swimSebastian Wassenaar
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 34.30 | B+1.71s to BB·+11.91s to Sectionals | 2026-03-08 | 2026 MR AGUA Last Chance Invitationalvenue |
| 100 Freestyle | SCY | 1:05.99 | BB+0.80s to A·+17.50s to Sectionals | 2025-01-18 | 2025 MR AGUA MLK Invitational |
| 50 Backstroke | SCY | 37.15 | BB+2.26s to A·+13.46s to Futures | 2026-02-01 | 2026 MR LIE Second Chance Invitationalvenue |
| 100 Backstroke | SCY | 1:20.13 | BB+4.54s to A·+25.64s to Sectionals | 2026-03-08 | 2026 MR AGUA Last Chance Invitationalvenue |
| 200 Backstroke | SCY | 3:08.72 | +1.13s to B·+70.13s to Sectionals | 2026-01-17 | 2026 MR AGUA MLK Invitationalvenue |
| 50 Breaststroke | SCY | 40.35 | BB+0.86s to A·+14.06s to Futures | 2026-03-13 | 2026 MR SC Junior Metropolitan Championshipsvenue |
| 100 Breaststroke | SCY | 1:29.91 | BB+4.92s to A·+28.42s to Sectionals | 2025-12-07 | 2025 MR NYS Holiday Classic Trials & Finalsvenue |
| 200 Breaststroke | SCY | 3:19.59 | B+0.70s to BB·+64.60s to Sectionals | 2026-01-18 | 2026 MR AGUA MLK Invitationalvenue |
| 50 Butterfly | SCY | 42.34 | +2.25s to B·+19.45s to Futures | 2026-01-31 | 2026 MR LIE Second Chance Invitationalvenue |
| 100 Butterfly | SCY | 1:42.41 | +11.92s to B·+49.22s to Sectionals | 2026-01-17 | 2026 MR AGUA MLK Invitationalvenue |
| 100 Individual Medley | SCY | 1:21.21 | BB+5.92s to A | 2025-12-07 | 2025 MR NYS Holiday Classic Trials & Finalsvenue |
| 200 Individual Medley | SCY | 2:58.43 | B+0.24s to BB·+59.04s to Sectionals | 2026-03-07 | 2026 MR AGUA Last Chance Invitationalvenue |
| 50 Freestyle | LCM | 39.39 | B+2.30s to BB·+13.90s to Sectionals | 2026-05-23 | 2026 MR AGUA Memorial Day Invitationalfast pool |
| 100 Freestyle | LCM | 1:14.07 | A+1.98s to AA·+18.58s to Sectionals | 2025-05-24 | 2025 MR AGUA Memorial Day Invitational |
| 200 Freestyle | LCM | 3:09.48 | B+13.29s to BB·+68.19s to Sectionals | 2026-05-23 | 2026 MR AGUA Memorial Day Invitationalfast pool |
| 50 Backstroke | LCM | 42.56 | BB+2.27s to A·+14.67s to Futures | 2025-05-24 | 2025 MR AGUA Memorial Day Invitational |
| 200 Backstroke | LCM | 3:12.36 | BB+6.37s to A·+57.57s to Sectionals | 2026-05-24 | 2026 MR AGUA Memorial Day Invitationalfast pool |
| 50 Breaststroke | LCM | 47.21 | BB+2.22s to A·+16.32s to Futures | 2026-05-16 | 2026 MR LIAC Spring Kickoff Invitationalvenue |
| 100 Breaststroke | LCM | 1:32.37 | AA+2.08s to AAA·+22.68s to Sectionals | 2025-05-10 | 2025 MR LIAC Spring Kickoff Invitational |
| 200 Breaststroke | LCM | 3:40.14 | BB+7.85s to A·+67.55s to Sectionals | 2026-05-24 | 2026 MR AGUA Memorial Day Invitationalfast pool |
| 50 Butterfly | LCM | 45.21 | B+3.62s to BB·+18.92s to Futures | 2026-05-16 | 2026 MR LIAC Spring Kickoff Invitationalvenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 11.
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 Breaststroke | SCY | 40.69 | flying | 200 Medley Relay (leg 2) | 2026-03-15 | 2026 MR SC Junior Metropolitan 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 11-12 · SCY
1434 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK SCY | 1:20.13 | 409 |
| 100 BR SCY | 1:29.91 | 428 |
| 100 FL SCY | 1:42.41 | 192 |
| 200 IM SCY | 2:58.43 | 405 |
| 500 FR SCY | — | 0 |
IMR 11-12 · SCY
1586 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 50 BK SCY | 37.15 | 436 |
| 50 BR SCY | 40.35 | 475 |
| 50 FL SCY | 42.34 | 250 |
| 100 IM SCY | 1:21.21 | 425 |
| 200 FR SCY | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Backstroke SCY 1:20.13
Front half 39.58s · back half 40.55s
200 Backstroke SCY 3:08.72
Front half 95.67s · back half 93.05s
100 Breaststroke SCY 1:29.91
Front half 44.31s · back half 45.60s
200 Breaststroke SCY 3:19.59
Front half 99.31s · back half 100.28s
100 Butterfly SCY 1:42.41
Front half 47.71s · back half 54.70s
100 Individual Medley SCY 1:21.21
Front half 39.85s · back half 41.36s
200 Individual Medley SCY 2:58.43
200 Freestyle LCM 3:09.48
Front half 93.10s · back half 96.38s
200 Backstroke LCM 3:12.36
Front half 94.88s · back half 97.48s
200 Breaststroke LCM 3:40.14
Front half 107.01s · back half 113.13s
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.