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BOSTON MARATHON 2025

Marsha Kavanagh

Bib: 22377•F

NH

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 43%
Division (F50-54)
#0 / 1303
Top 39%
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
8:20/mi
25:53
↑ 97↓ 3451.5%
10K· 6.21 mi
8:28/mi
52:12
↑ 79↓ 1380.4%
15K· 9.32 mi
8:34/mi
1:18:50
↑ 67↓ 78
20K· 12.43 mi
8:35/mi
1:45:30
↑ 106↓ 860.1%
Half· 13.11 mi
8:21/mi
1:51:12
↑ 19↓ 370.5%
25K· 15.53 mi
8:38/mi
2:12:09
↑ 66↓ 880.2%
30K· 18.64 mi
8:53/mi
2:39:46
↑ 181↓ 1480.2%
20M
8:57/mi
2:51:56
↑ 64↓ 500.2%
21M
9:40/mi
3:01:36
↑ 106↓ 241.6%
35K· 21.75 mi
8:55/mi
3:08:16
↑ 17↓ 861.7%
23M
9:09/mi
3:19:43
↑ 23↓ 630.6%
24M
8:52/mi
3:28:35
↓ 821.3%
40K· 24.85 mi
8:54/mi
3:36:12
↓ 200.3%
25.2M
9:43/mi
3:39:33
↑ 13↓ 160.2%
Finish· 26.22 mi
8:23/mi
3:48:06
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:12
Pace8:29 /mi
2nd Half
Distance13.11 mi
Time1:56:54
Pace8:55 /mi
📊Positive Split: 5.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:4525:538:2025:53
8:20
-
10K
6.21 mi11:47:0452:128:2426:19
8:28
+0:08
15K
9.32 mi12:13:421:18:508:2726:38
8:34
+0:06
20K
12.43 mi12:40:221:45:308:2926:40
8:35
+0:01
Half
13.11 mi12:46:041:51:128:295:42
8:21
-0:14
25K
15.53 mi13:07:012:12:098:3020:57
8:38
+0:17
30K
18.64 mi13:34:382:39:468:3427:37
8:53
+0:15
20M
20.00 mi13:46:482:51:568:3612:10
8:57
+0:04
21M
21.00 mi13:56:283:01:368:399:40
9:40
+0:43
35K
21.75 mi14:03:083:08:168:396:40
8:55
-0:45
23M
23.00 mi14:14:353:19:438:4111:27
9:09
+0:14
24M
24.00 mi14:23:273:28:358:418:52
8:52
-0:17
40K
24.85 mi14:31:043:36:128:427:37
8:54
+0:02
25.2M
25.20 mi14:34:253:39:338:433:21
9:43
+0:49
Finish
26.22 mi14:42:583:48:068:428:33
8:23
-1:20

