Mackenzie Marrero

Age: 12 years old
Age Category: 11-12
Team: New Jersey Race Club | New Jersey Swimming

Personal Best

Short course distance

Event

Time

Age

Date

Standard

Next Standard

New Jersey Race Club

New Jersey Swimming

Eastern Zone

USA

Free 50 Y

28.04

03/19/2026

AAA: 26.99 (+1.05s | 3.7%)

Rankings

Free 100 Y

1:01.24

Analysis

01/16/2026

AAA: 58.69 (+2.55s | 4.2%)

Rankings

50 Free

29.48

100 Free

31.76

1:01.24

100 Free

1:01.24

Free 500 Y

6:06.05

Analysis

01/16/2026

AA: 5:58.89 (+7.16s | 2.0%)

Rankings

50 Free

32.18

100 Free

36.40

1:08.59

100 Free

1:08.59

150 Free

37.31

1:45.90

200 Free

37.19

2:23.09

100 Free

1:14.50

250 Free

37.85

3:00.94

300 Free

38.53

3:39.47

100 Free

1:16.38

350 Free

37.69

4:17.16

400 Free

38.03

4:55.19

100 Free

1:15.72

450 Free

36.60

5:31.79

500 Free

34.26

6:06.05

100 Free

1:10.86

Back 50 Y

32.28

03/19/2026

AA: 31.79 (+0.49s | 1.5%)

Rankings

Back 200 Y

2:38.68

Analysis

01/16/2026

A: 2:33.89 (+4.79s | 3.0%)

Rankings

50 Back

37.26

100 Back

41.06

1:18.32

100 Back

1:18.32

150 Back

42.23

2:00.55

200 Back

38.13

2:38.68

100 Back

1:20.36

Breast 50 Y

34.98

03/19/2026

AAA: 34.59 (+0.39s | 1.1%)

Rankings

Breast 100 Y

1:17.62

Analysis

01/16/2026

AAA: 1:15.09 (+2.53s | 3.3%)

Rankings

50 Breast

36.57

100 Breast

41.05

1:17.62

100 Breast

1:17.62

Breast 200 Y

2:56.95

Analysis

01/16/2026

A: 2:56.29 (+0.66s | 0.4%)

Rankings

50 Breast

39.10

100 Breast

44.60

1:23.70

100 Breast

1:23.70

150 Breast

48.28

2:11.98

200 Breast

44.97

2:56.95

100 Breast

1:33.25

Fly 50 Y

31.26

03/19/2026

AA: 30.29 (+0.97s | 3.1%)

Rankings

IM 100 Y

1:09.05

Analysis

03/19/2026

AAA: 1:06.99 (+2.06s | 3.0%)

Rankings

50 IM

31.68

100 IM

37.37

1:09.05

100 IM

1:09.05

IM 200 Y

2:30.82

Analysis

01/16/2026

AAA: 2:24.49 (+6.33s | 4.2%)

Rankings

50 Fly

33.39

100 Back

39.15

1:12.54

100 IM

1:12.54

150 Breast

44.09

1:56.63

200 Free

34.19

2:30.82

100 IM

1:18.28

Long course distance

Event

Time

Age

Date

Standard

Next Standard

New Jersey Race Club

New Jersey Swimming

Eastern Zone

USA

Free 50 M

33.54

07/24/2025

A: 33.19 (+0.35s | 1.0%)

Rankings

Free 100 M

1:08.69

Analysis

05/30/2026

AAA: 1:07.19 (+1.50s | 2.2%)

Rankings

50 Free

33.01

100 Free

35.68

1:08.69

100 Free

1:08.69

Back 50 M

39.16

07/24/2025

A: 38.39 (+0.77s | 2.0%)

Rankings

Breast 50 M

39.41

05/30/2026

AAA: 39.09 (+0.32s | 0.8%)

Rankings

Breast 100 M

1:28.93

Analysis

05/30/2026

AAA: 1:25.89 (+3.04s | 3.4%)

