Mason Grundhoefer

Age: 15 years old
Age Category: 15-16
Team: Hydra Aquatics | Potomac Valley Swimming

Personal Best

Short course distance

Event	Time		Age	Date	Standard	Next Standard
Free 50 Y	26.72		14	03/12/2026	BB Min	A: 25.59 (+1.13s \| 4.2%)

Free 100 Y	57.73	Analysis	14	01/30/2026	BB Min	A: 55.69 (+2.04s \| 3.5%)

Free 200 Y	2:27.93	Analysis	14	11/14/2025		B: 2:22.49 (+5.44s \| 3.7%)

Free 500 Y	7:00.05	Analysis	14	10/25/2025		B: 6:25.69 (+34.36s \| 8.2%)

Back 50 Y	28.14		14	01/17/2026

Back 100 Y	1:01.66	Analysis	14	02/06/2026	BB Min	A: 1:01.09 (+0.57s \| 0.9%)

Back 200 Y	2:20.46	Analysis	14	01/17/2026	BB Min	A: 2:12.59 (+7.87s \| 5.6%)

Breast 50 Y	37.47		14	01/17/2026

Breast 100 Y	1:28.71	Analysis	14	11/14/2025		B: 1:20.49 (+8.22s \| 9.3%)

Fly 50 Y	29.17		14	01/17/2026

Fly 100 Y	1:08.85	Analysis	14	12/05/2025	B Min	BB: 1:05.49 (+3.36s \| 4.9%)

IM 200 Y	2:40.65	Analysis	14	11/14/2025		B: 2:37.99 (+2.66s \| 1.7%)

Long course distance

Event	Time		Age	Date	Standard	Next Standard
Free 50 M	30.32		14	05/01/2026	BB Min	A: 29.39 (+0.93s \| 3.1%)

Free 100 M	1:11.12	Analysis	14	01/03/2026	B Min	BB: 1:09.79 (+1.33s \| 1.9%)

Free 200 M	2:36.75	Analysis	14	05/01/2026	B Min	BB: 2:32.29 (+4.46s \| 2.8%)

Back 100 M	1:15.65	Analysis	14	01/03/2026	BB Min	A: 1:11.69 (+3.96s \| 5.2%)

Back 200 M	2:50.18	Analysis	14	05/01/2026	B Min	BB: 2:48.79 (+1.39s \| 0.8%)

Breast 100 M	1:45.57	Analysis	14	01/03/2026		B: 1:33.79 (+11.78s \| 11.2%)

Fly 100 M	1:20.27	Analysis	14	01/03/2026	B Min	BB: 1:14.59 (+5.68s \| 7.1%)

Above are the fastest times that Mason Grundhoefer has achieved in his swimming career. For each event, you can find Mason's best time, the corresponding time standard, as well as how much faster Mason needs to be to reach the next level. The last columns provide Mason rankings at the team and LSC levels. These rankings are based on the Mason'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
Got the Bonus time standard (extra events for qualified swimmers)

