Dax O'Brien
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 28.00 | A+1.01s to AA·+4.81s to Sectionals | 2021-02-05 | Central Area Conference Invite 2020venue |
| 100 Freestyle | SCY | 58.73 | AA+2.54s to AAA·+7.74s to Sectionals | 2022-02-05 | 2022 Water Bowlvenue |
| 200 Freestyle | SCY | 2:15.81 | BB+2.12s to A·+24.02s to Sectionals | 2021-02-06 | Central Area Conference Invite 2020venue |
| 500 Freestyle | SCY | 6:04.25 | BB+4.26s to A·+61.56s to Sectionals | 2021-02-07 | Central Area Conference Invite 2020venue |
| 50 Backstroke | SCY | 41.45 | +2.96s to B·+17.76s to Futures | 2019-09-21 | Fall Equinox Swim Meet 2019venue |
| 100 Backstroke | SCY | 1:32.07 | +9.88s to B·+36.58s to Sectionals | 2019-04-06 | 2019 Splash into JO'svenue |
| 25 Breaststroke | SCY | 25.65 | 2017-02-11 | 2017 Valentine's Day Invitationalvenue | |
| 50 Breaststroke | SCY | 37.65 | BB+0.96s to A·+11.36s to Futures | 2021-04-01 | 2021 Alaska Age Group Postalfast pool |
| 100 Breaststroke | SCY | 1:16.98 | A+2.09s to AA·+13.79s to Sectionals | 2022-02-05 | 2022 Water Bowlvenue |
| 50 Butterfly | SCY | 33.39 | BB+2.20s to A·+10.50s to Futures | 2021-02-06 | Central Area Conference Invite 2020venue |
| 100 Individual Medley | SCY | 1:12.34 | BB+2.35s to A | 2021-02-05 | Central Area Conference Invite 2020venue |
| 200 Individual Medley | SCY | 2:55.11 | B+9.32s to BB·+51.12s to Sectionals | 2019-04-28 | 2019 OPA Alaska Junior Olympic Championshipvenue |
| 50 Freestyle | LCM | 34.91 | B+0.12s to BB·+7.92s to Sectionals | 2019-07-28 | 2019 Alaska Summer Championshipvenue |
| 100 Freestyle | LCM | 1:17.10 | B+0.91s to BB·+18.11s to Sectionals | 2019-07-28 | 2019 Alaska Summer Championshipvenue |
| 200 Freestyle | LCM | 2:52.90 | B+6.51s to BB·+44.21s to Sectionals | 2019-07-26 | 2019 Alaska Summer Championshipvenue |
| 50 Backstroke | LCM | 45.44 | +0.85s to B·+17.55s to Futures | 2019-07-26 | 2019 Alaska Summer Championshipvenue |
| 50 Breaststroke | LCM | 48.89 | B+3.00s to BB·+18.00s to Futures | 2019-07-26 | 2019 Alaska Summer Championshipvenue |
| 100 Breaststroke | LCM | 1:50.70 | +2.91s to B·+37.00s to Sectionals | 2019-07-27 | 2019 Alaska Summer Championshipvenue |
| 200 Individual Medley | LCM | 3:29.32 | +4.33s to B·+64.63s to Sectionals | 2019-07-28 | 2019 Alaska Summer Championshipvenue |
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 | 28.34 | flying | 200 Free Relay (leg 4) | 2021-04-01 | 2021 Alaska Age Group Postal |
| 50 Freestyle | SCY | 28.97 | flying | 200 Medley Relay (leg 4) | 2021-04-01 | 2021 Alaska Age Group Postal |
| 100 Freestyle | SCY | 1:02.11 | flying | 400 Free Relay (leg 4) | 2021-04-01 | 2021 Alaska Age Group Postal |
| 50 Backstroke | SCY | 46.57 | flat | 200 Medley Relay | 2017-12-02 | 2017 AK Central Area Championship |
| 50 Butterfly | SCY | 33.73 | flying | 200 Medley Relay (leg 3) | 2020-02-14 | 2020 AK Age Group Championships |
| 50 Freestyle | LCM | 34.91 | flat | 200 Free Relay | 2019-07-28 | 2019 Alaska Summer Championship |
| 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 |
| 50 Butterfly | LCM | 43.12 | flying | 200 Medley Relay (leg 3) | 2019-07-27 | 2019 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 11-12 · SCY
2026 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 6:04.25 | 646 |
| 100 BK SCY | 1:32.07 | 269 |
| 100 BR SCY | 1:16.98 | 682 |
| 200 IM SCY | 2:55.11 | 429 |
| 100 FL SCY | — | 0 |
IMR 11-12 · SCY
2650 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:15.81 | 639 |
| 50 BK SCY | 41.45 | 314 |
| 50 BR SCY | 37.65 | 585 |
| 50 FL SCY | 33.39 | 510 |
| 100 IM SCY | 1:12.34 | 602 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 58.73
Front half 27.73s · back half 31.00s
200 Freestyle SCY 2:15.81
Front half 65.13s · back half 70.68s
500 Freestyle SCY 6:04.25
Front half 181.52s · back half 182.73s
100 Breaststroke SCY 1:16.98
Front half 35.89s · back half 41.09s
100 Individual Medley SCY 1:12.34
Front half 35.04s · back half 37.30s
200 Individual Medley SCY 2:55.11
Front half 88.51s · back half 86.60s
100 Freestyle LCM 1:17.10
Front half 37.64s · back half 39.46s
200 Freestyle LCM 2:52.90
Front half 85.05s · back half 87.85s
100 Breaststroke LCM 1:50.70
Front half 52.61s · back half 58.09s
200 Individual Medley LCM 3:29.32
Front half 105.13s · back half 104.19s
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.