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Yu-Sen Lo

Age: 15 years old
Age Category: 15-16
Team: Alto Swim Club | Pacific Swimming

Personal Best

Short course distance

Event Time Age Date Standard Next Standard Alto Swim Club Pacific Swimming Western Zone USA
Free 50 Y 23.85 15 12/19/2025 A AA: 23.19 (+0.66s | 2.8%) 16 187 883 1,000+
Free 100 Y 51.32 Analysis 15 02/13/2026 A AA: 50.99 (+0.33s | 0.6%) 15 157 730 1,000+
50 Free
24.74
24.74
100 Free
26.58
51.32
100 Free
51.32
Free 200 Y 1:51.38 Analysis 15 02/13/2026 AA AAA: 1:46.89 (+4.49s | 4.0%) 12 120 546 1,000+
Free 500 Y 5:00.14 Analysis 15 01/17/2026 AA AAA: 4:49.49 (+10.65s | 3.5%) 8 98 404 1,000+
50 Free
26.07
26.07
100 Free
30.03
56.10
100 Free
56.10
150 Free
30.65
1:26.75
200 Free
30.52
1:57.27
100 Free
1:01.17
250 Free
30.89
2:28.16
300 Free
30.98
2:59.14
100 Free
1:01.87
350 Free
30.90
3:30.04
400 Free
30.72
4:00.76
100 Free
1:01.62
450 Free
30.67
4:31.43
500 Free
28.71
5:00.14
100 Free
59.38
Free 1000 Y 10:50.02 Analysis 15 12/19/2025 A AA: 10:33.99 (+16.03s | 2.5%) 7 87 381 1,000+
Free 1650 Y 18:03.12 Analysis 15 12/19/2025 A AA: 17:36.89 (+26.23s | 2.4%) 8 84 333 940
50 Free
26.57
26.57
100 Free
29.42
55.99
100 Free
55.99
150 Free
31.78
1:27.77
200 Free
32.09
1:59.86
100 Free
1:03.87
250 Free
32.25
2:32.11
300 Free
32.72
3:04.84
100 Free
1:04.98
350 Free
32.62
3:37.46
400 Free
33.16
4:10.62
100 Free
1:05.78
450 Free
33.38
4:44.00
500 Free
33.04
5:17.04
100 Free
1:06.42
550 Free
32.84
5:49.88
600 Free
33.25
6:23.13
100 Free
1:06.09
650 Free
33.45
6:56.58
700 Free
33.05
7:29.63
100 Free
1:06.50
750 Free
33.38
8:03.01
800 Free
32.94
8:35.95
100 Free
1:06.32
850 Free
33.35
9:09.30
900 Free
33.51
9:42.81
100 Free
1:06.86
950 Free
33.92
10:16.73
1000 Free
33.29
10:50.02
100 Free
1:07.21
1050 Free
33.59
11:23.61
1100 Free
33.75
11:57.36
100 Free
1:07.34
1150 Free
33.36
12:30.72
1200 Free
33.87
13:04.59
100 Free
1:07.23
1250 Free
34.02
13:38.61
1300 Free
33.82
14:12.43
100 Free
1:07.84
1350 Free
32.98
14:45.41
1400 Free
33.72
15:19.13
100 Free
1:06.70
1450 Free
33.73
15:52.86
1500 Free
34.11
16:26.97
100 Free
1:07.84
1550 Free
32.94
16:59.91
1600 Free
33.12
17:33.03
100 Free
1:06.06
1650 Free
30.09
18:03.12
Back 50 Y 31.64 15 11/09/2024 17 248 1,000+ 1,000+
Back 100 Y 1:00.48 Analysis 15 12/19/2025 BB A: 57.89 (+2.59s | 4.3%) 16 191 874 1,000+
50 Back
29.06
29.06
100 Back
31.42
1:00.48
100 Back
1:00.48
Back 200 Y 2:13.85 Analysis 15 01/17/2026 BB A: 2:06.59 (+7.26s | 5.4%) 17 171 817 1,000+
50 Back
29.92
29.92
100 Back
33.45
1:03.37
100 Back
1:03.37
150 Back
35.11
1:38.48
200 Back
35.37
2:13.85
100 Back
1:10.48
Breast 50 Y 29.27 15 12/19/2025 5 52 235 648
Breast 100 Y 1:02.82 Analysis 15 01/24/2026 AA AAA: 1:00.39 (+2.43s | 3.9%) 10 84 321 1,000+
50 Breast
29.58
29.58
100 Breast
33.24
1:02.82
100 Breast
1:02.82
Breast 200 Y 2:16.11 Analysis 15 04/09/2026 AA AAA: 2:11.29 (+4.82s | 3.5%) 11 72 250 719
50 Breast
29.61
29.61
100 Breast
33.64
1:03.25
100 Breast
1:03.25
150 Breast
35.78
1:39.03
200 Breast
37.08
2:16.11
100 Breast
1:12.86
Fly 50 Y 25.32 15 02/13/2026 11 77 308 932
Fly 100 Y 54.54 Analysis 15 01/24/2026 AA AAA: 52.79 (+1.75s | 3.2%) 11 90 345 1,000+
50 Fly
25.54
25.54
100 Fly
29.00
54.54
100 Fly
54.54
Fly 200 Y 1:57.93 Analysis 15 02/07/2026 AAA AAAA: 1:52.69 (+5.24s | 4.4%) 4 41 132 394
50 Fly
25.62
25.62
100 Fly
29.55
55.17
100 Fly
55.17
150 Fly
30.81
1:25.98
200 Fly
31.95
1:57.93
100 Fly
1:02.76
IM 200 Y 2:03.86 Analysis 15 12/19/2025 AA AAA: 1:58.59 (+5.27s | 4.3%) 12 101 428 1,000+
50 Fly
25.43
25.43
100 Back
33.10
58.53
100 IM
58.53
150 Breast
34.56
1:33.09
200 Free
30.77
2:03.86
100 IM
1:05.33
IM 400 Y 4:24.46 Analysis 15 01/17/2026 AA AAA: 4:13.19 (+11.27s | 4.3%) 9 75 293 914
50 Fly
13.70
13.70
100 Fly
13.03
26.73
100 Fly
26.73
150 Back
31.00
57.73
200 Back
36.32
1:34.05
100 Back
1:07.32
250 Breast
36.40
2:10.45
300 Breast
36.06
2:46.51
100 Breast
1:12.46
350 Free
37.45
3:23.96
400 Free
1:00.50
4:24.46
100 Free
1:37.95

Long course distance

Event Time Age Date Standard Next Standard Alto Swim Club Pacific Swimming Western Zone USA
Free 50 M 27.45 15 07/11/2025 A AA: 26.99 (+0.46s | 1.7%) 12 160 681 1,000+
Free 100 M 1:02.17 Analysis 15 06/27/2025 BB A: 1:01.49 (+0.68s | 1.1%) 15 220 1,000+ 1,000+
Free 200 M 2:14.74 Analysis 15 06/27/2025 BB A: 2:14.29 (+0.45s | 0.3%) 12 159 722 1,000+
Free 400 M 5:01.28 Analysis 15 06/07/2024 BB A: 4:46.39 (+14.89s | 4.9%) 11 188 818 1,000+
Free 1500 M 19:58.22 Analysis 15 06/07/2024 BB A: 18:58.49 (+59.73s | 5.0%) 6 84 373 741
Back 50 M 45.70 15 06/09/2023 16 327 1,000+ 1,000+
Back 100 M 1:16.40 Analysis 15 06/27/2025 B BB: 1:13.69 (+2.71s | 3.5%) 13 229 1,000+ 1,000+
Back 200 M 3:03.11 Analysis 15 04/27/2024 B: 2:52.29 (+10.82s | 5.9%) 14 251 1,000+ 1,000+
Breast 50 M 34.59 15 06/27/2025 3 30 154 386
Breast 100 M 1:14.56 Analysis 15 07/31/2025 A AA: 1:13.49 (+1.07s | 1.4%) 6 70 290 599
Breast 200 M 2:45.10 Analysis 15 07/31/2025 A AA: 2:39.79 (+5.31s | 3.2%) 8 68 268 565
Fly 50 M 28.80 15 06/27/2025 5 20 128 360
Fly 100 M 1:03.08 Analysis 15 07/31/2025 AA AAA: 1:00.29 (+2.79s | 4.4%) 6 65 253 578
Fly 200 M 2:21.88 Analysis 15 07/11/2025 A AA: 2:21.09 (+0.79s | 0.6%) 2 41 156 359
IM 200 M 2:26.93 Analysis 15 07/31/2025 A AA: 2:24.69 (+2.24s | 1.5%) 6 104 419 938
IM 400 M 5:14.23 Analysis 15 07/11/2025 A AA: 5:07.79 (+6.44s | 2.0%) 6 83 314 658

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