Short Course Distance

Event	Best Time	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ
Free 50 Y	26.72	22.19 (+4.53s \| 17.0%) 22.79 (+3.93s \| 14.7%)	21.29 (+5.43s \| 20.3%)	21.29 (+5.43s \| 20.3%)	20.49 (+6.23s \| 23.3%)	19.69 (+7.03s \| 26.3%)	20.39 (+6.33s \| 23.7%)
Free 100 Y	57.73	48.19 (+9.54s \| 16.5%) 49.49 (+8.24s \| 14.3%)	46.39 (+11.34s \| 19.6%)	46.39 (+11.34s \| 19.6%)	44.89 (+12.84s \| 22.2%)	43.09 (+14.64s \| 25.4%)	44.39 (+13.34s \| 23.1%)
Free 200 Y	2:27.93	1:45.79 (+42.14s \| 28.5%) 1:48.79 (+39.14s \| 26.5%)	1:41.59 (+46.34s \| 31.3%)	1:41.59 (+46.34s \| 31.3%)	1:38.39 (+49.54s \| 33.5%)	1:34.99 (+52.94s \| 35.8%)	1:38.09 (+49.84s \| 33.7%)
Free 500 Y	7:00.05	4:47.79 (+132.26s \| 31.5%) 4:55.99 (+124.06s \| 29.5%)	4:37.09 (+142.96s \| 34.0%)	4:37.09 (+142.96s \| 34.0%)	4:28.79 (+151.26s \| 36.0%)	4:19.89 (+160.16s \| 38.1%)	4:27.69 (+152.36s \| 36.3%)
Back 50 Y	28.14	24.79 (+3.35s \| 11.9%) 25.39 (+2.75s \| 9.8%)	N/A	N/A	N/A	21.49 (+6.65s \| 23.6%)	N/A
Back 100 Y	1:01.66	53.89 (+7.77s \| 12.6%) 55.39 (+6.27s \| 10.2%)	51.49 (+10.17s \| 16.5%)	51.49 (+10.17s \| 16.5%)	49.19 (+12.47s \| 20.2%)	46.99 (+14.67s \| 23.8%)	48.89 (+12.77s \| 20.7%)
Back 200 Y	2:20.46	1:57.29 (+23.17s \| 16.5%) 2:00.59 (+19.87s \| 14.1%)	1:52.79 (+27.67s \| 19.7%)	1:52.79 (+27.67s \| 19.7%)	1:47.79 (+32.67s \| 23.3%)	1:43.29 (+37.17s \| 26.5%)	1:47.09 (+33.37s \| 23.8%)
Breast 50 Y	37.47	27.69 (+9.78s \| 26.1%) 28.09 (+9.38s \| 25.0%)	N/A	N/A	N/A	24.39 (+13.08s \| 34.9%)	N/A
Breast 100 Y	1:28.71	1:00.89 (+27.82s \| 31.4%) 1:02.59 (+26.12s \| 29.4%)	57.99 (+30.72s \| 34.6%)	57.99 (+30.72s \| 34.6%)	55.49 (+33.22s \| 37.4%)	53.29 (+35.42s \| 39.9%)	55.29 (+33.42s \| 37.7%)
Fly 50 Y	29.17	24.09 (+5.08s \| 17.4%) 24.39 (+4.78s \| 16.4%)	N/A	N/A	N/A	21.19 (+7.98s \| 27.4%)	N/A
Fly 100 Y	1:08.85	52.89 (+15.96s \| 23.2%) 54.39 (+14.46s \| 21.0%)	50.59 (+18.26s \| 26.5%)	50.59 (+18.26s \| 26.5%)	48.69 (+20.16s \| 29.3%)	46.69 (+22.16s \| 32.2%)	48.39 (+20.46s \| 29.7%)
IM 200 Y	2:40.65	1:58.19 (+42.46s \| 26.4%) 2:01.59 (+39.06s \| 24.3%)	1:53.89 (+46.76s \| 29.1%)	1:53.89 (+46.76s \| 29.1%)	1:49.59 (+51.06s \| 31.8%)	1:45.39 (+55.26s \| 34.4%)	1:48.89 (+51.76s \| 32.2%)

Long Course Distance

Event	Best Time	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ
Free 50 M	30.32	25.89 (+4.43s \| 14.6%) 26.59 (+3.73s \| 12.3%)	24.59 (+5.73s \| 18.9%)	24.59 (+5.73s \| 18.9%)	24.09 (+6.23s \| 20.5%)	23.29 (+7.03s \| 23.2%)	23.79 (+6.53s \| 21.5%)
Free 100 M	1:11.12	56.09 (+15.03s \| 21.1%) 57.69 (+13.43s \| 18.9%)	53.59 (+17.53s \| 24.6%)	53.59 (+17.53s \| 24.6%)	52.59 (+18.53s \| 26.1%)	50.89 (+20.23s \| 28.4%)	51.99 (+19.13s \| 26.9%)
Free 200 M	2:36.75	2:03.09 (+33.66s \| 21.5%) 2:06.59 (+30.16s \| 19.2%)	1:57.79 (+38.96s \| 24.9%)	1:57.79 (+38.96s \| 24.9%)	1:55.29 (+41.46s \| 26.4%)	1:51.99 (+44.76s \| 28.6%)	1:54.09 (+42.66s \| 27.2%)
Back 100 M	1:15.65	1:03.29 (+12.36s \| 16.3%) 1:05.09 (+10.56s \| 14.0%)	1:00.59 (+15.06s \| 19.9%)	1:00.59 (+15.06s \| 19.9%)	58.79 (+16.86s \| 22.3%)	56.89 (+18.76s \| 24.8%)	58.19 (+17.46s \| 23.1%)
Back 200 M	2:50.18	2:17.39 (+32.79s \| 19.3%) 2:21.29 (+28.89s \| 17.0%)	2:11.89 (+38.29s \| 22.5%)	2:11.89 (+38.29s \| 22.5%)	2:08.29 (+41.89s \| 24.6%)	2:04.59 (+45.59s \| 26.8%)	2:06.99 (+43.19s \| 25.4%)
Breast 100 M	1:45.57	1:11.29 (+34.28s \| 32.5%) 1:13.29 (+32.28s \| 30.6%)	1:08.19 (+37.38s \| 35.4%)	1:08.19 (+37.38s \| 35.4%)	1:05.89 (+39.68s \| 37.6%)	1:03.69 (+41.88s \| 39.7%)	1:05.29 (+40.28s \| 38.2%)
Fly 100 M	1:20.27	1:00.89 (+19.38s \| 24.1%) 1:02.59 (+17.68s \| 22.0%)	57.99 (+22.28s \| 27.8%)	57.99 (+22.28s \| 27.8%)	56.49 (+23.78s \| 29.6%)	54.69 (+25.58s \| 31.9%)	55.99 (+24.28s \| 30.2%)

Progression

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

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Meets

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

Event

Time

Progress

Standard

Next Standard

Age

Heat

Lane

Ranking

Speedo Spring Splash

05/01/2026

Manassas

200 M Back

2:50.18

-0.43s (New PB)

BB: 2:48.79 (+1.39s | 0.8%)

50 Back

39.65

200 Back

2:10.53

2:50.18

100 Back

2:10.53

200 M Free

2:36.75

BB: 2:32.29 (+4.46s | 2.8%)

100 Free

1:14.60

100 Free

1:14.60

200 Free

1:22.15

2:36.75

100 Free

1:22.15

50 M Free

30.32

-0.94s (New PB)

A: 29.39 (+0.93s | 3.1%)

2026 PV SC 14 Under Championships Copied

03/12/2026

College Park

100 Y Back

1:02.19

+0.53s

A: 1:01.09 (+1.10s | 1.8%)

50 Back

30.32

100 Back

31.87

1:02.19

100 Back

1:02.19

50 Y Back

28.70

+0.56s

AA: 27.69 (+1.01s | 3.5%)

50 Y Free

26.72

-0.16s (New PB)

A: 25.59 (+1.13s | 4.2%)

2026 METRO Championships

02/06/2026

Boyds

100 Y Back

1:01.66

-0.90s (New PB)

A: 1:01.09 (+0.57s | 0.9%)

50 Back

29.60

100 Back

32.06

1:01.66

100 Back

1:01.66

2026 WMPSSDL Championships

01/30/2026

Laurel

100 Y Free

57.73

-2.17s (New PB)

A: 55.69 (+2.04s | 3.5%)

50 Free

27.53

100 Free

30.20

57.73

100 Free

57.73

100 Y Back

1:03.06

+0.50s

A: 1:01.09 (+1.97s | 3.1%)

50 Back

30.02

100 Back

33.04

1:03.06

100 Back

1:03.06

2026 PV January Open Audrey Moore

01/17/2026

Annandale

50 Y Breast

37.47

-17.69s (New PB)

BB: 35.79 (+1.68s | 4.5%)

50 Y Free

26.88

-1.02s (New PB)

A: 25.59 (+1.29s | 4.8%)

50 Y Fly

29.17

-0.90s (New PB)

A: 28.39 (+0.78s | 2.7%)

100 Y Free

59.90

-2.22s (New PB)

A: 55.69 (+4.21s | 7.0%)

50 Free

28.93

100 Free

30.97

59.90

100 Free

59.90

50 Y Back

28.14

-1.22s (New PB)

AA: 27.69 (+0.45s | 1.6%)

100 Y Back

1:02.56

-0.94s (New PB)

A: 1:01.09 (+1.47s | 2.3%)

50 Back

30.52

100 Back

32.04

1:02.56

100 Back

1:02.56

200 Y Back

2:20.46

-5.79s (New PB)

A: 2:12.59 (+7.87s | 5.6%)

50 Back

32.54

100 Back

35.47

1:08.01

100 Back

1:08.01

150 Back

36.58

1:44.59

200 Back

35.87

2:20.46

100 Back

1:12.45

2026 AAC LC Invite

01/03/2026

Arlington

100 M Back

1:15.65

A: 1:11.69 (+3.96s | 5.2%)

100 M Fly

1:20.27

BB: 1:14.59 (+5.68s | 7.1%)

50 Fly

35.30

100 Fly

44.97

1:20.27

100 Fly

1:20.27

100 M Breast

1:45.57

B: 1:33.79 (+11.78s | 11.2%)

50 Breast

50.19

100 Breast

55.38

1:45.57

100 Breast

1:45.57

50 M Free

31.26

A: 29.39 (+1.87s | 6.0%)

200 M Back

2:50.61

BB: 2:48.79 (+1.82s | 1.1%)

50 Back

38.34

100 Back

45.23

1:23.57

100 Back

1:23.57

150 Back

45.04

2:08.61

200 Back

42.00

2:50.61

100 Back

1:27.04

100 M Free

1:11.12

BB: 1:09.79 (+1.33s | 1.9%)

50 Free

32.84

100 Free

38.28

1:11.12

100 Free

1:11.12

2025 Christmas Championships

12/05/2025

Laurel

50 Y Back

29.36

-2.13s (New PB)

A: 28.89 (+0.47s | 1.6%)

100 Y Back

1:03.50

-3.86s (New PB)

A: 1:01.09 (+2.41s | 3.8%)

50 Back

30.44

100 Back

33.06

1:03.50

100 Back

1:03.50

200 Y Back

2:26.25

BB: 2:23.69 (+2.56s | 1.8%)

50 Back

34.00

100 Back

37.38

1:11.38

100 Back

1:11.38

150 Back

39.17

1:50.55

200 Back

35.70

2:26.25

100 Back

1:14.87

50 Y Fly

30.07

-1.39s (New PB)

A: 28.39 (+1.68s | 5.6%)

100 Y Free

1:02.12

BB: 1:00.29 (+1.83s | 2.9%)

50 Free

29.81

100 Free

32.31

1:02.12

100 Free

1:02.12

100 Y Fly

1:08.85

BB: 1:05.49 (+3.36s | 4.9%)

50 Fly

31.04

100 Fly

37.81

1:08.85

100 Fly

1:08.85

ISCA Fall Classic Championship 2025

11/14/2025

Hampton

100 Y Breast

1:28.71

B: 1:20.49 (+8.22s | 9.3%)

50 Breast

42.12

100 Breast

46.59

1:28.71

100 Breast

1:28.71

50 Y Fly

31.46

-17.50s (New PB)

BB: 30.79 (+0.67s | 2.1%)

100 Y Back

1:07.36

BB: 1:06.19 (+1.17s | 1.7%)

50 Back

32.68

100 Back

34.67

1:07.36

100 Back

1:07.36

50 Y Free

27.90

BB: 27.69 (+0.21s | 0.8%)

50 Y Back

31.49

-11.10s (New PB)

BB: 31.29 (+0.20s | 0.6%)

200 Y IM

2:40.65

B: 2:37.99 (+2.66s | 1.7%)

50 Fly

33.72

100 Back

36.63

1:10.35

100 IM

1:10.35

150 Breast

52.07

2:02.42

200 Free

38.23

2:40.65

100 IM

1:30.30

200 Y Free

2:27.93

-11.12s (New PB)

