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BOSTON MARATHON 2025

Dena Cohen

Bib: 22632•F

WI

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
8:30/mi
26:24
↑ 97↓ 3451.5%
10K· 6.21 mi
8:37/mi
53:11
↑ 79↓ 1380.4%
15K· 9.32 mi
8:57/mi
1:20:58
↑ 67↓ 78
20K· 12.43 mi
9:36/mi
1:50:46
↑ 106↓ 860.1%
Half· 13.11 mi
9:40/mi
1:57:22
↑ 19↓ 370.5%
25K· 15.53 mi
10:27/mi
2:22:42
↑ 66↓ 880.2%
30K· 18.64 mi
11:15/mi
2:57:39
↑ 181↓ 1480.2%
20M
14:19/mi
3:17:07
↑ 64↓ 500.2%
21M
14:10/mi
3:31:17
↑ 106↓ 241.6%
35K· 21.75 mi
11:47/mi
3:40:06
↑ 17↓ 861.7%
23M
14:15/mi
3:57:56
↑ 23↓ 630.6%
24M
10:59/mi
4:08:55
↓ 821.3%
40K· 24.85 mi
12:36/mi
4:19:41
↓ 200.3%
25.2M
13:09/mi
4:24:13
↑ 13↓ 160.2%
Finish· 26.22 mi
10:38/mi
4:35:03
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:22
Pace8:57 /mi
2nd Half
Distance13.11 mi
Time2:37:41
Pace12:02 /mi
📊Positive Split: 34.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:2226:248:3026:24
8:30
-
10K
6.21 mi11:49:0953:118:3426:47
8:37
+0:07
15K
9.32 mi12:16:561:20:588:4127:47
8:57
+0:20
20K
12.43 mi12:46:441:50:468:5529:48
9:36
+0:39
Half
13.11 mi12:53:201:57:228:576:36
9:40
+0:04
25K
15.53 mi13:18:402:22:429:1125:20
10:27
+0:47
30K
18.64 mi13:53:372:57:399:3234:57
11:15
+0:48
20M
20.00 mi14:13:053:17:079:5119:28
14:19
+3:04
21M
21.00 mi14:27:153:31:1710:0414:10
14:10
-0:09
35K
21.75 mi14:36:043:40:0610:078:49
11:47
-2:23
23M
23.00 mi14:53:543:57:5610:2117:50
14:15
+2:28
24M
24.00 mi15:04:534:08:5510:2210:59
10:59
-3:16
40K
24.85 mi15:15:394:19:4110:2710:46
12:36
+1:37
25.2M
25.20 mi15:20:114:24:1310:294:32
13:09
+0:33
Finish
26.22 mi15:31:014:35:0310:3010:50
10:38
-2:31

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

8:30 /mi

Average Pace

10:30 /mi

Slowest Pace

14:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:22

43% of race

Time at Steady Pace

1:30:55

33% of race

Time at Slower Pace

1:06:46

24% of race

Average Pace: 10:29 /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 mi11:22:2226:248:3026:24
8:30
#19878
10K
6.21 mi11:49:0953:118:3426:47
8:37
#20194
15K
9.32 mi12:16:561:20:588:4127:47
8:57
#20695
20K
12.43 mi12:46:441:50:468:5529:48
9:36
#21525
Half
13.11 mi12:53:201:57:228:576:36
9:40
#21708
25K
15.53 mi13:18:402:22:429:1125:20
10:27
#22389
30K
18.64 mi13:53:372:57:399:3234:57
11:15
#22888
20M
20.00 mi14:13:053:17:079:5119:28
14:19
#23599
21M
21.00 mi14:27:153:31:1710:0414:10
14:10
#23888
35K
21.75 mi14:36:043:40:0610:078:49
11:47
#23981
23M
23.00 mi14:53:543:57:5610:2117:50
14:15
#24360
24M
24.00 mi15:04:534:08:5510:2210:59
10:59
#24334
40K
24.85 mi15:15:394:19:4110:2710:46
12:36
#24435
25.2M
25.20 mi15:20:114:24:1310:294:32
13:09
#24459
Finish
26.22 mi15:31:014:35:0310:3010:50
10:38
#24462
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi198787437743721776(Top 77%)8425(Top 69%)8425(Top 465%)
10K6.21 mi3.10 mi20194-3167591-1547591-15420464(Top 72%)7725(Top 63%)7725(Top 426%)
15K9.32 mi3.11 mi20695-5017862-2717862-27121776(Top 77%)8425(Top 69%)8425(Top 465%)
20K12.43 mi3.11 mi21525-8308328-4668328-46623184(Top 82%)9237(Top 76%)9237(Top 509%)
Half13.11 mi0.68 mi21708-1838444-1168444-11624061(Top 85%)9744(Top 80%)9744(Top 537%)
25K15.53 mi2.42 mi22389-6818805-3618805-36124272(Top 85%)9897(Top 81%)9897(Top 546%)
30K18.64 mi3.11 mi22888-4999121-3169121-31624464(Top 86%)10107(Top 83%)10107(Top 557%)
20M20.00 mi1.36 mi23599-7119539-4189539-41827530(Top 97%)11836(Top 97%)11836(Top 653%)
21M21.00 mi1.00 mi23888-2899706-1679706-16726399(Top 93%)11261(Top 92%)11261(Top 621%)
35K21.75 mi0.75 mi23981-939772-669772-6625560(Top 90%)10878(Top 89%)10878(Top 600%)
23M23.00 mi1.25 mi24360-3799979-2079979-20727506(Top 97%)11858(Top 97%)11858(Top 654%)
24M24.00 mi1.00 mi24334+269979997923963(Top 84%)10097(Top 83%)10097(Top 557%)
40K24.85 mi0.85 mi24435-10110038-5910038-5925794(Top 91%)11037(Top 90%)11037(Top 609%)
25.2M25.20 mi0.35 mi24459-2410062-2410062-2425257(Top 89%)10822(Top 89%)10822(Top 597%)
Finish26.22 mi1.02 mi24462-310082-2010082-2024591(Top 87%)10453(Top 85%)10453(Top 577%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21story building
+97ft-345ft

Overall

21776

Females

8425

F45-49

8425

5K→10K

3.1 - 6.2 mi

Top 72%
×5story building
+79ft-138ft

Overall

20464

Females

7725

F45-49

7725

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+67ft-78ft

Overall

21776

Females

8425

F45-49

8425

15K→20K

9.3 - 12.4 mi

Top 82%
×5story building
+106ft-86ft

Overall

23184

Females

9237

F45-49

9237

20K→Half

12.4 - 13.1 mi

Top 85%
×2story building
+19ft-37ft

Overall

24061

Females

9744

F45-49

9744

Half→25K

13.1 - 15.5 mi

Top 85%
×4story building
+66ft-88ft

Overall

24272

Females

9897

F45-49

9897

25K→30K

15.5 - 18.6 mi

Top 86%
×9story building
+181ft-148ft

Overall

24464

Females

10107

F45-49

10107

30K→20M

18.6 - 20.0 mi

Top 97%
×5story building
+64ft-50ft

Overall

27530

Females

11836

F45-49

11836

20M→21M

20.0 - 21.0 mi

Top 93%
×8story building
+106ft-24ft

Overall

26399

Females

11261

F45-49

11261

21M→35K

21.0 - 21.8 mi

Top 90%
×7story building
+17ft-86ft

Overall

25560

Females

10878

F45-49

10878

35K→23M

21.8 - 23.0 mi

Top 97%
×5story building
+23ft-63ft

Overall

27506

Females

11858

F45-49

11858

23M→24M

23.0 - 24.0 mi

Top 84%
×6story building
+12ft-82ft

Overall

23963

Females

10097

F45-49

10097

24M→40K

24.0 - 24.9 mi

Top 91%
×1story
+6ft-20ft

Overall

25794

Females

11037

F45-49

11037

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1story
+13ft-16ft

Overall

25257

Females

10822

F45-49

10822

25.2M→Finish

25.2 - 26.2 mi

Top 87%
×2story building
+22ft-21ft

Overall

24591

Females

10453

F45-49

10453

Passing Analysis

Category:
Athletes Passed
528
Passed By
5112
Net Change
-4584
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19878
5K → 10K149465-316#19878#20194
10K → 15K73574-501#20194#20695
15K → 20K53883-830#20695#21525
20K → Half7190-183#21525#21708
Half → 25K25706-681#21708#22389
25K → 30K60559-499#22389#22888
30K → 20M10721-711#22888#23599
20M → 21M12301-289#23599#23888
21M → 35K12105-93#23888#23981
35K → 23M13392-379#23981#24360
23M → 24M6236+26#24360#24334
24M → 40K9110-101#24334#24435
40K → 25.2M1034-24#24435#24459
25.2M → Finish3336-3#24459#24462
TOTALS5285112-4584
📊

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