Zizhi Zhang

Age: 9 years old
Age Category: 10 & under
Team: Sunnyvale Swim Club | Pacific Swimming

Personal Best

Short course distance

Event

Time

Age

Date

Standard

Next Standard

Pacific Swimming

Sunnyvale Swim Club

Free 25 Y

23.78

12/07/2024

743

Free 50 Y

42.92

09/28/2025

B: 38.19 (+4.73s | 11.0%)

673

Free 100 Y

2:03.54

01/25/2025

B: 1:27.99 (+35.55s | 28.8%)

873

50 Free

58.24

100 Free

1:05.30

2:03.54

100 Free

2:03.54

Back 25 Y

28.39

12/07/2024

681

Back 50 Y

1:08.08

01/25/2025

B: 48.29 (+19.79s | 29.1%)

1,000+

Breast 25 Y

27.80

04/11/2025

344

Breast 50 Y

57.33

09/27/2025

B: 53.39 (+3.94s | 6.9%)

550

Breast 100 Y

2:15.60

11/16/2024

B: 1:54.09 (+21.51s | 15.9%)

415

50 Breast

1:06.59

100 Breast

1:09.01

2:15.60

100 Breast

2:15.60

Fly 25 Y

34.48

02/22/2025

581

Fly 50 Y

1:24.95

01/25/2025

B: 46.49 (+38.46s | 45.3%)

663

IM 100 Y

1:58.55

09/27/2025

B: 1:39.69 (+18.86s | 15.9%)

600

50 IM

1:03.00

100 IM

55.55

1:58.55

100 IM

1:58.55

Long course distance

Event

Time

Age

Date

Standard

Next Standard

Pacific Swimming

Sunnyvale Swim Club

Free 50 M

52.30

05/29/2025

B: 43.89 (+8.41s | 16.1%)

449

Free 100 M

2:08.46

05/29/2025

B: 1:40.99 (+27.47s | 21.4%)

487

50 Free

58.84

100 Free

1:09.62

2:08.46

100 Free

2:08.46

Back 50 M

1:15.16

06/14/2025

B: 55.39 (+19.77s | 26.3%)

568

Back 100 M

2:44.66

05/29/2025

B: 1:56.69 (+47.97s | 29.1%)

341

50 Back

1:21.89

100 Back

1:22.77

2:44.66

100 Back

2:44.66

Breast 50 M

1:07.25

05/29/2025

B: 1:00.89 (+6.36s | 9.5%)

392

Breast 100 M

2:20.85

06/14/2025

B: 2:12.89 (+7.96s | 5.7%)

254

Fly 50 M

1:22.31

06/14/2025

B: 52.29 (+30.02s | 36.5%)

368

Fly 100 M

3:13.79

05/29/2025

B: 2:09.49 (+64.30s | 33.2%)

104

50 Fly

1:30.43

100 Fly

1:43.36

3:13.79

100 Fly

3:13.79

Above are the fastest times that Zizhi Zhang has achieved in his swimming career. For each event, you can find Zizhi's best time, the corresponding time standard, as well as how much faster Zizhi needs to be to reach the next level. The last columns provide Zizhi rankings at the team and LSC levels. These rankings are based on the Zizhi'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	42.92	30.99 (+11.93s \| 27.8%)	30.19 (+12.73s \| 29.7%)	26.89 (+16.03s \| 37.3%)	24.79 (+18.13s \| 42.2%)	23.29 (+19.63s \| 45.7%)	22.19 (+20.73s \| 48.3%)	21.29 (+21.63s \| 50.4%)	21.29 (+21.63s \| 50.4%)	20.59 (+22.33s \| 52.0%)	20.09 (+22.83s \| 53.2%)	20.39 (+22.53s \| 52.5%)	N/A	30.49 (+12.43s \| 29.0%)
Free 100 Y	2:03.54	1:09.69 (+53.85s \| 43.6%)	1:07.59 (+55.95s \| 45.3%)	58.69 (+64.85s \| 52.5%)	54.19 (+69.35s \| 56.1%)	51.19 (+72.35s \| 58.6%)	48.19 (+75.35s \| 61.0%)	46.39 (+77.15s \| 62.4%)	46.39 (+77.15s \| 62.4%)	45.09 (+78.45s \| 63.5%)	43.49 (+80.05s \| 64.8%)	44.39 (+79.15s \| 64.1%)	N/A	1:07.19 (+56.35s \| 45.6%)
Back 50 Y	1:08.08	36.99 (+31.09s \| 45.7%)	35.79 (+32.29s \| 47.4%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	36.29 (+31.79s \| 46.7%)
Breast 50 Y	57.33	40.99 (+16.34s \| 28.5%)	39.99 (+17.34s \| 30.2%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	40.29 (+17.04s \| 29.7%)
Breast 100 Y	2:15.60	1:28.99 (+46.61s \| 34.4%)	1:26.99 (+48.61s \| 35.8%)	1:13.59 (+62.01s \| 45.7%)	1:07.89 (+67.71s \| 49.9%)	1:02.89 (+72.71s \| 53.6%)	1:00.89 (+74.71s \| 55.1%)	57.99 (+77.61s \| 57.2%)	57.99 (+77.61s \| 57.2%)	55.89 (+79.71s \| 58.8%)	54.19 (+81.41s \| 60.0%)	55.29 (+80.31s \| 59.2%)	N/A	1:26.29 (+49.31s \| 36.4%)
Fly 50 Y	1:24.95	35.39 (+49.56s \| 58.3%)	33.99 (+50.96s \| 60.0%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	34.69 (+50.26s \| 59.2%)
IM 100 Y	1:58.55	1:18.89 (+39.66s \| 33.5%)	1:16.89 (+41.66s \| 35.1%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	1:16.99 (+41.56s \| 35.1%)

