Brian Koo

Age: 15 years old
Age Category: 15-16
Team: Rainbow Aquatics | Hawaiian Swimming

Personal Best

Short course distance

Event

Time

Age

Date

Standard

Next Standard

Rainbow Aquatics

Hawaiian Swimming

Western Zone

USA

Free 50 Y

27.13

15

01/17/2026

B

BB: 26.29 (+0.84s | 3.1%)

Rankings

Free 100 Y

56.66

Analysis

15

01/10/2026

BB

A: 53.19 (+3.47s | 6.1%)

Rankings

Free 200 Y

2:04.26

Analysis

15

01/17/2026

BB

A: 1:56.59 (+7.67s | 6.2%)

Rankings

50 Free

28.49

100 Free

31.20

59.69

100 Free

59.69

150 Free

33.13

1:32.82

200 Free

31.44

2:04.26

100 Free

1:04.57

Free 500 Y

5:38.21

Analysis

15

01/10/2026

BB

A: 5:15.79 (+22.42s | 6.6%)

Rankings

50 Free

29.59

100 Free

32.16

1:01.75

100 Free

1:01.75

150 Free

33.85

1:35.60

200 Free

34.09

2:09.69

100 Free

1:07.94

250 Free

34.39

2:44.08

300 Free

35.21

3:19.29

100 Free

1:09.60

350 Free

35.42

3:54.71

400 Free

35.36

4:30.07

100 Free

1:10.78

450 Free

34.84

5:04.91

500 Free

33.30

5:38.21

100 Free

1:08.14

Back 100 Y

1:14.13

Analysis

15

10/19/2025

B: 1:07.49 (+6.64s | 9.0%)

Rankings

Breast 100 Y

1:17.91

Analysis

15

09/13/2026

B: 1:16.89 (+1.02s | 1.3%)

Rankings

Breast 200 Y

3:03.91

Analysis

15

10/02/2026

B: 2:47.09 (+16.82s | 9.1%)

Rankings

50 Breast

41.86

100 Breast

46.87

1:28.73

100 Breast

1:28.73

150 Breast

49.41

2:18.14

200 Breast

45.77

3:03.91

100 Breast

1:35.18

Fly 100 Y

1:01.78

Analysis

15

10/02/2026

BB

A: 57.59 (+4.19s | 6.8%)

Rankings

50 Fly

28.99

100 Fly

32.79

1:01.78

100 Fly

1:01.78

IM 200 Y

2:35.97

Analysis

15

10/02/2026

B: 2:30.89 (+5.08s | 3.3%)

Rankings

50 Fly

30.35

100 Back

40.92

1:11.27

100 IM

1:11.27

150 Breast

50.66

2:01.93

200 Free

34.04

2:35.97

100 IM

1:24.70

Long course distance

Event	Time		Age	Date	Standard	Next Standard	Rainbow Aquatics	Hawaiian Swimming	Western Zone	USA

Above are the fastest times that Brian Koo 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
Got the Bonus time standard (extra events for qualified swimmers)

Short Course Distance

Event	Best Time	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ
Free 50 Y	27.13	22.19 (+4.94s \| 18.2%) 22.79 (+4.34s \| 16.0%)	21.29 (+5.84s \| 21.5%)	21.29 (+5.84s \| 21.5%)	20.49 (+6.64s \| 24.5%)	19.69 (+7.44s \| 27.4%)	20.39 (+6.74s \| 24.8%)
Free 100 Y	56.66	48.19 (+8.47s \| 14.9%) 49.49 (+7.17s \| 12.7%)	46.39 (+10.27s \| 18.1%)	46.39 (+10.27s \| 18.1%)	44.89 (+11.77s \| 20.8%)	43.09 (+13.57s \| 23.9%)	44.39 (+12.27s \| 21.7%)
Free 200 Y	2:04.26	1:45.79 (+18.47s \| 14.9%) 1:48.79 (+15.47s \| 12.4%)	1:41.59 (+22.67s \| 18.2%)	1:41.59 (+22.67s \| 18.2%)	1:38.39 (+25.87s \| 20.8%)	1:34.99 (+29.27s \| 23.6%)	1:38.09 (+26.17s \| 21.1%)
Free 500 Y	5:38.21	4:47.79 (+50.42s \| 14.9%) 4:55.99 (+42.22s \| 12.5%)	4:37.09 (+61.12s \| 18.1%)	4:37.09 (+61.12s \| 18.1%)	4:28.79 (+69.42s \| 20.5%)	4:19.89 (+78.32s \| 23.2%)	4:27.69 (+70.52s \| 20.9%)
Back 100 Y	1:14.13	53.89 (+20.24s \| 27.3%) 55.39 (+18.74s \| 25.3%)	51.49 (+22.64s \| 30.5%)	51.49 (+22.64s \| 30.5%)	49.19 (+24.94s \| 33.6%)	46.99 (+27.14s \| 36.6%)	48.89 (+25.24s \| 34.0%)
Breast 100 Y	1:17.91	1:00.89 (+17.02s \| 21.8%) 1:02.59 (+15.32s \| 19.7%)	57.99 (+19.92s \| 25.6%)	57.99 (+19.92s \| 25.6%)	55.49 (+22.42s \| 28.8%)	53.29 (+24.62s \| 31.6%)	55.29 (+22.62s \| 29.0%)
Breast 200 Y	3:03.91	2:13.29 (+50.62s \| 27.5%) 2:17.09 (+46.82s \| 25.5%)	2:07.99 (+55.92s \| 30.4%)	2:07.99 (+55.92s \| 30.4%)	2:01.59 (+62.32s \| 33.9%)	1:56.39 (+67.52s \| 36.7%)	2:00.99 (+62.92s \| 34.2%)
Fly 100 Y	1:01.78	52.89 (+8.89s \| 14.4%) 54.39 (+7.39s \| 12.0%)	50.59 (+11.19s \| 18.1%)	50.59 (+11.19s \| 18.1%)	48.69 (+13.09s \| 21.2%)	46.69 (+15.09s \| 24.4%)	48.39 (+13.39s \| 21.7%)
IM 200 Y	2:35.97	1:58.19 (+37.78s \| 24.2%) 2:01.59 (+34.38s \| 22.0%)	1:53.89 (+42.08s \| 27.0%)	1:53.89 (+42.08s \| 27.0%)	1:49.59 (+46.38s \| 29.7%)	1:45.39 (+50.58s \| 32.4%)	1:48.89 (+47.08s \| 30.2%)

