swimDerek Guo
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 33.53 | 2020-01-12 | 2020 NI STSL Meet 2 | |
| 100 Freestyle | SCY | 1:15.21 | 2020-01-26 | 2020 NI STSL Meet 3 | |
| 200 Freestyle | SCY | 2:44.03 | 2020-03-01 | 2020 NI Champs Qualifier UNACvenue | |
| 50 Backstroke | SCY | 41.00 | 2019-12-28 | 2019 NI CVSC 15th Annual Holiday Sprints | |
| 100 Backstroke | SCY | 1:24.46 | 2020-01-12 | 2020 NI STSL Meet 2 | |
| 200 Backstroke | SCY | 3:11.78 | 2020-02-01 | 2020 NI STSL Winter Championships | |
| 50 Breaststroke | SCY | 40.78 | 2020-03-07 | 2020 NI 12 & Under Championships (Golds)venue | |
| 100 Breaststroke | SCY | 1:29.27 | 2020-03-01 | 2020 NI Champs Qualifier UNACvenue | |
| 200 Breaststroke | SCY | 3:16.63 | 2020-02-29 | 2020 NI Champs Qualifier UNACvenue | |
| 50 Butterfly | SCY | 40.10 | 2019-12-28 | 2019 NI CVSC 15th Annual Holiday Sprints | |
| 100 Butterfly | SCY | 1:37.37 | 2020-01-12 | 2020 NI STSL Meet 2 | |
| 100 Individual Medley | SCY | 1:26.00 | 2019-12-15 | 2019 NI SYCH CNY Invitevenue | |
| 200 Individual Medley | SCY | 2:50.89 | 2020-03-08 | 2020 NI 12 & Under Championships (Golds)venue | |
| 100 Freestyle | LCM | 1:17.04 | 2021-07-17 | 2021 NI WEBS Back to the Races #6 LC | |
| 100 Breaststroke | LCM | 1:39.86 | 2021-07-17 | 2021 NI WEBS Back to the Races #6 LC | |
| 50 Butterfly | LCM | 36.96 | 2021-07-17 | 2021 NI WEBS Back to the Races #6 LC |
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Freestyle | SCY | 31.33 | flying | 200 Medley Relay (leg 4) | 2020-03-07 | 2020 NI 12 & Under Championships (Golds) |
| 50 Freestyle | SCY | 31.58 | flying | 200 Free Relay (leg 3) | 2020-03-08 | 2020 NI 12 & Under Championships (Golds) |
| 50 Breaststroke | SCY | 42.20 | flying | 200 Medley Relay (leg 2) | 2020-03-08 | 2020 NI 12 & Under Championships (Golds) |
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 1:15.21 split/total mismatch
Front half 34.32s · back half 40.89s
200 Freestyle SCY 2:44.03
Front half 78.75s · back half 85.28s
100 Backstroke SCY 1:24.46 split/total mismatch
Front half 40.70s · back half 43.76s
200 Backstroke SCY 3:11.78 split/total mismatch
100 Breaststroke SCY 1:29.27
Front half 42.55s · back half 46.72s
200 Breaststroke SCY 3:16.63
Front half 93.70s · back half 102.93s
100 Butterfly SCY 1:37.37 split/total mismatch
Front half 44.77s · back half 52.60s
100 Individual Medley SCY 1:26.00
Front half 40.61s · back half 45.39s
200 Individual Medley SCY 2:50.89
100 Freestyle LCM 1:17.04 split/total mismatch
Front half 35.67s · back half 41.37s
100 Breaststroke LCM 1:39.86 split/total mismatch
Front half 44.73s · back half 55.13s
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.
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.