swimKat O'Brien
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 26.65 | A+0.56s to AA | 2019-03-23 | 2019 ME Winter Championships fast pool |
| 100 Freestyle | SCY | 58.43 | A+1.84s to AA | 2019-03-24 | 2019 ME Winter Championships fast pool |
| 100 Backstroke | SCY | 1:09.21 | B+0.02s to BB | 2019-03-23 | 2019 ME Winter Championships fast pool |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 17.
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 | 27.12 | flying | 200 Free Relay (leg 2) | 2019-03-24 | 2019 ME Winter Championships |
| 100 Freestyle | SCY | 59.52 | flying | 400 Free Relay (leg 4) | 2019-12-15 | 2019 ME BASA Bowdoin Open |
| 100 Freestyle | SCY | 57.84 | flying | 400 Medley Relay (leg 4) | 2019-03-23 | 2019 ME Winter 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
IMR 17-18 · SCY
501 points (1/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK SCY | 1:09.21 | 501 |
| 200 FR SCY | — | 0 |
| 100 BR SCY | — | 0 |
| 100 FL SCY | — | 0 |
| 200 IM 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 58.43
Front half 28.14s · back half 30.29s
100 Backstroke SCY 1:09.21
Front half 33.86s · back half 35.35s
Progression
Faster times are higher. One card per event, all courses & history.