swimMarcus Liu
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 34.18 | +1.39s to B·+11.79s to Sectionals | 2025-11-09 | 2025 ST TXLA 11&O November Unclassified Invit venue |
| 50 Backstroke | SCY | 34.02 | BB+1.33s to A·+10.33s to Futures | 2025-11-09 | 2025 ST TXLA 11&O November Unclassified Invit venue |
| 100 Backstroke | SCY | 1:15.13 | BB+5.84s to A·+20.64s to Sectionals | 2026-01-17 | 2026 ST AQTX B Champs North venue |
| 200 Backstroke | SCY | 2:51.23 | B+10.74s to BB·+52.64s to Sectionals | 2025-09-21 | 2025 ST WLOO SC Season Starter slow pool |
| 50 Breaststroke | SCY | 57.85 | +14.36s to B·+31.56s to Futures | 2024-09-22 | 2024 ST WLOO Short Course Kick Off slow pool |
| 50 Freestyle | LCM | 44.89 | +7.50s to B·+19.40s to Sectionals | 2025-04-27 | 2025 ST WLOO Waterloo Classic venue |
| 50 Backstroke | LCM | 39.38 | BB+1.59s to A·+11.49s to Futures | 2026-06-26 | 2026 NEAT Long Course STX Championship venue |
| 100 Backstroke | LCM | 1:26.14 | BB+4.25s to A·+24.15s to Sectionals | 2026-06-14 | 2026 ST WLOO Last Chance venue |
| 200 Backstroke | LCM | 3:03.28 | BB+9.29s to A·+48.49s to Sectionals | 2026-06-28 | 2026 NEAT Long Course STX Championship venue |
| 100 Breaststroke | LCM | 2:06.34 | +18.55s to B·+56.65s to Sectionals | 2025-05-11 | 2025 ST TXLA 11&O End of School Splash venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 12.
National cuts (Sectionals → Nationals) are the current-season meet qualifying times for the swimmer's zone and age group; ✓ marks the hardest cut already achieved.
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.
IMX / IMR
IMX 11-12 · LCM
789 points (2/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK LCM | 1:26.14 | 545 |
| 100 BR LCM | 2:06.34 | 244 |
| 400 FR LCM | — | 0 |
| 100 FL LCM | — | 0 |
| 200 IM LCM | — | 0 |
IMR 11-12 · SCY
729 points (2/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 50 BK SCY | 34.02 | 568 |
| 50 BR SCY | 57.85 | 161 |
| 200 FR SCY | — | 0 |
| 50 FL SCY | — | 0 |
| 100 IM SCY | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
200 Backstroke LCM 3:03.28
Front half 89.10s · back half 94.18s
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.