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Josiah Sentosa

Age: 15 years old
Age Category: 15-16
Team: Brea Aquatics | Southern California Swimming

Personal Best

Short course distance

Event Time Age Date Standard Next Standard Brea Aquatics Southern California Swimming Western Zone USA
Free 50 Y 24.79 15 02/13/2026 BB A: 24.19 (+0.60s | 2.4%) 7 292 1,000+ 1,000+
Free 100 Y 54.20 15 02/13/2026 BB A: 53.19 (+1.01s | 1.9%) 10 327 1,000+ 1,000+
50 Free
26.33
26.33
100 Free
27.87
54.20
100 Free
54.20
Free 200 Y 1:56.58 15 11/21/2025 A AA: 1:51.79 (+4.79s | 4.1%) 8 224 969 1,000+
50 Free
26.85
26.85
100 Free
29.33
56.18
100 Free
56.18
150 Free
30.33
1:26.51
200 Free
30.07
1:56.58
100 Free
1:00.40
Free 500 Y 5:07.67 15 12/12/2025 A AA: 5:02.69 (+4.98s | 1.6%) 5 147 562 1,000+
50 Free
28.05
28.05
100 Free
30.08
58.13
100 Free
58.13
150 Free
30.52
1:28.65
200 Free
30.99
1:59.64
100 Free
1:01.51
250 Free
31.33
2:30.97
300 Free
31.54
3:02.51
100 Free
1:02.87
350 Free
31.63
3:34.14
400 Free
31.77
4:05.91
100 Free
1:03.40
450 Free
31.65
4:37.56
500 Free
30.11
5:07.67
100 Free
1:01.76
Free 1000 Y 10:30.02 15 12/12/2025 AA AAA: 10:06.39 (+23.63s | 3.8%) 2 67 237 799
50 Free
28.22
28.22
100 Free
30.78
59.00
100 Free
59.00
150 Free
31.02
1:30.02
200 Free
31.28
2:01.30
100 Free
1:02.30
250 Free
31.66
2:32.96
300 Free
31.54
3:04.50
100 Free
1:03.20
350 Free
31.94
3:36.44
400 Free
31.90
4:08.34
100 Free
1:03.84
450 Free
32.08
4:40.42
500 Free
31.89
5:12.31
100 Free
1:03.97
550 Free
31.69
5:44.00
600 Free
31.99
6:15.99
100 Free
1:03.68
650 Free
31.96
6:47.95
700 Free
32.00
7:19.95
100 Free
1:03.96
750 Free
32.23
7:52.18
800 Free
32.01
8:24.19
100 Free
1:04.24
850 Free
31.93
8:56.12
900 Free
32.05
9:28.17
100 Free
1:03.98
950 Free
31.72
9:59.89
1000 Free
30.13
10:30.02
100 Free
1:01.85
Free 1650 Y 17:32.44 15 02/13/2026 AA AAA: 16:50.89 (+41.55s | 3.9%) 3 56 226 686
50 Free
28.84
28.84
100 Free
31.35
1:00.19
100 Free
1:00.19
150 Free
31.72
1:31.91
200 Free
31.87
2:03.78
100 Free
1:03.59
250 Free
31.97
2:35.75
300 Free
32.23
3:07.98
100 Free
1:04.20
350 Free
32.27
3:40.25
400 Free
32.17
4:12.42
100 Free
1:04.44
450 Free
32.23
4:44.65
500 Free
32.37
5:17.02
100 Free
1:04.60
550 Free
32.32
5:49.34
600 Free
32.56
6:21.90
100 Free
1:04.88
650 Free
32.45
6:54.35
700 Free
32.46
7:26.81
100 Free
1:04.91
750 Free
31.97
7:58.78
800 Free
32.37
8:31.15
100 Free
1:04.34
850 Free
32.47
9:03.62
900 Free
32.18
9:35.80
100 Free
1:04.65
950 Free
31.96
10:07.76
1000 Free
32.01
10:39.77
100 Free
1:03.97
1050 Free
31.82
11:11.59
1100 Free
31.92
11:43.51
100 Free
1:03.74
1150 Free
31.87
12:15.38
1200 Free
31.67
12:47.05
100 Free
1:03.54
1250 Free
31.97
13:19.02
1300 Free
32.14
13:51.16
100 Free
1:04.11
1350 Free
32.02
14:23.18
1400 Free
32.19
14:55.37
100 Free
1:04.21
1450 Free
31.92
15:27.29
1500 Free
31.97
15:59.26
100 Free
1:03.89
1550 Free
32.09
16:31.35
1600 Free
31.23
17:02.58
100 Free
1:03.32
1650 Free
29.85
17:32.43
Back 50 Y 27.59 15 12/12/2025 3 87 433 1,000+
Back 100 Y 57.84 15 12/12/2025 A AA: 55.49 (+2.35s | 4.1%) 4 106 483 1,000+
50 Back
28.63
28.63
100 Back
29.21
57.84
100 Back
57.84
550 Back
-29.-27
28.57
600 Back
29.27
57.84
100 Back
0.00
Back 200 Y 2:03.50 15 12/12/2025 A AA: 2:01.29 (+2.21s | 1.8%) 3 71 292 1,000+
50 Back
28.93
28.93
100 Back
31.02
59.95
100 Back
59.95
150 Back
31.84
1:31.79
200 Back
31.71
2:03.50
100 Back
1:03.55
Breast 100 Y 1:07.83 15 11/21/2025 BB A: 1:05.89 (+1.94s | 2.9%) 6 182 779 1,000+
50 Breast
32.29
32.29
100 Breast
35.54
1:07.83
100 Breast
1:07.83
Breast 200 Y 2:44.99 14 12/13/2024 B BB: 2:35.19 (+9.80s | 5.9%) 8 226 1,000+ 1,000+
50 Breast
37.51
37.51
100 Breast
42.69
1:20.20
100 Breast
1:20.20
150 Breast
42.92
2:03.12
200 Breast
41.87
2:44.99
100 Breast
1:24.79
IM 200 Y 2:10.74 15 11/21/2025 BB A: 2:09.39 (+1.35s | 1.0%) 7 207 833 1,000+
50 Fly
28.99
28.99
100 Back
32.66
1:01.65
100 IM
1:01.65
150 Breast
39.31
1:40.96
200 Free
29.78
2:10.74
100 IM
1:09.09
IM 400 Y 4:30.62 15 02/13/2026 A AA: 4:24.69 (+5.93s | 2.2%) 6 115 397 1,000+
50 Fly
28.95
28.95
100 Fly
33.31
1:02.26
100 Fly
1:02.26
150 Back
34.18
1:36.44
200 Back
32.23
2:08.67
100 Back
1:06.41
250 Breast
39.32
2:47.99
300 Breast
40.21
3:28.20
100 Breast
1:19.53
350 Free
32.37
4:00.57
400 Free
30.05
4:30.62
100 Free
1:02.42

