swimLiam O'Brien
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 26.22 | BB+0.63s to A·+3.83s to Sectionals | 2026-03-07 | 2026 MD LSC 14 & U Championshipsvenue |
| 100 Freestyle | SCY | 58.21 | BB+2.42s to A·+9.72s to Sectionals | 2026-01-18 | Winterfest 2026venue |
| 200 Freestyle | SCY | 2:12.82 | B+0.43s to BB·+26.53s to Sectionals | 2025-10-05 | 2025 ASC All Freestyle Meetvenue |
| 500 Freestyle | SCY | 5:57.03 | BB+26.24s to A·+69.64s to Sectionals | 2025-11-14 | 2025 CT WYW McDowell Y Thanksgiving Invite |
| 50 Backstroke | SCY | 34.97 | +1.28s to B·+11.28s to Futures | 2024-02-10 | GBSA - 2024 Last Chance Qualifyingvenue |
| 50 Breaststroke | SCY | 32.17 | A+0.48s to AA·+5.88s to Futures | 2026-03-08 | 2026 MD LSC 14 & U Championshipsvenue |
| 100 Breaststroke | SCY | 1:08.75 | A+2.56s to AA·+7.26s to Sectionals | 2026-01-18 | Winterfest 2026venue |
| 200 Breaststroke | SCY | 2:32.95 | BB+2.66s to A·+17.96s to Sectionals | 2026-01-17 | Winterfest 2026venue |
| 50 Butterfly | SCY | 39.38 | +6.19s to B·+16.49s to Futures | 2023-02-12 | GBSA - 2023 Last Chance Qualifyingvenue |
| 100 Butterfly | SCY | 1:04.53 | BB+4.14s to A·+11.34s to Sectionals | 2025-11-14 | 2025 CT WYW McDowell Y Thanksgiving Invite |
| 200 Butterfly | SCY | 2:27.84 | B+2.15s to BB·+26.65s to Sectionals | 2025-11-14 | 2025 CT WYW McDowell Y Thanksgiving Invite |
| 100 Individual Medley | SCY | 1:12.69 | 2024-02-10 | GBSA - 2024 Last Chance Qualifyingvenue | |
| 200 Individual Medley | SCY | 2:24.67 | BB+9.28s to A·+25.28s to Sectionals | 2026-01-17 | Winterfest 2026venue |
| 400 Individual Medley | SCY | 5:25.07 | B+11.48s to BB·+69.98s to Sectionals | 2025-11-14 | 2025 CT WYW McDowell Y Thanksgiving Invite |
| 50 Freestyle | LCM | 30.36 | BB+0.97s to A·+4.87s to Sectionals | 2026-04-25 | 2026 ASC Spring Long Course Meetvenue |
| 100 Freestyle | LCM | 1:13.15 | B+3.36s to BB·+17.66s to Sectionals | 2024-04-27 | 2024 ASC Spring Long Course Meetvenue |
| 200 Freestyle | LCM | 2:29.56 | BB+8.97s to A·+28.27s to Sectionals | 2026-04-26 | 2026 ASC Spring Long Course Meetvenue |
| 50 Backstroke | LCM | 42.92 | +3.43s to B·+15.03s to Futures | 2023-04-22 | 2023 EST Spring Into Long Courseslow pool |
| 50 Breaststroke | LCM | 36.90 | A+0.61s to AA·+6.01s to Futures | 2026-04-25 | 2026 ASC Spring Long Course Meetvenue |
| 100 Breaststroke | LCM | 1:22.17 | BB+1.58s to A·+12.48s to Sectionals | 2026-04-25 | 2026 ASC Spring Long Course Meetvenue |
| 200 Breaststroke | LCM | 3:03.45 | BB+8.66s to A·+30.86s to Sectionals | 2026-04-26 | 2026 ASC Spring Long Course Meetvenue |
| 50 Butterfly | LCM | 34.21 | BB+2.22s to A·+7.92s to Futures | 2026-04-26 | 2026 ASC Spring Long Course Meetvenue |
| 100 Butterfly | LCM | 1:24.36 | +4.07s to B·+24.17s to Sectionals | 2025-04-26 | 2025 ASC Spring Long Course Meetvenue |
| 200 Individual Medley | LCM | 2:46.34 | BB+9.45s to A·+30.15s to Sectionals | 2026-04-25 | 2026 ASC Spring Long Course Meetvenue |
| 400 Individual Medley | LCM | 6:23.55 | B+20.16s to BB·+93.66s to Sectionals | 2024-07-14 | 2024 MD Long Course Last Chance Meetvenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 14.
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 | 26.24 | flat | 200 Free Relay | 2026-01-16 | Winterfest 2026 |
| 100 Freestyle | SCY | 59.16 | flat | 400 Free Relay | 2026-01-18 | Winterfest 2026 |
| 50 Breaststroke | SCY | 30.80 | flying | 200 Medley Relay (leg 2) | 2026-03-05 | 2026 MD LSC 14 & U Championships |
| 100 Breaststroke | SCY | 1:09.96 | flying | 400 Medley Relay (leg 2) | 2026-01-17 | Winterfest 2026 |
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 13-14 · SCY
2687 points (5/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:57.03 | 531 |
| 200 BR SCY | 2:32.95 | 631 |
| 200 FL SCY | 2:27.84 | 503 |
| 200 IM SCY | 2:24.67 | 549 |
| 400 IM SCY | 5:25.07 | 473 |
| 200 BK SCY | — | 0 |
IMR 13-14 · SCY
2297 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:12.82 | 521 |
| 100 BR SCY | 1:08.75 | 677 |
| 100 FL SCY | 1:04.53 | 550 |
| 200 IM SCY | 2:24.67 | 549 |
| 100 BK SCY | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 58.21
Front half 27.89s · back half 30.32s
200 Freestyle SCY 2:12.82
Front half 63.47s · back half 69.35s
500 Freestyle SCY 5:57.03 split/total mismatch
100 Breaststroke SCY 1:08.75
Front half 32.28s · back half 36.47s
200 Breaststroke SCY 2:32.95
Front half 70.94s · back half 82.01s
100 Butterfly SCY 1:04.53 split/total mismatch
200 Butterfly SCY 2:27.84 split/total mismatch
100 Individual Medley SCY 1:12.69
Front half 33.95s · back half 38.74s
200 Individual Medley SCY 2:24.67
Front half 69.77s · back half 74.90s
100 Freestyle LCM 1:13.15
Front half 34.22s · back half 38.93s
200 Freestyle LCM 2:29.56
Front half 72.18s · back half 77.38s
100 Breaststroke LCM 1:22.17
Front half 37.28s · back half 44.89s
200 Breaststroke LCM 3:03.45
Front half 76.82s · back half 106.63s
100 Butterfly LCM 1:24.36
Front half 38.45s · back half 45.91s
200 Individual Medley LCM 2:46.34
Front half 81.28s · back half 85.06s
400 Individual Medley LCM 6:23.55
Front half 195.31s · back half 188.24s
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.