William O'Brien

Age: 18 years old
Age Category: 17-18
Team: Aquawolves Swimming | Colorado Swimming

Personal Best

Short course distance

Event Time Age Date Standard Next Standard Colorado Swimming Aquawolves Swimming
Free 50 Y 23.36 17 12/06/2024 A AA: 22.59 (+0.77s | 3.3%) 138 16
Free 100 Y 50.62 17 02/21/2025 A AA: 49.59 (+1.03s | 2.0%) 124 14
50 Free
24.28
24.28
100 Free
26.34
50.62
100 Free
50.62
Free 200 Y 1:55.09 16 11/01/2024 BB A: 1:54.49 (+0.60s | 0.5%) 131 12
50 Free
26.24
26.24
100 Free
28.69
54.93
100 Free
54.93
150 Free
29.88
1:24.81
200 Free
30.28
1:55.09
100 Free
1:00.16
Free 500 Y 5:52.44 17 01/24/2025 B BB: 5:37.29 (+15.15s | 4.3%) 143 8
50 Free
30.21
30.21
100 Free
34.63
1:04.84
100 Free
1:04.84
150 Free
35.69
1:40.53
200 Free
36.23
2:16.76
100 Free
1:11.92
250 Free
36.02
2:52.78
300 Free
36.41
3:29.19
100 Free
1:12.43
350 Free
36.92
4:06.11
400 Free
36.49
4:42.60
100 Free
1:13.41
450 Free
36.07
5:18.67
500 Free
33.77
5:52.44
100 Free
1:09.84
Back 100 Y 55.56 17 02/21/2025 A AA: 53.59 (+1.97s | 3.5%) 62 6
50 Back
26.41
26.41
100 Back
29.15
55.56
100 Back
55.56
Back 200 Y 2:04.56 17 12/06/2024 BB A: 2:03.29 (+1.27s | 1.0%) 50 4
50 Back
28.56
28.56
100 Back
30.77
59.33
100 Back
59.33
150 Back
32.91
1:32.24
200 Back
32.32
2:04.56
100 Back
1:05.23
Breast 100 Y 1:02.86 17 02/21/2025 A AA: 1:01.39 (+1.47s | 2.3%) 71 7
50 Breast
29.53
29.53
100 Breast
33.33
1:02.86
100 Breast
1:02.86
Breast 200 Y 2:25.24 17 02/21/2025 BB A: 2:19.09 (+6.15s | 4.2%) 71 5
50 Breast
31.90
31.90
100 Breast
37.58
1:09.48
100 Breast
1:09.48
150 Breast
38.96
1:48.44
200 Breast
36.80
2:25.24
100 Breast
1:15.76
Fly 100 Y 1:00.93 17 01/24/2025 B BB: 1:00.79 (+0.14s | 0.2%) 179 16
50 Fly
28.91
28.91
100 Fly
32.02
1:00.93
100 Fly
1:00.93
IM 200 Y 2:14.46 16 11/15/2024 BB A: 2:06.39 (+8.07s | 6.0%) 147 11
50 Fly
28.03
28.03
100 Back
36.14
1:04.17
100 IM
1:04.17
150 Breast
39.18
1:43.35
200 Free
31.11
2:14.46
100 IM
1:10.29
IM 400 Y 4:54.41 17 01/24/2025 BB A: 4:31.99 (+22.42s | 7.6%) 75 1
50 Fly
31.13
31.13
100 Fly
36.77
1:07.90
100 Fly
1:07.90
150 Back
37.97
1:45.87
200 Back
38.57
2:24.44
100 Back
1:16.54
250 Breast
41.93
3:06.37
300 Breast
40.40
3:46.77
100 Breast
1:22.33
350 Free
35.09
4:21.86
400 Free
32.55
4:54.41
100 Free
1:07.64

Long course distance

Event Time Age Date Standard Next Standard Colorado Swimming Aquawolves Swimming
Free 50 M 26.52 17 06/13/2025 A AA: 26.19 (+0.33s | 1.2%) 95 12
Free 100 M 59.57 17 06/13/2025 A AA: 57.39 (+2.18s | 3.7%) 128 13
50 Free
28.50
28.50
100 Free
31.07
59.57
100 Free
59.57
Back 100 M 1:08.12 17 07/17/2025 BB A: 1:06.49 (+1.63s | 2.4%) 67 7
50 Back
32.22
32.22
100 Back
35.89
1:08.11
100 Back
1:08.11
Breast 100 M 1:19.42 17 06/13/2025 BB A: 1:14.39 (+5.03s | 6.3%) 83 7
50 Breast
36.81
36.81
100 Breast
42.61
1:19.42
100 Breast
1:19.42
Breast 200 M 2:56.91 17 06/13/2025 B BB: 2:55.69 (+1.22s | 0.7%) 66 6
50 Breast
38.36
38.36
100 Breast
45.21
1:23.57
100 Breast
1:23.57
150 Breast
45.92
2:09.49
200 Breast
47.42
2:56.91
100 Breast
1:33.34
Fly 100 M 1:06.16 17 06/27/2025 BB A: 1:03.99 (+2.17s | 3.3%) 79 9
50 Fly
30.48
30.48
100 Fly
35.68
1:06.16
100 Fly
1:06.16
IM 200 M 2:33.41 17 07/17/2025 BB A: 2:27.39 (+6.02s | 3.9%) 99 8
50 Fly
31.43
31.43
100 Back
40.86
1:12.29
100 IM
1:12.29
150 Breast
45.27
1:57.56
200 Free
35.85
2:33.41
100 IM
1:21.12

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