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BOSTON MARATHON 2025

Josh Shelton

Bib: 4366•M

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Overall
#0 / 28404
Top 8%
Gender (Male)
#0 / 16105
Top 14%
Age Group (M18-39)
#0 / 5642
Top 32%
Race Day Weather
50°/40°F
broken clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
18:54
Rank: #1356
Start → 5K
18:54 | 6:05/mi
10K· 6.21 mi
37:59
Rank: #1479 (-123)
5K → 10K
19:05 | 6:09/mi
15K· 9.32 mi
57:11
Rank: #1558 (-79)
10K → 15K
19:12 | 6:11/mi
20K· 12.43 mi
1:16:41
Rank: #1630 (-72)
15K → 20K
19:30 | 6:17/mi
Half· 13.11 mi
1:20:57
Rank: #1651 (-21)
20K → Half
4:16 | 6:15/mi
25K· 15.53 mi
1:36:18
Rank: #1680 (-29)
Half → 25K
15:21 | 6:20/mi
30K· 18.64 mi
1:56:50
Rank: #1797 (-117)
25K → 30K
20:32 | 6:37/mi
20M
2:06:04
Rank: #1850 (-53)
30K → 20M
9:14 | 6:48/mi
21M
2:13:24
Rank: #1926 (-76)
20M → 21M
7:20 | 7:20/mi
35K· 21.75 mi
2:18:16
Rank: #1914 (+12)
21M → 35K
4:52 | 6:30/mi
23M
2:26:59
Rank: #1981 (-67)
35K → 23M
8:43 | 6:58/mi
24M
2:33:52
Rank: #2013 (-32)
23M → 24M
6:53 | 6:53/mi
40K· 24.85 mi
2:40:04
Rank: #2097 (-84)
24M → 40K
6:12 | 7:15/mi
25.2M
2:42:54
Rank: #2159 (-62)
40K → 25.2M
2:50 | 8:13/mi
Finish· 26.22 mi
2:50:31
Rank: #2357 (-198)
25.2M → Finish
7:37 | 7:28/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.11 mi
Time1:20:57
Pace6:10 /mi
2nd Half
Distance13.11 mi
Time1:29:34
Pace6:50 /mi
📊Positive Split: 10.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:2818:546:0518:54
6:05
-
10K
6.21 mi10:40:3337:596:0719:05
6:09
+0:04
15K
9.32 mi10:59:4557:116:0819:12
6:11
+0:02
20K
12.43 mi11:19:151:16:416:1019:30
6:17
+0:06
Half
13.11 mi11:23:311:20:576:104:16
6:15
-0:02
25K
15.53 mi11:38:521:36:186:1215:21
6:20
+0:05
30K
18.64 mi11:59:241:56:506:1620:32
6:37
+0:17
20M
20.00 mi12:08:382:06:046:189:14
6:48
+0:11
21M
21.00 mi12:15:582:13:246:217:20
7:20
+0:32
35K
21.75 mi12:20:502:18:166:214:52
6:30
-0:50
23M
23.00 mi12:29:332:26:596:238:43
6:58
+0:28
24M
24.00 mi12:36:262:33:526:256:53
6:53
-0:05
40K
24.85 mi12:42:382:40:046:266:12
7:15
+0:22
25.2M
25.20 mi12:45:282:42:546:282:50
8:13
+0:58
Finish
26.22 mi12:53:052:50:316:307:37
7:28
-0:45

