Brian Guo

Age: 11 years old
Age Category: 11-12
Team: Long Island Aquatic Club | Metropolitan Swimming

Personal Best

Short course distance

Event

Time

Age

Date

Standard

Next Standard

Metropolitan Swimming

Long Island Aquatic Club

Free 100 Y

1:12.19

10

03/21/2024

B: 1:11.49 (+0.70s | 1.0%)

22

13

50 Free

34.96

100 Free

37.23

1:12.19

100 Free

1:12.19

Free 200 Y

2:37.59

10

03/21/2024

B: 2:35.99 (+1.60s | 1.0%)

17

11

50 Free

36.62

100 Free

40.50

1:17.12

100 Free

1:17.12

150 Free

40.57

1:57.69

200 Free

39.90

2:37.59

100 Free

1:20.47

Back 100 Y

1:22.85

10

03/21/2024

B: 1:22.19 (+0.66s | 0.8%)

18

12

50 Back

40.09

100 Back

42.76

1:22.85

100 Back

1:22.85

Breast 50 Y

46.35

10

03/21/2024

B: 43.49 (+2.86s | 6.2%)

25

14

Breast 100 Y

1:38.97

10

03/21/2024

B: 1:32.59 (+6.38s | 6.4%)

21

12

50 Breast

46.20

100 Breast

52.77

1:38.97

100 Breast

1:38.97

Fly 50 Y

30.46

11

11/07/2025

A

AA: 29.69 (+0.77s | 2.5%)

5

Fly 100 Y

1:08.15

11

11/07/2025

A

AA: 1:05.89 (+2.26s | 3.3%)

4

3

50 Fly

32.87

100 Fly

35.28

1:08.15

100 Fly

1:08.15

Fly 200 Y

2:33.83

11

11/07/2025

BB

A: 2:31.39 (+2.44s | 1.6%)

3

50 Fly

34.15

100 Fly

39.25

1:13.40

100 Fly

1:13.40

150 Fly

40.28

1:53.68

200 Fly

40.15

2:33.83

100 Fly

1:20.43

IM 100 Y

1:12.15

11

11/07/2025

BB

A: 1:09.99 (+2.16s | 3.0%)

7

6

50 IM

34.46

100 IM

37.69

1:12.15

100 IM

1:12.15

IM 200 Y

2:29.90

11

11/07/2025

A

AA: 2:25.59 (+4.31s | 2.9%)

5

50 Fly

31.74

100 Back

38.42

1:10.16

100 IM

1:10.16

150 Breast

45.73

1:55.89

200 Free

34.01

2:29.90

100 IM

1:19.74

Long course distance

Event	Time		Age	Date	Standard	Next Standard	Metropolitan Swimming	Long Island Aquatic Club

