William Chang

Age: 11 years old
Age Category: 11-12
Team: Sunnyvale Swim Club | Pacific Swimming

Personal Best

Short course distance

Event

Time

Age

Date

Standard

Next Standard

Sunnyvale Swim Club

Pacific Swimming

Western Zone

USA

Free 50 Y

39.33

09/28/2025

B: 32.79 (+6.54s | 16.6%)

919

1,000+

Free 100 Y

1:17.12

Analysis

03/28/2026

B: 1:11.49 (+5.63s | 7.3%)

538

1,000+

50 Free

37.07

100 Free

40.05

1:17.12

100 Free

1:17.12

Breast 50 Y

46.64

10/25/2025

B: 43.49 (+3.15s | 6.8%)

516

1,000+

Breast 100 Y

1:36.89

Analysis

03/28/2026

B: 1:32.59 (+4.30s | 4.4%)

367

1,000+

50 Breast

45.22

100 Breast

51.67

1:36.89

100 Breast

1:36.89

Breast 200 Y

3:30.16

Analysis

02/07/2026

B: 3:16.39 (+13.77s | 6.6%)

206

656

1,000+

50 Breast

49.25

100 Breast

52.66

1:41.91

100 Breast

1:41.91

150 Breast

55.64

2:37.55

200 Breast

52.61

3:30.16

100 Breast

1:48.25

Fly 50 Y

40.87

03/28/2026

B: 37.09 (+3.78s | 9.2%)

452

1,000+

Fly 100 Y

1:53.96

Analysis

10/11/2025

B: 1:22.89 (+31.07s | 27.3%)

432

1,000+

IM 100 Y

1:33.80

Analysis

10/25/2025

B: 1:21.89 (+11.91s | 12.7%)

609

1,000+

Long course distance

Event	Time		Age	Date	Next Standard	Sunnyvale Swim Club	Pacific Swimming	Western Zone	USA
Free 50 M	47.59		11	06/27/2025	B: 37.39 (+10.20s \| 21.4%)	23	545	1,000+	1,000+

Free 100 M	1:48.53	Analysis	11	06/27/2025	B: 1:22.09 (+26.44s \| 24.4%)	25	527	1,000+	1,000+

Breast 50 M	58.92		11	06/27/2025	B: 49.79 (+9.13s \| 15.5%)	18	415	1,000+	1,000+

Breast 100 M	2:09.01	Analysis	11	06/27/2025	B: 1:47.79 (+21.22s \| 16.4%)	19	358	1,000+	1,000+

Fly 50 M	56.01		11	06/27/2025	B: 41.99 (+14.02s \| 25.0%)	17	366	1,000+	1,000+

Fly 100 M	2:11.97	Analysis	11	06/27/2025	B: 1:35.09 (+36.88s \| 27.9%)	6	192	765	1,000+

Above are the fastest times that William Chang 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	Age Group Championship	Far Western	Senior Open	Senior 2	Western Zone Sr.	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ	NATIONAL	SouthWestern Age Group Regional
Free 50 Y	39.33	29.79 (+9.54s \| 24.3%)	26.19 (+13.14s \| 33.4%)	26.89 (+12.44s \| 31.6%)	24.79 (+14.54s \| 37.0%)	23.29 (+16.04s \| 40.8%)	22.19 (+17.14s \| 43.6%)	21.29 (+18.04s \| 45.9%)	21.29 (+18.04s \| 45.9%)	20.59 (+18.74s \| 47.6%)	20.09 (+19.24s \| 48.9%)	20.39 (+18.94s \| 48.2%)	N/A	29.59 (+9.74s \| 24.8%)
Free 100 Y	1:17.12	1:05.19 (+11.93s \| 15.5%)	57.29 (+19.83s \| 25.7%)	58.69 (+18.43s \| 23.9%)	54.19 (+22.93s \| 29.7%)	51.19 (+25.93s \| 33.6%)	48.19 (+28.93s \| 37.5%)	46.39 (+30.73s \| 39.8%)	46.39 (+30.73s \| 39.8%)	45.09 (+32.03s \| 41.5%)	43.49 (+33.63s \| 43.6%)	44.39 (+32.73s \| 42.4%)	N/A	1:03.09 (+14.03s \| 18.2%)
Breast 50 Y	46.64	38.99 (+7.65s \| 16.4%)	34.09 (+12.55s \| 26.9%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	37.99 (+8.65s \| 18.5%)
Breast 100 Y	1:36.89	1:23.59 (+13.30s \| 13.7%)	1:14.29 (+22.60s \| 23.3%)	1:13.59 (+23.30s \| 24.0%)	1:07.89 (+29.00s \| 29.9%)	1:02.89 (+34.00s \| 35.1%)	1:00.89 (+36.00s \| 37.2%)	57.99 (+38.90s \| 40.1%)	57.99 (+38.90s \| 40.1%)	55.89 (+41.00s \| 42.3%)	54.19 (+42.70s \| 44.1%)	55.29 (+41.60s \| 42.9%)	N/A	1:21.69 (+15.20s \| 15.7%)
Breast 200 Y	3:30.16	2:59.39 (+30.77s \| 14.6%)	2:39.89 (+50.27s \| 23.9%)	2:40.49 (+49.67s \| 23.6%)	2:28.09 (+62.07s \| 29.5%)	2:18.19 (+71.97s \| 34.2%)	2:13.29 (+76.87s \| 36.6%)	2:07.99 (+82.17s \| 39.1%)	2:07.99 (+82.17s \| 39.1%)	2:02.29 (+87.87s \| 41.8%)	1:58.79 (+91.37s \| 43.5%)	2:00.99 (+89.17s \| 42.4%)	N/A	2:55.29 (+34.87s \| 16.6%)
Fly 50 Y	40.87	33.39 (+7.48s \| 18.3%)	28.89 (+11.98s \| 29.3%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	32.69 (+8.18s \| 20.0%)
Fly 100 Y	1:53.96	1:14.59 (+39.37s \| 34.5%)	1:04.99 (+48.97s \| 43.0%)	1:03.89 (+50.07s \| 43.9%)	58.99 (+54.97s \| 48.2%)	55.49 (+58.47s \| 51.3%)	52.89 (+61.07s \| 53.6%)	50.59 (+63.37s \| 55.6%)	50.59 (+63.37s \| 55.6%)	48.99 (+64.97s \| 57.0%)	47.79 (+66.17s \| 58.1%)	48.39 (+65.57s \| 57.5%)	N/A	1:11.99 (+41.97s \| 36.8%)
IM 100 Y	1:33.80	1:14.69 (+19.11s \| 20.4%)	1:06.09 (+27.71s \| 29.5%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	1:12.79 (+21.01s \| 22.4%)

