Boston Marathon logo
BOSTON MARATHON 2025

Brian Dumm

Bib: 3700•M

CO

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 7%
Gender (Male)
#0 / 16105
Top 12%
Masters (Masters Men)
#0 / 10463
Top 3%
Division (M40-44)
#0 / 2247
Top 10%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:21
Rank: #2014
Start → 5K
19:21 | 6:14/mi
10K· 6.21 mi
38:26
Rank: #1801 (+213)
5K → 10K
19:05 | 6:09/mi
15K· 9.32 mi
57:44
Rank: #1822 (-21)
10K → 15K
19:18 | 6:13/mi
20K· 12.43 mi
1:17:21
Rank: #1870 (-48)
15K → 20K
19:37 | 6:19/mi
Half· 13.11 mi
1:21:32
Rank: #1860 (+10)
20K → Half
4:11 | 6:08/mi
25K· 15.53 mi
1:37:00
Rank: #1906 (-46)
Half → 25K
15:28 | 6:23/mi
30K· 18.64 mi
1:57:26
Rank: #1943 (-37)
25K → 30K
20:26 | 6:35/mi
20M
2:06:31
Rank: #1958 (-15)
30K → 20M
9:05 | 6:41/mi
21M
2:13:38
Rank: #1973 (-15)
20M → 21M
7:07 | 7:07/mi
35K· 21.75 mi
2:18:31
Rank: #1975 (-2)
21M → 35K
4:53 | 6:32/mi
23M
2:26:54
Rank: #1958 (+17)
35K → 23M
8:23 | 6:42/mi
24M
2:33:38
Rank: #1974 (-16)
23M → 24M
6:44 | 6:44/mi
40K· 24.85 mi
2:39:43
Rank: #2026 (-52)
24M → 40K
6:05 | 7:07/mi
25.2M
2:42:19
Rank: #2038 (-12)
40K → 25.2M
2:36 | 7:32/mi
Finish· 26.22 mi
2:49:12
Rank: #2109 (-71)
25.2M → Finish
6:53 | 6:45/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:21:32
Pace6:13 /mi
2nd Half
Distance13.11 mi
Time1:27:40
Pace6:41 /mi
📊Positive Split: 7.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:4019:216:1419:21
6:14
-
10K
6.21 mi10:40:4538:266:1119:05
6:09
-0:05
15K
9.32 mi11:00:0357:446:1219:18
6:13
+0:04
20K
12.43 mi11:19:401:17:216:1319:37
6:19
+0:06
Half
13.11 mi11:23:511:21:326:134:11
6:08
-0:11
25K
15.53 mi11:39:191:37:006:1515:28
6:23
+0:15
30K
18.64 mi11:59:451:57:266:1820:26
6:35
+0:12
20M
20.00 mi12:08:502:06:316:209:05
6:41
+0:06
21M
21.00 mi12:15:572:13:386:227:07
7:07
+0:26
35K
21.75 mi12:20:502:18:316:224:53
6:32
-0:35
23M
23.00 mi12:29:132:26:546:238:23
6:42
+0:10
24M
24.00 mi12:35:572:33:386:246:44
6:44
+0:02
40K
24.85 mi12:42:022:39:436:266:05
7:07
+0:23
25.2M
25.20 mi12:44:382:42:196:262:36
7:32
+0:25
Finish
26.22 mi12:51:312:49:126:276:53
6:45
-0:47