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

6:05 /mi

Average Pace

6:30 /mi

Slowest Pace

8:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

1:20:57

47% of race

Time at Steady Pace

56:52

33% of race

Time at Slower Pace

32:42

19% of race

Average Pace: 6:30 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:21:2818:546:0518:54
6:05
#1356
10K
6.21 mi10:40:3337:596:0719:05
6:09
#1479
15K
9.32 mi10:59:4557:116:0819:12
6:11
#1558
20K
12.43 mi11:19:151:16:416:1019:30
6:17
#1630
Half
13.11 mi11:23:311:20:576:104:16
6:15
#1651
25K
15.53 mi11:38:521:36:186:1215:21
6:20
#1680
30K
18.64 mi11:59:241:56:506:1620:32
6:37
#1797
20M
20.00 mi12:08:382:06:046:189:14
6:48
#1850
21M
21.00 mi12:15:582:13:246:217:20
7:20
#1926
35K
21.75 mi12:20:502:18:166:214:52
6:30
#1914
23M
23.00 mi12:29:332:26:596:238:43
6:58
#1981
24M
24.00 mi12:36:262:33:526:256:53
6:53
#2013
40K
24.85 mi12:42:382:40:046:266:12
7:15
#2097
25.2M
25.20 mi12:45:282:42:546:282:50
8:13
#2159
Finish
26.22 mi12:53:052:50:316:307:37
7:28
#2357
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1356129112911750(Top 6%)1663(Top 10%)1663(Top 29%)
10K6.21 mi3.10 mi1479-1231407-1161407-1161647(Top 6%)1568(Top 10%)1568(Top 28%)
15K9.32 mi3.11 mi1558-791482-751482-751750(Top 6%)1663(Top 10%)1663(Top 29%)
20K12.43 mi3.11 mi1630-721547-651547-651920(Top 7%)1830(Top 11%)1830(Top 32%)
Half13.11 mi0.68 mi1651-211567-201567-202237(Top 8%)2138(Top 13%)2138(Top 38%)
25K15.53 mi2.42 mi1680-291597-301597-302022(Top 7%)1926(Top 12%)1926(Top 34%)
30K18.64 mi3.11 mi1797-1171712-1151712-1152442(Top 9%)2312(Top 14%)2312(Top 41%)
20M20.00 mi1.36 mi1850-531759-471759-472873(Top 10%)2682(Top 17%)2682(Top 48%)
21M21.00 mi1.00 mi1926-761830-711830-713742(Top 13%)3405(Top 21%)3405(Top 60%)
35K21.75 mi0.75 mi1914+121818+121818+122460(Top 9%)2293(Top 14%)2293(Top 41%)
23M23.00 mi1.25 mi1981-671881-631881-633508(Top 12%)3178(Top 20%)3178(Top 56%)
24M24.00 mi1.00 mi2013-321910-291910-293952(Top 14%)3491(Top 22%)3491(Top 62%)
40K24.85 mi0.85 mi2097-841991-811991-815296(Top 19%)4397(Top 27%)4397(Top 78%)
25.2M25.20 mi0.35 mi2159-622050-592050-597025(Top 25%)5315(Top 33%)5315(Top 94%)
Finish26.22 mi1.02 mi2357-1982234-1842234-1848963(Top 32%)6403(Top 40%)6403(Top 113%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21stories
+97ft-345ft

Overall

1750

Males

1663

M18-39

1663

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1647

Males

1568

M18-39

1568

10K→15K

6.2 - 9.3 mi

Top 6%
×3stories
+67ft-78ft

Overall

1750

Males

1663

M18-39

1663

15K→20K

9.3 - 12.4 mi

Top 7%
×5stories
+106ft-86ft

Overall

1920

Males

1830

M18-39

1830

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2237

Males

2138

M18-39

2138

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

2022

Males

1926

M18-39

1926

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2442

Males

2312

M18-39

2312

30K→20M

18.6 - 20.0 mi

Top 10%
×5stories
+64ft-50ft

Overall

2873

Males

2682

M18-39

2682

20M→21M

20.0 - 21.0 mi

Top 13%
×8stories
+106ft-24ft

Overall

3742

Males

3405

M18-39

3405

21M→35K

21.0 - 21.8 mi

Top 9%
×7stories
+17ft-86ft

Overall

2460

Males

2293

M18-39

2293

35K→23M

21.8 - 23.0 mi

Top 12%
×5stories
+23ft-63ft

Overall

3508

Males

3178

M18-39

3178

23M→24M

23.0 - 24.0 mi

Top 14%
×6stories
+12ft-82ft

Overall

3952

Males

3491

M18-39

3491

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

5296

Males

4397

M18-39

4397

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1story
+13ft-16ft

Overall

7025

Males

5315

M18-39

5315

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2stories
+22ft-21ft

Overall

8963

Males

6403

M18-39

6403

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
306
Passed By
1307
Net Change
-1001
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1356
5K → 10K29152-123#1356#1479
10K → 15K24103-79#1479#1558
15K → 20K2698-72#1558#1630
20K → Half829-21#1630#1651
Half → 25K3564-29#1651#1680
25K → 30K37154-117#1680#1797
30K → 20M2477-53#1797#1850
20M → 21M1591-76#1850#1926
21M → 35K3321+12#1926#1914
35K → 23M2592-67#1914#1981
23M → 24M3062-32#1981#2013
24M → 40K1599-84#2013#2097
40K → 25.2M466-62#2097#2159
25.2M → Finish1199-198#2159#2357
TOTALS3061307-1001
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing