William Petersen
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 26.17 | +2.98s to Sectionals | 2024-10-05 | WSC Short Axis Swim Meetvenue |
| 100 Freestyle | SCY | 58.92 | +7.93s to Sectionals | 2024-10-05 | WSC Short Axis Swim Meetvenue |
| 200 Freestyle | SCY | 2:13.32 | +21.53s to Sectionals | 2024-11-23 | 2024 MAC Thanksgiving Invitationalvenue |
| 500 Freestyle | SCY | 6:08.16 | +65.47s to Sectionals | 2024-11-22 | 2024 MAC Thanksgiving Invitationalvenue |
| 50 Butterfly | SCY | 27.51 | +6.32s to US Open | 2024-10-05 | WSC Short Axis Swim Meetvenue |
| 100 Butterfly | SCY | 1:02.64 | +7.45s to Sectionals | 2025-02-14 | 6A State OBSfast pool |
| 50 Freestyle | LCM | 29.62 | +2.63s to Sectionals | 2024-04-12 | WFFM LC Kickoff 2024venue |
| 100 Freestyle | LCM | 1:09.82 | +10.83s to Sectionals | 2024-04-13 | WFFM LC Kickoff 2024venue |
| 200 Freestyle | LCM | 2:37.91 | +29.22s to Sectionals | 2024-06-22 | Water Dragon Openvenue |
| 400 Freestyle | LCM | 5:42.06 | +67.67s to Sectionals | 2024-04-12 | WFFM LC Kickoff 2024venue |
| 50 Breaststroke | LCM | 47.54 | +18.35s to US Open | 2024-06-21 | Water Dragon Openvenue |
National cuts (Sectionals → Nationals) are the current-season meet qualifying times for the swimmer's zone and age group; ✓ marks the hardest cut already achieved.
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 Backstroke | SCY | 32.53 | flat | 200 Medley Relay | 2024-10-05 | WSC Short Axis Swim Meet |
Reconstructed from relay split marks. Flat = lead-off (comparable to individual times); flying starts run ~0.5–0.7s fast and are not PRs.
PR splits
100 Freestyle SCY 58.92
Front half 27.68s · back half 31.24s
200 Freestyle SCY 2:13.32
Front half 60.52s · back half 72.80s
500 Freestyle SCY 6:08.16
Front half 174.92s · back half 193.24s
100 Butterfly SCY 1:02.64 RT 0.70s
Front half 27.54s · back half 35.10s
100 Freestyle LCM 1:09.82
Front half 32.37s · back half 37.45s
200 Freestyle LCM 2:37.91
Front half 74.16s · back half 83.75s
400 Freestyle LCM 5:42.06
Front half 168.66s · back half 173.40s
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.
Swim history
Every recorded swim, newest first
| Date | Event | Course | Time | Age | Round | Meet |
|---|
Individual swims with a recorded date and time — including disqualifications — plus reconstructed relay legs (marked). Assembled in the browser from this page’s data.
Progression
Faster times are higher. One card per event, all courses & history.