Siyun Yoo

Age: 9 years old
Age Category: 10 & under
Team: Utica Shelby Swim Club | Michigan Swimming

Personal Best

Short course distance

Event

Time

Age

Date

Standard

Next Standard

Utica Shelby Swim Club

Michigan Swimming

Central Zone

USA

Free 50 Y

37.12

11/22/2025

BB: 35.99 (+1.13s | 3.0%)

314

639

1,000+

Free 100 Y

1:20.87

11/22/2025

A: 1:11.49 (+9.38s | 11.6%)

218

420

1,000+

50 Free

38.67

100 Free

42.20

1:20.87

100 Free

1:20.87

Free 200 Y

3:03.38

12/09/2025

BB: 3:00.59 (+2.79s | 1.5%)

173

360

1,000+

50 Free

40.93

100 Free

46.05

1:26.98

100 Free

1:26.98

150 Free

49.80

2:16.78

200 Free

46.60

3:03.38

100 Free

1:36.40

Free 500 Y

8:00.42

01/16/2026

BB: 7:45.09 (+15.33s | 3.2%)

211

1,000+

50 Free

42.63

100 Free

47.74

1:30.37

100 Free

1:30.37

150 Free

49.34

2:19.71

200 Free

48.28

3:07.99

100 Free

1:37.62

250 Free

49.91

3:57.90

300 Free

49.93

4:47.83

100 Free

1:39.84

350 Free

50.38

5:38.21

400 Free

47.40

6:25.61

100 Free

1:37.78

450 Free

48.89

7:14.50

500 Free

45.92

8:00.42

100 Free

1:34.81

Back 50 Y

41.47

01/16/2026

A: 37.99 (+3.48s | 8.4%)

177

374

1,000+

Back 100 Y

1:31.70

12/06/2025

A: 1:22.29 (+9.41s | 10.3%)

152

342

1,000+

50 Back

42.83

100 Back

48.87

1:31.70

100 Back

1:31.70

Breast 50 Y

47.56

10/17/2025

A: 42.79 (+4.77s | 10.0%)

164

318

1,000+

Breast 100 Y

1:46.02

12/09/2025

A: 1:33.59 (+12.43s | 11.7%)

170

341

1,000+

50 Breast

50.57

100 Breast

55.45

1:46.02

100 Breast

1:46.02

Fly 50 Y

44.79

01/16/2026

BB: 42.69 (+2.10s | 4.7%)

221

449

1,000+

IM 100 Y

1:32.22

12/06/2025

A: 1:22.09 (+10.13s | 11.0%)

168

346

1,000+

50 IM

42.28

100 IM

49.94

1:32.22

100 IM

1:32.22

IM 200 Y

3:37.78

10/17/2025

BB: 3:18.79 (+18.99s | 8.7%)

164

384

1,000+

50 Fly

55.07

100 Back

52.05

1:47.12

100 IM

1:47.12

150 Breast

1:00.27

2:47.39

200 Free

50.39

3:37.78

100 IM

1:50.66

Long course distance

Event	Time		Age	Date	Standard	Next Standard	Utica Shelby Swim Club	Michigan Swimming	Central Zone	USA

