Katherine Choi

Age: 10 years old
Age Category: 10 & under
Team: Town of Concord | New England Swimming

Personal Best

Short course distance

Event

Time

Age

Date

Standard

Next Standard

Town of Concord

New England Swimming

Eastern Zone

USA

Free 50 Y

34.44

01/30/2026

A: 32.09 (+2.35s | 6.8%)

129

616

1,000+

Free 100 Y

1:15.99

Analysis

06/07/2026

A: 1:11.49 (+4.50s | 5.9%)

430

1,000+

50 Free

36.66

100 Free

39.33

1:15.99

100 Free

1:15.99

Free 200 Y

3:05.49

Analysis

01/16/2026

BB: 3:00.59 (+4.90s | 2.6%)

173

775

1,000+

50 Free

40.62

100 Free

47.52

1:28.14

100 Free

1:28.14

150 Free

49.38

2:17.52

200 Free

47.97

3:05.49

100 Free

1:37.35

Back 50 Y

43.83

01/16/2026

BB: 43.29 (+0.54s | 1.2%)

255

1,000+

Breast 50 Y

44.55

01/30/2026

A: 42.79 (+1.76s | 4.0%)

371

987

Breast 100 Y

1:34.17

Analysis

01/30/2026

A: 1:33.59 (+0.58s | 0.6%)

228

786

50 Breast

45.15

100 Breast

49.02

1:34.17

100 Breast

1:34.17

Fly 50 Y

42.03

06/07/2026

A: 36.99 (+5.04s | 12.0%)

155

744

1,000+

IM 100 Y

1:30.07

Analysis

01/30/2026

A: 1:22.09 (+7.98s | 8.9%)

135

637

1,000+

50 IM

43.82

100 IM

46.25

1:30.07

100 IM

1:30.07

Long course distance

Event

Time

Age

Date

Standard

Next Standard

Town of Concord

New England Swimming

Eastern Zone

USA

Free 100 M

1:24.10

Analysis

07/17/2026

A: 1:21.89 (+2.21s | 2.6%)

159

948

Breast 50 M

48.25

07/17/2026

AA: 46.49 (+1.76s | 3.6%)

471

Breast 100 M

1:54.22

Analysis

05/30/2026

A: 1:48.39 (+5.83s | 5.1%)

203

1,000+

50 Breast

53.79

100 Breast

1:00.43

1:54.22

100 Breast

1:54.22

Fly 50 M

48.71

05/30/2026

BB: 48.09 (+0.62s | 1.3%)

118

333

1,000+

Above are the fastest times that Katherine Choi has achieved in her swimming career. For each event, you can find Katherine's best time, the corresponding time standard, as well as how much faster Katherine needs to be to reach the next level. The last columns provide Katherine rankings at the team and LSC levels. These rankings are based on the Katherine's personal best, her 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 50 Y	34.44	24.89 (+9.55s \| 27.7%)	23.89 (+10.55s \| 30.6%)	23.89 (+10.55s \| 30.6%)	23.29 (+11.15s \| 32.4%)	22.59 (+11.85s \| 34.4%)	22.79 (+11.65s \| 33.8%)	30.89 (+3.55s \| 10.3%)
Free 100 Y	1:15.99	53.99 (+22.00s \| 29.0%)	51.89 (+24.10s \| 31.7%)	51.89 (+24.10s \| 31.7%)	50.39 (+25.60s \| 33.7%)	49.29 (+26.70s \| 35.1%)	49.69 (+26.30s \| 34.6%)	1:08.19 (+7.80s \| 10.3%)
Free 200 Y	3:05.49	1:56.29 (+69.20s \| 37.3%)	1:52.89 (+72.60s \| 39.1%)	1:52.29 (+73.20s \| 39.5%)	1:49.09 (+76.40s \| 41.2%)	1:46.69 (+78.80s \| 42.5%)	1:47.39 (+78.10s \| 42.1%)	2:29.09 (+36.40s \| 19.6%)
Back 50 Y	43.83	27.59 (+16.24s \| 37.1%)	N/A	N/A	N/A	N/A	N/A	36.49 (+7.34s \| 16.7%)
Breast 50 Y	44.55	30.99 (+13.56s \| 30.4%)	N/A	N/A	N/A	N/A	N/A	40.39 (+4.16s \| 9.3%)
Breast 100 Y	1:34.17	1:07.59 (+26.58s \| 28.2%)	1:05.49 (+28.68s \| 30.5%)	1:05.49 (+28.68s \| 30.5%)	1:03.09 (+31.08s \| 33.0%)	1:01.79 (+32.38s \| 34.4%)	1:02.79 (+31.38s \| 33.3%)	1:27.99 (+6.18s \| 6.6%)
Fly 50 Y	42.03	27.09 (+14.94s \| 35.5%)	N/A	N/A	N/A	N/A	N/A	35.09 (+6.94s \| 16.5%)
IM 100 Y	1:30.07	N/A	N/A	N/A	N/A	N/A	N/A	1:17.69 (+12.38s \| 13.7%)

Long Course Distance

Event	Best Time	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ	SouthWestern Age Group Regional
Free 100 M	1:24.10	1:01.89 (+22.21s \| 26.4%)	59.29 (+24.81s \| 29.5%)	59.29 (+24.81s \| 29.5%)	58.19 (+25.91s \| 30.8%)	56.99 (+27.11s \| 32.2%)	57.59 (+26.51s \| 31.5%)	1:17.49 (+6.61s \| 7.9%)
Breast 50 M	48.25	36.59 (+11.66s \| 24.2%)	N/A	N/A	N/A	N/A	N/A	46.19 (+2.06s \| 4.3%)
Breast 100 M	1:54.22	1:18.79 (+35.43s \| 31.0%)	1:15.99 (+38.23s \| 33.5%)	1:15.99 (+38.23s \| 33.5%)	1:13.79 (+40.43s \| 35.4%)	1:12.19 (+42.03s \| 36.8%)	1:13.29 (+40.93s \| 35.8%)	1:41.49 (+12.73s \| 11.1%)
Fly 50 M	48.71	31.19 (+17.52s \| 36.0%)	N/A	N/A	N/A	N/A	N/A	39.69 (+9.02s \| 18.5%)

Progression

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

Event

Time

Progress

Standard

Next Standard

Age

Heat

Lane

Ranking

2026 NE MST ESC LCM 12 Under Championship

07/17/2026

Manchester

100 M Free

1:24.10

-2.50s (New PB)

A: 1:21.89 (+2.21s | 2.6%)

50 M Breast

48.25

AA: 46.49 (+1.76s | 3.6%)

2026 NE NSSC June Invitational At BC High

06/07/2026

Boston

50 Y Fly

42.03

A: 36.99 (+5.04s | 12.0%)

100 Y Breast

1:36.86

+2.69s

A: 1:33.59 (+3.27s | 3.4%)

50 Breast

46.41

100 Breast

50.45

1:36.86

100 Breast

1:36.86

100 Y Free

1:15.99

-2.08s (New PB)

A: 1:11.49 (+4.50s | 5.9%)

50 Free

36.66

100 Free

39.33

1:15.99

100 Free

1:15.99

50 Y Free

35.57

+1.13s

A: 32.09 (+3.48s | 9.8%)

2026 NE NSSC May Invitational At Colby

05/30/2026

Waterville

100 M Breast

1:54.22

A: 1:48.39 (+5.83s | 5.1%)

50 Breast

53.79

100 Breast

1:00.43

1:54.22

100 Breast

1:54.22

100 M Free

1:26.60

A: 1:21.89 (+4.71s | 5.4%)

50 Free

41.18

100 Free

45.42

1:26.60

100 Free

1:26.60

50 M Fly

48.71

BB: 48.09 (+0.62s | 1.3%)

2026 NE SAC 10 Under Champs

02/13/2026

Kingston

100 Y Free

1:18.07

-1.95s (New PB)

A: 1:11.49 (+6.58s | 8.4%)

50 Free

36.64

100 Free

41.43

1:18.07

100 Free

1:18.07

100 Y Breast

1:35.01

+0.84s

A: 1:33.59 (+1.42s | 1.5%)

50 Breast

46.60

100 Breast

48.41

1:35.01

100 Breast

1:35.01

2026 NE GS Silver Championships

01/30/2026

Worcester

100 Y IM

1:30.07

-2.39s (New PB)

A: 1:22.09 (+7.98s | 8.9%)

50 IM

43.82

100 IM

46.25

1:30.07

100 IM

1:30.07

50 Y Breast

44.55

-0.73s (New PB)

A: 42.79 (+1.76s | 4.0%)

100 Y Breast

1:34.17

-5.47s (New PB)

A: 1:33.59 (+0.58s | 0.6%)

50 Breast

45.15

100 Breast

49.02

1:34.17

100 Breast

1:34.17

50 Y Free

34.44

-1.32s (New PB)

A: 32.09 (+2.35s | 6.8%)

100 Y Free

1:20.26

+0.24s

A: 1:11.49 (+8.77s | 10.9%)

50 Free

37.57

100 Free

42.69

1:20.26

100 Free

1:20.26

2026 NE GS TT Silver Championships

01/30/2026

Worcester

50 Y Breast

45.61

+1.06s

A: 42.79 (+2.82s | 6.2%)

2026 NE CRIM TT Bronze Championship

01/16/2026

Andover

50 Y Breast

45.28

A: 42.79 (+2.49s | 5.5%)

2026 NE CRIM Bronze Championship

01/16/2026

Andover

200 Y Free

3:05.49

-2.82s (New PB)

BB: 3:00.59 (+4.90s | 2.6%)

50 Free

40.62

100 Free

47.52

1:28.14

100 Free

1:28.14

150 Free

49.38

2:17.52

200 Free

47.97

3:05.49

100 Free

1:37.35

50 Y Free

35.76

-3.57s (New PB)

A: 32.09 (+3.67s | 10.3%)

100 Y IM

1:32.46

-4.83s (New PB)

A: 1:22.09 (+10.37s | 11.2%)

50 IM

44.10

100 IM

48.36

1:32.46

100 IM

1:32.46

100 Y Breast

1:39.64

A: 1:33.59 (+6.05s | 6.1%)

50 Breast

47.91

100 Breast

51.73

1:39.64

100 Breast

1:39.64

50 Y Back

43.83

-2.50s (New PB)

BB: 43.29 (+0.54s | 1.2%)

100 Y Free

1:20.02

A: 1:11.49 (+8.53s | 10.7%)

50 Free

37.32

100 Free

42.70

1:20.02

100 Free

1:20.02

2025 NE NSSC Beede Halloween Classic Copied

10/17/2025

Concord

50 Y Free

39.33

BB: 35.99 (+3.34s | 8.5%)

200 Y Free

3:08.31

BB: 3:00.59 (+7.72s | 4.1%)

50 Free

40.35

100 Free

49.25

1:29.60

100 Free

1:29.60

150 Free

50.95

2:20.55

200 Free

47.76

3:08.31

100 Free

1:38.71

50 Y Back

46.33

BB: 43.29 (+3.04s | 6.6%)

100 Y IM

1:37.29

BB: 1:33.19 (+4.10s | 4.2%)

50 IM

47.42

100 IM

49.87

1:37.29

100 IM

1:37.29

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