Chengkai Cui

Age: 10 years old
Age Category: 10 & under
Team: DeAnza Cupertino Aquatics | Pacific Swimming

Personal Best

Short course distance

Event

Time

Age

Date

Standard

Next Standard

DeAnza Cupertino Aquatics

Pacific Swimming

Western Zone

USA

Free 25 Y

24.88

08/04/2023

697

1,000+

Free 50 Y

42.63

03/07/2026

B: 38.19 (+4.44s | 10.4%)

606

1,000+

Free 100 Y

1:34.56

Analysis

03/28/2026

B: 1:27.99 (+6.57s | 6.9%)

476

1,000+

50 Free

44.66

100 Free

49.90

1:34.56

100 Free

1:34.56

Back 25 Y

30.09

08/04/2023

674

1,000+

Back 100 Y

1:42.92

Analysis

03/07/2026

B: 1:40.69 (+2.23s | 2.2%)

233

1,000+

Breast 25 Y

27.42

08/04/2023

293

739

1,000+

Breast 50 Y

47.87

03/07/2026

BB: 47.69 (+0.18s | 0.4%)

163

626

1,000+

Breast 100 Y

1:36.76

Analysis

03/28/2026

A: 1:30.59 (+6.17s | 6.4%)

346

1,000+

50 Breast

46.06

100 Breast

50.70

1:36.76

100 Breast

1:36.76

Long course distance

Event	Time		Age	Date	Standard	Next Standard	DeAnza Cupertino Aquatics	Pacific Swimming	Western Zone	USA
Free 50 M	49.11		10	05/16/2026		B: 43.89 (+5.22s \| 10.6%)	17	255	1,000+	1,000+

Free 100 M	1:51.83	Analysis	10	06/27/2025		B: 1:40.99 (+10.84s \| 9.7%)	17	266	995	1,000+

Back 100 M	1:55.78	Analysis	10	05/16/2026	B	BB: 1:44.49 (+11.29s \| 9.8%)	8	127	598	1,000+

Breast 50 M	55.70		10	05/16/2026	B	BB: 54.39 (+1.31s \| 2.4%)	8	90	411	759

Breast 100 M	1:50.65	Analysis	10	05/16/2026	BB	A: 1:45.49 (+5.16s \| 4.7%)	5	46	164	292

Above are the fastest times that Chengkai Cui has achieved in his swimming career. For each event, you can find Chengkai's best time, the corresponding time standard, as well as how much faster Chengkai needs to be to reach the next level. The last columns provide Chengkai rankings at the team and LSC levels. These rankings are based on the Chengkai'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	42.63	30.99 (+11.64s \| 27.3%)	30.19 (+12.44s \| 29.2%)	26.89 (+15.74s \| 36.9%)	24.79 (+17.84s \| 41.8%)	23.29 (+19.34s \| 45.4%)	22.19 (+20.44s \| 47.9%)	21.29 (+21.34s \| 50.1%)	21.29 (+21.34s \| 50.1%)	20.59 (+22.04s \| 51.7%)	20.09 (+22.54s \| 52.9%)	20.39 (+22.24s \| 52.2%)	N/A	30.49 (+12.14s \| 28.5%)
Free 100 Y	1:34.56	1:09.69 (+24.87s \| 26.3%)	1:07.59 (+26.97s \| 28.5%)	58.69 (+35.87s \| 37.9%)	54.19 (+40.37s \| 42.7%)	51.19 (+43.37s \| 45.9%)	48.19 (+46.37s \| 49.0%)	46.39 (+48.17s \| 50.9%)	46.39 (+48.17s \| 50.9%)	45.09 (+49.47s \| 52.3%)	43.49 (+51.07s \| 54.0%)	44.39 (+50.17s \| 53.1%)	N/A	1:07.19 (+27.37s \| 28.9%)
Back 100 Y	1:42.92	1:18.89 (+24.03s \| 23.3%)	1:17.09 (+25.83s \| 25.1%)	1:04.69 (+38.23s \| 37.1%)	59.79 (+43.13s \| 41.9%)	55.99 (+46.93s \| 45.6%)	53.89 (+49.03s \| 47.6%)	51.49 (+51.43s \| 50.0%)	51.49 (+51.43s \| 50.0%)	49.39 (+53.53s \| 52.0%)	47.59 (+55.33s \| 53.8%)	48.89 (+54.03s \| 52.5%)	N/A	1:16.59 (+26.33s \| 25.6%)
Breast 50 Y	47.87	40.99 (+6.88s \| 14.4%)	39.99 (+7.88s \| 16.5%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	40.29 (+7.58s \| 15.8%)
Breast 100 Y	1:36.76	1:28.99 (+7.77s \| 8.0%)	1:26.99 (+9.77s \| 10.1%)	1:13.59 (+23.17s \| 23.9%)	1:07.89 (+28.87s \| 29.8%)	1:02.89 (+33.87s \| 35.0%)	1:00.89 (+35.87s \| 37.1%)	57.99 (+38.77s \| 40.1%)	57.99 (+38.77s \| 40.1%)	55.89 (+40.87s \| 42.2%)	54.19 (+42.57s \| 44.0%)	55.29 (+41.47s \| 42.9%)	N/A	1:26.29 (+10.47s \| 10.8%)

