Mackenzie Holzhauer

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

Personal Best

Short course distance

Event

Time

Age

Date

Standard

Next Standard

Colorado Swimming

Castle Rock Swimming

Free 50 Y

42.58

01/04/2026

B: 39.79 (+2.79s | 6.6%)

366

Free 100 Y

1:40.71

12/19/2025

B: 1:30.79 (+9.92s | 9.9%)

322

Back 25 Y

28.38

01/05/2025

420

Back 50 Y

52.75

01/04/2026

B: 48.59 (+4.16s | 7.9%)

438

Back 100 Y

2:08.84

02/15/2025

B: 1:45.79 (+23.05s | 17.9%)

307

50 Back

1:03.09

100 Back

1:05.75

2:08.84

100 Back

2:08.84

Breast 25 Y

34.68

01/05/2025

319

Breast 50 Y

1:07.48

02/15/2025

B: 54.59 (+12.89s | 19.1%)

443

Breast 100 Y

2:27.24

02/15/2025

B: 2:00.29 (+26.95s | 18.3%)

273

50 Breast

1:09.62

100 Breast

1:17.62

2:27.24

100 Breast

2:27.24

Fly 50 Y

1:00.81

01/04/2026

B: 48.39 (+12.42s | 20.4%)

323

IM 100 Y

2:05.12

12/19/2025

B: 1:44.29 (+20.83s | 16.6%)

399

50 IM

59.78

100 IM

1:05.34

2:05.12

100 IM

2:05.12

Long course distance

Event

Time

Age

Date

Standard

Next Standard

Colorado Swimming

Castle Rock Swimming

Free 100 M

2:04.02

06/06/2025

B: 1:44.09 (+19.93s | 16.1%)

231

Back 100 M

2:20.97

06/06/2025

B: 2:01.59 (+19.38s | 13.7%)

212

50 Back

1:08.61

100 Back

1:12.36

2:20.97

100 Back

2:20.97

Breast 50 M

1:24.47

06/06/2025

B: 1:02.19 (+22.28s | 26.4%)

291

Above are the fastest times that Mackenzie Holzhauer has achieved in her swimming career. For each event, you can find Mackenzie's best time, the corresponding time standard, as well as how much faster Mackenzie needs to be to reach the next level. The last columns provide Mackenzie rankings at the team and LSC levels. These rankings are based on the Mackenzie'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	42.58	24.89 (+17.69s \| 41.5%)	23.89 (+18.69s \| 43.9%)	23.89 (+18.69s \| 43.9%)	23.29 (+19.29s \| 45.3%)	22.59 (+19.99s \| 46.9%)	22.79 (+19.79s \| 46.5%)	30.89 (+11.69s \| 27.5%)
Free 100 Y	1:40.71	53.99 (+46.72s \| 46.4%)	51.89 (+48.82s \| 48.5%)	51.89 (+48.82s \| 48.5%)	50.39 (+50.32s \| 50.0%)	49.29 (+51.42s \| 51.1%)	49.69 (+51.02s \| 50.7%)	1:08.19 (+32.52s \| 32.3%)
Back 50 Y	52.75	N/A	N/A	N/A	N/A	N/A	N/A	36.49 (+16.26s \| 30.8%)
Back 100 Y	2:08.84	59.49 (+69.35s \| 53.8%)	57.09 (+71.75s \| 55.7%)	57.09 (+71.75s \| 55.7%)	55.09 (+73.75s \| 57.2%)	53.89 (+74.95s \| 58.2%)	54.49 (+74.35s \| 57.7%)	1:17.89 (+50.95s \| 39.5%)
Breast 50 Y	1:07.48	N/A	N/A	N/A	N/A	N/A	N/A	40.39 (+27.09s \| 40.1%)
Breast 100 Y	2:27.24	1:07.59 (+79.65s \| 54.1%)	1:05.49 (+81.75s \| 55.5%)	1:05.49 (+81.75s \| 55.5%)	1:03.09 (+84.15s \| 57.2%)	1:01.79 (+85.45s \| 58.0%)	1:02.79 (+84.45s \| 57.4%)	1:27.99 (+59.25s \| 40.2%)
Fly 50 Y	1:00.81	N/A	N/A	N/A	N/A	N/A	N/A	35.09 (+25.72s \| 42.3%)
IM 100 Y	2:05.12	N/A	N/A	N/A	N/A	N/A	N/A	1:17.69 (+47.43s \| 37.9%)

Long Course Distance

Event	Best Time	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ	SouthWestern Age Group Regional
Free 100 M	2:04.02	1:01.89 (+62.13s \| 50.1%)	59.29 (+64.73s \| 52.2%)	59.29 (+64.73s \| 52.2%)	58.19 (+65.83s \| 53.1%)	56.99 (+67.03s \| 54.0%)	57.59 (+66.43s \| 53.6%)	1:17.49 (+46.53s \| 37.5%)
Back 100 M	2:20.97	1:09.49 (+71.48s \| 50.7%)	1:06.79 (+74.18s \| 52.6%)	1:06.79 (+74.18s \| 52.6%)	1:04.79 (+76.18s \| 54.0%)	1:03.69 (+77.28s \| 54.8%)	1:04.39 (+76.58s \| 54.3%)	1:30.29 (+50.68s \| 36.0%)
Breast 50 M	1:24.47	N/A	N/A	N/A	N/A	N/A	N/A	46.19 (+38.28s \| 45.3%)

