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BOSTON MARATHON 2025

David Mccollam

Bib: 4416•M

FL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 3%
Gender (Male)
#0 / 16105
Top 5%
Masters (Masters Men)
#0 / 10463
Top 0.9%
Division (M45-49)
#0 / 2386
Top 0.9%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:44
Rank: #1153
Start → 5K
18:44 | 6:02/mi
10K· 6.21 mi
37:15
Rank: #1046 (+107)
5K → 10K
18:31 | 5:58/mi
15K· 9.32 mi
55:35
Rank: #953 (+93)
10K → 15K
18:20 | 5:54/mi
20K· 12.43 mi
1:13:55
Rank: #853 (+100)
15K → 20K
18:20 | 5:54/mi
Half· 13.11 mi
1:17:56
Rank: #853
20K → Half
4:01 | 5:53/mi
25K· 15.53 mi
1:32:05
Rank: #767 (+86)
Half → 25K
14:09 | 5:50/mi
30K· 18.64 mi
1:50:55
Rank: #717 (+50)
25K → 30K
18:50 | 6:04/mi
20M
1:59:17
Rank: #692 (+25)
30K → 20M
8:22 | 6:09/mi
21M
2:05:52
Rank: #692
20M → 21M
6:35 | 6:35/mi
35K· 21.75 mi
2:10:24
Rank: #676 (+16)
21M → 35K
4:32 | 6:04/mi
23M
2:18:35
Rank: #699 (-23)
35K → 23M
8:11 | 6:32/mi
24M
2:24:58
Rank: #717 (-18)
23M → 24M
6:23 | 6:23/mi
40K· 24.85 mi
2:30:38
Rank: #728 (-11)
24M → 40K
5:40 | 6:38/mi
25.2M
2:33:10
Rank: #751 (-23)
40K → 25.2M
2:32 | 7:21/mi
Finish· 26.22 mi
2:39:42
Rank: #778 (-27)
25.2M → Finish
6:32 | 6:25/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:17:56
Pace5:57 /mi
2nd Half
Distance13.11 mi
Time1:21:46
Pace6:14 /mi
📊Positive Split: 4.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:1718:446:0218:44
6:02
-
10K
6.21 mi10:39:4837:156:0018:31
5:58
-0:04
15K
9.32 mi10:58:0855:355:5818:20
5:54
-0:04
20K
12.43 mi11:16:281:13:555:5718:20
5:54
0:00
Half
13.11 mi11:20:291:17:565:574:01
5:53
-0:01
25K
15.53 mi11:34:381:32:055:5614:09
5:50
-0:03
30K
18.64 mi11:53:281:50:555:5718:50
6:04
+0:14
20M
20.00 mi12:01:501:59:175:588:22
6:09
+0:05
21M
21.00 mi12:08:252:05:526:006:35
6:35
+0:26
35K
21.75 mi12:12:572:10:246:004:32
6:04
-0:31
23M
23.00 mi12:21:082:18:356:028:11
6:32
+0:28
24M
24.00 mi12:27:312:24:586:026:23
6:23
-0:09
40K
24.85 mi12:33:112:30:386:045:40
6:38
+0:15
25.2M
25.20 mi12:35:432:33:106:052:32
7:21
+0:43
Finish
26.22 mi12:42:152:39:426:066:32
6:25
-0:56

