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Jonathan KO

Age: 13 years old
Age Category: 13-14
Team: Irvine Novaquatics | Southern California Swimming

Personal Best

Short course distance

Event Time Age Date Standard Next Standard Irvine Novaquatics Southern California Swimming Western Zone USA
Free 50 Y 24.99 13 10/31/2025 A AA: 24.59 (+0.40s | 1.6%) 15 109 442 1,000+
Free 100 Y 53.77 Analysis 13 01/03/2026 A AA: 53.39 (+0.38s | 0.7%) 12 81 290 1,000+
50 Free
26.15
26.15
100 Free
27.62
53.77
100 Free
53.77
Free 200 Y 2:01.77 Analysis 13 12/12/2025 A AA: 1:57.09 (+4.68s | 3.8%) 17 116 457 1,000+
50 Free
26.74
26.74
100 Free
31.55
58.29
100 Free
58.29
150 Free
32.54
1:30.83
200 Free
30.94
2:01.77
100 Free
1:03.48
Breast 50 Y 28.68 13 03/12/2026 AAAA 3 10 24 74
Breast 100 Y 1:00.97 Analysis 13 03/12/2026 AAA AAAA: 1:00.39 (+0.58s | 1.0%) 3 7 17 56
50 Breast
29.12
29.12
100 Breast
31.85
1:00.97
100 Breast
1:00.97
Breast 200 Y 2:21.56 Analysis 13 10/31/2025 AA AAA: 2:17.39 (+4.17s | 2.9%) 9 34 87 243
50 Breast
32.15
32.15
100 Breast
36.80
1:08.95
100 Breast
1:08.95
150 Breast
37.54
1:46.49
200 Breast
35.07
2:21.56
100 Breast
1:12.61
Fly 50 Y 25.82 13 03/12/2026 AAA AAAA: 24.89 (+0.93s | 3.6%) 4 20 83 254
Fly 100 Y 59.81 Analysis 13 03/12/2026 A AA: 57.89 (+1.92s | 3.2%) 17 70 255 849
IM 200 Y 2:07.61 Analysis 13 03/12/2026 AA AAA: 2:04.09 (+3.52s | 2.8%) 8 31 105 342
50 Fly
27.24
27.24
100 Back
35.48
1:02.72
100 IM
1:02.72
150 Breast
35.26
1:37.98
200 Free
29.63
2:07.61
100 IM
1:04.89
IM 400 Y 4:28.12 Analysis 13 03/12/2026 AA AAA: 4:25.39 (+2.73s | 1.0%) 6 16 48 182
50 Fly
27.43
27.43
100 Fly
32.38
59.81
100 Fly
59.81
150 Back
36.10
1:35.91
200 Back
35.77
2:11.68
100 Back
1:11.87
250 Breast
36.61
2:48.29
300 Breast
37.33
3:25.62
100 Breast
1:13.94
350 Free
31.57
3:57.19
400 Free
30.93
4:28.12
100 Free
1:02.50

Long course distance

Event Time Age Date Standard Next Standard Irvine Novaquatics Southern California Swimming Western Zone USA
Free 50 M 26.34 13 07/16/2026 AAA AAAA: 25.69 (+0.65s | 2.5%) 4 25 71 240
Free 100 M 58.05 Analysis 13 07/16/2026 AAA AAAA: 56.39 (+1.66s | 2.9%) 8 42 98 286
Free 200 M 2:18.64 Analysis 13 06/12/2025 A AA: 2:14.69 (+3.95s | 2.8%) 19 146 475 1,000+
50 Free
31.74
31.74
100 Free
35.94
1:07.68
100 Free
1:07.68
150 Free
36.79
1:44.47
200 Free
34.17
2:18.64
100 Free
1:10.96
Free 400 M 5:17.99 Analysis 13 06/13/2024 BB A: 4:58.69 (+19.30s | 6.1%) 23 203 795 1,000+
50 Free
35.77
35.77
100 Free
40.30
1:16.07
100 Free
1:16.07
150 Free
40.44
1:56.52
200 Free
40.91
2:37.43
100 Free
1:21.35
250 Free
42.01
3:19.44
300 Free
40.58
4:00.02
100 Free
1:22.59
350 Free
41.28
4:41.30
400 Free
36.69
5:17.99
100 Free
1:17.97
Back 50 M 43.41 13 07/20/2023 B: 39.49 (+3.92s | 9.0%) 35 313 1,000+ 1,000+
Breast 50 M 32.13 13 07/16/2026 AAAA 4 11 27 63
Breast 100 M 1:09.44 Analysis 13 07/16/2026 AAAA 3 7 17 36
50 Breast
32.72
32.72
100 Breast
36.71
1:09.44
100 Breast
1:09.44
Breast 200 M 2:35.46 Analysis 13 07/16/2026 AAA AAAA: 2:32.09 (+3.37s | 2.2%) 5 18 43 92
50 Breast
35.02
35.02
100 Breast
40.14
1:15.16
100 Breast
1:15.16
150 Breast
40.51
1:55.67
200 Breast
39.79
2:35.46
100 Breast
1:20.30
Fly 50 M 29.09 13 07/16/2026 AAA AAAA: 27.99 (+1.10s | 3.8%) 10 53 149 394
IM 200 M 2:31.23 Analysis 13 06/12/2025 A AA: 2:30.19 (+1.04s | 0.7%) 18 101 276 733
50 Fly
32.39
32.39
100 Back
41.05
1:13.44
100 IM
1:13.44
150 Breast
42.16
1:55.60
200 Free
35.63
2:31.23
100 IM
1:17.79

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