swimMary O'Brien
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 36.63 | +3.94s to B | 2018-01-20 | 2018 CO CUDA Classic venue |
| 100 Freestyle | SCY | 1:28.86 | +17.87s to B | 2021-09-25 | 2021 CO Jeffco September Open slow pool |
| 50 Backstroke | SCY | 44.33 | +7.74s to B | 2019-09-21 | 2019 CO FORM Fall High Point venue |
| 100 Backstroke | SCY | 1:33.44 | +16.25s to B | 2021-10-09 | 2021 CO FORM Gregg Gracheck Memorial venue |
| 50 Breaststroke | SCY | 50.42 | +8.33s to B | 2019-09-21 | 2019 CO FORM Fall High Point venue |
| 100 Breaststroke | SCY | 1:49.40 | +20.71s to B | 2021-09-25 | 2021 CO Jeffco September Open slow pool |
| 50 Butterfly | SCY | 55.17 | +19.18s to B | 2018-02-18 | 2018 CO ACES Winter Open venue |
| 100 Individual Medley | SCY | 1:41.77 | 2019-11-23 | 2019 CO CUDA Pentathlon XXXII venue | |
| 200 Individual Medley | SCY | 3:56.97 | +64.48s to B | 2018-02-17 | 2018 CO ACES Winter Open venue |
| 50 Freestyle | LCM | 38.83 | +1.44s to B | 2019-04-12 | 2019 CFAC LC Kickoff |
| 50 Backstroke | LCM | 56.09 | +13.40s to B | 2016-07-08 | 2016 CFAC Independence Meet |
| 50 Breaststroke | LCM | 47.25 | B+2.76s to BB | 2019-04-12 | 2019 CFAC LC Kickoff |
| 100 Breaststroke | LCM | 1:57.40 | +15.01s to B | 2016-07-08 | 2016 CFAC Independence Meet |
| 50 Butterfly | LCM | 58.11 | +18.12s to B | 2016-07-08 | 2016 CFAC Independence Meet |
| 100 Butterfly | LCM | 1:55.38 | +27.99s to B | 2019-04-12 | 2019 CFAC LC Kickoff |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 14.
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 Butterfly | SCY | 40.29 | flying | 200 Medley Relay (leg 3) | 2017-02-11 | 2017 CO Jeffco February Finale |
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
160 points (1/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 IM SCY | 3:56.97 | 160 |
| 500 FR SCY | — | 0 |
| 200 BK SCY | — | 0 |
| 200 BR SCY | — | 0 |
| 200 FL SCY | — | 0 |
| 400 IM SCY | — | 0 |
IMR 13-14 · SCY
619 points (3/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK SCY | 1:33.44 | 235 |
| 100 BR SCY | 1:49.40 | 224 |
| 200 IM SCY | 3:56.97 | 160 |
| 200 FR SCY | — | 0 |
| 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 1:28.86
Front half 39.14s · back half 49.72s
100 Backstroke SCY 1:33.44
Front half 43.42s · back half 50.02s
100 Breaststroke SCY 1:49.40
Front half 50.40s · back half 59.00s
100 Individual Medley SCY 1:41.77
Front half 49.23s · back half 52.54s
200 Individual Medley SCY 3:56.97
Front half 113.35s · back half 123.62s
Progression
Faster times are higher. One card per event, all courses & history.