Sierra Cook

Age: 10 years old
Age Category: 10 & under
Team: Team Vortex | Colorado Swimming

Personal Best

Short course distance

Event

Time

Age

Date

Standard

Next Standard

Team Vortex

Colorado Swimming

Western Zone

USA

Free 25 Y

16.89

09/26/2026

Rankings

Free 50 Y

43.38

01/16/2026

B: 39.79 (+3.59s | 8.3%)

Rankings

Back 25 Y

22.05

09/26/2026

Rankings

Back 50 Y

50.03

03/06/2026

B: 48.59 (+1.44s | 2.9%)

Rankings

25 Back

24.18

50 Back

25.85

50.03

50 Back

50.03

Back 100 Y

1:50.66

Analysis

01/16/2026

B: 1:45.79 (+4.87s | 4.4%)

Rankings

50 Back

51.83

100 Back

58.83

1:50.66

100 Back

1:50.66

Breast 25 Y

24.84

09/26/2026

Rankings

Breast 50 Y

57.73

01/16/2026

B: 54.59 (+3.14s | 5.4%)

Rankings

Breast 100 Y

2:10.69

Analysis

03/06/2026

B: 2:00.29 (+10.40s | 8.0%)

Rankings

25 Breast

28.97

50 Breast

32.82

1:01.79

50 Breast

1:01.79

75 Breast

36.43

1:38.22

100 Breast

32.47

2:10.69

50 Breast

1:08.90

Fly 25 Y

17.67

09/26/2026

Rankings

IM 100 Y

1:46.55

Analysis

09/26/2026

B: 1:44.29 (+2.26s | 2.1%)

Rankings

Long course distance

Event	Time		Age	Date	Standard	Next Standard	Team Vortex	Colorado Swimming	Western Zone	USA

Above are the fastest times that Sierra Cook has achieved in her swimming career. For each event, you can find Sierra's best time, the corresponding time standard, as well as how much faster Sierra needs to be to reach the next level. The last columns provide Sierra rankings at the team and LSC levels. These rankings are based on the Sierra'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
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	43.38	24.89 (+18.49s \| 42.6%) 25.69 (+17.69s \| 40.8%)	23.89 (+19.49s \| 44.9%)	23.89 (+19.49s \| 44.9%)	23.29 (+20.09s \| 46.3%)	22.49 (+20.89s \| 48.2%)	22.79 (+20.59s \| 47.5%)
Back 50 Y	50.03	27.59 (+22.44s \| 44.9%) 28.29 (+21.74s \| 43.5%)	N/A	N/A	N/A	24.39 (+25.64s \| 51.2%)	N/A
Back 100 Y	1:50.66	59.49 (+51.17s \| 46.2%) 1:01.19 (+49.47s \| 44.7%)	57.09 (+53.57s \| 48.4%)	57.09 (+53.57s \| 48.4%)	55.09 (+55.57s \| 50.2%)	52.99 (+57.67s \| 52.1%)	54.49 (+56.17s \| 50.8%)
Breast 50 Y	57.73	30.99 (+26.74s \| 46.3%) 31.89 (+25.84s \| 44.8%)	N/A	N/A	N/A	27.99 (+29.74s \| 51.5%)	N/A
Breast 100 Y	2:10.69	1:07.59 (+63.10s \| 48.3%) 1:09.49 (+61.20s \| 46.8%)	1:05.49 (+65.20s \| 49.9%)	1:05.49 (+65.20s \| 49.9%)	1:03.09 (+67.60s \| 51.7%)	1:00.79 (+69.90s \| 53.5%)	1:02.79 (+67.90s \| 52.0%)
IM 100 Y	1:46.55	N/A	N/A	N/A	N/A	N/A	N/A

Long Course Distance

Event	Best Time	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ	U.S. Olympic Team Trials

Progression

See how Sierra Cook is improving gradually by choosing the distance and the stroke you are interested in. You can also compare the Sierra's time to another swimmer's and even view their profile for more information about them.

