Madeleine Koser

Age: 13 years old
Age Category: 13-14
Team: Rockville Montgomery Swim Club | Potomac Valley Swimming

Personal Best

Short course distance

Event Time Age Date Standard Next Standard Potomac Valley Swimming Rockville Montgomery Swim Club
Free 50 Y 28.43 13 11/07/2025 BB A: 27.89 (+0.54s | 1.9%) 104 9
Free 100 Y 1:01.29 13 11/07/2025 BB A: 1:00.89 (+0.40s | 0.7%) 75 8
50 Free
29.83
29.83
100 Free
31.46
1:01.29
100 Free
1:01.29
Free 200 Y 2:12.93 13 11/07/2025 BB A: 2:11.69 (+1.24s | 0.9%) 70 7
50 Free
31.00
31.00
100 Free
32.54
1:03.54
100 Free
1:03.54
150 Free
34.14
1:37.68
200 Free
35.25
2:12.93
100 Free
1:09.39
Free 1000 Y 12:24.68 13 11/07/2025 BB A: 12:09.49 (+15.19s | 2.0%) 27 3
50 Free
32.72
32.72
100 Free
36.24
1:08.97
100 Free
1:08.97
150 Free
37.34
1:46.31
200 Free
37.76
2:24.07
100 Free
1:15.10
250 Free
38.16
3:02.23
300 Free
37.06
3:39.29
100 Free
1:15.22
350 Free
37.92
4:17.21
400 Free
38.35
4:55.56
100 Free
1:16.27
450 Free
37.40
5:32.96
500 Free
37.77
6:10.73
100 Free
1:15.17
550 Free
37.87
6:48.60
600 Free
37.87
7:26.47
100 Free
1:15.74
650 Free
38.15
8:04.62
700 Free
38.18
8:42.80
100 Free
1:16.33
750 Free
37.94
9:20.74
800 Free
37.70
9:58.44
100 Free
1:15.64
850 Free
37.96
10:36.40
900 Free
37.71
11:14.11
100 Free
1:15.67
950 Free
36.56
11:50.67
1000 Free
34.01
12:24.68
100 Free
1:10.57
Breast 100 Y 1:17.90 13 11/07/2025 BB A: 1:15.99 (+1.91s | 2.5%) 47 3
50 Breast
38.01
38.01
100 Breast
39.89
1:17.90
100 Breast
1:17.90
Breast 200 Y 2:52.96 13 11/07/2025 BB A: 2:43.79 (+9.17s | 5.3%) 61 9
50 Breast
39.36
39.36
100 Breast
44.99
1:24.35
100 Breast
1:24.35
150 Breast
43.35
2:07.70
200 Breast
45.26
2:52.96
100 Breast
1:28.61

Long course distance

Event Time Age Date Standard Next Standard Potomac Valley Swimming Rockville Montgomery Swim Club

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