swimClayton Marks
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 23.43 | AA+0.74s to AAA | 2026-02-26 | 2026 Iowa Swimming Short Course Championships |
| 100 Freestyle | SCY | 51.83 | AA+2.04s to AAA | 2026-02-26 | 2026 Iowa Swimming Short Course Championships |
| 50 Breaststroke | SCY | 35.80 | B+1.01s to BB | 2025-04-25 | 2025 ACAC Rock the Blocks Sprint Eliminator |
| 100 Breaststroke | SCY | 1:18.26 | B+5.27s to BB | 2025-01-01 | 2025 IA ACAC - The Tundra |
| 200 Breaststroke | SCY | 2:50.33 | B+11.14s to BB | 2025-01-01 | 2025 IA ACAC - The Tundra |
| 50 Butterfly | SCY | 26.51 | AA+1.12s to AAA | 2026-02-26 | 2026 Iowa Swimming Short Course Championships |
| 100 Butterfly | SCY | 1:03.19 | BB+4.30s to A | 2025-01-01 | 2025 IA ACAC - The Tundra |
| 50 Freestyle | LCM | 27.51 | A+0.12s to AA | 2025-01-01 | 1599147 |
| 100 Freestyle | LCM | 1:00.68 | A+0.99s to AA | 2025-01-01 | 1607071 |
| 200 Freestyle | LCM | 2:25.41 | BB+8.22s to A | 2025-06-29 | 2025 CIA Beat the Heat venue |
| 400 Freestyle | LCM | 5:30.70 | B+14.31s to BB | 2025-06-27 | 2025 CIA Beat the Heat venue |
| 100 Backstroke | LCM | 1:14.30 | BB+4.71s to A | 2026-06-26 | 2026 CIA Beat the Heat |
| 50 Breaststroke | LCM | 41.89 | B+2.30s to BB | 2025-06-27 | 2025 CIA Beat the Heat venue |
| 100 Breaststroke | LCM | 1:37.85 | +6.46s to B | 2024-05-19 | 2024 MN HURR LCM Spring Opener slow pool |
| 50 Butterfly | LCM | 30.24 | A+0.25s to AA | 2025-01-01 | 1607071 |
| 100 Butterfly | LCM | 1:07.89 | BB+0.60s to A | 2025-01-01 | 1607071 |
| 200 Individual Medley | LCM | 2:47.86 | B+1.87s to BB | 2025-06-28 | 2025 CIA Beat the Heat venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 15.
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 | LCM | 29.21 | flying | 200 Free Relay (leg 4) | 2024-07-28 | 2024 IA Long Course Championships |
| 100 Freestyle | LCM | 1:08.19 | flying | 400 Free Relay (leg 3) | 2024-07-25 | 2024 IA Long Course Championships |
| 50 Breaststroke | LCM | 42.44 | flying | 200 Medley Relay (leg 2) | 2024-07-26 | 2024 IA Long Course 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 · LCM
922 points (2/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 5:30.70 | 435 |
| 200 IM LCM | 2:47.86 | 487 |
| 200 BK LCM | — | 0 |
| 200 BR LCM | — | 0 |
| 200 FL LCM | — | 0 |
| 400 IM LCM | — | 0 |
IMR 15-16 · LCM
2459 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:25.41 | 527 |
| 100 BK LCM | 1:14.30 | 513 |
| 100 BR LCM | 1:37.85 | 322 |
| 100 FL LCM | 1:07.89 | 610 |
| 200 IM LCM | 2:47.86 | 487 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 51.83 split/total mismatch
Front half 24.75s · back half 27.08s
100 Breaststroke SCY 1:18.26 split/total mismatch
Front half 36.64s · back half 41.62s
200 Breaststroke SCY 2:50.33 split/total mismatch
100 Butterfly SCY 1:03.19 split/total mismatch
Front half 29.48s · back half 33.71s
100 Freestyle LCM 1:00.68 split/total mismatch
Front half 29.14s · back half 31.54s
200 Freestyle LCM 2:25.41
Front half 68.22s · back half 77.19s
400 Freestyle LCM 5:30.70
Front half 159.62s · back half 171.08s
100 Breaststroke LCM 1:37.85
Front half 44.64s · back half 53.21s
100 Butterfly LCM 1:07.89 split/total mismatch
Front half 31.17s · back half 36.72s
200 Individual Medley LCM 2:47.86
Front half 76.89s · back half 90.97s
Progression
Faster times are higher. One card per event, all courses & history.