swimNathan Marsh
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 25.11 | BB+0.42s to A·+2.52s to Sectionals | 2026-03-01 | 2026 Winter ISI Regionals- MAVS - copied - covenue |
| 100 Freestyle | SCY | 54.87 | BB+0.58s to A·+5.88s to Sectionals | 2026-02-28 | 2026 Winter ISI Regionals- MAVS - copied - covenue |
| 200 Freestyle | SCY | 2:00.25 | BB+1.66s to A·+12.76s to Sectionals | 2026-03-01 | 2026 Winter ISI Regionals- MAVS - copied - covenue |
| 500 Freestyle | SCY | 5:30.24 | BB+7.65s to A·+37.35s to Sectionals | 2026-02-28 | 2026 Winter ISI Regionals- MAVS - copied - covenue |
| 1000 Freestyle | SCY | 12:08.36 | B+0.67s to BB·+119.87s to Sectionals | 2025-01-01 | 1572906 |
| 100 Backstroke | SCY | 1:01.47 | BB+1.88s to A·+5.38s to Sectionals | 2026-07-19 | 2026 ISI Summer DLTA Regionalslow pool |
| 200 Backstroke | SCY | 2:15.81 | BB+5.72s to A·+14.42s to Sectionals | 2026-02-28 | 2026 Winter ISI Regionals- MAVS - copied - covenue |
| 400 Individual Medley | SCY | 4:55.64 | BB+11.45s to A·+31.65s to Sectionals | 2026-02-27 | 2026 Winter ISI Regionals- MAVS - copied - covenue |
| 50 Freestyle | LCM | 34.22 | +0.93s to B·+8.23s to Sectionals | 2024-05-11 | Blue Devil Swim Club May Maniavenue |
| 100 Freestyle | LCM | 1:03.27 | BB+0.98s to A·+6.68s to Sectionals | 2026-01-01 | LFSC SwimFest, Presented by The Lake Forest Swim Club, 4-5/Ju, S#: WI2024-504S |
| 200 Freestyle | LCM | 2:43.29 | +3.30s to B·+39.80s to Sectionals | 2024-05-11 | Blue Devil Swim Club May Maniavenue |
| 400 Freestyle | LCM | 5:04.67 | BB+12.58s to A·+42.48s to Sectionals | 2026-01-01 | LFSC SwimFest, Presented by The Lake Forest Swim Club, 4-5/Ju, S#: WI2024-504S |
| 100 Backstroke | LCM | 1:10.80 | BB+1.21s to A·+6.41s to Sectionals | 2026-07-26 | 2026 LC Illinois Senior Championshipsvenue |
| 200 Backstroke | LCM | 2:33.10 | BB+2.01s to A·+13.31s to Sectionals | 2026-01-01 | LFSC SwimFest, Presented by The Lake Forest Swim Club, 4-5/Ju, S#: WI2024-504S |
| 100 Butterfly | LCM | 1:16.50 | B+3.61s to BB·+15.01s to Sectionals | 2026-01-01 | LFSC SwimFest, Presented by The Lake Forest Swim Club, 4-5/Ju, S#: WI2024-504S |
| 200 Butterfly | LCM | 3:59.73 | +64.04s to B·+100.24s to Sectionals | 2024-05-11 | Blue Devil Swim Club May Maniavenue |
| 200 Individual Medley | LCM | 3:17.66 | +18.87s to B·+58.27s to Sectionals | 2024-05-12 | Blue Devil Swim Club May Maniavenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 15.
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 | 24.74 | flat | 200 Free Relay | 2026-03-01 | 2026 Winter ISI Regionals- MAVS - copied - co |
| 50 Freestyle | SCY | 24.78 | flying | 200 Free Relay (leg 3) | 2026-07-19 | 2026 ISI Summer DLTA Regional |
| 50 Freestyle | SCY | 24.81 | flying | 200 Medley Relay (leg 4) | 2026-03-13 | 2026 ISI Winter 11-14 Age Group Championships |
| 100 Freestyle | SCY | 55.28 | flying | 400 Medley Relay (leg 4) | 2026-03-14 | 2026 ISI Winter 11-14 Age Group Championships |
| 50 Backstroke | SCY | 29.44 | flat | 200 Medley Relay | 2026-02-28 | 2026 Winter ISI Regionals- MAVS - copied - co |
| 50 Freestyle | LCM | 28.51 | flying | 200 Free Relay (leg 4) | 2026-07-25 | 2026 LC Illinois Senior Championships |
| 100 Freestyle | LCM | 1:02.30 | flying | 400 Free Relay (leg 4) | 2026-07-26 | 2026 LC Illinois Senior Championships |
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 15-16 · SCY
1671 points (3/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:30.24 | 585 |
| 200 BK SCY | 2:15.81 | 541 |
| 400 IM SCY | 4:55.64 | 545 |
| 200 BR SCY | — | 0 |
| 200 FL SCY | — | 0 |
| 200 IM SCY | — | 0 |
IMR 15-16 · LCM
1689 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:43.29 | 372 |
| 100 BK LCM | 1:10.80 | 593 |
| 100 FL LCM | 1:16.50 | 426 |
| 200 IM LCM | 3:17.66 | 298 |
| 100 BR LCM | — | 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 54.87
Front half 26.50s · back half 28.37s
200 Freestyle SCY 2:00.25
Front half 57.95s · back half 62.30s
500 Freestyle SCY 5:30.24
Front half 160.41s · back half 169.83s
1000 Freestyle SCY 12:08.36 split/total mismatch
Front half 66.91s · back half 661.45s
100 Backstroke SCY 1:01.47
Front half 30.17s · back half 31.30s
200 Backstroke SCY 2:15.81
Front half 66.60s · back half 69.21s
400 Individual Medley SCY 4:55.64
Front half 139.17s · back half 156.47s
200 Freestyle LCM 2:43.29
Front half 81.09s · back half 82.20s
100 Backstroke LCM 1:10.80 RT 0.64s
Front half 34.90s · back half 35.90s
200 Butterfly LCM 3:59.73
Front half 112.19s · back half 127.54s
200 Individual Medley LCM 3:17.66
Front half 92.77s · back half 104.89s
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.