swimEmerson O'Brien
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 20.56 | 2026-01-18 | LVSC Winter Classic 2026 venue | |
| 50 Freestyle | SCY | 42.79 | 2026-01-17 | LVSC Winter Classic 2026 venue | |
| 100 Freestyle | SCY | 1:36.65 | 2026-02-13 | 2026 Desert Committee Championships venue | |
| 25 Backstroke | SCY | 25.24 | 2025-11-09 | 2025 NV State SC Championship @ BCH venue | |
| 50 Backstroke | SCY | 48.97 | 2026-01-30 | SAND Rock the Blocks - January 2026 venue | |
| 100 Backstroke | SCY | 1:48.57 | 2025-12-12 | 2025 TYR Las Vegas Super Finals - venue | |
| 25 Breaststroke | SCY | 27.46 | 2025-10-18 | 2025 Sandpipers Pumpkin Invitational venue | |
| 50 Breaststroke | SCY | 57.22 | 2026-02-14 | 2026 Desert Committee Championships venue | |
| 100 Breaststroke | SCY | 2:12.50 | 2025-12-12 | 2025 TYR Las Vegas Super Finals - venue | |
| 25 Butterfly | SCY | 23.28 | 2026-01-17 | LVSC Winter Classic 2026 venue | |
| 50 Butterfly | SCY | 52.72 | 2026-02-15 | 2026 Desert Committee Championships venue | |
| 100 Individual Medley | SCY | 1:47.89 | 2026-01-18 | LVSC Winter Classic 2026 venue | |
| 50 Freestyle | LCM | 46.75 | 2026-04-12 | 2026Team Rebel Aquatics Long Course Opener venue | |
| 100 Freestyle | LCM | 1:42.60 | 2026-04-11 | 2026Team Rebel Aquatics Long Course Opener venue | |
| 200 Freestyle | LCM | 3:47.12 | 2026-05-03 | 2026 SAND Cinco De Mayo Invitational venue | |
| 50 Backstroke | LCM | 54.66 | 2026-04-12 | 2026Team Rebel Aquatics Long Course Opener venue | |
| 100 Backstroke | LCM | 1:53.82 | 2026-05-02 | 2026 SAND Cinco De Mayo Invitational venue | |
| 50 Breaststroke | LCM | 1:02.70 | 2026-04-11 | 2026Team Rebel Aquatics Long Course Opener venue | |
| 100 Breaststroke | LCM | 2:11.97 | 2026-05-24 | LVSC Memorial Day Invite 2026 venue | |
| 50 Butterfly | LCM | 51.10 | 2026-04-11 | 2026Team Rebel Aquatics Long Course Opener venue | |
| 100 Butterfly | LCM | 2:09.54 | 2026-06-27 | 2026 SAND John Sullivan Firecracker Inv fast pool |
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.
IMX / IMR
IMX 10 & under · LCM
1268 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 3:47.12 | 318 |
| 100 BK LCM | 1:53.82 | 361 |
| 100 BR LCM | 2:11.97 | 349 |
| 100 FL LCM | 2:09.54 | 240 |
| 200 IM LCM | — | 0 |
IMR 10 & under · SCY
1315 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 100 FR SCY | 1:36.65 | 261 |
| 50 BK SCY | 48.97 | 294 |
| 50 BR SCY | 57.22 | 267 |
| 50 FL SCY | 52.72 | 209 |
| 100 IM SCY | 1:47.89 | 284 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:36.65
Front half 44.22s · back half 52.43s
100 Backstroke SCY 1:48.57
Front half 53.15s · back half 55.42s
100 Breaststroke SCY 2:12.50
Front half 63.72s · back half 68.78s
100 Individual Medley SCY 1:47.89
Front half 49.64s · back half 58.25s
200 Freestyle LCM 3:47.12
Front half 108.87s · back half 118.25s
100 Backstroke LCM 1:53.82
Front half 55.36s · back half 58.46s
100 Breaststroke LCM 2:11.97
Front half 64.65s · back half 67.32s
100 Butterfly LCM 2:09.54
Front half 53.74s · back half 75.80s
Progression
Faster times are higher. One card per event, all courses & history.