Kostas Mastronikolas

Age: 13 years old
Age Category: 13-14
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

26.94

12/04/2025

A: 25.59 (+1.35s | 5.0%)

373

1,000+

Free 100 Y

59.05

11/14/2025

A: 55.69 (+3.36s | 5.7%)

307

1,000+

50 Free

28.47

100 Free

30.58

59.05

100 Free

59.05

Free 200 Y

2:11.17

10/17/2025

A: 2:02.19 (+8.98s | 6.8%)

267

1,000+

50 Free

29.36

100 Free

33.57

1:02.93

100 Free

1:02.93

150 Free

34.65

1:37.58

200 Free

33.59

2:11.17

100 Free

1:08.24

Free 500 Y

5:50.22

01/23/2026

A: 5:30.59 (+19.63s | 5.6%)

211

816

1,000+

50 Free

30.15

100 Free

34.13

1:04.28

100 Free

1:04.28

150 Free

35.93

1:40.21

200 Free

35.98

2:16.19

100 Free

1:11.91

250 Free

36.16

2:52.35

300 Free

36.64

3:28.99

100 Free

1:12.80

350 Free

36.36

4:05.35

400 Free

36.47

4:41.82

100 Free

1:12.83

450 Free

35.25

5:17.07

500 Free

33.15

5:50.22

100 Free

1:08.40

Back 50 Y

34.26

11/01/2025

335

1,000+

Back 100 Y

1:09.53

12/04/2025

BB: 1:06.19 (+3.34s | 4.8%)

302

1,000+

50 Back

33.42

100 Back

36.11

1:09.53

100 Back

1:09.53

Back 200 Y

2:30.00

01/23/2026

BB: 2:23.69 (+6.31s | 4.2%)

243

935

1,000+

50 Back

35.53

100 Back

38.54

1:14.07

100 Back

1:14.07

200 Back

1:15.93

2:30.00

100 Back

1:15.93

Breast 100 Y

1:14.82

12/04/2025

BB: 1:14.79 (+0.03s | 0.0%)

204

739

1,000+

50 Breast

35.07

100 Breast

39.75

1:14.82

100 Breast

1:14.82

Breast 200 Y

2:41.66

01/16/2026

A: 2:29.89 (+11.77s | 7.3%)

171

608

1,000+

50 Breast

36.74

100 Breast

41.22

1:17.96

100 Breast

1:17.96

150 Breast

42.15

2:00.11

200 Breast

41.55

2:41.66

100 Breast

1:23.70

Fly 50 Y

29.46

11/14/2025

188

639

1,000+

Fly 100 Y

1:05.61

10/17/2025

BB: 1:05.49 (+0.12s | 0.2%)

196

764

1,000+

50 Fly

30.86

100 Fly

34.75

1:05.61

100 Fly

1:05.61

Fly 200 Y

2:28.98

01/23/2026

BB: 2:25.59 (+3.39s | 2.3%)

138

489

1,000+

50 Fly

33.45

100 Fly

37.94

1:11.39

100 Fly

1:11.39

150 Fly

38.71

1:50.10

200 Fly

38.88

2:28.98

100 Fly

1:17.59

IM 200 Y

2:23.87

01/23/2026

A: 2:15.39 (+8.48s | 5.9%)

219

823

1,000+

50 Fly

31.37

100 Back

37.17

1:08.54

100 IM

1:08.54

150 Breast

43.01

1:51.55

200 Free

32.32

2:23.87

100 IM

1:15.33

IM 400 Y

5:05.07

11/14/2025

A: 4:49.49 (+15.58s | 5.1%)

146

567

1,000+

50 Fly

31.22

100 Fly

38.60

1:09.82

100 Fly

1:09.82

150 Back

39.97

1:49.79

200 Back

40.15

2:29.94

100 Back

1:20.12

250 Breast

43.82

3:13.76

300 Breast

43.84

3:57.60

100 Breast

1:27.66

350 Free

34.28

4:31.88

400 Free

33.19

5:05.07

100 Free

1:07.47

Long course distance

Event	Time		Age	Date	Standard	Next Standard	Rockville Montgomery Swim Club	Potomac Valley Swimming	Eastern Zone	USA

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

Time Standards

Got the currrent age group time standard
Time standard for the next age group and the gap to reach it
Got the next age group’s time standard.

