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BOSTON MARATHON 2025

Brian Diemer

Bib: 1984•M

MI

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M60-64)
#0 / 1259
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
7:26/mi
23:07
↑ 97↓ 3451.5%
10K· 6.21 mi
7:34/mi
46:36
↑ 79↓ 1380.4%
15K· 9.32 mi
7:38/mi
1:10:18
↑ 67↓ 78
20K· 12.43 mi
7:51/mi
1:34:42
↑ 106↓ 860.1%
Half· 13.11 mi
7:46/mi
1:40:00
↑ 19↓ 370.5%
25K· 15.53 mi
7:54/mi
1:59:10
↑ 66↓ 880.2%
30K· 18.64 mi
9:00/mi
2:27:08
↑ 181↓ 1480.2%
20M
12:10/mi
2:43:40
↑ 64↓ 500.2%
21M
14:43/mi
2:58:23
↑ 106↓ 241.6%
35K· 21.75 mi
13:03/mi
3:08:09
↑ 17↓ 861.7%
23M
11:55/mi
3:23:04
↑ 23↓ 630.6%
24M
12:31/mi
3:35:35
↓ 821.3%
40K· 24.85 mi
10:23/mi
3:44:28
↓ 200.3%
25.2M
9:57/mi
3:47:54
↑ 13↓ 160.2%
Finish· 26.22 mi
8:41/mi
3:56:45
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:00
Pace7:38 /mi
2nd Half
Distance13.11 mi
Time2:16:45
Pace10:26 /mi
📊Positive Split: 36.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:3223:077:2623:07
7:26
-
10K
6.21 mi10:48:0146:367:3023:29
7:34
+0:08
15K
9.32 mi11:11:431:10:187:3323:42
7:38
+0:04
20K
12.43 mi11:36:071:34:427:3724:24
7:51
+0:13
Half
13.11 mi11:41:251:40:007:385:18
7:46
-0:05
25K
15.53 mi12:00:351:59:107:4019:10
7:54
+0:08
30K
18.64 mi12:28:332:27:087:5427:58
9:00
+1:06
20M
20.00 mi12:45:052:43:408:1116:32
12:10
+3:10
21M
21.00 mi12:59:482:58:238:3014:43
14:43
+2:33
35K
21.75 mi13:09:343:08:098:399:46
13:03
-1:40
23M
23.00 mi13:24:293:23:048:5014:55
11:55
-1:08
24M
24.00 mi13:37:003:35:358:5912:31
12:31
+0:36
40K
24.85 mi13:45:533:44:289:028:53
10:23
-2:08
25.2M
25.20 mi13:49:193:47:549:033:26
9:57
-0:26
Finish
26.22 mi13:58:103:56:459:028:51
8:41
-1:16

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

7:26 /mi

Average Pace

9:02 /mi

Slowest Pace

14:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:15:36

32% of race

Time at Steady Pace

1:23:49

35% of race

Time at Slower Pace

1:17:20

33% of race

Average Pace: 9:02 /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 mi10:24:3223:077:2623:07
7:26
#11706
10K
6.21 mi10:48:0146:367:3023:29
7:34
#12130
15K
9.32 mi11:11:431:10:187:3323:42
7:38
#12349
20K
12.43 mi11:36:071:34:427:3724:24
7:51
#12662
Half
13.11 mi11:41:251:40:007:385:18
7:46
#12736
25K
15.53 mi12:00:351:59:107:4019:10
7:54
#12767
30K
18.64 mi12:28:332:27:087:5427:58
9:00
#13817
20M
20.00 mi12:45:052:43:408:1116:32
12:10
#15732
21M
21.00 mi12:59:482:58:238:3014:43
14:43
#17324
35K
21.75 mi13:09:343:08:098:399:46
13:03
#18230
23M
23.00 mi13:24:293:23:048:5014:55
11:55
#19035
24M
24.00 mi13:37:003:35:358:5912:31
12:31
#19707
40K
24.85 mi13:45:533:44:289:028:53
10:23
#19827
25.2M
25.20 mi13:49:193:47:549:033:26
9:57
#19782
Finish
26.22 mi13:58:103:56:459:028:51
8:41
#19690
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi117069047904712859(Top 45%)9464(Top 59%)9464(Top 752%)
10K6.21 mi3.10 mi12130-4249221-1749221-17412641(Top 45%)9442(Top 59%)9442(Top 750%)
15K9.32 mi3.11 mi12349-2199291-709291-7012859(Top 45%)9464(Top 59%)9464(Top 752%)
20K12.43 mi3.11 mi12662-3139382-919382-9113712(Top 48%)9743(Top 60%)9743(Top 774%)
Half13.11 mi0.68 mi12736-749402-209402-2013980(Top 49%)9924(Top 62%)9924(Top 788%)
25K15.53 mi2.42 mi12767-319387+159387+1513129(Top 46%)9360(Top 58%)9360(Top 743%)
30K18.64 mi3.11 mi13817-10509772-3859772-38517704(Top 62%)11242(Top 70%)11242(Top 893%)
20M20.00 mi1.36 mi15732-191510576-80410576-80425490(Top 90%)14677(Top 91%)14677(Top 1166%)
21M21.00 mi1.00 mi17324-159211203-62711203-62726912(Top 95%)15326(Top 95%)15326(Top 1217%)
35K21.75 mi0.75 mi18230-90611590-38711590-38727011(Top 95%)15344(Top 95%)15344(Top 1219%)
23M23.00 mi1.25 mi19035-80511915-32511915-32524989(Top 88%)14329(Top 89%)14329(Top 1138%)
24M24.00 mi1.00 mi19707-67212169-25412169-25426324(Top 93%)14973(Top 93%)14973(Top 1189%)
40K24.85 mi0.85 mi19827-12012203-3412203-3421606(Top 76%)12560(Top 78%)12560(Top 998%)
25.2M25.20 mi0.35 mi19782+4512181+2212181+2216805(Top 59%)10288(Top 64%)10288(Top 817%)
Finish26.22 mi1.02 mi19690+9212122+5912122+5917375(Top 61%)10588(Top 66%)10588(Top 841%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21story building
+97ft-345ft

Overall

12859

Males

9464

M60-64

9464

5K→10K

3.1 - 6.2 mi

Top 45%
×5story building
+79ft-138ft

Overall

12641

Males

9442

M60-64

9442

10K→15K

6.2 - 9.3 mi

Top 45%
×3story building
+67ft-78ft

Overall

12859

Males

9464

M60-64

9464

15K→20K

9.3 - 12.4 mi

Top 48%
×5story building
+106ft-86ft

Overall

13712

Males

9743

M60-64

9743

20K→Half

12.4 - 13.1 mi

Top 49%
×2story building
+19ft-37ft

Overall

13980

Males

9924

M60-64

9924

Half→25K

13.1 - 15.5 mi

Top 46%
×4story building
+66ft-88ft

Overall

13129

Males

9360

M60-64

9360

25K→30K

15.5 - 18.6 mi

Top 62%
×9story building
+181ft-148ft

Overall

17704

Males

11242

M60-64

11242

30K→20M

18.6 - 20.0 mi

Top 90%
×5story building
+64ft-50ft

Overall

25490

Males

14677

M60-64

14677

20M→21M

20.0 - 21.0 mi

Top 95%
×8story building
+106ft-24ft

Overall

26912

Males

15326

M60-64

15326

21M→35K

21.0 - 21.8 mi

Top 95%
×7story building
+17ft-86ft

Overall

27011

Males

15344

M60-64

15344

35K→23M

21.8 - 23.0 mi

Top 88%
×5story building
+23ft-63ft

Overall

24989

Males

14329

M60-64

14329

23M→24M

23.0 - 24.0 mi

Top 93%
×6story building
+12ft-82ft

Overall

26324

Males

14973

M60-64

14973

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

21606

Males

12560

M60-64

12560

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

16805

Males

10288

M60-64

10288

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2story building
+22ft-21ft

Overall

17375

Males

10588

M60-64

10588

Passing Analysis

Category:
Athletes Passed
797
Passed By
8781
Net Change
-7984
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11706
5K → 10K113537-424#11706#12130
10K → 15K117336-219#12130#12349
15K → 20K106419-313#12349#12662
20K → Half1488-74#12662#12736
Half → 25K149180-31#12736#12767
25K → 30K721122-1050#12767#13817
30K → 20M41919-1915#13817#15732
20M → 21M31595-1592#15732#17324
21M → 35K4910-906#17324#18230
35K → 23M14819-805#18230#19035
23M → 24M6678-672#19035#19707
24M → 40K32152-120#19707#19827
40K → 25.2M494+45#19827#19782
25.2M → Finish11422+92#19782#19690
TOTALS7978781-7984
📊

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