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BOSTON MARATHON 2025

William Briggs

Bib: 5540•M

RI

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 16%
Gender (Male)
#0 / 16105
Top 27%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:00
Rank: #5972
Start → 5K
21:00 | 6:46/mi
10K· 6.21 mi
42:04
Rank: #6010 (-38)
5K → 10K
21:04 | 6:47/mi
15K· 9.32 mi
1:03:16
Rank: #6066 (-56)
10K → 15K
21:12 | 6:49/mi
20K· 12.43 mi
1:24:32
Rank: #5957 (+109)
15K → 20K
21:16 | 6:51/mi
Half· 13.11 mi
1:29:10
Rank: #5964 (-7)
20K → Half
4:38 | 6:47/mi
25K· 15.53 mi
1:45:47
Rank: #5796 (+168)
Half → 25K
16:37 | 6:51/mi
30K· 18.64 mi
2:07:22
Rank: #5438 (+358)
25K → 30K
21:35 | 6:57/mi
20M
2:16:52
Rank: #5297 (+141)
30K → 20M
9:30 | 6:59/mi
21M
2:24:06
Rank: #5108 (+189)
20M → 21M
7:14 | 7:14/mi
35K· 21.75 mi
2:29:07
Rank: #5025 (+83)
21M → 35K
5:01 | 6:42/mi
23M
2:37:54
Rank: #4920 (+105)
35K → 23M
8:47 | 7:01/mi
24M
2:44:41
Rank: #4809 (+111)
23M → 24M
6:47 | 6:47/mi
40K· 24.85 mi
2:50:36
Rank: #4731 (+78)
24M → 40K
5:55 | 6:55/mi
25.2M
2:53:13
Rank: #4712 (+19)
40K → 25.2M
2:37 | 7:35/mi
Finish· 26.22 mi
2:59:54
Rank: #4665 (+47)
25.2M → Finish
6:41 | 6:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:10
Pace6:48 /mi
2nd Half
Distance13.11 mi
Time1:30:44
Pace6:55 /mi
📊Positive Split: 1.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:4321:006:4621:00
6:46
-
10K
6.21 mi10:45:4742:046:4621:04
6:47
+0:01
15K
9.32 mi11:06:591:03:166:4721:12
6:49
+0:02
20K
12.43 mi11:28:151:24:326:4821:16
6:51
+0:02
Half
13.11 mi11:32:531:29:106:484:38
6:47
-0:04
25K
15.53 mi11:49:301:45:476:4916:37
6:51
+0:04
30K
18.64 mi12:11:052:07:226:5021:35
6:57
+0:06
20M
20.00 mi12:20:352:16:526:519:30
6:59
+0:02
21M
21.00 mi12:27:492:24:066:527:14
7:14
+0:15
35K
21.75 mi12:32:502:29:076:515:01
6:42
-0:32
23M
23.00 mi12:41:372:37:546:528:47
7:01
+0:19
24M
24.00 mi12:48:242:44:416:526:47
6:47
-0:14
40K
24.85 mi12:54:192:50:366:525:55
6:55
+0:08
25.2M
25.20 mi12:56:562:53:136:522:37
7:35
+0:40
Finish
26.22 mi13:03:372:59:546:526:41
6:34
-1:01