B: 2:22.49 (+5.44s | 3.7%)

50 Free

34.33

100 Free

37.80

1:12.13

100 Free

1:12.13

150 Free

39.84

1:51.97

200 Free

35.96

2:27.93

100 Free

1:15.80

2025 ASA Age Group Distance Meet

10/25/2025

Bethesda, MD

500 Y Free

7:00.05

B: 6:25.69 (+34.36s | 8.2%)

50 Free

35.21

100 Free

39.39

1:14.60

100 Free

1:14.60

150 Free

41.78

1:56.38

200 Free

42.67

2:39.05

100 Free

1:24.45

350 Free

2:13.17

4:52.22

500 Free

2:07.83

7:00.05

100 Free

2:07.83

200 Y Free

2:39.05

B: 2:22.49 (+16.56s | 10.4%)

2021 VA STAT Winter Champs

12/10/2021

Stafford

50 Y Back

42.59

A: 37.59 (+5.00s | 11.7%)

50 Y Breast

55.16

B: 53.39 (+1.77s | 3.2%)

50 Y Fly

48.96

B: 46.49 (+2.47s | 5.0%)

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
Free 50 Y	26.72	22.19 (+4.53s \| 17.0%) 22.79 (+3.93s \| 14.7%)	21.29 (+5.43s \| 20.3%)	21.29 (+5.43s \| 20.3%)	20.49 (+6.23s \| 23.3%)	19.69 (+7.03s \| 26.3%)	20.39 (+6.33s \| 23.7%)
Free 100 Y	57.73	48.19 (+9.54s \| 16.5%) 49.49 (+8.24s \| 14.3%)	46.39 (+11.34s \| 19.6%)	46.39 (+11.34s \| 19.6%)	44.89 (+12.84s \| 22.2%)	43.09 (+14.64s \| 25.4%)	44.39 (+13.34s \| 23.1%)
Free 200 Y	2:27.93	1:45.79 (+42.14s \| 28.5%) 1:48.79 (+39.14s \| 26.5%)	1:41.59 (+46.34s \| 31.3%)	1:41.59 (+46.34s \| 31.3%)	1:38.39 (+49.54s \| 33.5%)	1:34.99 (+52.94s \| 35.8%)	1:38.09 (+49.84s \| 33.7%)
Free 500 Y	7:00.05	4:47.79 (+132.26s \| 31.5%) 4:55.99 (+124.06s \| 29.5%)	4:37.09 (+142.96s \| 34.0%)	4:37.09 (+142.96s \| 34.0%)	4:28.79 (+151.26s \| 36.0%)	4:19.89 (+160.16s \| 38.1%)	4:27.69 (+152.36s \| 36.3%)
Back 50 Y	28.14	24.79 (+3.35s \| 11.9%) 25.39 (+2.75s \| 9.8%)	N/A	N/A	N/A	21.49 (+6.65s \| 23.6%)	N/A
Back 100 Y	1:01.66	53.89 (+7.77s \| 12.6%) 55.39 (+6.27s \| 10.2%)	51.49 (+10.17s \| 16.5%)	51.49 (+10.17s \| 16.5%)	49.19 (+12.47s \| 20.2%)	46.99 (+14.67s \| 23.8%)	48.89 (+12.77s \| 20.7%)
Back 200 Y	2:20.46	1:57.29 (+23.17s \| 16.5%) 2:00.59 (+19.87s \| 14.1%)	1:52.79 (+27.67s \| 19.7%)	1:52.79 (+27.67s \| 19.7%)	1:47.79 (+32.67s \| 23.3%)	1:43.29 (+37.17s \| 26.5%)	1:47.09 (+33.37s \| 23.8%)
Breast 50 Y	37.47	27.69 (+9.78s \| 26.1%) 28.09 (+9.38s \| 25.0%)	N/A	N/A	N/A	24.39 (+13.08s \| 34.9%)	N/A
Breast 100 Y	1:28.71	1:00.89 (+27.82s \| 31.4%) 1:02.59 (+26.12s \| 29.4%)	57.99 (+30.72s \| 34.6%)	57.99 (+30.72s \| 34.6%)	55.49 (+33.22s \| 37.4%)	53.29 (+35.42s \| 39.9%)	55.29 (+33.42s \| 37.7%)
Fly 50 Y	29.17	24.09 (+5.08s \| 17.4%) 24.39 (+4.78s \| 16.4%)	N/A	N/A	N/A	21.19 (+7.98s \| 27.4%)	N/A
Fly 100 Y	1:08.85	52.89 (+15.96s \| 23.2%) 54.39 (+14.46s \| 21.0%)	50.59 (+18.26s \| 26.5%)	50.59 (+18.26s \| 26.5%)	48.69 (+20.16s \| 29.3%)	46.69 (+22.16s \| 32.2%)	48.39 (+20.46s \| 29.7%)
IM 200 Y	2:40.65	1:58.19 (+42.46s \| 26.4%) 2:01.59 (+39.06s \| 24.3%)	1:53.89 (+46.76s \| 29.1%)	1:53.89 (+46.76s \| 29.1%)	1:49.59 (+51.06s \| 31.8%)	1:45.39 (+55.26s \| 34.4%)	1:48.89 (+51.76s \| 32.2%)

