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BOSTON MARATHON 2025

David Marshall

Bib: 834•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 1%
Gender (Male)
#0 / 16105
Top 2%
Masters (Masters Men)
#0 / 10463
Top 0.4%
Division (M40-44)
#0 / 2247
Top 1%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
17:51
Rank: #501
Start → 5K
17:51 | 5:45/mi
10K· 6.21 mi
35:50
Rank: #544 (-43)
5K → 10K
17:59 | 5:47/mi
15K· 9.32 mi
53:54
Rank: #545 (-1)
10K → 15K
18:04 | 5:49/mi
20K· 12.43 mi
1:12:17
Rank: #551 (-6)
15K → 20K
18:23 | 5:55/mi
Half· 13.11 mi
1:16:14
Rank: #547 (+4)
20K → Half
3:57 | 5:47/mi
25K· 15.53 mi
1:30:32
Rank: #546 (+1)
Half → 25K
14:18 | 5:54/mi
30K· 18.64 mi
1:49:07
Rank: #508 (+38)
25K → 30K
18:35 | 5:59/mi
20M
1:57:13
Rank: #488 (+20)
30K → 20M
8:06 | 5:58/mi
21M
2:03:29
Rank: #471 (+17)
20M → 21M
6:16 | 6:16/mi
35K· 21.75 mi
2:07:43
Rank: #444 (+27)
21M → 35K
4:14 | 5:40/mi
23M
2:15:08
Rank: #428 (+16)
35K → 23M
7:25 | 5:55/mi
24M
2:20:51
Rank: #405 (+23)
23M → 24M
5:43 | 5:43/mi
40K· 24.85 mi
2:25:53
Rank: #392 (+13)
24M → 40K
5:02 | 5:53/mi
25.2M
2:28:03
Rank: #384 (+8)
40K → 25.2M
2:10 | 6:17/mi
Finish· 26.22 mi
2:33:46
Rank: #358 (+26)
25.2M → Finish
5:43 | 5:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:16:14
Pace5:49 /mi
2nd Half
Distance13.11 mi
Time1:17:32
Pace5:55 /mi
📊Positive Split: 1.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:0017:515:4517:51
5:45
-
10K
6.21 mi10:35:5935:505:4617:59
5:47
+0:02
15K
9.32 mi10:54:0353:545:4718:04
5:49
+0:02
20K
12.43 mi11:12:261:12:175:4918:23
5:55
+0:06
Half
13.11 mi11:16:231:16:145:493:57
5:47
-0:08
25K
15.53 mi11:30:411:30:325:5014:18
5:54
+0:07
30K
18.64 mi11:49:161:49:075:5118:35
5:59
+0:05
20M
20.00 mi11:57:221:57:135:528:06
5:58
-0:01
21M
21.00 mi12:03:382:03:295:536:16
6:16
+0:18
35K
21.75 mi12:07:522:07:435:524:14
5:40
-0:36
23M
23.00 mi12:15:172:15:085:537:25
5:55
+0:15
24M
24.00 mi12:21:002:20:515:525:43
5:43
-0:12
40K
24.85 mi12:26:022:25:535:525:02
5:53
+0:10
25.2M
25.20 mi12:28:122:28:035:532:10
6:17
+0:24
Finish
26.22 mi12:33:552:33:465:525:43
5:37
-0:40