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	52.30	35.49 (+16.81s \| 32.1%)	34.39 (+17.91s \| 34.2%)	30.19 (+22.11s \| 42.3%)	27.89 (+24.41s \| 46.7%)	26.79 (+25.51s \| 48.8%)	25.89 (+26.41s \| 50.5%)	24.59 (+27.71s \| 53.0%)	24.59 (+27.71s \| 53.0%)	24.29 (+28.01s \| 53.6%)	23.39 (+28.91s \| 55.3%)	23.79 (+28.51s \| 54.5%)	N/A	22.79 (+29.51s \| 56.4%)	34.59 (+17.71s \| 33.9%)
Free 100 M	2:08.46	1:19.49 (+48.97s \| 38.1%)	1:17.09 (+51.37s \| 40.0%)	1:07.39 (+61.07s \| 47.5%)	1:02.19 (+66.27s \| 51.6%)	59.19 (+69.27s \| 53.9%)	56.09 (+72.37s \| 56.3%)	53.59 (+74.87s \| 58.3%)	53.59 (+74.87s \| 58.3%)	52.59 (+75.87s \| 59.1%)	50.99 (+77.47s \| 60.3%)	51.99 (+76.47s \| 59.5%)	N/A	49.99 (+78.47s \| 61.1%)	1:16.89 (+51.57s \| 40.1%)
Back 50 M	1:15.16	42.99 (+32.17s \| 42.8%)	40.79 (+34.37s \| 45.7%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	41.59 (+33.57s \| 44.7%)
Back 100 M	2:44.66	1:30.89 (+73.77s \| 44.8%)	1:26.79 (+77.87s \| 47.3%)	1:15.49 (+89.17s \| 54.2%)	1:09.69 (+94.97s \| 57.7%)	1:05.89 (+98.77s \| 60.0%)	1:03.29 (+101.37s \| 61.6%)	1:00.59 (+104.07s \| 63.2%)	1:00.59 (+104.07s \| 63.2%)	58.89 (+105.77s \| 64.2%)	57.29 (+107.37s \| 65.2%)	58.19 (+106.47s \| 64.7%)	N/A	55.69 (+108.97s \| 66.2%)	1:27.69 (+76.97s \| 46.7%)
Breast 50 M	1:07.25	46.99 (+20.26s \| 30.1%)	45.59 (+21.66s \| 32.2%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	46.29 (+20.96s \| 31.2%)
Breast 100 M	2:20.85	1:42.69 (+38.16s \| 27.1%)	1:39.19 (+41.66s \| 29.6%)	1:25.49 (+55.36s \| 39.3%)	1:18.89 (+61.96s \| 44.0%)	1:13.79 (+67.06s \| 47.6%)	1:11.29 (+69.56s \| 49.4%)	1:08.19 (+72.66s \| 51.6%)	1:08.19 (+72.66s \| 51.6%)	1:06.59 (+74.26s \| 52.7%)	1:04.09 (+76.76s \| 54.5%)	1:05.29 (+75.56s \| 53.6%)	N/A	1:02.19 (+78.66s \| 55.8%)	1:40.19 (+40.66s \| 28.9%)
Fly 50 M	1:22.31	40.19 (+42.12s \| 51.2%)	38.49 (+43.82s \| 53.2%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	39.19 (+43.12s \| 52.4%)
Fly 100 M	3:13.79	1:34.29 (+99.50s \| 51.3%)	1:30.29 (+103.50s \| 53.4%)	1:12.69 (+121.10s \| 62.5%)	1:07.09 (+126.70s \| 65.4%)	1:03.59 (+130.20s \| 67.2%)	1:00.89 (+132.90s \| 68.6%)	57.99 (+135.80s \| 70.1%)	57.99 (+135.80s \| 70.1%)	57.09 (+136.70s \| 70.5%)	55.09 (+138.70s \| 71.6%)	55.99 (+137.80s \| 71.1%)	N/A	53.59 (+140.20s \| 72.3%)	1:30.59 (+103.20s \| 53.3%)

