New! ScoreMeUp is now available on the App Store. Download the iOS app →

Kaj Kosinski

Age: 17 years old
Age Category: 17-18
Team: Tsm Aquatics | Southern California Swimming

Personal Best

Short course distance

Event Time Age Date Standard Next Standard Tsm Aquatics Southern California Swimming Western Zone USA
Free 50 Y 24.59 17 02/13/2026 BB A: 23.59 (+1.00s | 4.1%) 4 413 1,000+ 1,000+
Free 100 Y 53.28 Analysis 17 11/07/2024 BB A: 51.69 (+1.59s | 3.0%) 6 419 1,000+ 1,000+
50 Free
25.61
25.61
100 Free
27.67
53.28
100 Free
53.28
Free 200 Y 2:30.59 Analysis 17 02/18/2022 B: 2:13.59 (+17.00s | 11.3%) 9 424 1,000+ 1,000+
50 Free
33.58
33.58
100 Free
38.34
1:11.92
100 Free
1:11.92
150 Free
41.01
1:52.93
200 Free
37.66
2:30.59
100 Free
1:18.67
Free 500 Y 5:27.07 Analysis 17 12/09/2023 BB A: 5:11.39 (+15.68s | 4.8%) 8 260 1,000+ 1,000+
50 Free
29.57
29.57
100 Free
32.32
1:01.89
100 Free
1:01.89
150 Free
32.88
1:34.77
200 Free
34.01
2:08.78
100 Free
1:06.89
250 Free
33.34
2:42.12
300 Free
33.30
3:15.42
100 Free
1:06.64
350 Free
33.18
3:48.60
400 Free
33.37
4:21.97
100 Free
1:06.55
450 Free
33.25
4:55.22
500 Free
31.85
5:27.07
100 Free
1:05.10
Free 1000 Y 10:51.02 Analysis 17 12/13/2024 A AA: 10:24.49 (+26.53s | 4.1%) 8 145 422 1,000+
50 Free
29.12
29.12
100 Free
32.11
1:01.23
100 Free
1:01.23
150 Free
33.00
1:34.23
200 Free
32.92
2:07.15
100 Free
1:05.92
250 Free
32.61
2:39.76
300 Free
33.01
3:12.77
100 Free
1:05.62
350 Free
32.88
3:45.65
400 Free
33.34
4:18.99
100 Free
1:06.22
450 Free
33.11
4:52.10
500 Free
32.92
5:25.02
100 Free
1:06.03
550 Free
33.10
5:58.12
600 Free
33.07
6:31.19
100 Free
1:06.17
650 Free
32.97
7:04.16
700 Free
33.09
7:37.25
100 Free
1:06.06
750 Free
33.03
8:10.28
800 Free
32.65
8:42.93
100 Free
1:05.68
850 Free
32.48
9:15.41
900 Free
32.45
9:47.86
100 Free
1:04.93
950 Free
32.31
10:20.17
1000 Free
30.85
10:51.02
100 Free
1:03.16
Back 50 Y 38.19 17 06/19/2021 B: 30.79 (+7.40s | 19.4%) 5 274 1,000+ 1,000+
Breast 50 Y 29.20 17 12/12/2025 A AA: 29.09 (+0.11s | 0.4%) 3 81 368 1,000+
Breast 100 Y 1:05.29 Analysis 17 03/14/2024 BB A: 1:03.99 (+1.30s | 2.0%) 3 198 869 1,000+
50 Breast
31.06
31.06
100 Breast
34.23
1:05.29
100 Breast
1:05.29
Breast 200 Y 2:16.73 Analysis 17 11/07/2024 A AA: 2:13.29 (+3.44s | 2.5%) 3 110 432 1,000+
50 Breast
31.50
31.50
100 Breast
34.47
1:05.97
100 Breast
1:05.97
150 Breast
35.38
1:41.35
200 Breast
35.38
2:16.73
100 Breast
1:10.76
Fly 50 Y 28.40 17 02/13/2026 B BB: 28.39 (+0.01s | 0.0%) 5 193 1,000+ 1,000+
Fly 100 Y 1:02.19 Analysis 17 02/13/2026 B BB: 1:00.79 (+1.40s | 2.3%) 8 372 1,000+ 1,000+
50 Fly
29.26
29.26
100 Fly
32.93
1:02.19
100 Fly
1:02.19
IM 200 Y 2:15.73 Analysis 17 02/13/2026 BB A: 2:06.39 (+9.34s | 6.9%) 8 325 1,000+ 1,000+
50 Fly
29.84
29.84
100 Back
36.55
1:06.39
100 IM
1:06.39
150 Breast
37.42
1:43.81
200 Free
31.92
2:15.73
100 IM
1:09.34
IM 400 Y 4:34.93 Analysis 17 12/12/2025 BB A: 4:31.99 (+2.94s | 1.1%) 7 173 611 1,000+
50 Fly
29.39
29.39
100 Fly
35.38
1:04.77
100 Fly
1:04.77
150 Back
36.61
1:41.38
200 Back
36.15
2:17.53
100 Back
1:12.76
250 Breast
37.58
2:55.11
300 Breast
36.30
3:31.41
100 Breast
1:13.88
350 Free
32.36
4:03.77
400 Free
31.16
4:34.93
100 Free
1:03.52

