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BOSTON MARATHON 2025

Jennifer Kaloupek

Bib: 30025•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F45-49)
#0 / 1813
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
10:09/mi
31:31
↑ 97↓ 3451.5%
10K· 6.21 mi
10:24/mi
1:03:50
↑ 79↓ 1380.4%
15K· 9.32 mi
10:44/mi
1:37:11
↑ 67↓ 78
20K· 12.43 mi
11:47/mi
2:13:49
↑ 106↓ 860.1%
Half· 13.11 mi
11:55/mi
2:21:57
↑ 19↓ 370.5%
25K· 15.53 mi
11:47/mi
2:50:30
↑ 66↓ 880.2%
30K· 18.64 mi
12:30/mi
3:29:20
↑ 181↓ 1480.2%
20M
12:06/mi
3:45:46
↑ 64↓ 500.2%
21M
13:24/mi
3:59:10
↑ 106↓ 241.6%
35K· 21.75 mi
11:47/mi
4:07:59
↑ 17↓ 861.7%
23M
12:18/mi
4:23:23
↑ 23↓ 630.6%
24M
14:52/mi
4:38:15
↓ 821.3%
40K· 24.85 mi
12:20/mi
4:48:48
↓ 200.3%
25.2M
13:49/mi
4:53:34
↑ 13↓ 160.2%
Finish· 26.22 mi
11:08/mi
5:04:55
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:21:57
Pace10:50 /mi
2nd Half
Distance13.11 mi
Time2:42:58
Pace12:26 /mi
📊Positive Split: 14.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:57:2131:3110:0931:31
10:09
-
10K
6.21 mi12:29:401:03:5010:1632:19
10:24
+0:15
15K
9.32 mi13:03:011:37:1110:2633:21
10:44
+0:20
20K
12.43 mi13:39:392:13:4910:4636:38
11:47
+1:03
Half
13.11 mi13:47:472:21:5710:508:08
11:55
+0:08
25K
15.53 mi14:16:202:50:3010:5928:33
11:47
-0:08
30K
18.64 mi14:55:103:29:2011:1438:50
12:30
+0:43
20M
20.00 mi15:11:363:45:4611:1716:26
12:06
-0:24
21M
21.00 mi15:25:003:59:1011:2313:24
13:24
+1:18
35K
21.75 mi15:33:494:07:5911:248:49
11:47
-1:37
23M
23.00 mi15:49:134:23:2311:2715:24
12:18
+0:31
24M
24.00 mi16:04:054:38:1511:3614:52
14:52
+2:34
40K
24.85 mi16:14:384:48:4811:3710:33
12:20
-2:32
25.2M
25.20 mi16:19:244:53:3411:394:46
13:49
+1:29
Finish
26.22 mi16:30:455:04:5511:3811:21
11:08
-2:41

