swimYizhen Liu
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 25.82 | AA+1.03s to AAA | 2024-03-23 | 2024 EZ North Region Speedo Sectional Champs venue |
| 100 Freestyle | SCY | 55.38 | AA+1.59s to AAA | 2024-03-24 | 2024 EZ North Region Speedo Sectional Champs venue |
| 200 Freestyle | SCY | 2:13.80 | BB+6.41s to A | 2019-11-10 | 11th Annual Carl Warner Memorial venue |
| 500 Freestyle | SCY | 5:39.63 | A+12.54s to AA | 2020-02-14 | 2020 Southeast District Champs (SEVA) slow pool |
| 50 Backstroke | SCY | 33.48 | B+1.09s to BB | 2019-10-05 | TIDE Indian Summer Speedo Challenge venue |
| 100 Backstroke | SCY | 1:05.98 | BB+2.19s to A | 2020-02-15 | 2020 Southeast District Champs (SEVA) slow pool |
| 200 Backstroke | SCY | 2:16.76 | A+3.87s to AA | 2024-12-13 | 2024 NE CRA Winter Invitational venue |
| 50 Breaststroke | SCY | 31.85 | AAA+1.26s to AAAA | 2024-12-14 | 2024 NE CRA Winter Invitational venue |
| 100 Breaststroke | SCY | 1:08.04 | AA+1.15s to AAA | 2024-03-21 | 2024 EZ North Region Speedo Sectional Champs |
| 200 Breaststroke | SCY | 2:25.66 | AA+0.37s to AAA | 2024-12-15 | 2024 NE CRA Winter Invitational venue |
| 50 Butterfly | SCY | 32.36 | BB+2.47s to A | 2019-10-06 | TIDE Indian Summer Speedo Challenge venue |
| 100 Butterfly | SCY | 1:09.17 | B+0.58s to BB | 2020-02-16 | 2020 Southeast District Champs (SEVA) slow pool |
| 200 Butterfly | SCY | 2:46.65 | +3.06s to B | 2019-11-09 | 11th Annual Carl Warner Memorial venue |
| 100 Individual Medley | SCY | 1:01.80 | 2024-12-15 | 2024 NE CRA Winter Invitational venue | |
| 200 Individual Medley | SCY | 2:10.89 | AA+0.40s to AAA | 2024-12-14 | 2024 NE CRA Winter Invitational venue |
| 400 Individual Medley | SCY | 4:44.00 | AA+5.91s to AAA | 2024-03-22 | 2024 EZ North Region Speedo Sectional Champs venue |
| 50 Freestyle | LCM | 29.47 | AA+1.08s to AAA | 2024-07-26 | 2024 ISCA Summer Senior Blast venue |
| 100 Freestyle | LCM | 1:03.42 | AA+2.03s to AAA | 2024-07-27 | 2024 ISCA Summer Senior Blast venue |
| 50 Backstroke | LCM | 35.62 | A+1.33s to AA | 2024-07-25 | 2024 ISCA Summer Senior Blast venue |
| 50 Breaststroke | LCM | 36.69 | AA+0.40s to AAA | 2024-07-27 | 2024 ISCA Summer Senior Blast venue |
| 100 Breaststroke | LCM | 1:19.17 | AA+1.88s to AAA | 2024-07-24 | 2024 ISCA Summer Senior Blast venue |
| 200 Breaststroke | LCM | 2:52.19 | AA+3.40s to AAA | 2024-07-25 | 2024 ISCA Summer Senior Blast venue |
| 200 Individual Medley | LCM | 2:31.63 | AA+2.14s to AAA | 2024-07-24 | 2024 ISCA Summer Senior Blast venue |
| 400 Individual Medley | LCM | 5:25.01 | AA+5.72s to AAA | 2024-07-26 | 2024 ISCA Summer Senior Blast venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 18.
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 | 25.62 | flying | 200 Free Relay (leg 3) | 2025-03-30 | 2025 EZ North Speedo Short Course Sectionals |
| 50 Breaststroke | SCY | 31.05 | flying | 200 Medley Relay (leg 2) | 2024-03-23 | 2024 EZ North Region Speedo Sectional Champs |
| 100 Breaststroke | SCY | 1:09.36 | flying | 400 Medley Relay (leg 2) | 2024-03-24 | 2024 EZ North Region Speedo Sectional Champs |
| 50 Freestyle | LCM | 28.85 | flying | 200 Free Relay (leg 3) | 2024-07-23 | 2024 ISCA Summer Senior Blast |
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 17-18 · SCY
4200 points (6/6 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:39.63 | 671 |
| 200 BK SCY | 2:16.76 | 660 |
| 200 BR SCY | 2:25.66 | 859 |
| 200 FL SCY | 2:46.65 | 393 |
| 200 IM SCY | 2:10.89 | 823 |
| 400 IM SCY | 4:44.00 | 794 |
IMR 17-18 · SCY
3285 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:13.80 | 561 |
| 100 BK SCY | 1:05.98 | 578 |
| 100 BR SCY | 1:08.04 | 816 |
| 100 FL SCY | 1:09.17 | 507 |
| 200 IM SCY | 2:10.89 | 823 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 55.38
Front half 26.90s · back half 28.48s
200 Freestyle SCY 2:13.80
Front half 65.63s · back half 68.17s
500 Freestyle SCY 5:39.63
Front half 169.87s · back half 169.76s
100 Backstroke SCY 1:05.98
Front half 32.51s · back half 33.47s
200 Backstroke SCY 2:16.76
Front half 66.49s · back half 70.27s
200 Breaststroke SCY 2:25.66
Front half 70.20s · back half 75.46s
100 Butterfly SCY 1:09.17
Front half 31.71s · back half 37.46s
200 Butterfly SCY 2:46.65
Front half 76.98s · back half 89.67s
100 Individual Medley SCY 1:01.80
Front half 28.98s · back half 32.82s
200 Individual Medley SCY 2:10.89
Front half 62.44s · back half 68.45s
400 Individual Medley SCY 4:44.00
Front half 135.89s · back half 148.11s
100 Freestyle LCM 1:03.42
Front half 30.68s · back half 32.74s
100 Breaststroke LCM 1:19.17
Front half 37.54s · back half 41.63s
200 Breaststroke LCM 2:52.19
Front half 82.09s · back half 90.10s
200 Individual Medley LCM 2:31.63
Front half 72.33s · back half 79.30s
400 Individual Medley LCM 5:25.01
Front half 157.56s · back half 167.45s
Progression
Faster times are higher. One card per event, all courses & history.