swimJacob Marshall
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 30.22 | BB+2.13s to A·+7.93s to Sectionals | 2025-09-19 | 2025 ESA IMX/IMReady Invitational Meet |
| 100 Freestyle | SCY | 1:10.28 | B+3.89s to BB·+21.99s to Sectionals | 2024-11-03 | SSAN 2024 Fall Invitevenue |
| 200 Freestyle | SCY | 2:47.33 | +11.34s to B·+61.54s to Sectionals | 2024-02-18 | 2024 Gulf 14 & Under Champs (DADS)slow pool |
| 50 Backstroke | SCY | 43.10 | +4.61s to B·+17.41s to Sectionals | 2024-11-17 | 2024 NOCH Turkey Classicvenue |
| 50 Breaststroke | SCY | 41.11 | B+1.02s to BB·+11.62s to Sectionals | 2025-09-19 | 2025 ESA IMX/IMReady Invitational Meet |
| 100 Breaststroke | SCY | 1:39.61 | +7.02s to B·+36.92s to Sectionals | 2025-10-25 | 2025 ESA Halloween Classic |
| 100 Individual Medley | SCY | 1:28.56 | +6.67s to B | 2024-09-20 | 2024 ESA IMX/IMReady Invitational Meetvenue |
| 50 Freestyle | LCM | 36.21 | B+1.42s to BB·+10.62s to Sectionals | 2024-06-22 | 2024 Aggieland June Long Course Invitationalvenue |
| 100 Freestyle | LCM | 1:23.67 | +1.58s to B·+28.38s to Sectionals | 2024-06-01 | 2024 TWST LC Invitationalvenue |
| 200 Freestyle | LCM | 3:01.06 | +1.87s to B·+60.17s to Sectionals | 2024-06-22 | 2024 Aggieland June Long Course Invitationalvenue |
| 50 Breaststroke | LCM | 54.56 | +4.77s to B·+20.37s to Sectionals | 2024-06-01 | 2024 TWST LC Invitationalvenue |
| 100 Breaststroke | LCM | 1:38.69 | BB+7.40s to A·+26.30s to Sectionals | 2025-01-01 | Central Swim Houston |
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 | 32.71 | flying | 200 Medley Relay (leg 4) | 2024-02-18 | 2024 Gulf 14 & Under Champs (DADS) |
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
512 points (1/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BR LCM | 1:38.69 | 512 |
| 400 FR LCM | — | 0 |
| 100 BK LCM | — | 0 |
| 100 FL LCM | — | 0 |
| 200 IM LCM | — | 0 |
IMR 11-12 · SCY
1397 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:47.33 | 341 |
| 50 BK SCY | 43.10 | 279 |
| 50 BR SCY | 41.11 | 449 |
| 100 IM SCY | 1:28.56 | 328 |
| 50 FL SCY | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:10.28
Front half 33.01s · back half 37.27s
200 Freestyle SCY 2:47.33
Front half 80.83s · back half 86.50s
100 Breaststroke SCY 1:39.61
Front half 45.78s · back half 53.83s
100 Individual Medley SCY 1:28.56
Front half 42.22s · back half 46.34s
200 Freestyle LCM 3:01.06 RT 0.91s
Front half 86.05s · back half 95.01s
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.