Long Course Distance

Event	Best Time	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ	U.S. Olympic Team Trials

Progression

See how Brian Koo 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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Meets

See all the meets Brian Koo 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

2026 HI Al Minn Invitational

10/02/2026

Kailua

200 Y IM

2:35.97

B: 2:30.89 (+5.08s | 3.3%)

16

1

6

5

50 Fly

30.35

100 Back

40.92

1:11.27

100 IM

1:11.27

150 Breast

50.66

2:01.93

200 Free

34.04

2:35.97

100 IM

1:24.70

200 Y Breast

3:03.91

B: 2:47.09 (+16.82s | 9.1%)

16

1

7

1

50 Breast

41.86

100 Breast

46.87

1:28.73

100 Breast

1:28.73

150 Breast

49.41

2:18.14

200 Breast

45.77

3:03.91

100 Breast

1:35.18

100 Y Fly

1:01.78

-0.52s (New PB)

BB

A: 57.59 (+4.19s | 6.8%)

16

1

5

8

50 Fly

28.99

100 Fly

32.79

1:01.78

100 Fly

1:01.78

PCA ABC Kalani SCY Meet

09/13/2026

Honolulu

100 Y Breast

1:17.91

-3.32s (New PB)

B: 1:16.89 (+1.02s | 1.3%)

16

3

2

200 Y Free

2:12.05

+7.79s

B

BB: 2:06.29 (+5.76s | 4.4%)

16

1

4

1

100 Y Fly

1:04.43

+2.13s

B

BB: 1:02.39 (+2.04s | 3.2%)

16

2

4

1

100 Y Free

1:06.27

+9.61s

B: 1:01.99 (+4.28s | 6.5%)

16

4

5

2

2026 OIA Eastern Division Swimming Diving

01/17/2026

Waipahu

500 Y Free

5:40.18

+1.97s

BB

A: 5:15.79 (+24.39s | 7.2%)

15

2

1

7

50 Free

29.45

100 Free

32.53

1:01.98

100 Free

1:01.98

150 Free

33.89

1:35.87

200 Free

34.76

2:10.63

100 Free

1:08.65

250 Free

35.48

2:46.11

300 Free

34.36

3:20.47

100 Free

1:09.84

350 Free

35.86

3:56.33

400 Free

35.51

4:31.84

100 Free

1:11.37

450 Free

36.19

5:08.03

500 Free

32.14

5:40.18

100 Free

1:08.34

200 Y Free

2:04.26

BB

A: 1:56.59 (+7.67s | 6.2%)

15

2

3

6

50 Free

28.49

100 Free

31.20

59.69

100 Free

59.69

150 Free

33.13

1:32.82

200 Free

31.44

2:04.26

100 Free

1:04.57

50 Y Free

27.13

B

BB: 26.29 (+0.84s | 3.1%)

15

2026 OIA JUNIOR VARSITY SWIMMING DIVING

01/10/2026

Waipahu

100 Y Fly

1:02.30

-5.20s (New PB)

BB

A: 1:00.39 (+1.91s | 3.1%)