Rankings

50 Breast

42.34

100 Breast

46.59

1:28.93

100 Breast

1:28.93

Above are the fastest times that Mackenzie Marrero 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
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	28.04	24.89 (+3.15s \| 11.2%) 25.69 (+2.35s \| 8.4%)	23.89 (+4.15s \| 14.8%)	23.89 (+4.15s \| 14.8%)	23.29 (+4.75s \| 16.9%)	22.49 (+5.55s \| 19.8%)	22.79 (+5.25s \| 18.7%)
Free 100 Y	1:01.24	53.99 (+7.25s \| 11.8%) 55.49 (+5.75s \| 9.4%)	51.89 (+9.35s \| 15.3%)	51.89 (+9.35s \| 15.3%)	50.39 (+10.85s \| 17.7%)	48.99 (+12.25s \| 20.0%)	49.69 (+11.55s \| 18.9%)
Free 500 Y	6:06.05	5:10.69 (+55.36s \| 15.1%) 5:19.49 (+46.56s \| 12.7%)	5:02.59 (+63.46s \| 17.3%)	5:02.59 (+63.46s \| 17.3%)	4:53.59 (+72.46s \| 19.8%)	4:44.49 (+81.56s \| 22.3%)	4:48.09 (+77.96s \| 21.3%)
Back 50 Y	32.28	27.59 (+4.69s \| 14.5%) 28.29 (+3.99s \| 12.4%)	N/A	N/A	N/A	24.39 (+7.89s \| 24.4%)	N/A
Back 200 Y	2:38.68	2:08.59 (+30.09s \| 19.0%) 2:12.29 (+26.39s \| 16.6%)	2:04.19 (+34.49s \| 21.7%)	2:04.19 (+34.49s \| 21.7%)	1:59.39 (+39.29s \| 24.8%)	1:55.39 (+43.29s \| 27.3%)	1:57.69 (+40.99s \| 25.8%)
Breast 50 Y	34.98	30.99 (+3.99s \| 11.4%) 31.89 (+3.09s \| 8.8%)	N/A	N/A	N/A	27.99 (+6.99s \| 20.0%)	N/A
Breast 100 Y	1:17.62	1:07.59 (+10.03s \| 12.9%) 1:09.49 (+8.13s \| 10.5%)	1:05.49 (+12.13s \| 15.6%)	1:05.49 (+12.13s \| 15.6%)	1:03.09 (+14.53s \| 18.7%)	1:00.79 (+16.83s \| 21.7%)	1:02.79 (+14.83s \| 19.1%)
Breast 200 Y	2:56.95	2:28.19 (+28.76s \| 16.3%) 2:32.39 (+24.56s \| 13.9%)	2:22.69 (+34.26s \| 19.4%)	2:22.69 (+34.26s \| 19.4%)	2:17.19 (+39.76s \| 22.5%)	2:11.99 (+44.96s \| 25.4%)	2:15.49 (+41.46s \| 23.4%)
Fly 50 Y	31.26	27.09 (+4.17s \| 13.3%) 27.69 (+3.57s \| 11.4%)	N/A	N/A	N/A	24.09 (+7.17s \| 22.9%)	N/A
IM 100 Y	1:09.05	N/A	N/A	N/A	N/A	N/A	N/A
IM 200 Y	2:30.82	2:10.49 (+20.33s \| 13.5%) 2:14.19 (+16.63s \| 11.0%)	2:06.39 (+24.43s \| 16.2%)	2:06.39 (+24.43s \| 16.2%)	2:02.19 (+28.63s \| 19.0%)	1:58.39 (+32.43s \| 21.5%)	2:00.59 (+30.23s \| 20.0%)

Long Course Distance

Event	Best Time	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ	U.S. Olympic Team Trials
Free 50 M	33.54	28.69 (+4.85s \| 14.5%) 29.49 (+4.05s \| 12.1%)	27.39 (+6.15s \| 18.3%)	27.39 (+6.15s \| 18.3%)	26.89 (+6.65s \| 19.8%)	26.19 (+7.35s \| 21.9%)	26.59 (+6.95s \| 20.7%)	25.69 (+7.85s \| 23.4%)
Free 100 M	1:08.69	1:01.89 (+6.80s \| 9.9%) 1:03.69 (+5.00s \| 7.3%)	59.29 (+9.40s \| 13.7%)	59.29 (+9.40s \| 13.7%)	58.19 (+10.50s \| 15.3%)	56.79 (+11.90s \| 17.3%)	57.59 (+11.10s \| 16.2%)	55.79 (+12.90s \| 18.8%)
Back 50 M	39.16	32.39 (+6.77s \| 17.3%) 32.89 (+6.27s \| 16.0%)	N/A	N/A	N/A	29.19 (+9.97s \| 25.5%)	N/A	28.89 (+10.27s \| 26.2%)
Breast 50 M	39.41	36.59 (+2.82s \| 7.2%) 37.09 (+2.32s \| 5.9%)	N/A	N/A	N/A	33.19 (+6.22s \| 15.8%)	N/A	32.09 (+7.32s \| 18.6%)
Breast 100 M	1:28.93	1:18.79 (+10.14s \| 11.4%) 1:20.99 (+7.94s \| 8.9%)	1:15.99 (+12.94s \| 14.6%)	1:15.99 (+12.94s \| 14.6%)	1:13.79 (+15.14s \| 17.0%)	1:11.79 (+17.14s \| 19.3%)	1:13.29 (+15.64s \| 17.6%)	1:10.19 (+18.74s \| 21.1%)

