swimKai Niu
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 27.62 | 2026-03-01 | 2026 PN February AGI, Div 1-Approved fast pool | |
| 100 Freestyle | SCY | 50.39 | 2025-06-20 | 2025 PN SRST StingRay Invitational | |
| 200 Freestyle | SCY | 2:17.38 | 2025-12-14 | 2025 PN 14&Under Short Course Champs-Approved venue | |
| 500 Freestyle | SCY | 5:04.31 | 2025-12-12 | 2025 PN 14&Under Short Course Champs-Approved | |
| 50 Backstroke | SCY | 34.12 | 2025-11-16 | 2025 PN IST November Invitational venue | |
| 100 Backstroke | SCY | 1:13.02 | 2026-02-08 | 2026 PN IST Feb Winter Invitational-Approved venue | |
| 200 Backstroke | SCY | 2:52.97 | 2025-03-02 | 2025 PN C March Madness venue | |
| 50 Breaststroke | SCY | 31.62 | 2026-03-28 | 2026 PN Spring Showdown, Division 1 - copied | |
| 100 Breaststroke | SCY | 1:10.29 | 2026-03-28 | 2026 PN Spring Showdown, Division 1 - copied | |
| 200 Breaststroke | SCY | 2:18.43 | 2026-02-27 | 2026 PN February AGI, Div 1-Approved | |
| 50 Butterfly | SCY | 29.34 | 2025-12-06 | 2025 PN Fall Divisionals, Division 2 venue | |
| 100 Butterfly | SCY | 1:06.31 | 2025-12-14 | 2025 PN 14&Under Short Course Champs-Approved venue | |
| 100 Individual Medley | SCY | 1:06.02 | 2025-11-24 | 2025 PN November AGI, Div 3 (UPAC) | |
| 200 Individual Medley | SCY | 2:16.38 | 2025-03-29 | 2025 PN Spring Finale, Division 2 | |
| 400 Individual Medley | SCY | 5:28.44 | 2026-01-25 | 2026 PN IST January Invitational- Approved venue | |
| 50 Freestyle | LCM | 31.66 | 2026-05-02 | 2026 PN BC May Flowers - Approved venue | |
| 100 Freestyle | LCM | 1:08.82 | 2026-05-17 | 2026 PN IST Sockeye Springtime Madness App. venue | |
| 50 Backstroke | LCM | 45.18 | 2024-06-22 | 2024 IST June Invtational venue | |
| 100 Backstroke | LCM | 1:24.93 | 2026-05-16 | 2026 PN IST Sockeye Springtime Madness App. venue | |
| 50 Breaststroke | LCM | 37.76 | 2026-05-30 | 2026 IE VS Apple Capital slow pool | |
| 100 Breaststroke | LCM | 1:24.42 | 2026-05-17 | 2026 PN IST Sockeye Springtime Madness App. venue | |
| 200 Breaststroke | LCM | 3:15.33 | 2026-05-02 | 2026 PN BC May Flowers - Approved venue | |
| 50 Butterfly | LCM | 33.88 | 2026-05-17 | 2026 PN IST Sockeye Springtime Madness App. venue | |
| 100 Butterfly | LCM | 1:13.84 | 2025-05-31 | 2025 PN VAST Summer Sprints and Distance Chal |
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 | 31.83 | flying | 200 Free Relay (leg 4) | 2024-09-28 | 2024 PN IST Sockeye Sprints |
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
200 Freestyle SCY 2:17.38 RT 0.76s
Front half 67.16s · back half 70.22s
100 Backstroke SCY 1:13.02 RT 0.68s
Front half 36.60s · back half 36.42s
200 Backstroke SCY 2:52.97
Front half 85.90s · back half 87.07s
200 Breaststroke SCY 2:18.43
100 Butterfly SCY 1:06.31 RT 0.75s
Front half 30.48s · back half 35.83s
400 Individual Medley SCY 5:28.44
Front half 158.47s · back half 169.97s
200 Breaststroke LCM 3:15.33 RT 0.74s
Front half 95.88s · back half 99.45s
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.