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BOSTON MARATHON 2025

Matt Dunn

Bib: 31045•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M45-49)
#0 / 2386
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
9:07/mi
28:19
↑ 97↓ 3451.5%
10K· 6.21 mi
8:57/mi
56:07
↑ 79↓ 1380.4%
15K· 9.32 mi
8:49/mi
1:23:32
↑ 67↓ 78
20K· 12.43 mi
9:55/mi
1:54:21
↑ 106↓ 860.1%
Half· 13.11 mi
10:07/mi
2:01:15
↑ 19↓ 370.5%
25K· 15.53 mi
11:58/mi
2:30:17
↑ 66↓ 880.2%
30K· 18.64 mi
13:03/mi
3:10:49
↑ 181↓ 1480.2%
20M
13:28/mi
3:29:07
↑ 64↓ 500.2%
21M
14:09/mi
3:43:16
↑ 106↓ 241.6%
35K· 21.75 mi
11:50/mi
3:52:07
↑ 17↓ 861.7%
23M
12:45/mi
4:08:05
↑ 23↓ 630.6%
24M
11:57/mi
4:20:02
↓ 821.3%
40K· 24.85 mi
12:46/mi
4:30:57
↓ 200.3%
25.2M
12:34/mi
4:35:17
↑ 13↓ 160.2%
Finish· 26.22 mi
9:48/mi
4:45:16
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:01:15
Pace9:15 /mi
2nd Half
Distance13.11 mi
Time2:44:01
Pace12:31 /mi
📊Positive Split: 35.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:3428:199:0728:19
9:07
-
10K
6.21 mi12:18:2256:079:0227:48
8:57
-0:10
15K
9.32 mi12:45:471:23:328:5827:25
8:49
-0:08
20K
12.43 mi13:16:361:54:219:1230:49
9:55
+1:06
Half
13.11 mi13:23:302:01:159:156:54
10:07
+0:12
25K
15.53 mi13:52:322:30:179:4029:02
11:58
+1:51
30K
18.64 mi14:33:043:10:4910:1440:32
13:03
+1:05
20M
20.00 mi14:51:223:29:0710:2718:18
13:28
+0:25
21M
21.00 mi15:05:313:43:1610:3814:09
14:09
+0:41
35K
21.75 mi15:14:223:52:0710:408:51
11:50
-2:19
23M
23.00 mi15:30:204:08:0510:4715:58
12:45
+0:55
24M
24.00 mi15:42:174:20:0210:5011:57
11:57
-0:48
40K
24.85 mi15:53:124:30:5710:5410:55
12:46
+0:49
25.2M
25.20 mi15:57:324:35:1710:554:20
12:34
-0:12
Finish
26.22 mi16:07:314:45:1610:539:59
9:48
-2:46

