Ethan Zhou

Age: 15 years old
Age Category: 15-16
Team: North Bay Aquatics | Pacific Swimming

Personal Best

Short course distance

Event	Time	Age	Date	Standard	Next Standard	North Bay Aquatics	Pacific Swimming	Western Zone	USA
Free 50 Y	23.83	14	07/18/2025	A	AA: 23.19 (+0.64s \| 2.7%)	4	225	881	1,000+

Free 100 Y	51.50	14	07/18/2025	A	AA: 50.99 (+0.51s \| 1.0%)	3	202	803	1,000+

Free 200 Y	1:49.87	14	07/18/2025	AA	AAA: 1:46.89 (+2.98s \| 2.7%)	1	113	421	1,000+

Free 500 Y	5:02.48	14	07/18/2025	AA	AAA: 4:49.49 (+12.99s \| 4.3%)	1	121	454	1,000+

Back 50 Y	30.29	14	02/01/2025			4	200	952	1,000+

Back 100 Y	1:01.45	14	07/18/2025	BB	A: 57.89 (+3.56s \| 5.8%)	2	238	1,000+	1,000+

Back 200 Y	2:12.14	14	07/18/2025	BB	A: 2:06.59 (+5.55s \| 4.2%)	2	157	722	1,000+

Breast 50 Y	37.63	12	01/21/2023			6	377	1,000+	1,000+

Breast 100 Y	1:44.43	9	02/08/2020		B: 1:16.89 (+27.54s \| 26.4%)	10	1,000+	1,000+	1,000+

Fly 50 Y	46.78	8	02/09/2019			11	1,000+	1,000+	1,000+

IM 200 Y	2:12.40	14	07/18/2025	BB	A: 2:09.39 (+3.01s \| 2.3%)	3	256	997	1,000+

IM 400 Y	4:49.61	14	07/18/2025	BB	A: 4:36.19 (+13.42s \| 4.6%)	1	201	813	1,000+

Long course distance

Event	Time	Age	Date	Standard	Next Standard	North Bay Aquatics	Pacific Swimming	Western Zone	USA
Free 50 M	27.41	14	07/11/2025	A	AA: 26.99 (+0.42s \| 1.5%)	3	186	741	1,000+

Free 100 M	59.45	14	07/11/2025	A	AA: 58.99 (+0.46s \| 0.8%)	2	162	615	1,000+

Free 200 M	2:08.22	14	07/11/2025	AA	AAA: 2:03.09 (+5.13s \| 4.0%)	1	98	384	887

Free 400 M	4:41.57	14	07/11/2025	A	AA: 4:34.39 (+7.18s \| 2.5%)	1	118	487	1,000+

Back 100 M	1:15.96	14	06/21/2025	B	BB: 1:13.69 (+2.27s \| 3.0%)	3	253	1,000+	1,000+

IM 200 M	2:37.01	14	06/21/2025	BB	A: 2:30.99 (+6.02s \| 3.8%)	2	227	901	1,000+

Above are the fastest times that Ethan Zhou has achieved in his swimming career. For each event, you can find Ethan's best time, the corresponding time standard, as well as how much faster Ethan needs to be to reach the next level. The last columns provide Ethan rankings at the team and LSC levels. These rankings are based on the Ethan'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	Far Western	Senior Open	Senior 2	Western Zone Sr.	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ	NATIONAL
Free 50 Y	23.83	22.79 (+1.04s \| 4.4%)	26.89	24.79	23.29 (+0.54s \| 2.3%)	22.19 (+1.64s \| 6.9%)	21.29 (+2.54s \| 10.7%)	21.29 (+2.54s \| 10.7%)	20.59 (+3.24s \| 13.6%)	20.09 (+3.74s \| 15.7%)	20.39 (+3.44s \| 14.4%)	N/A
Free 100 Y	51.50	50.09 (+1.41s \| 2.7%)	58.69	54.19	51.19 (+0.31s \| 0.6%)	48.19 (+3.31s \| 6.4%)	46.39 (+5.11s \| 9.9%)	46.39 (+5.11s \| 9.9%)	45.09 (+6.41s \| 12.4%)	43.49 (+8.01s \| 15.6%)	44.39 (+7.11s \| 13.8%)	N/A
Free 200 Y	1:49.87	1:48.89 (+0.98s \| 0.9%)	2:08.39	1:58.59	1:52.09	1:45.79 (+4.08s \| 3.7%)	1:41.59 (+8.28s \| 7.5%)	1:41.59 (+8.28s \| 7.5%)	1:38.79 (+11.08s \| 10.1%)	1:36.49 (+13.38s \| 12.2%)	1:38.09 (+11.78s \| 10.7%)	N/A
Free 500 Y	5:02.48	4:55.99 (+6.49s \| 2.1%)	5:47.89	5:21.19	5:04.39	4:47.79 (+14.69s \| 4.9%)	4:37.09 (+25.39s \| 8.4%)	4:37.09 (+25.39s \| 8.4%)	4:29.49 (+32.99s \| 10.9%)	4:22.09 (+40.39s \| 13.4%)	4:27.69 (+34.79s \| 11.5%)	N/A
Back 50 Y	30.29	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Back 100 Y	1:01.45	55.19 (+6.26s \| 10.2%)	1:04.69	59.79 (+1.66s \| 2.7%)	55.99 (+5.46s \| 8.9%)	53.89 (+7.56s \| 12.3%)	51.49 (+9.96s \| 16.2%)	51.49 (+9.96s \| 16.2%)	49.39 (+12.06s \| 19.6%)	47.59 (+13.86s \| 22.6%)	48.89 (+12.56s \| 20.4%)	N/A
Back 200 Y	2:12.14	2:00.59 (+11.55s \| 8.7%)	2:20.69	2:09.89 (+2.25s \| 1.7%)	2:01.59 (+10.55s \| 8.0%)	1:57.29 (+14.85s \| 11.2%)	1:52.79 (+19.35s \| 14.6%)	1:52.79 (+19.35s \| 14.6%)	1:48.29 (+23.85s \| 18.0%)	1:45.49 (+26.65s \| 20.2%)	1:47.09 (+25.05s \| 19.0%)	N/A
Breast 50 Y	37.63	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Breast 100 Y	1:44.43	1:03.89 (+40.54s \| 38.8%)	1:13.59 (+30.84s \| 29.5%)	1:07.89 (+36.54s \| 35.0%)	1:02.89 (+41.54s \| 39.8%)	1:00.89 (+43.54s \| 41.7%)	57.99 (+46.44s \| 44.5%)	57.99 (+46.44s \| 44.5%)	55.89 (+48.54s \| 46.5%)	54.19 (+50.24s \| 48.1%)	55.29 (+49.14s \| 47.1%)	N/A
Fly 50 Y	46.78	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
IM 200 Y	2:12.40	2:03.09 (+9.31s \| 7.0%)	2:23.29	2:12.29 (+0.11s \| 0.1%)	2:04.69 (+7.71s \| 5.8%)	1:58.19 (+14.21s \| 10.7%)	1:53.89 (+18.51s \| 14.0%)	1:53.89 (+18.51s \| 14.0%)	1:50.09 (+22.31s \| 16.9%)	1:46.39 (+26.01s \| 19.6%)	1:48.89 (+23.51s \| 17.8%)	N/A
IM 400 Y	4:49.61	4:25.59 (+24.02s \| 8.3%)	5:07.69	4:43.99 (+5.62s \| 1.9%)	4:28.59 (+21.02s \| 7.3%)	4:14.69 (+34.92s \| 12.1%)	4:06.99 (+42.62s \| 14.7%)	4:06.99 (+42.62s \| 14.7%)	3:57.59 (+52.02s \| 18.0%)	3:48.79 (+60.82s \| 21.0%)	3:52.69 (+56.92s \| 19.7%)	N/A

Long Course Distance

Event	Best Time	Far Western	Senior Open	Senior 2	Western Zone Sr.	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ	NATIONAL	U.S Olympic Team Trials
Free 50 M	27.41	26.29 (+1.12s \| 4.1%)	30.19	27.89	26.79 (+0.62s \| 2.3%)	25.89 (+1.52s \| 5.5%)	24.59 (+2.82s \| 10.3%)	24.59 (+2.82s \| 10.3%)	24.29 (+3.12s \| 11.4%)	23.39 (+4.02s \| 14.7%)	23.79 (+3.62s \| 13.2%)	N/A	22.79 (+4.62s \| 16.9%)
Free 100 M	59.45	57.19 (+2.26s \| 3.8%)	1:07.39	1:02.19	59.19 (+0.26s \| 0.4%)	56.09 (+3.36s \| 5.7%)	53.59 (+5.86s \| 9.9%)	53.59 (+5.86s \| 9.9%)	52.59 (+6.86s \| 11.5%)	50.99 (+8.46s \| 14.2%)	51.99 (+7.46s \| 12.5%)	N/A	49.99 (+9.46s \| 15.9%)
Free 200 M	2:08.22	2:05.69 (+2.53s \| 2.0%)	2:27.89	2:16.49	2:09.29	2:03.09 (+5.13s \| 4.0%)	1:57.79 (+10.43s \| 8.1%)	1:57.79 (+10.43s \| 8.1%)	1:55.49 (+12.73s \| 9.9%)	1:52.19 (+16.03s \| 12.5%)	1:54.09 (+14.13s \| 11.0%)	N/A	1:49.99 (+18.23s \| 14.2%)
Free 400 M	4:41.57	4:26.99 (+14.58s \| 5.2%)	5:12.79	4:48.69	4:34.19 (+7.38s \| 2.6%)	4:21.09 (+20.48s \| 7.3%)	4:09.99 (+31.58s \| 11.2%)	4:09.99 (+31.58s \| 11.2%)	4:05.29 (+36.28s \| 12.9%)	3:59.29 (+42.28s \| 15.0%)	4:02.79 (+38.78s \| 13.8%)	N/A	3:55.59 (+45.98s \| 16.3%)
Back 100 M	1:15.96	1:04.59 (+11.37s \| 15.0%)	1:15.49 (+0.47s \| 0.6%)	1:09.69 (+6.27s \| 8.3%)	1:05.89 (+10.07s \| 13.3%)	1:03.29 (+12.67s \| 16.7%)	1:00.59 (+15.37s \| 20.2%)	1:00.59 (+15.37s \| 20.2%)	58.89 (+17.07s \| 22.5%)	57.29 (+18.67s \| 24.6%)	58.19 (+17.77s \| 23.4%)	N/A	55.69 (+20.27s \| 26.7%)
IM 200 M	2:37.01	2:21.29 (+15.72s \| 10.0%)	2:45.49	2:32.79 (+4.22s \| 2.7%)	2:25.09 (+11.92s \| 7.6%)	2:18.39 (+18.62s \| 11.9%)	2:12.79 (+24.22s \| 15.4%)	2:12.79 (+24.22s \| 15.4%)	2:09.59 (+27.42s \| 17.5%)	2:05.79 (+31.22s \| 19.9%)	2:08.19 (+28.82s \| 18.4%)	N/A	2:03.49 (+33.52s \| 21.3%)

Progression

See how Ethan Zhou is improving gradually by choosing the distance and the stroke you are interested in. You can also compare the Ethan'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 Ethan Zhou has participated in and his achievement. The last event displayed is the most recent. For each event, you can find the Ethan's time, the progress against Ethan's best time, the corresponding time standard, as well as how much faster Ethan needs to be to reach the next level.

Event

Time

Progress

Standard

Next Standard

Age

Heat

Lane

Ranking

2025 Redwood Empire Swim League Championship

07/18/2025

Oakland

500 Y Free

5:02.48

-9.79s (New PB)

AAA

AAAA: 4:49.29 (+13.19s | 4.4%)

100 Y Free

51.50

-0.39s (New PB)

AAA: 51.09 (+0.41s | 0.8%)

200 Y Back

2:12.14

AA: 2:07.09 (+5.05s | 3.8%)

200 Y IM

2:12.40

-3.08s (New PB)

AA: 2:09.79 (+2.61s | 2.0%)

100 Y Back

1:01.45

-6.04s (New PB)

A: 1:01.09 (+0.36s | 0.6%)

400 Y IM

4:49.61

-9.61s (New PB)

A: 4:49.49 (+0.12s | 0.0%)

50 Y Free

23.83

-0.57s (New PB)

AAA: 23.49 (+0.34s | 1.4%)

200 Y Free

1:49.87

-3.36s (New PB)

AAA

AAAA: 1:46.89 (+2.98s | 2.7%)

2025 Age Group Championships

07/11/2025

Santa Rosa

50 M Free

27.41

-0.46s (New PB)

AAA: 26.89 (+0.52s | 1.9%)

100 M Free

59.45

-0.48s (New PB)

AAA: 58.99 (+0.46s | 0.8%)

400 M Free

4:41.57

-0.99s (New PB)

AAA: 4:33.79 (+7.78s | 2.8%)

200 M Free

2:08.22

-2.22s (New PB)

AAA

AAAA: 2:02.99 (+5.23s | 4.1%)

NVST Last Chance AG Champs Summer Plunge 2025

06/21/2025

Napa

200 M Free

2:10.44

-1.54s (New PB)

AAA: 2:08.89 (+1.55s | 1.2%)

50 M Free

28.33

+0.46s

AA: 28.19 (+0.14s | 0.5%)

200 M IM

2:37.01

A: 2:36.69 (+0.32s | 0.2%)

100 M Back

1:15.96

-5.74s (New PB)

A: 1:11.69 (+4.27s | 5.6%)

100 M Free

59.93

-1.06s (New PB)

AAA: 58.99 (+0.94s | 1.6%)

400 M Free

4:42.56

-9.09s (New PB)

AAA: 4:33.79 (+8.77s | 3.1%)

2025 Peggy Ramirez Memorial Z3 Winter Champs

02/01/2025

Napa

100 Y Free

51.89

-1.08s (New PB)

AAA: 51.09 (+0.80s | 1.5%)

400 Y IM

4:59.22

-2.96s (New PB)

A: 4:49.49 (+9.73s | 3.3%)

50 Y Free

24.40

-0.12s (New PB)

AAA: 23.49 (+0.91s | 3.7%)

500 Y Free

5:12.27

-16.44s (New PB)

AAA: 5:03.09 (+9.18s | 2.9%)

50 Y Back

30.29

-1.16s (New PB)

100 Y IM

1:02.68

-31.91s (New PB)

Summer Age Group LCM Championships

07/12/2024

Concord

50 M Free

27.87

-2.03s (New PB)

AAA: 26.89 (+0.98s | 3.5%)

400 M Free

4:51.65

-13.94s (New PB)

AA: 4:46.19 (+5.46s | 1.9%)

100 M Free

1:00.99

-4.76s (New PB)

AAA: 58.99 (+2.00s | 3.3%)

200 M Free

2:11.98

-7.36s (New PB)

AAA: 2:08.89 (+3.09s | 2.3%)

2024 Redwood Empire Swim League Championship

07/05/2024

Oakland

500 Y Free

5:28.71

-9.86s (New PB)

AA: 5:16.89 (+11.82s | 3.6%)

400 Y IM

5:02.18

A: 4:49.49 (+12.69s | 4.2%)

200 Y Free

1:53.23

-9.58s (New PB)

AAA: 1:51.99 (+1.24s | 1.1%)

100 Y Free

52.97

-3.90s (New PB)

AAA: 51.09 (+1.88s | 3.5%)

200 Y IM

2:15.48

A: 2:15.39 (+0.09s | 0.1%)

50 Y Free

24.52

-1.88s (New PB)

AAA: 23.49 (+1.03s | 4.2%)

Long Course Far Westerns

07/27/2023

Concord

50 M Free

30.15

+0.25s

AAA: 29.39 (+0.76s | 2.5%)

200 M Free

2:23.15

+3.81s

AAA: 2:20.79 (+2.36s | 1.6%)

100 M Free

1:06.32

+0.57s

AAA: 1:04.49 (+1.83s | 2.8%)

Redwood Empire Swim League Championship

07/21/2023

Oakland

50 Y Free

26.40

-1.78s (New PB)

AAA: 25.79 (+0.61s | 2.3%)

50 Y Back

31.45

-2.59s (New PB)

AA: 31.19 (+0.26s | 0.8%)

100 Y Free

56.87

-3.70s (New PB)

AAA: 56.19 (+0.68s | 1.2%)

200 Y Free

2:02.81

-7.98s (New PB)

AAA: 2:02.59 (+0.22s | 0.2%)

500 Y Free

5:38.57

AAA: 5:29.99 (+8.58s | 2.5%)

100 Y Back

1:07.49

-5.14s (New PB)

AA: 1:05.99 (+1.50s | 2.2%)

2023 SBA Adam Szmidt Memorial Meet

07/07/2023

Hollister

50 M Free

29.90

-0.87s (New PB)

AAA: 29.39 (+0.51s | 1.7%)

100 M Free

1:05.85

+0.10s

AAA: 1:04.49 (+1.36s | 2.1%)

200 M Free

2:19.34

-2.18s (New PB)

AAA

AAAA: 2:14.39 (+4.95s | 3.6%)

NVST S LAST CHANCE JO SUMMER PLUNGE 2023

06/24/2023

Napa

50 M Free

30.77

AA: 30.69 (+0.08s | 0.3%)

100 M Free

1:05.75

AAA: 1:04.49 (+1.26s | 1.9%)

400 M Free

5:05.59

AAA: 4:59.49 (+6.10s | 2.0%)

100 M Back

1:21.70

AA: 1:18.09 (+3.61s | 4.4%)

200 M Free

2:21.52

AAA: 2:20.79 (+0.73s | 0.5%)

Z3 Championships 2023

01/21/2023

Novato

50 Y Free

28.18

-7.03s (New PB)

A: 28.09 (+0.09s | 0.3%)

100 Y Back

1:12.63

A: 1:09.29 (+3.34s | 4.6%)

50 Back

35.52

100 Back

37.11

1:12.63

100 Back

1:12.63

50 Y Back

34.04

-12.99s (New PB)

A: 32.69 (+1.35s | 4.0%)

100 Y Free

1:00.57

AA: 58.69 (+1.88s | 3.1%)

50 Free

29.29

100 Free

31.28

1:00.57

100 Free

1:00.57

200 Y Free

2:10.79

AA: 2:08.19 (+2.60s | 2.0%)

50 Free

29.52

100 Free

32.82

1:02.34

100 Free

1:02.34

150 Free

34.43

1:36.77

200 Free

34.02

2:10.79

100 Free

1:08.45

50 Y Breast

37.63

-11.09s (New PB)

A: 36.69 (+0.94s | 2.5%)

Vallejo Aquatic Club SC C B A+

02/08/2020

American Canyon

50 Y Fly

49.62

+2.84s

B: 46.49 (+3.13s | 6.3%)

100 Y Breast

1:44.43

BB: 1:42.29 (+2.14s | 2.0%)

50 Y Breast

48.72

-3.42s (New PB)

BB: 47.69 (+1.03s | 2.1%)

50 Y Free

35.21

-0.10s (New PB)

BB: 34.59 (+0.62s | 1.8%)

50 Y Back

47.03

BB: 42.89 (+4.14s | 8.8%)

RESL Championships

07/19/2019

NOVATO

25 Y Fly

20.41

-0.40s (New PB)

25 Y Breast

22.19

-2.90s (New PB)

25 Y Free

16.94

25 Y Back

23.01

100 Y IM

1:34.59

-12.80s (New PB)