Above are the fastest times that Brian Guo has achieved in his swimming career. For each event, you can find Brian's best time, the corresponding time standard, as well as how much faster Brian needs to be to reach the next level. The last columns provide Brian rankings at the team and LSC levels. These rankings are based on the Brian'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 100 Y	1:12.19	48.19 (+24.00s \| 33.2%)	46.39 (+25.80s \| 35.7%)	46.39 (+25.80s \| 35.7%)	45.09 (+27.10s \| 37.5%)	43.49 (+28.70s \| 39.8%)	44.39 (+27.80s \| 38.5%)	1:03.09 (+9.10s \| 12.6%)
Free 200 Y	2:37.59	1:45.79 (+51.80s \| 32.9%)	1:41.59 (+56.00s \| 35.5%)	1:41.59 (+56.00s \| 35.5%)	1:38.79 (+58.80s \| 37.3%)	1:36.49 (+61.10s \| 38.8%)	1:38.09 (+59.50s \| 37.8%)	2:17.79 (+19.80s \| 12.6%)
Back 100 Y	1:22.85	53.89 (+28.96s \| 35.0%)	51.49 (+31.36s \| 37.9%)	51.49 (+31.36s \| 37.9%)	49.39 (+33.46s \| 40.4%)	47.59 (+35.26s \| 42.6%)	48.89 (+33.96s \| 41.0%)	1:12.29 (+10.56s \| 12.7%)
Breast 50 Y	46.35	N/A	N/A	N/A	N/A	N/A	N/A	37.99 (+8.36s \| 18.0%)
Breast 100 Y	1:38.97	1:00.89 (+38.08s \| 38.5%)	57.99 (+40.98s \| 41.4%)	57.99 (+40.98s \| 41.4%)	55.89 (+43.08s \| 43.5%)	54.19 (+44.78s \| 45.2%)	55.29 (+43.68s \| 44.1%)	1:21.69 (+17.28s \| 17.5%)
Fly 50 Y	30.46	N/A	N/A	N/A	N/A	N/A	N/A	32.69 30.49
Fly 100 Y	1:08.15	52.89 (+15.26s \| 22.4%)	50.59 (+17.56s \| 25.8%)	50.59 (+17.56s \| 25.8%)	48.99 (+19.16s \| 28.1%)	47.79 (+20.36s \| 29.9%)	48.39 (+19.76s \| 29.0%)	1:11.99 1:07.09 (+1.06s \| 1.6%)
Fly 200 Y	2:33.83	1:58.89 (+34.94s \| 22.7%)	1:53.69 (+40.14s \| 26.1%)	1:53.69 (+40.14s \| 26.1%)	1:49.59 (+44.24s \| 28.8%)	1:45.99 (+47.84s \| 31.1%)	1:47.89 (+45.94s \| 29.9%)	2:38.29 2:26.29 (+7.54s \| 4.9%)
IM 100 Y	1:12.15	N/A	N/A	N/A	N/A	N/A	N/A	1:12.79 1:08.09 (+4.06s \| 5.6%)
IM 200 Y	2:29.90	1:58.19 (+31.71s \| 21.2%)	1:53.89 (+36.01s \| 24.0%)	1:53.89 (+36.01s \| 24.0%)	1:50.09 (+39.81s \| 26.6%)	1:46.39 (+43.51s \| 29.0%)	1:48.89 (+41.01s \| 27.4%)	2:37.09 2:27.09 (+2.81s \| 1.9%)

Long Course Distance

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

Progression

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

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View this profile

Meets

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

Event

Time

Progress

Standard

Next Standard

Age

Heat

Lane

Ranking

2025 Mid Atlantic AG Championship Showdown

11/07/2025

Richmond

100 Y Fly

1:08.15

-11.45s (New PB)

A

AA: 1:05.89 (+2.26s | 3.3%)

11

2

7

50 Fly

32.87

100 Fly

35.28

1:08.15

100 Fly

1:08.15

100 Y IM

1:12.15

-11.61s (New PB)

BB

A: 1:09.99 (+2.16s | 3.0%)

11

1

6

50 IM

34.46

100 IM

37.69

1:12.15

100 IM

1:12.15

50 Y Fly

30.46

-4.58s (New PB)

A

AA: 29.69 (+0.77s | 2.5%)

11

2

7

200 Y Fly

2:33.83

BB

A: 2:31.39 (+2.44s | 1.6%)

11

1

4

50 Fly

34.15

100 Fly

39.25

1:13.40

100 Fly

1:13.40

150 Fly

40.28

1:53.68

200 Fly

40.15

2:33.83

100 Fly

1:20.43

200 Y IM

2:29.90

-23.78s (New PB)

A

AA: 2:25.59 (+4.31s | 2.9%)

11

2

7

50 Fly

31.74

100 Back

38.42

1:10.16

100 IM

1:10.16

150 Breast

45.73

1:55.89

200 Free

34.01

2:29.90

100 IM

1:19.74

2024 SwimRVA Shamrock Showdown

03/21/2024

Richmond

50 Y Fly

35.04

A

AA: 34.29 (+0.75s | 2.1%)

10

100 Y Fly

1:19.60

A

AA: 1:19.49 (+0.11s | 0.1%)

10

1

7

8

50 Fly

35.31

100 Fly

44.29

1:19.60

100 Fly

1:19.60

100 Y IM

1:23.76

BB

A: 1:19.69 (+4.07s | 4.9%)

10

50 IM

37.79

100 IM

45.97

1:23.76

100 IM

1:23.76

200 Y IM

2:53.68

BB

A: 2:53.49 (+0.19s | 0.1%)

10

4

2

9

50 Fly

36.56

100 Back

42.70

1:19.26

100 IM

1:19.26

150 Breast

55.12

2:14.38

200 Free

39.30

2:53.68

100 IM

1:34.42

100 Y Breast

1:38.97

BB

A: 1:30.59 (+8.38s | 8.5%)

