Boston Marathon logo
BOSTON MARATHON 2025

Michael Marsh

Bib: 3922•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

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
20:55
Rank: #5745
Start → 5K
20:55 | 6:44/mi
10K· 6.21 mi
41:46
Rank: #5591 (+154)
5K → 10K
20:51 | 6:43/mi
15K· 9.32 mi
1:03:19
Rank: #6132 (-541)
10K → 15K
21:33 | 6:56/mi
20K· 12.43 mi
1:26:27
Rank: #7219 (-1087)
15K → 20K
23:08 | 7:27/mi
Half· 13.11 mi
1:31:39
Rank: #7439 (-220)
20K → Half
5:12 | 7:37/mi
25K· 15.53 mi
1:51:00
Rank: #8259 (-820)
Half → 25K
19:21 | 7:59/mi
30K· 18.64 mi
2:20:45
Rank: #11031 (-2772)
25K → 30K
29:45 | 9:35/mi
20M
2:33:39
Rank: #11748 (-717)
30K → 20M
12:54 | 9:30/mi
21M
2:43:41
Rank: #12260 (-512)
20M → 21M
10:02 | 10:02/mi
35K· 21.75 mi
2:50:58
Rank: #12721 (-461)
21M → 35K
7:17 | 9:44/mi
23M
3:03:58
Rank: #13504 (-783)
35K → 23M
13:00 | 10:23/mi
24M
3:14:34
Rank: #14255 (-751)
23M → 24M
10:36 | 10:36/mi
40K· 24.85 mi
3:24:58
Rank: #15080 (-825)
24M → 40K
10:24 | 12:10/mi
25.2M
3:29:31
Rank: #15406 (-326)
40K → 25.2M
4:33 | 13:12/mi
Finish· 26.22 mi
3:40:16
Rank: #15933 (-527)
25.2M → Finish
10:45 | 10:33/mi

Course Map & Elevation

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:39
Pace6:59 /mi
2nd Half
Distance13.11 mi
Time2:08:37
Pace9:49 /mi
📊Positive Split: 40.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:0820:556:4420:55
6:44
-
10K
6.21 mi10:43:5941:466:4320:51
6:43
-0:01
15K
9.32 mi11:05:321:03:196:4821:33
6:56
+0:13
20K
12.43 mi11:28:401:26:276:5723:08
7:27
+0:31
Half
13.11 mi11:33:521:31:396:595:12
7:37
+0:10
25K
15.53 mi11:53:131:51:007:0919:21
7:59
+0:22
30K
18.64 mi12:22:582:20:457:3329:45
9:35
+1:36
20M
20.00 mi12:35:522:33:397:4112:54
9:30
-0:05
21M
21.00 mi12:45:542:43:417:4810:02
10:02
+0:32
35K
21.75 mi12:53:112:50:587:527:17
9:44
-0:18
23M
23.00 mi13:06:113:03:588:0013:00
10:23
+0:39
24M
24.00 mi13:16:473:14:348:0610:36
10:36
+0:13
40K
24.85 mi13:27:113:24:588:1510:24
12:10
+1:34
25.2M
25.20 mi13:31:443:29:318:194:33
13:12
+1:02
Finish
26.22 mi13:42:293:40:168:2410:45
10:33
-2:39

