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BOSTON MARATHON 2025

Mark Williamson

Bib: 7670•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 18%
Gender (Male)
#0 / 16105
Top 29%
Masters (Masters Men)
#0 / 10463
Top 15%
Division (M50-54)
#0 / 1996
Top 9%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:01
Rank: #6030
Start → 5K
21:01 | 6:46/mi
10K· 6.21 mi
42:00
Rank: #5915 (+115)
5K → 10K
20:59 | 6:45/mi
15K· 9.32 mi
1:03:05
Rank: #5899 (+16)
10K → 15K
21:05 | 6:47/mi
20K· 12.43 mi
1:24:13
Rank: #5729 (+170)
15K → 20K
21:08 | 6:48/mi
Half· 13.11 mi
1:28:52
Rank: #5760 (-31)
20K → Half
4:39 | 6:49/mi
25K· 15.53 mi
1:45:25
Rank: #5587 (+173)
Half → 25K
16:33 | 6:50/mi
30K· 18.64 mi
2:07:09
Rank: #5338 (+249)
25K → 30K
21:44 | 7:00/mi
20M
2:16:46
Rank: #5252 (+86)
30K → 20M
9:37 | 7:05/mi
21M
2:24:12
Rank: #5162 (+90)
20M → 21M
7:26 | 7:26/mi
35K· 21.75 mi
2:29:31
Rank: #5183 (-21)
21M → 35K
5:19 | 7:06/mi
23M
2:38:34
Rank: #5152 (+31)
35K → 23M
9:03 | 7:14/mi
24M
2:45:44
Rank: #5144 (+8)
23M → 24M
7:10 | 7:10/mi
40K· 24.85 mi
2:51:45
Rank: #5069 (+75)
24M → 40K
6:01 | 7:02/mi
25.2M
2:54:46
Rank: #5125 (-56)
40K → 25.2M
3:01 | 8:45/mi
Finish· 26.22 mi
3:02:04
Rank: #5131 (-6)
25.2M → Finish
7:18 | 7:10/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:52
Pace6:47 /mi
2nd Half
Distance13.11 mi
Time1:33:12
Pace7:07 /mi
📊Positive Split: 4.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:29:1821:016:4621:01
6:46
-
10K
6.21 mi10:50:1742:006:4620:59
6:45
-0:01
15K
9.32 mi11:11:221:03:056:4621:05
6:47
+0:02
20K
12.43 mi11:32:301:24:136:4721:08
6:48
+0:01
Half
13.11 mi11:37:091:28:526:474:39
6:49
+0:01
25K
15.53 mi11:53:421:45:256:4716:33
6:50
+0:01
30K
18.64 mi12:15:262:07:096:4921:44
7:00
+0:10
20M
20.00 mi12:25:032:16:466:509:37
7:05
+0:05
21M
21.00 mi12:32:292:24:126:527:26
7:26
+0:21
35K
21.75 mi12:37:482:29:316:525:19
7:06
-0:20
23M
23.00 mi12:46:512:38:346:549:03
7:14
+0:08
24M
24.00 mi12:54:012:45:446:547:10
7:10
-0:04
40K
24.85 mi13:00:022:51:456:556:01
7:02
-0:08
25.2M
25.20 mi13:03:032:54:466:563:01
8:45
+1:43
Finish
26.22 mi13:10:213:02:046:577:18
7:10
-1:35