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

10:09 /mi

Average Pace

11:38 /mi

Slowest Pace

14:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:48:32

36% of race

Time at Steady Pace

2:43:21

54% of race

Time at Slower Pace

33:02

11% of race

Average Pace: 11:38 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:57:2131:3110:0931:31
10:09
#25929
10K
6.21 mi12:29:401:03:5010:1632:19
10:24
#26048
15K
9.32 mi13:03:011:37:1110:2633:21
10:44
#26140
20K
12.43 mi13:39:392:13:4910:4636:38
11:47
#26439
Half
13.11 mi13:47:472:21:5710:508:08
11:55
#26512
25K
15.53 mi14:16:202:50:3010:5928:33
11:47
#26457
30K
18.64 mi14:55:103:29:2011:1438:50
12:30
#26432
20M
20.00 mi15:11:363:45:4611:1716:26
12:06
#26358
21M
21.00 mi15:25:003:59:1011:2313:24
13:24
#26332
35K
21.75 mi15:33:494:07:5911:248:49
11:47
#26306
23M
23.00 mi15:49:134:23:2311:2715:24
12:18
#26266
24M
24.00 mi16:04:054:38:1511:3614:52
14:52
#26416
40K
24.85 mi16:14:384:48:4811:3710:33
12:20
#26388
25.2M
25.20 mi16:19:244:53:3411:394:46
13:49
#26396
Finish
26.22 mi16:30:455:04:5511:3811:21
11:08
#26373
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi25929107221072226301(Top 93%)10946(Top 90%)10946(Top 604%)
10K6.21 mi3.10 mi26048-11910803-8110803-8126097(Top 92%)10841(Top 89%)10841(Top 598%)
15K9.32 mi3.11 mi26140-9210858-5510858-5526301(Top 93%)10946(Top 90%)10946(Top 604%)
20K12.43 mi3.11 mi26439-29911035-17711035-17726923(Top 95%)11345(Top 93%)11345(Top 626%)
Half13.11 mi0.68 mi26512-7311075-4011075-4027384(Top 96%)11635(Top 95%)11635(Top 642%)
25K15.53 mi2.42 mi26457+5511052+2311052+2326180(Top 92%)10963(Top 90%)10963(Top 605%)
30K18.64 mi3.11 mi26432+2511064-1211064-1226178(Top 92%)11045(Top 90%)11045(Top 609%)
20M20.00 mi1.36 mi26358+7411043+2111043+2125382(Top 89%)10695(Top 87%)10695(Top 590%)
21M21.00 mi1.00 mi26332+2611035+811035+825552(Top 90%)10835(Top 89%)10835(Top 598%)
35K21.75 mi0.75 mi26306+26110351103525533(Top 90%)10867(Top 89%)10867(Top 599%)
23M23.00 mi1.25 mi26266+4011020+1511020+1525532(Top 90%)10877(Top 89%)10877(Top 600%)
24M24.00 mi1.00 mi26416-15011104-8411104-8428017(Top 99%)12104(Top 99%)12104(Top 668%)
40K24.85 mi0.85 mi26388+2811098+611098+625421(Top 89%)10876(Top 89%)10876(Top 600%)
25.2M25.20 mi0.35 mi26396-811103-511103-526051(Top 92%)11209(Top 92%)11209(Top 618%)
Finish26.22 mi1.02 mi26373+2311098+511098+525603(Top 90%)10960(Top 90%)10960(Top 605%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 93%
×21story building
+97ft-345ft

Overall

26301

Females

10946

F45-49

10946

5K→10K

3.1 - 6.2 mi

Top 92%
×5story building
+79ft-138ft

Overall

26097

Females

10841

F45-49

10841

10K→15K

6.2 - 9.3 mi

Top 93%
×3story building
+67ft-78ft

Overall

26301

Females

10946

F45-49

10946

15K→20K

9.3 - 12.4 mi

Top 95%
×5story building
+106ft-86ft

Overall

26923

Females

11345

F45-49

11345

20K→Half

12.4 - 13.1 mi

Top 96%
×2story building
+19ft-37ft

Overall

27384

Females

11635

F45-49

11635

Half→25K

13.1 - 15.5 mi

Top 92%
×4story building
+66ft-88ft

Overall

26180

Females

10963

F45-49

10963

25K→30K

15.5 - 18.6 mi

Top 92%
×9story building
+181ft-148ft

Overall

26178

Females

11045

F45-49

11045

30K→20M

18.6 - 20.0 mi

Top 89%
×5story building
+64ft-50ft

Overall

25382

Females

10695

F45-49

10695

20M→21M

20.0 - 21.0 mi

Top 90%
×8story building
+106ft-24ft

Overall

25552

Females

10835

F45-49

10835

21M→35K

21.0 - 21.8 mi

Top 90%
×7story building
+17ft-86ft

Overall

25533

Females

10867

F45-49

10867

35K→23M

21.8 - 23.0 mi

Top 90%
×5story building
+23ft-63ft

Overall

25532

Females

10877

F45-49

10877

23M→24M

23.0 - 24.0 mi

Top 99%
×6story building
+12ft-82ft

Overall

28017

Females

12104

F45-49

12104

24M→40K

24.0 - 24.9 mi

Top 89%
×1story
+6ft-20ft

Overall

25421

Females

10876

F45-49

10876

40K→25.2M

24.9 - 25.2 mi

Top 92%
×1story
+13ft-16ft

Overall

26051

Females

11209

F45-49

11209

25.2M→Finish

25.2 - 26.2 mi

Top 90%
×2story building
+22ft-21ft

Overall

25603

Females

10960

F45-49

10960

Passing Analysis

Category:
Athletes Passed
819
Passed By
1263
Net Change
-444
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25929
5K → 10K133252-119#25929#26048
10K → 15K92184-92#26048#26140
15K → 20K48347-299#26140#26439
20K → Half477-73#26439#26512
Half → 25K10550+55#26512#26457
25K → 30K11691+25#26457#26432
30K → 20M8511+74#26432#26358
20M → 21M5529+26#26358#26332
21M → 35K3711+26#26332#26306
35K → 23M5414+40#26306#26266
23M → 24M5155-150#26266#26416
24M → 40K4517+28#26416#26388
40K → 25.2M513-8#26388#26396
25.2M → Finish3512+23#26396#26373
TOTALS8191263-444
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing