swimMason Nguyen
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 29.44 | A+0.65s to AA | 2026-06-28 | 2026 Metro Committee Summer Festival venue |
| 100 Freestyle | SCY | 1:09.64 | BB+4.45s to A | 2025-12-14 | 2025 CA SCS/RAA WAG venue |
| 200 Freestyle | SCY | 2:34.91 | B+0.22s to BB | 2025-11-08 | 2025 CA Downey Dolphins SC Swim Meet venue |
| 50 Backstroke | SCY | 35.98 | BB+1.09s to A | 2026-06-28 | 2026 Metro Committee Summer Festival venue |
| 100 Backstroke | SCY | 1:28.37 | B+5.68s to BB | 2025-11-08 | 2025 CA Downey Dolphins SC Swim Meet venue |
| 50 Breaststroke | SCY | 40.72 | BB+1.23s to A | 2026-06-28 | 2026 Metro Committee Summer Festival venue |
| 100 Breaststroke | SCY | 1:37.59 | B+5.00s to BB | 2025-09-14 | 2025 DARE Launch & Lunge Season Opener venue |
| 50 Butterfly | SCY | 34.03 | BB+0.34s to A | 2026-06-28 | 2026 Metro Committee Summer Festival venue |
| 100 Butterfly | SCY | 1:27.17 | B+4.18s to BB | 2026-02-15 | 2026 Metro Champs @ La Mirada Armada venue |
| 100 Individual Medley | SCY | 1:16.41 | BB+1.12s to A | 2026-06-28 | 2026 Metro Committee Summer Festival venue |
| 200 Individual Medley | SCY | 2:56.16 | BB+12.47s to A | 2025-11-09 | 2025 CA Downey Dolphins SC Swim Meet venue |
| 50 Freestyle | LCM | 35.04 | BB+0.85s to A | 2025-07-27 | 2025 CA SCS/RAA Summer A/G Champs venue |
| 100 Freestyle | LCM | 1:15.28 | A+3.19s to AA | 2026-05-03 | 26 ESA Dolphins Swim Team venue |
| 200 Freestyle | LCM | 2:59.79 | B+3.60s to BB | 2025-05-03 | 2025 CA Downey Dolphins Swim Team LC Meet slow pool |
| 50 Backstroke | LCM | 42.30 | BB+2.01s to A | 2025-07-27 | 2025 CA SCS/RAA Summer A/G Champs venue |
| 100 Backstroke | LCM | 1:39.85 | B+3.36s to BB | 2025-06-01 | 2025 CA Downey Dolphins Swim Team LC Meet slow pool |
| 50 Breaststroke | LCM | 50.50 | B+1.31s to BB | 2026-05-03 | 26 ESA Dolphins Swim Team venue |
| 50 Butterfly | LCM | 41.58 | BB+3.59s to A | 2025-07-26 | 2025 CA SCS/RAA Summer A/G Champs venue |
| 100 Butterfly | LCM | 1:42.14 | B+7.15s to BB | 2025-07-25 | 2025 CA SCS/RAA Summer A/G Champs venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 11.
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 | 31.23 | flat | 200 Free Relay | 2025-12-13 | 2025 CA SCS/RAA WAG |
| 50 Freestyle | SCY | 29.42 | flying | 200 Free Relay (leg 4) | 2026-06-28 | 2026 Metro Committee Summer Festival |
| 50 Backstroke | SCY | 37.12 | flat | 200 Medley Relay | 2025-12-14 | 2025 CA SCS/RAA WAG |
| 50 Butterfly | SCY | 36.46 | flying | 200 Medley Relay (leg 3) | 2026-02-15 | 2026 Metro Champs @ La Mirada Armada |
| 50 Freestyle | LCM | 31.65 | flat | 200 Free Relay | 2026-06-13 | ARMADA-2026 SCS June AG Invite |
| 50 Freestyle | LCM | 28.41 | flying | 200 Free Relay (leg 2) | 2025-07-25 | 2025 CA SCS/RAA Summer A/G Champs |
| 50 Backstroke | LCM | 52.10 | flat | 200 Medley Relay | 2025-07-25 | 2025 CA SCS/RAA Summer A/G Champs |
| 50 Butterfly | LCM | 41.93 | flying | 200 Medley Relay (leg 3) | 2025-06-13 | 2025 SCS June AG Invite @ La Mirada Armada |
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 · SCY
1372 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK SCY | 1:28.37 | 305 |
| 100 BR SCY | 1:37.59 | 335 |
| 100 FL SCY | 1:27.17 | 311 |
| 200 IM SCY | 2:56.16 | 421 |
| 500 FR SCY | — | 0 |
IMR 11-12 · SCY
2365 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:34.91 | 430 |
| 50 BK SCY | 35.98 | 480 |
| 50 BR SCY | 40.72 | 462 |
| 50 FL SCY | 34.03 | 482 |
| 100 IM SCY | 1:16.41 | 511 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:09.64
Front half 33.87s · back half 35.77s
100 Breaststroke SCY 1:37.59
Front half 48.49s · back half 49.10s
100 Butterfly SCY 1:27.17
Front half 40.35s · back half 46.82s
100 Individual Medley SCY 1:16.41
Front half 36.04s · back half 40.37s
100 Butterfly LCM 1:42.14
Front half 45.72s · back half 56.42s
Progression
Faster times are higher. One card per event, all courses & history.