swimJonathan Dong
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 22.86 | +0.27s to Sectionals | 2026-07-11 | Redwood Empire Swim League Championshipvenue |
| 100 Freestyle | SCY | 49.87 | +0.88s to Sectionals | 2026-07-12 | Redwood Empire Swim League Championshipvenue |
| 200 Freestyle | SCY | 1:51.55 | +4.06s to Sectionals | 2024-04-04 | 2024 Western Zone SCY Senior Zonesfast pool |
| 50 Backstroke | SCY | 26.17 | +1.68s to Sectionals | 2026-07-10 | Redwood Empire Swim League Championshipvenue |
| 100 Backstroke | SCY | 54.51 | Sectionals ✓+5.92s to Futures | 2026-07-12 | Redwood Empire Swim League Championshipvenue |
| 200 Backstroke | SCY | 1:57.49 | Sectionals ✓+11.00s to Futures | 2025-03-09 | 2025 SC Illinois Senior Championshipsvenue |
| 50 Breaststroke | SCY | 28.32 | +1.13s to Sectionals | 2026-07-10 | Redwood Empire Swim League Championshipvenue |
| 100 Butterfly | SCY | 57.48 | +3.49s to Sectionals | 2026-07-11 | Redwood Empire Swim League Championshipvenue |
| 200 Individual Medley | SCY | 2:07.05 | +6.06s to Sectionals | 2024-04-05 | 2024 Western Zone SCY Senior Zonesfast pool |
| 50 Freestyle | LCM | 26.09 | +0.10s to Sectionals | 2026-08-01 | Long Course Far Westernsvenue |
| 100 Freestyle | LCM | 57.62 | +1.03s to Sectionals | 2024-07-31 | WZ LCM Senior Champs 2024venue |
| 50 Backstroke | LCM | 29.78 | +1.09s to Sectionals | 2026-08-02 | Long Course Far Westernsvenue |
| 100 Backstroke | LCM | 1:04.54 | +0.15s to Sectionals | 2024-08-02 | GroupA - WZ LCM Senior Champs 2024venue |
| 200 Backstroke | LCM | 2:17.63 | Sectionals ✓+10.64s to Futures | 2024-08-01 | GroupA - WZ LCM Senior Champs 2024venue |
| 50 Breaststroke | LCM | 32.98 | +0.99s to Sectionals | 2026-07-31 | Long Course Far Westernsvenue |
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 Backstroke | SCY | 25.64 | flat | 200 Medley Relay | 2026-07-11 | Redwood Empire Swim League Championship |
| 50 Freestyle | LCM | 25.38 | flying | 200 Free Relay (leg 2) | 2024-08-01 | GroupA - WZ LCM Senior Champs 2024 |
| 50 Freestyle | LCM | 25.20 | flying | 200 Medley Relay (leg 4) | 2024-07-30 | GroupA - WZ LCM Senior Champs 2024 |
| 100 Freestyle | LCM | 56.60 | flying | 400 Free Relay (leg 3) | 2024-08-02 | GroupA - WZ LCM Senior Champs 2024 |
| 200 Freestyle | LCM | 2:09.39 | flying | 800 Free Relay (leg 2) | 2024-07-31 | 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 49.87
Front half 23.70s · back half 26.17s
200 Freestyle SCY 1:51.55
Front half 52.92s · back half 58.63s
100 Backstroke SCY 54.51
Front half 26.44s · back half 28.07s
200 Backstroke SCY 1:57.49
Front half 57.05s · back half 60.44s
100 Butterfly SCY 57.48
Front half 25.65s · back half 31.83s
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
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.