swimJason Ma
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Backstroke | LCM | 30.32 | AA+0.93s to AAA·+0.13s to Sectionals | 2024-08-01 | 2024 YMCA Long Course Championships fast pool |
| 100 Backstroke | LCM | 1:04.47 | AA+2.58s to AAA·Sectionals ✓+3.88s to Futures | 2024-08-02 | 2024 YMCA Long Course Championships fast pool |
| 200 Backstroke | LCM | 2:19.35 | AA+4.56s to AAA·Sectionals ✓+7.46s to Futures | 2024-07-31 | 2024 YMCA Long Course Championships fast pool |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 17.
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.
IMX / IMR
IMX 17-18 · LCM
755 points (1/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 BK LCM | 2:19.35 | 755 |
| 400 FR LCM | — | 0 |
| 200 BR LCM | — | 0 |
| 200 FL LCM | — | 0 |
| 200 IM LCM | — | 0 |
| 400 IM LCM | — | 0 |
IMR 17-18 · LCM
735 points (1/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK LCM | 1:04.47 | 735 |
| 200 FR LCM | — | 0 |
| 100 BR LCM | — | 0 |
| 100 FL LCM | — | 0 |
| 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 Backstroke LCM 1:04.47 RT 0.50s
Front half 31.28s · back half 33.19s
200 Backstroke LCM 2:19.35
Front half 65.88s · back half 73.47s
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.
Progression
Faster times are higher. One card per event, all courses & history.