swimSebastian Lozada-Certuche
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 23.87 | A+0.18s to AA | 2026-01-25 | 2026 TCA Winter Open venue |
| 100 Freestyle | SCY | 52.93 | A+0.94s to AA | 2026-01-24 | 2026 TCA Winter Open venue |
| 200 Freestyle | SCY | 1:58.57 | A+4.98s to AA | 2026-06-26 | 2026 Summer Area 6 Champs venue |
| 500 Freestyle | SCY | 5:36.25 | BB+13.66s to A | 2026-02-28 | Spring Area 6 Championships 2026 venue |
| 50 Backstroke | SCY | 28.96 | BB+0.97s to A | 2026-01-25 | 2026 TCA Winter Open venue |
| 100 Backstroke | SCY | 1:02.68 | BB+3.09s to A | 2026-01-24 | 2026 TCA Winter Open venue |
| 200 Backstroke | SCY | 2:23.52 | B+2.53s to BB | 2026-02-28 | Spring Area 6 Championships 2026 venue |
| 50 Breaststroke | SCY | 37.09 | B+2.30s to BB | 2025-02-07 | 2025 Stanton C. Craigie Memorial Invitational venue |
| 100 Breaststroke | SCY | 1:22.40 | +3.81s to B | 2025-09-06 | Hydro Fall Classic 2025 venue |
| 50 Butterfly | SCY | 26.97 | A+0.38s to AA | 2026-02-06 | 2026 Stanton C. Craigie Memorial Invite fast pool |
| 100 Butterfly | SCY | 1:01.64 | BB+2.75s to A | 2026-01-25 | 2026 TCA Winter Open venue |
| 100 Individual Medley | SCY | 1:04.03 | 2026-02-07 | 2026 Stanton C. Craigie Memorial Invite fast pool | |
| 200 Individual Medley | SCY | 2:22.40 | BB+10.21s to A | 2025-09-06 | Hydro Fall Classic 2025 venue |
| 50 Freestyle | LCM | 27.52 | A+0.13s to AA | 2025-07-13 | 2025 FL Summer Age Group Championships venue |
| 100 Freestyle | LCM | 1:00.42 | A+0.73s to AA | 2026-05-24 | 2026 Dr. Aspi Doctor Memorial Swim Invite venue |
| 200 Freestyle | LCM | 2:23.53 | BB+6.34s to A | 2026-05-23 | 2026 Dr. Aspi Doctor Memorial Swim Invite venue |
| 400 Freestyle | LCM | 5:16.60 | B+0.21s to BB | 2026-05-02 | TCSC Go For The Gold Invitational venue |
| 1500 Freestyle | LCM | 22:10.97 | B+69.18s to BB | 2025-06-08 | 2025 TCA Aaron Vaughn Memorial venue |
| 50 Backstroke | LCM | 33.94 | BB+0.75s to A | 2026-05-22 | 2026 Dr. Aspi Doctor Memorial Swim Invite venue |
| 100 Backstroke | LCM | 1:12.58 | BB+2.99s to A | 2026-05-02 | TCSC Go For The Gold Invitational venue |
| 200 Backstroke | LCM | 2:48.64 | B+4.95s to BB | 2026-05-03 | TCSC Go For The Gold Invitational venue |
| 50 Breaststroke | LCM | 49.89 | +7.30s to B | 2024-05-05 | TCSC Go For The Gold Invitational venue |
| 100 Breaststroke | LCM | 1:52.16 | +20.77s to B | 2024-06-01 | Hydro4 Summer Open slow pool |
| 50 Butterfly | LCM | 30.25 | A+0.26s to AA | 2026-05-02 | TCSC Go For The Gold Invitational venue |
| 100 Butterfly | LCM | 1:14.25 | B+1.36s to BB | 2026-05-24 | 2026 Dr. Aspi Doctor Memorial Swim Invite venue |
| 200 Individual Medley | LCM | 3:10.19 | +11.40s to B | 2024-05-05 | TCSC Go For The Gold Invitational venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 15.
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 | 23.87 | flat | 200 Free Relay | 2026-02-08 | 2026 Stanton C. Craigie Memorial Invite |
| 50 Freestyle | SCY | 23.96 | flying | 200 Medley Relay (leg 4) | 2026-03-01 | Spring Area 6 Championships 2026 |
| 50 Freestyle | SCY | 23.32 | flying | 200 Free Relay (leg 4) | 2025-06-28 | 2025 Area 6 Summer Championship |
| 50 Butterfly | SCY | 28.06 | flying | 200 Medley Relay (leg 3) | 2025-03-02 | Area 6 Spring Championships |
| 50 Freestyle | LCM | 28.26 | flat | 200 Free Relay | 2025-06-07 | 2025 TCA Aaron Vaughn Memorial |
| 50 Freestyle | LCM | 26.08 | flying | 200 Free Relay (leg 4) | 2025-07-11 | 2025 FL Summer Age Group Championships |
| 50 Freestyle | LCM | 26.86 | flying | 200 Medley Relay (leg 4) | 2025-07-10 | 2025 FL Summer Age Group 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
1514 points (3/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:36.25 | 554 |
| 200 BK SCY | 2:23.52 | 458 |
| 200 IM SCY | 2:22.40 | 502 |
| 200 BR SCY | — | 0 |
| 200 FL SCY | — | 0 |
| 400 IM SCY | — | 0 |
IMR 15-16 · SCY
2555 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:58.57 | 636 |
| 100 BK SCY | 1:02.68 | 528 |
| 100 BR SCY | 1:22.40 | 343 |
| 100 FL SCY | 1:01.64 | 546 |
| 200 IM SCY | 2:22.40 | 502 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 52.93
Front half 25.19s · back half 27.74s
200 Freestyle SCY 1:58.57
Front half 55.91s · back half 62.66s
500 Freestyle SCY 5:36.25
Front half 165.75s · back half 170.50s
100 Backstroke SCY 1:02.68
Front half 30.46s · back half 32.22s
200 Backstroke SCY 2:23.52
Front half 70.57s · back half 72.95s
100 Breaststroke SCY 1:22.40
Front half 38.31s · back half 44.09s
100 Butterfly SCY 1:01.64
Front half 27.83s · back half 33.81s
100 Individual Medley SCY 1:04.03
Front half 27.55s · back half 36.48s
200 Individual Medley SCY 2:22.40
Front half 63.23s · back half 79.17s
100 Freestyle LCM 1:00.42
Front half 27.67s · back half 32.75s
200 Freestyle LCM 2:23.53
Front half 67.99s · back half 75.54s
400 Freestyle LCM 5:16.60
Front half 156.07s · back half 160.53s
1500 Freestyle LCM 22:10.97
100 Breaststroke LCM 1:52.16
Front half 50.55s · back half 61.61s
100 Butterfly LCM 1:14.25
Front half 33.17s · back half 41.08s
200 Individual Medley LCM 3:10.19
Front half 88.76s · back half 101.43s
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.
Progression
Faster times are higher. One card per event, all courses & history.