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Jake Ko

Age: 15 years old
Age Category: 15-16
Team: Palo Alto Stanford Aquatics | Pacific Swimming

Personal Best

Short course distance

Event Time Age Date Standard Next Standard Palo Alto Stanford Aquatics Pacific Swimming Western Zone USA
Free 50 Y 22.56 15 12/20/2025 AA AAA: 22.19 (+0.37s | 1.6%) 5 60 230 929
Free 100 Y 49.66 15 01/24/2026 AA AAA: 48.79 (+0.87s | 1.8%) 9 90 359 1,000+
50 Free
23.95
23.95
100 Free
25.71
49.66
100 Free
49.66
Free 200 Y 1:50.30 15 11/01/2025 AA AAA: 1:46.89 (+3.41s | 3.1%) 9 117 451 1,000+
Free 500 Y 4:58.00 15 03/07/2026 AA AAA: 4:49.49 (+8.51s | 2.9%) 6 85 329 1,000+
Back 50 Y 31.21 12 03/18/2023 26 252 1,000+ 1,000+
Back 100 Y 56.72 15 01/24/2026 A AA: 55.49 (+1.23s | 2.2%) 7 94 360 1,000+
50 Back
27.10
27.10
100 Back
29.62
56.72
100 Back
56.72
Back 200 Y 2:07.01 14 04/03/2025 BB A: 2:06.59 (+0.42s | 0.3%) 9 101 437 1,000+
50 Back
30.16
30.16
100 Back
32.65
1:02.81
100 Back
1:02.81
150 Back
32.61
1:35.42
200 Back
31.59
2:07.01
100 Back
1:04.20
Breast 50 Y 36.40 12 01/27/2023 29 282 1,000+ 1,000+
Breast 100 Y 1:03.85 15 01/24/2026 A AA: 1:03.19 (+0.66s | 1.0%) 13 107 403 1,000+
50 Breast
29.96
29.96
100 Breast
33.89
1:03.85
100 Breast
1:03.85
Breast 200 Y 2:19.41 15 10/25/2025 A AA: 2:17.29 (+2.12s | 1.5%) 11 104 338 1,000+
50 Breast
31.89
31.89
100 Breast
34.70
1:06.59
100 Breast
1:06.59
150 Breast
35.67
1:42.26
200 Breast
37.15
2:19.41
100 Breast
1:12.82
Fly 50 Y 23.90 15 02/26/2026 2 17 68 218
Fly 100 Y 52.09 15 02/26/2026 AAA AAAA: 50.39 (+1.70s | 3.3%) 3 33 102 354
50 Fly
24.60
24.60
100 Fly
27.49
52.09
100 Fly
52.09
Fly 200 Y 1:58.02 15 03/07/2026 AAA AAAA: 1:52.69 (+5.33s | 4.5%) 5 44 124 415
IM 200 Y 2:00.11 15 12/20/2025 AA AAA: 1:58.59 (+1.52s | 1.3%) 6 64 208 688
50 Fly
25.69
25.69
100 Back
30.42
56.11
100 IM
56.11
150 Breast
35.66
1:31.77
200 Free
28.34
2:00.11
100 IM
1:04.00
IM 400 Y 4:26.52 15 10/25/2025 A AA: 4:24.69 (+1.83s | 0.7%) 7 91 320 1,000+
50 Fly
28.08
28.08
100 Fly
31.97
1:00.05
100 Fly
1:00.05
150 Back
35.32
1:35.37
200 Back
35.42
2:10.79
100 Back
1:10.74
250 Breast
37.86
2:48.65
300 Breast
37.74
3:26.39
100 Breast
1:15.60
350 Free
29.97
3:56.36
400 Free
30.16
4:26.52
100 Free
1:00.13

Long course distance

Event Time Age Date Standard Next Standard Palo Alto Stanford Aquatics Pacific Swimming Western Zone USA
Free 50 M 26.94 15 07/19/2025 AA AAA: 25.89 (+1.05s | 3.9%) 9 118 461 1,000+
Free 100 M 59.93 14 07/12/2024 A AA: 58.99 (+0.94s | 1.6%) 16 172 641 1,000+
Free 200 M 2:16.37 14 05/23/2025 BB A: 2:14.29 (+2.08s | 1.5%) 17 190 793 1,000+
100 Free
1:05.36
1:05.36
100 Free
1:05.36
200 Free
1:11.01
2:16.37
100 Free
1:11.01
Free 400 M 5:00.69 13 07/15/2023 BB A: 4:46.39 (+14.30s | 4.8%) 16 185 783 1,000+
100 Free
1:10.99
1:10.99
100 Free
1:10.99
200 Free
1:15.82
2:26.81
100 Free
1:15.82
300 Free
1:16.57
3:43.38
100 Free
1:16.57
400 Free
1:17.31
5:00.69
100 Free
1:17.31
Back 100 M 1:13.02 13 05/25/2024 BB A: 1:07.99 (+5.03s | 6.9%) 17 165 736 1,000+
50 Back
35.45
35.45
100 Back
37.57
1:13.02
100 Back
1:13.02
Breast 100 M 1:18.30 14 06/22/2024 BB A: 1:16.69 (+1.61s | 2.1%) 9 119 467 1,000+
Breast 200 M 2:51.96 14 06/22/2024 BB A: 2:46.69 (+5.27s | 3.1%) 9 110 412 915
Fly 50 M 30.47 12 06/09/2023 5 55 294 798
Fly 100 M 1:03.05 15 07/31/2025 AA AAA: 1:00.29 (+2.76s | 4.4%) 9 73 252 597
Fly 200 M 2:37.36 15 07/19/2025 BB A: 2:27.19 (+10.17s | 6.5%) 10 90 366 815
IM 200 M 2:25.80 15 07/19/2025 A AA: 2:24.69 (+1.11s | 0.8%) 7 106 377 867

Above are the fastest times that Jake Ko has achieved in his swimming career. For each event, you can find Jake's best time, the corresponding time standard, as well as how much faster Jake needs to be to reach the next level. The last columns provide Jake rankings at the team and LSC levels. These rankings are based on the Jake's personal best, his 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.