swimStephen Mah
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 28.49 | BB+0.40s to A·+5.30s to Sectionals | 2025-02-22 | 2025 CA BUENA Coastal Championshipslow pool |
| 100 Freestyle | SCY | 58.90 | A+0.11s to AA·+7.91s to Sectionals | 2025-03-16 | 2025 SCS Spring Age Group Champs @ Armadavenue |
| 200 Freestyle | SCY | 2:10.44 | A+2.25s to AA·+18.65s to Sectionals | 2025-02-22 | 2025 CA BUENA Coastal Championshipslow pool |
| 500 Freestyle | SCY | 5:42.39 | AA+12.40s to AAA·+39.70s to Sectionals | 2025-02-23 | 2025 CA BUENA Coastal Championshipslow pool |
| 50 Backstroke | SCY | 30.56 | AA+0.87s to AAA·+6.87s to Futures | 2025-03-14 | 2025 SCS Spring Age Group Champs @ Armadavenue |
| 50 Butterfly | SCY | 29.61 | AA+1.42s to AAA·+6.72s to Futures | 2025-03-16 | 2025 SCS Spring Age Group Champs @ Armadavenue |
| 50 Freestyle | LCM | 30.00 | AA+0.61s to AAA·+3.01s to Sectionals | 2025-07-18 | 2025 SCS 14-Under Elite A/G Champs at MVNvenue |
| 100 Freestyle | LCM | 1:05.28 | AA+0.79s to AAA·+6.29s to Sectionals | 2025-05-25 | Canyons 15th Annual Red, White and Blue Memvenue |
| 200 Freestyle | LCM | 2:20.17 | AAA+5.78s to AAAA·+11.48s to Sectionals | 2025-07-25 | 2025 CA SCS Summer A/G Champs CANYvenue |
| 400 Freestyle | LCM | 5:02.44 | AA+2.95s to AAA·+28.05s to Sectionals | 2025-07-18 | 2025 SCS 14-Under Elite A/G Champs at MVNvenue |
| 50 Backstroke | LCM | 32.90 | AAA+0.21s to AAAA·+5.01s to Futures | 2025-05-25 | Canyons 15th Annual Red, White and Blue Memvenue |
| 100 Backstroke | LCM | 1:11.54 | AAA+1.15s to AAAA·+6.35s to Sectionals | 2025-07-24 | 2025 CA SCS Summer A/G Champs CANYvenue |
| 50 Breaststroke | LCM | 39.42 | AA+1.33s to AAA·+8.53s to Futures | 2025-05-24 | Canyons 15th Annual Red, White and Blue Memvenue |
| 100 Breaststroke | LCM | 1:30.12 | A+2.93s to AA·+16.42s to Sectionals | 2025-05-25 | Canyons 15th Annual Red, White and Blue Memvenue |
| 50 Butterfly | LCM | 31.29 | AAA+1.00s to AAAA·+5.00s to Futures | 2025-07-26 | 2025 CA SCS Summer A/G Champs CANYvenue |
| 100 Butterfly | LCM | 1:13.61 | AA+1.92s to AAA·+10.52s to Sectionals | 2025-07-18 | 2025 SCS 14-Under Elite A/G Champs at MVNvenue |
| 200 Individual Medley | LCM | 2:39.51 | AA+0.72s to AAA·+14.82s to Sectionals | 2025-07-26 | 2025 CA SCS Summer A/G Champs CANYvenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 12.
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 | 27.30 | flying | 200 Free Relay (leg 3) | 2025-03-16 | 2025 SCS Spring Age Group Champs @ Armada |
| 100 Freestyle | SCY | 59.75 | flat | 400 Free Relay | 2025-03-14 | 2025 SCS Spring Age Group Champs @ Armada |
| 50 Backstroke | SCY | 40.34 | flat | 200 Medley Relay | 2025-03-16 | 2025 SCS Spring Age Group Champs @ Armada |
| 50 Butterfly | SCY | 28.92 | flying | 200 Medley Relay (leg 3) | 2025-02-23 | 2025 CA BUENA Coastal Championship |
| 50 Freestyle | LCM | 29.71 | flat | 200 Free Relay | 2025-06-14 | 2025 CA SCS RAA June Age Group Championships |
| 50 Freestyle | LCM | 32.09 | flying | 200 Free Relay (leg 3) | 2024-07-26 | 2024 CA SCS/ BREA Summer A/G Champs |
| 100 Freestyle | LCM | 1:04.88 | flat | 400 Free Relay | 2025-07-27 | 2025 CA SCS Summer A/G Champs CANY |
| 100 Freestyle | LCM | 1:11.22 | flying | 400 Medley Relay (leg 4) | 2024-07-27 | 2024 CA SCS/ BREA Summer A/G Champs |
| 50 Backstroke | LCM | 33.49 | flat | 200 Medley Relay | 2025-06-13 | 2025 CA SCS RAA June Age Group Championships |
| 100 Backstroke | LCM | 1:13.75 | flat | 400 Medley Relay | 2025-07-26 | 2025 CA SCS Summer A/G Champs CANY |
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
4091 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 5:02.44 | 844 |
| 100 BK LCM | 1:11.54 | 952 |
| 100 BR LCM | 1:30.12 | 673 |
| 100 FL LCM | 1:13.61 | 781 |
| 200 IM LCM | 2:39.51 | 841 |
IMR 11-12 · LCM
4367 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:20.17 | 881 |
| 50 BK LCM | 32.90 | 971 |
| 50 BR LCM | 39.42 | 767 |
| 50 FL LCM | 31.29 | 907 |
| 200 IM LCM | 2:39.51 | 841 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 58.90
Front half 28.21s · back half 30.69s
200 Freestyle SCY 2:10.44
Front half 62.64s · back half 67.80s
500 Freestyle SCY 5:42.39
Front half 168.32s · back half 174.07s
100 Freestyle LCM 1:05.28
Front half 31.53s · back half 33.75s
200 Freestyle LCM 2:20.17
Front half 68.55s · back half 71.62s
400 Freestyle LCM 5:02.44
Front half 148.61s · back half 153.83s
100 Breaststroke LCM 1:30.12
Front half 42.02s · back half 48.10s
100 Butterfly LCM 1:13.61
Front half 33.20s · back half 40.41s
200 Individual Medley LCM 2:39.51
Front half 72.96s · back half 86.55s
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.