Long Course Distance

Event	Best Time	Age Group Championship	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	SouthWestern Age Group Regional
Free 50 M	47.59	34.19 (+13.40s \| 28.2%)	30.39 (+17.20s \| 36.1%)	30.19 (+17.40s \| 36.6%)	27.89 (+19.70s \| 41.4%)	26.79 (+20.80s \| 43.7%)	25.89 (+21.70s \| 45.6%)	24.59 (+23.00s \| 48.3%)	24.59 (+23.00s \| 48.3%)	24.29 (+23.30s \| 49.0%)	23.39 (+24.20s \| 50.9%)	23.79 (+23.80s \| 50.0%)	N/A	22.79 (+24.80s \| 52.1%)	33.39 (+14.20s \| 29.8%)
Free 100 M	1:48.53	1:14.59 (+33.94s \| 31.3%)	1:06.19 (+42.34s \| 39.0%)	1:07.39 (+41.14s \| 37.9%)	1:02.19 (+46.34s \| 42.7%)	59.19 (+49.34s \| 45.5%)	56.09 (+52.44s \| 48.3%)	53.59 (+54.94s \| 50.6%)	53.59 (+54.94s \| 50.6%)	52.59 (+55.94s \| 51.5%)	50.99 (+57.54s \| 53.0%)	51.99 (+56.54s \| 52.1%)	N/A	49.99 (+58.54s \| 53.9%)	1:12.19 (+36.34s \| 33.5%)
Breast 50 M	58.92	44.69 (+14.23s \| 24.2%)	38.89 (+20.03s \| 34.0%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	43.89 (+15.03s \| 25.5%)
Breast 100 M	2:09.01	1:37.69 (+31.32s \| 24.3%)	1:24.49 (+44.52s \| 34.5%)	1:25.49 (+43.52s \| 33.7%)	1:18.89 (+50.12s \| 38.8%)	1:13.79 (+55.22s \| 42.8%)	1:11.29 (+57.72s \| 44.7%)	1:08.19 (+60.82s \| 47.1%)	1:08.19 (+60.82s \| 47.1%)	1:06.59 (+62.42s \| 48.4%)	1:04.09 (+64.92s \| 50.3%)	1:05.29 (+63.72s \| 49.4%)	N/A	1:02.19 (+66.82s \| 51.8%)	1:34.89 (+34.12s \| 26.4%)
Fly 50 M	56.01	37.59 (+18.42s \| 32.9%)	32.99 (+23.02s \| 41.1%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	36.99 (+19.02s \| 34.0%)
Fly 100 M	2:11.97	1:25.19 (+46.78s \| 35.4%)	1:14.39 (+57.58s \| 43.6%)	1:12.69 (+59.28s \| 44.9%)	1:07.09 (+64.88s \| 49.2%)	1:03.59 (+68.38s \| 51.8%)	1:00.89 (+71.08s \| 53.9%)	57.99 (+73.98s \| 56.1%)	57.99 (+73.98s \| 56.1%)	57.09 (+74.88s \| 56.7%)	55.09 (+76.88s \| 58.3%)	55.99 (+75.98s \| 57.6%)	N/A	53.59 (+78.38s \| 59.4%)	1:22.19 (+49.78s \| 37.7%)

Progression

See how William Chang 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 Chang 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

LAMV C B A+ Meet

03/28/2026

Mountain View

100 Y Breast

1:36.89

-5.37s (New PB)

B: 1:32.59 (+4.30s | 4.4%)

50 Breast

45.22

100 Breast

51.67

1:36.89

100 Breast

1:36.89

50 Y Fly

40.87

-1.60s (New PB)

B: 37.09 (+3.78s | 9.2%)

100 Y Free

1:17.12

-2.71s (New PB)

B: 1:11.49 (+5.63s | 7.3%)

50 Free

37.07

100 Free

40.05

1:17.12

100 Free

1:17.12

Alto Feb 7 8 CBA Valentines Day

02/07/2026

Palo Alto

50 Y Fly

42.47

-1.33s (New PB)

B: 37.09 (+5.38s | 12.7%)

200 Y Breast

3:30.16

B: 3:16.39 (+13.77s | 6.6%)

50 Breast

49.25

100 Breast

52.66

1:41.91

100 Breast

1:41.91

150 Breast

55.64

2:37.55

200 Breast

52.61

3:30.16

100 Breast

1:48.25

100 Y Free

1:19.83

-7.93s (New PB)

B: 1:11.49 (+8.34s | 10.4%)

50 Free

37.44

100 Free

42.39

1:19.83

100 Free

1:19.83

Alto Dec 6 7 CBA

12/06/2025

Palo Alto

100 Y Breast

1:42.26

-0.55s (New PB)

A: 1:30.59 (+11.67s | 11.4%)

50 Breast

48.51

100 Breast

53.75

1:42.26

100 Breast

1:42.26

50 Y Fly

45.31

+1.51s

BB: 41.29 (+4.02s | 8.9%)

2025 SUNN Fall Classic

10/25/2025

Sunnyvale

50 Y Breast

46.64

-2.56s (New PB)

A: 42.09 (+4.55s | 9.8%)

50 Y Fly

43.80

-1.58s (New PB)

BB: 41.29 (+2.51s | 5.7%)

100 Y IM

1:33.80

-6.03s (New PB)

BB: 1:29.69 (+4.11s | 4.4%)

2025 DACA SC CBA Meet

10/11/2025

Saratoga

50 Y Free

40.89

+1.56s

B: 38.19 (+2.70s | 6.6%)

100 Y Free

1:27.76

BB: 1:18.89 (+8.87s | 10.1%)

50 Y Breast

49.20

-0.44s (New PB)

BB: 47.69 (+1.51s | 3.1%)

100 Y Breast

1:42.81

BB: 1:42.29 (+0.52s | 0.5%)

100 Y Fly

1:53.96

B: 1:53.49 (+0.47s | 0.4%)

50 Y Fly

45.38

BB: 41.29 (+4.09s | 9.0%)

SUNN Blue And Gold Intrasquad Meet Copied

09/28/2025

Sunnyvale

50 Y Breast

49.64

BB: 47.69 (+1.95s | 3.9%)

50 Y Free

39.33

B: 38.19 (+1.14s | 2.9%)

100 Y IM

1:39.83

B: 1:39.69 (+0.14s | 0.1%)

Silicon Valley LC CBA+ Meet

06/27/2025

Sunnyvale

50 M Fly

56.01

B: 52.29 (+3.72s | 6.6%)

100 M Free

1:48.53

B: 1:40.99 (+7.54s | 6.9%)

100 M Fly

2:11.97

B: 2:09.49 (+2.48s | 1.9%)

50 M Breast

58.92

BB: 54.39 (+4.53s | 7.7%)

50 M Free

47.59

B: 43.89 (+3.70s | 7.8%)

100 M Breast

2:09.01

BB: 1:59.19 (+9.82s | 7.6%)

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	Age Group Championship	Far Western	Senior Open	Senior 2	Western Zone Sr.	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ	NATIONAL	SouthWestern Age Group Regional
Free 50 Y	39.33	29.79 (+9.54s \| 24.3%)	26.19 (+13.14s \| 33.4%)	26.89 (+12.44s \| 31.6%)	24.79 (+14.54s \| 37.0%)	23.29 (+16.04s \| 40.8%)	22.19 (+17.14s \| 43.6%)	21.29 (+18.04s \| 45.9%)	21.29 (+18.04s \| 45.9%)	20.59 (+18.74s \| 47.6%)	20.09 (+19.24s \| 48.9%)	20.39 (+18.94s \| 48.2%)	N/A	29.59 (+9.74s \| 24.8%)
Free 100 Y	1:17.12	1:05.19 (+11.93s \| 15.5%)	57.29 (+19.83s \| 25.7%)	58.69 (+18.43s \| 23.9%)	54.19 (+22.93s \| 29.7%)	51.19 (+25.93s \| 33.6%)	48.19 (+28.93s \| 37.5%)	46.39 (+30.73s \| 39.8%)	46.39 (+30.73s \| 39.8%)	45.09 (+32.03s \| 41.5%)	43.49 (+33.63s \| 43.6%)	44.39 (+32.73s \| 42.4%)	N/A	1:03.09 (+14.03s \| 18.2%)
Breast 50 Y	46.64	38.99 (+7.65s \| 16.4%)	34.09 (+12.55s \| 26.9%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	37.99 (+8.65s \| 18.5%)
Breast 100 Y	1:36.89	1:23.59 (+13.30s \| 13.7%)	1:14.29 (+22.60s \| 23.3%)	1:13.59 (+23.30s \| 24.0%)	1:07.89 (+29.00s \| 29.9%)	1:02.89 (+34.00s \| 35.1%)	1:00.89 (+36.00s \| 37.2%)	57.99 (+38.90s \| 40.1%)	57.99 (+38.90s \| 40.1%)	55.89 (+41.00s \| 42.3%)	54.19 (+42.70s \| 44.1%)	55.29 (+41.60s \| 42.9%)	N/A	1:21.69 (+15.20s \| 15.7%)
Breast 200 Y	3:30.16	2:59.39 (+30.77s \| 14.6%)	2:39.89 (+50.27s \| 23.9%)	2:40.49 (+49.67s \| 23.6%)	2:28.09 (+62.07s \| 29.5%)	2:18.19 (+71.97s \| 34.2%)	2:13.29 (+76.87s \| 36.6%)	2:07.99 (+82.17s \| 39.1%)	2:07.99 (+82.17s \| 39.1%)	2:02.29 (+87.87s \| 41.8%)	1:58.79 (+91.37s \| 43.5%)	2:00.99 (+89.17s \| 42.4%)	N/A	2:55.29 (+34.87s \| 16.6%)
Fly 50 Y	40.87	33.39 (+7.48s \| 18.3%)	28.89 (+11.98s \| 29.3%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	32.69 (+8.18s \| 20.0%)
Fly 100 Y	1:53.96	1:14.59 (+39.37s \| 34.5%)	1:04.99 (+48.97s \| 43.0%)	1:03.89 (+50.07s \| 43.9%)	58.99 (+54.97s \| 48.2%)	55.49 (+58.47s \| 51.3%)	52.89 (+61.07s \| 53.6%)	50.59 (+63.37s \| 55.6%)	50.59 (+63.37s \| 55.6%)	48.99 (+64.97s \| 57.0%)	47.79 (+66.17s \| 58.1%)	48.39 (+65.57s \| 57.5%)	N/A	1:11.99 (+41.97s \| 36.8%)
IM 100 Y	1:33.80	1:14.69 (+19.11s \| 20.4%)	1:06.09 (+27.71s \| 29.5%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	1:12.79 (+21.01s \| 22.4%)

