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Seren Jeffreys

Age: 14 years old
Age Category: 13-14
Team: Kingfish Swimming Medfield | New England Swimming

Personal Best

Short course distance

Event Time Age Date Standard Next Standard Kingfish Swimming Medfield New England Swimming Eastern Zone USA
Free 50 Y 30.61 14 05/15/2026 B BB: 30.19 (+0.42s | 1.4%) 17 484 1,000+ 1,000+
Free 100 Y 1:10.26 Analysis 14 05/15/2026 B BB: 1:05.89 (+4.37s | 6.2%) 23 568 1,000+ 1,000+
50 Free
33.96
33.96
100 Free
36.30
1:10.26
100 Free
1:10.26
Back 50 Y 42.56 14 10/25/2025 26 675 1,000+ 1,000+
Back 100 Y 1:21.63 Analysis 14 05/15/2026 B: 1:16.89 (+4.74s | 5.8%) 23 523 1,000+ 1,000+
50 Back
40.53
40.53
100 Back
41.10
1:21.63
100 Back
1:21.63
Back 200 Y 2:52.42 Analysis 14 05/15/2026 B: 2:46.39 (+6.03s | 3.5%) 15 310 1,000+ 1,000+
50 Back
42.18
42.18
100 Back
44.55
1:26.73
100 Back
1:26.73
150 Back
43.61
2:10.34
200 Back
42.08
2:52.42
100 Back
1:25.69
Breast 50 Y 44.19 14 10/25/2025 29 463 1,000+ 1,000+
Breast 100 Y 1:39.80 Analysis 14 01/10/2026 B: 1:28.69 (+11.11s | 11.1%) 26 603 1,000+ 1,000+
50 Breast
47.37
47.37
100 Breast
52.43
1:39.80
100 Breast
1:39.80
IM 200 Y 3:01.49 Analysis 14 05/15/2026 B: 2:51.79 (+9.70s | 5.3%) 27 499 1,000+ 1,000+
50 Fly
42.86
42.86
100 Back
44.72
1:27.58
100 IM
1:27.58
150 Breast
55.69
2:23.27
200 Free
38.22
3:01.49
100 IM
1:33.91

Long course distance

Event Time Age Date Standard Next Standard Kingfish Swimming Medfield New England Swimming Eastern Zone USA
Free 50 M 36.17 14 06/06/2026 B BB: 34.59 (+1.58s | 4.4%) 12 353 1,000+ 1,000+
Free 100 M 1:20.63 Analysis 14 06/06/2026 B BB: 1:15.39 (+5.24s | 6.5%) 14 333 984 1,000+
Back 50 M 45.12 14 06/06/2026 6 314 889 1,000+
Back 100 M 1:33.47 Analysis 14 06/06/2026 B: 1:29.69 (+3.78s | 4.0%) 10 279 825 1,000+
Breast 50 M 57.30 14 06/06/2026 16 337 1,000+ 1,000+
Breast 100 M 2:02.13 Analysis 14 06/06/2026 B: 1:42.39 (+19.74s | 16.2%) 19 333 963 1,000+

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