Event	Best Time	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ
Free 50 M	30.32	25.89 (+4.43s \| 14.6%) 26.59 (+3.73s \| 12.3%)	24.59 (+5.73s \| 18.9%)	24.59 (+5.73s \| 18.9%)	24.09 (+6.23s \| 20.5%)	23.29 (+7.03s \| 23.2%)	23.79 (+6.53s \| 21.5%)
Free 100 M	1:11.12	56.09 (+15.03s \| 21.1%) 57.69 (+13.43s \| 18.9%)	53.59 (+17.53s \| 24.6%)	53.59 (+17.53s \| 24.6%)	52.59 (+18.53s \| 26.1%)	50.89 (+20.23s \| 28.4%)	51.99 (+19.13s \| 26.9%)
Free 200 M	2:36.75	2:03.09 (+33.66s \| 21.5%) 2:06.59 (+30.16s \| 19.2%)	1:57.79 (+38.96s \| 24.9%)	1:57.79 (+38.96s \| 24.9%)	1:55.29 (+41.46s \| 26.4%)	1:51.99 (+44.76s \| 28.6%)	1:54.09 (+42.66s \| 27.2%)
Back 100 M	1:15.65	1:03.29 (+12.36s \| 16.3%) 1:05.09 (+10.56s \| 14.0%)	1:00.59 (+15.06s \| 19.9%)	1:00.59 (+15.06s \| 19.9%)	58.79 (+16.86s \| 22.3%)	56.89 (+18.76s \| 24.8%)	58.19 (+17.46s \| 23.1%)
Back 200 M	2:50.18	2:17.39 (+32.79s \| 19.3%) 2:21.29 (+28.89s \| 17.0%)	2:11.89 (+38.29s \| 22.5%)	2:11.89 (+38.29s \| 22.5%)	2:08.29 (+41.89s \| 24.6%)	2:04.59 (+45.59s \| 26.8%)	2:06.99 (+43.19s \| 25.4%)
Breast 100 M	1:45.57	1:11.29 (+34.28s \| 32.5%) 1:13.29 (+32.28s \| 30.6%)	1:08.19 (+37.38s \| 35.4%)	1:08.19 (+37.38s \| 35.4%)	1:05.89 (+39.68s \| 37.6%)	1:03.69 (+41.88s \| 39.7%)	1:05.29 (+40.28s \| 38.2%)
Fly 100 M	1:20.27	1:00.89 (+19.38s \| 24.1%) 1:02.59 (+17.68s \| 22.0%)	57.99 (+22.28s \| 27.8%)	57.99 (+22.28s \| 27.8%)	56.49 (+23.78s \| 29.6%)	54.69 (+25.58s \| 31.9%)	55.99 (+24.28s \| 30.2%)