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Benjamin Guo

Age: 15 years old
Age Category: 15-16
Team: Rancho San Dieguito | San Diego-Imperial Swimming

Personal Best

Short course distance

Event Time Age Date Standard Next Standard Rancho San Dieguito San Diego-Imperial Swimming Western Zone USA
Free 50 Y 24.09 15 12/19/2025 A AA: 23.19 (+0.90s | 3.7%) 6 51 1,000+ 1,000+
Free 100 Y 51.03 Analysis 15 12/19/2025 A AA: 50.99 (+0.04s | 0.1%) 3 30 654 1,000+
50 Free
25.16
25.16
100 Free
25.87
51.03
100 Free
51.03
Free 200 Y 1:49.82 Analysis 15 02/13/2026 AA AAA: 1:46.89 (+2.93s | 2.7%) 3 19 410 1,000+
50 Free
26.31
26.31
100 Free
27.77
54.08
100 Free
54.08
150 Free
28.21
1:22.29
200 Free
27.53
1:49.82
100 Free
55.74
Free 500 Y 4:59.57 Analysis 15 09/20/2025 AA AAA: 4:49.49 (+10.08s | 3.4%) 4 17 388 1,000+
50 Free
27.57
27.57
100 Free
29.82
57.39
100 Free
57.39
150 Free
30.70
1:28.09
200 Free
30.78
1:58.87
100 Free
1:01.48
250 Free
30.72
2:29.59
300 Free
30.74
3:00.33
100 Free
1:01.46
350 Free
30.80
3:31.13
400 Free
30.18
4:01.31
100 Free
1:00.98
450 Free
29.77
4:31.08
500 Free
28.49
4:59.57
100 Free
58.26
Free 1000 Y 11:02.94 Analysis 15 11/15/2024 BB A: 11:01.59 (+1.35s | 0.2%) 2 17 432 1,000+
50 Free
29.48
29.48
100 Free
32.54
1:02.02
100 Free
1:02.02
150 Free
33.51
1:35.54
200 Free
33.61
2:09.15
100 Free
1:07.12
250 Free
33.55
2:42.70
300 Free
33.85
3:16.55
100 Free
1:07.40
350 Free
34.06
3:50.61
400 Free
34.02
4:24.63
100 Free
1:08.08
450 Free
33.96
4:58.59
500 Free
34.42
5:33.01
100 Free
1:08.38
550 Free
34.07
6:07.08
600 Free
34.15
6:41.23
100 Free
1:08.22
650 Free
33.54
7:14.77
700 Free
33.83
7:48.60
100 Free
1:07.37
750 Free
33.23
8:21.83
800 Free
33.77
8:55.60
100 Free
1:07.00
850 Free
32.56
9:28.16
900 Free
32.69
10:00.85
100 Free
1:05.25
950 Free
32.11
10:32.96
1000 Free
29.98
11:02.94
100 Free
1:02.09
Free 1650 Y 18:59.88 Analysis 15 12/06/2024 BB A: 18:22.79 (+37.09s | 3.3%) 2 12 478 1,000+
50 Free
29.71
29.71
100 Free
33.94
1:03.65
100 Free
1:03.65
150 Free
34.61
1:38.26
200 Free
35.54
2:13.80
100 Free
1:10.15
250 Free
35.13
2:48.93
300 Free
35.41
3:24.34
100 Free
1:10.54
350 Free
35.34
3:59.68
400 Free
34.97
4:34.65
100 Free
1:10.31
450 Free
35.84
5:10.49
500 Free
34.50
5:44.99
100 Free
1:10.34
550 Free
34.72
6:19.71
600 Free
35.78
6:55.49
100 Free
1:10.50
650 Free
34.72
7:30.21
700 Free
36.09
8:06.30
100 Free
1:10.81
750 Free
33.41
8:39.71
800 Free
34.19
9:13.90
100 Free
1:07.60
850 Free
35.19
9:49.09
900 Free
34.81
10:23.90
100 Free
1:10.00
950 Free
35.62
10:59.52
1000 Free
35.13
11:34.65
100 Free
1:10.75
1050 Free
34.65
12:09.30
1100 Free
34.69
12:43.99
100 Free
1:09.34
1150 Free
36.10
13:20.09
1200 Free
34.90
13:54.99
100 Free
1:11.00
1250 Free
35.13
14:30.12
1300 Free
33.59
15:03.71
100 Free
1:08.72
1350 Free
34.59
15:38.30
1400 Free
34.32
16:12.62
100 Free
1:08.91
1450 Free
35.65
16:48.27
1500 Free
33.82
17:22.09
100 Free
1:09.47
1550 Free
32.78
17:54.87
1600 Free
33.40
18:28.27
100 Free
1:06.18
1650 Free
31.61
18:59.88
Back 50 Y 30.40 15 01/18/2025 6 38 1,000+ 1,000+
Back 100 Y 1:01.40 Analysis 15 10/24/2025 BB A: 57.89 (+3.51s | 5.7%) 5 41 989 1,000+
50 Back
30.74
30.74
100 Back
30.66
1:01.40
100 Back
1:01.40
Back 200 Y 2:14.36 Analysis 15 02/14/2025 BB A: 2:06.59 (+7.77s | 5.8%) 2 26 820 1,000+
50 Back
31.64
31.64
100 Back
33.85
1:05.49
100 Back
1:05.49
150 Back
35.31
1:40.80
200 Back
33.56
2:14.36
100 Back
1:08.87
Breast 50 Y 33.16 15 10/24/2025 6 50 788 1,000+
Breast 100 Y 1:08.43 Analysis 15 10/25/2024 BB A: 1:05.89 (+2.54s | 3.7%) 6 53 884 1,000+
50 Breast
32.78
32.78
100 Breast
35.65
1:08.43
100 Breast
1:08.43
Breast 200 Y 2:28.92 Analysis 15 12/21/2024 BB A: 2:23.19 (+5.73s | 3.8%) 4 33 670 1,000+
50 Breast
34.65
34.65
100 Breast
37.53
1:12.18
100 Breast
1:12.18
150 Breast
38.46
1:50.64
200 Breast
38.28
2:28.92
100 Breast
1:16.74
Fly 50 Y 25.86 15 12/19/2025 5 25 414 1,000+
Fly 100 Y 54.99 Analysis 15 02/13/2026 AA AAA: 52.79 (+2.20s | 4.0%) 2 17 383 1,000+
50 Fly
26.80
26.80
100 Fly
28.19
54.99
100 Fly
54.99
Fly 200 Y 1:58.80 Analysis 15 02/13/2026 AA AAA: 1:58.09 (+0.71s | 0.6%) 2 9 143 447
50 Fly
27.69
27.69
100 Fly
30.13
57.82
100 Fly
57.82
150 Fly
30.28
1:28.10
200 Fly
30.70
1:58.80
100 Fly
1:00.98
IM 200 Y 2:02.90 Analysis 15 02/13/2026 AA AAA: 1:58.59 (+4.31s | 3.5%) 1 12 358 1,000+
50 Fly
26.78
26.78
100 Back
33.49
1:00.27
100 IM
1:00.27
150 Breast
35.22
1:35.49
200 Free
27.41
2:02.90
100 IM
1:02.63
IM 400 Y 4:29.47 Analysis 15 04/03/2025 A AA: 4:24.69 (+4.78s | 1.8%) 3 13 383 1,000+
50 Fly
29.05
29.05
100 Fly
31.72
1:00.77
100 Fly
1:00.77
150 Back
36.29
1:37.06
200 Back
35.86
2:12.92
100 Back
1:12.15
250 Breast
37.93
2:50.85
300 Breast
38.57
3:29.42
100 Breast
1:16.50
350 Free
31.04
4:00.46
400 Free
29.01
4:29.47
100 Free
1:00.05

