swimKai Niu
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 27.62 | B+0.83s to BB·+4.43s to Sectionals | 2026-03-01 | 2026 PN February AGI, Div 1-Approvedvenue |
| 100 Freestyle | SCY | 59.25 | B+0.46s to BB·+8.26s to Sectionals | 2026-03-07 | 2026 BBST Seize the Day Invitationalvenue |
| 200 Freestyle | SCY | 2:17.38 | B+8.99s to BB·+25.59s to Sectionals | 2025-12-14 | 2025 PN 14&Under Short Course Champs-Approvedvenue |
| 500 Freestyle | SCY | 5:04.31 | AA+8.62s to AAA·+1.62s to Sectionals | 2025-12-15 | 1663581 |
| 50 Backstroke | SCY | 33.49 | +0.80s to B·+9.80s to Futures | 2026-09-26 | 2026 PN IST Sockeye Sprints- Approvedvenue |
| 100 Backstroke | SCY | 1:13.02 | +3.53s to B·+17.53s to Sectionals | 2026-02-08 | 2026 PN IST Feb Winter Invitational-Approvedvenue |
| 200 Backstroke | SCY | 2:52.97 | +21.18s to B·+51.68s to Sectionals | 2025-03-02 | 2025 PN C March Madnessvenue |
| 25 Breaststroke | SCY | 16.20 | 2026-09-27 | 2026 PN IST Sockeye Sprints- Approvedvenue | |
| 50 Breaststroke | SCY | 31.62 | A+0.83s to AA·+5.33s to Futures | 2026-03-28 | 2026 PN Spring Showdown, Division 1 - copied |
| 100 Breaststroke | SCY | 1:10.29 | BB+2.90s to A·+7.10s to Sectionals | 2026-03-29 | 2026 PN Spring Showdown, Div.1 Approvedvenue |
| 200 Breaststroke | SCY | 2:34.52 | BB+7.53s to A·+17.23s to Sectionals | 2026-03-08 | 2026 BBST Seize the Day Invitationalvenue |
| 25 Butterfly | SCY | 15.34 | 2026-09-26 | 2026 PN IST Sockeye Sprints- Approvedvenue | |
| 50 Butterfly | SCY | 29.34 | BB+1.55s to A·+6.45s to Futures | 2025-12-06 | 2025 PN Fall Divisionals, Division 2venue |
| 100 Butterfly | SCY | 1:06.31 | B+2.52s to BB·+11.12s to Sectionals | 2025-12-14 | 2025 PN 14&Under Short Course Champs-Approvedvenue |
| 100 Individual Medley | SCY | 1:06.02 | 2025-11-24 | 1663578 | |
| 200 Individual Medley | SCY | 2:37.16 | +2.97s to B·+33.17s to Sectionals | 2025-10-18 | 2025 PN IST Fall Open |
| 400 Individual Medley | SCY | 5:28.44 | B+20.55s to BB·+63.75s to Sectionals | 2026-01-25 | 2026 PN IST January Invitational- Approvedvenue |
| 50 Freestyle | LCM | 31.66 | B+0.67s to BB·+4.67s to Sectionals | 2026-05-02 | 2026 PN BC May Flowers - Approvedvenue |
| 100 Freestyle | LCM | 1:08.82 | B+1.33s to BB·+9.83s to Sectionals | 2026-05-17 | 2026 PN IST Sockeye Springtime Madness App.venue |
| 50 Backstroke | LCM | 45.18 | +6.49s to B·+17.29s to Futures | 2024-06-22 | 2024 IST June Invtationalvenue |
| 100 Backstroke | LCM | 1:24.93 | +3.74s to B·+19.74s to Sectionals | 2026-05-16 | 2026 PN IST Sockeye Springtime Madness App.venue |
| 50 Breaststroke | LCM | 37.76 | BB+1.27s to A·+6.87s to Futures | 2026-05-30 | 2026 IE VS Apple Capitalslow pool |
| 100 Breaststroke | LCM | 1:24.42 | BB+6.03s to A·+10.72s to Sectionals | 2026-05-17 | 2026 PN IST Sockeye Springtime Madness App.venue |
| 200 Breaststroke | LCM | 3:15.33 | B+9.64s to BB·+34.45s to Sectionals | 2026-05-02 | 2026 PN BC May Flowers - Approvedvenue |
| 50 Butterfly | LCM | 33.88 | BB+2.59s to A·+7.59s to Futures | 2026-05-17 | 2026 PN IST Sockeye Springtime Madness App.venue |
| 100 Butterfly | LCM | 1:19.29 | +0.70s to B·+16.20s to Sectionals | 2026-05-16 | 2026 PN IST Sockeye Springtime Madness App.venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 15.
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.
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 | 29.18 | flat | 200 Free Relay | 2025-09-27 | 2025 PN IST Sockeye Sprints |
| 50 Freestyle | SCY | 31.83 | flying | 200 Free Relay (leg 4) | 2024-09-28 | 2024 PN IST Sockeye Sprints |
| 50 Butterfly | SCY | 32.49 | flying | 200 Medley Relay (leg 3) | 2025-09-28 | 2025 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.
IMX / IMR
IMX 15-16 · SCY
2313 points (5/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:04.31 | 748 |
| 200 BK SCY | 2:52.97 | 262 |
| 200 BR SCY | 2:34.52 | 533 |
| 200 IM SCY | 2:37.16 | 373 |
| 400 IM SCY | 5:28.44 | 397 |
| 200 FL SCY | — | 0 |
IMR 15-16 · SCY
2106 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:17.38 | 409 |
| 100 BK SCY | 1:13.02 | 334 |
| 100 BR SCY | 1:10.29 | 552 |
| 100 FL SCY | 1:06.31 | 438 |
| 200 IM SCY | 2:37.16 | 373 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 59.25
Front half 28.62s · back half 30.63s
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
100 Breaststroke SCY 1:10.29
Front half 32.84s · back half 37.45s
200 Breaststroke SCY 2:34.52
Front half 73.46s · back half 81.06s
100 Butterfly SCY 1:06.31 RT 0.75s
Front half 30.48s · back half 35.83s
200 Individual Medley SCY 2:37.16 split/total mismatch
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.
Swim history
Every recorded swim, newest first
| Date | Event | Course | Time | Age | Round | Meet |
|---|
Individual swims with a recorded date and time — including disqualifications — plus reconstructed relay legs (marked). Assembled in the browser from this page’s data.
Progression
Faster times are higher. One card per event, all courses & history.