Isaac Xu

Age: 16 years old
Age Category: 15-16
Team: Mecklenburg Swim Association | North Carolina Swimming

Personal Best

Short course distance

Event

Time

Age

Date

Standard

Next Standard

Mecklenburg Swim Association

North Carolina Swimming

Southern Zone

USA

Free 50 Y

28.15

16

12/12/2025

B

BB: 26.29 (+1.86s | 6.6%)

54

534

1,000+

Free 100 Y

1:02.06

Analysis

16

03/07/2026

B: 1:01.99 (+0.07s | 0.1%)

59

534

1,000+

50 Free

29.61

100 Free

32.45

1:02.06

100 Free

1:02.06

Back 50 Y

32.07

16

11/07/2025

14

170

958

1,000+

Back 100 Y

1:10.01

Analysis

16

12/12/2025

B: 1:07.49 (+2.52s | 3.6%)

41

431

1,000+

50 Back

33.28

100 Back

36.73

1:10.01

100 Back

1:10.01

Breast 100 Y

1:14.49

Analysis

16

12/12/2025

B

BB: 1:11.39 (+3.10s | 4.2%)

33

341

1,000+

50 Breast

34.29

100 Breast

40.20

1:14.49

100 Breast

1:14.49

Breast 200 Y

2:54.28

Analysis

16

11/07/2025

B: 2:47.09 (+7.19s | 4.1%)

23

303

1,000+

50 Breast

38.04

100 Breast

44.83

1:22.87

100 Breast

1:22.87

150 Breast

46.12

2:08.99

200 Breast

45.29

2:54.28

100 Breast

1:31.41

Fly 50 Y

29.53

16

11/07/2025

8

146

1,000+

IM 200 Y

2:31.30

Analysis

16

03/07/2026

B: 2:30.89 (+0.41s | 0.3%)

42

418

1,000+

50 Fly

32.82

100 Back

39.67

1:12.49

100 IM

1:12.49

150 Breast

43.46

1:55.95

200 Free

35.35

2:31.30

100 IM

1:18.81

Long course distance

Event	Time		Age	Date	Standard	Next Standard	Mecklenburg Swim Association	North Carolina Swimming	Southern Zone	USA

Above are the fastest times that Isaac Xu has achieved in his swimming career. For each event, you can find Isaac's best time, the corresponding time standard, as well as how much faster Isaac needs to be to reach the next level. The last columns provide Isaac rankings at the team and LSC levels. These rankings are based on the Isaac'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	28.15	22.19 (+5.96s \| 21.2%)	21.29 (+6.86s \| 24.4%)	21.29 (+6.86s \| 24.4%)	20.59 (+7.56s \| 26.9%)	20.09 (+8.06s \| 28.6%)	20.39 (+7.76s \| 27.6%)
Free 100 Y	1:02.06	48.19 (+13.87s \| 22.3%)	46.39 (+15.67s \| 25.2%)	46.39 (+15.67s \| 25.2%)	45.09 (+16.97s \| 27.3%)	43.49 (+18.57s \| 29.9%)	44.39 (+17.67s \| 28.5%)
Back 50 Y	32.07	N/A	N/A	N/A	N/A	N/A	N/A
Back 100 Y	1:10.01	53.89 (+16.12s \| 23.0%)	51.49 (+18.52s \| 26.5%)	51.49 (+18.52s \| 26.5%)	49.39 (+20.62s \| 29.5%)	47.59 (+22.42s \| 32.0%)	48.89 (+21.12s \| 30.2%)
Breast 100 Y	1:14.49	1:00.89 (+13.60s \| 18.3%)	57.99 (+16.50s \| 22.2%)	57.99 (+16.50s \| 22.2%)	55.89 (+18.60s \| 25.0%)	54.19 (+20.30s \| 27.3%)	55.29 (+19.20s \| 25.8%)
Breast 200 Y	2:54.28	2:13.29 (+40.99s \| 23.5%)	2:07.99 (+46.29s \| 26.6%)	2:07.99 (+46.29s \| 26.6%)	2:02.29 (+51.99s \| 29.8%)	1:58.79 (+55.49s \| 31.8%)	2:00.99 (+53.29s \| 30.6%)
Fly 50 Y	29.53	N/A	N/A	N/A	N/A	N/A	N/A
IM 200 Y	2:31.30	1:58.19 (+33.11s \| 21.9%)	1:53.89 (+37.41s \| 24.7%)	1:53.89 (+37.41s \| 24.7%)	1:50.09 (+41.21s \| 27.2%)	1:46.39 (+44.91s \| 29.7%)	1:48.89 (+42.41s \| 28.0%)

Long Course Distance

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

Progression

See how Isaac Xu is improving gradually by choosing the distance and the stroke you are interested in. You can also compare the Isaac's time to another swimmer's and even view their profile for more information about them.

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Compare with another swimmer

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Meets

See all the meets Isaac Xu has participated in and his achievement. The last event displayed is the most recent. For each event, you can find the Isaac's time, the progress against Isaac's best time, the corresponding time standard, as well as how much faster Isaac needs to be to reach the next level.

Event

Time

Progress

Standard

Next Standard

Age

Heat

Lane

Ranking

2026 MSA March Madness Invitational

03/07/2026

Charlotte

100 Y Breast

1:15.20

+0.71s

B

BB: 1:11.39 (+3.81s | 5.1%)

16

4

1

6

50 Breast

35.25

100 Breast

39.95

1:15.20

100 Breast

1:15.20

200 Y IM

2:31.30

-3.26s (New PB)

B: 2:30.89 (+0.41s | 0.3%)

16

3

2

1

50 Fly

32.82

100 Back

39.67

1:12.49

100 IM

1:12.49

150 Breast

43.46

1:55.95

200 Free

35.35

2:31.30

100 IM

1:18.81

100 Y Free

1:02.06

-0.43s (New PB)

B: 1:01.99 (+0.07s | 0.1%)

16

2

4

50 Free

29.61

100 Free

32.45

1:02.06

100 Free

1:02.06

2025 NC QCD Holiday Invite

12/12/2025

Charlotte

100 Y Back

1:10.01

B: 1:07.49 (+2.52s | 3.6%)

15

50 Back

33.28

100 Back

36.73

1:10.01

100 Back

1:10.01

100 Y Breast

1:14.49

B

BB: 1:11.39 (+3.10s | 4.2%)

15

50 Breast

34.29

100 Breast

40.20

1:14.49

100 Breast

1:14.49

50 Y Free

28.15

B

BB: 26.29 (+1.86s | 6.6%)

15

100 Y Free

1:02.49

-0.18s (New PB)

B: 1:01.99 (+0.50s | 0.8%)

15

50 Free

29.02

100 Free

33.47

1:02.49

100 Free

1:02.49

200 Y IM

2:34.56

B: 2:30.89 (+3.67s | 2.4%)

15

50 Fly

31.99

100 Back

41.59

1:13.58

100 IM

1:13.58

150 Breast

43.17

1:56.75

200 Free

37.81

2:34.56

100 IM

1:20.98

2025 Veterans Day Inv Presented By Arena

11/07/2025

Charlotte

100 Y Free

1:02.67

B: 1:01.99 (+0.68s | 1.1%)

15

5

8

50 Free

29.96

100 Free

32.71

1:02.67

100 Free

1:02.67

50 Y Back

32.07

15

2

5

2

50 Y Fly

29.53

15

5

3

6

200 Y Breast

2:54.28

B: 2:47.09 (+7.19s | 4.1%)

15

3

8

1

50 Breast

38.04

100 Breast

44.83

1:22.87

100 Breast

1:22.87

150 Breast

46.12

2:08.99

200 Breast

45.29

2:54.28

100 Breast

1:31.41