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	49.11	35.49 (+13.62s \| 27.7%)	34.39 (+14.72s \| 30.0%)	30.19 (+18.92s \| 38.5%)	27.89 (+21.22s \| 43.2%)	26.79 (+22.32s \| 45.4%)	25.89 (+23.22s \| 47.3%)	24.59 (+24.52s \| 49.9%)	24.59 (+24.52s \| 49.9%)	24.29 (+24.82s \| 50.5%)	23.39 (+25.72s \| 52.4%)	23.79 (+25.32s \| 51.6%)	N/A	22.79 (+26.32s \| 53.6%)	34.59 (+14.52s \| 29.6%)
Free 100 M	1:51.83	1:19.49 (+32.34s \| 28.9%)	1:17.09 (+34.74s \| 31.1%)	1:07.39 (+44.44s \| 39.7%)	1:02.19 (+49.64s \| 44.4%)	59.19 (+52.64s \| 47.1%)	56.09 (+55.74s \| 49.8%)	53.59 (+58.24s \| 52.1%)	53.59 (+58.24s \| 52.1%)	52.59 (+59.24s \| 53.0%)	50.99 (+60.84s \| 54.4%)	51.99 (+59.84s \| 53.5%)	N/A	49.99 (+61.84s \| 55.3%)	1:16.89 (+34.94s \| 31.2%)
Back 100 M	1:55.78	1:30.89 (+24.89s \| 21.5%)	1:26.79 (+28.99s \| 25.0%)	1:15.49 (+40.29s \| 34.8%)	1:09.69 (+46.09s \| 39.8%)	1:05.89 (+49.89s \| 43.1%)	1:03.29 (+52.49s \| 45.3%)	1:00.59 (+55.19s \| 47.7%)	1:00.59 (+55.19s \| 47.7%)	58.89 (+56.89s \| 49.1%)	57.29 (+58.49s \| 50.5%)	58.19 (+57.59s \| 49.7%)	N/A	55.69 (+60.09s \| 51.9%)	1:27.69 (+28.09s \| 24.3%)
Breast 50 M	55.70	46.99 (+8.71s \| 15.6%)	45.59 (+10.11s \| 18.2%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	46.29 (+9.41s \| 16.9%)
Breast 100 M	1:50.65	1:42.69 (+7.96s \| 7.2%)	1:39.19 (+11.46s \| 10.4%)	1:25.49 (+25.16s \| 22.7%)	1:18.89 (+31.76s \| 28.7%)	1:13.79 (+36.86s \| 33.3%)	1:11.29 (+39.36s \| 35.6%)	1:08.19 (+42.46s \| 38.4%)	1:08.19 (+42.46s \| 38.4%)	1:06.59 (+44.06s \| 39.8%)	1:04.09 (+46.56s \| 42.1%)	1:05.29 (+45.36s \| 41.0%)	N/A	1:02.19 (+48.46s \| 43.8%)	1:40.19 (+10.46s \| 9.5%)

Progression

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

Event

Time

Progress

Standard

Next Standard

Age

Heat

Lane

Ranking

2026 DACA LC CBA+

05/16/2026

Saratoga

50 M Breast

55.70

BB: 54.39 (+1.31s | 2.4%)

