swimJonathan Ma
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 33.79 | +6.20s to B·+11.40s to Sectionals | 2012-02-17 | CT 2012 GRYM Marlins Qualfiervenue |
| 100 Backstroke | SCY | 2:09.53 | +63.94s to B·+75.04s to Sectionals | 2011-11-11 | CT 2011 Marlins November SC Qualifiervenue |
| 50 Breaststroke | SCY | 52.08 | +16.49s to B·+25.79s to Futures | 2012-02-17 | CT 2012 GRYM Marlins Qualfiervenue |
| 50 Butterfly | SCY | 35.61 | +4.72s to B·+12.72s to Futures | 2012-02-17 | CT 2012 GRYM Marlins Qualfiervenue |
| 100 Butterfly | SCY | 1:22.37 | +16.78s to B·+29.18s to Sectionals | 2012-02-17 | CT 2012 GRYM Marlins Qualfiervenue |
| 100 Individual Medley | SCY | 3:10.05 | 2011-11-11 | CT 2011 Marlins November SC Qualifiervenue | |
| 200 Backstroke | LCM | 2:18.48 | AA+4.69s to AAA·+3.69s to Sectionals | 2019-08-04 | 2019 Futures Championships (Geneva, Ohio)venue |
| 100 Butterfly | LCM | 56.72 | AAA+0.43s to AAAA·Futures ✓+0.23s to Winter JNs | 2019-08-02 | 2019 Futures Championships (Geneva, Ohio)venue |
| 200 Butterfly | LCM | 2:14.19 | AA+2.30s to AAA·Sectionals ✓+4.00s to Futures | 2019-08-03 | 2019 Futures Championships (Geneva, Ohio)venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 18.
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.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 100 Freestyle | LCM | 55.61 | flying | 400 Free Relay (leg 2) | 2019-08-02 | 2019 Futures Championships (Geneva, Ohio) |
| 200 Freestyle | LCM | 1:59.67 | flying | 800 Free Relay (leg 3) | 2019-08-01 | 2019 Futures Championships (Geneva, Ohio) |
| 100 Butterfly | LCM | 56.63 | flying | 400 Medley Relay (leg 3) | 2019-08-04 | 2019 Futures Championships (Geneva, Ohio) |
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 17-18 · LCM
1582 points (2/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 BK LCM | 2:18.48 | 769 |
| 200 FL LCM | 2:14.19 | 813 |
| 400 FR LCM | — | 0 |
| 200 BR LCM | — | 0 |
| 200 IM LCM | — | 0 |
| 400 IM LCM | — | 0 |
IMR 17-18 · LCM
961 points (1/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 FL LCM | 56.72 | 961 |
| 200 FR LCM | — | 0 |
| 100 BK LCM | — | 0 |
| 100 BR 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
50 Freestyle SCY 33.79 split/total mismatch
Front half 33.39s · back half 0.40s
100 Backstroke SCY 2:09.53
100 Butterfly SCY 1:22.37
200 Backstroke LCM 2:18.48
Front half 66.44s · back half 72.04s
100 Butterfly LCM 56.72
Front half 26.41s · back half 30.31s
200 Butterfly LCM 2:14.19
Front half 63.02s · back half 71.17s
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.