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

8:49 /mi

Average Pace

10:53 /mi

Slowest Pace

14:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:11:14

46% of race

Time at Steady Pace

1:21:03

28% of race

Time at Slower Pace

1:12:59

26% of race

Average Pace: 10:53 /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 mi11:50:3428:199:0728:19
9:07
#22896
10K
6.21 mi12:18:2256:079:0227:48
8:57
#22545
15K
9.32 mi12:45:471:23:328:5827:25
8:49
#22133
20K
12.43 mi13:16:361:54:219:1230:49
9:55
#22794
Half
13.11 mi13:23:302:01:159:156:54
10:07
#22959
25K
15.53 mi13:52:322:30:179:4029:02
11:58
#23915
30K
18.64 mi14:33:043:10:4910:1440:32
13:03
#24719
20M
20.00 mi14:51:223:29:0710:2718:18
13:28
#24991
21M
21.00 mi15:05:313:43:1610:3814:09
14:09
#25108
35K
21.75 mi15:14:223:52:0710:408:51
11:50
#25139
23M
23.00 mi15:30:204:08:0510:4715:58
12:45
#25202
24M
24.00 mi15:42:174:20:0210:5011:57
11:57
#25225
40K
24.85 mi15:53:124:30:5710:5410:55
12:46
#25268
25.2M
25.20 mi15:57:324:35:1710:554:20
12:34
#25257
Finish
26.22 mi16:07:314:45:1610:539:59
9:48
#25203
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi22896137161371621145(Top 74%)13009(Top 81%)13009(Top 545%)
10K6.21 mi3.10 mi22545+35113571+14513571+14522142(Top 78%)13404(Top 83%)13404(Top 562%)
15K9.32 mi3.11 mi22133+41213404+16713404+16721145(Top 74%)13009(Top 81%)13009(Top 545%)
20K12.43 mi3.11 mi22794-66113729-32513729-32524061(Top 85%)14258(Top 89%)14258(Top 598%)
Half13.11 mi0.68 mi22959-16513795-6613795-6625060(Top 88%)14700(Top 91%)14700(Top 616%)
25K15.53 mi2.42 mi23915-95614202-40714202-40726408(Top 93%)15256(Top 95%)15256(Top 639%)
30K18.64 mi3.11 mi24719-80414529-32714529-32726725(Top 94%)15309(Top 95%)15309(Top 642%)
20M20.00 mi1.36 mi24991-27214637-10814637-10826864(Top 95%)15309(Top 95%)15309(Top 642%)
21M21.00 mi1.00 mi25108-11714678-4114678-4126380(Top 93%)15061(Top 94%)15061(Top 631%)
35K21.75 mi0.75 mi25139-3114679-114679-125613(Top 90%)14640(Top 91%)14640(Top 614%)
23M23.00 mi1.25 mi25202-6314696-1714696-1726100(Top 92%)14888(Top 92%)14888(Top 624%)
24M24.00 mi1.00 mi25225-2314699-314699-325613(Top 90%)14605(Top 91%)14605(Top 612%)
40K24.85 mi0.85 mi25268-4314707-814707-826019(Top 92%)14799(Top 92%)14799(Top 620%)
25.2M25.20 mi0.35 mi25257+1114701+614701+624318(Top 86%)13932(Top 87%)13932(Top 584%)
Finish26.22 mi1.02 mi25203+5414668+3314668+3322270(Top 78%)12910(Top 80%)12910(Top 541%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21story building
+97ft-345ft

Overall

21145

Males

13009

M45-49

13009

5K→10K

3.1 - 6.2 mi

Top 78%
×5story building
+79ft-138ft

Overall

22142

Males

13404

M45-49

13404

10K→15K

6.2 - 9.3 mi

Top 74%
×3story building
+67ft-78ft

Overall

21145

Males

13009

M45-49

13009

15K→20K

9.3 - 12.4 mi

Top 85%
×5story building
+106ft-86ft

Overall

24061

Males

14258

M45-49

14258

20K→Half

12.4 - 13.1 mi

Top 88%
×2story building
+19ft-37ft

Overall

25060

Males

14700

M45-49

14700

Half→25K

13.1 - 15.5 mi

Top 93%
×4story building
+66ft-88ft

Overall

26408

Males

15256

M45-49

15256

25K→30K

15.5 - 18.6 mi

Top 94%
×9story building
+181ft-148ft

Overall

26725

Males

15309

M45-49

15309

30K→20M

18.6 - 20.0 mi

Top 95%
×5story building
+64ft-50ft

Overall

26864

Males

15309

M45-49

15309

20M→21M

20.0 - 21.0 mi

Top 93%
×8story building
+106ft-24ft

Overall

26380

Males

15061

M45-49

15061

21M→35K

21.0 - 21.8 mi

Top 90%
×7story building
+17ft-86ft

Overall

25613

Males

14640

M45-49

14640

35K→23M

21.8 - 23.0 mi

Top 92%
×5story building
+23ft-63ft

Overall

26100

Males

14888

M45-49

14888

23M→24M

23.0 - 24.0 mi

Top 90%
×6story building
+12ft-82ft

Overall

25613

Males

14605

M45-49

14605

24M→40K

24.0 - 24.9 mi

Top 92%
×1story
+6ft-20ft

Overall

26019

Males

14799

M45-49

14799

40K→25.2M

24.9 - 25.2 mi

Top 86%
×1story
+13ft-16ft

Overall

24318

Males

13932

M45-49

13932

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2story building
+22ft-21ft

Overall

22270

Males

12910

M45-49

12910

Passing Analysis

Category:
Athletes Passed
1174
Passed By
3481
Net Change
-2307
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22896
5K → 10K455104+351#22896#22545
10K → 15K44937+412#22545#22133
15K → 20K51712-661#22133#22794
20K → Half7172-165#22794#22959
Half → 25K9965-956#22959#23915
25K → 30K18822-804#23915#24719
30K → 20M10282-272#24719#24991
20M → 21M17134-117#24991#25108
21M → 35K1849-31#25108#25139
35K → 23M2588-63#25139#25202
23M → 24M2750-23#25202#25225
24M → 40K1558-43#25225#25268
40K → 25.2M165+11#25268#25257
25.2M → Finish573+54#25257#25203
TOTALS11743481-2307
📊

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