Katherine Xiao
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 26.71 | AA+0.52s to AAA·+1.92s to Sectionals | 2025-01-01 | 2025 spooktacular mit results |
| 100 Freestyle | SCY | 57.36 | AA+0.37s to AAA·+4.27s to Sectionals | 2026-01-01 | 2026 ne inst cup championship results |
| 200 Freestyle | SCY | 2:00.75 | AAA+2.46s to AAAA·+5.76s to Sectionals | 2026-01-01 | 2026 ne inst cup championship results |
| 500 Freestyle | SCY | 5:19.38 | AAA+3.89s to AAAA·+10.59s to Sectionals | 2026-02-19 | 2026 NE CRA SCY 11-14 Championship |
| 1000 Freestyle | SCY | 10:55.42 | AAAA·+16.43s to Sectionals | 2025-12-12 | 2025 NE NSSC Dec 13-15 Holiday Celebration! |
| 1650 Freestyle | SCY | 18:11.57 | AAAA·+22.18s to Sectionals | 2025-11-21 | 2025 NE ABF Nov Trials and Final Meetvenue |
| 50 Backstroke | SCY | 32.98 | BB+1.09s to A·+6.69s to Futures | 2025-01-01 | 2025 yns ne silver champ results |
| 100 Backstroke | SCY | 1:05.89 | A+0.80s to AA·+6.60s to Sectionals | 2025-10-17 | 2025 NE NSSC Beede Halloween Classic |
| 200 Backstroke | SCY | 2:19.09 | AA+4.80s to AAA·+10.20s to Sectionals | 2026-01-01 | 2026 ne inst cup championship results |
| 50 Breaststroke | SCY | 32.29 | AAAA·+2.50s to Futures | 2026-01-01 | 2026 ne inst cup championship results |
| 100 Breaststroke | SCY | 1:10.46 | AAA+2.27s to AAAA·+2.27s to Sectionals | 2025-11-23 | 2025 NE ABF Nov Trials and Final Meetvenue |
| 200 Breaststroke | SCY | 2:26.12 | AAAA·Sectionals ✓+3.43s to Futures | 2025-12-14 | 2025 NE NSSC TT Dec Holiday Celebration!venue |
| 50 Butterfly | SCY | 30.19 | AA+1.40s to AAA·+4.50s to Futures | 2025-01-01 | 2025 spooktacular mit results |
| 100 Butterfly | SCY | 1:05.72 | A+0.93s to AA·+7.23s to Sectionals | 2026-01-01 | 2026 ne inst cup championship results |
| 200 Butterfly | SCY | 2:51.50 | B+7.81s to BB·+39.41s to Sectionals | 2025-01-01 | 2025 ne crim last chance meet results |
| 100 Individual Medley | SCY | 1:04.80 | 2026-01-10 | 2026 NE NSSC January 9-11 BC Meetvenue | |
| 200 Individual Medley | SCY | 2:15.98 | AAA+3.49s to AAAA·+5.29s to Sectionals | 2026-01-01 | 2026 ne inst cup championship results |
| 400 Individual Medley | SCY | 4:41.84 | AAA+1.25s to AAAA·+3.45s to Sectionals | 2025-12-12 | 2025 NE NSSC Dec Holiday Celebration!venue |
| 50 Freestyle | LCM | 29.38 | AAA+0.79s to AAAA·+1.09s to Sectionals | 2026-01-01 | 2026 NE CS 13&Over Championshipfast pool |
| 100 Freestyle | LCM | 1:04.17 | AAA+2.08s to AAAA·+3.48s to Sectionals | 2026-05-10 | 2026 NE CRA MIT Team Specialty LC Meetvenue |
| 200 Freestyle | LCM | 2:16.27 | AAA+0.98s to AAAA·+5.38s to Sectionals | 2026-07-24 | 2026 NE CS LCM 13&O Championshipsvenue |
| 400 Freestyle | LCM | 4:45.72 | AAA+1.33s to AAAA·+8.03s to Sectionals | 2026-07-25 | 2026 NE CS LCM 13&O Championshipsvenue |
| 800 Freestyle | LCM | 9:45.81 | AAAA·+15.82s to Sectionals | 2026-07-26 | 2026 NE CS LCM 13&O Championshipsvenue |
| 1500 Freestyle | LCM | 18:37.18 | AAAA·+20.39s to Sectionals | 2026-07-23 | 2026 NE CS LCM 13&O Championshipsvenue |
| 50 Backstroke | LCM | 36.17 | A+0.18s to AA·+5.28s to Futures | 2026-06-26 | 2026 NE NSSC June 26-28 MIT Invitationalvenue |
| 100 Backstroke | LCM | 1:15.60 | AA+2.81s to AAA·+7.71s to Sectionals | 2026-06-26 | 2026 NE NSSC June 26-28 MIT Invitationalvenue |
| 200 Backstroke | LCM | 2:46.70 | A+2.61s to AA·+20.51s to Sectionals | 2025-01-01 | 2025 sunrise summer solstice results |