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

5:50 /mi

Average Pace

6:06 /mi

Slowest Pace

7:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

14:09

9% of race

Time at Steady Pace

1:49:40

69% of race

Time at Slower Pace

35:53

22% of race

Average Pace: 6:05 /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 mi10:21:1718:446:0218:44
6:02
#1153
10K
6.21 mi10:39:4837:156:0018:31
5:58
#1046
15K
9.32 mi10:58:0855:355:5818:20
5:54
#953
20K
12.43 mi11:16:281:13:555:5718:20
5:54
#853
Half
13.11 mi11:20:291:17:565:574:01
5:53
#853
25K
15.53 mi11:34:381:32:055:5614:09
5:50
#767
30K
18.64 mi11:53:281:50:555:5718:50
6:04
#717
20M
20.00 mi12:01:501:59:175:588:22
6:09
#692
21M
21.00 mi12:08:252:05:526:006:35
6:35
#692
35K
21.75 mi12:12:572:10:246:004:32
6:04
#676
23M
23.00 mi12:21:082:18:356:028:11
6:32
#699
24M
24.00 mi12:27:312:24:586:026:23
6:23
#717
40K
24.85 mi12:33:112:30:386:045:40
6:38
#728
25.2M
25.20 mi12:35:432:33:106:052:32
7:21
#751
Finish
26.22 mi12:42:152:39:426:066:32
6:25
#778
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi115310911091758(Top 3%)709(Top 4%)709(Top 30%)
10K6.21 mi3.10 mi1046+107986+105986+105991(Top 3%)936(Top 6%)936(Top 39%)
15K9.32 mi3.11 mi953+93897+89897+89758(Top 3%)709(Top 4%)709(Top 30%)
20K12.43 mi3.11 mi853+100802+95802+95630(Top 2%)583(Top 4%)583(Top 24%)
Half13.11 mi0.68 mi853802802809(Top 3%)763(Top 5%)763(Top 32%)
25K15.53 mi2.42 mi767+86718+84718+84467(Top 2%)434(Top 3%)434(Top 18%)
30K18.64 mi3.11 mi717+50670+48670+48607(Top 2%)566(Top 4%)566(Top 24%)
20M20.00 mi1.36 mi692+25645+25645+25630(Top 2%)590(Top 4%)590(Top 25%)
21M21.00 mi1.00 mi692645645856(Top 3%)808(Top 5%)808(Top 34%)
35K21.75 mi0.75 mi676+16629+16629+16841(Top 3%)786(Top 5%)786(Top 33%)
23M23.00 mi1.25 mi699-23651-22651-221565(Top 6%)1463(Top 9%)1463(Top 61%)
24M24.00 mi1.00 mi717-18668-17668-171576(Top 6%)1469(Top 9%)1469(Top 62%)
40K24.85 mi0.85 mi728-11679-11679-112034(Top 7%)1872(Top 12%)1872(Top 78%)
25.2M25.20 mi0.35 mi751-23702-23702-232635(Top 9%)2337(Top 15%)2337(Top 98%)
Finish26.22 mi1.02 mi778-27726-24726-242334(Top 8%)2126(Top 13%)2126(Top 89%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21stories
+97ft-345ft

Overall

758

Males

709

M45-49

709

5K→10K

3.1 - 6.2 mi

Top 3%
×5stories
+79ft-138ft

Overall

991

Males

936

M45-49

936

10K→15K

6.2 - 9.3 mi

Top 3%
×3stories
+67ft-78ft

Overall

758

Males

709

M45-49

709

15K→20K

9.3 - 12.4 mi

Top 2%
×5stories
+106ft-86ft

Overall

630

Males

583

M45-49

583

20K→Half

12.4 - 13.1 mi

Top 3%
×2stories
+19ft-37ft

Overall

809

Males

763

M45-49

763

Half→25K

13.1 - 15.5 mi

Top 2%
×4stories
+66ft-88ft

Overall

467

Males

434

M45-49

434

25K→30K

15.5 - 18.6 mi

Top 2%
×9stories
+181ft-148ft

Overall

607

Males

566

M45-49

566

30K→20M

18.6 - 20.0 mi

Top 2%
×5stories
+64ft-50ft

Overall

630

Males

590

M45-49

590

20M→21M

20.0 - 21.0 mi

Top 3%
×8stories
+106ft-24ft

Overall

856

Males

808

M45-49

808

21M→35K

21.0 - 21.8 mi

Top 3%
×7stories
+17ft-86ft

Overall

841

Males

786

M45-49

786

35K→23M

21.8 - 23.0 mi

Top 6%
×5stories
+23ft-63ft

Overall

1565

Males

1463

M45-49

1463

23M→24M

23.0 - 24.0 mi

Top 6%
×6stories
+12ft-82ft

Overall

1576

Males

1469

M45-49

1469

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

2034

Males

1872

M45-49

1872

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2635

Males

2337

M45-49

2337

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2334

Males

2126

M45-49

2126

Passing Analysis

Category:
Athletes Passed
570
Passed By
195
Net Change
+375
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1153
5K → 10K12215+107#1153#1046
10K → 15K974+93#1046#953
15K → 20K1022+100#953#853
20K → Half660#853#853
Half → 25K860+86#853#767
25K → 30K6111+50#767#717
30K → 20M316+25#717#692
20M → 21M14140#692#692
21M → 35K226+16#692#676
35K → 23M629-23#676#699
23M → 24M725-18#699#717
24M → 40K617-11#717#728
40K → 25.2M023-23#728#751
25.2M → Finish1037-27#751#778
TOTALS570195+375
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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