swimAlvin Ma
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 31.76 | BB+0.57s to A | 2026-03-08 | 2026 ISI 10 and Under Age Group Championship venue |
| 100 Freestyle | SCY | 1:06.81 | AA+2.72s to AAA | 2026-03-07 | 2026 ISI 10 and Under Age Group Championship venue |
| 200 Freestyle | SCY | 2:24.47 | AA+5.38s to AAA | 2026-03-08 | 2026 ISI 10 and Under Age Group Championship venue |
| 500 Freestyle | SCY | 6:23.10 | AA+13.11s to AAA | 2026-03-07 | 2026 ISI 10 and Under Age Group Championship venue |
| 50 Backstroke | SCY | 37.85 | BB+0.06s to A | 2026-02-28 | 2026 Winter ISI Regionals- HSC - copied fast pool |
| 100 Backstroke | SCY | 1:20.40 | BB+0.51s to A | 2026-03-01 | 2026 Winter ISI Regionals- HSC - copied fast pool |
| 50 Butterfly | SCY | 33.74 | AA+1.15s to AAA | 2026-03-07 | 2026 ISI 10 and Under Age Group Championship venue |
| 100 Butterfly | SCY | 1:17.79 | AA+2.90s to AAA | 2026-02-27 | 2026 Winter ISI Regionals- HSC - copied |
| 100 Individual Medley | SCY | 1:18.95 | A+2.46s to AA | 2026-03-01 | 2026 Winter ISI Regionals- HSC - copied fast pool |
| 200 Individual Medley | SCY | 2:51.15 | A+5.26s to AA | 2026-02-28 | 2026 Winter ISI Regionals- HSC - copied fast pool |
| 50 Freestyle | LCM | 34.28 | AA+1.29s to AAA | 2026-01-01 | 1755935 |
| 100 Freestyle | LCM | 1:17.78 | A+0.99s to AA | 2026-01-01 | 1755935 |
| 200 Freestyle | LCM | 2:40.76 | AA+1.57s to AAA | 2026-01-01 | 1755935 |
| 50 Backstroke | LCM | 42.03 | A+0.94s to AA | 2026-01-01 | 1755935 |
| 100 Backstroke | LCM | 1:30.57 | A+2.38s to AA | 2026-01-01 | 1755935 |
| 50 Breaststroke | LCM | 50.82 | BB+2.93s to A | 2026-01-01 | 1755935 |
| 50 Butterfly | LCM | 37.54 | AA+0.95s to AAA | 2026-01-01 | 1755935 |
| 100 Butterfly | LCM | 1:27.81 | AA+2.62s to AAA | 2026-01-01 | 1755935 |
| 200 Individual Medley | LCM | 3:10.19 | A+0.50s to AA | 2026-01-01 | 1755935 |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 10.
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 | 30.39 | flying | 200 Free Relay (leg 2) | 2026-03-07 | 2026 ISI 10 and Under Age Group Championship |
| 50 Backstroke | SCY | 36.84 | flat | 200 Medley Relay | 2026-02-28 | 2026 Winter ISI Regionals- HSC - copied |
| 50 Butterfly | SCY | 34.10 | flying | 200 Medley Relay (leg 3) | 2026-03-08 | 2026 ISI 10 and Under Age Group 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
3014 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:40.76 | 840 |
| 100 BK LCM | 1:30.57 | 688 |
| 100 FL LCM | 1:27.81 | 744 |
| 200 IM LCM | 3:10.19 | 742 |
| 100 BR LCM | — | 0 |
IMR 10 & under · LCM
3478 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 100 FR LCM | 1:17.78 | 722 |
| 50 BK LCM | 42.03 | 681 |
| 50 BR LCM | 50.82 | 544 |
| 50 FL LCM | 37.54 | 789 |
| 200 IM LCM | 3:10.19 | 742 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:06.81
Front half 31.92s · back half 34.89s
200 Freestyle SCY 2:24.47
Front half 70.08s · back half 74.39s
500 Freestyle SCY 6:23.10
Front half 190.69s · back half 192.41s
100 Backstroke SCY 1:20.40
Front half 39.76s · back half 40.64s
100 Individual Medley SCY 1:18.95
Front half 35.87s · back half 43.08s
200 Individual Medley SCY 2:51.15
Front half 81.04s · back half 90.11s
100 Freestyle LCM 1:17.78 split/total mismatch
Front half 36.90s · back half 40.88s
200 Freestyle LCM 2:40.76 split/total mismatch
100 Backstroke LCM 1:30.57 split/total mismatch
Front half 44.59s · back half 45.98s
100 Butterfly LCM 1:27.81 split/total mismatch
Front half 39.99s · back half 47.82s
200 Individual Medley LCM 3:10.19 split/total mismatch
Progression
Faster times are higher. One card per event, all courses & history.