swimCharlie O'Brien
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 16.64 | 2023-02-19 | 2023 EST/CAA/LBA/NAAC Mini Meet slow pool | |
| 50 Freestyle | SCY | 30.66 | BB+1.27s to A | 2026-03-15 | 2026 Speedo Maryland Junior Championship - Si venue |
| 100 Freestyle | SCY | 1:06.68 | BB+2.59s to A | 2026-01-24 | Live MAS Invitational 2026 - copied - copied venue |
| 200 Freestyle | SCY | 2:39.33 | B+7.64s to BB | 2025-02-08 | 2025 LBA Last Chance Invite venue |
| 500 Freestyle | SCY | 7:07.29 | B+21.20s to BB | 2025-10-04 | 2025 Aimee McCormick Turrall Memorial Meet venue |
| 25 Backstroke | SCY | 22.60 | 2022-10-09 | 2022 Aimee McCormick Turrall Memorial Meet venue | |
| 50 Backstroke | SCY | 36.33 | B+0.24s to BB | 2026-01-24 | Live MAS Invitational 2026 - copied - copied venue |
| 100 Backstroke | SCY | 1:15.18 | BB+2.19s to A | 2026-03-15 | 2026 Speedo Maryland Junior Championship - Si venue |
| 200 Backstroke | SCY | 2:45.22 | BB+10.83s to A | 2026-03-14 | 2026 Speedo Maryland Junior Championship - Si venue |
| 25 Breaststroke | SCY | 24.47 | 2022-11-05 | 2022 Bridget Vache Memorial MAC Fall Frenzy slow pool | |
| 50 Breaststroke | SCY | 39.58 | BB+1.89s to A | 2026-03-15 | 2026 Speedo Maryland Junior Championship - Si venue |
| 100 Breaststroke | SCY | 1:29.49 | B+0.10s to BB | 2026-03-14 | 2026 Speedo Maryland Junior Championship - Si venue |
| 200 Breaststroke | SCY | 3:18.65 | B+7.46s to BB | 2026-01-03 | 2026 LBA IMX Distance Challenge venue |
| 25 Butterfly | SCY | 20.03 | 2023-02-19 | 2023 EST/CAA/LBA/NAAC Mini Meet slow pool | |
| 50 Butterfly | SCY | 37.51 | +0.52s to B | 2025-12-06 | 2025 Sport Fair Winter Classic venue |
| 100 Butterfly | SCY | 1:29.91 | +3.82s to B | 2025-10-04 | 2025 Aimee McCormick Turrall Memorial Meet venue |
| 100 Individual Medley | SCY | 1:22.21 | B+3.02s to BB | 2025-12-05 | 2025 Sport Fair Winter Classic venue |
| 200 Individual Medley | SCY | 2:59.08 | B+8.29s to BB | 2025-10-03 | 2025 Aimee McCormick Turrall Memorial Meet venue |
| 400 Individual Medley | SCY | 6:32.93 | +0.64s to B | 2024-12-28 | 2024 LBA IMX Distance Challenge venue |
| 50 Freestyle | LCM | 34.73 | BB+1.34s to A | 2026-05-02 | 2026 John C. Clegg Memorial Long Course Meet venue |
| 100 Freestyle | LCM | 1:17.95 | BB+4.46s to A | 2026-05-02 | 2026 John C. Clegg Memorial Long Course Meet venue |
| 200 Freestyle | LCM | 2:47.81 | BB+7.72s to A | 2026-05-03 | 2026 John C. Clegg Memorial Long Course Meet venue |
| 400 Freestyle | LCM | 5:59.33 | BB+22.54s to A | 2026-05-01 | 2026 John C. Clegg Memorial Long Course Meet venue |
| 50 Backstroke | LCM | 40.67 | BB+2.18s to A | 2026-05-02 | 2026 John C. Clegg Memorial Long Course Meet venue |
| 100 Backstroke | LCM | 1:29.53 | BB+4.74s to A | 2026-05-03 | 2026 John C. Clegg Memorial Long Course Meet venue |
| 50 Breaststroke | LCM | 47.64 | B+1.45s to BB | 2026-05-03 | 2026 John C. Clegg Memorial Long Course Meet venue |
| 100 Breaststroke | LCM | 1:59.08 | +8.69s to B | 2025-05-03 | 2025 John C. Clegg Memorial Long Course Meet venue |
| 50 Butterfly | LCM | 45.61 | +3.82s to B | 2025-05-04 | 2025 John C. Clegg Memorial Long Course Meet venue |
| 200 Individual Medley | LCM | 3:39.49 | +8.70s to B | 2024-04-13 | 2024 Fox April Long Course Invitational venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 12.
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 | 32.48 | flying | 200 Medley Relay (leg 4) | 2025-03-16 | 2025 MD LSC / NBAC JR Champs - Site 1 |
| 50 Freestyle | SCY | 32.77 | flying | 200 Free Relay (leg 3) | 2025-03-15 | 2025 MD LSC / NBAC JR Champs - Site 1 |
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
2319 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 7:07.29 | 451 |
| 100 BK SCY | 1:15.18 | 579 |
| 100 BR SCY | 1:29.49 | 509 |
| 100 FL SCY | 1:29.91 | 324 |
| 200 IM SCY | 2:59.08 | 456 |
IMR 11-12 · SCY
2410 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:39.33 | 447 |
| 50 BK SCY | 36.33 | 513 |
| 50 BR SCY | 39.58 | 579 |
| 50 FL SCY | 37.51 | 402 |
| 100 IM SCY | 1:22.21 | 469 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:06.68
Front half 31.67s · back half 35.01s
200 Freestyle SCY 2:39.33
Front half 75.78s · back half 83.55s
500 Freestyle SCY 7:07.29
Front half 209.71s · back half 217.58s
100 Backstroke SCY 1:15.18
Front half 37.06s · back half 38.12s
200 Backstroke SCY 2:45.22
Front half 81.18s · back half 84.04s
100 Breaststroke SCY 1:29.49
Front half 42.75s · back half 46.74s
200 Breaststroke SCY 3:18.65
Front half 93.84s · back half 104.81s
100 Butterfly SCY 1:29.91
Front half 39.15s · back half 50.76s
100 Individual Medley SCY 1:22.21
Front half 38.15s · back half 44.06s
200 Individual Medley SCY 2:59.08
Front half 86.00s · back half 93.08s
400 Individual Medley SCY 6:32.93
Front half 193.66s · back half 199.27s
100 Freestyle LCM 1:17.95
Front half 36.93s · back half 41.02s
200 Freestyle LCM 2:47.81
Front half 80.79s · back half 87.02s
400 Freestyle LCM 5:59.33
Front half 175.55s · back half 183.78s
100 Backstroke LCM 1:29.53
Front half 42.59s · back half 46.94s
100 Breaststroke LCM 1:59.08
Front half 54.86s · back half 64.22s
200 Individual Medley LCM 3:39.49
Front half 112.07s · back half 107.42s
Progression
Faster times are higher. One card per event, all courses & history.