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

6:45 /mi

Average Pace

6:57 /mi

Slowest Pace

8:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:03:05

35% of race

Time at Steady Pace

1:48:32

60% of race

Time at Slower Pace

10:27

6% of race

Average Pace: 6:57 /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 mi10:29:1821:016:4621:01
6:46
#6030
10K
6.21 mi10:50:1742:006:4620:59
6:45
#5915
15K
9.32 mi11:11:221:03:056:4621:05
6:47
#5899
20K
12.43 mi11:32:301:24:136:4721:08
6:48
#5729
Half
13.11 mi11:37:091:28:526:474:39
6:49
#5760
25K
15.53 mi11:53:421:45:256:4716:33
6:50
#5587
30K
18.64 mi12:15:262:07:096:4921:44
7:00
#5338
20M
20.00 mi12:25:032:16:466:509:37
7:05
#5252
21M
21.00 mi12:32:292:24:126:527:26
7:26
#5162
35K
21.75 mi12:37:482:29:316:525:19
7:06
#5183
23M
23.00 mi12:46:512:38:346:549:03
7:14
#5152
24M
24.00 mi12:54:012:45:446:547:10
7:10
#5144
40K
24.85 mi13:00:022:51:456:556:01
7:02
#5069
25.2M
25.20 mi13:03:032:54:466:563:01
8:45
#5125
Finish
26.22 mi13:10:213:02:046:577:18
7:10
#5131
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi6030553855385937(Top 21%)5403(Top 34%)5403(Top 271%)
10K6.21 mi3.10 mi5915+1155438+1005438+1005867(Top 21%)5368(Top 33%)5368(Top 269%)
15K9.32 mi3.11 mi5899+165411+275411+275937(Top 21%)5403(Top 34%)5403(Top 271%)
20K12.43 mi3.11 mi5729+1705259+1525259+1525305(Top 19%)4871(Top 30%)4871(Top 244%)
Half13.11 mi0.68 mi5760-315287-285287-286209(Top 22%)5594(Top 35%)5594(Top 280%)
25K15.53 mi2.42 mi5587+1735134+1535134+1535064(Top 18%)4641(Top 29%)4641(Top 233%)
30K18.64 mi3.11 mi5338+2494900+2344900+2344659(Top 16%)4251(Top 26%)4251(Top 213%)
20M20.00 mi1.36 mi5252+864816+844816+844542(Top 16%)4126(Top 26%)4126(Top 207%)
21M21.00 mi1.00 mi5162+904736+804736+804271(Top 15%)3829(Top 24%)3829(Top 192%)
35K21.75 mi0.75 mi5183-214748-124748-125977(Top 21%)5034(Top 31%)5034(Top 252%)
23M23.00 mi1.25 mi5152+314712+364712+365023(Top 18%)4330(Top 27%)4330(Top 217%)
24M24.00 mi1.00 mi5144+84691+214691+215586(Top 20%)4649(Top 29%)4649(Top 233%)
40K24.85 mi0.85 mi5069+754623+684623+684109(Top 14%)3567(Top 22%)3567(Top 179%)
25.2M25.20 mi0.35 mi5125-564660-374660-3710173(Top 36%)6997(Top 43%)6997(Top 351%)
Finish26.22 mi1.02 mi5131-64657+34657+36766(Top 24%)5176(Top 32%)5176(Top 259%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21stories
+97ft-345ft

Overall

5937

Males

5403

M50-54

5403

5K→10K

3.1 - 6.2 mi

Top 21%
×5stories
+79ft-138ft

Overall

5867

Males

5368

M50-54

5368

10K→15K

6.2 - 9.3 mi

Top 21%
×3stories
+67ft-78ft

Overall

5937

Males

5403

M50-54

5403

15K→20K

9.3 - 12.4 mi

Top 19%
×5stories
+106ft-86ft

Overall

5305

Males

4871

M50-54

4871

20K→Half

12.4 - 13.1 mi

Top 22%
×2stories
+19ft-37ft

Overall

6209

Males

5594

M50-54

5594

Half→25K

13.1 - 15.5 mi

Top 18%
×4stories
+66ft-88ft

Overall

5064

Males

4641

M50-54

4641

25K→30K

15.5 - 18.6 mi

Top 16%
×9stories
+181ft-148ft

Overall

4659

Males

4251

M50-54

4251

30K→20M

18.6 - 20.0 mi

Top 16%
×5stories
+64ft-50ft

Overall

4542

Males

4126

M50-54

4126

20M→21M

20.0 - 21.0 mi

Top 15%
×8stories
+106ft-24ft

Overall

4271

Males

3829

M50-54

3829

21M→35K

21.0 - 21.8 mi

Top 21%
×7stories
+17ft-86ft

Overall

5977

Males

5034

M50-54

5034

35K→23M

21.8 - 23.0 mi

Top 18%
×5stories
+23ft-63ft

Overall

5023

Males

4330

M50-54

4330

23M→24M

23.0 - 24.0 mi

Top 20%
×6stories
+12ft-82ft

Overall

5586

Males

4649

M50-54

4649

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

4109

Males

3567

M50-54

3567

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

10173

Males

6997

M50-54

6997

25.2M→Finish

25.2 - 26.2 mi

Top 24%
×2stories
+22ft-21ft

Overall

6766

Males

5176

M50-54

5176

Passing Analysis

Category:
Athletes Passed
1687
Passed By
788
Net Change
+899
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6030
5K → 10K231116+115#6030#5915
10K → 15K144128+16#5915#5899
15K → 20K21848+170#5899#5729
20K → Half1344-31#5729#5760
Half → 25K19825+173#5760#5587
25K → 30K30556+249#5587#5338
30K → 20M11327+86#5338#5252
20M → 21M13141+90#5252#5162
21M → 35K3758-21#5162#5183
35K → 23M10271+31#5183#5152
23M → 24M6153+8#5152#5144
24M → 40K8611+75#5144#5069
40K → 25.2M965-56#5069#5125
25.2M → Finish3945-6#5125#5131
TOTALS1687788+899
📊

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