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Kaylee Mathiesen

Age: 18 years old
Age Category: 17-18
Team: Sierra Marlins Swim Team | Sierra Nevada Swimming

Personal Best

Short course distance

Event Time Age Date Standard Next Standard Sierra Marlins Swim Team Sierra Nevada Swimming Western Zone USA
Free 50 Y 24.73 17 02/26/2026 AA AAA: 24.69 (+0.04s | 0.2%) 5 21 304 951
Free 100 Y 52.58 Analysis 17 02/26/2026 AAA AAAA: 51.09 (+1.49s | 2.8%) 2 8 164 512
50 Free
25.29
25.29
100 Free
27.29
52.58
100 Free
52.58
Free 200 Y 1:54.82 Analysis 17 02/26/2026 AAA AAAA: 1:50.39 (+4.43s | 3.9%) 4 11 202 634
Back 50 Y 34.22 17 04/04/2019 B BB: 32.19 (+2.03s | 5.9%) 4 40 1,000+ 1,000+
Breast 50 Y 29.95 17 02/26/2026 AAAA 2 3 30 73
Breast 100 Y 1:04.61 Analysis 17 11/08/2025 AAA AAAA: 1:03.59 (+1.02s | 1.6%) 2 7 72 195
50 Breast
30.52
30.52
100 Breast
34.09
1:04.61
100 Breast
1:04.61
Breast 200 Y 2:20.13 Analysis 17 02/26/2026 AAA AAAA: 2:18.49 (+1.64s | 1.2%) 1 4 65 172
50 Breast
31.30
31.30
100 Breast
34.99
1:06.29
100 Breast
1:06.29
150 Breast
35.87
1:42.16
200 Breast
37.97
2:20.13
100 Breast
1:13.84
Fly 100 Y 56.94 Analysis 17 11/08/2025 AAA AAAA: 55.19 (+1.75s | 3.1%) 2 11 111 370
50 Fly
26.63
26.63
100 Fly
30.31
56.94
100 Fly
56.94
IM 200 Y 2:06.42 Analysis 17 11/08/2025 AAA AAAA: 2:02.69 (+3.73s | 3.0%) 1 4 102 260
50 Fly
27.21
27.21
100 Back
32.61
59.82
100 IM
59.82
150 Breast
36.50
1:36.32
200 Free
30.10
2:06.42
100 IM
1:06.60
IM 400 Y 4:49.13 Analysis 17 11/03/2023 A AA: 4:47.99 (+1.14s | 0.4%) 3 17 340 1,000+
50 Fly
29.35
29.35
100 Fly
35.22
1:04.57
100 Fly
1:04.57
150 Back
38.02
1:42.59
200 Back
37.50
2:20.09
100 Back
1:15.52
250 Breast
41.22
3:01.31
300 Breast
42.00
3:43.31
100 Breast
1:23.22
350 Free
33.39
4:16.70
400 Free
32.43
4:49.13
100 Free
1:05.82

Long course distance

Event Time Age Date Standard Next Standard Sierra Marlins Swim Team Sierra Nevada Swimming Western Zone USA
Free 50 M 28.64 17 07/10/2026 AA AAA: 28.19 (+0.45s | 1.6%) 5 17 358 950
Free 100 M 1:01.35 Analysis 17 06/27/2024 AA AAA: 1:01.09 (+0.26s | 0.4%) 4 15 279 735
Free 200 M 2:20.72 Analysis 17 07/28/2021 A AA: 2:17.69 (+3.03s | 2.2%) 8 26 591 1,000+
Back 50 M 35.24 17 07/28/2021 BB A: 35.09 (+0.15s | 0.4%) 5 19 476 1,000+
Back 100 M 1:18.57 Analysis 17 07/28/2021 BB A: 1:13.69 (+4.88s | 6.2%) 7 40 860 1,000+
Back 200 M 2:45.69 Analysis 17 07/28/2021 BB A: 2:39.19 (+6.50s | 3.9%) 7 33 589 1,000+
Breast 50 M 35.08 17 07/10/2026 AAA AAAA: 34.19 (+0.89s | 2.5%) 2 3 65 162
Breast 100 M 1:16.12 Analysis 17 07/10/2026 AAA AAAA: 1:13.09 (+3.03s | 4.0%) 1 3 78 214
50 Breast
33.79
33.79
100 Breast
42.33
1:16.12
100 Breast
1:16.12
Breast 200 M 2:46.41 Analysis 17 07/10/2026 AA AAA: 2:44.99 (+1.42s | 0.9%) 1 5 98 235
50 Breast
38.66
38.66
100 Breast
42.90
1:21.56
100 Breast
1:21.56
150 Breast
43.48
2:05.04
200 Breast
41.37
2:46.41
100 Breast
1:24.85
Fly 50 M 29.93 17 07/10/2026 AAA AAAA: 28.79 (+1.14s | 3.8%) 3 6 127 378
Fly 100 M 1:07.11 Analysis 17 06/27/2024 AA AAA: 1:05.69 (+1.42s | 2.1%) 3 8 197 555
IM 200 M 2:33.57 Analysis 17 07/13/2023 AA AAA: 2:28.79 (+4.78s | 3.1%) 2 12 296 790
50 Fly
31.93
31.93
100 Back
41.43
1:13.36
100 IM
1:13.36
150 Breast
45.45
1:58.81
200 Free
34.76
2:33.57
100 IM
1:20.21
IM 400 M 5:44.19 Analysis 17 08/03/2022 BB A: 5:43.09 (+1.10s | 0.3%) 3 15 373 971

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