Mason Zhou

Age: 11 years old
Age Category: 11-12
Team: All Star Aquatics | Potomac Valley Swimming

Personal Best

Short course distance

Event

Time

Age

Date

Standard

Next Standard

All Star Aquatics

Potomac Valley Swimming

Eastern Zone

USA

Free 50 Y

33.35

10/11/2025

B: 32.79 (+0.56s | 1.7%)

642

1,000+

Free 100 Y

1:15.32

10/11/2025

B: 1:11.49 (+3.83s | 5.1%)

596

1,000+

50 Free

35.06

100 Free

40.26

1:15.32

100 Free

1:15.32

Free 200 Y

2:40.67

01/17/2026

B: 2:35.99 (+4.68s | 2.9%)

395

1,000+

50 Free

35.22

100 Free

41.08

1:16.30

100 Free

1:16.30

150 Free

43.71

2:00.02

200 Free

40.65

2:40.67

100 Free

1:24.36

Free 500 Y

7:07.91

02/13/2026

B: 6:59.89 (+8.02s | 1.9%)

323

1,000+

50 Free

33.58

100 Free

40.57

1:14.15

100 Free

1:14.15

150 Free

42.66

1:56.81

200 Free

44.19

2:41.00

100 Free

1:26.85

250 Free

43.88

3:24.88

300 Free

44.97

4:09.85

100 Free

1:28.85

350 Free

44.74

4:54.59

400 Free

44.85

5:39.44

100 Free

1:29.59

450 Free

45.68

6:25.12

500 Free

42.79

7:07.91

100 Free

1:28.47

Back 50 Y

36.37

10/11/2025

BB: 35.59 (+0.78s | 2.1%)

324

1,000+

Back 100 Y

1:23.98

12/11/2025

B: 1:22.19 (+1.79s | 2.1%)

438

1,000+

50 Back

40.57

100 Back

43.41

1:23.98

100 Back

1:23.98

Breast 50 Y

43.73

10/11/2025

B: 43.49 (+0.24s | 0.5%)

451

1,000+

Breast 100 Y

1:35.83

01/17/2026

B: 1:32.59 (+3.24s | 3.4%)

443

1,000+

50 Breast

45.31

100 Breast

50.52

1:35.83

100 Breast

1:35.83

Fly 50 Y

38.23

12/05/2025

B: 37.09 (+1.14s | 3.0%)

497

1,000+

Fly 100 Y

1:31.12

01/17/2026

B: 1:22.89 (+8.23s | 9.0%)

394

1,000+

50 Fly

40.97

100 Fly

50.15

1:31.12

100 Fly

1:31.12

IM 100 Y

1:23.17

02/13/2026

B: 1:21.89 (+1.28s | 1.5%)

473

1,000+

50 IM

38.12

100 IM

45.05

1:23.17

100 IM

1:23.17

IM 200 Y

3:01.49

11/14/2025

B: 2:59.29 (+2.20s | 1.2%)

386

1,000+

50 Fly

42.07

100 Back

47.19

1:29.26

100 IM

1:29.26

150 Breast

52.56

2:21.82

200 Free

39.67

3:01.49

100 IM

1:32.23

Long course distance

Event	Time	Age	Date	Next Standard	All Star Aquatics	Potomac Valley Swimming	Eastern Zone	USA
Free 100 M	1:43.80	9	05/17/2024	B: 1:22.09 (+21.71s \| 20.9%)	13	58	302	1,000+

Back 50 M	50.13	9	05/17/2024	B: 44.49 (+5.64s \| 11.3%)	11	47	247	1,000+

Fly 50 M	53.27	9	05/17/2024	B: 41.99 (+11.28s \| 21.2%)	12	45	222	1,000+

Above are the fastest times that Mason Zhou 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.

Short Course Distance

Event	Best Time	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ	SouthWestern Age Group Regional
Free 50 Y	33.35	22.19 (+11.16s \| 33.5%)	21.29 (+12.06s \| 36.2%)	21.29 (+12.06s \| 36.2%)	20.59 (+12.76s \| 38.3%)	20.09 (+13.26s \| 39.8%)	20.39 (+12.96s \| 38.9%)	29.59 (+3.76s \| 11.3%)
Free 100 Y	1:15.32	48.19 (+27.13s \| 36.0%)	46.39 (+28.93s \| 38.4%)	46.39 (+28.93s \| 38.4%)	45.09 (+30.23s \| 40.1%)	43.49 (+31.83s \| 42.3%)	44.39 (+30.93s \| 41.1%)	1:03.09 (+12.23s \| 16.2%)
Free 200 Y	2:40.67	1:45.79 (+54.88s \| 34.2%)	1:41.59 (+59.08s \| 36.8%)	1:41.59 (+59.08s \| 36.8%)	1:38.79 (+61.88s \| 38.5%)	1:36.49 (+64.18s \| 39.9%)	1:38.09 (+62.58s \| 38.9%)	2:17.79 (+22.88s \| 14.2%)
Free 500 Y	7:07.91	4:47.79 (+140.12s \| 32.7%)	4:37.09 (+150.82s \| 35.2%)	4:37.09 (+150.82s \| 35.2%)	4:29.49 (+158.42s \| 37.0%)	4:22.09 (+165.82s \| 38.8%)	4:27.69 (+160.22s \| 37.4%)	6:07.59 (+60.32s \| 14.1%)
Back 50 Y	36.37	N/A	N/A	N/A	N/A	N/A	N/A	33.79 (+2.58s \| 7.1%)
Back 100 Y	1:23.98	53.89 (+30.09s \| 35.8%)	51.49 (+32.49s \| 38.7%)	51.49 (+32.49s \| 38.7%)	49.39 (+34.59s \| 41.2%)	47.59 (+36.39s \| 43.3%)	48.89 (+35.09s \| 41.8%)	1:12.29 (+11.69s \| 13.9%)
Breast 50 Y	43.73	N/A	N/A	N/A	N/A	N/A	N/A	37.99 (+5.74s \| 13.1%)
Breast 100 Y	1:35.83	1:00.89 (+34.94s \| 36.5%)	57.99 (+37.84s \| 39.5%)	57.99 (+37.84s \| 39.5%)	55.89 (+39.94s \| 41.7%)	54.19 (+41.64s \| 43.5%)	55.29 (+40.54s \| 42.3%)	1:21.69 (+14.14s \| 14.8%)
Fly 50 Y	38.23	N/A	N/A	N/A	N/A	N/A	N/A	32.69 (+5.54s \| 14.5%)
Fly 100 Y	1:31.12	52.89 (+38.23s \| 42.0%)	50.59 (+40.53s \| 44.5%)	50.59 (+40.53s \| 44.5%)	48.99 (+42.13s \| 46.2%)	47.79 (+43.33s \| 47.6%)	48.39 (+42.73s \| 46.9%)	1:11.99 (+19.13s \| 21.0%)
IM 100 Y	1:23.17	N/A	N/A	N/A	N/A	N/A	N/A	1:12.79 (+10.38s \| 12.5%)
IM 200 Y	3:01.49	1:58.19 (+63.30s \| 34.9%)	1:53.89 (+67.60s \| 37.2%)	1:53.89 (+67.60s \| 37.2%)	1:50.09 (+71.40s \| 39.3%)	1:46.39 (+75.10s \| 41.4%)	1:48.89 (+72.60s \| 40.0%)	2:37.09 (+24.40s \| 13.4%)

Long Course Distance

Event	Best Time	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ	SouthWestern Age Group Regional
Free 100 M	1:43.80	56.09 (+47.71s \| 46.0%)	53.59 (+50.21s \| 48.4%)	53.59 (+50.21s \| 48.4%)	52.59 (+51.21s \| 49.3%)	50.99 (+52.81s \| 50.9%)	51.99 (+51.81s \| 49.9%)	1:12.19 (+31.61s \| 30.5%)
Back 50 M	50.13	N/A	N/A	N/A	N/A	N/A	N/A	39.19 (+10.94s \| 21.8%)
Fly 50 M	53.27	N/A	N/A	N/A	N/A	N/A	N/A	36.99 (+16.28s \| 30.6%)

Progression

See how Mason Zhou 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 Zhou 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

2026 ASA President S Day Classic

02/13/2026

Bethesda

100 Y Free

1:16.41

+1.09s

B: 1:11.49 (+4.92s | 6.4%)

50 Y Back

37.50

+1.13s

BB: 35.59 (+1.91s | 5.1%)

50 Y Breast

44.08

+0.35s

B: 43.49 (+0.59s | 1.3%)

50 Y Fly

38.79

+0.56s

B: 37.09 (+1.70s | 4.4%)

500 Y Free

7:07.91

-3.13s (New PB)

B: 6:59.89 (+8.02s | 1.9%)

50 Free

33.58

100 Free

40.57

1:14.15

100 Free

1:14.15

150 Free

42.66

1:56.81

200 Free

44.19

2:41.00

100 Free

1:26.85

250 Free

43.88

3:24.88

300 Free

44.97

4:09.85

100 Free

1:28.85

350 Free

44.74

4:54.59

400 Free

44.85

5:39.44

100 Free

1:29.59

450 Free

45.68

6:25.12

500 Free

42.79

7:07.91

100 Free

1:28.47

100 Y Breast

1:36.75

+0.92s

B: 1:32.59 (+4.16s | 4.3%)

50 Breast

45.69

100 Breast

51.06

1:36.75

100 Breast

1:36.75

100 Y IM

1:23.17

-1.18s (New PB)

B: 1:21.89 (+1.28s | 1.5%)

50 IM

38.12

100 IM

45.05

1:23.17

100 IM

1:23.17

PVS January Open 2026 Fairland

01/17/2026

Laurel

100 Y Back

1:24.00

+0.02s

A: 1:19.59 (+4.41s | 5.2%)

50 Back

40.21

100 Back

43.79

1:24.00

100 Back

1:24.00

200 Y IM

3:01.72

+0.23s

A: 2:53.49 (+8.23s | 4.5%)

50 Fly

41.45

100 Back

45.76

1:27.21

100 IM

1:27.21

150 Breast

54.60

2:21.81

200 Free

39.91

3:01.72

100 IM

1:34.51

100 Y Free

1:15.56

+0.24s

A: 1:09.79 (+5.77s | 7.6%)

50 Free

35.45

100 Free

40.11

1:15.56

100 Free

1:15.56

200 Y Free

2:40.67

-5.82s (New PB)

A: 2:31.59 (+9.08s | 5.7%)

50 Free

35.22

100 Free

41.08

1:16.30

100 Free

1:16.30

150 Free

43.71

2:00.02

200 Free

40.65

2:40.67

100 Free

1:24.36

100 Y Fly

1:31.12

A: 1:24.39 (+6.73s | 7.4%)

50 Fly

40.97

100 Fly

50.15

1:31.12

100 Fly

1:31.12

100 Y Breast

1:35.83

-9.86s (New PB)

A: 1:30.59 (+5.24s | 5.5%)

50 Breast

45.31

100 Breast

50.52

1:35.83

100 Breast

1:35.83

2025 Riley Eaton Holiday Invitational

12/11/2025

Boyds

200 Y Free

2:46.49

-0.52s (New PB)

A: 2:31.59 (+14.90s | 8.9%)

50 Free

36.03

100 Free

43.42

1:19.45

100 Free

1:19.45

150 Free

44.96

2:04.41

200 Free

42.08

2:46.49

100 Free

1:27.04

100 Y Back

1:23.98

-0.63s (New PB)

A: 1:19.59 (+4.39s | 5.2%)

50 Back

40.57

100 Back

43.41

1:23.98

100 Back

1:23.98

50 Y Back

36.82

+0.45s

AA: 35.79 (+1.03s | 2.8%)

2025 Christmas Championships

12/05/2025

Laurel

100 Y IM

1:24.35

-2.50s (New PB)

A: 1:19.69 (+4.66s | 5.5%)

50 IM

39.46

100 IM

44.89

1:24.35

100 IM

1:24.35

100 Y Back

1:24.61

-3.50s (New PB)

A: 1:19.59 (+5.02s | 5.9%)

50 Back

39.53

100 Back

45.08

1:24.61

100 Back

1:24.61

100 Y Free

1:18.10

+2.78s

A: 1:09.79 (+8.31s | 10.6%)

50 Free

36.15

100 Free

41.95

1:18.10

100 Free

1:18.10

50 Y Free

35.21

+1.86s

BB: 34.59 (+0.62s | 1.8%)

50 Y Breast

44.24

+0.51s

A: 42.09 (+2.15s | 4.9%)

50 Y Fly

38.23

-0.46s (New PB)

A: 35.99 (+2.24s | 5.9%)

2025PV November Open Fairland

11/14/2025

Laurel

100 Y Back

1:28.11

A: 1:19.59 (+8.52s | 9.7%)

50 Back

42.33

100 Back

45.78

1:28.11

100 Back

1:28.11

50 Y Back

37.68

+1.31s

A: 37.59 (+0.09s | 0.2%)

200 Y Free

2:53.01

+6.00s

BB: 2:50.59 (+2.42s | 1.4%)

50 Free

38.35

100 Free

44.91

1:23.26

100 Free

1:23.26

150 Free

45.54

2:08.80

200 Free

44.21

2:53.01

100 Free

1:29.75

100 Y Breast

1:45.69

BB: 1:42.29 (+3.40s | 3.2%)

50 Breast

50.07

100 Breast

55.62

1:45.69

100 Breast

1:45.69

100 Y IM

1:28.45

+1.60s

A: 1:19.69 (+8.76s | 9.9%)

50 IM

41.57

100 IM

46.88

1:28.45

100 IM

1:28.45

50 Y Free

33.60

+0.25s

A: 31.09 (+2.51s | 7.5%)

200 Y IM

3:01.49

A: 2:53.49 (+8.00s | 4.4%)

50 Fly

42.07

100 Back

47.19

1:29.26

100 IM

1:29.26

150 Breast

52.56

2:21.82

200 Free

39.67

3:01.49

100 IM

1:32.23

2025 ASA Age Group Distance Meet

10/25/2025

Bethesda, MD

200 Y Free

2:47.01

A: 2:31.59 (+15.42s | 9.2%)

500 Y Free

7:11.04

A: 6:43.39 (+27.65s | 6.4%)

50 Free

37.66

100 Free

42.49

1:20.15

100 Free

1:20.15

150 Free

43.33

2:03.48

200 Free

43.53

2:47.01

100 Free

1:26.86

250 Free

43.70

3:30.71

300 Free

44.24

4:14.95

100 Free

1:27.94

350 Free

45.20

5:00.15

400 Free

45.05

5:45.20

100 Free

1:30.25

450 Free

44.19

6:29.39

500 Free

41.65

7:11.04

100 Free

1:25.84

2025 ASA October Kick Off

10/11/2025

Bethesda

50 Y Fly

38.69

A: 35.99 (+2.70s | 7.0%)

50 Y Breast

43.73

A: 42.09 (+1.64s | 3.8%)

50 Y Back

36.37

AA: 35.79 (+0.58s | 1.6%)

100 Y Free

1:15.32

A: 1:09.79 (+5.53s | 7.3%)

50 Free

35.06

100 Free

40.26

1:15.32

100 Free

1:15.32

100 Y IM

1:26.85

A: 1:19.69 (+7.16s | 8.2%)

50 IM

38.71

100 IM

48.14

1:26.85

100 IM

1:26.85

50 Y Free

33.35

A: 31.09 (+2.26s | 6.8%)

