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Jocelyn Guo

Age: 15 years old
Age Category: 15-16
Team: Palo Alto Stanford Aquatics | Pacific Swimming

Personal Best

Short course distance

Event Time Age Date Standard Next Standard Palo Alto Stanford Aquatics Pacific Swimming Western Zone USA
Free 50 Y 26.16 15 02/13/2026 A AA: 26.09 (+0.07s | 0.3%) 20 149 740 1,000+
Free 100 Y 56.77 Analysis 15 11/01/2025 A AA: 56.49 (+0.28s | 0.5%) 21 155 704 1,000+
Free 200 Y 2:04.89 Analysis 15 12/20/2025 A AA: 2:02.39 (+2.50s | 2.0%) 17 152 730 1,000+
50 Free
29.83
29.83
100 Free
32.81
1:02.64
100 Free
1:02.64
150 Free
31.47
1:34.11
200 Free
30.78
2:04.89
100 Free
1:02.25
Free 500 Y 5:52.19 Analysis 15 02/22/2025 BB A: 5:43.69 (+8.50s | 2.4%) 21 194 943 1,000+
Free 1000 Y 12:15.27 Analysis 15 11/15/2025 BB A: 11:53.99 (+21.28s | 2.9%) 13 97 473 1,000+
Free 1650 Y 20:55.62 Analysis 15 11/11/2023 BB A: 19:56.49 (+59.13s | 4.7%) 9 105 514 1,000+
50 Free
33.04
33.04
100 Free
36.55
1:09.59
100 Free
1:09.59
150 Free
37.57
1:47.16
200 Free
38.27
2:25.43
100 Free
1:15.84
250 Free
38.31
3:03.74
300 Free
38.23
3:41.97
100 Free
1:16.54
350 Free
38.80
4:20.77
400 Free
38.51
4:59.28
100 Free
1:17.31
450 Free
38.70
5:37.98
500 Free
38.19
6:16.17
100 Free
1:16.89
550 Free
37.86
6:54.03
600 Free
37.86
7:31.89
100 Free
1:15.72
650 Free
37.95
8:09.84
700 Free
38.46
8:48.30
100 Free
1:16.41
750 Free
38.23
9:26.53
800 Free
38.27
10:04.80
100 Free
1:16.50
850 Free
38.54
10:43.34
900 Free
38.67
11:22.01
100 Free
1:17.21
950 Free
38.15
12:00.16
1000 Free
38.08
12:38.24
100 Free
1:16.23
1050 Free
39.06
13:17.30
1100 Free
38.06
13:55.36
100 Free
1:17.12
1150 Free
38.64
14:34.00
1200 Free
39.00
15:13.00
100 Free
1:17.64
1250 Free
38.20
15:51.20
1300 Free
38.89
16:30.09
100 Free
1:17.09
1350 Free
39.01
17:09.10
1400 Free
38.48
17:47.58
100 Free
1:17.49
1450 Free
38.41
18:25.99
1500 Free
38.32
19:04.31
100 Free
1:16.73
1550 Free
38.87
19:43.18
1600 Free
38.33
20:21.51
100 Free
1:17.20
1650 Free
34.11
20:55.62
Back 50 Y 32.95 15 01/27/2024 B BB: 32.69 (+0.26s | 0.8%) 28 212 1,000+ 1,000+
Back 100 Y 1:07.10 Analysis 15 02/14/2025 BB A: 1:04.09 (+3.01s | 4.5%) 21 183 954 1,000+
50 Back
33.24
33.24
100 Back
33.86
1:07.10
100 Back
1:07.10
Back 200 Y 2:28.89 Analysis 15 01/11/2025 BB A: 2:19.09 (+9.80s | 6.6%) 23 179 1,000+ 1,000+
50 Back
35.33
35.33
100 Back
38.22
1:13.55
100 Back
1:13.55
150 Back
38.46
1:52.01
200 Back
36.88
2:28.89
100 Back
1:15.34
Breast 50 Y 32.74 15 03/20/2026 AA AAA: 32.29 (+0.45s | 1.4%) 6 45 220 623
Breast 100 Y 1:10.55 Analysis 15 03/14/2025 AA AAA: 1:07.49 (+3.06s | 4.3%) 9 73 306 1,000+
50 Breast
33.39
33.39
100 Breast
37.16
1:10.55
100 Breast
1:10.55
Breast 200 Y 2:33.05 Analysis 15 11/01/2025 A AA: 2:32.79 (+0.26s | 0.2%) 7 66 284 851
Fly 50 Y 28.07 15 03/07/2026 AA AAA: 27.29 (+0.78s | 2.8%) 9 78 336 1,000+
Fly 100 Y 1:00.47 Analysis 15 02/14/2025 AA AAA: 58.39 (+2.08s | 3.4%) 8 65 274 936
50 Fly
28.16
28.16
100 Fly
32.31
1:00.47
100 Fly
1:00.47
Fly 200 Y 2:23.20 Analysis 15 12/20/2025 BB A: 2:22.09 (+1.11s | 0.8%) 7 73 332 1,000+
50 Fly
32.39
32.39
100 Fly
36.16
1:08.55
100 Fly
1:08.55
150 Fly
37.01
1:45.56
200 Fly
37.64
2:23.20
100 Fly
1:14.65
IM 200 Y 2:17.32 Analysis 15 11/01/2025 A AA: 2:16.49 (+0.83s | 0.6%) 14 98 418 1,000+
IM 400 Y 4:50.71 Analysis 15 02/14/2025 AA AAA: 4:38.99 (+11.72s | 4.0%) 6 64 291 996