10

50 Breast

46.20

100 Breast

52.77

1:38.97

100 Breast

1:38.97

100 Y Back

1:22.85

BB

A: 1:19.59 (+3.26s | 3.9%)

10

50 Back

40.09

100 Back

42.76

1:22.85

100 Back

1:22.85

50 Y Breast

46.35

BB

A: 42.09 (+4.26s | 9.2%)

10

100 Y Free

1:12.19

BB

A: 1:09.79 (+2.40s | 3.3%)

10

50 Free

34.96

100 Free

37.23

1:12.19

100 Free

1:12.19

200 Y Free

2:37.59

BB

A: 2:31.59 (+6.00s | 3.8%)

10

1

4

9

50 Free

36.62

100 Free

40.50

1:17.12

100 Free

1:17.12

150 Free

40.57

1:57.69

200 Free

39.90

2:37.59

100 Free

1:20.47

Event	Best Time	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ	SouthWestern Age Group Regional
Free 100 Y	1:12.19	48.19 (+24.00s \| 33.2%)	46.39 (+25.80s \| 35.7%)	46.39 (+25.80s \| 35.7%)	45.09 (+27.10s \| 37.5%)	43.49 (+28.70s \| 39.8%)	44.39 (+27.80s \| 38.5%)	1:03.09 (+9.10s \| 12.6%)
Free 200 Y	2:37.59	1:45.79 (+51.80s \| 32.9%)	1:41.59 (+56.00s \| 35.5%)	1:41.59 (+56.00s \| 35.5%)	1:38.79 (+58.80s \| 37.3%)	1:36.49 (+61.10s \| 38.8%)	1:38.09 (+59.50s \| 37.8%)	2:17.79 (+19.80s \| 12.6%)
Back 100 Y	1:22.85	53.89 (+28.96s \| 35.0%)	51.49 (+31.36s \| 37.9%)	51.49 (+31.36s \| 37.9%)	49.39 (+33.46s \| 40.4%)	47.59 (+35.26s \| 42.6%)	48.89 (+33.96s \| 41.0%)	1:12.29 (+10.56s \| 12.7%)
Breast 50 Y	46.35	N/A	N/A	N/A	N/A	N/A	N/A	37.99 (+8.36s \| 18.0%)
Breast 100 Y	1:38.97	1:00.89 (+38.08s \| 38.5%)	57.99 (+40.98s \| 41.4%)	57.99 (+40.98s \| 41.4%)	55.89 (+43.08s \| 43.5%)	54.19 (+44.78s \| 45.2%)	55.29 (+43.68s \| 44.1%)	1:21.69 (+17.28s \| 17.5%)
Fly 50 Y	30.46	N/A	N/A	N/A	N/A	N/A	N/A	32.69 30.49
Fly 100 Y	1:08.15	52.89 (+15.26s \| 22.4%)	50.59 (+17.56s \| 25.8%)	50.59 (+17.56s \| 25.8%)	48.99 (+19.16s \| 28.1%)	47.79 (+20.36s \| 29.9%)	48.39 (+19.76s \| 29.0%)	1:11.99 1:07.09 (+1.06s \| 1.6%)
Fly 200 Y	2:33.83	1:58.89 (+34.94s \| 22.7%)	1:53.69 (+40.14s \| 26.1%)	1:53.69 (+40.14s \| 26.1%)	1:49.59 (+44.24s \| 28.8%)	1:45.99 (+47.84s \| 31.1%)	1:47.89 (+45.94s \| 29.9%)	2:38.29 2:26.29 (+7.54s \| 4.9%)
IM 100 Y	1:12.15	N/A	N/A	N/A	N/A	N/A	N/A	1:12.79 1:08.09 (+4.06s \| 5.6%)
IM 200 Y	2:29.90	1:58.19 (+31.71s \| 21.2%)	1:53.89 (+36.01s \| 24.0%)	1:53.89 (+36.01s \| 24.0%)	1:50.09 (+39.81s \| 26.6%)	1:46.39 (+43.51s \| 29.0%)	1:48.89 (+41.01s \| 27.4%)	2:37.09 2:27.09 (+2.81s \| 1.9%)