William Chen

Age: 10 years old
Age Category: 10 & under
Team: Rancho San Dieguito | San Diego-Imperial Swimming

Personal Best

Short course distance

Event

Time

Age

Date

Standard

Next Standard

Rancho San Dieguito

San Diego-Imperial Swimming

Western Zone

USA

Free 50 Y

39.02

09/20/2025

B: 38.19 (+0.83s | 2.1%)

1,000+

Free 100 Y

1:25.65

Analysis

09/20/2025

BB: 1:18.89 (+6.76s | 7.9%)

1,000+

50 Free

41.10

100 Free

44.55

1:25.65

100 Free

1:25.65

Free 200 Y

3:06.23

Analysis

02/21/2026

BB: 2:50.59 (+15.64s | 8.4%)

741

1,000+

50 Free

44.55

100 Free

47.85

1:32.40

100 Free

1:32.40

200 Free

1:33.82

3:06.23

100 Free

1:33.82

Back 50 Y

41.47

03/06/2026

A: 37.59 (+3.88s | 9.4%)

675

1,000+

Back 100 Y

1:33.99

Analysis

03/21/2026

BB: 1:30.09 (+3.90s | 4.1%)

737

1,000+

Breast 50 Y

54.63

06/07/2025

B: 53.39 (+1.24s | 2.3%)

1,000+

Breast 100 Y

1:56.97

Analysis

06/07/2025

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

1,000+

50 Breast

56.40

100 Breast

1:00.57

1:56.97

100 Breast

1:56.97

Fly 50 Y

51.82

06/07/2025

B: 46.49 (+5.33s | 10.3%)

1,000+

Fly 100 Y

1:54.91

Analysis

02/21/2026

B: 1:53.49 (+1.42s | 1.2%)

641

1,000+

IM 100 Y

1:38.42

Analysis

06/28/2025

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

1,000+

IM 200 Y

3:46.50

Analysis

03/21/2026

B: 3:38.59 (+7.91s | 3.5%)

683

1,000+

Long course distance

Event	Time		Age	Date	Standard	Next Standard	Rancho San Dieguito	San Diego-Imperial Swimming	Western Zone	USA
Free 50 M	45.76		10	07/11/2025		B: 43.89 (+1.87s \| 4.1%)	4	31	633	1,000+

Free 100 M	1:43.45	Analysis	10	07/11/2025		B: 1:40.99 (+2.46s \| 2.4%)	4	22	555	1,000+

Back 50 M	54.13		10	07/11/2025	B	BB: 49.29 (+4.84s \| 8.9%)	4	25	608	1,000+

Back 100 M	1:46.97	Analysis	10	07/11/2025	B	BB: 1:44.49 (+2.48s \| 2.3%)	2	15	286	504

Breast 50 M	1:01.98		10	07/11/2025		B: 1:00.89 (+1.09s \| 1.8%)	3	18	552	979

Breast 100 M	2:14.73	Analysis	10	07/11/2025		B: 2:12.89 (+1.84s \| 1.4%)	2	15	439	751

Fly 50 M	1:00.55		10	07/11/2025		B: 52.29 (+8.26s \| 13.6%)	3	22	530	974

Fly 100 M	2:16.57	Analysis	10	07/11/2025		B: 2:09.49 (+7.08s \| 5.2%)	2	9	224	373

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	39.02	22.19 (+16.83s \| 43.1%)	21.29 (+17.73s \| 45.4%)	21.29 (+17.73s \| 45.4%)	20.59 (+18.43s \| 47.2%)	20.09 (+18.93s \| 48.5%)	20.39 (+18.63s \| 47.7%)	30.49 (+8.53s \| 21.9%)
Free 100 Y	1:25.65	48.19 (+37.46s \| 43.7%)	46.39 (+39.26s \| 45.8%)	46.39 (+39.26s \| 45.8%)	45.09 (+40.56s \| 47.4%)	43.49 (+42.16s \| 49.2%)	44.39 (+41.26s \| 48.2%)	1:07.19 (+18.46s \| 21.6%)
Free 200 Y	3:06.23	1:45.79 (+80.44s \| 43.2%)	1:41.59 (+84.64s \| 45.4%)	1:41.59 (+84.64s \| 45.4%)	1:38.79 (+87.44s \| 47.0%)	1:36.49 (+89.74s \| 48.2%)	1:38.09 (+88.14s \| 47.3%)	2:24.99 (+41.24s \| 22.1%)
Back 50 Y	41.47	N/A	N/A	N/A	N/A	N/A	N/A	36.29 (+5.18s \| 12.5%)
Back 100 Y	1:33.99	53.89 (+40.10s \| 42.7%)	51.49 (+42.50s \| 45.2%)	51.49 (+42.50s \| 45.2%)	49.39 (+44.60s \| 47.5%)	47.59 (+46.40s \| 49.4%)	48.89 (+45.10s \| 48.0%)	1:16.59 (+17.40s \| 18.5%)
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	1:54.91	52.89 (+62.02s \| 54.0%)	50.59 (+64.32s \| 56.0%)	50.59 (+64.32s \| 56.0%)	48.99 (+65.92s \| 57.4%)	47.79 (+67.12s \| 58.4%)	48.39 (+66.52s \| 57.9%)	1:19.89 (+35.02s \| 30.5%)
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%)
IM 200 Y	3:46.50	1:58.19 (+108.31s \| 47.8%)	1:53.89 (+112.61s \| 49.7%)	1:53.89 (+112.61s \| 49.7%)	1:50.09 (+116.41s \| 51.4%)	1:46.39 (+120.11s \| 53.0%)	1:48.89 (+117.61s \| 51.9%)	2:46.19 (+60.31s \| 26.6%)

