Collin Severtson
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 23.45 | A+0.36s to AA | 2026-01-01 | rcc results |
| 100 Freestyle | SCY | 53.52 | BB+0.93s to A | 2024-10-05 | GA 2024 Pentathlon slow pool |
| 500 Freestyle | SCY | 5:03.13 | A+1.44s to AA | 2026-01-01 | rcc results |
| 100 Backstroke | SCY | 1:00.68 | BB+3.39s to A | 2025-01-01 | updated ralph crocker classic 2025 results |
| 200 Backstroke | SCY | 2:11.59 | BB+6.40s to A | 2025-01-01 | updated ralph crocker classic 2025 results |
| 50 Breaststroke | SCY | 30.23 | A+0.64s to AA | 2025-12-07 | 2025 GA SC Senior State Championships - copie venue |
| 100 Breaststroke | SCY | 1:08.17 | BB+3.48s to A | 2025-10-04 | GA 2025 Pentathlon slow pool |
| 200 Breaststroke | SCY | 2:16.08 | A+1.19s to AA | 2026-01-01 | rcc results |
| 50 Butterfly | SCY | 25.41 | AA+0.92s to AAA | 2025-12-07 | 2025 GA SC Senior State Championships - copie venue |
| 100 Butterfly | SCY | 51.62 | AAA+2.03s to AAAA | 2026-01-01 | rcc results |
| 200 Butterfly | SCY | 1:56.81 | AAA+5.22s to AAAA | 2026-01-01 | rcc results |
| 100 Individual Medley | SCY | 58.11 | 2025-12-06 | 2025 GA SC Senior State Championships - copie venue | |
| 200 Individual Medley | SCY | 2:02.95 | A+0.06s to AA | 2026-01-01 | rcc results |
| 400 Individual Medley | SCY | 4:26.19 | A+1.70s to AA | 2025-12-05 | 2025 GA SC Senior State Championships - copie venue |
| 50 Freestyle | LCM | 27.49 | A+0.80s to AA | 2026-05-31 | 2026 ABSC IMX Knockout Series venue |
| 100 Freestyle | LCM | 57.55 | AA+1.96s to AAA | 2026-06-28 | 2026 Bulldog Grand Slam - copied venue |
| 200 Freestyle | LCM | 2:14.73 | BB+1.44s to A | 2025-05-17 | 2025 Bulldog Grand Slam venue |
| 400 Freestyle | LCM | 4:43.66 | A+11.27s to AA | 2026-05-30 | 2026 ABSC IMX Knockout Series venue |
| 800 Freestyle | LCM | 9:45.37 | A+19.18s to AA | 2026-05-31 | 2026 ABSC IMX Knockout Series venue |
| 100 Backstroke | LCM | 1:06.96 | A+2.27s to AA | 2026-06-27 | 2026 Bulldog Grand Slam - copied venue |
| 50 Breaststroke | LCM | 34.61 | A+1.02s to AA | 2026-05-29 | 2026 ABSC IMX Knockout Series venue |
| 100 Breaststroke | LCM | 1:15.94 | BB+0.45s to A | 2026-06-26 | 2026 Bulldog Grand Slam - copied venue |
| 200 Breaststroke | LCM | 2:45.83 | BB+1.14s to A | 2026-05-31 | 2026 ABSC IMX Knockout Series venue |
| 50 Butterfly | LCM | 28.42 | AA+0.73s to AAA | 2026-06-28 | 2026 Bulldog Grand Slam - copied venue |
| 100 Butterfly | LCM | 1:02.46 | A+0.07s to AA | 2026-06-26 | 2026 Bulldog Grand Slam - copied venue |
| 200 Butterfly | LCM | 2:13.59 | AA+0.40s to AAA | 2026-06-27 | 2026 Bulldog Grand Slam - copied venue |
| 200 Individual Medley | LCM | 2:22.71 | A+0.32s to AA | 2026-06-28 | 2026 Bulldog Grand Slam - copied venue |
| 400 Individual Medley | LCM | 5:10.55 | A+4.86s to AA | 2026-05-30 | 2026 ABSC IMX Knockout Series venue |
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 | 23.06 | flying | 200 Free Relay (leg 3) | 2025-12-05 | 2025 GA SC Senior State Championships - copie |
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 17-18 · SCY
4262 points (6/6 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:03.13 | 725 |
| 200 BK SCY | 2:11.59 | 551 |
| 200 BR SCY | 2:16.08 | 715 |
| 200 FL SCY | 1:56.81 | 830 |
| 200 IM SCY | 2:02.95 | 727 |
| 400 IM SCY | 4:26.19 | 714 |
IMR 17-18 · LCM
3359 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:14.73 | 616 |
| 100 BK LCM | 1:06.96 | 656 |
| 100 BR LCM | 1:15.94 | 629 |
| 100 FL LCM | 1:02.46 | 720 |
| 200 IM LCM | 2:22.71 | 738 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 53.52
Front half 26.14s · back half 27.38s
500 Freestyle SCY 5:03.13
Front half 146.78s · back half 156.35s
100 Backstroke SCY 1:00.68
Front half 29.69s · back half 30.99s
200 Backstroke SCY 2:11.59
Front half 63.82s · back half 67.77s
100 Breaststroke SCY 1:08.17
Front half 32.38s · back half 35.79s
200 Breaststroke SCY 2:16.08
Front half 64.64s · back half 71.44s
100 Butterfly SCY 51.62
Front half 24.14s · back half 27.48s
200 Butterfly SCY 1:56.81
Front half 55.72s · back half 61.09s
100 Individual Medley SCY 58.11
Front half 26.92s · back half 31.19s
200 Individual Medley SCY 2:02.95
Front half 57.81s · back half 65.14s
400 Individual Medley SCY 4:26.19
Front half 126.48s · back half 139.71s
100 Freestyle LCM 57.55
Front half 27.67s · back half 29.88s
200 Freestyle LCM 2:14.73
Front half 64.16s · back half 70.57s
400 Freestyle LCM 4:43.66
Front half 141.19s · back half 142.47s
800 Freestyle LCM 9:45.37
Front half 289.21s · back half 296.16s
100 Backstroke LCM 1:06.96
Front half 32.41s · back half 34.55s
100 Breaststroke LCM 1:15.94
Front half 35.80s · back half 40.14s
200 Breaststroke LCM 2:45.83
Front half 79.28s · back half 86.55s
100 Butterfly LCM 1:02.46
Front half 29.28s · back half 33.18s
200 Butterfly LCM 2:13.59
Front half 62.46s · back half 71.13s
200 Individual Medley LCM 2:22.71
Front half 67.87s · back half 74.84s
400 Individual Medley LCM 5:10.55
Front half 146.10s · back half 164.45s
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.