swimMarcus Witkowski
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 22.04 | AAA+0.95s to AAAA | 2026-03-05 | 2026 SC Illinois Senior Championships - copi venue |
| 100 Freestyle | SCY | 48.88 | AA+0.59s to AAA | 2026-03-05 | 2026 SC Illinois Senior Championships - copi venue |
| 50 Backstroke | SCY | 24.09 | AAA+0.70s to AAAA | 2025-03-07 | 2025 SC Illinois Senior Championships venue |
| 100 Backstroke | SCY | 50.19 | AAA+0.10s to AAAA | 2025-03-08 | 2025 SC Illinois Senior Championships venue |
| 200 Backstroke | SCY | 1:51.25 | AAA+1.66s to AAAA | 2026-03-08 | 2026 SC Illinois Senior Championships - copi venue |
| 100 Butterfly | SCY | 50.45 | AAA+0.86s to AAAA | 2025-01-01 | 2025 Speedo Winter Junior Championships - West |
| 50 Freestyle | LCM | 26.34 | AA+0.85s to AAA | 2025-01-01 | '25 Duel in the Pool |
| 100 Freestyle | LCM | 1:00.54 | A+2.45s to AA | 2025-06-08 | 2025 Lisa Coole Memorial Classic venue |
| 50 Backstroke | LCM | 27.47 | AAAA | 2025-08-01 | 2025 LC Illinois Senior Championships venue |
| 100 Backstroke | LCM | 58.36 | AAAA | 2025-07-24 | 2025 TYR FUTURES MADISON venue |
| 200 Backstroke | LCM | 2:10.59 | AAA+1.90s to AAAA | 2025-07-26 | 2025 TYR FUTURES MADISON venue |
| 100 Breaststroke | LCM | 1:20.02 | BB+4.53s to A | 2024-06-30 | 2024 Last Dance Open venue |
| 100 Butterfly | LCM | 1:00.18 | AA+0.49s to AAA | 2025-08-01 | 2025 LC Illinois Senior Championships venue |
| 200 Butterfly | LCM | 2:35.25 | BB+9.86s to A | 2024-06-29 | 2024 Last Dance Open venue |
| 200 Individual Medley | LCM | 2:23.40 | A+1.01s to AA | 2025-05-31 | 2025 BAC Jack Pettinger Invitational venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 17.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 100 Backstroke | SCY | 51.89 | flat | 400 Medley Relay | 2026-03-07 | 2026 SC Illinois Senior Championships - copi |
| 50 Backstroke | LCM | 28.43 | flat | 200 Medley Relay | 2025-08-03 | 2025 LC Illinois Senior Championships |
| 100 Backstroke | LCM | 1:00.79 | flat | 400 Medley Relay | 2025-08-02 | 2025 LC Illinois 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 · LCM
2169 points (3/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 BK LCM | 2:10.59 | 917 |
| 200 FL LCM | 2:35.25 | 525 |
| 200 IM LCM | 2:23.40 | 727 |
| 400 FR LCM | — | 0 |
| 200 BR LCM | — | 0 |
| 400 IM LCM | — | 0 |
IMR 17-18 · LCM
3061 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK LCM | 58.36 | 991 |
| 100 BR LCM | 1:20.02 | 538 |
| 100 FL LCM | 1:00.18 | 805 |
| 200 IM LCM | 2:23.40 | 727 |
| 200 FR 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 SCY 48.88
Front half 23.26s · back half 25.62s
100 Backstroke SCY 50.19
Front half 24.48s · back half 25.71s
200 Backstroke SCY 1:51.25
Front half 53.12s · back half 58.13s
100 Freestyle LCM 1:00.54
Front half 28.49s · back half 32.05s
100 Backstroke LCM 58.36
Front half 28.50s · back half 29.86s
200 Backstroke LCM 2:10.59
Front half 63.25s · back half 67.34s
100 Butterfly LCM 1:00.18 RT 0.65s
Front half 28.29s · back half 31.89s
200 Butterfly LCM 2:35.25
Front half 71.13s · back half 84.12s
200 Individual Medley LCM 2:23.40
Front half 66.44s · back half 76.96s
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.