Alex O'Sullivan
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 24.78 | AAA+0.79s to AAAA | 2026-03-29 | 2026 Four Corner Speedo Sectionals - Carmel - fast pool |
| 100 Freestyle | SCY | 52.97 | AAA+0.98s to AAAA | 2026-03-26 | 2026 Four Corner Speedo Sectionals - Carmel - fast pool |
| 200 Freestyle | SCY | 1:59.91 | AA+2.52s to AAA | 2026-03-27 | 2026 Four Corner Speedo Sectionals - Carmel - fast pool |
| 500 Freestyle | SCY | 5:49.63 | BB+4.54s to A | 2024-11-16 | 2024 NE SAC Turkey Splash venue |
| 50 Backstroke | SCY | 32.75 | BB+2.46s to A | 2025-10-05 | 2025 NE CS Fall Sprints - copied venue |
| 100 Backstroke | SCY | 1:10.41 | B+0.82s to BB | 2025-10-04 | 2025 NE CS Fall Sprints - copied venue |
| 200 Backstroke | SCY | 2:39.17 | B+8.28s to BB | 2026-01-11 | 2026 NE CRIM Jan Team Specialty venue |
| 50 Breaststroke | SCY | 31.46 | AAA+0.47s to AAAA | 2025-12-20 | 2026 NE NSSC Senior Championships venue |
| 100 Breaststroke | SCY | 1:07.50 | AAA+2.51s to AAAA | 2025-12-19 | 2026 NE NSSC Senior Championships venue |
| 200 Breaststroke | SCY | 2:31.45 | AA+4.16s to AAA | 2026-03-01 | 2026 NE CRIM 15-18 AG Championships venue |
| 50 Butterfly | SCY | 28.60 | AA+1.01s to AAA | 2025-10-05 | 2025 NE CS Fall Sprints - copied venue |
| 100 Butterfly | SCY | 1:06.35 | BB+2.26s to A | 2024-11-17 | 2024 NE SAC Turkey Splash venue |
| 100 Individual Medley | SCY | 1:07.76 | 2025-10-04 | 2025 NE CS Fall Sprints - copied venue | |
| 200 Individual Medley | SCY | 2:23.57 | BB+0.18s to A | 2025-10-25 | 2025 NE SHAWMUT Pumpkin Splash - copied venue |
| 400 Individual Medley | SCY | 5:08.09 | BB+1.10s to A | 2024-11-15 | 2024 NE SAC Turkey Splash venue |
| 50 Freestyle | LCM | 29.22 | AA+0.63s to AAA | 2025-01-01 | 2025 NE Swimming LC Senior Championships - Brown University, S#: NE25-0710CS venue |
| 100 Freestyle | LCM | 1:04.46 | AA+2.77s to AAA | 2025-01-01 | 2025 NE Swimming LC Senior Championships - Brown University, S#: NE25-0710CS venue |
| 200 Freestyle | LCM | 2:25.99 | BB+0.70s to A | 2025-06-01 | 2025 NE CS May 30-June 1 Summer Fiesta venue |
| 400 Freestyle | LCM | 5:29.33 | BB+21.64s to A | 2024-05-31 | 2024 NE BGSC May Summer Fiesta venue |
| 800 Freestyle | LCM | 10:47.72 | BB+12.43s to A | 2026-06-12 | 2026 NE CS Summer Solstice venue |
| 50 Backstroke | LCM | 38.87 | B+0.48s to BB | 2026-06-14 | 2026 NE CS Summer Solstice venue |
| 100 Backstroke | LCM | 1:24.03 | B+2.84s to BB | 2026-04-11 | 2026 NE CS Season Opener venue |
| 200 Backstroke | LCM | 3:07.61 | B+13.12s to BB | 2024-05-12 | 2024 NE BGSC May 10-12 Spring Fling venue |
| 50 Breaststroke | LCM | 37.52 | AA+0.73s to AAA | 2025-01-01 | 2025 NE Swimming LC Senior Championships - Brown University, S#: NE25-0710CS venue |
| 100 Breaststroke | LCM | 1:24.87 | A+3.38s to AA | 2025-01-01 | 2025 NE Swimming LC Senior Championships - Brown University, S#: NE25-0710CS venue |
| 200 Breaststroke | LCM | 3:07.65 | BB+5.26s to A | 2026-05-16 | 2026 NE CS Spring Fever venue |
| 50 Butterfly | LCM | 32.82 | A+0.63s to AA | 2026-06-13 | 2026 NE CS Summer Solstice venue |
| 100 Butterfly | LCM | 1:21.47 | B+3.08s to BB | 2025-05-10 | 2025 NE CS May 9-11 Spring Fling venue |
| 200 Butterfly | LCM | 3:24.91 | +16.72s to B | 2024-05-12 | 2024 NE BGSC May 10-12 Spring Fling venue |
| 200 Individual Medley | LCM | 2:49.54 | BB+5.15s to A | 2026-05-17 | 2026 NE CS Spring Fever venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 16.
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 | 25.18 | flying | 200 Free Relay (leg 2) | 2024-02-24 | 2024 NE CRA 11-14 SCY Age Group Championship |
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
3161 points (5/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:49.63 | 636 |
| 200 BK SCY | 2:39.17 | 446 |
| 200 BR SCY | 2:31.45 | 781 |
| 200 IM SCY | 2:23.57 | 653 |
| 400 IM SCY | 5:08.09 | 645 |
| 200 FL SCY | — | 0 |
IMR 15-16 · SCY
3434 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:59.91 | 810 |
| 100 BK SCY | 1:10.41 | 505 |
| 100 BR SCY | 1:07.50 | 872 |
| 100 FL SCY | 1:06.35 | 594 |
| 200 IM SCY | 2:23.57 | 653 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 52.97
Front half 25.43s · back half 27.54s
200 Freestyle SCY 1:59.91
Front half 57.53s · back half 62.38s
500 Freestyle SCY 5:49.63
Front half 175.45s · back half 174.18s
100 Backstroke SCY 1:10.41
Front half 33.70s · back half 36.71s
200 Backstroke SCY 2:39.17
Front half 78.22s · back half 80.95s
100 Breaststroke SCY 1:07.50
Front half 32.57s · back half 34.93s
200 Breaststroke SCY 2:31.45
Front half 74.05s · back half 77.40s
100 Butterfly SCY 1:06.35
Front half 30.82s · back half 35.53s
100 Individual Medley SCY 1:07.76
Front half 31.99s · back half 35.77s
200 Individual Medley SCY 2:23.57
Front half 70.09s · back half 73.48s
400 Individual Medley SCY 5:08.09
Front half 153.60s · back half 154.49s
100 Freestyle LCM 1:04.46 split/total mismatch
Front half 30.37s · back half 34.09s
200 Freestyle LCM 2:25.99
Front half 68.33s · back half 77.66s
400 Freestyle LCM 5:29.33
Front half 159.17s · back half 170.16s
800 Freestyle LCM 10:47.72
Front half 318.86s · back half 328.86s
100 Backstroke LCM 1:24.03
Front half 40.56s · back half 43.47s
200 Backstroke LCM 3:07.61
Front half 93.21s · back half 94.40s
100 Breaststroke LCM 1:24.87 split/total mismatch
Front half 40.37s · back half 44.50s
200 Breaststroke LCM 3:07.65
Front half 92.47s · back half 95.18s
100 Butterfly LCM 1:21.47
Front half 36.75s · back half 44.72s
200 Butterfly LCM 3:24.91
Front half 92.80s · back half 112.11s
200 Individual Medley LCM 2:49.54
Front half 83.87s · back half 85.67s
Progression
Faster times are higher. One card per event, all courses & history.