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BOSTON MARATHON 2025

David Olsen

Bib: 26022•M

NH

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 28%
Gender (Male)
#0 / 16105
Top 41%
Division (M18-39)
#0 / 5642
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
7:38/mi
23:42
↑ 97↓ 3451.5%
10K· 6.21 mi
7:26/mi
46:47
↑ 79↓ 1380.4%
15K· 9.32 mi
7:34/mi
1:10:17
↑ 67↓ 78
20K· 12.43 mi
7:30/mi
1:33:34
↑ 106↓ 860.1%
Half· 13.11 mi
7:26/mi
1:38:38
↑ 19↓ 370.5%
25K· 15.53 mi
7:30/mi
1:56:48
↑ 66↓ 880.2%
30K· 18.64 mi
7:26/mi
2:19:54
↑ 181↓ 1480.2%
20M
6:59/mi
2:29:23
↑ 64↓ 500.2%
21M
7:20/mi
2:36:43
↑ 106↓ 241.6%
35K· 21.75 mi
6:53/mi
2:41:52
↑ 17↓ 861.7%
23M
7:05/mi
2:50:44
↑ 23↓ 630.6%
24M
6:54/mi
2:57:38
↓ 821.3%
40K· 24.85 mi
6:55/mi
3:03:33
↓ 200.3%
25.2M
7:41/mi
3:06:12
↑ 13↓ 160.2%
Finish· 26.22 mi
6:44/mi
3:13:04
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:38:38
Pace7:31 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:34:26
Pace7:12 /mi
📊Negative Split: 4.3% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:38:5723:427:3823:42
7:38
-
10K
6.21 mi12:02:0246:477:3223:05
7:26
-0:12
15K
9.32 mi12:25:321:10:177:3223:30
7:34
+0:08
20K
12.43 mi12:48:491:33:347:3223:17
7:30
-0:04
Half
13.11 mi12:53:531:38:387:315:04
7:26
-0:04
25K
15.53 mi13:12:031:56:487:3118:10
7:30
+0:04
30K
18.64 mi13:35:092:19:547:3023:06
7:26
-0:04
20M
20.00 mi13:44:382:29:237:289:29
6:59
-0:27
21M
21.00 mi13:51:582:36:437:287:20
7:20
+0:21
35K
21.75 mi13:57:072:41:527:275:09
6:53
-0:27
23M
23.00 mi14:05:592:50:447:258:52
7:05
+0:12
24M
24.00 mi14:12:532:57:387:246:54
6:54
-0:11
40K
24.85 mi14:18:483:03:337:235:55
6:55
+0:01
25.2M
25.20 mi14:21:273:06:127:232:39
7:41
+0:46
Finish
26.22 mi14:28:193:13:047:226:52
6:44
-0:57

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

6:44 /mi

Average Pace

7:22 /mi

Slowest Pace

7:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

50:31

26% of race

Time at Steady Pace

2:22:33

74% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:22 /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 mi11:38:5723:427:3823:42
7:38
#13337
10K
6.21 mi12:02:0246:477:3223:05
7:26
#12371
15K
9.32 mi12:25:321:10:177:3223:30
7:34
#12329
20K
12.43 mi12:48:491:33:347:3223:17
7:30
#11882
Half
13.11 mi12:53:531:38:387:315:04
7:26
#11834
25K
15.53 mi13:12:031:56:487:3118:10
7:30
#11489
30K
18.64 mi13:35:092:19:547:3023:06
7:26
#10628
20M
20.00 mi13:44:382:29:237:289:29
6:59
#9948
21M
21.00 mi13:51:582:36:437:287:20
7:20
#9499
35K
21.75 mi13:57:072:41:527:275:09
6:53
#9263
23M
23.00 mi14:05:592:50:447:258:52
7:05
#8840
24M
24.00 mi14:12:532:57:387:246:54
6:54
#8531
40K
24.85 mi14:18:483:03:337:235:55
6:55
#8237
25.2M
25.20 mi14:21:273:06:127:232:39
7:41
#8161
Finish
26.22 mi14:28:193:13:047:226:52
6:44
#7923
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi133379785978512272(Top 43%)9180(Top 57%)9180(Top 163%)
10K6.21 mi3.10 mi12371+9669334+4519334+45111435(Top 40%)8869(Top 55%)8869(Top 157%)
15K9.32 mi3.11 mi12329+429276+589276+5812272(Top 43%)9180(Top 57%)9180(Top 163%)
20K12.43 mi3.11 mi11882+4479040+2369040+23610694(Top 38%)8348(Top 52%)8348(Top 148%)
Half13.11 mi0.68 mi11834+489004+369004+3611013(Top 39%)8529(Top 53%)8529(Top 151%)
25K15.53 mi2.42 mi11489+3458814+1908814+1909872(Top 35%)7789(Top 48%)7789(Top 138%)
30K18.64 mi3.11 mi10628+8618327+4878327+4877269(Top 26%)6134(Top 38%)6134(Top 109%)
20M20.00 mi1.36 mi9948+6807956+3717956+3714009(Top 14%)3677(Top 23%)3677(Top 65%)
21M21.00 mi1.00 mi9499+4497672+2847672+2843805(Top 13%)3468(Top 22%)3468(Top 61%)
35K21.75 mi0.75 mi9263+2367518+1547518+1544660(Top 16%)4138(Top 26%)4138(Top 73%)
23M23.00 mi1.25 mi8840+4237248+2707248+2704248(Top 15%)3777(Top 23%)3777(Top 67%)
24M24.00 mi1.00 mi8531+3097030+2187030+2184114(Top 14%)3631(Top 23%)3631(Top 64%)
40K24.85 mi0.85 mi8237+2946824+2066824+2063487(Top 12%)3106(Top 19%)3106(Top 55%)
25.2M25.20 mi0.35 mi8161+766766+586766+584296(Top 15%)3652(Top 23%)3652(Top 65%)
Finish26.22 mi1.02 mi7923+2386581+1856581+1854145(Top 15%)3548(Top 22%)3548(Top 63%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21story building
+97ft-345ft

Overall

12272

Males

9180

M18-39

9180

5K→10K

3.1 - 6.2 mi

Top 40%
×5story building
+79ft-138ft

Overall

11435

Males

8869

M18-39

8869

10K→15K

6.2 - 9.3 mi

Top 43%
×3story building
+67ft-78ft

Overall

12272

Males

9180

M18-39

9180

15K→20K

9.3 - 12.4 mi

Top 38%
×5story building
+106ft-86ft

Overall

10694

Males

8348

M18-39

8348

20K→Half

12.4 - 13.1 mi

Top 39%
×2story building
+19ft-37ft

Overall

11013

Males

8529

M18-39

8529

Half→25K

13.1 - 15.5 mi

Top 35%
×4story building
+66ft-88ft

Overall

9872

Males

7789

M18-39

7789

25K→30K

15.5 - 18.6 mi

Top 26%
×9story building
+181ft-148ft

Overall

7269

Males

6134

M18-39

6134

30K→20M

18.6 - 20.0 mi

Top 14%
×5story building
+64ft-50ft

Overall

4009

Males

3677

M18-39

3677

20M→21M

20.0 - 21.0 mi

Top 13%
×8story building
+106ft-24ft

Overall

3805

Males

3468

M18-39

3468

21M→35K

21.0 - 21.8 mi

Top 16%
×7story building
+17ft-86ft

Overall

4660

Males

4138

M18-39

4138

35K→23M

21.8 - 23.0 mi

Top 15%
×5story building
+23ft-63ft

Overall

4248

Males

3777

M18-39

3777

23M→24M

23.0 - 24.0 mi

Top 14%
×6story building
+12ft-82ft

Overall

4114

Males

3631

M18-39

3631

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3487

Males

3106

M18-39

3106

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1story
+13ft-16ft

Overall

4296

Males

3652

M18-39

3652

25.2M→Finish

25.2 - 26.2 mi

Top 15%
×2story building
+22ft-21ft

Overall

4145

Males

3548

M18-39

3548

Passing Analysis

Category:
Athletes Passed
5680*
Passed By
266
Net Change
+5414
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13337
5K → 10K100741+966#13337#12371
10K → 15K200158+42#12371#12329
15K → 20K47124+447#12329#11882
20K → Half6820+48#11882#11834
Half → 25K36116+345#11834#11489
25K → 30K8643+861#11489#10628
30K → 20M680*0+680#10628#9948
20M → 21M4490+449#9948#9499
21M → 35K2371+236#9499#9263
35K → 23M4230+423#9263#8840
23M → 24M3090+309#8840#8531
24M → 40K2940+294#8531#8237
40K → 25.2M760+76#8237#8161
25.2M → Finish2413+238#8161#7923
TOTALS5680*266+5414

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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