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BOSTON MARATHON 2025

Stefan Walldorf

Bib: 28210•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M45-49)
#0 / 2386
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:27
Rank: #21684
Start → 5K
27:27 | 8:50/mi
10K· 6.21 mi
53:53
Rank: #20751 (+933)
5K → 10K
26:26 | 8:30/mi
15K· 9.32 mi
1:20:12
Rank: #20227 (+524)
10K → 15K
26:19 | 8:28/mi
20K· 12.43 mi
1:46:30
Rank: #19705 (+522)
15K → 20K
26:18 | 8:28/mi
Half· 13.11 mi
1:52:16
Rank: #19662 (+43)
20K → Half
5:46 | 8:27/mi
25K· 15.53 mi
2:13:03
Rank: #19291 (+371)
Half → 25K
20:47 | 8:34/mi
30K· 18.64 mi
2:41:38
Rank: #19174 (+117)
25K → 30K
28:35 | 9:12/mi
20M
2:54:25
Rank: #19126 (+48)
30K → 20M
12:47 | 9:24/mi
21M
3:04:27
Rank: #19088 (+38)
20M → 21M
10:02 | 10:02/mi
35K· 21.75 mi
3:11:15
Rank: #19075 (+13)
21M → 35K
6:48 | 9:05/mi
23M
3:22:55
Rank: #18997 (+78)
35K → 23M
11:40 | 9:19/mi
24M
3:32:03
Rank: #18959 (+38)
23M → 24M
9:08 | 9:08/mi
40K· 24.85 mi
3:39:46
Rank: #18844 (+115)
24M → 40K
7:43 | 9:02/mi
25.2M
3:43:04
Rank: #18793 (+51)
40K → 25.2M
3:18 | 9:34/mi
Finish· 26.22 mi
3:51:43
Rank: #18686 (+107)
25.2M → Finish
8:39 | 8:29/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:16
Pace8:34 /mi
2nd Half
Distance13.11 mi
Time1:59:27
Pace9:07 /mi
📊Positive Split: 6.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:1927:278:5027:27
8:50
-
10K
6.21 mi12:11:4553:538:4026:26
8:30
-0:20
15K
9.32 mi12:38:041:20:128:3626:19
8:28
-0:02
20K
12.43 mi13:04:221:46:308:3426:18
8:28
0:00
Half
13.11 mi13:10:081:52:168:345:46
8:27
-0:01
25K
15.53 mi13:30:552:13:038:3420:47
8:34
+0:07
30K
18.64 mi13:59:302:41:388:4028:35
9:12
+0:38
20M
20.00 mi14:12:172:54:258:4312:47
9:24
+0:12
21M
21.00 mi14:22:193:04:278:4710:02
10:02
+0:38
35K
21.75 mi14:29:073:11:158:486:48
9:05
-0:57
23M
23.00 mi14:40:473:22:558:4911:40
9:19
+0:14
24M
24.00 mi14:49:553:32:038:509:08
9:08
-0:11
40K
24.85 mi14:57:383:39:468:517:43
9:02
-0:06
25.2M
25.20 mi15:00:563:43:048:513:18
9:34
+0:32
Finish
26.22 mi15:09:353:51:438:518:39
8:29
-1:05

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

8:51 /mi

Slowest Pace

10:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:13:56

84% of race

Time at Steady Pace

27:45

12% of race

Time at Slower Pace

10:02

4% of race

Average Pace: 8:50 /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 mi11:45:1927:278:5027:27
8:50
#21684
10K
6.21 mi12:11:4553:538:4026:26
8:30
#20751
15K
9.32 mi12:38:041:20:128:3626:19
8:28
#20227
20K
12.43 mi13:04:221:46:308:3426:18
8:28
#19705
Half
13.11 mi13:10:081:52:168:345:46
8:27
#19662
25K
15.53 mi13:30:552:13:038:3420:47
8:34
#19291
30K
18.64 mi13:59:302:41:388:4028:35
9:12
#19174
20M
20.00 mi14:12:172:54:258:4312:47
9:24
#19126
21M
21.00 mi14:22:193:04:278:4710:02
10:02
#19088
35K
21.75 mi14:29:073:11:158:486:48
9:05
#19075
23M
23.00 mi14:40:473:22:558:4911:40
9:19
#18997
24M
24.00 mi14:49:553:32:038:509:08
9:08
#18959
40K
24.85 mi14:57:383:39:468:517:43
9:02
#18844
25.2M
25.20 mi15:00:563:43:048:513:18
9:34
#18793
Finish
26.22 mi15:09:353:51:438:518:39
8:29
#18686
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi21684131691316919147(Top 67%)12115(Top 75%)12115(Top 508%)
10K6.21 mi3.10 mi20751+93312779+39012779+39019838(Top 70%)12401(Top 77%)12401(Top 520%)
15K9.32 mi3.11 mi20227+52412569+21012569+21019147(Top 67%)12115(Top 75%)12115(Top 508%)
20K12.43 mi3.11 mi19705+52212344+22512344+22517980(Top 63%)11603(Top 72%)11603(Top 486%)
Half13.11 mi0.68 mi19662+4312321+2312321+2318863(Top 66%)11988(Top 74%)11988(Top 502%)
25K15.53 mi2.42 mi19291+37112153+16812153+16817620(Top 62%)11372(Top 71%)11372(Top 477%)
30K18.64 mi3.11 mi19174+11712061+9212061+9218637(Top 66%)11676(Top 72%)11676(Top 489%)
20M20.00 mi1.36 mi19126+4812022+3912022+3918762(Top 66%)11569(Top 72%)11569(Top 485%)
21M21.00 mi1.00 mi19088+3811982+4011982+4018419(Top 65%)11351(Top 70%)11351(Top 476%)
35K21.75 mi0.75 mi19075+1311960+2211960+2218640(Top 66%)11318(Top 70%)11318(Top 474%)
23M23.00 mi1.25 mi18997+7811898+6211898+6217839(Top 63%)10888(Top 68%)10888(Top 456%)
24M24.00 mi1.00 mi18959+3811857+4111857+4118027(Top 63%)10938(Top 68%)10938(Top 458%)
40K24.85 mi0.85 mi18844+11511777+8011777+8016442(Top 58%)10125(Top 63%)10125(Top 424%)
25.2M25.20 mi0.35 mi18793+5111744+3311744+3314942(Top 53%)9399(Top 58%)9399(Top 394%)
Finish26.22 mi1.02 mi18686+10711684+6011684+6016136(Top 57%)10002(Top 62%)10002(Top 419%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 67%
×21stories
+97ft-345ft

Overall

19147

Males

12115

M45-49

12115

5K→10K

3.1 - 6.2 mi

Top 70%
×5stories
+79ft-138ft

Overall

19838

Males

12401

M45-49

12401

10K→15K

6.2 - 9.3 mi

Top 67%
×3stories
+67ft-78ft

Overall

19147

Males

12115

M45-49

12115

15K→20K

9.3 - 12.4 mi

Top 63%
×5stories
+106ft-86ft

Overall

17980

Males

11603

M45-49

11603

20K→Half

12.4 - 13.1 mi

Top 66%
×2stories
+19ft-37ft

Overall

18863

Males

11988

M45-49

11988

Half→25K

13.1 - 15.5 mi

Top 62%
×4stories
+66ft-88ft

Overall

17620

Males

11372

M45-49

11372

25K→30K

15.5 - 18.6 mi

Top 66%
×9stories
+181ft-148ft

Overall

18637

Males

11676

M45-49

11676

30K→20M

18.6 - 20.0 mi

Top 66%
×5stories
+64ft-50ft

Overall

18762

Males

11569

M45-49

11569

20M→21M

20.0 - 21.0 mi

Top 65%
×8stories
+106ft-24ft

Overall

18419

Males

11351

M45-49

11351

21M→35K

21.0 - 21.8 mi

Top 66%
×7stories
+17ft-86ft

Overall

18640

Males

11318

M45-49

11318

35K→23M

21.8 - 23.0 mi

Top 63%
×5stories
+23ft-63ft

Overall

17839

Males

10888

M45-49

10888

23M→24M

23.0 - 24.0 mi

Top 63%
×6stories
+12ft-82ft

Overall

18027

Males

10938

M45-49

10938

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

16442

Males

10125

M45-49

10125

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14942

Males

9399

M45-49

9399

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2stories
+22ft-21ft

Overall

16136

Males

10002

M45-49

10002

Passing Analysis

Category:
Athletes Passed
3630
Passed By
632
Net Change
+2998
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21684
5K → 10K97643+933#21684#20751
10K → 15K55228+524#20751#20227
15K → 20K54119+522#20227#19705
20K → Half5613+43#19705#19662
Half → 25K39625+371#19662#19291
25K → 30K278161+117#19291#19174
30K → 20M12880+48#19174#19126
20M → 21M10870+38#19126#19088
21M → 35K6855+13#19088#19075
35K → 23M13052+78#19075#18997
23M → 24M8446+38#18997#18959
24M → 40K13015+115#18959#18844
40K → 25.2M543+51#18844#18793
25.2M → Finish12922+107#18793#18686
TOTALS3630632+2998
📊

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