50 M Free

49.11

-1.57s (New PB)

B: 43.89 (+5.22s | 10.6%)

100 M Back

1:55.78

BB: 1:44.49 (+11.29s | 9.8%)

100 M Breast

1:50.65

-16.91s (New PB)

A: 1:45.49 (+5.16s | 4.7%)

LAMV C B A+ Meet

03/28/2026

Mountain View

100 Y Free

1:34.56

-4.79s (New PB)

B: 1:27.99 (+6.57s | 6.9%)

50 Free

44.66

100 Free

49.90

1:34.56

100 Free

1:34.56

100 Y Breast

1:36.76

-12.86s (New PB)

A: 1:30.59 (+6.17s | 6.4%)

50 Breast

46.06

100 Breast

50.70

1:36.76

100 Breast

1:36.76

DACA CBA Meet

03/07/2026

Saratoga

100 Y Back

1:42.92

B: 1:40.69 (+2.23s | 2.2%)

50 Y Breast

47.87

-2.53s (New PB)

BB: 47.69 (+0.18s | 0.4%)

50 Y Free

42.63

-4.31s (New PB)

B: 38.19 (+4.44s | 10.4%)

2025 DACA SC CBA Meet

07/19/2025

Saratoga

50 Y Breast

50.40

-11.83s (New PB)

BB: 47.69 (+2.71s | 5.4%)

100 Y Breast

1:49.62

BB: 1:42.29 (+7.33s | 6.7%)

100 Y Free

1:39.35

B: 1:27.99 (+11.36s | 11.4%)

50 Y Free

46.94

-9.91s (New PB)

B: 38.19 (+8.75s | 18.6%)

Silicon Valley LC CBA+ Meet

06/27/2025

Sunnyvale

100 M Breast

2:07.56

BB: 1:59.19 (+8.37s | 6.6%)

50 M Free

50.68

B: 43.89 (+6.79s | 13.4%)

100 M Free

1:51.83

B: 1:40.99 (+10.84s | 9.7%)

Neptune Swimming Swim Like The Dickens

12/08/2023

Santa Rosa

50 Y Free

56.85

-0.24s (New PB)

B: 38.19 (+18.66s | 32.8%)

25 Y Breast

29.68

+2.26s

25 Y Free

25.06

+0.18s

50 Y Breast

1:02.23

B: 53.39 (+8.84s | 14.2%)

2023 REAL Championships

08/04/2023

Santa Rosa

25 Y Breast

27.42

50 Y Free

57.09

B: 38.19 (+18.90s | 33.1%)

25 Y Free

24.88

-8.19s (New PB)

25 Y Back

30.09

Sebastopol Sea Serpents Invitational

10/29/2022

Sebastopol

25 Y Free

33.07

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	42.63	30.99 (+11.64s \| 27.3%)	30.19 (+12.44s \| 29.2%)	26.89 (+15.74s \| 36.9%)	24.79 (+17.84s \| 41.8%)	23.29 (+19.34s \| 45.4%)	22.19 (+20.44s \| 47.9%)	21.29 (+21.34s \| 50.1%)	21.29 (+21.34s \| 50.1%)	20.59 (+22.04s \| 51.7%)	20.09 (+22.54s \| 52.9%)	20.39 (+22.24s \| 52.2%)	N/A	30.49 (+12.14s \| 28.5%)
Free 100 Y	1:34.56	1:09.69 (+24.87s \| 26.3%)	1:07.59 (+26.97s \| 28.5%)	58.69 (+35.87s \| 37.9%)	54.19 (+40.37s \| 42.7%)	51.19 (+43.37s \| 45.9%)	48.19 (+46.37s \| 49.0%)	46.39 (+48.17s \| 50.9%)	46.39 (+48.17s \| 50.9%)	45.09 (+49.47s \| 52.3%)	43.49 (+51.07s \| 54.0%)	44.39 (+50.17s \| 53.1%)	N/A	1:07.19 (+27.37s \| 28.9%)
Back 100 Y	1:42.92	1:18.89 (+24.03s \| 23.3%)	1:17.09 (+25.83s \| 25.1%)	1:04.69 (+38.23s \| 37.1%)	59.79 (+43.13s \| 41.9%)	55.99 (+46.93s \| 45.6%)	53.89 (+49.03s \| 47.6%)	51.49 (+51.43s \| 50.0%)	51.49 (+51.43s \| 50.0%)	49.39 (+53.53s \| 52.0%)	47.59 (+55.33s \| 53.8%)	48.89 (+54.03s \| 52.5%)	N/A	1:16.59 (+26.33s \| 25.6%)
Breast 50 Y	47.87	40.99 (+6.88s \| 14.4%)	39.99 (+7.88s \| 16.5%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	40.29 (+7.58s \| 15.8%)
Breast 100 Y	1:36.76	1:28.99 (+7.77s \| 8.0%)	1:26.99 (+9.77s \| 10.1%)	1:13.59 (+23.17s \| 23.9%)	1:07.89 (+28.87s \| 29.8%)	1:02.89 (+33.87s \| 35.0%)	1:00.89 (+35.87s \| 37.1%)	57.99 (+38.77s \| 40.1%)	57.99 (+38.77s \| 40.1%)	55.89 (+40.87s \| 42.2%)	54.19 (+42.57s \| 44.0%)	55.29 (+41.47s \| 42.9%)	N/A	1:26.29 (+10.47s \| 10.8%)

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	49.11	35.49 (+13.62s \| 27.7%)	34.39 (+14.72s \| 30.0%)	30.19 (+18.92s \| 38.5%)	27.89 (+21.22s \| 43.2%)	26.79 (+22.32s \| 45.4%)	25.89 (+23.22s \| 47.3%)	24.59 (+24.52s \| 49.9%)	24.59 (+24.52s \| 49.9%)	24.29 (+24.82s \| 50.5%)	23.39 (+25.72s \| 52.4%)	23.79 (+25.32s \| 51.6%)	N/A	22.79 (+26.32s \| 53.6%)	34.59 (+14.52s \| 29.6%)
Free 100 M	1:51.83	1:19.49 (+32.34s \| 28.9%)	1:17.09 (+34.74s \| 31.1%)	1:07.39 (+44.44s \| 39.7%)	1:02.19 (+49.64s \| 44.4%)	59.19 (+52.64s \| 47.1%)	56.09 (+55.74s \| 49.8%)	53.59 (+58.24s \| 52.1%)	53.59 (+58.24s \| 52.1%)	52.59 (+59.24s \| 53.0%)	50.99 (+60.84s \| 54.4%)	51.99 (+59.84s \| 53.5%)	N/A	49.99 (+61.84s \| 55.3%)	1:16.89 (+34.94s \| 31.2%)
Back 100 M	1:55.78	1:30.89 (+24.89s \| 21.5%)	1:26.79 (+28.99s \| 25.0%)	1:15.49 (+40.29s \| 34.8%)	1:09.69 (+46.09s \| 39.8%)	1:05.89 (+49.89s \| 43.1%)	1:03.29 (+52.49s \| 45.3%)	1:00.59 (+55.19s \| 47.7%)	1:00.59 (+55.19s \| 47.7%)	58.89 (+56.89s \| 49.1%)	57.29 (+58.49s \| 50.5%)	58.19 (+57.59s \| 49.7%)	N/A	55.69 (+60.09s \| 51.9%)	1:27.69 (+28.09s \| 24.3%)
Breast 50 M	55.70	46.99 (+8.71s \| 15.6%)	45.59 (+10.11s \| 18.2%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	46.29 (+9.41s \| 16.9%)
Breast 100 M	1:50.65	1:42.69 (+7.96s \| 7.2%)	1:39.19 (+11.46s \| 10.4%)	1:25.49 (+25.16s \| 22.7%)	1:18.89 (+31.76s \| 28.7%)	1:13.79 (+36.86s \| 33.3%)	1:11.29 (+39.36s \| 35.6%)	1:08.19 (+42.46s \| 38.4%)	1:08.19 (+42.46s \| 38.4%)	1:06.59 (+44.06s \| 39.8%)	1:04.09 (+46.56s \| 42.1%)	1:05.29 (+45.36s \| 41.0%)	N/A	1:02.19 (+48.46s \| 43.8%)	1:40.19 (+10.46s \| 9.5%)