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Preston Marks

Age: 16 years old
Age Category: 15-16
Team: De La Salle High School | Unattached

Personal Best

Short course distance

Event Time Age Date Standard Next Standard De La Salle High School Unattached Unattached USA
Free 50 Y 25.18 16 09/27/2025 BB A: 24.19 (+0.99s | 3.9%) 11 256 256 1,000+
Free 100 Y 53.42 Analysis 16 03/13/2026 BB A: 53.19 (+0.23s | 0.4%) 6 185 185 1,000+
50 Free
25.67
25.67
100 Free
27.75
53.42
100 Free
53.42
Free 200 Y 2:00.07 Analysis 16 11/23/2024 BB A: 1:56.59 (+3.48s | 2.9%) 7 166 166 1,000+
50 Free
26.83
26.83
100 Free
29.95
56.78
100 Free
56.78
150 Free
31.45
1:28.23
200 Free
31.84
2:00.07
100 Free
1:03.29
Free 500 Y 5:35.79 Analysis 16 11/18/2023 BB A: 5:15.79 (+20.00s | 6.0%) 5 141 141 1,000+
50 Free
29.53
29.53
100 Free
33.46
1:02.99
100 Free
1:02.99
150 Free
33.65
1:36.64
200 Free
33.94
2:10.58
100 Free
1:07.59
250 Free
34.15
2:44.73
300 Free
34.52
3:19.25
100 Free
1:08.67
350 Free
34.68
3:53.93
400 Free
34.58
4:28.51
100 Free
1:09.26
450 Free
34.30
5:02.81
500 Free
32.98
5:35.79
100 Free
1:07.28
Free 1000 Y 11:15.06 Analysis 16 03/01/2024 BB A: 11:01.59 (+13.47s | 2.0%) 2 24 24 1,000+
Free 1650 Y 20:33.74 Analysis 16 11/19/2022 B BB: 19:54.69 (+39.05s | 3.2%) 2 23 23 1,000+
Back 50 Y 27.99 16 03/13/2026 3 74 74 1,000+
Back 100 Y 1:00.40 Analysis 16 03/13/2026 BB A: 57.89 (+2.51s | 4.2%) 3 124 124 1,000+
50 Back
29.08
29.08
100 Back
31.32
1:00.40
100 Back
1:00.40
Back 200 Y 2:11.42 Analysis 16 11/23/2024 BB A: 2:06.59 (+4.83s | 3.7%) 3 44 44 1,000+
50 Back
30.77
30.77
100 Back
33.28
1:04.05
100 Back
1:04.05
150 Back
33.99
1:38.05
200 Back
33.37
2:11.42
100 Back
1:07.36
Breast 50 Y 35.75 16 03/04/2022 3 56 56 1,000+
Breast 100 Y 1:10.08 Analysis 16 11/23/2024 BB A: 1:05.89 (+4.19s | 6.0%) 7 152 152 1,000+
50 Breast
33.21
33.21
100 Breast
36.87
1:10.08
100 Breast
1:10.08
Breast 200 Y 2:45.52 Analysis 16 10/28/2023 B BB: 2:35.19 (+10.33s | 6.2%) 1 73 73 1,000+
Fly 50 Y 31.06 16 11/19/2022 5 96 96 1,000+
Fly 100 Y 1:02.82 Analysis 16 11/23/2024 B BB: 1:02.39 (+0.43s | 0.7%) 5 180 180 1,000+
50 Fly
29.37
29.37
100 Fly
33.45
1:02.82
100 Fly
1:02.82
Fly 200 Y 2:37.11 Analysis 16 03/18/2023 B: 2:30.19 (+6.92s | 4.4%) 4 54 54 1,000+
IM 200 Y 2:15.43 Analysis 16 11/23/2024 BB A: 2:09.39 (+6.04s | 4.5%) 3 138 138 1,000+
50 Fly
30.51
30.51
100 Back
33.43
1:03.94
100 IM
1:03.94
150 Breast
40.86
1:44.80
200 Free
30.63
2:15.43
100 IM
1:11.49
IM 400 Y 4:53.55 Analysis 16 11/22/2025 BB A: 4:36.19 (+17.36s | 5.9%) 2 46 46 1,000+
50 Fly
30.18
30.18
100 Fly
35.00
1:05.18
100 Fly
1:05.18
150 Back
37.38
1:42.56
200 Back
36.66
2:19.22
100 Back
1:14.04
250 Breast
43.24
3:02.46
300 Breast
42.54
3:45.00
100 Breast
1:25.78
350 Free
35.04
4:20.04
400 Free
33.51
4:53.55
100 Free
1:08.55

Long course distance

Event Time Age Date Standard Next Standard De La Salle High School Unattached Unattached USA
Free 50 M 27.67 16 04/18/2026 A AA: 26.99 (+0.68s | 2.5%) 3 46 46 1,000+
Free 100 M 1:01.43 Analysis 16 04/18/2026 A AA: 58.99 (+2.44s | 4.0%) 2 54 54 1,000+
Free 200 M 2:16.14 Analysis 16 04/18/2026 BB A: 2:14.29 (+1.85s | 1.4%) 2 39 39 1,000+
Free 400 M 4:59.20 Analysis 16 05/25/2024 BB A: 4:46.39 (+12.81s | 4.3%) 2 33 33 1,000+
Free 800 M 10:50.48 Analysis 16 04/30/2022 B BB: 10:44.39 (+6.09s | 0.9%) 2 16 16 1,000+
Free 1500 M 20:28.27 Analysis 16 05/12/2023 BB A: 18:58.49 (+89.78s | 7.3%) 2 15 15 810
Back 50 M 35.78 16 07/28/2022 2 41 41 1,000+
Back 100 M 1:11.11 Analysis 16 06/27/2025 BB A: 1:07.99 (+3.12s | 4.4%) 3 38 38 1,000+
50 Back
34.85
34.85
100 Back
36.26
1:11.11
100 Back
1:11.11
Back 200 M 2:35.00 Analysis 16 06/27/2025 BB A: 2:27.69 (+7.31s | 4.7%) 3 26 26 1,000+
50 Back
36.39
36.39
100 Back
39.81
1:16.20
100 Back
1:16.20
150 Back
39.59
1:55.79
200 Back
39.21
2:35.00
100 Back
1:18.80
Breast 50 M 36.59 16 06/27/2025 1 17 17 731
Breast 100 M 1:20.04 Analysis 16 06/27/2025 BB A: 1:16.69 (+3.35s | 4.2%) 2 29 29 1,000+
50 Breast
38.37
38.37
100 Breast
41.67
1:20.04
100 Breast
1:20.04
Breast 200 M 3:02.73 Analysis 16 06/27/2024 B BB: 3:00.59 (+2.14s | 1.2%) 1 30 30 1,000+
Fly 50 M 34.62 16 04/30/2022 2 52 52 1,000+
Fly 100 M 1:16.86 Analysis 16 07/27/2024 B: 1:16.79 (+0.07s | 0.1%) 2 58 58 1,000+
IM 200 M 2:36.38 Analysis 16 06/27/2025 BB A: 2:30.99 (+5.39s | 3.4%) 2 38 38 1,000+
50 Fly
35.15
35.15
100 Back
39.96
1:15.11
100 IM
1:15.11
150 Breast
46.32
2:01.43
200 Free
34.95
2:36.38
100 IM
1:21.27
IM 400 M 5:34.42 Analysis 16 06/27/2025 BB A: 5:21.19 (+13.23s | 4.0%) 2 22 22 1,000+
50 Fly
36.61
36.61
100 Fly
41.02
1:17.63
100 Fly
1:17.63
150 Back
41.84
1:59.47
200 Back
42.09
2:41.56
100 Back
1:23.93
250 Breast
49.20
3:30.76
300 Breast
48.83
4:19.59
100 Breast
1:38.03
350 Free
37.45
4:57.04
400 Free
37.38
5:34.42
100 Free
1:14.83

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