Long course distance

Event Time Age Date Standard Next Standard Tsm Aquatics Southern California Swimming Western Zone USA
Free 50 M 28.07 17 06/13/2024 BB A: 27.39 (+0.68s | 2.4%) 6 401 1,000+ 1,000+
Free 100 M 1:02.96 Analysis 17 06/13/2024 BB A: 59.89 (+3.07s | 4.9%) 7 452 1,000+ 1,000+
50 Free
30.13
30.13
100 Free
32.83
1:02.96
100 Free
1:02.96
Free 200 M 2:16.15 Analysis 17 06/13/2024 BB A: 2:11.09 (+5.06s | 3.7%) 6 325 1,000+ 1,000+
50 Free
31.03
31.03
100 Free
34.76
1:05.79
100 Free
1:05.79
150 Free
35.06
1:40.85
200 Free
35.29
2:16.14
100 Free
1:10.35
Free 400 M 4:51.86 Analysis 17 06/13/2024 BB A: 4:39.79 (+12.07s | 4.1%) 7 248 804 1,000+
50 Free
32.78
32.78
100 Free
36.69
1:09.47
100 Free
1:09.47
150 Free
37.10
1:46.57
200 Free
37.09
2:23.66
100 Free
1:14.19
250 Free
37.36
3:01.02
300 Free
37.11
3:38.13
100 Free
1:14.47
350 Free
37.34
4:15.47
400 Free
36.39
4:51.86
100 Free
1:13.73
Free 800 M 9:58.84 Analysis 17 07/24/2025 BB A: 9:41.09 (+17.75s | 3.0%) 8 188 455 1,000+
50 Free
33.34
33.34
100 Free
36.37
1:09.71
100 Free
1:09.71
150 Free
37.75
1:47.46
200 Free
37.44
2:24.90
100 Free
1:15.19
250 Free
38.15
3:03.05
300 Free
38.34
3:41.39
100 Free
1:16.49
350 Free
38.42
4:19.81
400 Free
38.50
4:58.31
100 Free
1:16.92
450 Free
38.19
5:36.50
500 Free
38.26
6:14.76
100 Free
1:16.45
550 Free
38.61
6:53.37
600 Free
37.56
7:30.93
100 Free
1:16.17
650 Free
37.94
8:08.87
700 Free
36.99
8:45.86
100 Free
1:14.93
750 Free
37.52
9:23.38
800 Free
35.46
9:58.84
100 Free
1:12.98
Back 200 M 2:40.43 Analysis 17 06/12/2025 B BB: 2:37.09 (+3.34s | 2.1%) 7 267 846 1,000+
50 Back
37.18
37.18
100 Back
41.05
1:18.23
100 Back
1:18.23
150 Back
41.40
1:59.63
200 Back
40.80
2:40.43
100 Back
1:22.20
Breast 50 M 32.68 17 06/11/2026 AA AAA: 31.69 (+0.99s | 3.0%) 1 66 273 660
Breast 100 M 1:11.80 Analysis 17 07/16/2026 A AA: 1:11.29 (+0.51s | 0.7%) 3 108 362 835
50 Breast
33.81
33.81
100 Breast
37.99
1:11.80
100 Breast
1:11.80
Breast 200 M 2:35.72 Analysis 17 07/16/2026 A AA: 2:35.39 (+0.33s | 0.2%) 4 80 241 557
50 Breast
35.82
35.82
100 Breast
39.25
1:15.07
100 Breast
1:15.07
150 Breast
40.50
1:55.57
200 Breast
40.15
2:35.72
100 Breast
1:20.65
IM 400 M 5:14.28 Analysis 17 06/11/2026 A AA: 5:01.89 (+12.39s | 3.9%) 8 172 471 1,000+
50 Fly
32.50
32.50
100 Fly
37.69
1:10.20
100 Fly
1:10.20
150 Back
42.87
1:53.07
200 Back
42.42
2:35.49
100 Back
1:25.29
250 Breast
41.57
3:17.06
300 Breast
42.71
3:59.77
100 Breast
1:24.28
350 Free
37.56
4:37.33
400 Free
36.95
5:14.28
100 Free
1:14.51

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