swimMackenzie Marzen
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Backstroke | SCY | 40.33 | +15.14s to Futures | 2026-03-21 | 2026 RMSC Spring Finalefast pool |
| 100 Backstroke | SCY | 1:34.15 | +34.86s to Sectionals | 2025-11-16 | 2025 RMSC November Dual Meetvenue |
| 50 Breaststroke | SCY | 50.58 | +21.79s to Futures | 2026-03-21 | 2026 RMSC Spring Finalefast pool |
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.
PR splits
100 Backstroke SCY 1:34.15
Front half 45.20s · back half 48.95s
Swim history
Every recorded swim, newest first
| Date | Event | Course | Time | Age | Round | Meet |
|---|
Individual swims with a recorded date and time — including disqualifications — plus reconstructed relay legs (marked). Assembled in the browser from this page’s data.
Progression
Faster times are higher. One card per event, all courses & history.