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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%) 17 134 560 1,000+
Free 100 Y 53.77 Analysis 13 01/03/2026 A AA: 53.39 (+0.38s | 0.7%) 14 106 391 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%) 20 145 596 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 3 11 33 102
Breast 100 Y 1:00.97 Analysis 13 03/12/2026 AAA AAAA: 1:00.39 (+0.58s | 1.0%) 3 10 22 78
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%) 12 47 133 359
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 5 27 123 359
Fly 100 Y 59.81 Analysis 13 03/12/2026 A AA: 57.89 (+1.92s | 3.2%) 18 93 348 1,000+
IM 200 Y 2:07.61 Analysis 13 03/12/2026 AA AAA: 2:04.09 (+3.52s | 2.8%) 10 42 159 506
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%) 8 24 70 274
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 29.33 13 06/12/2025 A AA: 28.19 (+1.14s | 3.9%) 19 122 494 1,000+
Free 100 M 1:04.62 Analysis 13 05/23/2025 BB A: 1:04.39 (+0.23s | 0.4%) 20 116 479 996
50 Free
31.20
31.20
100 Free
33.42
1:04.62
100 Free
1:04.62
Free 200 M 2:18.64 Analysis 13 06/12/2025 A AA: 2:14.69 (+3.95s | 2.8%) 13 80 285 618
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%) 15 159 618 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 33 276 1,000+ 1,000+
Breast 50 M 34.95 13 06/12/2025 4 14 59 121
Breast 100 M 1:14.17 Analysis 13 06/12/2025 AA AAA: 1:13.69 (+0.48s | 0.6%) 3 15 52 96
50 Breast
35.33
35.33
100 Breast
38.84
1:14.17
100 Breast
1:14.17
Breast 200 M 2:37.52 Analysis 13 06/12/2025 AAA AAAA: 2:32.09 (+5.43s | 3.4%) 3 9 24 46
50 Breast
37.46
37.46
100 Breast
40.96
1:18.42
100 Breast
1:18.42
150 Breast
39.99
1:58.41
200 Breast
39.11
2:37.52
100 Breast
1:19.10
Fly 50 M 31.79 13 06/12/2025 15 60 244 518
IM 200 M 2:31.23 Analysis 13 06/12/2025 A AA: 2:30.19 (+1.04s | 0.7%) 10 46 166 327
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.