Above are the fastest times that Siyun Yoo has achieved in her swimming career. For each event, you can find Siyun's best time, the corresponding time standard, as well as how much faster Siyun needs to be to reach the next level. The last columns provide Siyun rankings at the team and LSC levels. These rankings are based on the Siyun'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	37.12	24.89 (+12.23s \| 32.9%)	23.89 (+13.23s \| 35.6%)	23.89 (+13.23s \| 35.6%)	23.29 (+13.83s \| 37.3%)	22.59 (+14.53s \| 39.1%)	22.79 (+14.33s \| 38.6%)	30.89 (+6.23s \| 16.8%)
Free 100 Y	1:20.87	53.99 (+26.88s \| 33.2%)	51.89 (+28.98s \| 35.8%)	51.89 (+28.98s \| 35.8%)	50.39 (+30.48s \| 37.7%)	49.29 (+31.58s \| 39.1%)	49.69 (+31.18s \| 38.6%)	1:08.19 (+12.68s \| 15.7%)
Free 200 Y	3:03.38	1:56.29 (+67.09s \| 36.6%)	1:52.89 (+70.49s \| 38.4%)	1:52.29 (+71.09s \| 38.8%)	1:49.09 (+74.29s \| 40.5%)	1:46.69 (+76.69s \| 41.8%)	1:47.39 (+75.99s \| 41.4%)	2:29.09 (+34.29s \| 18.7%)
Free 500 Y	8:00.42	5:10.69 (+169.73s \| 35.3%)	5:02.59 (+177.83s \| 37.0%)	5:02.59 (+177.83s \| 37.0%)	4:53.09 (+187.33s \| 39.0%)	4:45.99 (+194.43s \| 40.5%)	4:48.09 (+192.33s \| 40.0%)	6:31.39 (+89.03s \| 18.5%)
Back 50 Y	41.47	N/A	N/A	N/A	N/A	N/A	N/A	36.49 (+4.98s \| 12.0%)
Back 100 Y	1:31.70	59.49 (+32.21s \| 35.1%)	57.09 (+34.61s \| 37.7%)	57.09 (+34.61s \| 37.7%)	55.09 (+36.61s \| 39.9%)	53.89 (+37.81s \| 41.2%)	54.49 (+37.21s \| 40.6%)	1:17.89 (+13.81s \| 15.1%)
Breast 50 Y	47.56	N/A	N/A	N/A	N/A	N/A	N/A	40.39 (+7.17s \| 15.1%)
Breast 100 Y	1:46.02	1:07.59 (+38.43s \| 36.2%)	1:05.49 (+40.53s \| 38.2%)	1:05.49 (+40.53s \| 38.2%)	1:03.09 (+42.93s \| 40.5%)	1:01.79 (+44.23s \| 41.7%)	1:02.79 (+43.23s \| 40.8%)	1:27.99 (+18.03s \| 17.0%)
Fly 50 Y	44.79	N/A	N/A	N/A	N/A	N/A	N/A	35.09 (+9.70s \| 21.7%)
IM 100 Y	1:32.22	N/A	N/A	N/A	N/A	N/A	N/A	1:17.69 (+14.53s \| 15.8%)
IM 200 Y	3:37.78	2:10.49 (+87.29s \| 40.1%)	2:06.39 (+91.39s \| 42.0%)	2:06.39 (+91.39s \| 42.0%)	2:02.19 (+95.59s \| 43.9%)	1:59.49 (+98.29s \| 45.1%)	2:00.59 (+97.19s \| 44.6%)	2:46.49 (+51.29s \| 23.6%)

Long Course Distance

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

Progression

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

Event

Time

Progress

Standard

Next Standard

Age

Heat

Lane

Ranking

Not Winter Invite

02/06/2026

Rochester Hills

200 Y Free

3:14.37

+10.99s

BB: 3:00.59 (+13.78s | 7.1%)

50 Free

44.07

100 Free

49.73

1:33.80

100 Free

1:33.80

150 Free

51.47

2:25.27

200 Free

49.10

3:14.37

100 Free

1:40.57

50 Y Back

42.55

+1.08s

A: 37.99 (+4.56s | 10.7%)

100 Y Breast

1:47.12

+1.10s

BB: 1:46.89 (+0.23s | 0.2%)

50 Breast

51.35

100 Breast

55.77

1:47.12

100 Breast

1:47.12

2026 Odd Age Classic

01/16/2026

Waterford

500 Y Free

8:00.42

BB: 7:45.09 (+15.33s | 3.2%)

50 Free

42.63

100 Free

47.74

1:30.37

100 Free

1:30.37

150 Free

49.34

2:19.71

200 Free

48.28

3:07.99

100 Free

1:37.62

250 Free

49.91

3:57.90

300 Free

49.93

4:47.83

100 Free

1:39.84

350 Free

50.38

5:38.21

400 Free

47.40

6:25.61

100 Free

1:37.78

450 Free

48.89

7:14.50

500 Free

45.92

8:00.42

100 Free

1:34.81

50 Y Fly

44.79

-3.52s (New PB)

BB: 42.69 (+2.10s | 4.7%)

200 Y Free

3:11.46

+8.08s

BB: 3:00.59 (+10.87s | 5.7%)

50 Free

44.00

100 Free

51.11

1:35.11

100 Free

1:35.11

150 Free

49.13

2:24.24

200 Free

47.22

3:11.46

100 Free

1:36.35

50 Y Free

40.31

+3.19s

B: 39.79 (+0.52s | 1.3%)

