swimJonathan Dong
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 23.40 | +0.11s to Sectionals | 2024-04-06 | 2024 Western Zone SCY Senior Zones fast pool |
| 100 Freestyle | SCY | 50.50 | +0.81s to Sectionals | 2024-04-05 | 2024 Western Zone SCY Senior Zones fast pool |
| 200 Freestyle | SCY | 1:51.55 | +1.86s to Sectionals | 2024-04-04 | 2024 Western Zone SCY Senior Zones fast pool |
| 100 Backstroke | SCY | 54.94 | Sectionals ✓+6.35s to Futures | 2025-03-08 | 2025 SC Illinois Senior Championships venue |
| 200 Backstroke | SCY | 1:57.49 | Sectionals ✓+11.00s to Futures | 2025-03-09 | 2025 SC Illinois Senior Championships venue |
| 200 Individual Medley | SCY | 2:07.05 | +4.16s to Sectionals | 2024-04-05 | 2024 Western Zone SCY Senior Zones fast pool |
| 50 Freestyle | LCM | 26.22 | Sectionals ✓+2.43s to Futures | 2024-08-03 | GroupA - WZ LCM Senior Champs 2024 venue |
| 100 Freestyle | LCM | 57.62 | Sectionals ✓+5.63s to Futures | 2024-07-31 | GroupA - WZ LCM Senior Champs 2024 venue |
| 100 Backstroke | LCM | 1:04.54 | Sectionals ✓+6.35s to Futures | 2024-08-02 | GroupA - WZ LCM Senior Champs 2024 venue |
| 200 Backstroke | LCM | 2:17.63 | Sectionals ✓+10.64s to Futures | 2024-08-01 | WZ LCM Senior Champs 2024 venue |
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.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Freestyle | LCM | 25.20 | flying | 200 Medley Relay (leg 4) | 2024-07-30 | GroupA - WZ LCM Senior Champs 2024 |
| 100 Backstroke | LCM | 1:03.25 | flat | 400 Medley Relay | 2024-08-03 | GroupA - WZ LCM Senior Champs 2024 |
Reconstructed from relay split marks. Flat = lead-off (comparable to individual times); flying starts run ~0.5–0.7s fast and are not PRs.
PR splits
100 Freestyle SCY 50.50
Front half 24.00s · back half 26.50s
200 Freestyle SCY 1:51.55
Front half 52.92s · back half 58.63s
100 Backstroke SCY 54.94
Front half 26.30s · back half 28.64s
200 Backstroke SCY 1:57.49
Front half 57.05s · back half 60.44s
200 Individual Medley SCY 2:07.05
Front half 60.60s · back half 66.45s
100 Freestyle LCM 57.62
Front half 26.53s · back half 31.09s
100 Backstroke LCM 1:04.54
Front half 31.32s · back half 33.22s
200 Backstroke LCM 2:17.63
Front half 66.05s · back half 71.58s
Progression
Faster times are higher. One card per event, all courses & history.