Long course distance

Event Time Age Date Standard Next Standard Brea Aquatics Southern California Swimming Western Zone USA
Free 100 M 1:11.88 12 07/21/2022 B: 1:11.79 (+0.09s | 0.1%) 10 389 1,000+ 1,000+
Free 200 M 2:24.59 13 07/20/2023 BB A: 2:14.29 (+10.30s | 7.1%) 9 289 1,000+ 1,000+
50 Free
34.05
34.05
100 Free
36.99
1:11.04
100 Free
1:11.04
150 Free
37.58
1:48.62
200 Free
35.97
2:24.59
100 Free
1:13.55
Free 400 M 4:42.70 15 06/12/2025 A AA: 4:34.39 (+8.31s | 2.9%) 5 143 472 1,000+
Free 800 M 9:28.27 15 07/23/2025 AA AAA: 9:05.29 (+22.98s | 4.0%) 4 74 185 426
Free 1500 M 17:55.13 15 07/23/2025 AA AAA: 17:23.59 (+31.54s | 2.9%) 3 34 109 274
50 Free
31.72
31.72
100 Free
34.43
1:06.15
100 Free
1:06.15
150 Free
35.07
1:41.22
200 Free
35.33
2:16.55
100 Free
1:10.40
250 Free
35.67
2:52.22
300 Free
36.17
3:28.39
100 Free
1:11.84
350 Free
36.13
4:04.52
400 Free
36.43
4:40.95
100 Free
1:12.56
450 Free
36.22
5:17.17
500 Free
36.02
5:53.19
100 Free
1:12.24
550 Free
35.99
6:29.18
600 Free
36.08
7:05.26
100 Free
1:12.07
650 Free
35.89
7:41.15
700 Free
36.57
8:17.72
100 Free
1:12.46
750 Free
36.19
8:53.91
800 Free
36.41
9:30.32
100 Free
1:12.60
850 Free
35.98
10:06.30
900 Free
36.57
10:42.87
100 Free
1:12.55
950 Free
35.73
11:18.60
1000 Free
36.39
11:54.99
100 Free
1:12.12
1050 Free
36.11
12:31.10
1100 Free
36.41
13:07.51
100 Free
1:12.52
1150 Free
36.30
13:43.81
1200 Free
36.78
14:20.59
100 Free
1:13.08
1250 Free
36.31
14:56.90
1300 Free
36.30
15:33.20
100 Free
1:12.61
1350 Free
36.16
16:09.36
1400 Free
36.28
16:45.64
100 Free
1:12.44
1450 Free
35.20
17:20.84
1500 Free
34.29
17:55.13
100 Free
1:09.49
Back 50 M 31.73 15 07/23/2025 3 56 226 579
Back 100 M 1:07.31 15 07/23/2025 A AA: 1:05.19 (+2.12s | 3.1%) 4 88 292 780
Back 200 M 2:22.06 15 06/12/2025 A AA: 2:21.49 (+0.57s | 0.4%) 1 45 145 386
IM 200 M 2:41.38 14 05/05/2024 BB A: 2:30.99 (+10.39s | 6.4%) 7 241 956 1,000+
50 Fly
30.91
30.91
100 Back
44.13
1:15.04
100 IM
1:15.04
150 Breast
44.29
1:59.33
200 Free
42.05
2:41.38
100 IM
1:26.34
IM 400 M 5:14.57 15 07/23/2025 A AA: 5:07.79 (+6.78s | 2.2%) 7 104 308 681

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