Johan Ko

Age: 15 years old
Age Category: 15-16
Team: Ace Swim Team | New Jersey Swimming

Personal Best

Short course distance

Event

Time

Age

Date

Standard

Next Standard

Ace Swim Team

New Jersey Swimming

Eastern Zone

USA

Free 50 Y

24.65

03/19/2026

A: 24.19 (+0.46s | 1.9%)

141

1,000+

Free 100 Y

57.34

Analysis

03/14/2026

A: 53.19 (+4.15s | 7.2%)

219

1,000+

50 Free

27.65

100 Free

29.69

57.34

100 Free

57.34

Breast 50 Y

31.71

03/14/2026

A: 31.39 (+0.32s | 1.0%)

554

1,000+

Breast 100 Y

1:11.22

Analysis

03/19/2026

A: 1:05.89 (+5.33s | 7.5%)

147

1,000+

50 Breast

33.99

100 Breast

37.23

1:11.22

100 Breast

1:11.22

Fly 50 Y

28.15

03/14/2026

A: 27.09 (+1.06s | 3.8%)

936

1,000+

Fly 100 Y

1:06.64

Analysis

03/14/2026

BB: 1:02.39 (+4.25s | 6.4%)

184

1,000+

50 Fly

29.70

100 Fly

36.94

1:06.64

100 Fly

1:06.64

Long course distance

Event

Time

Age

Date

Standard

Next Standard

Ace Swim Team

New Jersey Swimming

Eastern Zone

USA

Free 50 M

28.19

05/02/2026

AA: 26.99 (+1.20s | 4.3%)

127

692

1,000+

Back 50 M

34.37

05/02/2026

A: 32.39 (+1.98s | 5.8%)

440

1,000+

Breast 100 M

1:27.12

Analysis

05/02/2026

BB: 1:23.09 (+4.03s | 4.6%)

114

650

1,000+

50 Breast

41.63

100 Breast

45.49

1:27.12

100 Breast

1:27.12

Above are the fastest times that Johan Ko has achieved in his swimming career. For each event, you can find Johan's best time, the corresponding time standard, as well as how much faster Johan needs to be to reach the next level. The last columns provide Johan rankings at the team and LSC levels. These rankings are based on the Johan'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	24.65	22.19 (+2.46s \| 10.0%) 22.79 (+1.86s \| 7.5%)	21.29 (+3.36s \| 13.6%)	21.29 (+3.36s \| 13.6%)	20.49 (+4.16s \| 16.9%)	19.69 (+4.96s \| 20.1%)	20.39 (+4.26s \| 17.3%)
Free 100 Y	57.34	48.19 (+9.15s \| 16.0%) 49.49 (+7.85s \| 13.7%)	46.39 (+10.95s \| 19.1%)	46.39 (+10.95s \| 19.1%)	44.89 (+12.45s \| 21.7%)	43.09 (+14.25s \| 24.9%)	44.39 (+12.95s \| 22.6%)
Breast 50 Y	31.71	27.69 (+4.02s \| 12.7%) 28.09 (+3.62s \| 11.4%)	N/A	N/A	N/A	24.39 (+7.32s \| 23.1%)	N/A
Breast 100 Y	1:11.22	1:00.89 (+10.33s \| 14.5%) 1:02.59 (+8.63s \| 12.1%)	57.99 (+13.23s \| 18.6%)	57.99 (+13.23s \| 18.6%)	55.49 (+15.73s \| 22.1%)	53.29 (+17.93s \| 25.2%)	55.29 (+15.93s \| 22.4%)
Fly 50 Y	28.15	24.09 (+4.06s \| 14.4%) 24.39 (+3.76s \| 13.4%)	N/A	N/A	N/A	21.19 (+6.96s \| 24.7%)	N/A
Fly 100 Y	1:06.64	52.89 (+13.75s \| 20.6%) 54.39 (+12.25s \| 18.4%)	50.59 (+16.05s \| 24.1%)	50.59 (+16.05s \| 24.1%)	48.69 (+17.95s \| 26.9%)	46.69 (+19.95s \| 29.9%)	48.39 (+18.25s \| 27.4%)

Long Course Distance

Event	Best Time	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ
Free 50 M	28.19	25.89 (+2.30s \| 8.2%) 26.59 (+1.60s \| 5.7%)	24.59 (+3.60s \| 12.8%)	24.59 (+3.60s \| 12.8%)	24.09 (+4.10s \| 14.5%)	23.29 (+4.90s \| 17.4%)	23.79 (+4.40s \| 15.6%)
Back 50 M	34.37	29.29 (+5.08s \| 14.8%) 29.79 (+4.58s \| 13.3%)	N/A	N/A	N/A	26.09 (+8.28s \| 24.1%)	N/A
Breast 100 M	1:27.12	1:11.29 (+15.83s \| 18.2%) 1:13.29 (+13.83s \| 15.9%)	1:08.19 (+18.93s \| 21.7%)	1:08.19 (+18.93s \| 21.7%)	1:05.89 (+21.23s \| 24.4%)	1:03.69 (+23.43s \| 26.9%)	1:05.29 (+21.83s \| 25.1%)

Progression

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

Event

Time

Progress

Standard

Next Standard

Age

Heat

Lane

Ranking

2026 STAC Thank You Mom

05/02/2026

Piscataway

50 M Back

34.37

A: 33.89 (+0.48s | 1.4%)

50 M Free

28.19

AAA: 26.89 (+1.30s | 4.6%)

100 M Breast

1:27.12

BB: 1:27.09 (+0.03s | 0.0%)

50 Breast

41.63

100 Breast

45.49

1:27.12

100 Breast

1:27.12

2026 NJS Scarlet 11 Over Gold Champs

03/19/2026

New Brunswick

100 Y Breast

1:11.22

A: 1:08.99 (+2.23s | 3.1%)

50 Breast

33.99

100 Breast

37.23

1:11.22

100 Breast

1:11.22

50 Y Free

24.65

AA: 24.59 (+0.06s | 0.2%)

2026 NJS SCAR 13 Over Silvers

03/14/2026

New Brunswick

100 Y Free

57.34

A: 55.69 (+1.65s | 2.9%)

50 Free

27.65

100 Free

29.69

57.34

100 Free

57.34

50 Y Breast

31.71

AA: 31.69 (+0.02s | 0.1%)

100 Y Fly

1:06.64

BB: 1:05.49 (+1.15s | 1.7%)

50 Fly

29.70

100 Fly

36.94

1:06.64

100 Fly

1:06.64

50 Y Fly

28.15

AA: 27.19 (+0.96s | 3.4%)

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.