swimKatelynn Zhou
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 23.62 | AAAA | 2025-12-11 | 2025 West Speedo Winter Juniors venue |
| 100 Freestyle | SCY | 52.18 | AAA+0.89s to AAAA | 2025-03-06 | LAC 2025 Speedo Sectional Championship Series |
| 200 Freestyle | SCY | 1:54.08 | AAA+2.69s to AAAA | 2025-03-06 | LAC 2025 Speedo Sectional Championship Series |
| 50 Backstroke | SCY | 29.87 | A+1.18s to AA | 2020-03-06 | 2020 Short Course TAGS Championships venue |
| 100 Backstroke | SCY | 57.15 | AAA+1.36s to AAAA | 2025-03-06 | LAC 2025 Speedo Sectional Championship Series |
| 50 Breaststroke | SCY | 32.28 | AA+0.29s to AAA | 2020-03-08 | 2020 Short Course TAGS Championships venue |
| 100 Breaststroke | SCY | 1:04.64 | AAA+0.75s to AAAA | 2025-01-01 | 2025 Speedo Winter Junior Championships - West |
| 200 Breaststroke | SCY | 2:16.42 | AAAA | 2025-03-06 | LAC 2025 Speedo Sectional Championship Series |
| 50 Butterfly | SCY | 25.72 | AAAA | 2025-11-12 | nt Hz9zkqJTTBhC9chx8 |
| 100 Butterfly | SCY | 55.58 | AAA+0.19s to AAAA | 2025-01-01 | 2025 Speedo Winter Junior Championships - West |
| 100 Individual Medley | SCY | 1:02.05 | 2020-03-06 | 2020 Short Course TAGS Championships venue | |
| 200 Individual Medley | SCY | 2:00.18 | AAAA | 2025-01-01 | 2025 Speedo Winter Junior Championships - West |
| 50 Freestyle | LCM | 26.26 | AAAA | 2025-08-03 | 2025 Speedo Junior National Championships fast pool |
| 50 Breaststroke | LCM | 34.00 | AAAA | 2025-07-31 | 2025 Speedo Junior National Championships fast pool |
| 200 Breaststroke | LCM | 2:43.00 | AAA+1.91s to AAAA | 2025-08-02 | 2025 Speedo Junior National Championships fast pool |
| 50 Butterfly | LCM | 28.83 | AAAA | 2025-08-02 | 2025 Speedo Junior National Championships fast pool |
| 200 Individual Medley | LCM | 2:22.54 | AAAA | 2025-08-03 | 2025 Speedo Junior National Championships fast pool |
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 | 23.63 | flying | 200 Free Relay (leg 4) | 2021-12-10 | 2021 West Speedo Winter Juniors |
| 100 Freestyle | SCY | 51.93 | flat | 400 Free Relay | 2021-12-11 | 2021 West Speedo Winter Juniors |
| 100 Freestyle | SCY | 51.75 | flying | 400 Medley Relay (leg 4) | 2021-12-09 | 2021 West Speedo Winter Juniors |
| 200 Freestyle | LCM | 2:09.42 | flying | 800 Free Relay (leg 3) | 2025-07-31 | 2025 Speedo Junior National Championships |
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
2109 points (2/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 BR SCY | 2:16.42 | 1046 |
| 200 IM SCY | 2:00.18 | 1063 |
| 500 FR SCY | — | 0 |
| 200 BK SCY | — | 0 |
| 200 FL SCY | — | 0 |
| 400 IM SCY | — | 0 |
IMR 17-18 · SCY
4790 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:54.08 | 906 |
| 100 BK SCY | 57.15 | 890 |
| 100 BR SCY | 1:04.64 | 952 |
| 100 FL SCY | 55.58 | 979 |
| 200 IM SCY | 2:00.18 | 1063 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 52.18 split/total mismatch
200 Freestyle SCY 1:54.08 split/total mismatch
Front half 28.41s · back half 85.67s
100 Backstroke SCY 57.15 split/total mismatch
Front half 27.77s · back half 29.38s
200 Breaststroke SCY 2:16.42 split/total mismatch
100 Individual Medley SCY 1:02.05
Front half 28.64s · back half 33.41s
200 Breaststroke LCM 2:43.00 RT 0.62s
Front half 76.16s · back half 86.84s
200 Individual Medley LCM 2:22.54 RT 0.61s
Front half 67.91s · back half 74.63s
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.