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BOSTON MARATHON 2025

Björn Dieball

Bib: 14897•M

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:35
Rank: #15808
Start → 5K
24:35 | 7:55/mi
10K· 6.21 mi
49:56
Rank: #16795 (-987)
5K → 10K
25:21 | 8:10/mi
15K· 9.32 mi
1:15:10
Rank: #16805 (-10)
10K → 15K
25:14 | 8:07/mi
20K· 12.43 mi
1:40:11
Rank: #16391 (+414)
15K → 20K
25:01 | 8:03/mi
Half· 13.11 mi
1:45:35
Rank: #16334 (+57)
20K → Half
5:24 | 7:55/mi
25K· 15.53 mi
2:05:20
Rank: #16086 (+248)
Half → 25K
19:45 | 8:09/mi
30K· 18.64 mi
2:31:34
Rank: #15753 (+333)
25K → 30K
26:14 | 8:27/mi
20M
2:43:15
Rank: #15570 (+183)
30K → 20M
11:41 | 8:36/mi
21M
2:52:36
Rank: #15522 (+48)
20M → 21M
9:21 | 9:21/mi
35K· 21.75 mi
2:58:47
Rank: #15464 (+58)
21M → 35K
6:11 | 8:16/mi
23M
3:10:13
Rank: #15516 (-52)
35K → 23M
11:26 | 9:08/mi
24M
3:18:41
Rank: #15458 (+58)
23M → 24M
8:28 | 8:28/mi
40K· 24.85 mi
3:26:01
Rank: #15371 (+87)
24M → 40K
7:20 | 8:35/mi
25.2M
3:29:37
Rank: #15423 (-52)
40K → 25.2M
3:36 | 10:26/mi
Finish· 26.22 mi
3:38:31
Rank: #15494 (-71)
25.2M → Finish
8:54 | 8:44/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:35
Pace8:03 /mi
2nd Half
Distance13.11 mi
Time1:52:56
Pace8:37 /mi
📊Positive Split: 7.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:4524:357:5524:35
7:55
-
10K
6.21 mi11:20:0649:568:0225:21
8:10
+0:15
15K
9.32 mi11:45:201:15:108:0425:14
8:07
-0:03
20K
12.43 mi12:10:211:40:118:0425:01
8:03
-0:04
Half
13.11 mi12:15:451:45:358:035:24
7:55
-0:08
25K
15.53 mi12:35:302:05:208:0419:45
8:09
+0:14
30K
18.64 mi13:01:442:31:348:0826:14
8:27
+0:18
20M
20.00 mi13:13:252:43:158:1011:41
8:36
+0:09
21M
21.00 mi13:22:462:52:368:139:21
9:21
+0:45
35K
21.75 mi13:28:572:58:478:136:11
8:16
-1:05
23M
23.00 mi13:40:233:10:138:1611:26
9:08
+0:52
24M
24.00 mi13:48:513:18:418:178:28
8:28
-0:40
40K
24.85 mi13:56:113:26:018:177:20
8:35
+0:07
25.2M
25.20 mi13:59:473:29:378:193:36
10:26
+1:51
Finish
26.22 mi14:08:413:38:318:208:54
8:44
-1:42

