Zaj Xiong

Age: 15 years old
Age Category: 15-16
Team: Wolverine Aquatics | Sierra Nevada Swimming

Personal Best

Short course distance

Event

Time

Age

Date

Standard

Next Standard

Sierra Nevada Swimming

Wolverine Aquatics

Free 50 Y

37.68

01/12/2019

B: 28.29 (+9.39s | 24.9%)

144

Free 100 Y

55.74

12/21/2024

A: 53.19 (+2.55s | 4.6%)

50 Free

27.24

100 Free

28.50

55.74

100 Free

55.74

Free 200 Y

2:04.52

03/22/2024

A: 1:56.59 (+7.93s | 6.4%)

50 Free

28.76

100 Free

31.26

1:00.02

100 Free

1:00.02

150 Free

32.40

1:32.42

200 Free

32.10

2:04.52

100 Free

1:04.50

Free 500 Y

5:04.27

11/07/2025

AA: 5:02.69 (+1.58s | 0.5%)

50 Free

27.87

100 Free

30.56

58.43

100 Free

58.43

150 Free

31.25

1:29.68

200 Free

30.97

2:00.65

100 Free

1:02.22

250 Free

31.21

2:31.86

300 Free

30.54

3:02.40

100 Free

1:01.75

350 Free

31.25

3:33.65

400 Free

30.79

4:04.44

100 Free

1:02.04

450 Free

30.63

4:35.07

500 Free

29.20

5:04.27

100 Free

59.83

Back 100 Y

1:04.91

11/09/2024

BB: 1:02.69 (+2.22s | 3.4%)

50 Back

31.11

100 Back

33.80

1:04.91

100 Back

1:04.91

Breast 100 Y

1:00.87

11/07/2025

AAA: 1:00.39 (+0.48s | 0.8%)

50 Breast

29.16

100 Breast

31.71

1:00.87

100 Breast

1:00.87

Breast 200 Y

2:09.27

11/07/2025

AAA

AAAA: 2:05.29 (+3.98s | 3.1%)

50 Breast

30.19

100 Breast

32.83

1:03.02

100 Breast

1:03.02

150 Breast

33.52

1:36.54

200 Breast

32.73

2:09.27

100 Breast

1:06.25

IM 200 Y

2:03.12

11/07/2025

AAA: 1:58.59 (+4.53s | 3.7%)

50 Fly

27.68

100 Back

31.94

59.62

100 IM

59.62

150 Breast

34.26

1:33.88

200 Free

29.24

2:03.12

100 IM

1:03.50

IM 400 Y

4:22.39

11/07/2025

AAA: 4:13.19 (+9.20s | 3.5%)

50 Fly

29.59

100 Fly

31.65

1:01.24

100 Fly

1:01.24

150 Back

34.59

1:35.83

200 Back

34.75

2:10.58

100 Back

1:09.34

250 Breast

35.31

2:45.89

300 Breast

35.18

3:21.07

100 Breast

1:10.49

350 Free

31.11

3:52.18

400 Free

30.21

4:22.39

100 Free

1:01.32

Long course distance

Event	Time	Age	Date	Standard	Next Standard	Sierra Nevada Swimming	Wolverine Aquatics
Free 100 M	1:05.98	13	06/27/2024	BB	A: 1:01.49 (+4.49s \| 6.8%)	53	5