HNVR Storm Surge 2024

05/17/2024

Stafford

50 M Fly

53.27

B: 52.29 (+0.98s | 1.8%)

50 M Back

50.13

BB: 49.29 (+0.84s | 1.7%)

100 M Free

1:43.80

B: 1:40.99 (+2.81s | 2.7%)

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	33.35	22.19 (+11.16s \| 33.5%)	21.29 (+12.06s \| 36.2%)	21.29 (+12.06s \| 36.2%)	20.59 (+12.76s \| 38.3%)	20.09 (+13.26s \| 39.8%)	20.39 (+12.96s \| 38.9%)	29.59 (+3.76s \| 11.3%)
Free 100 Y	1:15.32	48.19 (+27.13s \| 36.0%)	46.39 (+28.93s \| 38.4%)	46.39 (+28.93s \| 38.4%)	45.09 (+30.23s \| 40.1%)	43.49 (+31.83s \| 42.3%)	44.39 (+30.93s \| 41.1%)	1:03.09 (+12.23s \| 16.2%)
Free 200 Y	2:40.67	1:45.79 (+54.88s \| 34.2%)	1:41.59 (+59.08s \| 36.8%)	1:41.59 (+59.08s \| 36.8%)	1:38.79 (+61.88s \| 38.5%)	1:36.49 (+64.18s \| 39.9%)	1:38.09 (+62.58s \| 38.9%)	2:17.79 (+22.88s \| 14.2%)
Free 500 Y	7:07.91	4:47.79 (+140.12s \| 32.7%)	4:37.09 (+150.82s \| 35.2%)	4:37.09 (+150.82s \| 35.2%)	4:29.49 (+158.42s \| 37.0%)	4:22.09 (+165.82s \| 38.8%)	4:27.69 (+160.22s \| 37.4%)	6:07.59 (+60.32s \| 14.1%)
Back 50 Y	36.37	N/A	N/A	N/A	N/A	N/A	N/A	33.79 (+2.58s \| 7.1%)
Back 100 Y	1:23.98	53.89 (+30.09s \| 35.8%)	51.49 (+32.49s \| 38.7%)	51.49 (+32.49s \| 38.7%)	49.39 (+34.59s \| 41.2%)	47.59 (+36.39s \| 43.3%)	48.89 (+35.09s \| 41.8%)	1:12.29 (+11.69s \| 13.9%)
Breast 50 Y	43.73	N/A	N/A	N/A	N/A	N/A	N/A	37.99 (+5.74s \| 13.1%)
Breast 100 Y	1:35.83	1:00.89 (+34.94s \| 36.5%)	57.99 (+37.84s \| 39.5%)	57.99 (+37.84s \| 39.5%)	55.89 (+39.94s \| 41.7%)	54.19 (+41.64s \| 43.5%)	55.29 (+40.54s \| 42.3%)	1:21.69 (+14.14s \| 14.8%)
Fly 50 Y	38.23	N/A	N/A	N/A	N/A	N/A	N/A	32.69 (+5.54s \| 14.5%)
Fly 100 Y	1:31.12	52.89 (+38.23s \| 42.0%)	50.59 (+40.53s \| 44.5%)	50.59 (+40.53s \| 44.5%)	48.99 (+42.13s \| 46.2%)	47.79 (+43.33s \| 47.6%)	48.39 (+42.73s \| 46.9%)	1:11.99 (+19.13s \| 21.0%)
IM 100 Y	1:23.17	N/A	N/A	N/A	N/A	N/A	N/A	1:12.79 (+10.38s \| 12.5%)
IM 200 Y	3:01.49	1:58.19 (+63.30s \| 34.9%)	1:53.89 (+67.60s \| 37.2%)	1:53.89 (+67.60s \| 37.2%)	1:50.09 (+71.40s \| 39.3%)	1:46.39 (+75.10s \| 41.4%)	1:48.89 (+72.60s \| 40.0%)	2:37.09 (+24.40s \| 13.4%)