James O'Brien
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 25.20 | BB+1.11s to A·+2.91s to Sectionals | 2025-01-31 | 2025 February Classicvenue |
| 100 Freestyle | SCY | 55.72 | BB+3.13s to A·+7.43s to Sectionals | 2025-12-07 | RAFC Winter Classicvenue |
| 200 Freestyle | SCY | 2:07.01 | B+1.32s to BB·+21.22s to Sectionals | 2024-02-03 | Groundhog Day Meetvenue |
| 500 Freestyle | SCY | 5:54.56 | B+13.47s to BB·+68.47s to Sectionals | 2024-02-17 | 8th Annual Small Team Championshipsvenue |
| 50 Backstroke | SCY | 31.36 | +0.17s to B·+5.67s to Sectionals | 2024-11-16 | 2024 PSA Turkey Meetvenue |
| 100 Backstroke | SCY | 1:10.26 | +3.47s to B·+15.17s to Sectionals | 2025-02-01 | 2025 February Classicvenue |
| 200 Backstroke | SCY | 2:30.22 | +4.13s to B·+27.93s to Sectionals | 2025-11-23 | 2025 SJAC Turkey Meetvenue |
| 50 Breaststroke | SCY | 31.34 | BB+0.45s to A·+1.85s to Sectionals | 2025-07-06 | 2025 July Last Chancevenue |
| 100 Breaststroke | SCY | 1:10.12 | B+0.03s to BB·+7.43s to Sectionals | 2025-07-06 | 2025 July Last Chancevenue |
| 200 Breaststroke | SCY | 2:38.78 | B+6.29s to BB·+19.49s to Sectionals | 2024-10-13 | October Spook-Outvenue |
| 50 Butterfly | SCY | 30.35 | B+1.36s to BB·+6.06s to Sectionals | 2025-03-02 | 2025 Area 1 Spring Championshipsvenue |
| 100 Butterfly | SCY | 1:09.92 | +3.83s to B·+17.23s to Sectionals | 2024-10-12 | October Spook-Outvenue |
| 200 Individual Medley | SCY | 2:24.63 | B+5.74s to BB·+25.24s to Sectionals | 2024-02-17 | 8th Annual Small Team Championshipsvenue |
| 400 Individual Medley | SCY | 5:15.77 | B+16.78s to BB·+63.78s to Sectionals | 2024-10-26 | 2024 PSA Halloween Invitationalvenue |
| 50 Freestyle | LCM | 29.57 | BB+1.78s to A·+3.98s to Sectionals | 2025-04-26 | 14th Annual JAX50 Sprint Dual Challengevenue |
| 100 Freestyle | LCM | 1:04.76 | BB+4.17s to A·+9.47s to Sectionals | 2026-05-17 | 2026 PSA May Invitefast pool |
| 200 Freestyle | LCM | 2:31.86 | B+7.47s to BB·+30.97s to Sectionals | 2024-04-06 | EAJ Spring into Long Courseslow pool |
| 50 Backstroke | LCM | 36.93 | B+2.24s to BB·+6.74s to Sectionals | 2025-04-27 | 14th Annual JAX50 Sprint Dual Challengevenue |
| 100 Backstroke | LCM | 1:18.77 | +0.08s to B·+14.28s to Sectionals | 2025-04-26 | 14th Annual JAX50 Sprint Dual Challengevenue |
| 50 Breaststroke | LCM | 37.57 | BB+2.58s to A·+3.38s to Sectionals | 2025-04-26 | 14th Annual JAX50 Sprint Dual Challengevenue |
| 100 Breaststroke | LCM | 1:26.42 | B+4.63s to BB·+14.03s to Sectionals | 2024-04-07 | EAJ Spring into Long Courseslow pool |
| 200 Breaststroke | LCM | 3:08.43 | B+9.94s to BB·+28.04s to Sectionals | 2025-04-05 | EAJ Spring into Long Courseslow pool |
| 50 Butterfly | LCM | 37.36 | +2.17s to B·+9.57s to Sectionals | 2025-04-27 | 14th Annual JAX50 Sprint Dual Challengevenue |
| 100 Butterfly | LCM | 1:26.31 | +10.32s to B·+25.82s to Sectionals | 2025-04-06 | EAJ Spring into Long Courseslow pool |
| 200 Individual Medley | LCM | 2:49.18 | B+8.29s to BB·+31.49s to Sectionals | 2026-05-17 | 2026 PSA May Invitefast pool |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 17.
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 | 27.09 | flying | 200 Free Relay (leg 4) | 2024-02-17 | 8th Annual Small Team Championships |
| 50 Breaststroke | SCY | 31.35 | flying | 200 Medley Relay (leg 2) | 2025-03-02 | 2025 Area 1 Spring 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 17-18 · SCY
2148 points (5/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:54.56 | 453 |
| 200 BK SCY | 2:30.22 | 370 |
| 200 BR SCY | 2:38.78 | 450 |
| 200 IM SCY | 2:24.63 | 447 |
| 400 IM SCY | 5:15.77 | 428 |
| 200 FL SCY | — | 0 |
IMR 17-18 · SCY
2128 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:07.01 | 490 |
| 100 BK SCY | 1:10.26 | 336 |
| 100 BR SCY | 1:10.12 | 509 |
| 100 FL SCY | 1:09.92 | 346 |
| 200 IM SCY | 2:24.63 | 447 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 55.72
Front half 26.67s · back half 29.05s
200 Freestyle SCY 2:07.01
Front half 61.41s · back half 65.60s
500 Freestyle SCY 5:54.56
Front half 171.44s · back half 183.12s
100 Backstroke SCY 1:10.26
Front half 33.52s · back half 36.74s
100 Breaststroke SCY 1:10.12
Front half 32.49s · back half 37.63s
200 Breaststroke SCY 2:38.78
Front half 76.00s · back half 82.78s
100 Butterfly SCY 1:09.92
Front half 31.58s · back half 38.34s
200 Individual Medley SCY 2:24.63
Front half 71.47s · back half 73.16s
400 Individual Medley SCY 5:15.77
Front half 157.92s · back half 157.85s
100 Freestyle LCM 1:04.76
Front half 31.19s · back half 33.57s
200 Freestyle LCM 2:31.86
Front half 73.41s · back half 78.45s
100 Backstroke LCM 1:18.77
Front half 37.59s · back half 41.18s
200 Breaststroke LCM 3:08.43
Front half 92.89s · back half 95.54s
200 Individual Medley LCM 2:49.18
Front half 81.42s · back half 87.76s
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.