swimMason Duffy
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 23.15 | A+0.06s to AA | 2026-01-16 | 2026 PN VAST 49th Annual Washington Open- APP venue |
| 100 Freestyle | SCY | 45.79 | AAAA | 2026-03-12 | 2026 Bellevue Club Premier Invite- Approved |
| 200 Freestyle | SCY | 1:46.66 | AA+0.27s to AAA | 2025-11-23 | 2025 PN Nov. AGI, Division 2 (SMAC) |
| 500 Freestyle | SCY | 5:09.22 | A+7.53s to AA | 2025-03-08 | 2025 PN PDST March Pentathlon and Last Chance |
| 50 Backstroke | SCY | 25.32 | AA+0.73s to AAA | 2026-01-15 | 2026 PN VAST 49th Annual Washington Open- APP |
| 100 Backstroke | SCY | 53.70 | AA+1.21s to AAA | 2026-02-08 | 2026 (WIAA) Metro(SeaKing District Il) BoysOB venue |
| 200 Backstroke | SCY | 2:00.67 | A+0.68s to AA | 2025-11-22 | 2025 PN Nov. AGI, Division 2 (SMAC) venue |
| 50 Breaststroke | SCY | 28.75 | AA+0.46s to AAA | 2025-10-22 | 1657244 |
| 100 Breaststroke | SCY | 1:02.23 | A+0.14s to AA | 2024-11-25 | 2024 PN November AGI, Division 2 |
| 200 Breaststroke | SCY | 2:23.94 | BB+3.15s to A | 2026-01-18 | 2026 PN VAST 49th Annual Washington Open- APP venue |
| 50 Butterfly | SCY | 2:14.14 | +102.95s to B | 2024-01-27 | 2024 PN SMAC IMX/IMR Invitational |
| 100 Butterfly | SCY | 52.69 | AA+0.70s to AAA | 2026-02-21 | 2026 WIAA 3A Boys HS State Champs- OB venue |
| 200 Butterfly | SCY | 2:04.99 | A+2.80s to AA | 2025-10-18 | 2025 PN VAST Fall Classic venue |
| 200 Individual Medley | SCY | 2:01.23 | AA+3.74s to AAA | 2026-01-16 | 2026 PN VAST 49th Annual Washington Open- APP venue |
| 400 Individual Medley | SCY | 4:29.08 | A+4.59s to AA | 2026-02-27 | 2026 PN February AGI, Div 1-Approved fast pool |
| 50 Freestyle | LCM | 26.32 | AA+0.83s to AAA | 2025-07-18 | 2025 PN 13&O LC Senior Championships venue |
| 100 Freestyle | LCM | 57.55 | AA+1.96s to AAA | 2025-05-31 | 2025 PN VAST Summer Sprints and Distance Chal venue |
| 200 Freestyle | LCM | 2:12.91 | A+5.22s to AA | 2025-06-01 | 2025 PN VAST Summer Sprints and Distance Chal venue |
| 400 Freestyle | LCM | 5:11.14 | B+3.25s to BB | 2026-04-24 | 2026 PN SMAC Spring Showers LC Challenge venue |
| 50 Backstroke | LCM | 29.29 | AAA+1.30s to AAAA | 2025-07-19 | 2025 PN 13&O LC Senior Championships venue |
| 100 Backstroke | LCM | 1:03.70 | AA+1.81s to AAA | 2025-07-18 | 2025 PN 13&O LC Senior Championships venue |
| 200 Backstroke | LCM | 2:22.57 | A+1.58s to AA | 2025-07-20 | 2025 PN 13&O LC Senior Championships venue |
| 50 Breaststroke | LCM | 31.75 | AAA+1.06s to AAAA | 2025-07-17 | 2025 PN 13&O LC Senior Championships |
| 100 Breaststroke | LCM | 1:24.10 | B+2.31s to BB | 2023-04-28 | 2023 PN SSCD Dick LaFave Classic |
| 200 Breaststroke | LCM | 2:59.81 | B+1.32s to BB | 2026-06-07 | 2026 PN VAST Summer Sprint & Dist. - Approved venue |
| 50 Butterfly | LCM | 27.30 | AAA+0.91s to AAAA | 2026-06-30 | 2026 PN SMAC Summer Classic Invite- Approved venue |
| 100 Butterfly | LCM | 57.87 | AAA+0.88s to AAAA | 2025-07-17 | 2025 PN 13&O LC Senior Championships |
| 200 Individual Medley | LCM | 2:12.40 | AAA+2.41s to AAAA | 2026-04-27 | 2026 PN SMAC Spring Showers LC Challenge |
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 | 23.29 | flying | 200 Free Relay (leg 2) | 2026-02-14 | 2026 (WIAA) Sea-King Dist II 3A Boys H.S. -OB |
| 50 Freestyle | SCY | 23.44 | flying | 200 Medley Relay (leg 4) | 2025-02-22 | 2025 3A Boys State Swim/Dive Champs |
| 100 Freestyle | SCY | 50.33 | flat | 400 Free Relay | 2026-02-08 | 2026 (WIAA) Metro(SeaKing District Il) BoysOB |
| 100 Freestyle | SCY | 49.00 | flying | 400 Free Relay (leg 2) | 2026-02-21 | 2026 WIAA 3A Boys HS State Champs- OB |
| 50 Backstroke | SCY | 24.79 | flat | 200 Medley Relay | 2026-02-08 | 2026 (WIAA) Metro(SeaKing District Il) BoysOB |
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
4128 points (6/6 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:09.22 | 683 |
| 200 BK SCY | 2:00.67 | 714 |
| 200 BR SCY | 2:23.94 | 604 |
| 200 FL SCY | 2:04.99 | 677 |
| 200 IM SCY | 2:01.23 | 759 |
| 400 IM SCY | 4:29.08 | 691 |
IMR 17-18 · SCY
3877 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:46.66 | 828 |
| 100 BK SCY | 53.70 | 754 |
| 100 BR SCY | 1:02.23 | 728 |
| 100 FL SCY | 52.69 | 808 |
| 200 IM SCY | 2:01.23 | 759 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
200 Freestyle SCY 1:46.66
100 Backstroke SCY 53.70
Front half 26.22s · back half 27.48s
200 Backstroke SCY 2:00.67
Front half 59.08s · back half 61.59s
100 Breaststroke SCY 1:02.23
200 Breaststroke SCY 2:23.94 RT 0.74s
Front half 70.56s · back half 73.38s
100 Butterfly SCY 52.69 RT 0.70s
Front half 24.33s · back half 28.36s
200 Butterfly SCY 2:04.99 RT 0.74s
Front half 59.57s · back half 65.42s
200 Individual Medley SCY 2:01.23 RT 0.70s
Front half 55.94s · back half 65.29s
400 Individual Medley SCY 4:29.08
Front half 133.53s · back half 135.55s
200 Freestyle LCM 2:12.91 RT 0.74s
Front half 62.94s · back half 69.97s
400 Freestyle LCM 5:11.14 RT 0.72s
Front half 154.70s · back half 156.44s
200 Backstroke LCM 2:22.57 RT 0.70s
Front half 68.88s · back half 73.69s
200 Breaststroke LCM 2:59.81 RT 0.75s· 13.3 min after 200 Backstroke
Front half 86.58s · back half 93.23s
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.