Rex Zhao

Age: 10 years old
Age Category: 10 & under
Team: Machine Aquatics | Potomac Valley Swimming

Personal Best

Short course distance

Event

Time

Age

Date

Standard

Next Standard

Machine Aquatics

Potomac Valley Swimming

Eastern Zone

USA

Free 50 Y

31.71

12/04/2025

A: 31.09 (+0.62s | 2.0%)

308

1,000+

Free 100 Y

1:10.24

Analysis

03/12/2026

A: 1:09.79 (+0.45s | 0.6%)

255

1,000+

50 Free

33.92

100 Free

36.32

1:10.24

100 Free

1:10.24

Free 200 Y

2:35.17

Analysis

01/10/2026

A: 2:31.59 (+3.58s | 2.3%)

253

1,000+

50 Free

34.71

100 Free

39.21

1:13.92

100 Free

1:13.92

150 Free

41.05

1:54.97

200 Free

40.20

2:35.17

100 Free

1:21.25

Free 500 Y

7:48.22

Analysis

09/27/2025

BB: 7:33.79 (+14.43s | 3.1%)

356

1,000+

50 Free

40.06

100 Free

47.94

1:28.00

100 Free

1:28.00

150 Free

49.15

2:17.15

200 Free

48.24

3:05.39

100 Free

1:37.39

250 Free

48.94

3:54.33

300 Free

48.26

4:42.59

100 Free

1:37.20

350 Free

47.69

5:30.28

400 Free

49.41

6:19.69

100 Free

1:37.10

450 Free

47.39

7:07.08

500 Free

41.14

7:48.22

100 Free

1:28.53

Back 50 Y

36.98

03/12/2026

AA: 35.79 (+1.19s | 3.2%)

268

887

Back 100 Y

1:18.20

Analysis

03/12/2026

AA: 1:16.09 (+2.11s | 2.7%)

185

679

50 Back

38.01

100 Back

40.19

1:18.20

100 Back

1:18.20

Breast 50 Y

45.83

12/04/2025

A: 42.09 (+3.74s | 8.2%)

174

568

1,000+

Breast 100 Y

1:37.29

Analysis

02/20/2026

A: 1:30.59 (+6.70s | 6.9%)

110

421

1,000+

50 Breast

45.86

100 Breast

51.43

1:37.29

100 Breast

1:37.29

Fly 50 Y

37.09

12/04/2025

A: 35.99 (+1.10s | 3.0%)

341

1,000+

Fly 100 Y

1:27.98

Analysis

12/11/2025

A: 1:24.39 (+3.59s | 4.1%)

316

1,000+

50 Fly

40.20

100 Fly

47.78

1:27.98

100 Fly

1:27.98

IM 100 Y

1:24.13

Analysis

10/18/2025

A: 1:19.69 (+4.44s | 5.3%)

385

1,000+

50 IM

39.66

100 IM

44.47

1:24.13

100 IM

1:24.13

IM 200 Y

2:58.24

Analysis

02/20/2026

A: 2:53.49 (+4.75s | 2.7%)

282

1,000+

50 Fly

39.18

100 Back

45.22

1:24.40

100 IM

1:24.40

150 Breast

52.50

2:16.90

200 Free

41.34

2:58.24

100 IM

1:33.84

Long course distance

Event	Time		Age	Date	Standard	Next Standard	Machine Aquatics	Potomac Valley Swimming	Eastern Zone	USA

