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Zachary Pesin

Age: 15 years old
Age Category: 15-16
Team: Rockville Montgomery Swim Club | Potomac Valley Swimming

Personal Best

Short course distance

Event Time Age Date Standard Next Standard Rockville Montgomery Swim Club Potomac Valley Swimming Eastern Zone USA
Free 50 Y 24.74 15 11/14/2025 BB A: 24.19 (+0.55s | 2.2%) 68 339 1,000+ 1,000+
Free 100 Y 54.22 Analysis 15 11/14/2025 BB A: 53.19 (+1.03s | 1.9%) 71 333 1,000+ 1,000+
50 Free
25.88
25.88
100 Free
28.34
54.22
100 Free
54.22
Free 200 Y 1:58.42 Analysis 15 11/14/2025 BB A: 1:56.59 (+1.83s | 1.5%) 51 251 1,000+ 1,000+
50 Free
26.57
26.57
100 Free
29.36
55.93
100 Free
55.93
150 Free
31.06
1:26.99
200 Free
31.43
1:58.42
100 Free
1:02.49
Back 100 Y 59.22 Analysis 15 02/06/2026 BB A: 57.89 (+1.33s | 2.2%) 39 178 649 1,000+
50 Back
29.02
29.02
100 Back
30.20
59.22
100 Back
59.22
Back 200 Y 2:10.72 Analysis 15 03/05/2026 BB A: 2:06.59 (+4.13s | 3.2%) 31 157 585 1,000+
50 Back
30.74
30.74
100 Back
32.42
1:03.16
100 Back
1:03.16
150 Back
33.50
1:36.66
200 Back
34.06
2:10.72
100 Back
1:07.56
Breast 50 Y 30.18 15 01/16/2026 16 79 307 1,000+
Breast 100 Y 1:05.72 Analysis 15 03/20/2026 A AA: 1:03.19 (+2.53s | 3.8%) 31 136 490 1,000+
50 Breast
30.38
30.38
100 Breast
35.34
1:05.72
100 Breast
1:05.72
Breast 200 Y 2:27.16 Analysis 15 11/14/2025 BB A: 2:23.19 (+3.97s | 2.7%) 31 137 486 1,000+
50 Breast
32.79
32.79
100 Breast
37.10
1:09.89
100 Breast
1:09.89
150 Breast
38.34
1:48.23
200 Breast
38.93
2:27.16
100 Breast
1:17.27
Fly 100 Y 57.90 Analysis 15 01/16/2026 BB A: 57.59 (+0.31s | 0.5%) 45 187 706 1,000+
50 Fly
27.08
27.08
100 Fly
30.82
57.90
100 Fly
57.90
IM 200 Y 2:08.89 Analysis 15 02/06/2026 A AA: 2:03.99 (+4.90s | 3.8%) 37 184 644 1,000+
50 Fly
27.45
27.45
100 Back
32.89
1:00.34
100 IM
1:00.34
150 Breast
37.03
1:37.37
200 Free
31.52
2:08.89
100 IM
1:08.55
IM 400 Y 4:50.82 Analysis 15 03/20/2026 BB A: 4:36.19 (+14.63s | 5.0%) 28 153 634 1,000+
50 Fly
28.65
28.65
100 Fly
33.60
1:02.25
100 Fly
1:02.25
150 Back
35.48
1:37.73
200 Back
35.58
2:13.31
100 Back
1:11.06
250 Breast
41.21
2:54.52
300 Breast
43.29
3:37.81
100 Breast
1:24.50
350 Free
36.85
4:14.66
400 Free
36.16
4:50.82
100 Free
1:13.01

Long course distance

Event Time Age Date Standard Next Standard Rockville Montgomery Swim Club Potomac Valley Swimming Eastern Zone USA
Free 50 M 30.33 15 05/17/2024 BB A: 28.19 (+2.14s | 7.1%) 4 101 428 1,000+
Free 100 M 1:06.95 Analysis 15 05/17/2024 B BB: 1:06.69 (+0.26s | 0.4%) 5 100 420 1,000+
Breast 100 M 1:21.68 Analysis 15 05/17/2024 BB A: 1:16.69 (+4.99s | 6.1%) 3 43 208 1,000+
Breast 200 M 3:05.28 Analysis 15 05/17/2024 B BB: 3:00.59 (+4.69s | 2.5%) 3 41 192 1,000+
Fly 100 M 1:12.58 Analysis 15 05/17/2024 B BB: 1:11.29 (+1.29s | 1.8%) 2 76 270 1,000+
50 Fly
33.40
33.40
100 Fly
39.18
1:12.58
100 Fly
1:12.58
IM 400 M 5:45.57 Analysis 15 05/17/2024 BB A: 5:21.19 (+24.38s | 7.1%) 4 31 170 1,000+

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