Crystal Du

Age: 9 years old
Age Category: 10 & under
Team: Rockville Montgomery Swim Club | Potomac Valley Swimming

Personal Best

Short course distance

Event

Time

Age

Date

Standard

Next Standard

Rockville Montgomery Swim Club

Potomac Valley Swimming

Eastern Zone

USA

Free 50 Y

40.57

9

01/16/2026

B: 39.79 (+0.78s | 1.9%)

142

749

1,000+

Free 100 Y

1:34.77

Analysis

9

12/04/2025

B: 1:30.79 (+3.98s | 4.2%)

162

711

1,000+

Back 100 Y

1:43.44

Analysis

9

10/17/2025

B

BB: 1:33.99 (+9.45s | 9.1%)

82

463

1,000+

50 Back

49.63

100 Back

53.81

1:43.44

100 Back

1:43.44

Breast 50 Y

52.45

9

12/04/2025

B

BB: 48.69 (+3.76s | 7.2%)

132

586

1,000+

Fly 50 Y

41.72

9

03/20/2026

BB

A: 36.99 (+4.73s | 11.3%)

73

252

861

1,000+

IM 100 Y

1:37.74

Analysis

9

01/16/2026

B

BB: 1:33.19 (+4.55s | 4.7%)

125

462

1,000+

50 IM

45.95

100 IM

51.79

1:37.74

100 IM

1:37.74

IM 200 Y

3:37.22

Analysis

9

11/14/2025

B

BB: 3:18.79 (+18.43s | 8.5%)

64

260

979

1,000+

50 Fly

47.91

100 Back

54.13

1:42.04

100 IM

1:42.04

150 Breast

1:00.51

2:42.55

200 Free

54.67

3:37.22

100 IM

1:55.18

Long course distance

Event	Time		Age	Date	Standard	Next Standard	Rockville Montgomery Swim Club	Potomac Valley Swimming	Eastern Zone	USA

Above are the fastest times that Crystal Du has achieved in her swimming career. For each event, you can find Crystal's best time, the corresponding time standard, as well as how much faster Crystal needs to be to reach the next level. The last columns provide Crystal rankings at the team and LSC levels. These rankings are based on the Crystal'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	40.57	24.89 (+15.68s \| 38.6%)	23.89 (+16.68s \| 41.1%)	23.89 (+16.68s \| 41.1%)	23.29 (+17.28s \| 42.6%)	22.59 (+17.98s \| 44.3%)	22.79 (+17.78s \| 43.8%)	30.89 (+9.68s \| 23.9%)
Free 100 Y	1:34.77	53.99 (+40.78s \| 43.0%)	51.89 (+42.88s \| 45.2%)	51.89 (+42.88s \| 45.2%)	50.39 (+44.38s \| 46.8%)	49.29 (+45.48s \| 48.0%)	49.69 (+45.08s \| 47.6%)	1:08.19 (+26.58s \| 28.0%)
Back 100 Y	1:43.44	59.49 (+43.95s \| 42.5%)	57.09 (+46.35s \| 44.8%)	57.09 (+46.35s \| 44.8%)	55.09 (+48.35s \| 46.7%)	53.89 (+49.55s \| 47.9%)	54.49 (+48.95s \| 47.3%)	1:17.89 (+25.55s \| 24.7%)
Breast 50 Y	52.45	N/A	N/A	N/A	N/A	N/A	N/A	40.39 (+12.06s \| 23.0%)
Fly 50 Y	41.72	N/A	N/A	N/A	N/A	N/A	N/A	35.09 (+6.63s \| 15.9%)
IM 100 Y	1:37.74	N/A	N/A	N/A	N/A	N/A	N/A	1:17.69 (+20.05s \| 20.5%)
IM 200 Y	3:37.22	2:10.49 (+86.73s \| 39.9%)	2:06.39 (+90.83s \| 41.8%)	2:06.39 (+90.83s \| 41.8%)	2:02.19 (+95.03s \| 43.7%)	1:59.49 (+97.73s \| 45.0%)	2:00.59 (+96.63s \| 44.5%)	2:46.49 (+50.73s \| 23.4%)

Long Course Distance

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

Progression

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

Event

Time

Progress

Standard

Next Standard

Age

Heat

Lane

Ranking

2026 RMSC Spring Finale

03/20/2026

Boyds

50 Y Free

41.48

+0.91s

B: 39.79 (+1.69s | 4.1%)

9

3

9

5

100 Y Back

1:44.06

+0.62s

B

BB: 1:33.99 (+10.07s | 9.7%)

9

3

9

2

50 Y Fly

41.72

-0.45s (New PB)

BB

A: 36.99 (+4.73s | 11.3%)

9

5

8

2

2026 RMSC February Invitational

02/20/2026

Silver Spring

100 Y Free

1:43.56

+8.79s

B: 1:30.79 (+12.77s | 12.3%)

9

2

5

50 Free

46.11

100 Free

57.45

1:43.56

100 Free

1:43.56

50 Y Fly

45.52

+3.35s

B

BB: 42.69 (+2.83s | 6.2%)

9

4

8

2026 RMSC January Intrasquad Meet

01/16/2026

Boyds

50 Y Fly

42.17

-0.26s (New PB)

BB

A: 36.99 (+5.18s | 12.3%)

9

4

2

50 Y Free

40.57

-1.42s (New PB)

B: 39.79 (+0.78s | 1.9%)

9

2

7

100 Y IM

1:37.74

B

BB: 1:33.19 (+4.55s | 4.7%)

9

3

7

1

50 IM

45.95

100 IM

51.79

1:37.74

100 IM

1:37.74

2025 PV Turkey Claus Showdown

12/04/2025

College Park

50 Y Breast

52.45

B

BB: 48.69 (+3.76s | 7.2%)

9

200 Y IM

3:43.98

+6.76s

B: 3:42.09 (+1.89s | 0.8%)

9

50 Fly

48.32

100 Back

59.49

1:47.81

100 IM

1:47.81

150 Breast

1:02.61

2:50.42

200 Free

53.56

3:43.98

100 IM

1:56.17

100 Y Free

1:34.77

-7.05s (New PB)

B: 1:30.79 (+3.98s | 4.2%)

9

2025 RMSC November Dual Meet

11/14/2025

Boyds

50 Y Fly

43.09

+0.66s

B

BB: 42.69 (+0.40s | 0.9%)

9

4

2

100 Y Free

1:41.82

B: 1:30.79 (+11.03s | 10.8%)

9

4

2

50 Free

47.49

100 Free

54.33

1:41.82

100 Free

1:41.82

200 Y IM

3:37.22

B

BB: 3:18.79 (+18.43s | 8.5%)

9

2

6

50 Fly

47.91

100 Back

54.13

1:42.04

100 IM

1:42.04

150 Breast

1:00.51

2:42.55

200 Free

54.67

3:37.22

100 IM

1:55.18

2025 RMSC October Kick Off Classic

10/17/2025

Boyds

50 Y Free

41.99

B: 39.79 (+2.20s | 5.2%)

9

6

7

4

100 Y Back

1:43.44

B

BB: 1:33.99 (+9.45s | 9.1%)

9

1

8

50 Back

49.63

100 Back

53.81

1:43.44

100 Back

1:43.44

50 Y Fly

42.43

BB

A: 36.99 (+5.44s | 12.8%)

9

7

6

2