swimMarcus Seifert
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | LCM | 25.34 | AA+0.25s to AAA | 2025-06-27 | 2025 CIA Beat the Heat venue |
| 100 Freestyle | LCM | 59.50 | A+1.81s to AA | 2025-06-28 | 2025 CIA Beat the Heat venue |
| 200 Freestyle | LCM | 2:12.91 | BB+1.32s to A | 2025-06-29 | 2025 CIA Beat the Heat venue |
| 50 Backstroke | LCM | 30.15 | AA+0.86s to AAA | 2025-06-27 | 2025 CIA Beat the Heat venue |
| 100 Backstroke | LCM | 1:08.11 | BB+1.12s to A | 2025-06-28 | 2025 CIA Beat the Heat venue |
| 50 Breaststroke | LCM | 34.98 | A+1.29s to AA | 2025-06-27 | 2025 CIA Beat the Heat venue |
| 50 Butterfly | LCM | 27.27 | AAA+1.18s to AAAA | 2025-06-27 | 2025 CIA Beat the Heat venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 18.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 100 Freestyle | LCM | 1:00.35 | flying | 400 Medley Relay (leg 4) | 2025-06-28 | 2025 CIA Beat the Heat |
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
IMR 17-18 · LCM
1265 points (2/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:12.91 | 642 |
| 100 BK LCM | 1:08.11 | 623 |
| 100 BR LCM | — | 0 |
| 100 FL LCM | — | 0 |
| 200 IM LCM | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle LCM 59.50
Front half 28.67s · back half 30.83s
200 Freestyle LCM 2:12.91
Front half 63.55s · back half 69.36s
100 Backstroke LCM 1:08.11
Front half 33.61s · back half 34.50s
Progression
Faster times are higher. One card per event, all courses & history.