14

2

7

4

50 Fly

28.60

100 Fly

33.70

1:02.30

100 Fly

1:02.30

500 Y Free

5:38.21

BB

A: 5:30.59 (+7.62s | 2.3%)

14

1

3

4

50 Free

29.59

100 Free

32.16

1:01.75

100 Free

1:01.75

150 Free

33.85

1:35.60

200 Free

34.09

2:09.69

100 Free

1:07.94

250 Free

34.39

2:44.08

300 Free

35.21

3:19.29

100 Free

1:09.60

350 Free

35.42

3:54.71

400 Free

35.36

4:30.07

100 Free

1:10.78

450 Free

34.84

5:04.91

500 Free

33.30

5:38.21

100 Free

1:08.14

100 Y Free

56.66

-3.49s (New PB)

BB

A: 55.69 (+0.97s | 1.7%)

14

Aulea Fall Frenzy Meet

10/19/2025

Kailua

100 Y Free

1:00.15

B

BB: 57.59 (+2.56s | 4.3%)

15

6

2

100 Y Breast

1:21.23

B: 1:16.89 (+4.34s | 5.3%)

15

5

8

3

100 Y Back

1:14.13

B: 1:07.49 (+6.64s | 9.0%)

15

1

3

4

100 Y Fly

1:07.50

B: 1:07.19 (+0.31s | 0.5%)

15

2

5

1

Event	Best Time	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ
Free 50 Y	27.13	22.19 (+4.94s \| 18.2%) 22.79 (+4.34s \| 16.0%)	21.29 (+5.84s \| 21.5%)	21.29 (+5.84s \| 21.5%)	20.49 (+6.64s \| 24.5%)	19.69 (+7.44s \| 27.4%)	20.39 (+6.74s \| 24.8%)
Free 100 Y	56.66	48.19 (+8.47s \| 14.9%) 49.49 (+7.17s \| 12.7%)	46.39 (+10.27s \| 18.1%)	46.39 (+10.27s \| 18.1%)	44.89 (+11.77s \| 20.8%)	43.09 (+13.57s \| 23.9%)	44.39 (+12.27s \| 21.7%)
Free 200 Y	2:04.26	1:45.79 (+18.47s \| 14.9%) 1:48.79 (+15.47s \| 12.4%)	1:41.59 (+22.67s \| 18.2%)	1:41.59 (+22.67s \| 18.2%)	1:38.39 (+25.87s \| 20.8%)	1:34.99 (+29.27s \| 23.6%)	1:38.09 (+26.17s \| 21.1%)
Free 500 Y	5:38.21	4:47.79 (+50.42s \| 14.9%) 4:55.99 (+42.22s \| 12.5%)	4:37.09 (+61.12s \| 18.1%)	4:37.09 (+61.12s \| 18.1%)	4:28.79 (+69.42s \| 20.5%)	4:19.89 (+78.32s \| 23.2%)	4:27.69 (+70.52s \| 20.9%)
Back 100 Y	1:14.13	53.89 (+20.24s \| 27.3%) 55.39 (+18.74s \| 25.3%)	51.49 (+22.64s \| 30.5%)	51.49 (+22.64s \| 30.5%)	49.19 (+24.94s \| 33.6%)	46.99 (+27.14s \| 36.6%)	48.89 (+25.24s \| 34.0%)
Breast 100 Y	1:17.91	1:00.89 (+17.02s \| 21.8%) 1:02.59 (+15.32s \| 19.7%)	57.99 (+19.92s \| 25.6%)	57.99 (+19.92s \| 25.6%)	55.49 (+22.42s \| 28.8%)	53.29 (+24.62s \| 31.6%)	55.29 (+22.62s \| 29.0%)
Breast 200 Y	3:03.91	2:13.29 (+50.62s \| 27.5%) 2:17.09 (+46.82s \| 25.5%)	2:07.99 (+55.92s \| 30.4%)	2:07.99 (+55.92s \| 30.4%)	2:01.59 (+62.32s \| 33.9%)	1:56.39 (+67.52s \| 36.7%)	2:00.99 (+62.92s \| 34.2%)
Fly 100 Y	1:01.78	52.89 (+8.89s \| 14.4%) 54.39 (+7.39s \| 12.0%)	50.59 (+11.19s \| 18.1%)	50.59 (+11.19s \| 18.1%)	48.69 (+13.09s \| 21.2%)	46.69 (+15.09s \| 24.4%)	48.39 (+13.39s \| 21.7%)
IM 200 Y	2:35.97	1:58.19 (+37.78s \| 24.2%) 2:01.59 (+34.38s \| 22.0%)	1:53.89 (+42.08s \| 27.0%)	1:53.89 (+42.08s \| 27.0%)	1:49.59 (+46.38s \| 29.7%)	1:45.39 (+50.58s \| 32.4%)	1:48.89 (+47.08s \| 30.2%)