BB: 1:29.69 (+4.90s | 5.2%)

50 Y Free

35.31

-4.99s (New PB)

BB: 34.59 (+0.72s | 2.0%)

WAVES AQUATICS FEBRUARY FROST C B A+

02/09/2019

Napa

100 Y IM

1:47.39

B: 1:39.69 (+7.70s | 7.2%)

50 Y Fly

46.78

B: 46.49 (+0.29s | 0.6%)

50 Y Free

40.30

B: 38.19 (+2.11s | 5.2%)

25 Y Fly

20.81

25 Y Breast

25.09

50 Y Breast

52.14

BB: 47.69 (+4.45s | 8.5%)

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	Far Western	Senior Open	Senior 2	Western Zone Sr.	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ	NATIONAL	U.S Olympic Team Trials
Free 50 M	27.41	26.29 (+1.12s \| 4.1%)	30.19	27.89	26.79 (+0.62s \| 2.3%)	25.89 (+1.52s \| 5.5%)	24.59 (+2.82s \| 10.3%)	24.59 (+2.82s \| 10.3%)	24.29 (+3.12s \| 11.4%)	23.39 (+4.02s \| 14.7%)	23.79 (+3.62s \| 13.2%)	N/A	22.79 (+4.62s \| 16.9%)
Free 100 M	59.45	57.19 (+2.26s \| 3.8%)	1:07.39	1:02.19	59.19 (+0.26s \| 0.4%)	56.09 (+3.36s \| 5.7%)	53.59 (+5.86s \| 9.9%)	53.59 (+5.86s \| 9.9%)	52.59 (+6.86s \| 11.5%)	50.99 (+8.46s \| 14.2%)	51.99 (+7.46s \| 12.5%)	N/A	49.99 (+9.46s \| 15.9%)
Free 200 M	2:08.22	2:05.69 (+2.53s \| 2.0%)	2:27.89	2:16.49	2:09.29	2:03.09 (+5.13s \| 4.0%)	1:57.79 (+10.43s \| 8.1%)	1:57.79 (+10.43s \| 8.1%)	1:55.49 (+12.73s \| 9.9%)	1:52.19 (+16.03s \| 12.5%)	1:54.09 (+14.13s \| 11.0%)	N/A	1:49.99 (+18.23s \| 14.2%)
Free 400 M	4:41.57	4:26.99 (+14.58s \| 5.2%)	5:12.79	4:48.69	4:34.19 (+7.38s \| 2.6%)	4:21.09 (+20.48s \| 7.3%)	4:09.99 (+31.58s \| 11.2%)	4:09.99 (+31.58s \| 11.2%)	4:05.29 (+36.28s \| 12.9%)	3:59.29 (+42.28s \| 15.0%)	4:02.79 (+38.78s \| 13.8%)	N/A	3:55.59 (+45.98s \| 16.3%)
Back 100 M	1:15.96	1:04.59 (+11.37s \| 15.0%)	1:15.49 (+0.47s \| 0.6%)	1:09.69 (+6.27s \| 8.3%)	1:05.89 (+10.07s \| 13.3%)	1:03.29 (+12.67s \| 16.7%)	1:00.59 (+15.37s \| 20.2%)	1:00.59 (+15.37s \| 20.2%)	58.89 (+17.07s \| 22.5%)	57.29 (+18.67s \| 24.6%)	58.19 (+17.77s \| 23.4%)	N/A	55.69 (+20.27s \| 26.7%)
IM 200 M	2:37.01	2:21.29 (+15.72s \| 10.0%)	2:45.49	2:32.79 (+4.22s \| 2.7%)	2:25.09 (+11.92s \| 7.6%)	2:18.39 (+18.62s \| 11.9%)	2:12.79 (+24.22s \| 15.4%)	2:12.79 (+24.22s \| 15.4%)	2:09.59 (+27.42s \| 17.5%)	2:05.79 (+31.22s \| 19.9%)	2:08.19 (+28.82s \| 18.4%)	N/A	2:03.49 (+33.52s \| 21.3%)