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.

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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

2026 SI CAST All Ages NTS Meet South

03/21/2026

La Mesa

50 Y Fly

58.21

+6.39s

B: 46.49 (+11.72s | 20.1%)

50 Y Breast

59.21

+4.58s

B: 53.39 (+5.82s | 9.8%)

200 Y Free

3:09.76

+3.53s

B: 3:09.49 (+0.27s | 0.1%)

50 Y Back

42.43

+0.96s

A: 37.59 (+4.84s | 11.4%)

100 Y IM

1:45.75

+7.33s

B: 1:39.69 (+6.06s | 5.7%)

200 Y IM

3:46.50

-1.04s (New PB)

B: 3:38.59 (+7.91s | 3.5%)

100 Y Back

1:33.99

-2.49s (New PB)

BB: 1:30.09 (+3.90s | 4.1%)

100 Y Free

1:28.79

+3.14s

B: 1:27.99 (+0.80s | 0.9%)

2026 SI 14U AGE GRP CHAMPIONSHIPS

03/06/2026

El Cajon

50 Y Back

41.47

-1.59s (New PB)

A: 37.59 (+3.88s | 9.4%)

2026 SI JBST Age Group Champs Max

02/21/2026

La Jolla

50 Y Breast

55.46

+0.83s

B: 53.39 (+2.07s | 3.7%)

100 Y Back

1:36.48

-0.45s (New PB)

BB: 1:30.09 (+6.39s | 6.6%)

50 Back

47.62

100 Back

48.86

1:36.48

100 Back

1:36.48

200 Y Free

3:06.23

-19.19s (New PB)

BB: 2:50.59 (+15.64s | 8.4%)

50 Free

44.55

100 Free

47.85

1:32.40

100 Free

1:32.40

200 Free

1:33.82

3:06.23

100 Free

1:33.82

100 Y IM

1:43.17

+4.75s

B: 1:39.69 (+3.48s | 3.4%)

100 Y Breast

1:58.86

+1.89s

B: 1:54.09 (+4.77s | 4.0%)

50 Breast

59.40

100 Breast

59.46

1:58.86

100 Breast

1:58.86

100 Y Fly

1:54.91

-16.19s (New PB)

B: 1:53.49 (+1.42s | 1.2%)

50 Y Back

43.06

-0.69s (New PB)

BB: 42.89 (+0.17s | 0.4%)

100 Y Free

1:25.66

+0.01s

BB: 1:18.89 (+6.77s | 7.9%)

50 Y Fly

52.52

+0.70s

B: 46.49 (+6.03s | 11.5%)

SI 2025 RSD All Ages WAG Max

12/05/2025

Solana Beach

100 Y Back

1:36.93

-0.89s (New PB)

BB: 1:30.09 (+6.84s | 7.1%)

50 Back

48.02

100 Back

48.91

1:36.93

100 Back

1:36.93

100 Y Free

1:26.93

+1.28s

BB: 1:18.89 (+8.04s | 9.2%)

50 Free

41.13

100 Free

45.80

1:26.93

100 Free

1:26.93

50 Y Back

43.75

-3.51s (New PB)

BB: 42.89 (+0.86s | 2.0%)

100 Y IM

1:41.80

+3.38s

B: 1:39.69 (+2.11s | 2.1%)