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

6:08 /mi

Average Pace

6:27 /mi

Slowest Pace

7:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:37:00

57% of race

Time at Steady Pace

56:24

33% of race

Time at Slower Pace

15:48

9% of race

Average Pace: 6:27 /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 mi10:21:4019:216:1419:21
6:14
#2014
10K
6.21 mi10:40:4538:266:1119:05
6:09
#1801
15K
9.32 mi11:00:0357:446:1219:18
6:13
#1822
20K
12.43 mi11:19:401:17:216:1319:37
6:19
#1870
Half
13.11 mi11:23:511:21:326:134:11
6:08
#1860
25K
15.53 mi11:39:191:37:006:1515:28
6:23
#1906
30K
18.64 mi11:59:451:57:266:1820:26
6:35
#1943
20M
20.00 mi12:08:502:06:316:209:05
6:41
#1958
21M
21.00 mi12:15:572:13:386:227:07
7:07
#1973
35K
21.75 mi12:20:502:18:316:224:53
6:32
#1975
23M
23.00 mi12:29:132:26:546:238:23
6:42
#1958
24M
24.00 mi12:35:572:33:386:246:44
6:44
#1974
40K
24.85 mi12:42:022:39:436:266:05
7:07
#2026
25.2M
25.20 mi12:44:382:42:196:262:36
7:32
#2038
Finish
26.22 mi12:51:312:49:126:276:53
6:45
#2109
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi2014191719171910(Top 7%)1819(Top 11%)1819(Top 81%)
10K6.21 mi3.10 mi1801+2131712+2051712+2051645(Top 6%)1566(Top 10%)1566(Top 70%)
15K9.32 mi3.11 mi1822-211734-221734-221910(Top 7%)1819(Top 11%)1819(Top 81%)
20K12.43 mi3.11 mi1870-481781-471781-472068(Top 7%)1972(Top 12%)1972(Top 88%)
Half13.11 mi0.68 mi1860+101771+101771+101664(Top 6%)1583(Top 10%)1583(Top 70%)
25K15.53 mi2.42 mi1906-461816-451816-452242(Top 8%)2132(Top 13%)2132(Top 95%)
30K18.64 mi3.11 mi1943-371850-341850-342303(Top 8%)2181(Top 14%)2181(Top 97%)
20M20.00 mi1.36 mi1958-151863-131863-132369(Top 8%)2236(Top 14%)2236(Top 100%)
21M21.00 mi1.00 mi1973-151877-141877-142726(Top 10%)2529(Top 16%)2529(Top 113%)
35K21.75 mi0.75 mi1975-21878-11878-12562(Top 9%)2381(Top 15%)2381(Top 106%)
23M23.00 mi1.25 mi1958+171859+191859+192216(Top 8%)2067(Top 13%)2067(Top 92%)
24M24.00 mi1.00 mi1974-161873-141873-143113(Top 11%)2809(Top 17%)2809(Top 125%)
40K24.85 mi0.85 mi2026-521922-491922-494514(Top 16%)3846(Top 24%)3846(Top 171%)
25.2M25.20 mi0.35 mi2038-121933-111933-113503(Top 12%)3047(Top 19%)3047(Top 136%)
Finish26.22 mi1.02 mi2109-712001-682001-684185(Top 15%)3562(Top 22%)3562(Top 159%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21stories
+97ft-345ft

Overall

1910

Males

1819

M40-44

1819

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1645

Males

1566

M40-44

1566

10K→15K

6.2 - 9.3 mi

Top 7%
×3stories
+67ft-78ft

Overall

1910

Males

1819

M40-44

1819

15K→20K

9.3 - 12.4 mi

Top 7%
×5stories
+106ft-86ft

Overall

2068

Males

1972

M40-44

1972

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1664

Males

1583

M40-44

1583

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2242

Males

2132

M40-44

2132

25K→30K

15.5 - 18.6 mi

Top 8%
×9stories
+181ft-148ft

Overall

2303

Males

2181

M40-44

2181

30K→20M

18.6 - 20.0 mi

Top 8%
×5stories
+64ft-50ft

Overall

2369

Males

2236

M40-44

2236

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2726

Males

2529

M40-44

2529

21M→35K

21.0 - 21.8 mi

Top 9%
×7stories
+17ft-86ft

Overall

2562

Males

2381

M40-44

2381

35K→23M

21.8 - 23.0 mi

Top 8%
×5stories
+23ft-63ft

Overall

2216

Males

2067

M40-44

2067

23M→24M

23.0 - 24.0 mi

Top 11%
×6stories
+12ft-82ft

Overall

3113

Males

2809

M40-44

2809

24M→40K

24.0 - 24.9 mi

Top 16%
×1story
+6ft-20ft

Overall

4514

Males

3846

M40-44

3846

40K→25.2M

24.9 - 25.2 mi

Top 12%
×1story
+13ft-16ft

Overall

3503

Males

3047

M40-44

3047

25.2M→Finish

25.2 - 26.2 mi

Top 15%
×2stories
+22ft-21ft

Overall

4185

Males

3562

M40-44

3562

Passing Analysis

Category:
Athletes Passed
661
Passed By
756
Net Change
-95
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2014
5K → 10K24229+213#2014#1801
10K → 15K4465-21#1801#1822
15K → 20K4997-48#1822#1870
20K → Half177+10#1870#1860
Half → 25K3379-46#1860#1906
25K → 30K71108-37#1906#1943
30K → 20M2641-15#1943#1958
20M → 21M3550-15#1958#1973
21M → 35K2729-2#1973#1975
35K → 23M5841+17#1975#1958
23M → 24M2844-16#1958#1974
24M → 40K1567-52#1974#2026
40K → 25.2M719-12#2026#2038
25.2M → Finish980-71#2038#2109
TOTALS661756-95
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing