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BOSTON MARATHON 2025

Brian Williams

Bib: 30155•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M55-59)
#0 / 1648
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:41/mi
26:58
↑ 97↓ 3451.5%
10K· 6.21 mi
8:36/mi
53:42
↑ 79↓ 1380.4%
15K· 9.32 mi
8:36/mi
1:20:24
↑ 67↓ 78
20K· 12.43 mi
8:45/mi
1:47:35
↑ 106↓ 860.1%
Half· 13.11 mi
8:29/mi
1:53:22
↑ 19↓ 370.5%
25K· 15.53 mi
8:46/mi
2:14:37
↑ 66↓ 880.2%
30K· 18.64 mi
9:05/mi
2:42:51
↑ 181↓ 1480.2%
20M
9:03/mi
2:55:09
↑ 64↓ 500.2%
21M
9:43/mi
3:04:52
↑ 106↓ 241.6%
35K· 21.75 mi
8:45/mi
3:11:25
↑ 17↓ 861.7%
23M
9:02/mi
3:22:43
↑ 23↓ 630.6%
24M
8:54/mi
3:31:37
↓ 821.3%
40K· 24.85 mi
8:51/mi
3:39:11
↓ 200.3%
25.2M
9:46/mi
3:42:33
↑ 13↓ 160.2%
Finish· 26.22 mi
8:27/mi
3:51:10
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:22
Pace8:39 /mi
2nd Half
Distance13.11 mi
Time1:57:48
Pace8:59 /mi
📊Positive Split: 3.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:3026:588:4126:58
8:41
-
10K
6.21 mi12:15:1453:428:3926:44
8:36
-0:05
15K
9.32 mi12:41:561:20:248:3826:42
8:36
0:00
20K
12.43 mi13:09:071:47:358:3927:11
8:45
+0:09
Half
13.11 mi13:14:541:53:228:395:47
8:29
-0:16
25K
15.53 mi13:36:092:14:378:4021:15
8:46
+0:17
30K
18.64 mi14:04:232:42:518:4428:14
9:05
+0:19
20M
20.00 mi14:16:412:55:098:4512:18
9:03
-0:02
21M
21.00 mi14:26:243:04:528:489:43
9:43
+0:40
35K
21.75 mi14:32:573:11:258:486:33
8:45
-0:58
23M
23.00 mi14:44:153:22:438:4911:18
9:02
+0:17
24M
24.00 mi14:53:093:31:378:498:54
8:54
-0:08
40K
24.85 mi15:00:433:39:118:497:34
8:51
-0:03
25.2M
25.20 mi15:04:053:42:338:503:22
9:46
+0:55
Finish
26.22 mi15:12:423:51:108:498:37
8:27
-1:19

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

8:27 /mi

Average Pace

8:49 /mi

Slowest Pace

9:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:38:05

94% of race

Time at Steady Pace

13:05

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:49 /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 mi11:48:3026:588:4126:58
8:41
#20908
10K
6.21 mi12:15:1453:428:3926:44
8:36
#20622
15K
9.32 mi12:41:561:20:248:3826:42
8:36
#20339
20K
12.43 mi13:09:071:47:358:3927:11
8:45
#20165
Half
13.11 mi13:14:541:53:228:395:47
8:29
#20102
25K
15.53 mi13:36:092:14:378:4021:15
8:46
#19869
30K
18.64 mi14:04:232:42:518:4428:14
9:05
#19523
20M
20.00 mi14:16:412:55:098:4512:18
9:03
#19332
21M
21.00 mi14:26:243:04:528:489:43
9:43
#19196
35K
21.75 mi14:32:573:11:258:486:33
8:45
#19122
23M
23.00 mi14:44:153:22:438:4911:18
9:02
#18949
24M
24.00 mi14:53:093:31:378:498:54
8:54
#18856
40K
24.85 mi15:00:433:39:118:497:34
8:51
#18734
25.2M
25.20 mi15:04:053:42:338:503:22
9:46
#18676
Finish
26.22 mi15:12:423:51:108:498:37
8:27
#18579
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi20908128221282219882(Top 70%)12446(Top 77%)12446(Top 755%)
10K6.21 mi3.10 mi20622+28612719+10312719+10320370(Top 72%)12637(Top 78%)12637(Top 767%)
15K9.32 mi3.11 mi20339+28312617+10212617+10219882(Top 70%)12446(Top 77%)12446(Top 755%)
20K12.43 mi3.11 mi20165+17412540+7712540+7719665(Top 69%)12312(Top 76%)12312(Top 747%)
Half13.11 mi0.68 mi20102+6312511+2912511+2918997(Top 67%)12037(Top 75%)12037(Top 730%)
25K15.53 mi2.42 mi19869+23312407+10412407+10418739(Top 66%)11852(Top 74%)11852(Top 719%)
30K18.64 mi3.11 mi19523+34612216+19112216+19118126(Top 64%)11430(Top 71%)11430(Top 694%)
20M20.00 mi1.36 mi19332+19112107+10912107+10917062(Top 60%)10850(Top 67%)10850(Top 658%)
21M21.00 mi1.00 mi19196+13612032+7512032+7517100(Top 60%)10745(Top 67%)10745(Top 652%)
35K21.75 mi0.75 mi19122+7411984+4811984+4817004(Top 60%)10619(Top 66%)10619(Top 644%)
23M23.00 mi1.25 mi18949+17311872+11211872+11216408(Top 58%)10250(Top 64%)10250(Top 622%)
24M24.00 mi1.00 mi18856+9311814+5811814+5816847(Top 59%)10402(Top 65%)10402(Top 631%)
40K24.85 mi0.85 mi18734+12211727+8711727+8715462(Top 54%)9649(Top 60%)9649(Top 585%)
25.2M25.20 mi0.35 mi18676+5811689+3811689+3815896(Top 56%)9833(Top 61%)9833(Top 597%)
Finish26.22 mi1.02 mi18579+9711636+5311636+5315931(Top 56%)9913(Top 62%)9913(Top 602%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21story building
+97ft-345ft

Overall

19882

Males

12446

M55-59

12446

5K→10K

3.1 - 6.2 mi

Top 72%
×5story building
+79ft-138ft

Overall

20370

Males

12637

M55-59

12637

10K→15K

6.2 - 9.3 mi

Top 70%
×3story building
+67ft-78ft

Overall

19882

Males

12446

M55-59

12446

15K→20K

9.3 - 12.4 mi

Top 69%
×5story building
+106ft-86ft

Overall

19665

Males

12312

M55-59

12312

20K→Half

12.4 - 13.1 mi

Top 67%
×2story building
+19ft-37ft

Overall

18997

Males

12037

M55-59

12037

Half→25K

13.1 - 15.5 mi

Top 66%
×4story building
+66ft-88ft

Overall

18739

Males

11852

M55-59

11852

25K→30K

15.5 - 18.6 mi

Top 64%
×9story building
+181ft-148ft

Overall

18126

Males

11430

M55-59

11430

30K→20M

18.6 - 20.0 mi

Top 60%
×5story building
+64ft-50ft

Overall

17062

Males

10850

M55-59

10850

20M→21M

20.0 - 21.0 mi

Top 60%
×8story building
+106ft-24ft

Overall

17100

Males

10745

M55-59

10745

21M→35K

21.0 - 21.8 mi

Top 60%
×7story building
+17ft-86ft

Overall

17004

Males

10619

M55-59

10619

35K→23M

21.8 - 23.0 mi

Top 58%
×5story building
+23ft-63ft

Overall

16408

Males

10250

M55-59

10250

23M→24M

23.0 - 24.0 mi

Top 59%
×6story building
+12ft-82ft

Overall

16847

Males

10402

M55-59

10402

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

15462

Males

9649

M55-59

9649

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

15896

Males

9833

M55-59

9833

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2story building
+22ft-21ft

Overall

15931

Males

9913

M55-59

9913

Passing Analysis

Category:
Athletes Passed
2925
Passed By
596
Net Change
+2329
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20908
5K → 10K453167+286#20908#20622
10K → 15K35673+283#20622#20339
15K → 20K26389+174#20339#20165
20K → Half729+63#20165#20102
Half → 25K27340+233#20102#19869
25K → 30K40761+346#19869#19523
30K → 20M20615+191#19523#19332
20M → 21M17539+136#19332#19196
21M → 35K9420+74#19196#19122
35K → 23M18613+173#19122#18949
23M → 24M11926+93#18949#18856
24M → 40K13513+122#18856#18734
40K → 25.2M679+58#18734#18676
25.2M → Finish11922+97#18676#18579
TOTALS2925596+2329
📊

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