Above are the fastest times that Rex Zhao has achieved in his swimming career. For each event, you can find Rex's best time, the corresponding time standard, as well as how much faster Rex needs to be to reach the next level. The last columns provide Rex rankings at the team and LSC levels. These rankings are based on the Rex'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	31.71	22.19 (+9.52s \| 30.0%)	21.29 (+10.42s \| 32.9%)	21.29 (+10.42s \| 32.9%)	20.59 (+11.12s \| 35.1%)	20.09 (+11.62s \| 36.6%)	20.39 (+11.32s \| 35.7%)	30.49 (+1.22s \| 3.8%)
Free 100 Y	1:10.24	48.19 (+22.05s \| 31.4%)	46.39 (+23.85s \| 34.0%)	46.39 (+23.85s \| 34.0%)	45.09 (+25.15s \| 35.8%)	43.49 (+26.75s \| 38.1%)	44.39 (+25.85s \| 36.8%)	1:07.19 (+3.05s \| 4.3%)
Free 200 Y	2:35.17	1:45.79 (+49.38s \| 31.8%)	1:41.59 (+53.58s \| 34.5%)	1:41.59 (+53.58s \| 34.5%)	1:38.79 (+56.38s \| 36.3%)	1:36.49 (+58.68s \| 37.8%)	1:38.09 (+57.08s \| 36.8%)	2:24.99 (+10.18s \| 6.6%)
Free 500 Y	7:48.22	4:47.79 (+180.43s \| 38.5%)	4:37.09 (+191.13s \| 40.8%)	4:37.09 (+191.13s \| 40.8%)	4:29.49 (+198.73s \| 42.4%)	4:22.09 (+206.13s \| 44.0%)	4:27.69 (+200.53s \| 42.8%)	6:25.49 (+82.73s \| 17.7%)
Back 50 Y	36.98	N/A	N/A	N/A	N/A	N/A	N/A	36.29 (+0.69s \| 1.9%)
Back 100 Y	1:18.20	53.89 (+24.31s \| 31.1%)	51.49 (+26.71s \| 34.2%)	51.49 (+26.71s \| 34.2%)	49.39 (+28.81s \| 36.8%)	47.59 (+30.61s \| 39.1%)	48.89 (+29.31s \| 37.5%)	1:16.59 (+1.61s \| 2.1%)
Breast 50 Y	45.83	N/A	N/A	N/A	N/A	N/A	N/A	40.29 (+5.54s \| 12.1%)
Breast 100 Y	1:37.29	1:00.89 (+36.40s \| 37.4%)	57.99 (+39.30s \| 40.4%)	57.99 (+39.30s \| 40.4%)	55.89 (+41.40s \| 42.6%)	54.19 (+43.10s \| 44.3%)	55.29 (+42.00s \| 43.2%)	1:26.29 (+11.00s \| 11.3%)
Fly 50 Y	37.09	N/A	N/A	N/A	N/A	N/A	N/A	34.69 (+2.40s \| 6.5%)
Fly 100 Y	1:27.98	52.89 (+35.09s \| 39.9%)	50.59 (+37.39s \| 42.5%)	50.59 (+37.39s \| 42.5%)	48.99 (+38.99s \| 44.3%)	47.79 (+40.19s \| 45.7%)	48.39 (+39.59s \| 45.0%)	1:19.89 (+8.09s \| 9.2%)
IM 100 Y	1:24.13	N/A	N/A	N/A	N/A	N/A	N/A	1:16.99 (+7.14s \| 8.5%)
IM 200 Y	2:58.24	1:58.19 (+60.05s \| 33.7%)	1:53.89 (+64.35s \| 36.1%)	1:53.89 (+64.35s \| 36.1%)	1:50.09 (+68.15s \| 38.2%)	1:46.39 (+71.85s \| 40.3%)	1:48.89 (+69.35s \| 38.9%)	2:46.19 (+12.05s \| 6.8%)

Long Course Distance

Event	Best Time	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ	SouthWestern Age Group Regional

Progression

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

Event

Time

Progress

Standard

Next Standard

Age

Heat

Lane

Ranking

2026 PV SC 14 Under Championships Copied

03/12/2026

College Park

50 Y Back

36.98

-2.50s (New PB)

AA: 35.79 (+1.19s | 3.2%)

50 Y Free

31.74

+0.03s

A: 31.09 (+0.65s | 2.0%)

100 Y Free

1:10.24

-1.51s (New PB)

A: 1:09.79 (+0.45s | 0.6%)

50 Free

33.92

100 Free

36.32

1:10.24

100 Free

1:10.24

200 Y Free

2:37.89

+2.72s

A: 2:31.59 (+6.30s | 4.0%)

50 Free

35.82

100 Free

40.90

1:16.72

100 Free

1:16.72

150 Free

41.07

1:57.79

200 Free

40.10

2:37.89

100 Free

1:21.17

100 Y Back

1:18.20

-4.21s (New PB)

AA: 1:16.09 (+2.11s | 2.7%)

50 Back

38.01

100 Back

40.19

1:18.20

100 Back

1:18.20

2026 Machine Qualifier

02/20/2026

Springfield

100 Y Back

1:22.41

-7.20s (New PB)

A: 1:19.59 (+2.82s | 3.4%)

50 Back

40.58

100 Back

41.83

1:22.41

100 Back

1:22.41

100 Y Breast

1:37.29

-1.57s (New PB)

A: 1:30.59 (+6.70s | 6.9%)

50 Breast

45.86

100 Breast

51.43

1:37.29

100 Breast

1:37.29

100 Y IM

1:24.99

+0.86s

A: 1:19.69 (+5.30s | 6.2%)

50 IM

39.84

100 IM

45.15

1:24.99

100 IM

1:24.99

50 Y Breast

45.92

+0.09s

A: 42.09 (+3.83s | 8.3%)

200 Y IM

2:58.24

-4.59s (New PB)

A: 2:53.49 (+4.75s | 2.7%)

50 Fly

39.18

100 Back

45.22

1:24.40

100 IM

1:24.40

150 Breast

52.50

2:16.90

200 Free

41.34

2:58.24

100 IM

1:33.84

2026 DC Wave IMXperience Meet

01/10/2026

Washington

200 Y Free

2:35.17

-2.08s (New PB)

A: 2:31.59 (+3.58s | 2.3%)

50 Free

34.71

100 Free

39.21

1:13.92

100 Free

1:13.92

150 Free

41.05

1:54.97

200 Free

40.20

2:35.17

100 Free

1:21.25

2025 Katie Ledecky Invitational

12/11/2025

College Park

100 Y IM

1:24.14

+0.01s

A: 1:19.69 (+4.45s | 5.3%)

50 IM

38.51

100 IM

45.63

1:24.14

100 IM

1:24.14

100 Y Fly

1:27.98

-5.18s (New PB)

A: 1:24.39 (+3.59s | 4.1%)

50 Fly

40.20

100 Fly

47.78

1:27.98

100 Fly

1:27.98

2025 PV Turkey Claus Showdown

12/04/2025

College Park

50 Y Free

31.71

-1.60s (New PB)

A: 31.09 (+0.62s | 2.0%)

200 Y IM

3:04.94

+2.11s

A: 2:53.49 (+11.45s | 6.2%)

50 Fly

42.36

100 Back

49.19

1:31.55

100 IM

1:31.55

150 Breast

54.59

2:26.14

200 Free

38.80

3:04.94

100 IM

1:33.39

100 Y Breast

1:39.15

+0.29s

A: 1:30.59 (+8.56s | 8.6%)

50 Breast

47.34

100 Breast

51.81

1:39.15

100 Breast

1:39.15

50 Y Breast

45.83

-2.69s (New PB)

A: 42.09 (+3.74s | 8.2%)

100 Y Free

1:11.75

-1.93s (New PB)

A: 1:09.79 (+1.96s | 2.7%)

50 Free

34.74

100 Free

37.01

1:11.75

100 Free

1:11.75

50 Y Fly

37.09

A: 35.99 (+1.10s | 3.0%)

200 Y Free

2:37.25

-11.73s (New PB)

A: 2:31.59 (+5.66s | 3.6%)

50 Free

35.94

100 Free

39.37

1:15.31

100 Free

1:15.31

150 Free

42.11

1:57.42

200 Free

39.83

2:37.25

100 Free

1:21.94

50 Y Back

39.48

-1.03s (New PB)

A: 37.59 (+1.89s | 4.8%)

2025 PV November Open Franconia

11/14/2025

Alexandria

100 Y Free

1:16.89

+3.21s

A: 1:09.79 (+7.10s | 9.2%)

50 Free

37.61

100 Free

39.28

1:16.89

100 Free

1:16.89

100 Y IM

1:28.33

+4.20s

A: 1:19.69 (+8.64s | 9.8%)

50 IM

41.85

100 IM

46.48

1:28.33

100 IM

1:28.33

50 Y Back

40.51

A: 37.59 (+2.92s | 7.2%)

200 Y IM

3:05.65

+2.82s

A: 2:53.49 (+12.16s | 6.5%)

50 Fly

41.17

100 Back

48.42

1:29.59

100 IM

1:29.59

150 Breast

55.71

2:25.30

200 Free

40.35

3:05.65

100 IM

1:36.06

100 Y Back

1:31.30

+1.69s

BB: 1:30.09 (+1.21s | 1.3%)

50 Back

44.56

100 Back

46.74

1:31.30

100 Back

1:31.30

50 Y Free

34.39

+1.08s

A: 31.09 (+3.30s | 9.6%)

100 Y Breast

1:43.29

+4.43s

BB: 1:42.29 (+1.00s | 1.0%)

50 Breast

48.98

100 Breast

54.31

1:43.29

100 Breast

1:43.29

100 Y Fly

1:33.16

-4.51s (New PB)

A: 1:24.39 (+8.77s | 9.4%)

50 Fly

42.27

100 Fly

50.89

1:33.16

100 Fly

1:33.16

2025 NCAP Autumn Kingfish Splash

10/18/2025

Springfield

100 Y IM

1:24.13

A: 1:19.69 (+4.44s | 5.3%)

50 IM

39.66

100 IM

44.47

1:24.13

100 IM

1:24.13

50 Y Breast

48.52

BB: 47.69 (+0.83s | 1.7%)

100 Y Free

1:13.68

-2.52s (New PB)

A: 1:09.79 (+3.89s | 5.3%)

50 Free

36.12

100 Free

37.56

1:13.68

100 Free

1:13.68

100 Y Breast

1:43.69

+4.83s

BB: 1:42.29 (+1.40s | 1.4%)

50 Breast

49.77

100 Breast

53.92

1:43.69

100 Breast

1:43.69

50 Y Free

33.31

A: 31.09 (+2.22s | 6.7%)

100 Y Back

1:29.61

A: 1:19.59 (+10.02s | 11.2%)

50 Back

44.13

100 Back

45.48

1:29.61

100 Back

1:29.61

2025 Harvest Moon Invitational

10/04/2025

Herndon

100 Y Breast

1:38.86

A: 1:30.59 (+8.27s | 8.4%)

100 Y Free

1:16.20

A: 1:09.79 (+6.41s | 8.4%)

200 Y Free

2:48.98

A: 2:31.59 (+17.39s | 10.3%)

200 Y IM

3:02.83

-13.50s (New PB)

A: 2:53.49 (+9.34s | 5.1%)

100 Y Fly

1:37.67

A: 1:24.39 (+13.28s | 13.6%)

2025 Distance Run

09/27/2025

Springfield

200 Y IM

3:16.33

BB: 3:15.99 (+0.34s | 0.2%)

50 Fly

44.72

100 Back

50.91

1:35.63

100 IM

1:35.63

150 Breast

56.36

2:31.99

200 Free

44.33

3:16.32

100 IM

1:40.69

500 Y Free

7:48.22

BB: 7:33.79 (+14.43s | 3.1%)

