Harper Posthumus

Age: 10 years old
Age Category: 10 & under
Team: Egra Waves | Michigan Swimming

Personal Best

Short course distance

Event

Time

Age

Date

Standard

Next Standard

Egra Waves

Michigan Swimming

Central Zone

USA

Free 50 Y

33.63

11/15/2025

A: 32.09 (+1.54s | 4.6%)

149

288

1,000+

Free 100 Y

1:14.56

12/05/2025

A: 1:11.49 (+3.07s | 4.1%)

115

209

1,000+

50 Free

35.37

100 Free

39.19

1:14.56

100 Free

1:14.56

Free 200 Y

2:42.70

02/07/2026

A: 2:38.39 (+4.31s | 2.6%)

140

1,000+

50 Free

37.05

100 Free

42.78

1:19.83

100 Free

1:19.83

150 Free

42.40

2:02.23

200 Free

40.47

2:42.70

100 Free

1:22.87

Free 500 Y

7:07.26

12/05/2025

A: 6:53.39 (+13.87s | 3.2%)

701

50 Free

36.91

100 Free

42.55

1:19.46

100 Free

1:19.46

150 Free

43.98

2:03.44

200 Free

43.60

2:47.04

100 Free

1:27.58

250 Free

43.40

3:30.44

300 Free

44.01

4:14.45

100 Free

1:27.41

350 Free

44.80

4:59.25

400 Free

44.64

5:43.89

100 Free

1:29.44

450 Free

43.94

6:27.83

500 Free

39.43

7:07.26

100 Free

1:23.37

Back 50 Y

41.59

02/07/2026

A: 37.99 (+3.60s | 8.7%)

181

384

1,000+

Back 100 Y

1:32.75

11/15/2025

A: 1:22.29 (+10.46s | 11.3%)

160

362

1,000+

50 Back

46.45

100 Back

46.30

1:32.75

100 Back

1:32.75

Breast 50 Y

47.77

12/05/2025

A: 42.79 (+4.98s | 10.4%)

171

336

1,000+

Breast 100 Y

1:39.34

02/07/2026

A: 1:33.59 (+5.75s | 5.8%)

189

1,000+

50 Breast

46.71

100 Breast

52.63

1:39.34

100 Breast

1:39.34

Fly 50 Y

45.05

10/17/2025

BB: 42.69 (+2.36s | 5.2%)

226

465

1,000+

IM 200 Y

3:14.35

11/15/2025

A: 2:55.49 (+18.86s | 9.7%)

197

1,000+

50 Fly

47.84

100 Back

49.56

1:37.40

100 IM

1:37.40

150 Breast

55.10

2:32.50

200 Free

41.84

3:14.35

100 IM

1:36.95

Long course distance

Event	Time		Age	Date	Standard	Next Standard	Egra Waves	Michigan Swimming	Central Zone	USA

Above are the fastest times that Harper Posthumus has achieved in her swimming career. For each event, you can find Harper's best time, the corresponding time standard, as well as how much faster Harper needs to be to reach the next level. The last columns provide Harper rankings at the team and LSC levels. These rankings are based on the Harper'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	33.63	24.89 (+8.74s \| 26.0%)	23.89 (+9.74s \| 29.0%)	23.89 (+9.74s \| 29.0%)	23.29 (+10.34s \| 30.7%)	22.59 (+11.04s \| 32.8%)	22.79 (+10.84s \| 32.2%)	30.89 (+2.74s \| 8.1%)
Free 100 Y	1:14.56	53.99 (+20.57s \| 27.6%)	51.89 (+22.67s \| 30.4%)	51.89 (+22.67s \| 30.4%)	50.39 (+24.17s \| 32.4%)	49.29 (+25.27s \| 33.9%)	49.69 (+24.87s \| 33.4%)	1:08.19 (+6.37s \| 8.5%)
Free 200 Y	2:42.70	1:56.29 (+46.41s \| 28.5%)	1:52.89 (+49.81s \| 30.6%)	1:52.29 (+50.41s \| 31.0%)	1:49.09 (+53.61s \| 33.0%)	1:46.69 (+56.01s \| 34.4%)	1:47.39 (+55.31s \| 34.0%)	2:29.09 (+13.61s \| 8.4%)
Free 500 Y	7:07.26	5:10.69 (+116.57s \| 27.3%)	5:02.59 (+124.67s \| 29.2%)	5:02.59 (+124.67s \| 29.2%)	4:53.09 (+134.17s \| 31.4%)	4:45.99 (+141.27s \| 33.1%)	4:48.09 (+139.17s \| 32.6%)	6:31.39 (+35.87s \| 8.4%)
Back 50 Y	41.59	N/A	N/A	N/A	N/A	N/A	N/A	36.49 (+5.10s \| 12.3%)
Back 100 Y	1:32.75	59.49 (+33.26s \| 35.9%)	57.09 (+35.66s \| 38.4%)	57.09 (+35.66s \| 38.4%)	55.09 (+37.66s \| 40.6%)	53.89 (+38.86s \| 41.9%)	54.49 (+38.26s \| 41.3%)	1:17.89 (+14.86s \| 16.0%)
Breast 50 Y	47.77	N/A	N/A	N/A	N/A	N/A	N/A	40.39 (+7.38s \| 15.4%)
Breast 100 Y	1:39.34	1:07.59 (+31.75s \| 32.0%)	1:05.49 (+33.85s \| 34.1%)	1:05.49 (+33.85s \| 34.1%)	1:03.09 (+36.25s \| 36.5%)	1:01.79 (+37.55s \| 37.8%)	1:02.79 (+36.55s \| 36.8%)	1:27.99 (+11.35s \| 11.4%)
Fly 50 Y	45.05	N/A	N/A	N/A	N/A	N/A	N/A	35.09 (+9.96s \| 22.1%)
IM 200 Y	3:14.35	2:10.49 (+63.86s \| 32.9%)	2:06.39 (+67.96s \| 35.0%)	2:06.39 (+67.96s \| 35.0%)	2:02.19 (+72.16s \| 37.1%)	1:59.49 (+74.86s \| 38.5%)	2:00.59 (+73.76s \| 38.0%)	2:46.49 (+27.86s \| 14.3%)

Long Course Distance

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

Progression

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

Event

Time

Progress

Standard

Next Standard

Age

Heat

Lane

Ranking

2026 Grand Rapids Open

02/07/2026

Kentwood

200 Y Free

2:42.70

-3.33s (New PB)

B: 2:42.59 (+0.11s | 0.1%)

50 Free

37.05

100 Free

42.78

1:19.83

100 Free

1:19.83

150 Free

42.40

2:02.23

200 Free

40.47

2:42.70

100 Free

1:22.87

100 Y Breast

1:39.34

-7.84s (New PB)

B: 1:36.49 (+2.85s | 2.9%)

50 Breast

46.71

100 Breast

52.63

1:39.34

100 Breast

1:39.34

50 Y Back

41.59

-0.57s (New PB)

B: 38.79 (+2.80s | 6.7%)

EGRA 2025 Winter Washout

12/05/2025

Grand Rapids

50 Y Breast

47.77

-2.26s (New PB)

B: 43.99 (+3.78s | 7.9%)

100 Y Free

1:14.56

-0.28s (New PB)

BB: 1:09.39 (+5.17s | 6.9%)

50 Free

35.37

100 Free

39.19

1:14.56

100 Free

1:14.56

50 Y Back

42.16

-1.41s (New PB)

B: 38.79 (+3.37s | 8.0%)

500 Y Free

7:07.26

BB: 6:45.69 (+21.57s | 5.0%)

50 Free

36.91

100 Free

42.55

1:19.46

100 Free

1:19.46

150 Free

43.98

2:03.44

200 Free

43.60

2:47.04

100 Free

1:27.58

250 Free

43.40

3:30.44

300 Free

44.01

4:14.45

100 Free

1:27.41

350 Free

44.80

4:59.25

400 Free

44.64

5:43.89

100 Free

1:29.44

450 Free

43.94

6:27.83

500 Free

39.43

7:07.26

100 Free

1:23.37

2025 GR Gales Of November Open Invitational

11/15/2025

Kentwood

100 Y Breast

1:47.18

BB: 1:46.89 (+0.29s | 0.3%)

50 Breast

50.80

100 Breast

56.38

1:47.18

100 Breast

1:47.18

50 Y Breast

50.50

+0.47s

BB: 48.69 (+1.81s | 3.6%)

100 Y Back

1:32.75

-0.77s (New PB)

A: 1:22.29 (+10.46s | 11.3%)

50 Back

46.45

100 Back

46.30

1:32.75

100 Back

1:32.75

200 Y Free

2:46.03

-1.33s (New PB)

A: 2:38.39 (+7.64s | 4.6%)

50 Free

38.22

100 Free

43.79

1:22.01

100 Free

1:22.01

150 Free

44.00

2:06.01

200 Free

40.02

2:46.03

100 Free

1:24.02

50 Y Back

43.57

BB: 43.29 (+0.28s | 0.6%)

50 Y Free

33.63

-0.32s (New PB)

A: 32.09 (+1.54s | 4.6%)

200 Y IM

3:14.35

-4.89s (New PB)

A: 2:55.49 (+18.86s | 9.7%)

50 Fly

47.84

100 Back

49.56

1:37.40

100 IM

1:37.40

150 Breast

55.10

2:32.50

200 Free

41.84

3:14.35

100 IM

1:36.95

100 Y Free

1:16.66

+1.82s

A: 1:11.49 (+5.17s | 6.7%)

50 Free

36.56

100 Free

40.10

1:16.66

100 Free

1:16.66

Greater Kalamazoo Arena Challenge

11/01/2025

Otsego

50 Y Breast

50.03

-0.27s (New PB)

BB: 48.69 (+1.34s | 2.7%)