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

8:20 /mi

Average Pace

8:42 /mi

Slowest Pace

9:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:35:05

94% of race

Time at Steady Pace

13:01

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:42 /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 mi11:20:4525:538:2025:53
8:20
#18922
10K
6.21 mi11:47:0452:128:2426:19
8:28
#19241
15K
9.32 mi12:13:421:18:508:2726:38
8:34
#19408
20K
12.43 mi12:40:221:45:308:2926:40
8:35
#19200
Half
13.11 mi12:46:041:51:128:295:42
8:21
#19144
25K
15.53 mi13:07:012:12:098:3020:57
8:38
#18940
30K
18.64 mi13:34:382:39:468:3427:37
8:53
#18579
20M
20.00 mi13:46:482:51:568:3612:10
8:57
#18412
21M
21.00 mi13:56:283:01:368:399:40
9:40
#18290
35K
21.75 mi14:03:083:08:168:396:40
8:55
#18261
23M
23.00 mi14:14:353:19:438:4111:27
9:09
#18191
24M
24.00 mi14:23:273:28:358:418:52
8:52
#18099
40K
24.85 mi14:31:043:36:128:427:37
8:54
#18005
25.2M
25.20 mi14:34:253:39:338:433:21
9:43
#17967
Finish
26.22 mi14:42:583:48:068:428:33
8:23
#17869
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi189226865686519768(Top 70%)7310(Top 60%)7310(Top 561%)
10K6.21 mi3.10 mi19241-3197032-1677032-16719634(Top 69%)7259(Top 59%)7259(Top 557%)
15K9.32 mi3.11 mi19408-1677127-957127-9519768(Top 70%)7310(Top 60%)7310(Top 561%)
20K12.43 mi3.11 mi19200+2087020+1077020+10718757(Top 66%)6777(Top 55%)6777(Top 520%)
Half13.11 mi0.68 mi19144+566987+336987+3318356(Top 65%)6533(Top 53%)6533(Top 501%)
25K15.53 mi2.42 mi18940+2046882+1056882+10518057(Top 64%)6459(Top 53%)6459(Top 496%)
30K18.64 mi3.11 mi18579+3616704+1786704+17817099(Top 60%)6080(Top 50%)6080(Top 467%)
20M20.00 mi1.36 mi18412+1676647+576647+5716572(Top 58%)5910(Top 48%)5910(Top 454%)
21M21.00 mi1.00 mi18290+1226603+446603+4416895(Top 59%)6205(Top 51%)6205(Top 476%)
35K21.75 mi0.75 mi18261+296603660317829(Top 63%)6805(Top 56%)6805(Top 522%)
23M23.00 mi1.25 mi18191+706596+76596+717097(Top 60%)6507(Top 53%)6507(Top 499%)
24M24.00 mi1.00 mi18099+926571+256571+2516692(Top 59%)6317(Top 52%)6317(Top 485%)
40K24.85 mi0.85 mi18005+946552+196552+1915831(Top 56%)5960(Top 49%)5960(Top 457%)
25.2M25.20 mi0.35 mi17967+386534+186534+1815769(Top 56%)5980(Top 49%)5980(Top 459%)
Finish26.22 mi1.02 mi17869+986500+346500+3415551(Top 55%)5791(Top 47%)5791(Top 444%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21story building
+97ft-345ft

Overall

19768

Females

7310

F50-54

7310

5K→10K

3.1 - 6.2 mi

Top 69%
×5story building
+79ft-138ft

Overall

19634

Females

7259

F50-54

7259

10K→15K

6.2 - 9.3 mi

Top 70%
×3story building
+67ft-78ft

Overall

19768

Females

7310

F50-54

7310

15K→20K

9.3 - 12.4 mi

Top 66%
×5story building
+106ft-86ft

Overall

18757

Females

6777

F50-54

6777

20K→Half

12.4 - 13.1 mi

Top 65%
×2story building
+19ft-37ft

Overall

18356

Females

6533

F50-54

6533

Half→25K

13.1 - 15.5 mi

Top 64%
×4story building
+66ft-88ft

Overall

18057

Females

6459

F50-54

6459

25K→30K

15.5 - 18.6 mi

Top 60%
×9story building
+181ft-148ft

Overall

17099

Females

6080

F50-54

6080

30K→20M

18.6 - 20.0 mi

Top 58%
×5story building
+64ft-50ft

Overall

16572

Females

5910

F50-54

5910

20M→21M

20.0 - 21.0 mi

Top 59%
×8story building
+106ft-24ft

Overall

16895

Females

6205

F50-54

6205

21M→35K

21.0 - 21.8 mi

Top 63%
×7story building
+17ft-86ft

Overall

17829

Females

6805

F50-54

6805

35K→23M

21.8 - 23.0 mi

Top 60%
×5story building
+23ft-63ft

Overall

17097

Females

6507

F50-54

6507

23M→24M

23.0 - 24.0 mi

Top 59%
×6story building
+12ft-82ft

Overall

16692

Females

6317

F50-54

6317

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

15831

Females

5960

F50-54

5960

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

15769

Females

5980

F50-54

5980

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2story building
+22ft-21ft

Overall

15551

Females

5791

F50-54

5791

Passing Analysis

Category:
Athletes Passed
2324
Passed By
1271
Net Change
+1053
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18922
5K → 10K139458-319#18922#19241
10K → 15K131298-167#19241#19408
15K → 20K29587+208#19408#19200
20K → Half7014+56#19200#19144
Half → 25K26561+204#19144#18940
25K → 30K43776+361#18940#18579
30K → 20M19629+167#18579#18412
20M → 21M16543+122#18412#18290
21M → 35K7142+29#18290#18261
35K → 23M13969+70#18261#18191
23M → 24M12129+92#18191#18099
24M → 40K11723+94#18099#18005
40K → 25.2M479+38#18005#17967
25.2M → Finish13133+98#17967#17869
TOTALS23241271+1053
📊

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