Short Course Distance

Event	Best Time	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ	SouthWestern Age Group Regional
Free 50 Y	26.94	22.19 (+4.75s \| 17.6%)	21.29 (+5.65s \| 21.0%)	21.29 (+5.65s \| 21.0%)	20.59 (+6.35s \| 23.6%)	20.09 (+6.85s \| 25.4%)	20.39 (+6.55s \| 24.3%)	26.29 (+0.65s \| 2.4%)
Free 100 Y	59.05	48.19 (+10.86s \| 18.4%)	46.39 (+12.66s \| 21.4%)	46.39 (+12.66s \| 21.4%)	45.09 (+13.96s \| 23.6%)	43.49 (+15.56s \| 26.4%)	44.39 (+14.66s \| 24.8%)	56.69 (+2.36s \| 4.0%)
Free 200 Y	2:11.17	1:45.79 (+25.38s \| 19.3%)	1:41.59 (+29.58s \| 22.6%)	1:41.59 (+29.58s \| 22.6%)	1:38.79 (+32.38s \| 24.7%)	1:36.49 (+34.68s \| 26.4%)	1:38.09 (+33.08s \| 25.2%)	2:03.89 (+7.28s \| 5.6%)
Free 500 Y	5:50.22	4:47.79 (+62.43s \| 17.8%)	4:37.09 (+73.13s \| 20.9%)	4:37.09 (+73.13s \| 20.9%)	4:29.49 (+80.73s \| 23.1%)	4:22.09 (+88.13s \| 25.2%)	4:27.69 (+82.53s \| 23.6%)	5:31.59 (+18.63s \| 5.3%)
Back 50 Y	34.26	N/A	N/A	N/A	N/A	N/A	N/A	1:02.89
Back 100 Y	1:09.53	53.89 (+15.64s \| 22.5%)	51.49 (+18.04s \| 25.9%)	51.49 (+18.04s \| 25.9%)	49.39 (+20.14s \| 29.0%)	47.59 (+21.94s \| 31.6%)	48.89 (+20.64s \| 29.7%)	2:16.09 1:00.49 (+9.04s \| 13.0%)
Back 200 Y	2:30.00	1:57.29 (+32.71s \| 21.8%)	1:52.79 (+37.21s \| 24.8%)	1:52.79 (+37.21s \| 24.8%)	1:48.29 (+41.71s \| 27.8%)	1:45.49 (+44.51s \| 29.7%)	1:47.09 (+42.91s \| 28.6%)	1:11.49 (+78.51s \| 52.3%)
Breast 100 Y	1:14.82	1:00.89 (+13.93s \| 18.6%)	57.99 (+16.83s \| 22.5%)	57.99 (+16.83s \| 22.5%)	55.89 (+18.93s \| 25.3%)	54.19 (+20.63s \| 27.6%)	55.29 (+19.53s \| 26.1%)	1:01.79 (+13.03s \| 17.4%)
Breast 200 Y	2:41.66	2:13.29 (+28.37s \| 17.5%)	2:07.99 (+33.67s \| 20.8%)	2:07.99 (+33.67s \| 20.8%)	2:02.29 (+39.37s \| 24.4%)	1:58.79 (+42.87s \| 26.5%)	2:00.99 (+40.67s \| 25.2%)	2:17.39 (+24.27s \| 15.0%)
Fly 50 Y	29.46	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Fly 100 Y	1:05.61	52.89 (+12.72s \| 19.4%)	50.59 (+15.02s \| 22.9%)	50.59 (+15.02s \| 22.9%)	48.99 (+16.62s \| 25.3%)	47.79 (+17.82s \| 27.2%)	48.39 (+17.22s \| 26.2%)	N/A
Fly 200 Y	2:28.98	1:58.89 (+30.09s \| 20.2%)	1:53.69 (+35.29s \| 23.7%)	1:53.69 (+35.29s \| 23.7%)	1:49.59 (+39.39s \| 26.4%)	1:45.99 (+42.99s \| 28.9%)	1:47.89 (+41.09s \| 27.6%)	N/A
IM 200 Y	2:23.87	1:58.19 (+25.68s \| 17.8%)	1:53.89 (+29.98s \| 20.8%)	1:53.89 (+29.98s \| 20.8%)	1:50.09 (+33.78s \| 23.5%)	1:46.39 (+37.48s \| 26.1%)	1:48.89 (+34.98s \| 24.3%)	2:18.59 (+5.28s \| 3.7%)
IM 400 Y	5:05.07	4:14.69 (+50.38s \| 16.5%)	4:06.99 (+58.08s \| 19.0%)	4:06.99 (+58.08s \| 19.0%)	3:57.59 (+67.48s \| 22.1%)	3:48.79 (+76.28s \| 25.0%)	3:52.69 (+72.38s \| 23.7%)	4:55.29 (+9.78s \| 3.2%)

Long Course Distance

Event	Best Time	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ	SouthWestern Age Group Regional

Progression

See how Kostas Mastronikolas is improving gradually by choosing the distance and the stroke you are interested in. You can also compare the Kostas's time to another swimmer's and even view their profile for more information about them.

Select the distance and stroke

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Meets

See all the meets Kostas Mastronikolas has participated in and his achievement. The last event displayed is the most recent. For each event, you can find the Kostas's time, the progress against Kostas's best time, the corresponding time standard, as well as how much faster Kostas needs to be to reach the next level.

Event

Time

Progress

Standard

Next Standard

Age

Heat

Lane

Ranking

2026 USAS IMX Games

01/23/2026

College Park

200 Y Fly

2:28.98

-0.70s (New PB)

BB: 2:25.59 (+3.39s | 2.3%)

50 Fly

33.45

100 Fly

37.94

1:11.39

100 Fly

1:11.39

150 Fly

38.71

1:50.10

200 Fly

38.88

2:28.98

100 Fly

1:17.59

200 Y Back

2:30.00

-5.34s (New PB)

BB: 2:23.69 (+6.31s | 4.2%)

50 Back

35.53

100 Back

38.54

1:14.07

100 Back

1:14.07

200 Back

1:15.93

2:30.00

100 Back

1:15.93

500 Y Free

5:50.22

-1.86s (New PB)

A: 5:30.59 (+19.63s | 5.6%)

50 Free

30.15

100 Free

34.13

1:04.28

100 Free

1:04.28

150 Free

35.93

1:40.21

200 Free

35.98

2:16.19

100 Free

1:11.91

250 Free

36.16

2:52.35

300 Free

36.64

3:28.99

100 Free

1:12.80

350 Free

36.36

4:05.35

400 Free

36.47

4:41.82

100 Free

1:12.83

450 Free

35.25

5:17.07

500 Free

33.15

5:50.22

100 Free

1:08.40

400 Y IM

5:06.69

+1.62s

A: 4:49.49 (+17.20s | 5.6%)

50 Fly

32.25

100 Fly

37.86

1:10.12

100 Fly

1:10.12

150 Back

39.39

1:49.51

200 Back

38.83

2:28.34

100 Back

1:18.22

250 Breast

44.92

3:13.26

300 Breast

42.91

3:56.17

100 Breast

1:27.83

400 Free

1:10.52

5:06.69

100 Free

1:10.52

200 Y IM

2:23.87

-1.42s (New PB)

A: 2:15.39 (+8.48s | 5.9%)

50 Fly

31.37

100 Back

37.17

1:08.54

100 IM

1:08.54

150 Breast

43.01

1:51.55

200 Free

32.32

2:23.87

100 IM

1:15.33

200 Y Breast

2:42.63

+0.97s

BB: 2:42.39 (+0.24s | 0.1%)

50 Breast

37.71

100 Breast

40.59

1:18.30

100 Breast

1:18.30

150 Breast

42.04

2:00.34

200 Breast

42.29

2:42.63

100 Breast

1:24.33

2026 RMSC January Intrasquad Meet

01/16/2026

Boyds

200 Y IM

2:25.56

+0.27s

A: 2:15.39 (+10.17s | 7.0%)

50 Fly

31.64

100 Back

37.91

1:09.55

100 IM

1:09.55

150 Breast

42.80

1:52.35

200 Free

33.21

2:25.56

100 IM

1:16.01

200 Y Free

2:12.68

+1.51s

BB: 2:12.29 (+0.39s | 0.3%)

50 Free

29.38

100 Free

33.47

1:02.85

100 Free

1:02.85

150 Free

34.98

1:37.83

200 Free

34.85

2:12.68

100 Free

1:09.83

200 Y Back

2:35.34

B: 2:34.69 (+0.65s | 0.4%)

50 Back

35.78

100 Back

39.46

1:15.24

100 Back

1:15.24

150 Back

40.53

1:55.77

200 Back

39.57

2:35.34

100 Back

1:20.10

100 Y Free

1:00.57

+1.52s

BB: 1:00.29 (+0.28s | 0.5%)

50 Free

28.77

100 Free

31.80

1:00.57

100 Free

1:00.57

200 Y Breast

2:41.66

A: 2:29.89 (+11.77s | 7.3%)

50 Breast

36.74

100 Breast

41.22

1:17.96

100 Breast

1:17.96

150 Breast

42.15

2:00.11

200 Breast

41.55

2:41.66

100 Breast

1:23.70

100 Y Fly

1:07.44

+1.83s

BB: 1:05.49 (+1.95s | 2.9%)

50 Fly

32.40

100 Fly

35.04

1:07.44

100 Fly

1:07.44

2025 PV Turkey Claus Showdown

12/04/2025

College Park

100 Y Breast

1:14.82

-1.63s (New PB)

BB: 1:14.79 (+0.03s | 0.0%)

50 Breast

35.07

100 Breast

39.75

1:14.82

100 Breast

1:14.82

200 Y Free

2:12.45

+1.28s

BB: 2:12.29 (+0.16s | 0.1%)

50 Free

29.50

100 Free

33.14

1:02.64

100 Free

1:02.64

150 Free

35.08

1:37.72

200 Free

34.73

2:12.45

100 Free

1:09.81

200 Y IM

2:26.51

+1.22s

A: 2:15.39 (+11.12s | 7.6%)

50 Fly

30.71

100 Back

38.15

1:08.86

100 IM

1:08.86

150 Breast

43.20

1:52.06

200 Free

34.45

2:26.51

100 IM

1:17.65

100 Y Fly

1:08.30

+2.69s

BB: 1:05.49 (+2.81s | 4.1%)

50 Fly

31.95

100 Fly

36.35

1:08.30

100 Fly

1:08.30

100 Y Back

1:09.53

-0.83s (New PB)

BB: 1:06.19 (+3.34s | 4.8%)

50 Back

33.42

100 Back

36.11

1:09.53

100 Back

1:09.53

100 Y Free

59.38

+0.33s

A: 55.69 (+3.69s | 6.2%)

50 Free

28.37

100 Free

31.01

59.38

100 Free

59.38

50 Y Free

26.94

-0.20s (New PB)

A: 25.59 (+1.35s | 5.0%)

2025 RMSC November Dual Meet

11/14/2025

Boyds

400 Y IM

5:05.07

A: 4:49.49 (+15.58s | 5.1%)

50 Fly

31.22

100 Fly

38.60

1:09.82

100 Fly

1:09.82

150 Back

39.97

1:49.79

200 Back

40.15

2:29.94

100 Back

1:20.12

250 Breast

43.82

3:13.76

300 Breast

43.84

3:57.60

100 Breast

1:27.66

350 Free

34.28

4:31.88

400 Free

33.19

5:05.07

100 Free

1:07.47

200 Y Fly

2:29.68

-0.95s (New PB)

BB: 2:25.59 (+4.09s | 2.7%)

50 Fly

32.36

100 Fly

39.65

1:12.01

100 Fly

1:12.01

150 Fly

39.44

1:51.45

200 Fly

38.23

2:29.68

100 Fly

1:17.67

100 Y Breast

1:16.98

+0.53s

BB: 1:14.79 (+2.19s | 2.8%)

50 Breast

36.15

100 Breast

40.83

1:16.98

100 Breast

1:16.98

50 Y Fly

29.46

100 Y Free

59.05

-0.60s (New PB)

A: 55.69 (+3.36s | 5.7%)

50 Free

28.47

100 Free

30.58

59.05

100 Free

59.05

100 Y Back

1:10.36

BB: 1:06.19 (+4.17s | 5.9%)

50 Back

33.88

100 Back

36.48

1:10.36

100 Back

1:10.36

2025 RMSC Autumn 350 Challenge Meet

11/01/2025

Colesville

100 Y Breast

1:16.45

BB: 1:14.79 (+1.66s | 2.2%)

50 Breast

36.62

100 Breast

39.83

1:16.45

100 Breast

1:16.45

200 Y Fly

2:30.63

BB: 2:25.59 (+5.04s | 3.3%)

50 Fly

33.11

100 Fly

38.03

1:11.14

100 Fly

1:11.14

150 Fly

40.44

1:51.58

200 Fly

39.05

2:30.63

100 Fly

1:19.49

50 Y Back

34.26

2025 RMSC October Kick Off Classic

10/17/2025

Boyds

500 Y Free

5:52.08

A: 5:30.59 (+21.49s | 6.1%)

50 Free

30.18

100 Free

34.02

1:04.20

100 Free

1:04.20

150 Free

35.93

1:40.13

200 Free

36.41

2:16.54

100 Free

1:12.34

250 Free

35.89

2:52.43

300 Free

36.55

3:28.98

100 Free

1:12.44

350 Free

36.82

4:05.80

400 Free

36.74

4:42.54

100 Free

1:13.56

450 Free

36.26

5:18.80

500 Free

33.28

5:52.08

100 Free

1:09.54

100 Y Free

59.65

A: 55.69 (+3.96s | 6.6%)

50 Free

29.08

100 Free

30.57

59.65

100 Free

59.65

100 Y Fly

1:05.61

BB: 1:05.49 (+0.12s | 0.2%)

50 Fly

30.86

100 Fly

34.75

1:05.61

100 Fly

1:05.61

200 Y IM

2:25.29

A: 2:15.39 (+9.90s | 6.8%)

50 Fly

31.65

100 Back

38.18

1:09.83

100 IM

1:09.83

150 Breast

42.04

1:51.87

200 Free

33.42

2:25.29

100 IM

1:15.46

200 Y Free

2:11.17

A: 2:02.19 (+8.98s | 6.8%)

50 Free

29.36

100 Free

33.57

1:02.93

100 Free

1:02.93

150 Free

34.65

1:37.58

200 Free

33.59

2:11.17

100 Free

1:08.24

50 Y Free

27.14

A: 25.59 (+1.55s | 5.7%)

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.

Event	Best Time	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ	SouthWestern Age Group Regional
Free 50 Y	26.94	22.19 (+4.75s \| 17.6%)	21.29 (+5.65s \| 21.0%)	21.29 (+5.65s \| 21.0%)	20.59 (+6.35s \| 23.6%)	20.09 (+6.85s \| 25.4%)	20.39 (+6.55s \| 24.3%)	26.29 (+0.65s \| 2.4%)
Free 100 Y	59.05	48.19 (+10.86s \| 18.4%)	46.39 (+12.66s \| 21.4%)	46.39 (+12.66s \| 21.4%)	45.09 (+13.96s \| 23.6%)	43.49 (+15.56s \| 26.4%)	44.39 (+14.66s \| 24.8%)	56.69 (+2.36s \| 4.0%)
Free 200 Y	2:11.17	1:45.79 (+25.38s \| 19.3%)	1:41.59 (+29.58s \| 22.6%)	1:41.59 (+29.58s \| 22.6%)	1:38.79 (+32.38s \| 24.7%)	1:36.49 (+34.68s \| 26.4%)	1:38.09 (+33.08s \| 25.2%)	2:03.89 (+7.28s \| 5.6%)
Free 500 Y	5:50.22	4:47.79 (+62.43s \| 17.8%)	4:37.09 (+73.13s \| 20.9%)	4:37.09 (+73.13s \| 20.9%)	4:29.49 (+80.73s \| 23.1%)	4:22.09 (+88.13s \| 25.2%)	4:27.69 (+82.53s \| 23.6%)	5:31.59 (+18.63s \| 5.3%)
Back 50 Y	34.26	N/A	N/A	N/A	N/A	N/A	N/A	1:02.89
Back 100 Y	1:09.53	53.89 (+15.64s \| 22.5%)	51.49 (+18.04s \| 25.9%)	51.49 (+18.04s \| 25.9%)	49.39 (+20.14s \| 29.0%)	47.59 (+21.94s \| 31.6%)	48.89 (+20.64s \| 29.7%)	2:16.09 1:00.49 (+9.04s \| 13.0%)
Back 200 Y	2:30.00	1:57.29 (+32.71s \| 21.8%)	1:52.79 (+37.21s \| 24.8%)	1:52.79 (+37.21s \| 24.8%)	1:48.29 (+41.71s \| 27.8%)	1:45.49 (+44.51s \| 29.7%)	1:47.09 (+42.91s \| 28.6%)	1:11.49 (+78.51s \| 52.3%)
Breast 100 Y	1:14.82	1:00.89 (+13.93s \| 18.6%)	57.99 (+16.83s \| 22.5%)	57.99 (+16.83s \| 22.5%)	55.89 (+18.93s \| 25.3%)	54.19 (+20.63s \| 27.6%)	55.29 (+19.53s \| 26.1%)	1:01.79 (+13.03s \| 17.4%)
Breast 200 Y	2:41.66	2:13.29 (+28.37s \| 17.5%)	2:07.99 (+33.67s \| 20.8%)	2:07.99 (+33.67s \| 20.8%)	2:02.29 (+39.37s \| 24.4%)	1:58.79 (+42.87s \| 26.5%)	2:00.99 (+40.67s \| 25.2%)	2:17.39 (+24.27s \| 15.0%)
Fly 50 Y	29.46	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Fly 100 Y	1:05.61	52.89 (+12.72s \| 19.4%)	50.59 (+15.02s \| 22.9%)	50.59 (+15.02s \| 22.9%)	48.99 (+16.62s \| 25.3%)	47.79 (+17.82s \| 27.2%)	48.39 (+17.22s \| 26.2%)	N/A
Fly 200 Y	2:28.98	1:58.89 (+30.09s \| 20.2%)	1:53.69 (+35.29s \| 23.7%)	1:53.69 (+35.29s \| 23.7%)	1:49.59 (+39.39s \| 26.4%)	1:45.99 (+42.99s \| 28.9%)	1:47.89 (+41.09s \| 27.6%)	N/A
IM 200 Y	2:23.87	1:58.19 (+25.68s \| 17.8%)	1:53.89 (+29.98s \| 20.8%)	1:53.89 (+29.98s \| 20.8%)	1:50.09 (+33.78s \| 23.5%)	1:46.39 (+37.48s \| 26.1%)	1:48.89 (+34.98s \| 24.3%)	2:18.59 (+5.28s \| 3.7%)
IM 400 Y	5:05.07	4:14.69 (+50.38s \| 16.5%)	4:06.99 (+58.08s \| 19.0%)	4:06.99 (+58.08s \| 19.0%)	3:57.59 (+67.48s \| 22.1%)	3:48.79 (+76.28s \| 25.0%)	3:52.69 (+72.38s \| 23.7%)	4:55.29 (+9.78s \| 3.2%)