Progression

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

Event

Time

Progress

Standard

Next Standard

Age

Heat

Lane

Ranking

SUNN Blue And Gold Intrasquad Meet Copied

09/28/2025

Sunnyvale

50 Y Free

42.92

-0.58s (New PB)

B: 38.19 (+4.73s | 11.0%)

2025 PN IST Sockeye Sprints

09/27/2025

Snohomish

50 Y Breast

57.33

-5.14s (New PB)

B: 53.39 (+3.94s | 6.9%)

100 Y IM

1:58.55

B: 1:39.69 (+18.86s | 15.9%)

50 IM

1:03.00

100 IM

55.55

1:58.55

100 IM

1:58.55

50 Y Free

43.50

-11.02s (New PB)

B: 38.19 (+5.31s | 12.2%)

2025 IST June Invtational

06/14/2025

Federal Way

100 M Breast

2:20.85

-4.38s (New PB)

B: 2:12.89 (+7.96s | 5.7%)

50 M Fly

1:22.31

-2.93s (New PB)

B: 52.29 (+30.02s | 36.5%)

50 M Back

1:15.16

-1.71s (New PB)

B: 55.39 (+19.77s | 26.3%)

100 M Free

2:10.46

+2.00s

B: 1:40.99 (+29.47s | 22.6%)

2025 IE VS Apple Capital

05/29/2025

Wenatchee

50 M Back

1:16.87

B: 55.39 (+21.48s | 27.9%)

50 M Fly

1:25.24

B: 52.29 (+32.95s | 38.7%)

50 M Breast

1:07.25

B: 1:00.89 (+6.36s | 9.5%)

100 M Fly

3:13.79

B: 2:09.49 (+64.30s | 33.2%)

50 Fly

1:30.43

100 Fly

1:43.36

3:13.79

100 Fly

3:13.79

100 M Breast

2:25.23

B: 2:12.89 (+12.34s | 8.5%)

50 Breast

1:09.45

100 Breast

1:15.78

2:25.23

100 Breast

2:25.23

100 M Back

2:44.66

B: 1:56.69 (+47.97s | 29.1%)

50 Back

1:21.89

100 Back

1:22.77

2:44.66

100 Back

2:44.66

100 M Free

2:08.46

B: 1:40.99 (+27.47s | 21.4%)

50 Free

58.84

100 Free

1:09.62

2:08.46

100 Free

2:08.46

50 M Free

52.30

B: 43.89 (+8.41s | 16.1%)

SUNN Spring Showers Intrasquad Meet

04/11/2025

Sunnyvale

25 Y Back

31.86

+3.47s

25 Y Breast

27.80

-0.83s (New PB)

25 Y Free

25.36

+1.58s

2025 PN IST Feb Invitational

02/22/2025

Renton

50 Y Free

54.52

-2.94s (New PB)

B: 38.19 (+16.33s | 30.0%)

25 Y Fly

34.48

50 Y Back

1:09.16

+1.08s

B: 48.29 (+20.87s | 30.2%)

2025 PN IST Janurary Invitational

01/25/2025

Renton

100 Y Free

2:03.54

-2.22s (New PB)

B: 1:27.99 (+35.55s | 28.8%)

50 Free

58.24

100 Free

1:05.30

2:03.54

100 Free

2:03.54

50 Y Back

1:08.08

B: 48.29 (+19.79s | 29.1%)

100 Y Breast

2:15.77

+0.17s

B: 1:54.09 (+21.68s | 16.0%)

50 Breast

1:04.66

100 Breast

1:11.11

2:15.77

100 Breast

2:15.77

50 Y Fly

1:24.95

B: 46.49 (+38.46s | 45.3%)

2024 PN Fall Divisionals, Division 1

12/07/2024

Federal Way

25 Y Breast

28.63

50 Y Free

58.37

+0.91s

B: 38.19 (+20.18s | 34.6%)

25 Y Free

23.78

25 Y Back

28.39

-0.26s (New PB)

2024 PN IST November Invitational

11/16/2024

Snohomish

50 Y Free

57.46

B: 38.19 (+19.27s | 33.5%)

100 Y Breast

2:15.60

B: 1:54.09 (+21.51s | 15.9%)

50 Breast

1:06.59

100 Breast

1:09.01

2:15.60

100 Breast

2:15.60

50 Y Breast

1:02.47

B: 53.39 (+9.08s | 14.5%)

100 Y Free

2:05.76

B: 1:27.99 (+37.77s | 30.0%)

50 Free

1:01.31

100 Free

1:04.45

2:05.76

100 Free

2:05.76

25 Y Back

28.65

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	U.S Olympic Team Trials	SouthWestern Age Group Regional
Free 50 M	52.30	35.49 (+16.81s \| 32.1%)	34.39 (+17.91s \| 34.2%)	30.19 (+22.11s \| 42.3%)	27.89 (+24.41s \| 46.7%)	26.79 (+25.51s \| 48.8%)	25.89 (+26.41s \| 50.5%)	24.59 (+27.71s \| 53.0%)	24.59 (+27.71s \| 53.0%)	24.29 (+28.01s \| 53.6%)	23.39 (+28.91s \| 55.3%)	23.79 (+28.51s \| 54.5%)	N/A	22.79 (+29.51s \| 56.4%)	34.59 (+17.71s \| 33.9%)
Free 100 M	2:08.46	1:19.49 (+48.97s \| 38.1%)	1:17.09 (+51.37s \| 40.0%)	1:07.39 (+61.07s \| 47.5%)	1:02.19 (+66.27s \| 51.6%)	59.19 (+69.27s \| 53.9%)	56.09 (+72.37s \| 56.3%)	53.59 (+74.87s \| 58.3%)	53.59 (+74.87s \| 58.3%)	52.59 (+75.87s \| 59.1%)	50.99 (+77.47s \| 60.3%)	51.99 (+76.47s \| 59.5%)	N/A	49.99 (+78.47s \| 61.1%)	1:16.89 (+51.57s \| 40.1%)
Back 50 M	1:15.16	42.99 (+32.17s \| 42.8%)	40.79 (+34.37s \| 45.7%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	41.59 (+33.57s \| 44.7%)
Back 100 M	2:44.66	1:30.89 (+73.77s \| 44.8%)	1:26.79 (+77.87s \| 47.3%)	1:15.49 (+89.17s \| 54.2%)	1:09.69 (+94.97s \| 57.7%)	1:05.89 (+98.77s \| 60.0%)	1:03.29 (+101.37s \| 61.6%)	1:00.59 (+104.07s \| 63.2%)	1:00.59 (+104.07s \| 63.2%)	58.89 (+105.77s \| 64.2%)	57.29 (+107.37s \| 65.2%)	58.19 (+106.47s \| 64.7%)	N/A	55.69 (+108.97s \| 66.2%)	1:27.69 (+76.97s \| 46.7%)
Breast 50 M	1:07.25	46.99 (+20.26s \| 30.1%)	45.59 (+21.66s \| 32.2%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	46.29 (+20.96s \| 31.2%)
Breast 100 M	2:20.85	1:42.69 (+38.16s \| 27.1%)	1:39.19 (+41.66s \| 29.6%)	1:25.49 (+55.36s \| 39.3%)	1:18.89 (+61.96s \| 44.0%)	1:13.79 (+67.06s \| 47.6%)	1:11.29 (+69.56s \| 49.4%)	1:08.19 (+72.66s \| 51.6%)	1:08.19 (+72.66s \| 51.6%)	1:06.59 (+74.26s \| 52.7%)	1:04.09 (+76.76s \| 54.5%)	1:05.29 (+75.56s \| 53.6%)	N/A	1:02.19 (+78.66s \| 55.8%)	1:40.19 (+40.66s \| 28.9%)
Fly 50 M	1:22.31	40.19 (+42.12s \| 51.2%)	38.49 (+43.82s \| 53.2%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	39.19 (+43.12s \| 52.4%)
Fly 100 M	3:13.79	1:34.29 (+99.50s \| 51.3%)	1:30.29 (+103.50s \| 53.4%)	1:12.69 (+121.10s \| 62.5%)	1:07.09 (+126.70s \| 65.4%)	1:03.59 (+130.20s \| 67.2%)	1:00.89 (+132.90s \| 68.6%)	57.99 (+135.80s \| 70.1%)	57.99 (+135.80s \| 70.1%)	57.09 (+136.70s \| 70.5%)	55.09 (+138.70s \| 71.6%)	55.99 (+137.80s \| 71.1%)	N/A	53.59 (+140.20s \| 72.3%)	1:30.59 (+103.20s \| 53.3%)