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Siobhan O'Sullivan

Age: 11 years old
Age Category: 11-12
Team: YMCA of Greater Nashua Storm | New England Swimming

Personal Best

Short course distance

Event Time Age Date Standard Next Standard YMCA of Greater Nashua Storm New England Swimming Eastern Zone USA
Free 50 Y 32.28 11 01/24/2026 B BB: 31.69 (+0.59s | 1.8%) 5 337 1,000+ 1,000+
Free 100 Y 1:09.61 Analysis 11 02/06/2026 B BB: 1:09.39 (+0.22s | 0.3%) 3 240 1,000+ 1,000+
50 Free
33.08
33.08
100 Free
36.53
1:09.61
100 Free
1:09.61
Free 200 Y 2:43.85 Analysis 11 11/14/2025 B: 2:42.59 (+1.26s | 0.8%) 6 324 1,000+ 1,000+
100 Free
1:19.58
1:19.58
100 Free
1:19.58
200 Free
1:24.27
2:43.85
100 Free
1:24.27
Free 500 Y 6:53.16 Analysis 11 03/20/2026 B BB: 6:45.69 (+7.47s | 1.8%) 2 143 904 1,000+
50 Free
35.69
35.69
100 Free
40.87
1:16.56
100 Free
1:16.56
150 Free
43.42
1:59.98
200 Free
42.28
2:42.26
100 Free
1:25.70
250 Free
42.35
3:24.61
300 Free
42.58
4:07.19
100 Free
1:24.93
350 Free
42.67
4:49.86
400 Free
42.34
5:32.20
100 Free
1:25.01
450 Free
41.83
6:14.03
500 Free
39.13
6:53.16
100 Free
1:20.96
Free 1000 Y 15:37.92 Analysis 11 10/10/2025 B: 15:02.69 (+35.23s | 3.8%) 1 53 231 599
50 Free
41.10
41.10
250 Free
3:09.23
3:50.33
400 Free
2:21.85
6:12.18
100 Free
2:21.85
500 Free
1:34.22
7:46.40
100 Free
1:34.22
650 Free
2:22.77
10:09.17
700 Free
48.31
10:57.48
100 Free
3:11.08
750 Free
48.76
11:46.24
800 Free
48.31
12:34.55
100 Free
1:37.07
1000 Free
3:03.37
15:37.92
100 Free
3:03.37
Back 50 Y 37.12 11 05/09/2026 B BB: 35.99 (+1.13s | 3.0%) 4 219 1,000+ 1,000+
Back 100 Y 1:27.21 Analysis 11 01/16/2026 B: 1:26.59 (+0.62s | 0.7%) 9 380 1,000+ 1,000+
50 Back
43.00
43.00
100 Back
44.21
1:27.21
100 Back
1:27.21
Breast 50 Y 43.81 11 05/09/2026 B BB: 40.89 (+2.92s | 6.7%) 10 309 1,000+ 1,000+
Breast 100 Y 1:37.38 Analysis 11 12/05/2025 B: 1:36.49 (+0.89s | 0.9%) 8 304 1,000+ 1,000+
50 Breast
46.63
46.63
100 Breast
50.75
1:37.38
100 Breast
1:37.38
Fly 50 Y 43.41 11 03/20/2026 B: 36.89 (+6.52s | 15.0%) 13 531 1,000+ 1,000+
Fly 100 Y 1:39.69 Analysis 11 10/26/2025 B: 1:25.79 (+13.90s | 13.9%) 6 293 1,000+ 1,000+
Fly 200 Y 3:48.82 Analysis 11 11/14/2025 B: 3:03.39 (+45.43s | 19.9%) 2 77 378 1,000+
50 Fly
47.14
47.14
100 Fly
57.91
1:45.05
100 Fly
1:45.05
150 Fly
1:03.52
2:48.57
200 Fly
1:00.25
3:48.82
100 Fly
2:03.77
IM 100 Y 1:23.73 Analysis 11 01/16/2026 B BB: 1:19.09 (+4.64s | 5.5%) 6 286 1,000+ 1,000+
50 IM
39.68
39.68
100 IM
44.05
1:23.73
100 IM
1:23.73
IM 200 Y 3:15.32 Analysis 11 03/20/2026 B: 3:03.89 (+11.43s | 5.9%) 10 374 1,000+ 1,000+
50 Fly
45.01
45.01
100 Back
50.40
1:35.41
100 IM
1:35.41
150 Breast
55.05
2:30.46
200 Free
44.86
3:15.32
100 IM
1:39.91
IM 400 Y 6:50.45 Analysis 11 12/05/2025 B: 6:31.69 (+18.76s | 4.6%) 1 105 401 1,000+
50 Fly
44.68
44.68
100 Fly
58.80
1:43.48
100 Fly
1:43.48
150 Back
53.91
2:37.39
200 Back
52.39
3:29.78
100 Back
1:46.30
250 Breast
55.40
4:25.18
300 Breast
56.28
5:21.46
100 Breast
1:51.68
350 Free
45.45
6:06.91
400 Free
43.54
6:50.45
100 Free
1:28.99

