Katherine Du

Age: 9 years old
Age Category: 10 & under
Team: Nitro Swimming | South Texas Swimming

Personal Best

Short course distance

Event

Time

Age

Date

Standard

Next Standard

South Texas Swimming

Nitro Swimming

Free 50 Y

43.74

01/17/2026

B: 39.79 (+3.95s | 9.0%)

423

Free 100 Y

1:37.27

11/16/2025

B: 1:30.79 (+6.48s | 6.7%)

282

Back 50 Y

43.19

01/17/2026

A: 37.99 (+5.20s | 12.0%)

143

Back 100 Y

1:39.13

01/17/2026

BB: 1:33.99 (+5.14s | 5.2%)

150

50 Back

47.97

100 Back

51.16

1:39.13

100 Back

1:39.13

Breast 50 Y

54.39

10/26/2025

BB: 48.69 (+5.70s | 10.5%)

259

Breast 100 Y

1:53.76

11/16/2025

BB: 1:46.89 (+6.87s | 6.0%)

167

50 Breast

56.23

100 Breast

57.53

1:53.76

100 Breast

1:53.76

Fly 50 Y

53.35

11/16/2025

B: 48.39 (+4.96s | 9.3%)

271

IM 100 Y

1:45.46

01/17/2026

B: 1:44.29 (+1.17s | 1.1%)

233

50 IM

49.54

100 IM

55.92

1:45.46

100 IM

1:45.46

Long course distance

Event	Time	Age	Date	Standard	Next Standard	South Texas Swimming	Nitro Swimming
Free 50 M	52.13	9	06/08/2025		B: 45.29 (+6.84s \| 13.1%)	195	39

Back 50 M	54.53	9	06/08/2025	B	BB: 49.69 (+4.84s \| 8.9%)	121	25

Breast 50 M	1:07.55	9	06/08/2025		B: 1:02.19 (+5.36s \| 7.9%)	151	35

Above are the fastest times that Katherine Du 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	43.74	24.89 (+18.85s \| 43.1%)	23.89 (+19.85s \| 45.4%)	23.89 (+19.85s \| 45.4%)	23.29 (+20.45s \| 46.8%)	22.59 (+21.15s \| 48.4%)	22.79 (+20.95s \| 47.9%)	30.89 (+12.85s \| 29.4%)
Free 100 Y	1:37.27	53.99 (+43.28s \| 44.5%)	51.89 (+45.38s \| 46.7%)	51.89 (+45.38s \| 46.7%)	50.39 (+46.88s \| 48.2%)	49.29 (+47.98s \| 49.3%)	49.69 (+47.58s \| 48.9%)	1:08.19 (+29.08s \| 29.9%)
Back 50 Y	43.19	N/A	N/A	N/A	N/A	N/A	N/A	36.49 (+6.70s \| 15.5%)
Back 100 Y	1:39.13	59.49 (+39.64s \| 40.0%)	57.09 (+42.04s \| 42.4%)	57.09 (+42.04s \| 42.4%)	55.09 (+44.04s \| 44.4%)	53.89 (+45.24s \| 45.6%)	54.49 (+44.64s \| 45.0%)	1:17.89 (+21.24s \| 21.4%)
Breast 50 Y	54.39	N/A	N/A	N/A	N/A	N/A	N/A	40.39 (+14.00s \| 25.7%)
Breast 100 Y	1:53.76	1:07.59 (+46.17s \| 40.6%)	1:05.49 (+48.27s \| 42.4%)	1:05.49 (+48.27s \| 42.4%)	1:03.09 (+50.67s \| 44.5%)	1:01.79 (+51.97s \| 45.7%)	1:02.79 (+50.97s \| 44.8%)	1:27.99 (+25.77s \| 22.7%)
Fly 50 Y	53.35	N/A	N/A	N/A	N/A	N/A	N/A	35.09 (+18.26s \| 34.2%)
IM 100 Y	1:45.46	N/A	N/A	N/A	N/A	N/A	N/A	1:17.69 (+27.77s \| 26.3%)

Long Course Distance

Event	Best Time	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ	SouthWestern Age Group Regional
Free 50 M	52.13	28.69 (+23.44s \| 45.0%)	27.39 (+24.74s \| 47.5%)	27.39 (+24.74s \| 47.5%)	26.89 (+25.24s \| 48.4%)	26.29 (+25.84s \| 49.6%)	26.59 (+25.54s \| 49.0%)	35.19 (+16.94s \| 32.5%)
Back 50 M	54.53	N/A	N/A	N/A	N/A	N/A	N/A	41.79 (+12.74s \| 23.4%)
Breast 50 M	1:07.55	N/A	N/A	N/A	N/A	N/A	N/A	46.19 (+21.36s \| 31.6%)

Progression

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Meets

See all the meets Katherine Du 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 ST AQTX B Champs North

01/17/2026

Round Rock

100 Y IM

1:45.46

-0.50s (New PB)

B: 1:44.29 (+1.17s | 1.1%)