50 Y Back

41.47

-0.20s (New PB)

A: 37.99 (+3.48s | 8.4%)

100 Y IM

1:34.94

+2.72s

BB: 1:33.19 (+1.75s | 1.8%)

50 IM

45.73

100 IM

49.21

1:34.94

100 IM

1:34.94

USSC Holiday Intersquad

12/09/2025

Rochester

100 Y IM

1:35.75

+3.53s

BB: 1:33.19 (+2.56s | 2.7%)

50 IM

44.92

100 IM

50.83

1:35.75

100 IM

1:35.75

100 Y Breast

1:46.02

-2.73s (New PB)

A: 1:33.59 (+12.43s | 11.7%)

50 Breast

50.57

100 Breast

55.45

1:46.02

100 Breast

1:46.02

50 Y Fly

48.31

-2.99s (New PB)

BB: 42.69 (+5.62s | 11.6%)

200 Y Free

3:03.38

BB: 3:00.59 (+2.79s | 1.5%)

50 Free

40.93

100 Free

46.05

1:26.98

100 Free

1:26.98

150 Free

49.80

2:16.78

200 Free

46.60

3:03.38

100 Free

1:36.40

SLA Holiday Blast

12/06/2025

Brighton

100 Y Breast

1:52.13

+3.38s

BB: 1:46.89 (+5.24s | 4.7%)

50 Breast

52.43

100 Breast

59.70

1:52.13

100 Breast

1:52.13

50 Y Free

39.27

+2.15s

BB: 35.99 (+3.28s | 8.4%)

100 Y Free

1:21.88

+1.01s

BB: 1:21.09 (+0.79s | 1.0%)

50 Free

38.01

100 Free

43.87

1:21.88

100 Free

1:21.88

100 Y Back

1:31.70

-2.93s (New PB)

A: 1:22.29 (+9.41s | 10.3%)

50 Back

42.83

100 Back

48.87

1:31.70

100 Back

1:31.70

50 Y Breast

49.13

+1.57s

BB: 48.69 (+0.44s | 0.9%)

50 Y Fly

52.39

+1.09s

B: 48.39 (+4.00s | 7.6%)

50 Y Back

41.72

+0.05s

A: 37.99 (+3.73s | 8.9%)

100 Y IM

1:32.22

-1.68s (New PB)

A: 1:22.09 (+10.13s | 11.0%)

50 IM

42.28

100 IM

49.94

1:32.22

100 IM

1:32.22

2025 Fall Fiesta

11/22/2025

Rochester Hills

100 Y Breast

1:48.75

BB: 1:46.89 (+1.86s | 1.7%)

50 Breast

51.80

100 Breast

56.95

1:48.75

100 Breast

1:48.75

50 Y Fly

51.30

B: 48.39 (+2.91s | 5.7%)

50 Y Back

41.67

-2.33s (New PB)

A: 37.99 (+3.68s | 8.8%)

100 Y Free

1:20.87

A: 1:11.49 (+9.38s | 11.6%)

50 Free

38.67

100 Free

42.20

1:20.87

100 Free

1:20.87

100 Y Back

1:34.63

BB: 1:33.99 (+0.64s | 0.7%)

50 Back

43.66

100 Back

50.97

1:34.63

100 Back

1:34.63

50 Y Free

37.12

-2.41s (New PB)

BB: 35.99 (+1.13s | 3.0%)

100 Y IM

1:33.90

BB: 1:33.19 (+0.71s | 0.8%)

50 IM

42.83

100 IM

51.07

1:33.90

100 IM

1:33.90

50 Y Breast

52.80

+5.24s

BB: 48.69 (+4.11s | 7.8%)

2025 USSC Trick Or Treat Grab Bag Classic

10/17/2025

Waterford

50 Y Back

44.00

BB: 43.29 (+0.71s | 1.6%)

50 Y Breast

47.56

A: 42.79 (+4.77s | 10.0%)

50 Y Free

39.53

BB: 35.99 (+3.54s | 9.0%)

200 Y IM

3:37.78

BB: 3:18.79 (+18.99s | 8.7%)

50 Fly

55.07

100 Back

52.05

1:47.12

100 IM

1:47.12

150 Breast

1:00.27

2:47.39

200 Free

50.39

3:37.78

100 IM

1:50.66

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.