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

6:34 /mi

Average Pace

6:52 /mi

Slowest Pace

7:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:50:03

95% of race

Time at Steady Pace

9:51

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:52 /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 mi10:24:4321:006:4621:00
6:46
#5972
10K
6.21 mi10:45:4742:046:4621:04
6:47
#6010
15K
9.32 mi11:06:591:03:166:4721:12
6:49
#6066
20K
12.43 mi11:28:151:24:326:4821:16
6:51
#5957
Half
13.11 mi11:32:531:29:106:484:38
6:47
#5964
25K
15.53 mi11:49:301:45:476:4916:37
6:51
#5796
30K
18.64 mi12:11:052:07:226:5021:35
6:57
#5438
20M
20.00 mi12:20:352:16:526:519:30
6:59
#5297
21M
21.00 mi12:27:492:24:066:527:14
7:14
#5108
35K
21.75 mi12:32:502:29:076:515:01
6:42
#5025
23M
23.00 mi12:41:372:37:546:528:47
7:01
#4920
24M
24.00 mi12:48:242:44:416:526:47
6:47
#4809
40K
24.85 mi12:54:192:50:366:525:55
6:55
#4731
25.2M
25.20 mi12:56:562:53:136:522:37
7:35
#4712
Finish
26.22 mi13:03:372:59:546:526:41
6:34
#4665
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5972549154916300(Top 22%)5701(Top 35%)5701(Top 101%)
10K6.21 mi3.10 mi6010-385517-265517-266151(Top 22%)5603(Top 35%)5603(Top 99%)
15K9.32 mi3.11 mi6066-565554-375554-376300(Top 22%)5701(Top 35%)5701(Top 101%)
20K12.43 mi3.11 mi5957+1095449+1055449+1055720(Top 20%)5210(Top 32%)5210(Top 92%)
Half13.11 mi0.68 mi5964-75451-25451-25978(Top 21%)5399(Top 34%)5399(Top 96%)
25K15.53 mi2.42 mi5796+1685296+1555296+1555277(Top 19%)4824(Top 30%)4824(Top 86%)
30K18.64 mi3.11 mi5438+3584987+3094987+3094370(Top 15%)4001(Top 25%)4001(Top 71%)
20M20.00 mi1.36 mi5297+1414853+1344853+1344042(Top 14%)3702(Top 23%)3702(Top 66%)
21M21.00 mi1.00 mi5108+1894689+1644689+1643283(Top 12%)3021(Top 19%)3021(Top 54%)
35K21.75 mi0.75 mi5025+834616+734616+733522(Top 12%)3195(Top 20%)3195(Top 57%)
23M23.00 mi1.25 mi4920+1054515+1014515+1013827(Top 13%)3440(Top 21%)3440(Top 61%)
24M24.00 mi1.00 mi4809+1114412+1034412+1033392(Top 12%)3047(Top 19%)3047(Top 54%)
40K24.85 mi0.85 mi4731+784340+724340+723445(Top 12%)3064(Top 19%)3064(Top 54%)
25.2M25.20 mi0.35 mi4712+194318+224318+223777(Top 13%)3259(Top 20%)3259(Top 58%)
Finish26.22 mi1.02 mi4665+474275+434275+433081(Top 11%)2736(Top 17%)2736(Top 48%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21stories
+97ft-345ft

Overall

6300

Males

5701

M18-39

5701

5K→10K

3.1 - 6.2 mi

Top 22%
×5stories
+79ft-138ft

Overall

6151

Males

5603

M18-39

5603

10K→15K

6.2 - 9.3 mi

Top 22%
×3stories
+67ft-78ft

Overall

6300

Males

5701

M18-39

5701

15K→20K

9.3 - 12.4 mi

Top 20%
×5stories
+106ft-86ft

Overall

5720

Males

5210

M18-39

5210

20K→Half

12.4 - 13.1 mi

Top 21%
×2stories
+19ft-37ft

Overall

5978

Males

5399

M18-39

5399

Half→25K

13.1 - 15.5 mi

Top 19%
×4stories
+66ft-88ft

Overall

5277

Males

4824

M18-39

4824

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

4370

Males

4001

M18-39

4001

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

4042

Males

3702

M18-39

3702

20M→21M

20.0 - 21.0 mi

Top 12%
×8stories
+106ft-24ft

Overall

3283

Males

3021

M18-39

3021

21M→35K

21.0 - 21.8 mi

Top 12%
×7stories
+17ft-86ft

Overall

3522

Males

3195

M18-39

3195

35K→23M

21.8 - 23.0 mi

Top 13%
×5stories
+23ft-63ft

Overall

3827

Males

3440

M18-39

3440

23M→24M

23.0 - 24.0 mi

Top 12%
×6stories
+12ft-82ft

Overall

3392

Males

3047

M18-39

3047

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3445

Males

3064

M18-39

3064

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3777

Males

3259

M18-39

3259

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2stories
+22ft-21ft

Overall

3081

Males

2736

M18-39

2736

Passing Analysis

Category:
Athletes Passed
1980
Passed By
673
Net Change
+1307
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5972
5K → 10K165203-38#5972#6010
10K → 15K116172-56#6010#6066
15K → 20K19384+109#6066#5957
20K → Half1724-7#5957#5964
Half → 25K20840+168#5964#5796
25K → 30K38224+358#5796#5438
30K → 20M15817+141#5438#5297
20M → 21M1978+189#5297#5108
21M → 35K907+83#5108#5025
35K → 23M13732+105#5025#4920
23M → 24M12110+111#4920#4809
24M → 40K9820+78#4809#4731
40K → 25.2M3314+19#4731#4712
25.2M → Finish6518+47#4712#4665
TOTALS1980673+1307
📊

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