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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%) 6 58 251 907
Free 100 Y 49.58 Analysis 15 05/01/2026 AA AAA: 48.79 (+0.79s | 1.6%) 10 85 357 1,000+
50 Free
24.31
24.31
100 Free
25.27
49.58
100 Free
49.58
Free 200 Y 1:50.30 Analysis 15 11/01/2025 AA AAA: 1:46.89 (+3.41s | 3.1%) 9 105 451 1,000+
Free 500 Y 4:58.00 Analysis 15 03/07/2026 AA AAA: 4:49.49 (+8.51s | 2.9%) 6 79 346 1,000+
Back 50 Y 25.30 15 05/01/2026 1 26 124 383
Back 100 Y 56.72 Analysis 15 01/24/2026 A AA: 55.49 (+1.23s | 2.2%) 7 83 370 1,000+
50 Back
27.10
27.10
100 Back
29.62
56.72
100 Back
56.72
Back 200 Y 2:07.01 Analysis 15 04/03/2025 BB A: 2:06.59 (+0.42s | 0.3%) 8 91 443 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 15 01/27/2023 31 273 1,000+ 1,000+
Breast 100 Y 1:03.85 Analysis 15 01/24/2026 A AA: 1:03.19 (+0.66s | 1.0%) 13 99 423 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 Analysis 15 10/25/2025 A AA: 2:17.29 (+2.12s | 1.5%) 12 93 343 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 3 20 70 217
Fly 100 Y 52.09 Analysis 15 02/26/2026 AAA AAAA: 50.39 (+1.70s | 3.3%) 3 29 103 322
50 Fly
24.60
24.60
100 Fly
27.49
52.09
100 Fly
52.09
Fly 200 Y 1:58.02 Analysis 15 03/07/2026 AAA AAAA: 1:52.69 (+5.33s | 4.5%) 5 39 125 383
IM 200 Y 2:00.11 Analysis 15 12/20/2025 AA AAA: 1:58.59 (+1.52s | 1.3%) 6 61 224 689
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 Analysis 15 10/25/2025 A AA: 4:24.69 (+1.83s | 0.7%) 6 78 319 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%) 9 102 474 1,000+
Free 100 M 59.93 Analysis 15 07/12/2024 A AA: 58.99 (+0.94s | 1.6%) 16 156 675 1,000+
Free 200 M 2:16.37 Analysis 15 05/23/2025 BB A: 2:14.29 (+2.08s | 1.5%) 15 173 804 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 Analysis 15 07/15/2023 BB A: 4:46.39 (+14.30s | 4.8%) 14 180 827 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 Analysis 15 05/25/2024 BB A: 1:07.99 (+5.03s | 6.9%) 17 158 775 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 Analysis 15 06/22/2024 BB A: 1:16.69 (+1.61s | 2.1%) 10 106 487 1,000+
Breast 200 M 2:51.96 Analysis 15 06/22/2024 BB A: 2:46.69 (+5.27s | 3.1%) 11 103 426 909
Fly 50 M 30.47 15 06/09/2023 5 55 342 860
Fly 100 M 1:03.05 Analysis 15 07/31/2025 AA AAA: 1:00.29 (+2.76s | 4.4%) 9 61 246 572
Fly 200 M 2:32.07 Analysis 15 04/18/2026 BB A: 2:27.19 (+4.88s | 3.2%) 6 76 309 690
IM 200 M 2:25.80 Analysis 15 07/19/2025 A AA: 2:24.69 (+1.11s | 0.8%) 7 91 380 840

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.