swimNina Xu
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 18.95 | 2025-06-21 | 2025 PN SRST StingRay Invitational venue | |
| 50 Freestyle | SCY | 40.16 | +4.77s to B·+14.07s to Sectionals | 2025-12-06 | 2025 PN Fall Divisionals, Division 3 - WAVE fast pool |
| 100 Freestyle | SCY | 1:27.62 | +9.93s to B·+31.13s to Sectionals | 2026-03-07 | 2026 PN C March Madness -Approved venue |
| 50 Backstroke | SCY | 43.82 | +3.23s to B·+17.53s to Futures | 2025-12-06 | 2025 PN Fall Divisionals, Division 3 - WAVE fast pool |
| 100 Backstroke | SCY | 1:40.97 | +10.28s to B·+39.58s to Sectionals | 2025-06-21 | 2025 PN SRST StingRay Invitational venue |
| 50 Breaststroke | SCY | 44.67 | B+2.38s to BB·+14.88s to Futures | 2026-03-07 | 2026 PN C March Madness -Approved venue |
| 100 Breaststroke | SCY | 1:35.23 | B+2.34s to BB·+24.64s to Sectionals | 2026-01-24 | 2026 PN IST January Invitational |
| 50 Butterfly | SCY | 44.33 | +5.44s to B·+18.64s to Futures | 2025-12-06 | 2025 PN Fall Divisionals, Division 3 - WAVE fast pool |
| 100 Individual Medley | SCY | 1:30.80 | +2.11s to B | 2026-01-24 | 2026 PN IST January Invitational- Approved venue |
| 50 Freestyle | LCM | 51.64 | +11.25s to B·+22.05s to Sectionals | 2024-06-23 | 2024 IST June Invtational venue |
| 100 Freestyle | LCM | 1:33.57 | +4.38s to B·+29.18s to Sectionals | 2026-04-26 | 2026 PN SMAC Spring Showers LC Challenge venue |
| 50 Backstroke | LCM | 50.70 | +3.91s to B·+19.81s to Futures | 2025-07-13 | 2025 PN OCA July Jamboree Invitational venue |
| 100 Backstroke | LCM | 1:39.52 | B+2.03s to BB·+28.13s to Sectionals | 2025-07-11 | 2025 PN OCA July Jamboree Invitational |
| 50 Breaststroke | LCM | 1:03.38 | +11.09s to B·+28.59s to Futures | 2024-06-23 | 2024 IST June Invtational venue |
| 100 Breaststroke | LCM | 1:58.19 | +2.30s to B·+37.20s to Sectionals | 2025-07-13 | 2025 PN OCA July Jamboree Invitational venue |
| 50 Butterfly | LCM | 44.36 | +0.77s to B·+14.87s to Futures | 2025-07-11 | 2025 PN OCA July Jamboree Invitational |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 11.
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 | 33.83 | flying | 200 Free Relay (leg 4) | 2025-12-13 | 2025 PN 14&Under Short Course Champs-Approved |
| 50 Backstroke | SCY | 44.78 | flat | 200 Medley Relay | 2025-12-13 | 2025 PN 14&Under Short Course Champs-Approved |
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 · LCM
723 points (2/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK LCM | 1:39.52 | 392 |
| 100 BR LCM | 1:58.19 | 331 |
| 400 FR LCM | — | 0 |
| 100 FL LCM | — | 0 |
| 200 IM LCM | — | 0 |
IMR 11-12 · SCY
1285 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 50 BK SCY | 43.82 | 292 |
| 50 BR SCY | 44.67 | 402 |
| 50 FL SCY | 44.33 | 243 |
| 100 IM SCY | 1:30.80 | 348 |
| 200 FR SCY | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:27.62
Front half 41.51s · back half 46.11s
100 Backstroke SCY 1:40.97
Front half 48.48s · back half 52.49s
100 Breaststroke SCY 1:35.23 split/total mismatch
Front half 45.39s · back half 49.84s
100 Individual Medley SCY 1:30.80
Front half 42.95s · back half 47.85s
100 Breaststroke LCM 1:58.19
Front half 56.77s · back half 61.42s
Progression
Faster times are higher. One card per event, all courses & history.