swimSebastian Velasco
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 16.89 | 2024-01-12 | 2024 TWST Speedo Winter Classic Invitationalvenue | |
| 50 Freestyle | SCY | 30.18 | BB+0.09s to A·+7.89s to Sectionals | 2026-02-20 | 2026 Gulf 12 & Under Championships |
| 100 Freestyle | SCY | 1:09.37 | BB+4.18s to A·+21.08s to Sectionals | 2025-12-05 | 2025 Gulf Age Group Championships |
| 200 Freestyle | SCY | 2:30.29 | BB+7.50s to A·+44.50s to Sectionals | 2026-01-01 | TWST Speedo Winter Classic P/Ffast pool |
| 25 Backstroke | SCY | 21.05 | 2024-01-12 | 2024 TWST Speedo Winter Classic Invitationalvenue | |
| 50 Backstroke | SCY | 35.36 | BB+0.47s to A·+9.67s to Sectionals | 2026-01-01 | TWST Speedo Winter Classic P/Ffast pool |
| 100 Backstroke | SCY | 1:22.04 | BB+6.45s to A·+26.95s to Sectionals | 2026-02-20 | 2026 Gulf 12 & Under Championships |
| 200 Backstroke | SCY | 2:47.77 | BB+6.98s to A·+45.48s to Sectionals | 2026-02-20 | 2026 Gulf 12 & Under Championships |
| 25 Breaststroke | SCY | 23.63 | 2024-01-12 | 2024 TWST Speedo Winter Classic Invitationalvenue | |
| 50 Breaststroke | SCY | 38.68 | A+0.99s to AA·+9.19s to Sectionals | 2026-02-20 | 2026 Gulf 12 & Under Championships |
| 100 Breaststroke | SCY | 1:25.15 | BB+0.16s to A·+22.46s to Sectionals | 2026-01-01 | TWST Speedo Winter Classic P/Ffast pool |
| 200 Breaststroke | SCY | 2:58.11 | A+2.12s to AA·+38.82s to Sectionals | 2026-02-20 | 2026 Gulf 12 & Under Championships |
| 25 Butterfly | SCY | 19.03 | 2024-01-12 | 2024 TWST Speedo Winter Classic Invitationalvenue | |
| 50 Butterfly | SCY | 36.78 | BB+3.09s to A·+12.49s to Sectionals | 2026-01-01 | TWST Speedo Winter Classic P/Ffast pool |
| 100 Butterfly | SCY | 1:20.92 | BB+5.33s to A·+28.23s to Sectionals | 2025-12-05 | 2025 Gulf Age Group Championships |
| 100 Individual Medley | SCY | 1:14.45 | A+2.36s to AA | 2026-02-20 | 2026 Gulf 12 & Under Championships |
| 200 Individual Medley | SCY | 2:42.98 | A+6.49s to AA·+43.59s to Sectionals | 2026-01-01 | TWST Speedo Winter Classic P/Ffast pool |
| 50 Freestyle | LCM | 34.17 | A+1.38s to AA·+8.58s to Sectionals | 2026-05-15 | 2026 Fleet Summer Classic |
| 100 Freestyle | LCM | 1:32.78 | +4.99s to B·+37.49s to Sectionals | 2024-04-20 | 2024 TWST Spring Splash LC Meetvenue |
| 200 Freestyle | LCM | 3:16.12 | +6.33s to B·+75.23s to Sectionals | 2024-05-31 | 2024 TWST LC Invitationalvenue |
| 400 Freestyle | LCM | 6:19.66 | B+6.57s to BB·+120.57s to Sectionals | 2025-01-01 | Cypress Fairbanks Swim Club |
| 50 Backstroke | LCM | 41.77 | BB+1.48s to A·+11.58s to Sectionals | 2026-04-17 | TWST Spring Splash LC Meet |
| 100 Backstroke | LCM | 1:29.59 | BB+1.40s to A·+25.10s to Sectionals | 2026-05-15 | 2026 Fleet Summer Classic |
| 50 Breaststroke | LCM | 38.39 | AAAA·+4.20s to Sectionals | 2026-06-26 | 2026 Fleet Last Chance Meet |
| 100 Breaststroke | LCM | 1:34.83 | A+0.04s to AA·+22.44s to Sectionals | 2026-06-26 | 2026 Fleet Last Chance Meet |
| 50 Butterfly | LCM | 41.10 | BB+3.11s to A·+13.31s to Sectionals | 2026-04-17 | TWST Spring Splash LC Meet |
| 200 Individual Medley | LCM | 3:12.78 | BB+5.29s to A·+55.09s to Sectionals | 2025-06-06 | 2025 Fleet TWST Schools Out |
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 Freestyle | SCY | 19.18 | flying | 200 Free Relay (leg 2) | 2025-02-22 | MAC Hosted 2025 Gulf 12 & Under Champs |
| 50 Backstroke | SCY | 41.98 | flat | 200 Medley Relay | 2024-10-27 | 2024 TWST Halloween Meet |
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
1964 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 6:19.66 | 426 |
| 100 BK LCM | 1:29.59 | 485 |
| 100 BR LCM | 1:34.83 | 577 |
| 200 IM LCM | 3:12.78 | 476 |
| 100 FL LCM | — | 0 |
IMR 11-12 · LCM
2501 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 3:16.12 | 321 |
| 50 BK LCM | 41.77 | 474 |
| 50 BR LCM | 38.39 | 830 |
| 50 FL LCM | 41.10 | 400 |
| 200 IM LCM | 3:12.78 | 476 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Backstroke SCY 1:22.04 split/total mismatch
Front half 39.72s · back half 42.32s
200 Backstroke SCY 2:47.77 split/total mismatch
100 Breaststroke SCY 1:25.15 split/total mismatch
Front half 40.68s · back half 44.47s
200 Breaststroke SCY 2:58.11 split/total mismatch
100 Individual Medley SCY 1:14.45 split/total mismatch
Front half 36.45s · back half 38.00s
200 Individual Medley SCY 2:42.98 split/total mismatch
400 Freestyle LCM 6:19.66 split/total mismatch
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.