200 Y IM

3:19.24

BB: 3:18.79 (+0.45s | 0.2%)

50 Fly

48.42

100 Back

52.03

1:40.45

100 IM

1:40.45

150 Breast

56.26

2:36.71

200 Free

42.53

3:19.24

100 IM

1:38.79

100 Y Free

1:17.85

+3.01s

A: 1:11.49 (+6.36s | 8.2%)

50 Free

37.77

100 Free

40.08

1:17.85

100 Free

1:17.85

100 Y Back

1:38.81

+5.29s

BB: 1:33.99 (+4.82s | 4.9%)

50 Back

49.23

100 Back

49.58

1:38.81

100 Back

1:38.81

2025 WMS Boo Bash

10/17/2025

Zeeland

50 Y Fly

45.05

BB: 42.69 (+2.36s | 5.2%)

100 Y Back

1:33.52

A: 1:22.29 (+11.23s | 12.0%)

50 Back

45.76

100 Back

47.76

1:33.52

100 Back

1:33.52

100 Y Free

1:14.84

A: 1:11.49 (+3.35s | 4.5%)

50 Free

35.35

100 Free

39.49

1:14.84

100 Free

1:14.84

50 Y Breast

50.30

BB: 48.69 (+1.61s | 3.2%)

200 Y Free

2:47.36

A: 2:38.39 (+8.97s | 5.4%)

50 Free

37.87

100 Free

45.15

1:23.02

100 Free

1:23.02

150 Free

44.38

2:07.40

200 Free

39.96

2:47.36

100 Free

1:24.34

50 Y Free

33.95

A: 32.09 (+1.86s | 5.5%)

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.

Event	Best Time	Sectionals	18U Spring Cup	Futures	Jrs - Winter	US Open	Summer Champ	SouthWestern Age Group Regional
Free 50 Y	33.63	24.89 (+8.74s \| 26.0%)	23.89 (+9.74s \| 29.0%)	23.89 (+9.74s \| 29.0%)	23.29 (+10.34s \| 30.7%)	22.59 (+11.04s \| 32.8%)	22.79 (+10.84s \| 32.2%)	30.89 (+2.74s \| 8.1%)
Free 100 Y	1:14.56	53.99 (+20.57s \| 27.6%)	51.89 (+22.67s \| 30.4%)	51.89 (+22.67s \| 30.4%)	50.39 (+24.17s \| 32.4%)	49.29 (+25.27s \| 33.9%)	49.69 (+24.87s \| 33.4%)	1:08.19 (+6.37s \| 8.5%)
Free 200 Y	2:42.70	1:56.29 (+46.41s \| 28.5%)	1:52.89 (+49.81s \| 30.6%)	1:52.29 (+50.41s \| 31.0%)	1:49.09 (+53.61s \| 33.0%)	1:46.69 (+56.01s \| 34.4%)	1:47.39 (+55.31s \| 34.0%)	2:29.09 (+13.61s \| 8.4%)
Free 500 Y	7:07.26	5:10.69 (+116.57s \| 27.3%)	5:02.59 (+124.67s \| 29.2%)	5:02.59 (+124.67s \| 29.2%)	4:53.09 (+134.17s \| 31.4%)	4:45.99 (+141.27s \| 33.1%)	4:48.09 (+139.17s \| 32.6%)	6:31.39 (+35.87s \| 8.4%)
Back 50 Y	41.59	N/A	N/A	N/A	N/A	N/A	N/A	36.49 (+5.10s \| 12.3%)
Back 100 Y	1:32.75	59.49 (+33.26s \| 35.9%)	57.09 (+35.66s \| 38.4%)	57.09 (+35.66s \| 38.4%)	55.09 (+37.66s \| 40.6%)	53.89 (+38.86s \| 41.9%)	54.49 (+38.26s \| 41.3%)	1:17.89 (+14.86s \| 16.0%)
Breast 50 Y	47.77	N/A	N/A	N/A	N/A	N/A	N/A	40.39 (+7.38s \| 15.4%)
Breast 100 Y	1:39.34	1:07.59 (+31.75s \| 32.0%)	1:05.49 (+33.85s \| 34.1%)	1:05.49 (+33.85s \| 34.1%)	1:03.09 (+36.25s \| 36.5%)	1:01.79 (+37.55s \| 37.8%)	1:02.79 (+36.55s \| 36.8%)	1:27.99 (+11.35s \| 11.4%)
Fly 50 Y	45.05	N/A	N/A	N/A	N/A	N/A	N/A	35.09 (+9.96s \| 22.1%)
IM 200 Y	3:14.35	2:10.49 (+63.86s \| 32.9%)	2:06.39 (+67.96s \| 35.0%)	2:06.39 (+67.96s \| 35.0%)	2:02.19 (+72.16s \| 37.1%)	1:59.49 (+74.86s \| 38.5%)	2:00.59 (+73.76s \| 38.0%)	2:46.49 (+27.86s \| 14.3%)