Long course distance

Event Time Age Date Standard Next Standard Rancho San Dieguito San Diego-Imperial Swimming Western Zone USA
Free 50 M 27.61 15 07/24/2025 A AA: 26.99 (+0.62s | 2.2%) 3 41 741 1,000+
Free 100 M 58.57 Analysis 15 06/20/2025 AA AAA: 56.39 (+2.18s | 3.7%) 2 22 399 977
50 Free
28.60
28.60
100 Free
29.97
58.57
100 Free
58.57
Free 200 M 2:05.54 Analysis 15 07/24/2025 AA AAA: 2:03.09 (+2.45s | 2.0%) 2 12 210 509
50 Free
28.81
28.81
100 Free
30.88
59.69
100 Free
59.69
150 Free
32.52
1:32.21
200 Free
33.33
2:05.54
100 Free
1:05.85
Free 400 M 4:37.21 Analysis 15 08/06/2025 A AA: 4:34.39 (+2.82s | 1.0%) 4 16 357 810
Back 50 M 36.60 15 05/26/2023 3 22 735 1,000+
Back 100 M 1:13.32 Analysis 15 07/11/2025 BB A: 1:07.99 (+5.33s | 7.3%) 4 30 780 1,000+
Back 200 M 2:32.44 Analysis 15 08/06/2025 BB A: 2:27.69 (+4.75s | 3.1%) 1 12 408 947
Breast 50 M 40.56 15 07/28/2022 4 21 591 1,000+
Breast 100 M 1:17.32 Analysis 15 07/11/2025 BB A: 1:16.69 (+0.63s | 0.8%) 3 17 412 904
Breast 200 M 3:05.32 Analysis 15 07/28/2022 B BB: 3:00.59 (+4.73s | 2.6%) 3 29 730 1,000+
Fly 50 M 32.35 15 05/26/2023 3 25 544 1,000+
Fly 100 M 1:04.55 Analysis 15 07/24/2025 A AA: 1:03.09 (+1.46s | 2.3%) 4 16 349 796
50 Fly
30.94
30.94
100 Fly
33.61
1:04.55
100 Fly
1:04.55
Fly 200 M 2:40.52 Analysis 15 08/02/2023 B BB: 2:39.49 (+1.03s | 0.6%) 3 18 415 875
50 Fly
34.43
34.43
100 Fly
39.53
1:13.96
100 Fly
1:13.96
150 Fly
43.01
1:56.97
200 Fly
43.55
2:40.52
100 Fly
1:26.56
IM 200 M 2:22.52 Analysis 15 07/24/2025 AA AAA: 2:18.39 (+4.13s | 2.9%) 2 5 238 531
50 Fly
31.25
31.25
100 Back
37.32
1:08.57
100 IM
1:08.57
150 Breast
41.43
1:50.00
200 Free
32.52
2:22.52
100 IM
1:13.95
IM 400 M 5:04.98 Analysis 15 08/06/2025 AA AAA: 4:54.39 (+10.59s | 3.5%) 2 7 195 425
50 Fly
31.50
31.50
100 Fly
35.52
1:07.02
100 Fly
1:07.02
150 Back
41.36
1:48.38
200 Back
41.12
2:29.50
100 Back
1:22.48
250 Breast
44.21
3:13.71
300 Breast
45.51
3:59.22
100 Breast
1:29.72
350 Free
33.68
4:32.90
400 Free
32.08
5:04.98
100 Free
1:05.76

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