Charlie O'Brien
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 16.64 | 2023-02-19 | 2023 EST/CAA/LBA/NAAC Mini Meetvenue | |
| 50 Freestyle | SCY | 30.66 | BB+1.27s to A·+5.87s to Sectionals | 2026-03-15 | 2026 Speedo Maryland Junior Championship - Sivenue |
| 100 Freestyle | SCY | 1:05.70 | BB+1.61s to A·+12.61s to Sectionals | 2026-10-03 | 2026 Aimee McCormick Turrall Memorial Meetvenue |
| 200 Freestyle | SCY | 2:18.79 | A+4.60s to AA·+23.80s to Sectionals | 2026-10-04 | 2026 Aimee McCormick Turrall Memorial Meetvenue |
| 500 Freestyle | SCY | 6:29.65 | BB+14.76s to A·+80.86s to Sectionals | 2026-10-03 | 2026 Aimee McCormick Turrall Memorial Meetvenue |
| 25 Backstroke | SCY | 22.60 | 2022-10-09 | 2022 Aimee McCormick Turrall Memorial Meetvenue | |
| 50 Backstroke | SCY | 36.33 | B+0.24s to BB·+10.04s to Futures | 2026-01-24 | Live MAS Invitational 2026 - copied - copiedvenue |
| 100 Backstroke | SCY | 1:15.18 | BB+2.19s to A·+15.89s to Sectionals | 2026-03-15 | 2026 Speedo Maryland Junior Championship - Sivenue |
| 200 Backstroke | SCY | 2:45.22 | BB+10.83s to A·+36.33s to Sectionals | 2026-03-14 | 2026 Speedo Maryland Junior Championship - Sivenue |
| 25 Breaststroke | SCY | 24.47 | 2022-11-05 | 2022 Bridget Vache Memorial MAC Fall Frenzyvenue | |
| 50 Breaststroke | SCY | 39.58 | BB+1.89s to A·+9.79s to Futures | 2026-03-15 | 2026 Speedo Maryland Junior Championship - Sivenue |
| 100 Breaststroke | SCY | 1:27.08 | BB+4.89s to A·+18.89s to Sectionals | 2026-10-04 | 2026 Aimee McCormick Turrall Memorial Meetvenue |
| 200 Breaststroke | SCY | 3:18.65 | B+7.46s to BB·+49.26s to Sectionals | 2026-01-03 | 2026 LBA IMX Distance Challengevenue |
| 25 Butterfly | SCY | 20.03 | 2023-02-19 | 2023 EST/CAA/LBA/NAAC Mini Meetvenue | |
| 50 Butterfly | SCY | 33.86 | BB+2.17s to A·+8.17s to Futures | 2026-10-04 | 2026 Aimee McCormick Turrall Memorial Meetvenue |
| 100 Butterfly | SCY | 1:29.91 | +3.82s to B·+31.42s to Sectionals | 2025-10-04 | 2025 Aimee McCormick Turrall Memorial Meetvenue |
| 100 Individual Medley | SCY | 1:22.21 | B+3.02s to BB | 2025-12-05 | 2025 Sport Fair Winter Classicvenue |
| 200 Individual Medley | SCY | 2:40.82 | BB+3.13s to A·+30.13s to Sectionals | 2026-10-02 | 2026 Aimee McCormick Turrall Memorial Meetvenue |
| 400 Individual Medley | SCY | 6:32.93 | +0.64s to B·+114.54s to Sectionals | 2024-12-28 | 2024 LBA IMX Distance Challengevenue |
| 50 Freestyle | LCM | 39.24 | +0.55s to B·+10.95s to Sectionals | 2024-04-14 | 2024 Fox April Long Course Invitationalvenue |
| 100 Freestyle | LCM | 1:27.91 | +2.22s to B·+27.22s to Sectionals | 2024-04-13 | 2024 Fox April Long Course Invitationalvenue |
| 200 Freestyle | LCM | 3:08.43 | +1.64s to B·+57.54s to Sectionals | 2024-04-14 | 2024 Fox April Long Course Invitationalvenue |
| 50 Backstroke | LCM | 46.90 | +2.01s to B·+16.01s to Futures | 2024-04-13 | 2024 Fox April Long Course Invitationalvenue |
| 100 Backstroke | LCM | 1:42.26 | +1.67s to B·+34.37s to Sectionals | 2024-04-14 | 2024 Fox April Long Course Invitationalvenue |
| 50 Breaststroke | LCM | 57.54 | +7.75s to B·+22.75s to Futures | 2024-04-14 | 2024 Fox April Long Course Invitationalvenue |
| 100 Breaststroke | LCM | 2:22.27 | +31.88s to B·+64.38s to Sectionals | 2023-05-13 | 2023 John C. Clegg Memorial Long Course Meetslow pool |
| 50 Butterfly | LCM | 51.24 | +9.45s to B·+21.75s to Futures | 2024-04-13 | 2024 Fox April Long Course Invitationalvenue |
| 200 Individual Medley | LCM | 3:39.49 | +8.70s to B·+71.10s to Sectionals | 2024-04-13 | 2024 Fox April Long Course Invitationalvenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 12.
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 | 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
2680 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 6:29.65 | 594 |
| 100 BK SCY | 1:15.18 | 579 |
| 100 BR SCY | 1:27.08 | 553 |
| 100 FL SCY | 1:29.91 | 324 |
| 200 IM SCY | 2:40.82 | 630 |
IMR 11-12 · SCY
2784 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:18.79 | 677 |
| 50 BK SCY | 36.33 | 513 |
| 50 BR SCY | 39.58 | 579 |
| 50 FL SCY | 33.86 | 546 |
| 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 1:05.70
Front half 32.07s · back half 33.63s
200 Freestyle SCY 2:18.79
Front half 67.64s · back half 71.15s
500 Freestyle SCY 6:29.65
Front half 192.17s · back half 197.48s
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 1:27.08
Front half 41.45s · back half 45.63s
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 2:40.82
Front half 77.60s · back half 83.22s
400 Individual Medley SCY 6:32.93
Front half 193.66s · back half 199.27s
100 Freestyle LCM 1:27.91
Front half 42.38s · back half 45.53s
200 Freestyle LCM 3:08.43
Front half 92.48s · back half 95.95s
100 Backstroke LCM 1:42.26
Front half 50.77s · back half 51.49s
100 Breaststroke LCM 2:22.27
Front half 66.98s · back half 75.29s
200 Individual Medley LCM 3:39.49
Front half 112.07s · back half 107.42s
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.