swimSean Harrelson
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 21.84 | AA+0.15s to AAA | 2026-04-02 | 2026 YMCA Short Course Nationals fast pool |
| 100 Breaststroke | SCY | 57.00 | AAA+0.81s to AAAA | 2026-04-02 | 2026 YMCA SCY Time Trials venue |
| 200 Breaststroke | SCY | 2:10.05 | AA+2.06s to AAA | 2026-03-31 | 2026 YMCA Short Course Nationals fast pool |
| 100 Butterfly | SCY | 51.09 | AAA+1.90s to AAAA | 2026-03-31 | 2026 YMCA Short Course Nationals fast pool |
| 50 Freestyle | LCM | 26.04 | AA+0.95s to AAA | 2025-06-14 | 2025 WI SWAT Summer Grand Prix venue |
| 200 Freestyle | LCM | 2:17.73 | BB+6.14s to A | 2025-06-13 | 2025 WI SWAT Summer Grand Prix venue |
| 100 Breaststroke | LCM | 1:09.31 | AA+0.92s to AAA | 2025-06-14 | 2025 WI SWAT Summer Grand Prix venue |
| 200 Breaststroke | LCM | 2:44.06 | BB+0.77s to A | 2024-05-18 | 2024 MAC LC Midwest Invitational venue |
| 100 Butterfly | LCM | 1:01.81 | A+0.22s to AA | 2024-07-26 | 2024 LC Illinois Senior Championships venue |
| 200 Butterfly | LCM | 2:25.00 | BB+1.11s to A | 2024-05-18 | 2024 MAC LC Midwest Invitational venue |
| 200 Individual Medley | LCM | 2:25.61 | A+3.72s to AA | 2025-06-13 | 2025 WI SWAT Summer Grand Prix venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 18.
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 17-18 · LCM
1986 points (3/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 BR LCM | 2:44.06 | 646 |
| 200 FL LCM | 2:25.00 | 645 |
| 200 IM LCM | 2:25.61 | 695 |
| 400 FR LCM | — | 0 |
| 200 BK LCM | — | 0 |
| 400 IM LCM | — | 0 |
IMR 17-18 · LCM
2843 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:17.73 | 577 |
| 100 BR LCM | 1:09.31 | 828 |
| 100 FL LCM | 1:01.81 | 743 |
| 200 IM LCM | 2:25.61 | 695 |
| 100 BK LCM | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Breaststroke SCY 57.00 RT 0.68s
Front half 26.77s · back half 30.23s
200 Breaststroke SCY 2:10.05 RT 0.70s
Front half 63.00s · back half 67.05s
100 Butterfly SCY 51.09 RT 0.71s
Front half 24.12s · back half 26.97s
200 Freestyle LCM 2:17.73
Front half 67.47s · back half 70.26s
100 Breaststroke LCM 1:09.31
Front half 33.01s · back half 36.30s
200 Breaststroke LCM 2:44.06
Front half 81.05s · back half 83.01s
200 Butterfly LCM 2:25.00
Front half 67.92s · back half 77.08s
200 Individual Medley LCM 2:25.61
Front half 71.17s · back half 74.44s
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.