Breast 100 M	1:19.48	13	06/27/2024	BB	A: 1:16.69 (+2.79s \| 3.5%)	19	1

Breast 200 M	2:49.58	13	06/27/2024	BB	A: 2:46.69 (+2.89s \| 1.7%)	13	1

Above are the fastest times that Zaj Xiong has achieved in his swimming career. For each event, you can find Zaj's best time, the corresponding time standard, as well as how much faster Zaj needs to be to reach the next level. The last columns provide Zaj rankings at the team and LSC levels. These rankings are based on the Zaj'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
Free 50 Y	37.68	22.19 (+15.49s \| 41.1%)	21.29 (+16.39s \| 43.5%)	21.29 (+16.39s \| 43.5%)	20.59 (+17.09s \| 45.4%)	20.09 (+17.59s \| 46.7%)	20.39 (+17.29s \| 45.9%)
Free 100 Y	55.74	48.19 (+7.55s \| 13.5%)	46.39 (+9.35s \| 16.8%)	46.39 (+9.35s \| 16.8%)	45.09 (+10.65s \| 19.1%)	43.49 (+12.25s \| 22.0%)	44.39 (+11.35s \| 20.4%)
Free 200 Y	2:04.52	1:45.79 (+18.73s \| 15.0%)	1:41.59 (+22.93s \| 18.4%)	1:41.59 (+22.93s \| 18.4%)	1:38.79 (+25.73s \| 20.7%)	1:36.49 (+28.03s \| 22.5%)	1:38.09 (+26.43s \| 21.2%)
Free 500 Y	5:04.27	4:47.79 (+16.48s \| 5.4%)	4:37.09 (+27.18s \| 8.9%)	4:37.09 (+27.18s \| 8.9%)	4:29.49 (+34.78s \| 11.4%)	4:22.09 (+42.18s \| 13.9%)	4:27.69 (+36.58s \| 12.0%)
Back 100 Y	1:04.91	53.89 (+11.02s \| 17.0%)	51.49 (+13.42s \| 20.7%)	51.49 (+13.42s \| 20.7%)	49.39 (+15.52s \| 23.9%)	47.59 (+17.32s \| 26.7%)	48.89 (+16.02s \| 24.7%)
Breast 100 Y	1:00.87	1:00.89	57.99 (+2.88s \| 4.7%)	57.99 (+2.88s \| 4.7%)	55.89 (+4.98s \| 8.2%)	54.19 (+6.68s \| 11.0%)	55.29 (+5.58s \| 9.2%)
Breast 200 Y	2:09.27	2:13.29	2:07.99 (+1.28s \| 1.0%)	2:07.99 (+1.28s \| 1.0%)	2:02.29 (+6.98s \| 5.4%)	1:58.79 (+10.48s \| 8.1%)	2:00.99 (+8.28s \| 6.4%)
IM 200 Y	2:03.12	1:58.19 (+4.93s \| 4.0%)	1:53.89 (+9.23s \| 7.5%)	1:53.89 (+9.23s \| 7.5%)	1:50.09 (+13.03s \| 10.6%)	1:46.39 (+16.73s \| 13.6%)	1:48.89 (+14.23s \| 11.6%)
IM 400 Y	4:22.39	4:14.69 (+7.70s \| 2.9%)	4:06.99 (+15.40s \| 5.9%)	4:06.99 (+15.40s \| 5.9%)	3:57.59 (+24.80s \| 9.5%)	3:48.79 (+33.60s \| 12.8%)	3:52.69 (+29.70s \| 11.3%)

Long Course Distance

Event	Best Time	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ
Free 100 M	1:05.98	56.09 (+9.89s \| 15.0%)	53.59 (+12.39s \| 18.8%)	53.59 (+12.39s \| 18.8%)	52.59 (+13.39s \| 20.3%)	50.99 (+14.99s \| 22.7%)	51.99 (+13.99s \| 21.2%)
Breast 100 M	1:19.48	1:11.29 (+8.19s \| 10.3%)	1:08.19 (+11.29s \| 14.2%)	1:08.19 (+11.29s \| 14.2%)	1:06.59 (+12.89s \| 16.2%)	1:04.09 (+15.39s \| 19.4%)	1:05.29 (+14.19s \| 17.9%)
Breast 200 M	2:49.58	2:35.79 (+13.79s \| 8.1%)	2:29.09 (+20.49s \| 12.1%)	2:29.09 (+20.49s \| 12.1%)	2:24.79 (+24.79s \| 14.6%)	2:19.69 (+29.89s \| 17.6%)	2:22.89 (+26.69s \| 15.7%)

Progression

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

Event

Time

Progress

Standard

Next Standard

Age

Heat

Lane

Ranking

Pleasanton Seahawks SC Senior 2

11/07/2025

Pleasanton

400 Y IM

4:22.39

-19.68s (New PB)

AAA: 4:13.19 (+9.20s | 3.5%)

50 Fly

29.59

100 Fly

31.65

1:01.24

100 Fly

1:01.24

150 Back

34.59

1:35.83

200 Back

34.75

2:10.58

100 Back

1:09.34

250 Breast

35.31

2:45.89

300 Breast

35.18

3:21.07

100 Breast

1:10.49

350 Free

31.11

3:52.18

400 Free

30.21

4:22.39

100 Free

1:01.32

500 Y Free

5:04.27

AA: 5:02.69 (+1.58s | 0.5%)

50 Free

27.87

100 Free

30.56

58.43

100 Free

58.43

150 Free

31.25

1:29.68

200 Free

30.97

2:00.65

100 Free

1:02.22

250 Free

31.21

2:31.86

300 Free

30.54

3:02.40

100 Free

1:01.75

350 Free

31.25

3:33.65

400 Free

30.79

4:04.44

100 Free

1:02.04

450 Free

30.63

4:35.07

500 Free

29.20

5:04.27

100 Free

59.83

200 Y IM

2:03.12

-9.16s (New PB)

AAA: 1:58.59 (+4.53s | 3.7%)

50 Fly

27.68

100 Back

31.94

59.62

100 IM

59.62

150 Breast

34.26

1:33.88

200 Free

29.24

2:03.12

100 IM

1:03.50

100 Y Breast

1:00.87

-4.23s (New PB)

AAA: 1:00.39 (+0.48s | 0.8%)

50 Breast

29.16

100 Breast

31.71

1:00.87

100 Breast

1:00.87

200 Y Breast

2:09.27

-7.45s (New PB)

AAA

AAAA: 2:05.29 (+3.98s | 3.1%)

50 Breast

30.19

100 Breast

32.83

1:03.02

100 Breast

1:03.02

150 Breast

33.52

1:36.54

200 Breast

32.73

2:09.27

100 Breast

1:06.25

2024 SI Winter Age Group Championships

12/21/2024

Oceanside

100 Y Free

55.74

-0.56s (New PB)

A: 55.69 (+0.05s | 0.1%)

50 Free

27.24

100 Free

28.50

55.74

100 Free

55.74

400 Y IM

4:42.07

-0.05s (New PB)

AA: 4:37.39 (+4.68s | 1.7%)

50 Fly

31.86

100 Fly

33.73

1:05.59

100 Fly

1:05.59

150 Back

37.91

1:43.50

200 Back

37.06

2:20.56

100 Back

1:14.97

250 Breast

38.99

2:59.55

300 Breast

37.30

3:36.85

100 Breast

1:16.29

350 Free

33.26

4:10.11

400 Free

31.96

4:42.07

100 Free

1:05.22

100 Y Breast

1:05.10

-0.40s (New PB)

AAA: 1:03.29 (+1.81s | 2.8%)

50 Breast

30.87

100 Breast

34.23

1:05.10

100 Breast

1:05.10

200 Y Breast

2:16.72

-1.38s (New PB)

AAA

AAAA: 2:11.19 (+5.53s | 4.0%)

50 Breast

31.65

100 Breast

34.11

1:05.76

100 Breast

1:05.76

150 Breast

35.30

1:41.06

200 Breast

35.66

2:16.72

100 Breast

1:10.96

200 Y IM

2:12.28

-0.62s (New PB)

AA: 2:09.79 (+2.49s | 1.9%)

50 Fly

29.88

100 Back

35.53

1:05.41

100 IM

1:05.41

150 Breast

35.95

1:41.36

200 Free

30.92

2:12.28

100 IM

1:06.87

Folsom Classic 2024

11/09/2024

Folsom

200 Y IM

2:12.90

-5.23s (New PB)

AA: 2:09.79 (+3.11s | 2.3%)

