swimKatherine Bai
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 28.41 | BB+0.72s to A | 2026-02-27 | 2026 IES Short Course Championships fast pool |
| 100 Freestyle | SCY | 1:06.41 | B+1.32s to BB | 2023-03-05 | 2023 IES Short Course Championships fast pool |
| 200 Freestyle | SCY | 2:20.99 | B+0.50s to BB | 2026-02-28 | 2026 IES Short Course Championships fast pool |
| 500 Freestyle | SCY | 6:33.32 | B+14.33s to BB | 2026-02-27 | 2026 IES Short Course Championships fast pool |
| 50 Backstroke | SCY | 40.47 | +4.58s to B | 2022-10-30 | 2022 IE VAN Trick or Treat fast pool |
| 100 Backstroke | SCY | 1:27.82 | +11.93s to B | 2021-12-18 | 2021 LCN Reindeer Splash venue |
| 50 Breaststroke | SCY | 40.09 | B+1.20s to BB | 2024-02-11 | Cougar Classic fast pool |
| 100 Breaststroke | SCY | 1:29.74 | +2.25s to B | 2024-02-10 | Cougar Classic fast pool |
| 50 Butterfly | SCY | 34.16 | B+1.37s to BB | 2024-02-10 | Cougar Classic fast pool |
| 100 Butterfly | SCY | 1:19.32 | +3.53s to B | 2024-02-10 | Cougar Classic fast pool |
| 100 Individual Medley | SCY | 1:19.49 | 2023-02-19 | 2023 IES JUNIOR CHAMPIONSHIPS venue | |
| 200 Individual Medley | SCY | 2:49.72 | +0.83s to B | 2023-02-18 | 2023 IES JUNIOR CHAMPIONSHIPS venue |
| 50 Freestyle | LCM | 33.35 | BB+1.76s to A | 2026-05-17 | 2026 Chris Engledow Memorial Meet venue |
| 100 Freestyle | LCM | 1:15.24 | B+1.45s to BB | 2026-05-16 | 2026 Chris Engledow Memorial Meet venue |
| 200 Freestyle | LCM | 2:47.09 | B+6.90s to BB | 2026-05-17 | 2026 Chris Engledow Memorial Meet venue |
| 50 Backstroke | LCM | 42.94 | +0.65s to B | 2026-05-16 | 2026 Chris Engledow Memorial Meet venue |
| 100 Backstroke | LCM | 1:44.08 | +15.79s to B | 2022-05-21 | 2022 LCN Fazzari's Open Combined venue |
| 50 Breaststroke | LCM | 47.41 | +0.32s to B | 2026-05-17 | 2026 Chris Engledow Memorial Meet venue |
| 100 Breaststroke | LCM | 1:45.19 | +5.00s to B | 2023-07-21 | 2023 IES LC Championships venue |
| 50 Butterfly | LCM | 37.53 | B+0.54s to BB | 2026-05-16 | 2026 Chris Engledow Memorial Meet venue |
| 100 Butterfly | LCM | 1:46.03 | +20.24s to B | 2022-06-25 | 2022 IE VAN Summer Solstice venue |
| 200 Individual Medley | LCM | 3:36.08 | +21.59s to B | 2022-05-20 | 2022 LCN Fazzari's Open Combined |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 15.
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 | 34.23 | flat | 200 Free Relay | 2021-12-19 | 2021 LCN Reindeer Splash |
| 50 Freestyle | SCY | 29.62 | flying | 200 Medley Relay (leg 4) | 2023-03-04 | 2023 IES Short Course Championships |
| 50 Freestyle | SCY | 27.86 | flying | 200 Free Relay (leg 2) | 2025-11-16 | 2025 WIAA 1A/2A Girls HSState Swim Champ-OB |
| 50 Butterfly | SCY | 31.25 | flying | 200 Medley Relay (leg 3) | 2026-02-28 | 2026 IES Short Course Championships |
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 15-16 · SCY
842 points (2/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 6:33.32 | 447 |
| 200 IM SCY | 2:49.72 | 395 |
| 200 BK SCY | — | 0 |
| 200 BR SCY | — | 0 |
| 200 FL SCY | — | 0 |
| 400 IM SCY | — | 0 |
IMR 15-16 · SCY
1871 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:20.99 | 498 |
| 100 BK SCY | 1:27.82 | 260 |
| 100 BR SCY | 1:29.74 | 371 |
| 100 FL SCY | 1:19.32 | 347 |
| 200 IM SCY | 2:49.72 | 395 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:06.41
Front half 31.71s · back half 34.70s
200 Freestyle SCY 2:20.99
Front half 67.40s · back half 73.59s
500 Freestyle SCY 6:33.32
Front half 190.22s · back half 203.10s
100 Backstroke SCY 1:27.82
Front half 42.97s · back half 44.85s
100 Breaststroke SCY 1:29.74
Front half 42.58s · back half 47.16s
100 Butterfly SCY 1:19.32
Front half 35.31s · back half 44.01s
100 Individual Medley SCY 1:19.49
Front half 36.34s · back half 43.15s
200 Individual Medley SCY 2:49.72
Front half 80.33s · back half 89.39s
200 Freestyle LCM 2:47.09
Front half 60.61s · back half 106.48s
100 Butterfly LCM 1:46.03
Front half 47.21s · back half 58.82s
Progression
Faster times are higher. One card per event, all courses & history.