Jayna Ko

Age: 11 years old
Age Category: 11-12
Team: Long Island Aquatic Club | Metropolitan Swimming

Personal Best

Short course distance

Event Time Age Date Standard Next Standard Long Island Aquatic Club Metropolitan Swimming Eastern Zone USA
Free 50 Y 33.63 11 01/16/2026 B BB: 31.69 (+1.94s | 5.8%) 61 495 1,000+ 1,000+
Free 100 Y 1:12.95 11 01/23/2026 B BB: 1:09.39 (+3.56s | 4.9%) 62 417 1,000+ 1,000+
50 Free
35.53
35.53
100 Free
37.42
1:12.95
100 Free
1:12.95
Free 200 Y 2:45.41 11 01/16/2026 B: 2:42.59 (+2.82s | 1.7%) 57 357 1,000+ 1,000+
50 Free
37.38
37.38
100 Free
41.75
1:19.13
100 Free
1:19.13
150 Free
43.58
2:02.71
200 Free
42.70
2:45.41
100 Free
1:26.28
Back 50 Y 35.55 11 12/05/2025 BB A: 33.19 (+2.36s | 6.6%) 36 211 963 1,000+
Back 100 Y 1:15.80 11 01/23/2026 BB A: 1:12.99 (+2.81s | 3.7%) 36 198 862 1,000+
50 Back
37.53
37.53
100 Back
38.27
1:15.80
100 Back
1:15.80
Back 200 Y 2:43.04 11 02/06/2026 BB A: 2:33.89 (+9.15s | 5.6%) 31 130 567 1,000+
50 Back
40.63
40.63
100 Back
41.41
1:22.04
100 Back
1:22.04
150 Back
41.20
2:03.24
200 Back
39.80
2:43.04
100 Back
1:21.00
Breast 50 Y 43.77 11 11/16/2025 B BB: 40.89 (+2.88s | 6.6%) 46 349 1,000+ 1,000+
Breast 100 Y 1:33.33 11 02/06/2026 B BB: 1:29.29 (+4.04s | 4.3%) 48 329 1,000+ 1,000+
50 Breast
44.98
44.98
100 Breast
48.35
1:33.33
100 Breast
1:33.33
Breast 200 Y 3:18.87 11 02/06/2026 B BB: 3:10.99 (+7.88s | 4.0%) 28 170 843 1,000+
100 Breast
1:37.71
1:37.71
50 Breast
1:37.71
150 Breast
51.44
2:29.15
50 Breast
51.44
200 Breast
49.72
3:18.87
50 Breast
49.72
Fly 50 Y 37.53 11 02/06/2026 B: 36.89 (+0.64s | 1.7%) 46 325 1,000+ 1,000+
Fly 100 Y 1:36.32 11 01/16/2026 B: 1:25.79 (+10.53s | 10.9%) 61 356 1,000+ 1,000+
50 Fly
41.78
41.78
100 Fly
54.54
1:36.32
100 Fly
1:36.32
IM 100 Y 1:22.26 11 02/06/2026 B BB: 1:19.09 (+3.17s | 3.9%) 38 318 1,000+ 1,000+
50 IM
37.37
37.37
100 IM
44.89
1:22.26
100 IM
1:22.26
IM 200 Y 2:59.26 11 01/16/2026 B BB: 2:50.69 (+8.57s | 4.8%) 54 336 1,000+ 1,000+
50 Fly
39.36
39.36
100 Back
44.28
1:23.64
100 IM
1:23.64
150 Breast
53.53
2:17.17
200 Free
42.09
2:59.26
100 IM
1:35.62

Long course distance

Event Time Age Date Standard Next Standard Long Island Aquatic Club Metropolitan Swimming Eastern Zone USA

Above are the fastest times that Jayna Ko has achieved in her swimming career. For each event, you can find Jayna's best time, the corresponding time standard, as well as how much faster Jayna needs to be to reach the next level. The last columns provide Jayna rankings at the team and LSC levels. These rankings are based on the Jayna's personal best, her current age category, and team; and are calculated from all the meets results.

Disclaimer: This Website is not affiliated with USA Swimming or any Local Swim Committee. The rankings and times displayed on this website are unofficial and should not be viewed as such. We update our information regularly, but we cannot guarantee that the data is accurate, timely, or complete. The only purpose of this website is entertainment. None of the information here should be used for university admission applications.