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BOSTON MARATHON 2025

Mark Colhoun

Bib: 26835•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

Start
0:00:00
Race begins
5K· 3.11 mi
24:17
Rank: #14948
Start → 5K
7:49/mi
24:17 split
10K· 6.21 mi
48:12
Rank: #14374 (+574)
5K → 10K
7:42/mi
23:55 split
15K· 9.32 mi
1:12:06
Rank: #14070 (+304)
10K → 15K
7:42/mi
23:55 split
20K· 12.43 mi
1:37:08
Rank: #14389 (-319)
15K → 20K
8:03/mi
25:02 split
Half· 13.11 mi
1:42:44
Rank: #14548 (-159)
20K → Half
8:12/mi
5:36 split
25K· 15.53 mi
2:03:17
Rank: #15052 (-504)
Half → 25K
8:29/mi
20:33 split
30K· 18.64 mi
2:32:51
Rank: #16206 (-1154)
25K → 30K
9:31/mi
29:34 split
20M
2:46:53
Rank: #16789 (-583)
30K → 20M
10:20/mi
14:02 split
21M
2:58:26
Rank: #17342 (-553)
20M → 21M
11:33/mi
11:33 split
35K· 21.75 mi
3:06:21
Rank: #17725 (-383)
21M → 35K
10:35/mi
7:55 split
23M
3:20:08
Rank: #18295 (-570)
35K → 23M
11:01/mi
13:47 split
24M
3:31:02
Rank: #18729 (-434)
23M → 24M
10:54/mi
10:54 split
40K· 24.85 mi
3:40:25
Rank: #18978 (-249)
24M → 40K
10:58/mi
9:23 split
25.2M
3:44:26
Rank: #19066 (-88)
40K → 25.2M
11:39/mi
4:01 split
Finish· 26.22 mi
3:55:05
Rank: #19354 (-288)
25.2M → Finish
10:27/mi
10:39 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:44
Pace7:50 /mi
2nd Half
Distance13.11 mi
Time2:12:21
Pace10:06 /mi
📊Positive Split: 28.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:40:0524:177:4924:17
7:49
-
10K
6.21 mi12:04:0048:127:4523:55
7:42
-0:07
15K
9.32 mi12:27:541:12:067:4423:55
7:42
0:00
20K
12.43 mi12:52:561:37:087:4925:02
8:03
+0:21
Half
13.11 mi12:58:321:42:447:505:36
8:12
+0:09
25K
15.53 mi13:19:052:03:177:5620:33
8:29
+0:17
30K
18.64 mi13:48:392:32:518:1229:34
9:31
+1:02
20M
20.00 mi14:02:412:46:538:2114:02
10:20
+0:49
21M
21.00 mi14:14:142:58:268:3011:33
11:33
+1:13
35K
21.75 mi14:22:093:06:218:347:55
10:35
-0:58
23M
23.00 mi14:35:563:20:088:4213:47
11:01
+0:26
24M
24.00 mi14:46:503:31:028:4810:54
10:54
-0:07
40K
24.85 mi14:56:133:40:258:529:23
10:58
+0:04
25.2M
25.20 mi15:00:143:44:268:544:01
11:39
+0:41
Finish
26.22 mi15:10:533:55:058:5810:39
10:27
-1:12

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

7:42 /mi

Average Pace

8:58 /mi

Slowest Pace

11:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:32:51

65% of race

Time at Steady Pace

1:06:40

28% of race

Time at Slower Pace

15:34

7% of race

Average Pace: 8:58 /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 mi11:40:0524:177:4924:17
7:49
#14948
10K
6.21 mi12:04:0048:127:4523:55
7:42
#14374
15K
9.32 mi12:27:541:12:067:4423:55
7:42
#14070
20K
12.43 mi12:52:561:37:087:4925:02
8:03
#14389
Half
13.11 mi12:58:321:42:447:505:36
8:12
#14548
25K
15.53 mi13:19:052:03:177:5620:33
8:29
#15052
30K
18.64 mi13:48:392:32:518:1229:34
9:31
#16206
20M
20.00 mi14:02:412:46:538:2114:02
10:20
#16789
21M
21.00 mi14:14:142:58:268:3011:33
11:33
#17342
35K
21.75 mi14:22:093:06:218:347:55
10:35
#17725
23M
23.00 mi14:35:563:20:088:4213:47
11:01
#18295
24M
24.00 mi14:46:503:31:028:4810:54
10:54
#18729
40K
24.85 mi14:56:133:40:258:529:23
10:58
#18978
25.2M
25.20 mi15:00:143:44:268:544:01
11:39
#19066
Finish
26.22 mi15:10:533:55:058:5810:39
10:27
#19354
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi14948104121041213457(Top 47%)9699(Top 60%)9699(Top 406%)
10K6.21 mi3.10 mi14374+57410171+24110171+24113855(Top 49%)9937(Top 62%)9937(Top 416%)
15K9.32 mi3.11 mi14070+30410012+15910012+15913457(Top 47%)9699(Top 60%)9699(Top 406%)
20K12.43 mi3.11 mi14389-31910119-10710119-10715331(Top 54%)10471(Top 65%)10471(Top 439%)
Half13.11 mi0.68 mi14548-15910190-7110190-7117314(Top 61%)11341(Top 70%)11341(Top 475%)
25K15.53 mi2.42 mi15052-50410367-17710367-17717028(Top 60%)11119(Top 69%)11119(Top 466%)
30K18.64 mi3.11 mi16206-115410816-44910816-44919999(Top 70%)12285(Top 76%)12285(Top 515%)
20M20.00 mi1.36 mi16789-58311030-21411030-21421931(Top 77%)13020(Top 81%)13020(Top 546%)
21M21.00 mi1.00 mi17342-55311211-18111211-18122695(Top 80%)13290(Top 83%)13290(Top 557%)
35K21.75 mi0.75 mi17725-38311378-16711378-16723321(Top 82%)13541(Top 84%)13541(Top 568%)
23M23.00 mi1.25 mi18295-57011597-21911597-21923235(Top 82%)13447(Top 83%)13447(Top 564%)
24M24.00 mi1.00 mi18729-43411756-15911756-15923757(Top 84%)13691(Top 85%)13691(Top 574%)
40K24.85 mi0.85 mi18978-24911838-8211838-8223067(Top 81%)13267(Top 82%)13267(Top 556%)
25.2M25.20 mi0.35 mi19066-8811867-2911867-2922406(Top 79%)12984(Top 81%)12984(Top 544%)
Finish26.22 mi1.02 mi19354-28811971-10411971-10424164(Top 85%)13848(Top 86%)13848(Top 580%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21story building
+97ft-345ft

Overall

13457

Males

9699

M45-49

9699

5K→10K

3.1 - 6.2 mi

Top 49%
×5story building
+79ft-138ft

Overall

13855

Males

9937

M45-49

9937

10K→15K

6.2 - 9.3 mi

Top 47%
×3story building
+67ft-78ft

Overall

13457

Males

9699

M45-49

9699

15K→20K

9.3 - 12.4 mi

Top 54%
×5story building
+106ft-86ft

Overall

15331

Males

10471

M45-49

10471

20K→Half

12.4 - 13.1 mi

Top 61%
×2story building
+19ft-37ft

Overall

17314

Males

11341

M45-49

11341

Half→25K

13.1 - 15.5 mi

Top 60%
×4story building
+66ft-88ft

Overall

17028

Males

11119

M45-49

11119

25K→30K

15.5 - 18.6 mi

Top 70%
×9story building
+181ft-148ft

Overall

19999

Males

12285

M45-49

12285

30K→20M

18.6 - 20.0 mi

Top 77%
×5story building
+64ft-50ft

Overall

21931

Males

13020

M45-49

13020

20M→21M

20.0 - 21.0 mi

Top 80%
×8story building
+106ft-24ft

Overall

22695

Males

13290

M45-49

13290

21M→35K

21.0 - 21.8 mi

Top 82%
×7story building
+17ft-86ft

Overall

23321

Males

13541

M45-49

13541

35K→23M

21.8 - 23.0 mi

Top 82%
×5story building
+23ft-63ft

Overall

23235

Males

13447

M45-49

13447

23M→24M

23.0 - 24.0 mi

Top 84%
×6story building
+12ft-82ft

Overall

23757

Males

13691

M45-49

13691

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

23067

Males

13267

M45-49

13267

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

22406

Males

12984

M45-49

12984

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2story building
+22ft-21ft

Overall

24164

Males

13848

M45-49

13848

Passing Analysis

Category:
Athletes Passed
1457
Passed By
5863
Net Change
-4406
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14948
5K → 10K66995+574#14948#14374
10K → 15K38177+304#14374#14070
15K → 20K120439-319#14070#14389
20K → Half12171-159#14389#14548
Half → 25K76580-504#14548#15052
25K → 30K441198-1154#15052#16206
30K → 20M22605-583#16206#16789
20M → 21M28581-553#16789#17342
21M → 35K19402-383#17342#17725
35K → 23M24594-570#17725#18295
23M → 24M14448-434#18295#18729
24M → 40K29278-249#18729#18978
40K → 25.2M1098-88#18978#19066
25.2M → Finish9297-288#19066#19354
TOTALS14575863-4406
📊

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