50 Free

40.06

100 Free

47.94

1:28.00

100 Free

1:28.00

150 Free

49.15

2:17.15

200 Free

48.24

3:05.39

100 Free

1:37.39

250 Free

48.94

3:54.33

300 Free

48.26

4:42.59

100 Free

1:37.20

350 Free

47.69

5:30.28

400 Free

49.41

6:19.69

100 Free

1:37.10

450 Free

47.39

7:07.08

500 Free

41.14

7:48.22

100 Free

1:28.53

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	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ	SouthWestern Age Group Regional
Free 50 Y	31.71	22.19 (+9.52s \| 30.0%)	21.29 (+10.42s \| 32.9%)	21.29 (+10.42s \| 32.9%)	20.59 (+11.12s \| 35.1%)	20.09 (+11.62s \| 36.6%)	20.39 (+11.32s \| 35.7%)	30.49 (+1.22s \| 3.8%)
Free 100 Y	1:10.24	48.19 (+22.05s \| 31.4%)	46.39 (+23.85s \| 34.0%)	46.39 (+23.85s \| 34.0%)	45.09 (+25.15s \| 35.8%)	43.49 (+26.75s \| 38.1%)	44.39 (+25.85s \| 36.8%)	1:07.19 (+3.05s \| 4.3%)
Free 200 Y	2:35.17	1:45.79 (+49.38s \| 31.8%)	1:41.59 (+53.58s \| 34.5%)	1:41.59 (+53.58s \| 34.5%)	1:38.79 (+56.38s \| 36.3%)	1:36.49 (+58.68s \| 37.8%)	1:38.09 (+57.08s \| 36.8%)	2:24.99 (+10.18s \| 6.6%)
Free 500 Y	7:48.22	4:47.79 (+180.43s \| 38.5%)	4:37.09 (+191.13s \| 40.8%)	4:37.09 (+191.13s \| 40.8%)	4:29.49 (+198.73s \| 42.4%)	4:22.09 (+206.13s \| 44.0%)	4:27.69 (+200.53s \| 42.8%)	6:25.49 (+82.73s \| 17.7%)
Back 50 Y	36.98	N/A	N/A	N/A	N/A	N/A	N/A	36.29 (+0.69s \| 1.9%)
Back 100 Y	1:18.20	53.89 (+24.31s \| 31.1%)	51.49 (+26.71s \| 34.2%)	51.49 (+26.71s \| 34.2%)	49.39 (+28.81s \| 36.8%)	47.59 (+30.61s \| 39.1%)	48.89 (+29.31s \| 37.5%)	1:16.59 (+1.61s \| 2.1%)
Breast 50 Y	45.83	N/A	N/A	N/A	N/A	N/A	N/A	40.29 (+5.54s \| 12.1%)
Breast 100 Y	1:37.29	1:00.89 (+36.40s \| 37.4%)	57.99 (+39.30s \| 40.4%)	57.99 (+39.30s \| 40.4%)	55.89 (+41.40s \| 42.6%)	54.19 (+43.10s \| 44.3%)	55.29 (+42.00s \| 43.2%)	1:26.29 (+11.00s \| 11.3%)
Fly 50 Y	37.09	N/A	N/A	N/A	N/A	N/A	N/A	34.69 (+2.40s \| 6.5%)
Fly 100 Y	1:27.98	52.89 (+35.09s \| 39.9%)	50.59 (+37.39s \| 42.5%)	50.59 (+37.39s \| 42.5%)	48.99 (+38.99s \| 44.3%)	47.79 (+40.19s \| 45.7%)	48.39 (+39.59s \| 45.0%)	1:19.89 (+8.09s \| 9.2%)
IM 100 Y	1:24.13	N/A	N/A	N/A	N/A	N/A	N/A	1:16.99 (+7.14s \| 8.5%)
IM 200 Y	2:58.24	1:58.19 (+60.05s \| 33.7%)	1:53.89 (+64.35s \| 36.1%)	1:53.89 (+64.35s \| 36.1%)	1:50.09 (+68.15s \| 38.2%)	1:46.39 (+71.85s \| 40.3%)	1:48.89 (+69.35s \| 38.9%)	2:46.19 (+12.05s \| 6.8%)