50 IM

49.54

100 IM

55.92

1:45.46

100 IM

1:45.46

50 Y Back

43.19

-0.99s (New PB)

A: 37.99 (+5.20s | 12.0%)

100 Y Back

1:39.13

-3.07s (New PB)

BB: 1:33.99 (+5.14s | 5.2%)

50 Back

47.97

100 Back

51.16

1:39.13

100 Back

1:39.13

50 Y Free

43.74

-1.12s (New PB)

B: 39.79 (+3.95s | 9.0%)

50 Y Breast

55.49

+1.10s

B: 54.59 (+0.90s | 1.6%)

100 Y Breast

1:57.04

+3.28s

BB: 1:46.89 (+10.15s | 8.7%)

50 Breast

55.19

100 Breast

1:01.85

1:57.04

100 Breast

1:57.04

2026 ST NTRO Chilly Icicles

01/04/2026

Buda

100 Y IM

1:45.96

-3.65s (New PB)

B: 1:44.29 (+1.67s | 1.6%)

50 IM

49.93

100 IM

56.03

1:45.96

100 IM

1:45.96

100 Y Free

1:40.00

+2.73s

B: 1:30.79 (+9.21s | 9.2%)

50 Y Free

44.86

-6.30s (New PB)

B: 39.79 (+5.07s | 11.3%)

50 Y Back

45.34

+1.16s

BB: 43.29 (+2.05s | 4.5%)

2025 ST NTRO Turkey Trot

11/16/2025

Buda

100 Y Free

1:37.27

-6.13s (New PB)

B: 1:30.79 (+6.48s | 6.7%)

50 Y Fly

53.35

B: 48.39 (+4.96s | 9.3%)

50 Y Back

44.18

-2.43s (New PB)

BB: 43.29 (+0.89s | 2.0%)

100 Y Breast

1:53.76

-24.66s (New PB)

BB: 1:46.89 (+6.87s | 6.0%)

50 Breast

56.23

100 Breast

57.53

1:53.76

100 Breast

1:53.76

2025 ST TXLA 10 U Fall Kick Off

10/26/2025

Austin

100 Y IM

1:49.61

-18.93s (New PB)

B: 1:44.29 (+5.32s | 4.9%)

50 IM

53.08

100 IM

56.53

1:49.61

100 IM

1:49.61

100 Y Back

1:42.20

BB: 1:33.99 (+8.21s | 8.0%)

50 Y Breast

54.39

-8.05s (New PB)

BB: 48.69 (+5.70s | 10.5%)

2025 ST AQTX Round Rock Unclassified

09/19/2025

Round Rock

50 Y Back

46.61

-7.12s (New PB)

BB: 43.29 (+3.32s | 7.1%)

100 Y Free

1:43.40

B: 1:30.79 (+12.61s | 12.2%)

50 Free

50.23

100 Free

53.17

1:43.40

100 Free

1:43.40

2025 ST TXLA 14 U Sprint Cup

06/08/2025

Austin

50 M Breast

1:07.55

B: 1:02.19 (+5.36s | 7.9%)

50 M Back

54.53

BB: 49.69 (+4.84s | 8.9%)

50 M Free

52.13

B: 45.29 (+6.84s | 13.1%)

2025 ST NTRO Fiery Flames Meet

02/01/2025

Kyle

50 Y Breast

1:02.44

-0.95s (New PB)

B: 54.59 (+7.85s | 12.6%)

50 Y Free

51.16

-1.24s (New PB)

B: 39.79 (+11.37s | 22.2%)

50 Y Back

55.34

+1.61s

B: 48.59 (+6.75s | 12.2%)

2025 ST NTRO Chilly Icicles Meet

01/04/2025

Bee Cave

100 Y IM

2:08.54

B: 1:44.29 (+24.25s | 18.9%)

50 Y Breast

1:03.39

-1.78s (New PB)

B: 54.59 (+8.80s | 13.9%)

50 Y Back

53.73

-6.13s (New PB)

B: 48.59 (+5.14s | 9.6%)

50 Y Free

53.50

+1.10s

B: 39.79 (+13.71s | 25.6%)

2024 ST NTRO Turkey Trot Meet

11/02/2024

Bee Cave

50 Y Free

56.62

+4.22s

B: 39.79 (+16.83s | 29.7%)

100 Y Breast

2:18.42

B: 2:00.29 (+18.13s | 13.1%)

50 Breast

1:04.11

100 Breast

1:14.31

2:18.42

100 Breast

2:18.42

50 Y Back

59.86

-0.16s (New PB)

B: 48.59 (+11.27s | 18.8%)

50 Y Breast

1:05.17

-2.19s (New PB)

B: 54.59 (+10.58s | 16.2%)

2024 ST TXLA 10 U Fall Kick Off

10/06/2024

Austin

50 Y Free

52.40

B: 39.79 (+12.61s | 24.1%)

50 Y Breast

1:07.36

B: 54.59 (+12.77s | 19.0%)

50 Y Back

1:00.02

B: 48.59 (+11.43s | 19.0%)

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.