front half 176.42s · back half 182.54s
200 Freestyle LCM 2:43.03
Front half 78.87s · back half 84.16s
200 Backstroke LCM 3:05.90
Front half 91.55s · back half 94.35s
200 Individual Medley LCM 3:02.58
Front half 87.79s · back half 94.79s
400 Individual Medley LCM 6:33.70
Front half 197.00s · back half 196.70s
Progression
Faster times are higher. One card per event, all courses & history.