swimJonah Starck
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 26.69 | B+0.30s to BB | 2026-03-13 | 2026 Speedo Maryland Junior Championship - Si venue |
| 100 Freestyle | SCY | 58.16 | B+0.27s to BB | 2025-10-03 | 2025 ASC All Freestyle Meet |
| 200 Freestyle | SCY | 2:05.06 | BB+8.27s to A | 2026-03-13 | 2026 Speedo Maryland Junior Championship - Si |
| 500 Freestyle | SCY | 5:31.93 | BB+14.44s to A | 2026-03-13 | 2026 Speedo Maryland Junior Championship - Si venue |
| 1000 Freestyle | SCY | 11:53.54 | BB+51.95s to A | 2025-10-03 | 2025 ASC All Freestyle Meet |
| 1650 Freestyle | SCY | 19:29.97 | BB+67.18s to A | 2025-10-25 | 2025 FAST Fall Sprint and Distance slow pool |
| 50 Backstroke | SCY | 32.78 | +0.99s to B | 2026-03-21 | 2026 MD LSC / NBAC 11 & Over Championships |
| 100 Backstroke | SCY | 1:07.42 | B+4.53s to BB | 2026-02-14 | 2026 MAC Fabulous February 'B' & Mini Meet |
| 200 Backstroke | SCY | 2:25.00 | B+7.11s to BB | 2025-02-15 | 2025 MAC Fabulous February 'B' & Mini Meet |
| 50 Breaststroke | SCY | 32.50 | BB+1.01s to A | 2026-03-13 | 2026 Speedo Maryland Junior Championship - Si |
| 100 Breaststroke | SCY | 1:10.97 | BB+4.98s to A | 2026-03-13 | 2026 Speedo Maryland Junior Championship - Si |
| 200 Breaststroke | SCY | 2:38.46 | B+3.27s to BB | 2023-01-01 | Bel Air Athletic Club |
| 50 Butterfly | SCY | 28.93 | BB+1.74s to A | 2026-03-13 | 2026 Speedo Maryland Junior Championship - Si |
| 100 Butterfly | SCY | 1:07.49 | +0.20s to B | 2026-03-21 | 2026 MD LSC / NBAC 11 & Over Championships |
| 200 Butterfly | SCY | 2:46.56 | +15.87s to B | 2025-02-15 | 2025 MAC Fabulous February 'B' & Mini Meet |
| 100 Individual Medley | SCY | 1:04.77 | 2026-03-13 | 2026 Speedo Maryland Junior Championship - Si | |
| 200 Individual Medley | SCY | 2:20.70 | B+0.21s to BB | 2025-03-22 | 2025 MD LSC / NBAC 11 & Over Championships |
| 400 Individual Medley | SCY | 5:16.39 | B+15.60s to BB | 2024-12-28 | 2024 Speedo IMX Distance Challenge |
| 50 Freestyle | LCM | 30.24 | BB+1.95s to A | 2025-07-25 | 2025 Maryland Long Course Junior Championship venue |
| 100 Freestyle | LCM | 1:06.01 | BB+4.42s to A | 2026-06-08 | Chargers Mid Season Long Course Invitational |
| 200 Freestyle | LCM | 2:22.28 | BB+7.49s to A | 2026-06-08 | Chargers Mid Season Long Course Invitational |
| 400 Freestyle | LCM | 4:56.62 | BB+9.03s to A | 2025-07-25 | 2025 Maryland Long Course Junior Championship |
| 800 Freestyle | LCM | 11:32.81 | B+47.02s to BB | 2024-07-01 | KA Firecracker Classic Long Course A/BB/C Invitational |
| 1500 Freestyle | LCM | 19:36.91 | BB+29.72s to A | 2025-07-18 | 2025 MD Long Course Last Chance Meet venue |
| 50 Backstroke | LCM | 40.42 | +2.53s to B | 2024-07-26 | 2024 Maryland Long Course Junior Championship |
| 50 Breaststroke | LCM | 36.87 | BB+0.98s to A | 2026-06-08 | Chargers Mid Season Long Course Invitational |
| 100 Breaststroke | LCM | 1:25.69 | B+2.20s to BB | 2026-05-29 | 2026 FOX Speedo Summer Spectacular Meet |
| 200 Breaststroke | LCM | 3:10.56 | B+9.17s to BB | 2026-06-08 | Chargers Mid Season Long Course Invitational |
| 50 Butterfly | LCM | 32.59 | BB+1.80s to A | 2025-07-18 | 2025 MD Long Course Last Chance Meet |
| 100 Butterfly | LCM | 1:21.89 | +4.90s to B | 2026-05-29 | 2026 FOX Speedo Summer Spectacular Meet |
| 200 Butterfly | LCM | 3:08.83 | +16.54s to B | 2026-06-08 | Chargers Mid Season Long Course Invitational |
| 200 Individual Medley | LCM | 2:43.94 | B+0.05s to BB | 2025-07-18 | 2025 MD Long Course Last Chance Meet |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 16.
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 | 27.12 | flat | 200 Free Relay | 2026-02-07 | GBSA 2026 Last Chance Qualifying |
| 50 Freestyle | SCY | 16.31 | flying | 200 Free Relay (leg 3) | 2025-12-05 | 2025 NBAC Holiday Invitational |
| 50 Breaststroke | SCY | 33.14 | flying | 200 Medley Relay (leg 2) | 2025-02-09 | GBSA - 2025 Last Chance Qualifying |
| 100 Breaststroke | SCY | 1:18.81 | flying | 400 Medley Relay (leg 2) | 2024-03-10 | 2024 Speedo MD LSC JR Champs - Site 1 |
| 50 Butterfly | SCY | 30.13 | flying | 200 Medley Relay (leg 3) | 2026-03-22 | 2026 MD LSC / NBAC 11 & Over 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 15-16 · SCY
2788 points (6/6 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:31.93 | 576 |
| 200 BK SCY | 2:25.00 | 444 |
| 200 BR SCY | 2:38.46 | 494 |
| 200 FL SCY | 2:46.56 | 309 |
| 200 IM SCY | 2:20.70 | 520 |
| 400 IM SCY | 5:16.39 | 445 |
IMR 15-16 · SCY
2440 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:05.06 | 542 |
| 100 BK SCY | 1:07.42 | 425 |
| 100 BR SCY | 1:10.97 | 537 |
| 100 FL SCY | 1:07.49 | 416 |
| 200 IM SCY | 2:20.70 | 520 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
500 Freestyle SCY 5:31.93
Front half 162.50s · back half 169.43s
1650 Freestyle SCY 19:29.97
200 Breaststroke SCY 2:38.46 split/total mismatch
100 Butterfly SCY 1:07.49
Front half 30.54s · back half 36.95s
100 Freestyle LCM 1:06.01 split/total mismatch
Front half 31.33s · back half 34.68s
200 Freestyle LCM 2:22.28 split/total mismatch
800 Freestyle LCM 11:32.81 split/total mismatch
1500 Freestyle LCM 19:36.91
Front half 587.02s · back half 589.89s
200 Butterfly LCM 3:08.83 split/total mismatch
200 Individual Medley LCM 2:43.94
Front half 78.69s · back half 85.25s
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.