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

7:55 /mi

Average Pace

8:20 /mi

Slowest Pace

10:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:20:14

37% of race

Time at Steady Pace

1:53:54

52% of race

Time at Slower Pace

24:23

11% of race

Average Pace: 8:20 /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 mi10:54:4524:357:5524:35
7:55
#15808
10K
6.21 mi11:20:0649:568:0225:21
8:10
#16795
15K
9.32 mi11:45:201:15:108:0425:14
8:07
#16805
20K
12.43 mi12:10:211:40:118:0425:01
8:03
#16391
Half
13.11 mi12:15:451:45:358:035:24
7:55
#16334
25K
15.53 mi12:35:302:05:208:0419:45
8:09
#16086
30K
18.64 mi13:01:442:31:348:0826:14
8:27
#15753
20M
20.00 mi13:13:252:43:158:1011:41
8:36
#15570
21M
21.00 mi13:22:462:52:368:139:21
9:21
#15522
35K
21.75 mi13:28:572:58:478:136:11
8:16
#15464
23M
23.00 mi13:40:233:10:138:1611:26
9:08
#15516
24M
24.00 mi13:48:513:18:418:178:28
8:28
#15458
40K
24.85 mi13:56:113:26:018:177:20
8:35
#15371
25.2M
25.20 mi13:59:473:29:378:193:36
10:26
#15423
Finish
26.22 mi14:08:413:38:318:208:54
8:44
#15494
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi15808107331073316879(Top 59%)11168(Top 69%)11168(Top 560%)
10K6.21 mi3.10 mi16795-98711133-40011133-40017600(Top 62%)11486(Top 71%)11486(Top 575%)
15K9.32 mi3.11 mi16805-1011144-1111144-1116879(Top 59%)11168(Top 69%)11168(Top 560%)
20K12.43 mi3.11 mi16391+41410968+17610968+17615286(Top 54%)10450(Top 65%)10450(Top 524%)
Half13.11 mi0.68 mi16334+5710938+3010938+3015175(Top 53%)10421(Top 65%)10421(Top 522%)
25K15.53 mi2.42 mi16086+24810827+11110827+11114941(Top 53%)10192(Top 63%)10192(Top 511%)
30K18.64 mi3.11 mi15753+33310622+20510622+20514413(Top 51%)9791(Top 61%)9791(Top 491%)
20M20.00 mi1.36 mi15570+18310511+11110511+11114399(Top 51%)9642(Top 60%)9642(Top 483%)
21M21.00 mi1.00 mi15522+4810452+5910452+5915376(Top 54%)9948(Top 62%)9948(Top 498%)
35K21.75 mi0.75 mi15464+5810416+3610416+3614024(Top 49%)9309(Top 58%)9309(Top 466%)
23M23.00 mi1.25 mi15516-5210394+2210394+2216986(Top 60%)10499(Top 65%)10499(Top 526%)
24M24.00 mi1.00 mi15458+5810348+4610348+4614282(Top 50%)9281(Top 58%)9281(Top 465%)
40K24.85 mi0.85 mi15371+8710277+7110277+7113915(Top 49%)8964(Top 56%)8964(Top 449%)
25.2M25.20 mi0.35 mi15423-5210287-1010287-1018731(Top 66%)11175(Top 69%)11175(Top 560%)
Finish26.22 mi1.02 mi15494-7110304-1710304-1717649(Top 62%)10702(Top 66%)10702(Top 536%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21stories
+97ft-345ft

Overall

16879

Males

11168

M50-54

11168

5K→10K

3.1 - 6.2 mi

Top 62%
×5stories
+79ft-138ft

Overall

17600

Males

11486

M50-54

11486

10K→15K

6.2 - 9.3 mi

Top 59%
×3stories
+67ft-78ft

Overall

16879

Males

11168

M50-54

11168

15K→20K

9.3 - 12.4 mi

Top 54%
×5stories
+106ft-86ft

Overall

15286

Males

10450

M50-54

10450

20K→Half

12.4 - 13.1 mi

Top 53%
×2stories
+19ft-37ft

Overall

15175

Males

10421

M50-54

10421

Half→25K

13.1 - 15.5 mi

Top 53%
×4stories
+66ft-88ft

Overall

14941

Males

10192

M50-54

10192

25K→30K

15.5 - 18.6 mi

Top 51%
×9stories
+181ft-148ft

Overall

14413

Males

9791

M50-54

9791

30K→20M

18.6 - 20.0 mi

Top 51%
×5stories
+64ft-50ft

Overall

14399

Males

9642

M50-54

9642

20M→21M

20.0 - 21.0 mi

Top 54%
×8stories
+106ft-24ft

Overall

15376

Males

9948

M50-54

9948

21M→35K

21.0 - 21.8 mi

Top 49%
×7stories
+17ft-86ft

Overall

14024

Males

9309

M50-54

9309

35K→23M

21.8 - 23.0 mi

Top 60%
×5stories
+23ft-63ft

Overall

16986

Males

10499

M50-54

10499

23M→24M

23.0 - 24.0 mi

Top 50%
×6stories
+12ft-82ft

Overall

14282

Males

9281

M50-54

9281

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

13915

Males

8964

M50-54

8964

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

18731

Males

11175

M50-54

11175

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2stories
+22ft-21ft

Overall

17649

Males

10702

M50-54

10702

Passing Analysis

Category:
Athletes Passed
2302
Passed By
1988
Net Change
+314
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15808
5K → 10K701057-987#15808#16795
10K → 15K211221-10#16795#16805
15K → 20K45339+414#16805#16391
20K → Half7316+57#16391#16334
Half → 25K28739+248#16334#16086
25K → 30K40774+333#16086#15753
30K → 20M21633+183#15753#15570
20M → 21M13890+48#15570#15522
21M → 35K8325+58#15522#15464
35K → 23M94146-52#15464#15516
23M → 24M10042+58#15516#15458
24M → 40K12033+87#15458#15371
40K → 25.2M1163-52#15371#15423
25.2M → Finish39110-71#15423#15494
TOTALS23021988+314
📊

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