Select the distance and stroke

Compare with another swimmer

View this profile

Meets

See all the meets Sierra Cook has participated in and her achievement. The last event displayed is the most recent. For each event, you can find the Sierra's time, the progress against Sierra's best time, the corresponding time standard, as well as how much faster Sierra needs to be to reach the next level.

Event

Time

Progress

Standard

Next Standard

Age

Heat

Lane

Ranking

2026 CO Vortex Loveland Sprint Invite

09/26/2026

Loveland

25 Y Breast

24.84

-8.56s (New PB)

25 Y Fly

17.67

100 Y IM

1:46.55

-7.03s (New PB)

B: 1:44.29 (+2.26s | 2.1%)

25 Y Free

16.89

-3.78s (New PB)

25 Y Back

22.05

-2.74s (New PB)

2026 CO NCS Winter District Championships

03/06/2026

Fort Collins

100 Y IM

1:53.58

-4.28s (New PB)

B: 1:44.29 (+9.29s | 8.2%)

25 IM

25.43

50 IM

28.84

54.27

50 IM

54.27

75 IM

32.36

1:26.63

100 IM

26.95

1:53.58

50 IM

59.31

50 Y Free

43.70

+0.32s

B: 39.79 (+3.91s | 8.9%)

25 Free

19.87

50 Free

23.83

43.70

50 Free

43.70

50 Y Back

50.03

-0.67s (New PB)

B: 48.59 (+1.44s | 2.9%)

25 Back

24.18

50 Back

25.85

50.03

50 Back

50.03

100 Y Breast

2:10.69

B: 2:00.29 (+10.40s | 8.0%)

25 Breast

28.97

50 Breast

32.82

1:01.79

50 Breast

1:01.79

75 Breast

36.43

1:38.22

100 Breast

32.47

2:10.69

50 Breast

1:08.90

50 Y Breast

59.40

+1.67s

B: 54.59 (+4.81s | 8.1%)

25 Breast

28.10

50 Breast

31.30

59.40

50 Breast

59.40

2026 CO CUDA Classic

01/16/2026

Thornton

50 Y Back

50.70

-2.52s (New PB)

B: 48.59 (+2.11s | 4.2%)

100 Y Back

1:50.66

B: 1:45.79 (+4.87s | 4.4%)

50 Back

51.83

100 Back

58.83

1:50.66

100 Back

1:50.66

100 Y IM

1:57.86

B: 1:44.29 (+13.57s | 11.5%)

50 IM

55.18

100 IM

1:02.68

1:57.86

100 IM

1:57.86

50 Y Free

43.38

B: 39.79 (+3.59s | 8.3%)

50 Y Breast

57.73

-17.77s (New PB)

B: 54.59 (+3.14s | 5.4%)

2025 CO NCS Winter District Championships

03/07/2025

Fort Colins

50 Y Back

53.22

-4.12s (New PB)

B: 48.59 (+4.63s | 8.7%)

50 Y Breast

1:15.50

B: 54.59 (+20.91s | 27.7%)

2025 CO CUDA Classic

01/17/2025

Thornton

50 Y Back

57.34

-0.81s (New PB)

B: 48.59 (+8.75s | 15.3%)

25 Y Back

24.92

+0.13s

25 Y Breast

33.40

25 Y Free

20.67

-0.93s (New PB)

2024 CO LOVE Lightning Bolt Duel Invite #2

11/16/2024

Loveland

25 Y Back

28.01

+3.22s

25 Y Free

24.97

+3.37s

50 Y Back

58.15

B: 48.59 (+9.56s | 16.4%)

2024 CO Eaton Fall Fest

11/01/2024

Eaton

25 Y Free

21.60

-2.09s (New PB)

25 Y Back

26.86

+2.07s

2024 CO Lightning Bolt Duel Invite

09/21/2024

Loveland

25 Y Back

24.79

25 Y Free

23.69

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.