William O'Brien

Age: 17 years old
Age Category: 17-18
Team: Univ of Denver Hilltoppers | Colorado Swimming
Participation: 59 meets 251 events

Personal Best

Short course distance

Event Time Age Date Standard Next Standard Colorado Swimming Univ of Denver Hilltoppers
Free 50 Y 15.74 12 01/24/2020 AAAA 27 7
Free 100 Y 50.62 17 02/21/2025 A AA: 49.59 (+1.03s | 2.0%) 165 23
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%) 175 23
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%) 256 29
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%) 84 14
50 Back
26.41
26.41
100 Back
29.15
55.56
100 Back
55.56
Back 200 Y 2:04.15 16 02/16/2024 BB A: 2:03.29 (+0.86s | 0.7%) 79 13
50 Back
29.23
29.23
100 Back
31.31
1:00.54
100 Back
1:00.54
150 Back
32.09
1:32.63
200 Back
31.52
2:04.15
100 Back
1:03.61
Breast 100 Y 1:02.86 17 02/21/2025 A AA: 1:01.39 (+1.47s | 2.3%) 86 13
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%) 94 15
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 1:00.91 16 01/19/2024 B BB: 1:00.79 (+0.12s | 0.2%) 219 26
50 Fly
28.82
28.82
100 Fly
32.09
1:00.91
100 Fly
1:00.91
Fly 200 Y 2:29.17 16 01/19/2024 B: 2:26.39 (+2.78s | 1.9%) 163 24
50 Fly
31.85
31.85
100 Fly
37.02
1:08.87
100 Fly
1:08.87
150 Fly
39.67
1:48.54
200 Fly
40.63
2:29.17
100 Fly
1:20.30
IM 200 Y 2:05.42 16 05/03/2024 A AA: 2:01.09 (+4.33s | 3.5%) 126 19
50 Fly
26.93
26.93
100 Back
30.94
57.87
100 IM
57.87
150 Breast
37.68
1:35.55
200 Free
29.87
2:05.42
100 IM
1:07.55
IM 400 Y 4:54.41 17 01/24/2025 BB A: 4:31.99 (+22.42s | 7.6%) 142 23
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 Univ of Denver Hilltoppers
Free 50 M 27.15 16 06/14/2024 A AA: 26.19 (+0.96s | 3.5%) 157 21
Free 100 M 59.41 16 06/14/2024 A AA: 57.39 (+2.02s | 3.4%) 154 21
50 Free
28.70
28.70
100 Free
30.71
59.41
100 Free
59.41
Free 200 M 2:21.34 16 06/28/2024 BB A: 2:11.09 (+10.25s | 7.3%) 217 25
50 Free
30.45
30.45
100 Free
35.85
1:06.30
100 Free
1:06.30
150 Free
37.60
1:43.90
200 Free
37.44
2:21.34
100 Free
1:15.04
Free 400 M 5:04.66 16 06/28/2024 B BB: 5:03.09 (+1.57s | 0.5%) 162 19
50 Free
33.87
33.87
100 Free
39.47
1:13.34
100 Free
1:13.34
150 Free
39.33
1:52.67
200 Free
40.63
2:33.30
100 Free
1:19.96
250 Free
39.19
3:12.49
300 Free
39.27
3:51.76
100 Free
1:18.46
350 Free
37.54
4:29.30
400 Free
35.36
5:04.66
100 Free
1:12.90
Back 100 M 1:08.34 16 06/14/2024 BB A: 1:06.49 (+1.85s | 2.7%) 104 15
50 Back
32.11
32.11
100 Back
36.22
1:08.34
100 Back
1:08.34
Back 200 M 2:31.32 15 07/20/2023 BB A: 2:24.99 (+6.33s | 4.2%) 96 13
Breast 100 M 1:21.12 16 07/13/2024 B BB: 1:20.59 (+0.53s | 0.7%) 130 18
50 Breast
39.28
39.28
100 Breast
41.84
1:21.12
100 Breast
1:21.12
Breast 200 M 2:53.23 16 06/14/2024 BB A: 2:42.19 (+11.04s | 6.4%) 84 14
50 Breast
38.66
38.66
100 Breast
45.14
1:23.80
100 Breast
1:23.80
150 Breast
43.98
2:07.78
200 Breast
45.45
2:53.23
100 Breast
1:29.43
Fly 100 M 1:11.27 16 06/28/2024 B BB: 1:09.29 (+1.98s | 2.8%) 195 26
50 Fly
32.81
32.81
100 Fly
38.46
1:11.27
100 Fly
1:11.27
IM 200 M 2:39.81 15 07/07/2023 B BB: 2:39.59 (+0.22s | 0.1%) 192 22

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.