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BOSTON MARATHON 2025

Scott Shellabarger

OH

Bib: 18824 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M55-59)
#0 / 1648
Race Day Weather
50°/40°F
broken clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:26/mi
26:11
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:17/mi
51:54
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:19/mi
1:17:45
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
10:01/mi
1:48:51
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
10:30/mi
1:56:01
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
11:47/mi
2:24:36
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
12:12/mi
3:02:30
↑ 181↓ 1480.2%
138 ft elev
20M
12:44/mi
3:19:48
↑ 64↓ 500.2%
148 ft elev
21M
15:49/mi
3:35:37
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
15:28/mi
3:47:11
↑ 17↓ 861.7%
156 ft elev
23M
14:58/mi
4:05:55
↑ 23↓ 630.6%
116 ft elev
24M
14:52/mi
4:20:47
↓ 821.3%
34 ft elev
40K· 24.85 mi
15:04/mi
4:33:40
↓ 200.3%
20 ft elev
25.2M
16:06/mi
4:39:13
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
14:11/mi
4:53:40
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:56:018:51 /mi⚡ faster
2nd Half
2:57:3913:33 /mi+53.1%
Positive split — 53.1% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
26:118:263.11 mi26:11
8:26
-
10K
51:548:213.10 mi25:43
8:17
-0:09
15K
1:17:458:213.11 mi25:51
8:19
+0:02
20K
1:48:518:463.11 mi31:06
10:01
+1:42
Half(13.11 mi)
1:56:018:510.68 mi7:10
10:30
+0:29
25K
2:24:369:192.42 mi28:35
11:47
+1:17
30K
3:02:309:473.11 mi37:54
12:12
+0:25
20M
3:19:489:591.36 mi17:18
12:44
+0:32
21M
3:35:3710:161.00 mi15:49
15:49
+3:05
35K
3:47:1110:270.75 mi11:34
15:28
-0:21
23M
4:05:5510:421.25 mi18:44
14:58
-0:30
24M
4:20:4710:521.00 mi14:52
14:52
-0:06
40K
4:33:4011:010.85 mi12:53
15:04
+0:12
25.2M
4:39:1311:050.35 mi5:33
16:06
+1:02
Finish(26.22 mi)
4:53:4011:131.02 mi14:27
14:11
-1:55
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

8:17 /mi

Average Pace

11:13 /mi

Slowest Pace

16:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

1:56:01

40% of race

Time at Steady Pace

1:23:47

29% of race

Time at Slower Pace

1:33:52

32% of race

Average Pace: 11:12 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi194571223112231181891170911709
10K3.10 mi18940+51712017+21412017+214184041181211812
15K3.11 mi18668+27211903+11411903+114181891170911709
20K3.11 mi20715-204712778-87512778-875242371432714327
Half(13.11 mi)0.68 mi21174-45912991-21312991-213258001501515015
25K2.42 mi22819-164513713-72213713-722261961515815158
30K3.11 mi23635-81614043-33014043-330258231490714907
20M1.36 mi23986-35114182-13914182-139261751500515005
21M1.00 mi24384-39814350-16814350-168277291573715737
35K0.75 mi24718-33414497-14714497-147281511594315943
23M1.25 mi25067-34914633-13614633-136278961578015780
24M1.00 mi25279-21214719-8614719-86280191584615846
40K0.85 mi25453-17414790-7114790-71277901571315713
25.2M0.35 mi25541-8814819-2914819-29277571567915679
Finish(26.22 mi)1.02 mi25779-23814929-11014929-110280991590515905

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21story building
+97ft-345ft

Overall

18189

Males

11709

M55-59

11709

5K→10K

3.1 - 6.2 mi

Top 65%
×5story building
+79ft-138ft

Overall

18404

Males

11812

M55-59

11812

10K→15K

6.2 - 9.3 mi

Top 64%
×3story building
+67ft-78ft

Overall

18189

Males

11709

M55-59

11709

15K→20K

9.3 - 12.4 mi

Top 85%
×5story building
+106ft-86ft

Overall

24237

Males

14327

M55-59

14327

20K→Half

12.4 - 13.1 mi

Top 91%
×2story building
+19ft-37ft

Overall

25800

Males

15015

M55-59

15015

Half→25K

13.1 - 15.5 mi

Top 92%
×4story building
+66ft-88ft

Overall

26196

Males

15158

M55-59

15158

25K→30K

15.5 - 18.6 mi

Top 91%
×9story building
+181ft-148ft

Overall

25823

Males

14907

M55-59

14907

30K→20M

18.6 - 20.0 mi

Top 92%
×5story building
+64ft-50ft

Overall

26175

Males

15005

M55-59

15005

20M→21M

20.0 - 21.0 mi

Top 98%
×8story building
+106ft-24ft

Overall

27729

Males

15737

M55-59

15737

21M→35K

21.0 - 21.8 mi

Top 99%
×7story building
+17ft-86ft

Overall

28151

Males

15943

M55-59

15943

35K→23M

21.8 - 23.0 mi

Top 98%
×5story building
+23ft-63ft

Overall

27896

Males

15780

M55-59

15780

23M→24M

23.0 - 24.0 mi

Top 99%
×6story building
+12ft-82ft

Overall

28019

Males

15846

M55-59

15846

24M→40K

24.0 - 24.9 mi

Top 98%
×1story
+6ft-20ft

Overall

27790

Males

15713

M55-59

15713

40K→25.2M

24.9 - 25.2 mi

Top 98%
×1story
+13ft-16ft

Overall

27757

Males

15679

M55-59

15679

25.2M→Finish

25.2 - 26.2 mi

Top 99%
×2story building
+22ft-21ft

Overall

28099

Males

15905

M55-59

15905

Passing Analysis

Category:
Passed
1049
Passed By
7371
Net Change
-6322
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19457
5K → 10K61396+517#19457#18940
10K → 15K34977+272#18940#18668
15K → 20K132060-2047#18668#20715
20K → Half2461-459#20715#21174
Half → 25K41649-1645#21174#22819
25K → 30K24840-816#22819#23635
30K → 20M19370-351#23635#23986
20M → 21M5403-398#23986#24384
21M → 35K1335-334#24384#24718
35K → 23M3352-349#24718#25067
23M → 24M8220-212#25067#25279
24M → 40K6180-174#25279#25453
40K → 25.2M189-88#25453#25541
25.2M → Finish1239-238#25541#25779
TOTALS10497371-6322

Passing Charts

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