Long course distance

Event Time Age Date Standard Next Standard YMCA of Greater Nashua Storm New England Swimming Eastern Zone USA
Free 50 M 35.56 11 05/15/2026 BB A: 33.19 (+2.37s | 6.7%) 3 142 414 1,000+
Free 400 M 6:15.01 Analysis 11 05/15/2026 B BB: 6:04.79 (+10.22s | 2.7%) 1 66 246 1,000+
50 Free
39.16
39.16
100 Free
47.94
1:27.10
100 Free
1:27.10
150 Free
49.88
2:16.98
200 Free
48.93
3:05.91
100 Free
1:38.81
250 Free
47.22
3:53.13
350 Free
1:35.15
5:28.28
400 Free
46.73
6:15.01
100 Free
2:21.88
Free 1500 M 25:00.76 Analysis 11 04/24/2026 B BB: 24:14.99 (+45.77s | 3.0%) 1 2 3 105
50 Free
33.52
33.52
100 Free
53.90
1:27.42
100 Free
1:27.42
150 Free
49.59
2:17.01
200 Free
51.90
3:08.91
100 Free
1:41.49
250 Free
44.83
3:53.74
300 Free
53.97
4:47.71
100 Free
1:38.80
350 Free
48.09
5:35.80
400 Free
52.28
6:28.08
100 Free
1:40.37
450 Free
51.47
7:19.55
500 Free
51.36
8:10.91
100 Free
1:42.83
550 Free
49.47
9:00.38
600 Free
52.33
9:52.71
100 Free
1:41.80
650 Free
49.83
10:42.54
700 Free
52.30
11:34.84
100 Free
1:42.13
750 Free
49.32
12:24.16
800 Free
51.91
13:16.07
100 Free
1:41.23
850 Free
50.53
14:06.61
900 Free
52.11
14:58.72
100 Free
1:42.64
950 Free
50.71
15:49.43
1000 Free
52.44
16:41.87
100 Free
1:43.15
1050 Free
48.20
17:30.07
1100 Free
52.85
18:22.92
100 Free
1:41.05
1150 Free
50.14
19:13.06
1200 Free
52.01
20:05.07
100 Free
1:42.15
1250 Free
46.49
20:51.56
1300 Free
55.34
21:46.90
100 Free
1:41.83
1350 Free
41.53
22:28.43
1400 Free
58.87
23:27.30
100 Free
1:40.40
1450 Free
42.11
24:09.41
1500 Free
51.35
25:00.76
100 Free
1:33.46
Back 50 M 44.42 11 05/15/2026 B BB: 41.59 (+2.83s | 6.4%) 4 187 505 1,000+
Back 200 M 3:46.83 Analysis 11 04/24/2026 B: 3:28.09 (+18.74s | 8.3%) 2 109 327 1,000+
50 Back
54.07
54.07
150 Back
1:57.04
2:51.11
200 Back
55.72
3:46.83
100 Back
2:52.76
Breast 50 M 48.23 11 05/15/2026 B BB: 46.19 (+2.04s | 4.2%) 4 120 326 1,000+
Breast 100 M 1:47.66 Analysis 11 05/15/2026 B BB: 1:42.19 (+5.47s | 5.1%) 4 134 353 1,000+
Breast 200 M 3:55.28 Analysis 11 04/24/2026 B BB: 3:39.89 (+15.39s | 6.5%) 2 67 228 1,000+
50 Breast
52.79
52.79
100 Breast
59.19
1:51.98
100 Breast
1:51.98
150 Breast
1:01.07
2:53.05
200 Breast
1:02.23
3:55.28
100 Breast
2:03.30
Fly 50 M 43.81 11 05/15/2026 B: 41.79 (+2.02s | 4.6%) 3 167 479 1,000+
Fly 200 M 4:21.92 Analysis 11 04/24/2026 B: 3:31.09 (+50.83s | 19.4%) 1 19 52 325
50 Fly
52.44
52.44
100 Fly
1:06.54
1:58.98
100 Fly
1:58.98
150 Fly
1:12.18
3:11.16
200 Fly
1:10.76
4:21.92
100 Fly
2:22.94
IM 200 M 3:32.91 Analysis 11 05/15/2026 B: 3:30.59 (+2.32s | 1.1%) 3 155 434 1,000+
50 Fly
48.48
48.48
100 Back
54.55
1:43.03
100 IM
1:43.03
150 Breast
1:03.12
2:46.15
200 Free
46.76
3:32.91
100 IM
1:49.88
IM 400 M 7:43.20 Analysis 11 04/24/2026 B: 7:28.89 (+14.31s | 3.1%) 1 40 85 481
50 Fly
51.10
51.10
100 Fly
1:05.26
1:56.36
100 Fly
1:56.36
150 Back
1:01.55
2:57.91
200 Back
58.57
3:56.48
100 Back
2:00.12
250 Breast
1:00.95
4:57.43
300 Breast
1:01.13
5:58.56
100 Breast
2:02.08
350 Free
53.93
6:52.49
400 Free
50.71
7:43.20
100 Free
1:44.64

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