Progression

See how Mackenzie Marrero is improving gradually by choosing the distance and the stroke you are interested in. You can also compare the Mackenzie'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 Mackenzie Marrero 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 Scarlet Heat Madness

05/30/2026

Piscataway

100 M Free

1:08.69

AAA: 1:07.19 (+1.50s | 2.2%)

50 Free

33.01

100 Free

35.68

1:08.69

100 Free

1:08.69

50 M Breast

39.41

AAA: 39.09 (+0.32s | 0.8%)

100 M Breast

1:28.93

-5.40s (New PB)

AAA: 1:25.89 (+3.04s | 3.4%)

50 Breast

42.34

100 Breast

46.59

1:28.93

100 Breast

1:28.93

2026 NJS Scarlet 11 Over Gold Champs

03/19/2026

New Brunswick

50 Y Breast

34.98

AAA: 34.59 (+0.39s | 1.1%)

100 Y Breast

1:18.94

+1.32s

AA: 1:18.59 (+0.35s | 0.4%)

50 Breast

36.66

100 Breast

42.28

1:18.94

100 Breast

1:18.94

200 Y IM

2:38.90

+8.08s

A: 2:37.59 (+1.31s | 0.8%)

50 Fly

34.63

100 Back

39.69

1:14.32

100 IM

1:14.32

150 Breast

47.24

2:01.56

200 Free

37.34

2:38.90

100 IM

1:24.58

50 Y Back

32.28

AA: 31.79 (+0.49s | 1.5%)

100 Y Free

1:02.89

+1.65s

AA: 1:01.39 (+1.50s | 2.4%)

50 Free

30.15

100 Free

32.74

1:02.89

100 Free

1:02.89

50 Y Fly

31.26

AA: 30.29 (+0.97s | 3.1%)

100 Y IM

1:09.05

AAA: 1:06.99 (+2.06s | 3.0%)

50 IM

31.68

100 IM

37.37

1:09.05

100 IM

1:09.05

50 Y Free

28.04

AAA: 26.99 (+1.05s | 3.7%)

ISCA January Classic 2026

01/16/2026

Hampton

200 Y Breast

2:56.95

A: 2:56.29 (+0.66s | 0.4%)

50 Breast

39.10

100 Breast

44.60

1:23.70

100 Breast

1:23.70

150 Breast

48.28

2:11.98

200 Breast

44.97

2:56.95

100 Breast

1:33.25

200 Y IM

2:30.82

AAA: 2:24.49 (+6.33s | 4.2%)

50 Fly

33.39

100 Back

39.15

1:12.54

100 IM

1:12.54

150 Breast

44.09

1:56.63

200 Free

34.19

2:30.82

100 IM

1:18.28

100 Y Breast

1:17.62

AAA: 1:15.09 (+2.53s | 3.3%)

50 Breast

36.57

100 Breast

41.05

1:17.62

100 Breast

1:17.62

500 Y Free

6:06.05

AA: 5:58.89 (+7.16s | 2.0%)

50 Free

32.18

100 Free

36.40

1:08.59

100 Free

1:08.59

150 Free

37.31

1:45.90

200 Free

37.19

2:23.09

100 Free

1:14.50

250 Free

37.85

3:00.94

300 Free

38.53

3:39.47

100 Free

1:16.38

350 Free

37.69

4:17.16

400 Free

38.03

4:55.19

100 Free

1:15.72

450 Free

36.60

5:31.79

500 Free

34.26

6:06.05

100 Free

1:10.86

200 Y Back

2:38.68

A: 2:33.89 (+4.79s | 3.0%)

50 Back

37.26

100 Back

41.06

1:18.32

100 Back

1:18.32

150 Back

42.23

2:00.55

200 Back

38.13

2:38.68

100 Back

1:20.36

100 Y Free

1:01.24

AAA: 58.69 (+2.55s | 4.2%)

50 Free

29.48

100 Free

31.76

1:01.24

100 Free

1:01.24

2025 NJ Swim LC Gold Championships

07/24/2025

Piscataway

50 M Back

39.16

A: 38.39 (+0.77s | 2.0%)

100 M Breast

1:34.33

A: 1:33.99 (+0.34s | 0.4%)

50 Breast

43.57

100 Breast

50.76

1:34.33

100 Breast

1:34.33

50 M Free

33.54

A: 33.19 (+0.35s | 1.0%)

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.