William Dufour
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 20.96 | 2021-11-07 | 2021 BD Del Norte 2 venue | |
| 50 Freestyle | SCY | 25.49 | AAA+0.90s to AAAA | 2026-03-01 | 2026 BD SCY Border Champs venue |
| 100 Freestyle | SCY | 56.65 | AA+0.46s to AAA | 2026-02-28 | 2026 BD SCY Border Champs venue |
| 200 Freestyle | SCY | 2:27.72 | B+2.83s to BB | 2025-01-17 | COM Syntal Winter Invite 2025 |
| 25 Backstroke | SCY | 29.42 | 2021-10-10 | 2021 BD Del Norte 1 | |
| 50 Backstroke | SCY | 31.02 | AA+1.33s to AAA | 2026-02-15 | 2026 BD Arctic BLAST Swim Meet venue |
| 100 Backstroke | SCY | 1:19.21 | B+3.52s to BB | 2025-02-15 | 2025 BD BLST Arctic BLAST Swim Meet venue |
| 200 Backstroke | SCY | 3:05.31 | +12.42s to B | 2024-09-20 | 2024 LCAT Daniel France Memorial PecanClassic |
| 50 Breaststroke | SCY | 37.46 | BB+0.77s to A | 2026-02-27 | 2026 BD SCY Border Champs |
| 100 Breaststroke | SCY | 1:26.24 | B+0.75s to BB | 2026-02-14 | 2026 BD Arctic BLAST Swim Meet venue |
| 50 Butterfly | SCY | 29.24 | AA+1.05s to AAA | 2026-03-01 | 2026 BD SCY Border Champs venue |
| 100 Individual Medley | SCY | 1:07.45 | A+0.46s to AA | 2026-03-01 | 2026 BD SCY Border Champs venue |
| 200 Individual Medley | SCY | 2:30.32 | A+4.73s to AA | 2026-02-13 | 2026 BD Arctic BLAST Swim Meet venue |
| 50 Freestyle | LCM | 29.13 | AAA+1.04s to AAAA | 2026-05-01 | 2026 LCAT Suntan Classic |
| 100 Freestyle | LCM | 1:04.25 | AAA+2.66s to AAAA | 2026-05-01 | 2026 LCAT Suntan Classic |
| 50 Backstroke | LCM | 34.86 | AA+0.47s to AAA | 2026-05-16 | 2026 BD SWAT School's Out Summer Bash |
| 100 Backstroke | LCM | 1:15.63 | AA+1.34s to AAA | 2026-05-16 | 2026 BD SWAT School's Out Summer Bash |
| 50 Breaststroke | LCM | 41.77 | A+1.78s to AA | 2026-06-14 | 2026 BD DSSC Poppas Day fast pool |
| 100 Breaststroke | LCM | 1:34.62 | BB+3.33s to A | 2026-05-16 | 2026 BD SWAT School's Out Summer Bash venue |
| 50 Butterfly | LCM | 33.62 | A+0.03s to AA | 2026-06-14 | 2026 BD DSSC Poppas Day fast pool |
| 100 Butterfly | LCM | 1:20.28 | BB+0.79s to A | 2026-05-16 | 2026 BD SWAT School's Out Summer Bash |
| 200 Individual Medley | LCM | 3:00.10 | BB+5.91s to A | 2025-07-25 | 2025 LCM Border Champs |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 12.
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 | 26.27 | flat | 200 Free Relay | 2026-03-01 | 2026 BD SCY Border Champs |
| 50 Freestyle | SCY | 25.67 | flying | 200 Medley Relay (leg 4) | 2026-02-28 | 2026 BD SCY Border Champs |
| 50 Freestyle | SCY | 29.57 | flying | 200 Free Relay (leg 2) | 2024-12-22 | 2024 BD EPAP Leo Cancellare Invitational |
| 50 Backstroke | SCY | 31.97 | flat | 200 Medley Relay | 2025-10-25 | 2025 BD SWAToberfest Sprintacular |
| 50 Freestyle | LCM | 31.10 | flat | 200 Free Relay | 2025-06-29 | Jack White Memorial Swim Meet |
| 50 Freestyle | LCM | 28.42 | flying | 200 Free Relay (leg 4) | 2026-05-17 | 2026 BD SWAT School's Out Summer Bash |
| 50 Butterfly | LCM | 33.48 | flying | 200 Medley Relay (leg 3) | 2026-05-16 | 2026 BD SWAT School's Out Summer Bash |
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 11-12 · LCM
2573 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK LCM | 1:15.63 | 806 |
| 100 BR LCM | 1:34.62 | 581 |
| 100 FL LCM | 1:20.28 | 602 |
| 200 IM LCM | 3:00.10 | 584 |
| 400 FR LCM | — | 0 |
IMR 11-12 · SCY
3342 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:27.72 | 496 |
| 50 BK SCY | 31.02 | 750 |
| 50 BR SCY | 37.46 | 594 |
| 50 FL SCY | 29.24 | 760 |
| 100 IM SCY | 1:07.45 | 742 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 56.65
Front half 27.55s · back half 29.10s
100 Breaststroke SCY 1:26.24
Front half 42.39s · back half 43.85s
100 Individual Medley SCY 1:07.45
Front half 31.36s · back half 36.09s
200 Individual Medley SCY 2:30.32
Front half 71.80s · back half 78.52s
100 Freestyle LCM 1:04.25
Front half 31.06s · back half 33.19s
100 Breaststroke LCM 1:34.62
Front half 44.44s · back half 50.18s
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.