50 IM

49.28

100 IM

52.52

1:41.80

100 IM

1:41.80

2025 SI SDSA All Ages NTS Meet

11/08/2025

Coronado

50 Y Back

48.66

+1.40s

B: 48.29 (+0.37s | 0.8%)

200 Y IM

3:47.54

B: 3:38.59 (+8.95s | 3.9%)

50 Fly

1:00.16

100 Back

56.23

1:56.39

100 IM

1:56.39

150 Breast

1:02.06

2:58.45

200 Free

49.09

3:47.54

100 IM

1:51.15

100 Y Free

1:30.73

+5.08s

B: 1:27.99 (+2.74s | 3.0%)

50 Free

43.34

100 Free

47.39

1:30.73

100 Free

1:30.73

100 Y Fly

2:11.98

+0.88s

B: 1:53.49 (+18.49s | 14.0%)

50 Fly

57.72

100 Fly

1:14.26

2:11.98

100 Fly

2:11.98

2025 SI PS Freestyle Festival Sat

09/20/2025

Poway

100 Y Free

1:25.65

-3.31s (New PB)

BB: 1:18.89 (+6.76s | 7.9%)

50 Free

41.10

100 Free

44.55

1:25.65

100 Free

1:25.65

50 Y Free

39.02

-2.53s (New PB)

B: 38.19 (+0.83s | 2.1%)

2025 SI SDSA All Ages NTS Meet

07/11/2025

Coronado

50 M Back

54.13

BB: 49.29 (+4.84s | 8.9%)

50 M Fly

1:00.55

B: 52.29 (+8.26s | 13.6%)

50 M Breast

1:01.98

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

100 M Fly

2:16.57

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

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 Free

45.76

B: 43.89 (+1.87s | 4.1%)

100 M Breast

2:14.73

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

2025 SI FAST RISING STARS 2

06/28/2025

Fallbrook

100 Y Free

1:32.45

+3.49s

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

100 Y IM

1:38.42

-10.85s (New PB)

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

50 Y Breast

55.56

+0.93s

B: 53.39 (+2.17s | 3.9%)

50 Y Fly

52.89

+1.07s

B: 46.49 (+6.40s | 12.1%)

2025 SI JBST Splash Dash Max

06/07/2025

La Jolla

50 Y Free

41.55

-14.78s (New PB)

B: 38.19 (+3.36s | 8.1%)

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

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 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

50 Y Breast

54.63

-2.97s (New PB)

B: 53.39 (+1.24s | 2.3%)

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

2025 SI JBST NTS All Ages

03/15/2025

La Jolla

50 Y Back

50.18

+1.57s

B: 48.29 (+1.89s | 3.8%)

100 Y Fly

2:11.10

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

50 Y Breast

1:00.52

+2.92s

B: 53.39 (+7.13s | 11.8%)

100 Y Back

1:41.50

-6.38s (New PB)

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

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%)

200 Y Free

3:25.42

-24.80s (New PB)

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

100 Y Free

1:36.20

-7.36s (New PB)

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

2025 SI SBA All Ages NTS Meet Feb 7 9

02/07/2025

Chula Vista

200 Y Free

3:50.22

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

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

50 Y Fly

1:00.63

+1.20s

B: 46.49 (+14.14s | 23.3%)

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

2025 SI RSD All Ages NTS

01/18/2025

Solana Beach

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

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 Back

1:47.88

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

50 Back

52.44

100 Back

55.44

1:47.88

100 Back

1:47.88

50 Y Back

48.61

-4.00s (New PB)

B: 48.29 (+0.32s | 0.7%)

50 Y Breast

57.60

-2.74s (New PB)

B: 53.39 (+4.21s | 7.3%)

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

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

11/02/2024

Chula Vista

50 Y Breast

1:02.21

+1.87s

B: 53.39 (+8.82s | 14.2%)

50 Y Back

52.61

-6.31s (New PB)

B: 48.29 (+4.32s | 8.2%)

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 Fly

59.43

-4.68s (New PB)

B: 46.49 (+12.94s | 21.8%)

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

2024 SI SBA All Ages B C Meet Oct 12 13

10/12/2024

Chula Vista

100 Y Free

1:47.36

-9.73s (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

50 Y Fly

1:04.11

B: 46.49 (+17.62s | 27.5%)

50 Y Breast

1:00.34

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

50 Y Back

58.92

B: 48.29 (+10.63s | 18.0%)

100 Y IM

2:03.85

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

2024 SI PS Freestyle Festival Sun

09/22/2024

Poway

100 Y Free

1:57.09

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

B: 38.19 (+18.14s | 32.2%)

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.