swimEthan Kosasih
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 30.76 | B+1.87s to BB·+8.47s to Sectionals | 2025-02-23 | MAC Hosted 2025 Gulf 12 & Under Champsfast pool |
| 100 Freestyle | SCY | 1:03.78 | B+1.09s to BB·+15.49s to Sectionals | 2025-12-12 | 2025 Gulf Senior Championships |
| 200 Freestyle | SCY | 2:26.27 | B+9.08s to BB·+40.48s to Sectionals | 2025-12-12 | 2025 Gulf Senior Championships |
| 500 Freestyle | SCY | 8:27.46 | +108.77s to B·+221.37s to Sectionals | 2024-01-13 | 2024 LSST January Frosty Open Meetvenue |
| 50 Backstroke | SCY | 35.50 | +0.11s to B·+9.81s to Sectionals | 2025-02-22 | MAC Hosted 2025 Gulf 12 & Under Champsfast pool |
| 100 Backstroke | SCY | 1:12.92 | B+3.83s to BB·+17.83s to Sectionals | 2025-12-12 | 2025 Gulf Senior Championships |
| 50 Breaststroke | SCY | 42.33 | +1.84s to B·+12.84s to Sectionals | 2025-02-23 | MAC Hosted 2025 Gulf 12 & Under Champsfast pool |
| 100 Breaststroke | SCY | 1:30.05 | +5.76s to B·+27.36s to Sectionals | 2025-02-22 | MAC Hosted 2025 Gulf 12 & Under Champsfast pool |
| 200 Breaststroke | SCY | 2:58.31 | B+8.42s to BB·+39.02s to Sectionals | 2025-12-12 | 2025 Gulf Senior Championships |
| 50 Butterfly | SCY | 47.83 | +13.14s to B·+23.54s to Sectionals | 2024-07-20 | 2024 LSST GULF B & Under Champsvenue |
| 100 Individual Medley | SCY | 1:22.89 | 2024-12-21 | 2024 Gulf Fall Champs (ESCA & AMBU)venue | |
| 200 Individual Medley | SCY | 2:44.85 | +0.16s to B·+45.46s to Sectionals | 2025-12-12 | 2025 Gulf Senior Championships |
| 50 Freestyle | LCM | 39.11 | +3.42s to B·+13.52s to Sectionals | 2024-05-18 | 2024 Katy/Pace May Open Invitationalvenue |
| 100 Freestyle | LCM | 1:15.01 | B+2.42s to BB·+19.72s to Sectionals | 2025-07-25 | 2025 Gulf Long Course Summer Championships |
| 200 Freestyle | LCM | 2:53.49 | +3.50s to B·+52.60s to Sectionals | 2025-01-01 | Katy Aquatics |
| 400 Freestyle | LCM | 6:08.03 | +8.14s to B·+108.94s to Sectionals | 2025-07-25 | 2025 Gulf Long Course Summer Championships |
| 50 Backstroke | LCM | 44.27 | +3.08s to B·+14.08s to Sectionals | 2025-04-12 | 2025 DADS April Intrasquad |
| 100 Backstroke | LCM | 1:35.68 | +8.29s to B·+31.19s to Sectionals | 2025-04-12 | 2025 DADS April Intrasquad |
| 50 Breaststroke | LCM | 46.84 | +0.95s to B·+12.65s to Sectionals | 2025-04-12 | 2025 DADS April Intrasquad |
| 100 Breaststroke | LCM | 1:39.00 | +1.81s to B·+26.61s to Sectionals | 2025-07-25 | 2025 Gulf Long Course Summer Championships |
| 200 Breaststroke | LCM | 3:35.26 | +1.87s to B·+54.87s to Sectionals | 2025-07-25 | 2025 Gulf Long Course Summer Championships |
| 200 Individual Medley | LCM | 3:11.38 | +0.99s to B·+53.69s to Sectionals | 2025-01-01 | Katy Aquatics |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 13.
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 | 31.43 | flying | 200 Free Relay (leg 4) | 2024-12-21 | 2024 Gulf Fall Champs (ESCA & AMBU) |
| 50 Breaststroke | SCY | 43.89 | flying | 200 Medley Relay (leg 2) | 2024-07-21 | 2024 LSST GULF B & Under Champs |
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 13-14 · LCM
1077 points (3/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 6:08.03 | 357 |
| 200 BR LCM | 3:35.26 | 352 |
| 200 IM LCM | 3:11.38 | 368 |
| 200 BK LCM | — | 0 |
| 200 FL LCM | — | 0 |
| 400 IM LCM | — | 0 |
IMR 13-14 · SCY
1456 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:26.27 | 390 |
| 100 BK SCY | 1:12.92 | 394 |
| 100 BR SCY | 1:30.05 | 301 |
| 200 IM SCY | 2:44.85 | 371 |
| 100 FL SCY | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
500 Freestyle SCY 8:27.46
Front half 248.12s · back half 259.34s
100 Individual Medley SCY 1:22.89
Front half 40.35s · back half 42.54s
400 Freestyle LCM 6:08.03 split/total mismatch
200 Breaststroke LCM 3:35.26 split/total mismatch
Front half 105.30s · back half 109.96s
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.