Boston Marathon logo
BOSTON MARATHON 2025

Adam Harper

MA

Bib: 28325 M

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
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
8:31/mi
26:29
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:43/mi
53:34
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:30/mi
1:20:00
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:36/mi
1:46:42
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:26/mi
1:52:27
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:45/mi
2:13:39
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:15/mi
2:42:24
↑ 181↓ 1480.2%
138 ft elev
20M
9:32/mi
2:55:21
↑ 64↓ 500.2%
148 ft elev
21M
10:15/mi
3:05:36
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
9:23/mi
3:12:37
↑ 17↓ 861.7%
156 ft elev
23M
9:36/mi
3:24:38
↑ 23↓ 630.6%
116 ft elev
24M
9:30/mi
3:34:08
↓ 821.3%
34 ft elev
40K· 24.85 mi
9:30/mi
3:42:15
↓ 200.3%
20 ft elev
25.2M
10:12/mi
3:45:46
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:29/mi
3:54:25
↑ 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
1:52:278:35 /mi⚡ faster
2nd Half
2:01:589:18 /mi+8.5%
Positive split — 8.5% 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
26:298:313.11 mi26:29
8:31
-
10K
53:348:373.10 mi27:05
8:43
+0:12
15K
1:20:008:353.11 mi26:26
8:30
-0:13
20K
1:46:428:353.11 mi26:42
8:36
+0:06
Half(13.11 mi)
1:52:278:350.68 mi5:45
8:26
-0:10
25K
2:13:398:362.42 mi21:12
8:45
+0:19
30K
2:42:248:433.11 mi28:45
9:15
+0:30
20M
2:55:218:461.36 mi12:57
9:32
+0:17
21M
3:05:368:501.00 mi10:15
10:15
+0:43
35K
3:12:378:510.75 mi7:01
9:23
-0:52
23M
3:24:388:541.25 mi12:01
9:36
+0:13
24M
3:34:088:551.00 mi9:30
9:30
-0:06
40K
3:42:158:570.85 mi8:07
9:30
0:00
25.2M
3:45:468:580.35 mi3:31
10:12
+0:42
Finish(26.22 mi)
3:54:258:571.02 mi8:39
8:29
-1:43
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

8:26 /mi

Average Pace

8:57 /mi

Slowest Pace

10:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:22:18

61% of race

Time at Steady Pace

1:06:20

28% of race

Time at Slower Pace

25:47

11% of race

Average Pace: 8:56 /mi

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

Heatmap

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

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi200201245212452193711221312213
10K3.10 mi20498-47812670-21812670-218209601290212902
15K3.11 mi20140+35812530+14012530+140193711221312213
20K3.11 mi19795+34512377+15312377+153188041195211952
Half(13.11 mi)0.68 mi19740+5512355+2212355+22187191192811928
25K2.42 mi19533+20712263+9212263+92186321180811808
30K3.11 mi19380+15312149+11412149+114189081179111791
20M1.36 mi19388-812131+1812131+18192961182311823
21M1.00 mi19373+1512099+3212099+32191831170511705
35K0.75 mi19400-2712098+112098+1198621190311903
23M1.25 mi19394+612056+4212056+42190651147111471
24M1.00 mi19414-2012045+1112045+11196201168011680
40K0.85 mi19370+4412010+3512010+35186751116011160
25.2M0.35 mi19334+3611985+2511985+25178581076010760
Finish(26.22 mi)1.02 mi19228+10611913+7211913+72161391000510005

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21story building
+97ft-345ft

Overall

19371

Males

12213

M18-39

12213

5K→10K

3.1 - 6.2 mi

Top 74%
×5story building
+79ft-138ft

Overall

20960

Males

12902

M18-39

12902

10K→15K

6.2 - 9.3 mi

Top 68%
×3story building
+67ft-78ft

Overall

19371

Males

12213

M18-39

12213

15K→20K

9.3 - 12.4 mi

Top 66%
×5story building
+106ft-86ft

Overall

18804

Males

11952

M18-39

11952

20K→Half

12.4 - 13.1 mi

Top 66%
×2story building
+19ft-37ft

Overall

18719

Males

11928

M18-39

11928

Half→25K

13.1 - 15.5 mi

Top 66%
×4story building
+66ft-88ft

Overall

18632

Males

11808

M18-39

11808

25K→30K

15.5 - 18.6 mi

Top 67%
×9story building
+181ft-148ft

Overall

18908

Males

11791

M18-39

11791

30K→20M

18.6 - 20.0 mi

Top 68%
×5story building
+64ft-50ft

Overall

19296

Males

11823

M18-39

11823

20M→21M

20.0 - 21.0 mi

Top 68%
×8story building
+106ft-24ft

Overall

19183

Males

11705

M18-39

11705

21M→35K

21.0 - 21.8 mi

Top 70%
×7story building
+17ft-86ft

Overall

19862

Males

11903

M18-39

11903

35K→23M

21.8 - 23.0 mi

Top 67%
×5story building
+23ft-63ft

Overall

19065

Males

11471

M18-39

11471

23M→24M

23.0 - 24.0 mi

Top 69%
×6story building
+12ft-82ft

Overall

19620

Males

11680

M18-39

11680

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

18675

Males

11160

M18-39

11160

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

17858

Males

10760

M18-39

10760

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2story building
+22ft-21ft

Overall

16139

Males

10005

M18-39

10005

Passing Analysis

Category:
Passed
2173
Passed By
1381
Net Change
+792
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20020
5K → 10K110588-478#20020#20498
10K → 15K40648+358#20498#20140
15K → 20K38439+345#20140#19795
20K → Half6914+55#19795#19740
Half → 25K26356+207#19740#19533
25K → 30K286133+153#19533#19380
30K → 20M99107-8#19380#19388
20M → 21M11095+15#19388#19373
21M → 35K4168-27#19373#19400
35K → 23M9993+6#19400#19394
23M → 24M5878-20#19394#19414
24M → 40K8238+44#19414#19370
40K → 25.2M4812+36#19370#19334
25.2M → Finish11812+106#19334#19228
TOTALS21731381+792

Passing Charts

Category:
Loading...

Passing Circle

Loading...

Position Flow

Loading...

Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing