William Chen

Age: 10 years old
Age Category: 10 & under
Team: Rancho San Dieguito | San Diego-Imperial Swimming
Participation: 23 meets 84 events

Personal Best

Long course distance

Event	Time	Age	Date	Standard	Next Standard	San Diego-Imperial Swimming	Rancho San Dieguito
Free 50 M	45.76	9	07/11/2025		B: 43.89 (+1.87s \| 4.1%)	56	6

Free 100 M	1:43.45	9	07/11/2025		B: 1:40.99 (+2.46s \| 2.4%)	43	6

Back 50 M	54.13	9	07/11/2025	B	BB: 49.29 (+4.84s \| 8.9%)	50	7

Back 100 M	1:46.97	9	07/11/2025	B	BB: 1:44.49 (+2.48s \| 2.3%)	27	5

Breast 50 M	1:01.98	9	07/11/2025		B: 1:00.89 (+1.09s \| 1.8%)	34	6

Breast 100 M	2:14.73	9	07/11/2025		B: 2:12.89 (+1.84s \| 1.4%)	30	5

Fly 50 M	1:00.55	9	07/11/2025		B: 52.29 (+8.26s \| 13.6%)	37	5

Fly 100 M	2:16.57	9	07/11/2025		B: 2:09.49 (+7.08s \| 5.2%)	15	3

Short course distance

Event

Time

Age

Date

Standard

Next Standard

San Diego-Imperial Swimming

Rancho San Dieguito

Free 25 Y

23.51

03/16/2024

120

Free 50 Y

41.55

06/07/2025

B: 38.19 (+3.36s | 8.1%)

Free 100 Y

1:28.96

06/07/2025

B: 1:27.99 (+0.97s | 1.1%)

50 Free

41.39

100 Free

47.57

1:28.96

100 Free

1:28.96

Free 200 Y

3:25.42

03/15/2025

B: 3:09.49 (+15.93s | 7.8%)

Back 25 Y

32.53

02/09/2024

125

Back 50 Y

47.26

06/07/2025

BB: 42.89 (+4.37s | 9.2%)

Back 100 Y

1:37.82

06/07/2025

BB: 1:30.09 (+7.73s | 7.9%)

50 Back

46.47

100 Back

51.35

1:37.82

100 Back

1:37.82

Breast 25 Y

33.14

03/16/2024

Breast 50 Y

54.63

06/07/2025

B: 53.39 (+1.24s | 2.3%)

Breast 100 Y

1:56.97

06/07/2025

B: 1:54.09 (+2.88s | 2.5%)

50 Breast

56.40

100 Breast

1:00.57

1:56.97

100 Breast

1:56.97

Fly 25 Y

33.92

03/16/2024

Fly 50 Y

51.82

06/07/2025

B: 46.49 (+5.33s | 10.3%)

Fly 100 Y

2:11.10

03/15/2025

B: 1:53.49 (+17.61s | 13.4%)

IM 100 Y

1:38.42

06/28/2025

BB: 1:29.69 (+8.73s | 8.9%)

Above are the fastest times that William Chen has achieved in his swimming career. For each event, you can find William's best time, the corresponding time standard, as well as how much faster William needs to be to reach the next level. The last columns provide William rankings at the team and LSC levels. These rankings are based on the William'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	41.55	22.19 (+19.36s \| 46.6%)	21.29 (+20.26s \| 48.8%)	21.29 (+20.26s \| 48.8%)	20.59 (+20.96s \| 50.4%)	20.09 (+21.46s \| 51.6%)	20.39 (+21.16s \| 50.9%)	30.49 (+11.06s \| 26.6%)
Free 100 Y	1:28.96	48.19 (+40.77s \| 45.8%)	46.39 (+42.57s \| 47.9%)	46.39 (+42.57s \| 47.9%)	45.09 (+43.87s \| 49.3%)	43.49 (+45.47s \| 51.1%)	44.39 (+44.57s \| 50.1%)	1:07.19 (+21.77s \| 24.5%)
Free 200 Y	3:25.42	1:45.79 (+99.63s \| 48.5%)	1:41.59 (+103.83s \| 50.5%)	1:41.59 (+103.83s \| 50.5%)	1:38.79 (+106.63s \| 51.9%)	1:36.49 (+108.93s \| 53.0%)	1:38.09 (+107.33s \| 52.2%)	2:24.99 (+60.43s \| 29.4%)
Back 50 Y	47.26	N/A	N/A	N/A	N/A	N/A	N/A	36.29 (+10.97s \| 23.2%)
Back 100 Y	1:37.82	53.89 (+43.93s \| 44.9%)	51.49 (+46.33s \| 47.4%)	51.49 (+46.33s \| 47.4%)	49.39 (+48.43s \| 49.5%)	47.59 (+50.23s \| 51.3%)	48.89 (+48.93s \| 50.0%)	1:16.59 (+21.23s \| 21.7%)
Breast 50 Y	54.63	N/A	N/A	N/A	N/A	N/A	N/A	40.29 (+14.34s \| 26.2%)
Breast 100 Y	1:56.97	1:00.89 (+56.08s \| 47.9%)	57.99 (+58.98s \| 50.4%)	57.99 (+58.98s \| 50.4%)	55.89 (+61.08s \| 52.2%)	54.19 (+62.78s \| 53.7%)	55.29 (+61.68s \| 52.7%)	1:26.29 (+30.68s \| 26.2%)
Fly 50 Y	51.82	N/A	N/A	N/A	N/A	N/A	N/A	34.69 (+17.13s \| 33.1%)
Fly 100 Y	2:11.10	52.89 (+78.21s \| 59.7%)	50.59 (+80.51s \| 61.4%)	50.59 (+80.51s \| 61.4%)	48.99 (+82.11s \| 62.6%)	47.79 (+83.31s \| 63.5%)	48.39 (+82.71s \| 63.1%)	1:19.89 (+51.21s \| 39.1%)
IM 100 Y	1:38.42	N/A	N/A	N/A	N/A	N/A	N/A	1:16.99 (+21.43s \| 21.8%)

Long Course Distance

Event	Best Time	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ	SouthWestern Age Group Regional
Free 50 M	45.76	25.89 (+19.87s \| 43.4%)	24.59 (+21.17s \| 46.3%)	24.59 (+21.17s \| 46.3%)	24.29 (+21.47s \| 46.9%)	23.39 (+22.37s \| 48.9%)	23.79 (+21.97s \| 48.0%)	34.59 (+11.17s \| 24.4%)
Free 100 M	1:43.45	56.09 (+47.36s \| 45.8%)	53.59 (+49.86s \| 48.2%)	53.59 (+49.86s \| 48.2%)	52.59 (+50.86s \| 49.2%)	50.99 (+52.46s \| 50.7%)	51.99 (+51.46s \| 49.7%)	1:16.89 (+26.56s \| 25.7%)
Back 50 M	54.13	N/A	N/A	N/A	N/A	N/A	N/A	41.59 (+12.54s \| 23.2%)
Back 100 M	1:46.97	1:03.29 (+43.68s \| 40.8%)	1:00.59 (+46.38s \| 43.4%)	1:00.59 (+46.38s \| 43.4%)	58.89 (+48.08s \| 44.9%)	57.29 (+49.68s \| 46.4%)	58.19 (+48.78s \| 45.6%)	1:27.69 (+19.28s \| 18.0%)
Breast 50 M	1:01.98	N/A	N/A	N/A	N/A	N/A	N/A	46.29 (+15.69s \| 25.3%)
Breast 100 M	2:14.73	1:11.29 (+63.44s \| 47.1%)	1:08.19 (+66.54s \| 49.4%)	1:08.19 (+66.54s \| 49.4%)	1:06.59 (+68.14s \| 50.6%)	1:04.09 (+70.64s \| 52.4%)	1:05.29 (+69.44s \| 51.5%)	1:40.19 (+34.54s \| 25.6%)
Fly 50 M	1:00.55	N/A	N/A	N/A	N/A	N/A	N/A	39.19 (+21.36s \| 35.3%)
Fly 100 M	2:16.57	1:00.89 (+75.68s \| 55.4%)	57.99 (+78.58s \| 57.5%)	57.99 (+78.58s \| 57.5%)	57.09 (+79.48s \| 58.2%)	55.09 (+81.48s \| 59.7%)	55.99 (+80.58s \| 59.0%)	1:30.59 (+45.98s \| 33.7%)

Progression

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

Select the distance and stroke

Compare with another swimmer

View this profile

Meets

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

Event

Time

Progress

Standard

Next Standard

Age

Heat

Lane

Ranking

2025 SI SDSA All Ages NTS Meet

07/11/2025

Brian Bent Memorial Aquatic Complex, 818 6th St, Coronado CA 92118

50 M Back

54.13

-10.90s (New PB)

BB: 49.29 (+4.84s | 8.9%)

50 M Fly

1:00.55

-21.36s (New PB)

B: 52.29 (+8.26s | 13.6%)

100 M Fly

2:16.57

B: 2:09.49 (+7.08s | 5.2%)

50 M Free

45.76

B: 43.89 (+1.87s | 4.1%)

100 M Free

1:43.45

B: 1:40.99 (+2.46s | 2.4%)

100 M Back

1:46.97

BB: 1:44.49 (+2.48s | 2.3%)

50 M Breast

1:01.98

B: 1:00.89 (+1.09s | 1.8%)

100 M Breast

2:14.73

-20.66s (New PB)

B: 2:12.89 (+1.84s | 1.4%)

2025 SI FAST RISING STARS 2

06/28/2025

Fallbrook High School, , Fallbrook, CA 92028, USA

50 Y Fly

52.89

+1.07s

B: 46.49 (+6.40s | 12.1%)

50 Y Breast

55.56

+0.93s

B: 53.39 (+2.17s | 3.9%)

100 Y IM

1:38.42

-10.85s (New PB)

BB: 1:29.69 (+8.73s | 8.9%)

100 Y Free

1:32.45

+3.49s

B: 1:27.99 (+4.46s | 4.8%)

2025 SI JBST Splash Dash Max

06/07/2025

50 Y Breast

54.63

-2.97s (New PB)

B: 53.39 (+1.24s | 2.3%)

50 Y Free

41.55

-14.03s (New PB)

B: 38.19 (+3.36s | 8.1%)

100 Y Back

1:37.82

-3.68s (New PB)

BB: 1:30.09 (+7.73s | 7.9%)

50 Back

46.47

100 Back

51.35

1:37.82

100 Back

1:37.82

100 Y Breast

1:56.97

-3.03s (New PB)

B: 1:54.09 (+2.88s | 2.5%)

50 Breast

56.40

100 Breast

1:00.57

1:56.97

100 Breast

1:56.97

50 Y Back

47.26

-1.35s (New PB)

BB: 42.89 (+4.37s | 9.2%)

50 Y Fly

51.82

-7.61s (New PB)

B: 46.49 (+5.33s | 10.3%)

100 Y Free

1:28.96

-7.24s (New PB)

B: 1:27.99 (+0.97s | 1.1%)

50 Free

41.39

100 Free

47.57

1:28.96

100 Free

1:28.96

2025 SI JBST NTS All Ages

03/15/2025

Lawrence Family Jewish Community Center, 4126 Executive Drive, La Jolla, CA. 92037

100 Y Free

1:36.20

-7.36s (New PB)

B: 1:27.99 (+8.21s | 8.5%)

50 Y Back

50.18

+1.57s

B: 48.29 (+1.89s | 3.8%)

100 Y Back

1:41.50

-6.38s (New PB)

B: 1:40.69 (+0.81s | 0.8%)

100 Y Fly

2:11.10

B: 1:53.49 (+17.61s | 13.4%)

200 Y Free

3:25.42

-24.80s (New PB)

B: 3:09.49 (+15.93s | 7.8%)

100 Y IM

1:49.27

-2.21s (New PB)

B: 1:39.69 (+9.58s | 8.8%)

100 Y Breast

2:00.00

-2.42s (New PB)

B: 1:54.09 (+5.91s | 4.9%)

50 Y Breast

1:00.52

+2.92s

B: 53.39 (+7.13s | 11.8%)

2025 SI SBA All Ages NTS Meet Feb 7 9

02/07/2025

Mater Dei Dr , Chula Vista CA 91913

100 Y Breast

2:10.35

+7.93s

B: 1:54.09 (+16.26s | 12.5%)

50 Breast

58.62

100 Breast

1:11.73

2:10.35

100 Breast

2:10.35

100 Y IM

1:51.48

-2.16s (New PB)

B: 1:39.69 (+11.79s | 10.6%)

