swimJon Osa
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | LCM | 23.63 | Futures ✓+0.34s to US Open | 2023-07-13 | 2023 OH CZ East Speedo Sectionalsfast pool |
| 100 Freestyle | LCM | 52.04 | Sectionals ✓+0.05s to Futures | 2023-07-16 | 2023 OH CZ East Speedo Sectionalsfast pool |
| 50 Backstroke | LCM | 26.56 | Futures ✓+0.47s to US Open | 2023-07-14 | 2023 OH CZ East Speedo Sectionalsfast pool |
| 100 Backstroke | LCM | 56.69 | US Open ✓+1.00s to Nationals | 2023-07-15 | 2023 OH CZ East Speedo Sectionalsfast pool |
| 200 Backstroke | LCM | 2:08.88 | Sectionals ✓+1.89s to Futures | 2023-07-13 | 2023 OH CZ East Speedo Sectionalsfast 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 Freestyle LCM 52.04
Front half 24.74s · back half 27.30s
100 Backstroke LCM 56.69
Front half 27.35s · back half 29.34s
200 Backstroke LCM 2:08.88
Front half 61.35s · back half 67.53s
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.