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

5:37 /mi

Average Pace

5:52 /mi

Slowest Pace

6:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:25:20

95% of race

Time at Steady Pace

8:26

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 5:52 /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 mi10:18:0017:515:4517:51
5:45
#501
10K
6.21 mi10:35:5935:505:4617:59
5:47
#544
15K
9.32 mi10:54:0353:545:4718:04
5:49
#545
20K
12.43 mi11:12:261:12:175:4918:23
5:55
#551
Half
13.11 mi11:16:231:16:145:493:57
5:47
#547
25K
15.53 mi11:30:411:30:325:5014:18
5:54
#546
30K
18.64 mi11:49:161:49:075:5118:35
5:59
#508
20M
20.00 mi11:57:221:57:135:528:06
5:58
#488
21M
21.00 mi12:03:382:03:295:536:16
6:16
#471
35K
21.75 mi12:07:522:07:435:524:14
5:40
#444
23M
23.00 mi12:15:172:15:085:537:25
5:55
#428
24M
24.00 mi12:21:002:20:515:525:43
5:43
#405
40K
24.85 mi12:26:022:25:535:525:02
5:53
#392
25.2M
25.20 mi12:28:122:28:035:532:10
6:17
#384
Finish
26.22 mi12:33:552:33:465:525:43
5:37
#358
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi501463463547(Top 2%)510(Top 3%)510(Top 23%)
10K6.21 mi3.10 mi544-43506-43506-43576(Top 2%)537(Top 3%)537(Top 24%)
15K9.32 mi3.11 mi545-1506506547(Top 2%)510(Top 3%)510(Top 23%)
20K12.43 mi3.11 mi551-6508-2508-2659(Top 2%)612(Top 4%)612(Top 27%)
Half13.11 mi0.68 mi547+4505+3505+3545(Top 2%)511(Top 3%)511(Top 23%)
25K15.53 mi2.42 mi546+1504+1504+1561(Top 2%)518(Top 3%)518(Top 23%)
30K18.64 mi3.11 mi508+38467+37467+37464(Top 2%)430(Top 3%)430(Top 19%)
20M20.00 mi1.36 mi488+20449+18449+18335(Top 1%)311(Top 2%)311(Top 14%)
21M21.00 mi1.00 mi471+17434+15434+15329(Top 1%)309(Top 2%)309(Top 14%)
35K21.75 mi0.75 mi444+27409+25409+25231(Top 0.8%)211(Top 1%)211(Top 9%)
23M23.00 mi1.25 mi428+16394+15394+15263(Top 0.9%)244(Top 2%)244(Top 11%)
24M24.00 mi1.00 mi405+23374+20374+20202(Top 0.7%)184(Top 1%)184(Top 8%)
40K24.85 mi0.85 mi392+13362+12362+12263(Top 0.9%)242(Top 2%)242(Top 11%)
25.2M25.20 mi0.35 mi384+8355+7355+7217(Top 0.8%)201(Top 1%)201(Top 9%)
Finish26.22 mi1.02 mi358+26329+26329+26245(Top 0.9%)232(Top 1%)232(Top 10%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21stories
+97ft-345ft

Overall

547

Males

510

M40-44

510

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

576

Males

537

M40-44

537

10K→15K

6.2 - 9.3 mi

Top 2%
×3stories
+67ft-78ft

Overall

547

Males

510

M40-44

510

15K→20K

9.3 - 12.4 mi

Top 2%
×5stories
+106ft-86ft

Overall

659

Males

612

M40-44

612

20K→Half

12.4 - 13.1 mi

Top 2%
×2stories
+19ft-37ft

Overall

545

Males

511

M40-44

511

Half→25K

13.1 - 15.5 mi

Top 2%
×4stories
+66ft-88ft

Overall

561

Males

518

M40-44

518

25K→30K

15.5 - 18.6 mi

Top 2%
×9stories
+181ft-148ft

Overall

464

Males

430

M40-44

430

30K→20M

18.6 - 20.0 mi

Top 1%
×5stories
+64ft-50ft

Overall

335

Males

311

M40-44

311

20M→21M

20.0 - 21.0 mi

Top 1%
×8stories
+106ft-24ft

Overall

329

Males

309

M40-44

309

21M→35K

21.0 - 21.8 mi

Top 0.8%
×7stories
+17ft-86ft

Overall

231

Males

211

M40-44

211

35K→23M

21.8 - 23.0 mi

Top 0.9%
×5stories
+23ft-63ft

Overall

263

Males

244

M40-44

244

23M→24M

23.0 - 24.0 mi

Top 0.7%
×6stories
+12ft-82ft

Overall

202

Males

184

M40-44

184

24M→40K

24.0 - 24.9 mi

Top 0.9%
×1story
+6ft-20ft

Overall

263

Males

242

M40-44

242

40K→25.2M

24.9 - 25.2 mi

Top 0.8%
×1story
+13ft-16ft

Overall

217

Males

201

M40-44

201

25.2M→Finish

25.2 - 26.2 mi

Top 0.9%
×2stories
+22ft-21ft

Overall

245

Males

232

M40-44

232

Passing Analysis

Category:
Athletes Passed
278
Passed By
135
Net Change
+143
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#501
5K → 10K1154-43#501#544
10K → 15K1516-1#544#545
15K → 20K1925-6#545#551
20K → Half51+4#551#547
Half → 25K2120+1#547#546
25K → 30K468+38#546#508
30K → 20M222+20#508#488
20M → 21M203+17#488#471
21M → 35K270+27#471#444
35K → 23M193+16#444#428
23M → 24M230+23#428#405
24M → 40K141+13#405#392
40K → 25.2M91+8#392#384
25.2M → Finish271+26#384#358
TOTALS278135+143
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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