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Markos Mastronikolas

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 22.45 15 12/11/2025 AA AAA: 22.19 (+0.26s | 1.2%) 8 49 186 722
Free 100 Y 48.32 Analysis 15 03/05/2026 AAA AAAA: 46.49 (+1.83s | 3.8%) 6 28 110 462
50 Free
23.21
23.21
100 Free
25.11
48.32
100 Free
48.32
Free 200 Y 1:46.11 Analysis 15 02/06/2026 AAA AAAA: 1:41.99 (+4.12s | 3.9%) 6 37 146 566
50 Free
23.95
23.95
100 Free
26.61
50.56
100 Free
50.56
150 Free
27.54
1:18.10
200 Free
28.01
1:46.11
100 Free
55.55
Free 500 Y 4:46.91 Analysis 15 02/21/2026 AAA AAAA: 4:36.29 (+10.62s | 3.7%) 2 19 113 393
50 Free
26.14
26.14
100 Free
28.60
54.74
100 Free
54.74
150 Free
29.38
1:24.12
200 Free
29.50
1:53.62
100 Free
58.88
250 Free
29.62
2:23.24
300 Free
29.39
2:52.63
100 Free
59.01
350 Free
29.00
3:21.63
400 Free
29.06
3:50.69
100 Free
58.06
450 Free
28.53
4:19.22
500 Free
27.69
4:46.91
100 Free
56.22
Free 1000 Y 10:11.24 Analysis 15 02/08/2026 AA AAA: 10:06.39 (+4.85s | 0.8%) 8 36 157 487
50 Free
27.33
27.33
100 Free
30.50
57.83
100 Free
57.83
150 Free
30.89
1:28.72
200 Free
31.34
2:00.06
100 Free
1:02.23
250 Free
31.46
2:31.52
300 Free
31.19
3:02.71
100 Free
1:02.65
350 Free
31.32
3:34.03
400 Free
31.38
4:05.41
100 Free
1:02.70
450 Free
31.64
4:37.05
500 Free
31.11
5:08.16
100 Free
1:02.75
550 Free
30.93
5:39.09
600 Free
31.05
6:10.14
100 Free
1:01.98
650 Free
31.03
6:41.17
700 Free
31.20
7:12.37
100 Free
1:02.23
750 Free
30.75
7:43.12
800 Free
30.39
8:13.51
100 Free
1:01.14
850 Free
30.39
8:43.90
900 Free
30.68
9:14.58
100 Free
1:01.07
950 Free
29.83
9:44.41
1000 Free
26.83
10:11.24
100 Free
56.66
Back 50 Y 30.39 15 01/20/2024 45 232 885 1,000+
Back 100 Y 59.07 Analysis 15 10/10/2025 BB A: 57.89 (+1.18s | 2.0%) 32 158 600 1,000+
50 Back
28.44
28.44
100 Back
30.63
59.07
100 Back
59.07
Fly 50 Y 24.13 15 03/05/2026 6 28 75 251
Fly 100 Y 54.45 Analysis 15 03/05/2026 AA AAA: 52.79 (+1.66s | 3.0%) 9 60 238 913
50 Fly
25.43
25.43
100 Fly
29.02
54.45
100 Fly
54.45
Fly 200 Y 2:05.48 Analysis 15 01/16/2026 A AA: 2:03.39 (+2.09s | 1.7%) 10 70 267 954
50 Fly
27.85
27.85
100 Fly
31.21
59.06
100 Fly
59.06
150 Fly
33.29
1:32.35
200 Fly
33.13
2:05.48
100 Fly
1:06.42
IM 200 Y 2:00.87 Analysis 15 03/05/2026 AA AAA: 1:58.59 (+2.28s | 1.9%) 8 53 194 757
50 Fly
26.05
26.05
100 Back
31.20
57.25
100 IM
57.25
150 Breast
36.46
1:33.71
200 Free
27.16
2:00.87
100 IM
1:03.62

Long course distance

Event Time Age Date Standard Next Standard Rockville Montgomery Swim Club Potomac Valley Swimming Eastern Zone USA
Free 50 M 25.61 15 05/14/2026 AAA AAAA: 24.69 (+0.92s | 3.6%) 4 14 56 338
Free 200 M 2:02.45 Analysis 15 05/14/2026 AAA AAAA: 1:57.49 (+4.96s | 4.1%) 1 13 56 304
100 Free
59.43
59.43
100 Free
59.43
200 Free
1:03.02
2:02.45
100 Free
1:03.02
Free 400 M 4:20.11 Analysis 15 05/14/2026 AAA AAAA: 4:10.59 (+9.52s | 3.7%) 1 9 42 238
100 Free
1:01.53
1:01.53
100 Free
1:01.53
200 Free
1:06.63
2:08.16
100 Free
1:06.63
300 Free
1:07.22
3:15.38
100 Free
1:07.22
400 Free
1:04.73
4:20.11
100 Free
1:04.73
Back 200 M 2:28.48 Analysis 15 05/14/2026 BB A: 2:27.69 (+0.79s | 0.5%) 2 44 179 878
100 Back
1:11.70
1:11.70
100 Back
1:11.70
200 Back
1:16.78
2:28.48
100 Back
1:16.78
Fly 50 M 27.56 15 05/14/2026 2 12 51 210
Fly 100 M 1:03.15 Analysis 15 05/14/2026 A AA: 1:03.09 (+0.06s | 0.1%) 3 33 126 667

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