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BOSTON MARATHON 2025

Stephen Harmon

Bib: 5844•M

CO

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0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
30:21
Rank: #25012
Start → 5K
30:21 | 9:46/mi
10K· 6.21 mi
1:05:21
Rank: #26514 (-1502)
5K → 10K
35:00 | 11:16/mi
15K· 9.32 mi
1:42:07
Rank: #27009 (-495)
10K → 15K
36:46 | 11:50/mi
20K· 12.43 mi
2:18:24
Rank: #26975 (+34)
15K → 20K
36:17 | 11:41/mi
Half· 13.11 mi
2:26:34
Rank: #26997 (-22)
20K → Half
8:10 | 11:58/mi
25K· 15.53 mi
2:54:20
Rank: #26796 (+201)
Half → 25K
27:46 | 11:27/mi
30K· 18.64 mi
3:32:41
Rank: #26662 (+134)
25K → 30K
38:21 | 12:21/mi
20M
3:52:19
Rank: #26790 (-128)
30K → 20M
19:38 | 14:27/mi
21M
4:00:42
Rank: #26425 (+365)
20M → 21M
8:23 | 8:23/mi
35K· 21.75 mi
4:11:28
Rank: #26518 (-93)
21M → 35K
10:46 | 14:23/mi
23M
4:29:35
Rank: #26628 (-110)
35K → 23M
18:07 | 14:28/mi
24M
4:37:52
Rank: #26396 (+232)
23M → 24M
8:17 | 8:17/mi
40K· 24.85 mi
4:45:15
Rank: #26194 (+202)
24M → 40K
7:23 | 8:38/mi
25.2M
4:48:35
Rank: #26125 (+69)
40K → 25.2M
3:20 | 9:40/mi
Finish· 26.22 mi
4:57:23
Rank: #25993 (+132)
25.2M → Finish
8:48 | 8:38/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:26:34
Pace11:11 /mi
2nd Half
Distance13.11 mi
Time2:30:49
Pace11:30 /mi
📊Positive Split: 2.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:39:2630:219:4630:21
9:46
-
10K
6.21 mi11:14:261:05:2110:3135:00
11:16
+1:30
15K
9.32 mi11:51:121:42:0710:5736:46
11:50
+0:34
20K
12.43 mi12:27:292:18:2411:0836:17
11:41
-0:09
Half
13.11 mi12:35:392:26:3411:118:10
11:58
+0:17
25K
15.53 mi13:03:252:54:2011:1327:46
11:27
-0:31
30K
18.64 mi13:41:463:32:4111:2538:21
12:21
+0:54
20M
20.00 mi14:01:243:52:1911:3719:38
14:27
+2:06
21M
21.00 mi14:09:474:00:4211:288:23
8:23
-6:04
35K
21.75 mi14:20:334:11:2811:3410:46
14:23
+6:00
23M
23.00 mi14:38:404:29:3511:4318:07
14:28
+0:05
24M
24.00 mi14:46:574:37:5211:358:17
8:17
-6:11
40K
24.85 mi14:54:204:45:1511:297:23
8:38
+0:21
25.2M
25.20 mi14:57:404:48:3511:273:20
9:40
+1:02
Finish
26.22 mi15:06:284:57:2311:218:48
8:38
-1:02

