swimNathan Ma
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 37.56 | B+2.77s to BB·+14.37s to Sectionals | 2025-02-22 | 2025 Pacific Committee SC Championshipvenue |
| 100 Freestyle | SCY | 1:25.22 | B+5.93s to BB·+34.23s to Sectionals | 2025-02-02 | 2025 CA TORR Polar Plungevenue |
| 50 Backstroke | SCY | 47.07 | B+3.98s to BB·+23.38s to Futures | 2024-09-29 | 2024 CA LKWD September Closed Inviteslow pool |
| 100 Backstroke | SCY | 1:48.18 | +7.09s to B·+52.69s to Sectionals | 2024-09-28 | 2024 CA LKWD September Closed Inviteslow pool |
| 50 Breaststroke | SCY | 52.25 | B+4.46s to BB·+25.96s to Futures | 2025-02-02 | 2025 CA TORR Polar Plungevenue |
| 50 Butterfly | SCY | 47.41 | +0.92s to B·+24.52s to Futures | 2025-02-01 | 2025 CA TORR Polar Plungevenue |
| 100 Individual Medley | SCY | 1:37.83 | B+8.04s to BB | 2025-02-01 | 2025 CA TORR Polar Plungevenue |
| 50 Freestyle | LCM | 38.74 | BB+3.05s to A·+11.75s to Sectionals | 2025-06-28 | 2025 CA SBSC Semana Nautica LCM Meetvenue |
| 100 Freestyle | LCM | 1:27.73 | BB+7.54s to A·+28.74s to Sectionals | 2025-06-29 | 2025 CA SBSC Semana Nautica LCM Meetvenue |
| 200 Freestyle | LCM | 3:08.61 | BB+14.92s to A·+59.92s to Sectionals | 2025-06-29 | 2025 CA SBSC Semana Nautica LCM Meetvenue |
| 50 Backstroke | LCM | 47.87 | BB+4.78s to A·+19.98s to Futures | 2025-06-29 | 2025 CA SBSC Semana Nautica LCM Meetvenue |
| 100 Backstroke | LCM | 1:47.69 | B+3.20s to BB·+42.50s to Sectionals | 2025-06-28 | 2025 CA SBSC Semana Nautica LCM Meetvenue |
| 50 Breaststroke | LCM | 53.78 | BB+5.89s to A·+22.89s to Futures | 2025-05-04 | 2025 CA TORR Spring Splashvenue |
| 100 Breaststroke | LCM | 1:55.30 | BB+9.71s to A·+41.60s to Sectionals | 2025-06-29 | 2025 CA SBSC Semana Nautica LCM Meetvenue |
| 50 Butterfly | LCM | 51.00 | B+4.61s to BB·+24.71s to Futures | 2025-05-03 | 2025 CA TORR Spring Splashvenue |
| 100 Butterfly | LCM | 1:59.11 | B+6.22s to BB·+56.02s to Sectionals | 2025-06-28 | 2025 CA SBSC Semana Nautica LCM Meetvenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 10.
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 | 38.98 | flying | 200 Free Relay (leg 3) | 2025-02-23 | 2025 Pacific Committee SC Championship |
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 10 & under · LCM
1729 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 3:08.61 | 520 |
| 100 BK LCM | 1:47.69 | 409 |
| 100 BR LCM | 1:55.30 | 502 |
| 100 FL LCM | 1:59.11 | 298 |
| 200 IM LCM | — | 0 |
IMR 10 & under · LCM
1737 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 FR LCM | 1:27.73 | 503 |
| 50 BK LCM | 47.87 | 461 |
| 50 BR LCM | 53.78 | 459 |
| 50 FL LCM | 51.00 | 314 |
| 200 IM LCM | — | 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 1:25.22
Front half 41.94s · back half 43.28s
100 Backstroke SCY 1:48.18
Front half 52.74s · back half 55.44s
100 Individual Medley SCY 1:37.83
Front half 50.16s · back half 47.67s
100 Freestyle LCM 1:27.73
Front half 43.14s · back half 44.59s
200 Freestyle LCM 3:08.61
100 Backstroke LCM 1:47.69
Front half 52.58s · back half 55.11s
100 Breaststroke LCM 1:55.30
Front half 56.63s · back half 58.67s
100 Butterfly LCM 1:59.11
Front half 56.02s · back half 63.09s
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.