| 50 Breaststroke | LCM | 37.62 | AAA+0.83s to AAAA·+2.83s to Futures | 2026-01-01 | NE CS 2026 Summer Solstice at Brown University |
| 100 Breaststroke | LCM | 1:22.60 | AA+0.31s to AAA·+4.71s to Sectionals | 2025-01-01 | 2025 NE Swimming LCM 11-14 Age Group Championships |
| 200 Breaststroke | LCM | 2:57.68 | AA+0.29s to AAA·+8.29s to Sectionals | 2026-07-25 | 2026 NE CS LCM 13&O Championshipsvenue |
| 50 Butterfly | LCM | 33.53 | AA+1.14s to AAA·+4.04s to Futures | 2026-06-26 | 2026 NE NSSC June 26-28 MIT Invitationalvenue |
| 100 Butterfly | LCM | 1:13.41 | AA+2.82s to AAA·+7.12s to Sectionals | 2026-01-01 | NE CS 2026 Summer Solstice at Brown University |
| 200 Individual Medley | LCM | 2:34.13 | AAA+2.34s to AAAA·+5.74s to Sectionals | 2026-07-26 | 2026 NE CS LCM 13&O Championshipsvenue |
| 400 Individual Medley | LCM | 5:22.73 | AAA+0.34s to AAAA·+2.24s to Sectionals | 2026-07-24 | 2026 NE CS LCM 13&O Championshipsvenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 13.
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 Breaststroke | SCY | 31.51 | flying | 200 Medley Relay (leg 2) | 2025-12-18 | 2026 NE NSSC Senior Championships |
| 100 Breaststroke | LCM | 1:22.20 | flying | 400 Medley Relay (leg 2) | 2026-07-11 | 2026 NE CS LCM Senior 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 13-14 · SCY
4761 points (6/6 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:19.38 | 907 |
| 200 BK SCY | 2:19.09 | 722 |
| 200 BR SCY | 2:26.12 | 943 |
| 200 FL SCY | 2:51.50 | 419 |
| 200 IM SCY | 2:15.98 | 849 |
| 400 IM SCY | 4:41.84 | 921 |
IMR 13-14 · LCM
3995 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:16.27 | 898 |
| 100 BK LCM | 1:15.60 | 705 |
| 100 BR LCM | 1:22.60 | 803 |
| 100 FL LCM | 1:13.41 | 706 |
| 200 IM LCM | 2:34.13 | 883 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 57.36 split/total mismatch
Front half 27.89s · back half 29.47s
200 Freestyle SCY 2:00.75 split/total mismatch
500 Freestyle SCY 5:19.38 split/total mismatch
1000 Freestyle SCY 10:55.42 split/total mismatch
1650 Freestyle SCY 18:11.57
100 Backstroke SCY 1:05.89 split/total mismatch
Front half 32.49s · back half 33.40s
200 Backstroke SCY 2:19.09 split/total mismatch
100 Breaststroke SCY 1:10.46
Front half 33.62s · back half 36.84s
200 Breaststroke SCY 2:26.12
Front half 70.29s · back half 75.83s
100 Butterfly SCY 1:05.72 split/total mismatch
Front half 30.83s · back half 34.89s
200 Butterfly SCY 2:51.50 split/total mismatch
100 Individual Medley SCY 1:04.80
Front half 30.42s · back half 34.38s
200 Individual Medley SCY 2:15.98 split/total mismatch
400 Individual Medley SCY 4:41.84
Front half 138.97s · back half 142.87s
200 Freestyle LCM 2:16.27
Front half 66.46s · back half 69.81s
400 Freestyle LCM 4:45.72
Front half 141.15s · back half 144.57s
800 Freestyle LCM 9:45.81
Front half 294.22s · back half 291.59s
1500 Freestyle LCM 18:37.18
Front half 554.59s · back half 562.59s
50 Backstroke LCM 36.17
Front half 21.83s · back half 14.34s
200 Backstroke LCM 2:46.70 split/total mismatch
100 Breaststroke LCM 1:22.60 split/total mismatch
Front half 38.97s · back half 43.63s
200 Breaststroke LCM 2:57.68
Front half 86.52s · back half 91.16s
100 Butterfly LCM 1:13.41 split/total mismatch
Front half 33.86s · back half 39.55s
200 Individual Medley LCM 2:34.13
Front half 74.64s · back half 79.49s
400 Individual Medley LCM 5:22.73
Front half 159.67s · back half 163.06s
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.