swimNathan Petchdenlarp
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 22.72 | A+0.03s to AA | 2024-12-21 | 2024 WA State Senior Short Course Champs venue |
| 100 Freestyle | SCY | 51.04 | A+1.15s to AA | 2025-11-23 | 2025 PN Nov. AGI, Division 2 (SMAC) venue |
| 200 Freestyle | SCY | 1:47.72 | AA+2.33s to AAA | 2025-11-23 | 2025 PN Nov. AGI, Division 2 (SMAC) |
| 500 Freestyle | SCY | 5:01.20 | A+1.51s to AA | 2025-02-08 | 2025 KingCo Conference Boys H.S. Champs venue |
| 50 Backstroke | SCY | 27.33 | BB+0.84s to A | 2025-06-13 | 2025 PN Pro June Summer Intrasquad venue |
| 100 Backstroke | SCY | 58.01 | BB+1.82s to A | 2025-06-15 | 2025 PN Pro June Summer Intrasquad venue |
| 200 Backstroke | SCY | 2:01.62 | A+3.03s to AA | 2025-11-23 | 2025 PN Nov. AGI, Division 2 (SMAC) |
| 50 Breaststroke | SCY | 27.90 | AAA+1.21s to AAAA | 2024-12-22 | 2024 WA State Senior Short Course Champs venue |
| 100 Breaststroke | SCY | 59.89 | AA+1.00s to AAA | 2025-02-22 | 2025 4A Boys State Swim/Dive Champs venue |
| 200 Breaststroke | SCY | 2:07.61 | AAA+5.42s to AAAA | 2024-12-21 | 2024 WA State Senior Short Course Champs venue |
| 50 Butterfly | SCY | 26.06 | A+0.67s to AA | 2024-01-14 | 2024 PN VAST 47th Annual Washington Open venue |
| 100 Butterfly | SCY | 56.77 | BB+0.58s to A | 2025-10-04 | 2025 PN SMAC Fall Kick-Off Invitational venue |
| 200 Butterfly | SCY | 2:07.99 | BB+1.50s to A | 2024-03-01 | 2024 PN PRO March Last Chance Intrasquad slow pool |
| 200 Individual Medley | SCY | 1:59.70 | AA+3.51s to AAA | 2025-02-22 | 2025 4A Boys State Swim/Dive Champs venue |
| 400 Individual Medley | SCY | 4:04.33 | AAA+4.94s to AAAA | 2025-10-22 | 1657244 |
| 50 Freestyle | LCM | 26.69 | A+0.40s to AA | 2025-05-17 | 2025 PN IST Sockeye Springtime Madness venue |
| 100 Freestyle | LCM | 58.51 | A+0.82s to AA | 2024-07-21 | 2024 PN LC Senior Championships venue |
| 50 Backstroke | LCM | 31.29 | A+0.70s to AA | 2025-05-31 | 2025 PN VAST Summer Sprints and Distance Chal venue |
| 50 Breaststroke | LCM | 31.92 | AAA+1.23s to AAAA | 2024-04-28 | 2024 PN SSCD Dick LaFave Classic venue |
| 100 Breaststroke | LCM | 1:09.02 | AA+0.63s to AAA | 2024-03-16 | 2024 Northwest Spring Speedo Sectionals venue |
| 200 Breaststroke | LCM | 2:30.91 | AA+1.22s to AAA | 2024-03-14 | 2024 Northwest Spring Speedo Sectionals venue |
| 50 Butterfly | LCM | 28.63 | A+0.04s to AA | 2024-06-01 | 2024 PN VAST Summer Sprints and Distance Chal venue |
| 100 Butterfly | LCM | 1:11.86 | B+2.17s to BB | 2021-08-05 | 2021 Western Zone Age Group Championships venue |
| 200 Individual Medley | LCM | 2:16.37 | AA+0.68s to AAA | 2025-07-17 | 2025 PN 13&O LC Senior Championships |
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.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Freestyle | SCY | 23.38 | flat | 200 Free Relay | 2024-12-20 | 2024 WA State Senior Short Course Champs |
| 50 Freestyle | SCY | 22.11 | flying | 200 Free Relay (leg 3) | 2025-02-22 | 2025 4A Boys State Swim/Dive Champs |
| 100 Freestyle | SCY | 50.60 | flying | 400 Free Relay (leg 2) | 2025-02-08 | 2025 KingCo Conference Boys H.S. Champs |
| 50 Breaststroke | SCY | 28.12 | flying | 200 Medley Relay (leg 2) | 2023-03-31 | 2023 Western Zone SCY Senior Zones |
| 100 Breaststroke | SCY | 1:00.76 | flying | 400 Medley Relay (leg 2) | 2025-12-19 | 2025 WA State Senior SC Champs- APPROVED |
| 50 Freestyle | LCM | 26.28 | flying | 200 Free Relay (leg 3) | 2025-07-18 | 2025 PN 13&O LC Senior Championships |
| 200 Freestyle | LCM | 2:03.68 | flying | 800 Free Relay (leg 3) | 2024-03-16 | 2024 Northwest Spring Speedo Sectionals |
| 50 Breaststroke | LCM | 31.22 | flying | 200 Medley Relay (leg 2) | 2024-03-14 | 2024 Northwest Spring Speedo Sectionals |
| 100 Breaststroke | LCM | 1:10.46 | flying | 400 Medley Relay (leg 2) | 2025-07-18 | 2025 PN 13&O LC Senior Championships |
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
4647 points (6/6 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:01.20 | 739 |
| 200 BK SCY | 2:01.62 | 698 |
| 200 BR SCY | 2:07.61 | 867 |
| 200 FL SCY | 2:07.99 | 631 |
| 200 IM SCY | 1:59.70 | 788 |
| 400 IM SCY | 4:04.33 | 924 |
IMR 17-18 · SCY
3653 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:47.72 | 804 |
| 100 BK SCY | 58.01 | 598 |
| 100 BR SCY | 59.89 | 817 |
| 100 FL SCY | 56.77 | 646 |
| 200 IM SCY | 1:59.70 | 788 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 51.04
Front half 24.53s · back half 26.51s
200 Freestyle SCY 1:47.72
500 Freestyle SCY 5:01.20
Front half 146.86s · back half 154.34s
200 Backstroke SCY 2:01.62
100 Breaststroke SCY 59.89 RT 0.48s
Front half 28.40s · back half 31.49s
200 Breaststroke SCY 2:07.61
Front half 61.21s · back half 66.40s
100 Butterfly SCY 56.77
Front half 26.77s · back half 30.00s
200 Butterfly SCY 2:07.99
Front half 60.12s · back half 67.87s
200 Individual Medley SCY 1:59.70 RT 0.51s
Front half 57.93s · back half 61.77s
400 Individual Medley SCY 4:04.33 split/total mismatch
200 Breaststroke LCM 2:30.91 RT 0.48s
Front half 72.47s · back half 78.44s
100 Butterfly LCM 1:11.86
Front half 33.30s · back half 38.56s
200 Individual Medley LCM 2:16.37 split/total mismatch
Front half 177.01s · back half -40.64s
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.