swimJonathan Liu
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 25.02 | AA+0.63s to AAA | 2025-12-12 | 2025 PN 14&Under Short Course Champs-Approved venue |
| 100 Freestyle | SCY | 51.93 | AAA+1.24s to AAAA | 2025-12-12 | 2025 PN 14&Under Short Course Champs-Approved |
| 200 Freestyle | SCY | 1:55.26 | AAA+4.47s to AAAA | 2026-03-22 | 2026 NW Region Age Group Champs- Approved venue |
| 500 Freestyle | SCY | 5:21.92 | AA+8.63s to AAA | 2026-02-27 | 2026 PN February AGI, Division 2- Approved venue |
| 50 Backstroke | SCY | 29.85 | A+0.76s to AA | 2025-12-13 | 2025 PN 14&Under Short Course Champs-Approved venue |
| 100 Backstroke | SCY | 1:02.66 | A+1.57s to AA | 2026-02-28 | 2026 PN February AGI, Division 2- Approved venue |
| 200 Backstroke | SCY | 2:15.48 | A+2.29s to AA | 2024-11-28 | 1553744 |
| 50 Breaststroke | SCY | 35.05 | BB+0.36s to A | 2025-11-02 | 2025 PN Bob Miller Sprint Distance Classic venue |
| 100 Breaststroke | SCY | 1:17.39 | BB+5.10s to A | 2025-10-05 | 2025 PN Cascade Fall Classic venue |
| 200 Breaststroke | SCY | 2:45.65 | BB+8.86s to A | 2026-01-25 | 2026 PN WAVE Winter Invitational- Approved fast pool |
| 50 Butterfly | SCY | 28.46 | AA+1.17s to AAA | 2025-11-23 | 2025 PN Nov. AGI, Division 2 (SMAC) venue |
| 100 Butterfly | SCY | 55.42 | AAA+0.13s to AAAA | 2026-02-11 | 2026 PN WAVE Winter Invitational- Approved |
| 200 Butterfly | SCY | 2:28.67 | BB+6.98s to A | 2026-01-24 | 2026 PN WAVE Winter Invitational- Approved fast pool |
| 100 Individual Medley | SCY | 1:11.69 | 2025-02-08 | 2025 PN SSCD Winter Open venue | |
| 200 Individual Medley | SCY | 2:22.26 | BB+1.07s to A | 2025-10-04 | 2025 PN Cascade Fall Classic venue |
| 400 Individual Medley | SCY | 5:00.65 | A+10.86s to AA | 2026-01-25 | 2026 PN WAVE Winter Invitational- Approved fast pool |
| 50 Freestyle | LCM | 27.97 | AAA+1.18s to AAAA | 2026-06-06 | 2026 PN VAST Summer Sprint & Dist. - Approved venue |
| 100 Freestyle | LCM | 1:01.00 | AAA+2.31s to AAAA | 2026-05-03 | 2026 PN BC May Flowers - Approved venue |
| 200 Freestyle | LCM | 2:15.32 | AA+1.73s to AAA | 2026-06-07 | 2026 PN VAST Summer Sprint & Dist. - Approved venue |
| 400 Freestyle | LCM | 4:52.98 | AA+10.19s to AAA | 2026-06-07 | 2026 PN VAST Summer Sprint & Dist. - Approved venue |
| 50 Backstroke | LCM | 31.13 | AAA+0.24s to AAAA | 2026-05-01 | 2026 PN BC May Flowers - Approved |
| 100 Backstroke | LCM | 1:12.49 | A+0.70s to AA | 2026-06-06 | 2026 PN VAST Summer Sprint & Dist. - Approved venue |
| 200 Backstroke | LCM | 2:39.23 | A+3.34s to AA | 2026-05-03 | 2026 PN BC May Flowers - Approved venue |
| 50 Breaststroke | LCM | 42.00 | BB+2.61s to A | 2025-06-28 | 2025 PN CSC 104th Annual Senior Seattle Open venue |
| 100 Breaststroke | LCM | 1:52.28 | +15.09s to B | 2024-06-01 | 2024 PN VAST Summer Sprints and Distance Chal venue |
| 50 Butterfly | LCM | 33.37 | A+1.28s to AA | 2025-06-27 | 2025 PN CSC 104th Annual Senior Seattle Open venue |
| 100 Butterfly | LCM | 1:12.18 | BB+0.09s to A | 2026-05-02 | 2026 PN BC May Flowers - Approved venue |
| 200 Individual Medley | LCM | 2:37.31 | A+0.92s to AA | 2026-06-06 | 2026 PN VAST Summer Sprint & Dist. - Approved venue |
| 400 Individual Medley | LCM | 6:00.86 | BB+12.27s to A | 2025-06-01 | 2025 PN VAST Summer Sprints and Distance Chal venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 13.
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 | SCY | 25.50 | flying | 200 Medley Relay (leg 4) | 2025-03-21 | 2025 Northwest Region Age Group Regionals |
| 100 Freestyle | SCY | 57.12 | flying | 400 Medley Relay (leg 4) | 2025-03-22 | 2025 Northwest Region Age Group Regionals |
Reconstructed from relay split marks. Flat = lead-off (comparable to individual times); flying starts run ~0.5–0.7s fast and are not PRs.
IMX / IMR
IMX 13-14 · SCY
3516 points (6/6 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:21.92 | 725 |
| 200 BK SCY | 2:15.48 | 627 |
| 200 BR SCY | 2:45.65 | 496 |
| 200 FL SCY | 2:28.67 | 494 |
| 200 IM SCY | 2:22.26 | 577 |
| 400 IM SCY | 5:00.65 | 597 |
IMR 13-14 · SCY
3340 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:55.26 | 797 |
| 100 BK SCY | 1:02.66 | 622 |
| 100 BR SCY | 1:17.39 | 475 |
| 100 FL SCY | 55.42 | 869 |
| 200 IM SCY | 2:22.26 | 577 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
200 Freestyle SCY 1:55.26 RT 0.70s
Front half 55.22s · back half 60.04s
500 Freestyle SCY 5:21.92
Front half 159.44s · back half 162.48s
100 Backstroke SCY 1:02.66
Front half 30.55s · back half 32.11s
100 Breaststroke SCY 1:17.39
Front half 36.61s · back half 40.78s
200 Breaststroke SCY 2:45.65
Front half 79.37s · back half 86.28s
100 Butterfly SCY 55.42
200 Butterfly SCY 2:28.67
Front half 68.98s · back half 79.69s
100 Individual Medley SCY 1:11.69
Front half 32.55s · back half 39.14s
200 Individual Medley SCY 2:22.26
Front half 67.49s · back half 74.77s
400 Individual Medley SCY 5:00.65
Front half 149.52s · back half 151.13s
200 Freestyle LCM 2:15.32 RT 0.71s
Front half 65.25s · back half 70.07s
400 Freestyle LCM 4:52.98 RT 0.67s· 25.0 min after 200 Freestyle
Front half 141.38s · back half 151.60s
200 Backstroke LCM 2:39.23
Front half 78.23s · back half 81.00s
200 Individual Medley LCM 2:37.31 RT 0.70s· 51.3 min after 50 Freestyle
Front half 74.35s · back half 82.96s
400 Individual Medley LCM 6:00.86 RT 0.75s
Front half 173.49s · back half 187.37s
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.