Progression

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Meets

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

Event

Time

Progress

Standard

Next Standard

Age

Heat

Lane

Ranking

2026 CO AAC Sprint Eliminator Invite

01/04/2026

Aurora

50 Y Fly

1:00.81

-4.54s (New PB)

B: 48.39 (+12.42s | 20.4%)

50 Y Back

52.75

-1.19s (New PB)

B: 48.59 (+4.16s | 7.9%)

50 Y Free

42.58

-2.00s (New PB)

B: 39.79 (+2.79s | 6.6%)

2025 CO Falfins Holiday Open

12/19/2025

U.S. Air Force Acade

100 Y IM

2:05.12

B: 1:44.29 (+20.83s | 16.6%)

50 IM

59.78

100 IM

1:05.34

2:05.12

100 IM

2:05.12

50 Y Back

53.94

-1.65s (New PB)

B: 48.59 (+5.35s | 9.9%)

100 Y Free

1:40.71

-1.38s (New PB)

B: 1:30.79 (+9.92s | 9.9%)

50 Y Fly

1:05.35

B: 48.39 (+16.96s | 26.0%)

2025 CO FAST June Bonanza

06/06/2025

Fort Collins

100 M Back

2:20.97

B: 2:01.59 (+19.38s | 13.7%)

50 Back

1:08.61

100 Back

1:12.36

2:20.97

100 Back

2:20.97

100 M Free

2:04.02

B: 1:44.09 (+19.93s | 16.1%)

50 M Breast

1:24.47

B: 1:02.19 (+22.28s | 26.4%)

2025 CO Aces Winter Open

02/15/2025

Centennial

50 Y Free

46.77

+2.19s

B: 39.79 (+6.98s | 14.9%)

100 Y Back

2:08.84

-14.39s (New PB)

B: 1:45.79 (+23.05s | 17.9%)

50 Back

1:03.09

100 Back

1:05.75

2:08.84

100 Back

2:08.84

50 Y Breast

1:07.48

-5.33s (New PB)

B: 54.59 (+12.89s | 19.1%)

100 Y Free

1:42.09

-15.81s (New PB)

B: 1:30.79 (+11.30s | 11.1%)

50 Free

1:42.16

100 Free

0.-7

1:42.09

100 Free

1:42.09

100 Y Breast

2:27.24

-7.01s (New PB)

B: 2:00.29 (+26.95s | 18.3%)

50 Breast

1:09.62

100 Breast

1:17.62

2:27.24

100 Breast

2:27.24

50 Y Back

55.59

-4.02s (New PB)

B: 48.59 (+7.00s | 12.6%)

2025 CO FAST Winter Open

01/24/2025

Fort Collins

50 Y Free

44.58

-5.74s (New PB)

B: 39.79 (+4.79s | 10.7%)

50 Y Back

1:00.99

+1.38s

B: 48.59 (+12.40s | 20.3%)

100 Y Breast

2:34.25

-4.24s (New PB)

B: 2:00.29 (+33.96s | 22.0%)

50 Breast

1:14.01

100 Breast

1:20.24

2:34.25

100 Breast

2:34.25

2025 CO AAC 12 U Sprint Eliminator Invit

01/05/2025

Aurora

25 Y Breast

34.68

50 Y Free

50.78

+0.46s

B: 39.79 (+10.99s | 21.6%)

25 Y Back

28.38

2024 CO Falfins Holiday Open

12/13/2024

Colorado Springs

50 Y Back

1:11.87

+12.26s

B: 48.59 (+23.28s | 32.4%)

50 Y Breast

1:18.85

+6.04s

B: 54.59 (+24.26s | 30.8%)

100 Y Free

2:05.49

+7.59s

B: 1:30.79 (+34.70s | 27.7%)

50 Free

58.27

100 Free

1:07.22

2:05.49

100 Free

2:05.49

50 Y Free

50.32

-0.62s (New PB)

B: 39.79 (+10.53s | 20.9%)

100 Y Back

2:23.23

B: 1:45.79 (+37.44s | 26.1%)

50 Back

1:09.61

100 Back

1:13.62

2:23.23

100 Back

2:23.23

2024 CO Pikes Peak Finals

11/08/2024

Colorado Springs

100 Y Breast

2:38.49

B: 2:00.29 (+38.20s | 24.1%)

50 Breast

1:14.72

100 Breast

1:23.77

2:38.49

100 Breast

2:38.49

50 Y Free

50.94

-5.39s (New PB)

B: 39.79 (+11.15s | 21.9%)

100 Y Free

1:57.90

-9.94s (New PB)

B: 1:30.79 (+27.11s | 23.0%)

2024 O ROCK Monster Mash

10/30/2024

Castle Rock

100 Y Free

2:07.84

B: 1:30.79 (+37.05s | 29.0%)

50 Free

54.81

100 Free

1:13.03

2:07.84

100 Free

2:07.84

2024 CO ROCK Black Blue Showdown

09/26/2024

Castle Rock

50 Y Free

56.33

B: 39.79 (+16.54s | 29.4%)

50 Y Breast

1:12.81

B: 54.59 (+18.22s | 25.0%)

50 Y Back

59.61

B: 48.59 (+11.02s | 18.5%)

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.