50 Fly

30.82

100 Back

35.01

1:05.83

100 IM

1:05.83

150 Breast

36.14

1:41.97

200 Free

30.93

2:12.90

100 IM

1:07.07

100 Y Back

1:04.91

A: 1:01.09 (+3.82s | 5.9%)

50 Back

31.11

100 Back

33.80

1:04.91

100 Back

1:04.91

100 Y Breast

1:05.50

-1.83s (New PB)

AAA: 1:03.29 (+2.21s | 3.4%)

50 Breast

31.11

100 Breast

34.39

1:05.50

100 Breast

1:05.50

100 Y Free

56.30

-2.04s (New PB)

A: 55.69 (+0.61s | 1.1%)

50 Free

27.30

100 Free

29.00

56.30

100 Free

56.30

400 Y IM

4:42.12

AA: 4:37.39 (+4.73s | 1.7%)

50 Fly

31.03

100 Fly

34.52

1:05.55

100 Fly

1:05.55

150 Back

38.39

1:43.94

200 Back

37.14

2:21.08

100 Back

1:15.53

250 Breast

38.18

2:59.26

300 Breast

37.76

3:37.02

100 Breast

1:15.94

350 Free

33.40

4:10.42

400 Free

31.70

4:42.12

100 Free

1:05.10

200 Y Breast

2:18.10

-4.74s (New PB)

AAA: 2:17.39 (+0.71s | 0.5%)

50 Breast

32.25

100 Breast

34.76

1:07.01

100 Breast

1:07.01

150 Breast

35.51

1:42.52

200 Breast

35.58

2:18.10

100 Breast

1:11.09

Arena Grand Challenge 2024

06/27/2024

Fresno

100 M Breast

1:19.48

AA: 1:16.99 (+2.49s | 3.1%)

100 M Free

1:05.98

A: 1:04.39 (+1.59s | 2.4%)

200 M Breast

2:49.58

AA: 2:46.59 (+2.99s | 1.8%)

Southwest Age Group Regional

03/22/2024

Fresno

200 Y Free

2:04.52

A: 2:02.19 (+2.33s | 1.9%)

50 Free

28.76

100 Free

31.26

1:00.02

100 Free

1:00.02

150 Free

32.40

1:32.42

200 Free

32.10

2:04.52

100 Free

1:04.50

100 Y Free

58.34

-27.25s (New PB)

A: 55.69 (+2.65s | 4.5%)

50 Free

28.08

100 Free

30.26

58.34

100 Free

58.34

200 Y Breast

2:22.84

AAA: 2:17.39 (+5.45s | 3.8%)

50 Breast

33.23

100 Breast

35.37

1:08.60

100 Breast

1:08.60

150 Breast

37.31

1:45.91

200 Breast

36.93

2:22.84

100 Breast

1:14.24

200 Y IM

2:18.13

-30.42s (New PB)

A: 2:15.39 (+2.74s | 2.0%)

50 Fly

30.94

100 Back

38.05

1:08.99

100 IM

1:08.99

150 Breast

36.70

1:45.69

200 Free

32.44

2:18.13

100 IM

1:09.14

100 Y Breast

1:07.33

-12.53s (New PB)

AA: 1:06.19 (+1.14s | 1.7%)

50 Breast

32.04

100 Breast

35.28

1:07.33

100 Breast

1:07.33

2021 Joyce Lanphere Invitational

11/06/2021

Palo Alto

200 Y IM

2:48.55

BB: 2:45.79 (+2.76s | 1.6%)

100 Y Breast

1:19.86

A: 1:18.39 (+1.47s | 1.8%)

2019 Tiger Aquatics Winter Classic

01/12/2019

Stockton

50 Y Free

37.68

BB: 34.59 (+3.09s | 8.2%)

25 Y Breast

20.89

50 Y Back

45.10

BB: 42.89 (+2.21s | 4.9%)

100 Y Free

1:25.59

BB: 1:18.89 (+6.70s | 7.8%)

25 Y Back

21.51

50 Y Breast

45.72

A: 42.09 (+3.63s | 7.9%)