Event	Best Time	Age Group Championship	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	SouthWestern Age Group Regional
Free 50 M	47.59	34.19 (+13.40s \| 28.2%)	30.39 (+17.20s \| 36.1%)	30.19 (+17.40s \| 36.6%)	27.89 (+19.70s \| 41.4%)	26.79 (+20.80s \| 43.7%)	25.89 (+21.70s \| 45.6%)	24.59 (+23.00s \| 48.3%)	24.59 (+23.00s \| 48.3%)	24.29 (+23.30s \| 49.0%)	23.39 (+24.20s \| 50.9%)	23.79 (+23.80s \| 50.0%)	N/A	22.79 (+24.80s \| 52.1%)	33.39 (+14.20s \| 29.8%)
Free 100 M	1:48.53	1:14.59 (+33.94s \| 31.3%)	1:06.19 (+42.34s \| 39.0%)	1:07.39 (+41.14s \| 37.9%)	1:02.19 (+46.34s \| 42.7%)	59.19 (+49.34s \| 45.5%)	56.09 (+52.44s \| 48.3%)	53.59 (+54.94s \| 50.6%)	53.59 (+54.94s \| 50.6%)	52.59 (+55.94s \| 51.5%)	50.99 (+57.54s \| 53.0%)	51.99 (+56.54s \| 52.1%)	N/A	49.99 (+58.54s \| 53.9%)	1:12.19 (+36.34s \| 33.5%)
Breast 50 M	58.92	44.69 (+14.23s \| 24.2%)	38.89 (+20.03s \| 34.0%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	43.89 (+15.03s \| 25.5%)
Breast 100 M	2:09.01	1:37.69 (+31.32s \| 24.3%)	1:24.49 (+44.52s \| 34.5%)	1:25.49 (+43.52s \| 33.7%)	1:18.89 (+50.12s \| 38.8%)	1:13.79 (+55.22s \| 42.8%)	1:11.29 (+57.72s \| 44.7%)	1:08.19 (+60.82s \| 47.1%)	1:08.19 (+60.82s \| 47.1%)	1:06.59 (+62.42s \| 48.4%)	1:04.09 (+64.92s \| 50.3%)	1:05.29 (+63.72s \| 49.4%)	N/A	1:02.19 (+66.82s \| 51.8%)	1:34.89 (+34.12s \| 26.4%)
Fly 50 M	56.01	37.59 (+18.42s \| 32.9%)	32.99 (+23.02s \| 41.1%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	36.99 (+19.02s \| 34.0%)
Fly 100 M	2:11.97	1:25.19 (+46.78s \| 35.4%)	1:14.39 (+57.58s \| 43.6%)	1:12.69 (+59.28s \| 44.9%)	1:07.09 (+64.88s \| 49.2%)	1:03.59 (+68.38s \| 51.8%)	1:00.89 (+71.08s \| 53.9%)	57.99 (+73.98s \| 56.1%)	57.99 (+73.98s \| 56.1%)	57.09 (+74.88s \| 56.7%)	55.09 (+76.88s \| 58.3%)	55.99 (+75.98s \| 57.6%)	N/A	53.59 (+78.38s \| 59.4%)	1:22.19 (+49.78s \| 37.7%)