swimDax O'Brien
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 22.63 | AA+0.24s to AAA | 2026-03-15 | 2026 NW Spring Speedo Sectionals - Boise venue |
| 100 Freestyle | SCY | 50.11 | AA+1.12s to AAA | 2026-03-12 | 2026 NW Spring Speedo Sectionals - Boise venue |
| 200 Freestyle | SCY | 1:53.35 | A+1.36s to AA | 2024-02-18 | 2024 AK Age Group Championships fast pool |
| 500 Freestyle | SCY | 5:16.26 | A+11.97s to AA | 2024-02-17 | 2024 AK Age Group Championships fast pool |
| 50 Backstroke | SCY | 41.45 | +9.66s to B | 2019-09-21 | Fall Equinox Swim Meet 2019 slow pool |
| 100 Backstroke | SCY | 59.79 | BB+1.70s to A | 2026-03-13 | 2026 NW Spring Speedo Sectionals - Boise venue |
| 200 Backstroke | SCY | 2:12.06 | BB+4.77s to A | 2026-03-14 | 2026 NW Spring Speedo Sectionals - Boise venue |
| 25 Breaststroke | SCY | 25.65 | 2017-02-11 | 2017 Valentine's Day Invitational slow pool | |
| 50 Breaststroke | SCY | 37.65 | +0.96s to B | 2021-04-01 | 2021 Alaska Age Group Postal fast pool |
| 100 Breaststroke | SCY | 1:04.46 | A+1.27s to AA | 2026-03-14 | 2026 NW Spring Speedo Sectionals - Boise venue |
| 200 Breaststroke | SCY | 2:25.96 | BB+2.77s to A | 2024-02-17 | 2024 AK Age Group Championships fast pool |
| 50 Butterfly | SCY | 33.39 | +1.60s to B | 2021-02-06 | Central Area Conference Invite 2020 venue |
| 100 Individual Medley | SCY | 1:00.40 | 2025-11-21 | NLSC Sprint Classic venue | |
| 200 Individual Medley | SCY | 2:55.11 | +23.82s to B | 2019-04-28 | 2019 OPA Alaska Junior Olympic Championship venue |
| 50 Freestyle | LCM | 27.07 | AA+1.18s to AAA | 2024-06-23 | 2024 ST AAAA NS George Block Invite venue |
| 100 Freestyle | LCM | 59.52 | A+0.53s to AA | 2024-06-20 | 2024 ST AAAA NS George Block Invite venue |
| 200 Freestyle | LCM | 2:14.91 | BB+0.12s to A | 2024-06-22 | 2024 ST AAAA NS George Block Invite venue |
| 400 Freestyle | LCM | 4:58.06 | BB+10.47s to A | 2024-06-23 | 2024 ST AAAA NS George Block Invite venue |
| 50 Backstroke | LCM | 45.44 | +7.55s to B | 2019-07-26 | 2019 Alaska Summer Championship venue |
| 200 Backstroke | LCM | 2:36.80 | BB+9.11s to A | 2024-06-20 | 2024 ST AAAA NS George Block Invite venue |
| 50 Breaststroke | LCM | 36.35 | BB+0.46s to A | 2024-06-22 | 2024 ST AAAA NS George Block Invite venue |
| 100 Breaststroke | LCM | 1:50.70 | +20.81s to B | 2019-07-27 | 2019 Alaska Summer Championship venue |
| 200 Breaststroke | LCM | 3:00.46 | BB+12.97s to A | 2024-06-21 | 2024 ST AAAA NS George Block Invite venue |
| 200 Individual Medley | LCM | 3:29.32 | +32.83s to B | 2019-07-28 | 2019 Alaska Summer Championship 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 | 28.97 | flying | 200 Medley Relay (leg 4) | 2021-04-01 | 2021 Alaska Age Group Postal |
| 50 Freestyle | SCY | 23.77 | flying | 200 Free Relay (leg 2) | 2024-02-18 | 2024 AK Age Group Championships |
| 100 Freestyle | SCY | 52.04 | flying | 400 Free Relay (leg 2) | 2024-02-16 | 2024 AK Age Group Championships |
| 50 Breaststroke | SCY | 30.94 | flying | 200 Medley Relay (leg 2) | 2024-02-17 | 2024 AK Age Group Championships |
| 50 Butterfly | SCY | 33.73 | flying | 200 Medley Relay (leg 3) | 2020-02-14 | 2020 AK Age Group Championships |
| 50 Freestyle | LCM | 41.17 | flying | 200 Free Relay (leg 3) | 2018-07-29 | 2018 Alaska Summer Championship |
| 50 Breaststroke | LCM | 46.10 | flying | 200 Medley Relay (leg 2) | 2018-07-28 | 2018 Alaska Summer 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
2156 points (4/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:16.26 | 666 |
| 200 BK SCY | 2:12.06 | 588 |
| 200 BR SCY | 2:25.96 | 632 |
| 200 IM SCY | 2:55.11 | 270 |
| 200 FL SCY | — | 0 |
| 400 IM SCY | — | 0 |
IMR 15-16 · SCY
2323 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:53.35 | 728 |
| 100 BK SCY | 59.79 | 609 |
| 100 BR SCY | 1:04.46 | 716 |
| 200 IM SCY | 2:55.11 | 270 |
| 100 FL 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 50.11
Front half 23.57s · back half 26.54s
200 Freestyle SCY 1:53.35 RT 0.70s
Front half 54.35s · back half 59.00s
500 Freestyle SCY 5:16.26 RT 0.81s
Front half 149.39s · back half 166.87s
100 Backstroke SCY 59.79
Front half 28.59s · back half 31.20s
200 Backstroke SCY 2:12.06
Front half 61.80s · back half 70.26s
100 Breaststroke SCY 1:04.46
Front half 30.03s · back half 34.43s
200 Breaststroke SCY 2:25.96 RT 0.73s
Front half 68.57s · back half 77.39s
100 Individual Medley SCY 1:00.40
Front half 28.20s · back half 32.20s
200 Individual Medley SCY 2:55.11
Front half 88.51s · back half 86.60s
200 Freestyle LCM 2:14.91
Front half 63.85s · back half 71.06s
400 Freestyle LCM 4:58.06
Front half 141.98s · back half 156.08s
200 Backstroke LCM 2:36.80
Front half 75.57s · back half 81.23s
100 Breaststroke LCM 1:50.70
Front half 52.61s · back half 58.09s
200 Breaststroke LCM 3:00.46
Front half 82.89s · back half 97.57s
200 Individual Medley LCM 3:29.32
Front half 105.13s · back half 104.19s
Reaction time
From electronically-timed starts only (~2% of corpus swims carry a reaction time). PRs with a recorded reaction show an RT chip in the splits section above.
Progression
Faster times are higher. One card per event, all courses & history.