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

8:17 /mi

Average Pace

11:21 /mi

Slowest Pace

14:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:06:32

22% of race

Time at Steady Pace

3:02:20

61% of race

Time at Slower Pace

48:31

16% of race

Average Pace: 11:21 /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 mi10:39:2630:219:4630:21
9:46
#25012
10K
6.21 mi11:14:261:05:2110:3135:00
11:16
#26514
15K
9.32 mi11:51:121:42:0710:5736:46
11:50
#27009
20K
12.43 mi12:27:292:18:2411:0836:17
11:41
#26975
Half
13.11 mi12:35:392:26:3411:118:10
11:58
#26997
25K
15.53 mi13:03:252:54:2011:1327:46
11:27
#26796
30K
18.64 mi13:41:463:32:4111:2538:21
12:21
#26662
20M
20.00 mi14:01:243:52:1911:3719:38
14:27
#26790
21M
21.00 mi14:09:474:00:4211:288:23
8:23
#26425
35K
21.75 mi14:20:334:11:2811:3410:46
14:23
#26518
23M
23.00 mi14:38:404:29:3511:4318:07
14:28
#26628
24M
24.00 mi14:46:574:37:5211:358:17
8:17
#26396
40K
24.85 mi14:54:204:45:1511:297:23
8:38
#26194
25.2M
25.20 mi14:57:404:48:3511:273:20
9:40
#26125
Finish
26.22 mi15:06:284:57:2311:218:48
8:38
#25993
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi25012147321473227517(Top 97%)15753(Top 98%)15753(Top 279%)
10K6.21 mi3.10 mi26514-150215387-65515387-65527347(Top 96%)15703(Top 98%)15703(Top 278%)
15K9.32 mi3.11 mi27009-49515578-19115578-19127517(Top 97%)15753(Top 98%)15753(Top 279%)
20K12.43 mi3.11 mi26975+3415555+2315555+2326817(Top 94%)15469(Top 96%)15469(Top 274%)
Half13.11 mi0.68 mi26997-2215559-415559-427444(Top 97%)15695(Top 97%)15695(Top 278%)
25K15.53 mi2.42 mi26796+20115470+8915470+8925799(Top 91%)14984(Top 93%)14984(Top 266%)
30K18.64 mi3.11 mi26662+13415396+7415396+7425993(Top 92%)14989(Top 93%)14989(Top 266%)
20M20.00 mi1.36 mi26790-12815438-4215438-4227607(Top 97%)15663(Top 97%)15663(Top 278%)
21M21.00 mi1.00 mi26425+36515272+16615272+1669754(Top 34%)7246(Top 45%)7246(Top 128%)
35K21.75 mi0.75 mi26518-9315305-3315305-3327877(Top 98%)15768(Top 98%)15768(Top 279%)
23M23.00 mi1.25 mi26628-11015337-3215337-3227633(Top 97%)15642(Top 97%)15642(Top 277%)
24M24.00 mi1.00 mi26396+23215235+10215235+10213143(Top 46%)8727(Top 54%)8727(Top 155%)
40K24.85 mi0.85 mi26194+20215129+10615129+10614269(Top 50%)9134(Top 57%)9134(Top 162%)
25.2M25.20 mi0.35 mi26125+6915102+2715102+2715440(Top 54%)9634(Top 60%)9634(Top 171%)
Finish26.22 mi1.02 mi25993+13215036+6615036+6617085(Top 60%)10450(Top 65%)10450(Top 185%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 97%
×21stories
+97ft-345ft

Overall

27517

Males

15753

M18-39

15753

5K→10K

3.1 - 6.2 mi

Top 96%
×5stories
+79ft-138ft

Overall

27347

Males

15703

M18-39

15703

10K→15K

6.2 - 9.3 mi

Top 97%
×3stories
+67ft-78ft

Overall

27517

Males

15753

M18-39

15753

15K→20K

9.3 - 12.4 mi

Top 94%
×5stories
+106ft-86ft

Overall

26817

Males

15469

M18-39

15469

20K→Half

12.4 - 13.1 mi

Top 97%
×2stories
+19ft-37ft

Overall

27444

Males

15695

M18-39

15695

Half→25K

13.1 - 15.5 mi

Top 91%
×4stories
+66ft-88ft

Overall

25799

Males

14984

M18-39

14984

25K→30K

15.5 - 18.6 mi

Top 92%
×9stories
+181ft-148ft

Overall

25993

Males

14989

M18-39

14989

30K→20M

18.6 - 20.0 mi

Top 97%
×5stories
+64ft-50ft

Overall

27607

Males

15663

M18-39

15663

20M→21M

20.0 - 21.0 mi

Top 34%
×8stories
+106ft-24ft

Overall

9754

Males

7246

M18-39

7246

21M→35K

21.0 - 21.8 mi

Top 98%
×7stories
+17ft-86ft

Overall

27877

Males

15768

M18-39

15768

35K→23M

21.8 - 23.0 mi

Top 97%
×5stories
+23ft-63ft

Overall

27633

Males

15642

M18-39

15642

23M→24M

23.0 - 24.0 mi

Top 46%
×6stories
+12ft-82ft

Overall

13143

Males

8727

M18-39

8727

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

14269

Males

9134

M18-39

9134

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

15440

Males

9634

M18-39

9634

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2stories
+22ft-21ft

Overall

17085

Males

10450

M18-39

10450

Passing Analysis

Category:
Athletes Passed
1563
Passed By
2544
Net Change
-981
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25012
5K → 10K111513-1502#25012#26514
10K → 15K19514-495#26514#27009
15K → 20K12086+34#27009#26975
20K → Half1638-22#26975#26997
Half → 25K2065+201#26997#26796
25K → 30K16026+134#26796#26662
30K → 20M4132-128#26662#26790
20M → 21M3650+365#26790#26425
21M → 35K8101-93#26425#26518
35K → 23M19129-110#26518#26628
23M → 24M2320+232#26628#26396
24M → 40K2020+202#26396#26194
40K → 25.2M690+69#26194#26125
25.2M → Finish1320+132#26125#25993
TOTALS15632544-981
📊

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