50 IM

53.04

100 IM

58.44

1:51.48

100 IM

1:51.48

200 Y Free

3:50.22

-14.76s (New PB)

B: 3:09.49 (+40.73s | 17.7%)

100 Free

1:50.35

100 Free

1:50.35

150 Free

59.31

2:49.66

200 Free

1:00.56

3:50.22

100 Free

1:59.87

50 Y Fly

1:00.63

+1.20s

B: 46.49 (+14.14s | 23.3%)

2025 SI RSD All Ages NTS

01/18/2025

Pardee Aquatic Center Solana Beach

50 Y Back

48.61

-4.00s (New PB)

B: 48.29 (+0.32s | 0.7%)

50 Y Fly

1:07.50

+8.07s

B: 46.49 (+21.01s | 31.1%)

100 Y Breast

2:02.42

-6.41s (New PB)

B: 1:54.09 (+8.33s | 6.8%)

100 Y IM

1:53.64

-7.39s (New PB)

B: 1:39.69 (+13.95s | 12.3%)

50 IM

53.28

100 IM

1:00.36

1:53.64

100 IM

1:53.64

50 Y Breast

57.60

-2.74s (New PB)

B: 53.39 (+4.21s | 7.3%)

100 Y Free

1:43.56

-3.80s (New PB)

B: 1:27.99 (+15.57s | 15.0%)

50 Free

49.12

100 Free

54.44

1:43.56

100 Free

1:43.56

100 Y Back

1:47.88

-20.91s (New PB)

B: 1:40.69 (+7.19s | 6.7%)

50 Back

52.44

100 Back

55.44

1:47.88

100 Back

1:47.88

2024 SI SBA BC All Ages Nov

11/02/2024

Mater Dei Dr , Chula Vista CA 91913

50 Y Fly

59.43

+0.00s

B: 46.49 (+12.94s | 21.8%)

100 Y IM

2:01.03

+0.00s

B: 1:39.69 (+21.34s | 17.6%)

50 IM

56.99

100 IM

1:04.04

2:01.03

100 IM

2:01.03

50 Y Breast

1:02.21

+1.87s

B: 53.39 (+8.82s | 14.2%)

100 Y Free

1:48.05

+0.69s

B: 1:27.99 (+20.06s | 18.6%)

50 Free

51.86

100 Free

56.19

1:48.05

100 Free

1:48.05

50 Y Back

52.61

-6.31s (New PB)

B: 48.29 (+4.32s | 8.2%)

2024 SI SBA All Ages B C BB Max Meet Nov 2 3

11/02/2024

Mater Dei Dr , Chula Vista CA 91913

100 Y Free

1:48.05

+0.69s

B: 1:27.99 (+20.06s | 18.6%)

50 Free

51.86

100 Free

56.19

1:48.05

100 Free

1:48.05

50 Y Fly

59.43

-4.68s (New PB)

B: 46.49 (+12.94s | 21.8%)

50 Y Back

52.61

+0.00s

B: 48.29 (+4.32s | 8.2%)

50 Y Breast

1:02.21

+1.87s

B: 53.39 (+8.82s | 14.2%)

100 Y IM

2:01.03

-2.82s (New PB)

B: 1:39.69 (+21.34s | 17.6%)

50 IM

56.99

100 IM

1:04.04

2:01.03

100 IM

2:01.03

2004 SI SBA BC ALL AGES

10/12/2024

Mater Dei Dr , Chula Vista CA 91913

100 Y IM

2:03.85

+0.00s

B: 1:39.69 (+24.16s | 19.5%)

50 IM

59.65

100 IM

1:04.20

2:03.85

100 IM

2:03.85

50 Y Fly

1:04.11

+0.00s

B: 46.49 (+17.62s | 27.5%)

50 Y Back

58.92

-3.49s (New PB)

B: 48.29 (+10.63s | 18.0%)

100 Y Free

1:47.36

+0.00s

B: 1:27.99 (+19.37s | 18.0%)

50 Free

47.86

100 Free

59.50

1:47.36

100 Free

1:47.36

50 Y Breast

1:00.34

+0.00s

B: 53.39 (+6.95s | 11.5%)

100 Y Breast

2:08.83

+0.00s

B: 1:54.09 (+14.74s | 11.4%)