Long course distance

Event Time Age Date Standard Next Standard Palo Alto Stanford Aquatics Pacific Swimming Western Zone USA
Free 50 M 29.93 15 05/24/2025 A AA: 29.59 (+0.34s | 1.1%) 22 153 736 1,000+
Free 100 M 1:05.27 Analysis 15 07/10/2026 A AA: 1:04.39 (+0.88s | 1.3%) 18 136 722 1,000+
50 Free
32.04
32.04
100 Free
33.22
1:05.27
100 Free
1:05.27
Free 200 M 2:26.18 Analysis 15 06/12/2026 BB A: 2:25.09 (+1.09s | 0.7%) 20 162 872 1,000+
Free 400 M 5:42.74 Analysis 15 05/20/2023 B BB: 5:29.89 (+12.85s | 3.7%) 24 259 1,000+ 1,000+
Back 50 M 42.90 15 06/09/2023 B: 41.19 (+1.71s | 4.0%) 36 317 1,000+ 1,000+
Back 100 M 1:22.03 Analysis 15 05/24/2025 B BB: 1:20.69 (+1.34s | 1.6%) 29 234 1,000+ 1,000+
50 Back
41.01
41.01
100 Back
41.02
1:22.03
100 Back
1:22.03
Back 200 M 3:35.69 Analysis 15 06/10/2022 B: 3:06.79 (+28.90s | 13.4%) 34 356 1,000+ 1,000+
50 Back
50.86
50.86
100 Back
55.95
1:46.81
100 Back
1:46.81
150 Back
56.08
2:42.89
200 Back
52.80
3:35.69
100 Back
1:48.88
Breast 50 M 36.19 15 07/10/2026 AAA AAAA: 34.59 (+1.60s | 4.4%) 4 26 128 341
Breast 100 M 1:20.33 Analysis 15 07/10/2026 AA AAA: 1:17.49 (+2.84s | 3.5%) 5 46 204 559
50 Breast
37.40
37.40
100 Breast
42.93
1:20.33
100 Breast
1:20.33
Breast 200 M 3:02.14 Analysis 15 06/12/2026 BB A: 3:02.09 (+0.05s | 0.0%) 9 81 367 1,000+
Fly 50 M 31.64 15 07/10/2026 AA AAA: 30.69 (+0.95s | 3.0%) 10 70 351 1,000+
Fly 100 M 1:10.33 Analysis 15 06/25/2026 A AA: 1:09.29 (+1.04s | 1.5%) 11 77 325 1,000+
IM 200 M 2:38.67 Analysis 15 07/10/2026 A AA: 2:36.99 (+1.68s | 1.1%) 10 84 402 1,000+
IM 400 M 5:44.61 Analysis 15 07/11/2025 A AA: 5:32.49 (+12.12s | 3.5%) 5 69 381 1,000+

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