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
Free 50 Y	37.68	22.19 (+15.49s \| 41.1%)	21.29 (+16.39s \| 43.5%)	21.29 (+16.39s \| 43.5%)	20.59 (+17.09s \| 45.4%)	20.09 (+17.59s \| 46.7%)	20.39 (+17.29s \| 45.9%)
Free 100 Y	55.74	48.19 (+7.55s \| 13.5%)	46.39 (+9.35s \| 16.8%)	46.39 (+9.35s \| 16.8%)	45.09 (+10.65s \| 19.1%)	43.49 (+12.25s \| 22.0%)	44.39 (+11.35s \| 20.4%)
Free 200 Y	2:04.52	1:45.79 (+18.73s \| 15.0%)	1:41.59 (+22.93s \| 18.4%)	1:41.59 (+22.93s \| 18.4%)	1:38.79 (+25.73s \| 20.7%)	1:36.49 (+28.03s \| 22.5%)	1:38.09 (+26.43s \| 21.2%)
Free 500 Y	5:04.27	4:47.79 (+16.48s \| 5.4%)	4:37.09 (+27.18s \| 8.9%)	4:37.09 (+27.18s \| 8.9%)	4:29.49 (+34.78s \| 11.4%)	4:22.09 (+42.18s \| 13.9%)	4:27.69 (+36.58s \| 12.0%)
Back 100 Y	1:04.91	53.89 (+11.02s \| 17.0%)	51.49 (+13.42s \| 20.7%)	51.49 (+13.42s \| 20.7%)	49.39 (+15.52s \| 23.9%)	47.59 (+17.32s \| 26.7%)	48.89 (+16.02s \| 24.7%)
Breast 100 Y	1:00.87	1:00.89	57.99 (+2.88s \| 4.7%)	57.99 (+2.88s \| 4.7%)	55.89 (+4.98s \| 8.2%)	54.19 (+6.68s \| 11.0%)	55.29 (+5.58s \| 9.2%)
Breast 200 Y	2:09.27	2:13.29	2:07.99 (+1.28s \| 1.0%)	2:07.99 (+1.28s \| 1.0%)	2:02.29 (+6.98s \| 5.4%)	1:58.79 (+10.48s \| 8.1%)	2:00.99 (+8.28s \| 6.4%)
IM 200 Y	2:03.12	1:58.19 (+4.93s \| 4.0%)	1:53.89 (+9.23s \| 7.5%)	1:53.89 (+9.23s \| 7.5%)	1:50.09 (+13.03s \| 10.6%)	1:46.39 (+16.73s \| 13.6%)	1:48.89 (+14.23s \| 11.6%)
IM 400 Y	4:22.39	4:14.69 (+7.70s \| 2.9%)	4:06.99 (+15.40s \| 5.9%)	4:06.99 (+15.40s \| 5.9%)	3:57.59 (+24.80s \| 9.5%)	3:48.79 (+33.60s \| 12.8%)	3:52.69 (+29.70s \| 11.3%)

Event	Best Time	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ
Free 100 M	1:05.98	56.09 (+9.89s \| 15.0%)	53.59 (+12.39s \| 18.8%)	53.59 (+12.39s \| 18.8%)	52.59 (+13.39s \| 20.3%)	50.99 (+14.99s \| 22.7%)	51.99 (+13.99s \| 21.2%)
Breast 100 M	1:19.48	1:11.29 (+8.19s \| 10.3%)	1:08.19 (+11.29s \| 14.2%)	1:08.19 (+11.29s \| 14.2%)	1:06.59 (+12.89s \| 16.2%)	1:04.09 (+15.39s \| 19.4%)	1:05.29 (+14.19s \| 17.9%)
Breast 200 M	2:49.58	2:35.79 (+13.79s \| 8.1%)	2:29.09 (+20.49s \| 12.1%)	2:29.09 (+20.49s \| 12.1%)	2:24.79 (+24.79s \| 14.6%)	2:19.69 (+29.89s \| 17.6%)	2:22.89 (+26.69s \| 15.7%)