50 Breast

1:00.37

100 Breast

1:08.46

2:08.83

100 Breast

2:08.83

2024 SI SBA All Ages B C Meet Oct 12 13

10/12/2024

Mater Dei Dr , Chula Vista CA 91913

50 Y Back

58.92

+0.00s

B: 48.29 (+10.63s | 18.0%)

100 Y IM

2:03.85

-8.39s (New PB)

B: 1:39.69 (+24.16s | 19.5%)

50 IM

59.65

100 IM

1:04.20

2:03.85

100 IM

2:03.85

50 Y Fly

1:04.11

-3.02s (New PB)

B: 46.49 (+17.62s | 27.5%)

50 Y Breast

1:00.34

-2.53s (New PB)

B: 53.39 (+6.95s | 11.5%)

100 Y Breast

2:08.83

B: 1:54.09 (+14.74s | 11.4%)

50 Breast

1:00.37

100 Breast

1:08.46

2:08.83

100 Breast

2:08.83

100 Y Free

1:47.36

-7.87s (New PB)

B: 1:27.99 (+19.37s | 18.0%)

50 Free

47.86

100 Free

59.50

1:47.36

100 Free

1:47.36

2024 SI PS Freestyle Festival Sunday

09/22/2024

Poway Community Swim Center

50 Y Free

56.33

+0.75s

B: 38.19 (+18.14s | 32.2%)

100 Y Free

1:57.09

+1.86s

B: 1:27.99 (+29.10s | 24.9%)

50 Free

52.81

100 Free

1:04.28

1:57.09

100 Free

1:57.09

2024 SI PS Freestyle Festival Sun

09/22/2024

Poway Community Swim Center

100 Y Free

1:57.09

+1.86s

B: 1:27.99 (+29.10s | 24.9%)

50 Free

52.81

100 Free

1:04.28

1:57.09

100 Free

1:57.09

50 Y Free

56.33

+0.75s

B: 38.19 (+18.14s | 32.2%)

2024 SI WIND ALL AGES NTS WRAP UP MEET

08/10/2024

Coggan Family Aquatic Complex, 800 Nautilus St, La Jolla 92037

50 Y Back

1:02.41

B: 48.29 (+14.12s | 22.6%)

100 Y Back

2:08.79

-2.29s (New PB)

B: 1:40.69 (+28.10s | 21.8%)

50 Y Breast

1:02.87

B: 53.39 (+9.48s | 15.1%)

50 Y Fly

1:07.13

B: 46.49 (+20.64s | 30.7%)

50 Y Free

55.58

B: 38.19 (+17.39s | 31.3%)

100 Y Free

1:55.23

B: 1:27.99 (+27.24s | 23.6%)

100 Y IM

2:12.24

B: 1:39.69 (+32.55s | 24.6%)

2024 SI RSD LAST CHANCE MEET

07/20/2024

Pardee Aquatic Center Solana Beach

100 Y Back

2:11.08

B: 1:40.69 (+30.39s | 23.2%)

50 Back

1:05.04

100 Back

1:06.04

2:11.08

100 Back

2:11.08

200 Y Free

4:04.98

B: 3:09.49 (+55.49s | 22.7%)

50 Free

55.48

100 Free

1:03.15

1:58.63

100 Free

1:58.63

200 Free

2:06.35

4:04.98

100 Free

2:06.35

2024 SI JBST Splash & Dash Max Meet

06/08/2024

Lawrence Family Jewish Community Center, 4126 Executive Drive, La Jolla, CA. 92037

50 M Fly

1:21.91

B: 52.29 (+29.62s | 36.2%)

50 M Back

1:05.03

B: 55.39 (+9.64s | 14.8%)

100 M Breast

2:35.39

B: 2:12.89 (+22.50s | 14.5%)

2024 SI HSA All Ages NTS Meet

03/16/2024

Santana High School,9915 Magnolia Ave, Santee, CA 92071

25 Y Fly

33.92

-2.33s (New PB)

25 Y Back

32.73

+0.20s

25 Y Free

23.51

-3.31s (New PB)

25 Y Breast

33.14

-5.37s (New PB)

2024 SI SBA All Ages NTS Meet

02/09/2024

Mater Dei High School, 1615 Mater Dei Drive, Chula Vista, CA 91913

25 Y Back

32.53

25 Y Free

26.82

25 Y Breast

38.51

25 Y Fly

36.25

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.