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

6:43 /mi

Average Pace

8:24 /mi

Slowest Pace

13:12 /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

1:51:00

50% of race

Time at Steady Pace

1:12:58

33% of race

Time at Slower Pace

36:18

16% of race

Average Pace: 8:24 /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 mi10:23:0820:556:4420:55
6:44
#5745
10K
6.21 mi10:43:5941:466:4320:51
6:43
#5591
15K
9.32 mi11:05:321:03:196:4821:33
6:56
#6132
20K
12.43 mi11:28:401:26:276:5723:08
7:27
#7219
Half
13.11 mi11:33:521:31:396:595:12
7:37
#7439
25K
15.53 mi11:53:131:51:007:0919:21
7:59
#8259
30K
18.64 mi12:22:582:20:457:3329:45
9:35
#11031
20M
20.00 mi12:35:522:33:397:4112:54
9:30
#11748
21M
21.00 mi12:45:542:43:417:4810:02
10:02
#12260
35K
21.75 mi12:53:112:50:587:527:17
9:44
#12721
23M
23.00 mi13:06:113:03:588:0013:00
10:23
#13504
24M
24.00 mi13:16:473:14:348:0610:36
10:36
#14255
40K
24.85 mi13:27:113:24:588:1510:24
12:10
#15080
25.2M
25.20 mi13:31:443:29:318:194:33
13:12
#15406
Finish
26.22 mi13:42:293:40:168:2410:45
10:33
#15933
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5745530753077214(Top 25%)6413(Top 40%)6413(Top 114%)
10K6.21 mi3.10 mi5591+1545169+1385169+1385455(Top 19%)5039(Top 31%)5039(Top 89%)
15K9.32 mi3.11 mi6132-5415615-4465615-4467214(Top 25%)6413(Top 40%)6413(Top 114%)
20K12.43 mi3.11 mi7219-10876433-8186433-81810303(Top 36%)8177(Top 51%)8177(Top 145%)
Half13.11 mi0.68 mi7439-2206588-1556588-15512750(Top 45%)9373(Top 58%)9373(Top 166%)
25K15.53 mi2.42 mi8259-8207092-5047092-50413734(Top 48%)9627(Top 60%)9627(Top 171%)
30K18.64 mi3.11 mi11031-27728518-14268518-142620235(Top 71%)12398(Top 77%)12398(Top 220%)
20M20.00 mi1.36 mi11748-7178824-3068824-30619120(Top 67%)11737(Top 73%)11737(Top 208%)
21M21.00 mi1.00 mi12260-5129020-1969020-19618410(Top 65%)11342(Top 70%)11342(Top 201%)
35K21.75 mi0.75 mi12721-4619206-1869206-18621091(Top 74%)12479(Top 77%)12479(Top 221%)
23M23.00 mi1.25 mi13504-7839511-3059511-30521675(Top 76%)12710(Top 79%)12710(Top 225%)
24M24.00 mi1.00 mi14255-7519828-3179828-31723056(Top 81%)13327(Top 83%)13327(Top 236%)
40K24.85 mi0.85 mi15080-82510154-32610154-32625172(Top 89%)14350(Top 89%)14350(Top 254%)
25.2M25.20 mi0.35 mi15406-32610280-12610280-12625276(Top 89%)14376(Top 89%)14376(Top 255%)
Finish26.22 mi1.02 mi15933-52710497-21710497-21724376(Top 86%)13962(Top 87%)13962(Top 247%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 25%
×21stories
+97ft-345ft

Overall

7214

Males

6413

M18-39

6413

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

5455

Males

5039

M18-39

5039

10K→15K

6.2 - 9.3 mi

Top 25%
×3stories
+67ft-78ft

Overall

7214

Males

6413

M18-39

6413

15K→20K

9.3 - 12.4 mi

Top 36%
×5stories
+106ft-86ft

Overall

10303

Males

8177

M18-39

8177

20K→Half

12.4 - 13.1 mi

Top 45%
×2stories
+19ft-37ft

Overall

12750

Males

9373

M18-39

9373

Half→25K

13.1 - 15.5 mi

Top 48%
×4stories
+66ft-88ft

Overall

13734

Males

9627

M18-39

9627

25K→30K

15.5 - 18.6 mi

Top 71%
×9stories
+181ft-148ft

Overall

20235

Males

12398

M18-39

12398

30K→20M

18.6 - 20.0 mi

Top 67%
×5stories
+64ft-50ft

Overall

19120

Males

11737

M18-39

11737

20M→21M

20.0 - 21.0 mi

Top 65%
×8stories
+106ft-24ft

Overall

18410

Males

11342

M18-39

11342

21M→35K

21.0 - 21.8 mi

Top 74%
×7stories
+17ft-86ft

Overall

21091

Males

12479

M18-39

12479

35K→23M

21.8 - 23.0 mi

Top 76%
×5stories
+23ft-63ft

Overall

21675

Males

12710

M18-39

12710

23M→24M

23.0 - 24.0 mi

Top 81%
×6stories
+12ft-82ft

Overall

23056

Males

13327

M18-39

13327

24M→40K

24.0 - 24.9 mi

Top 89%
×1story
+6ft-20ft

Overall

25172

Males

14350

M18-39

14350

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1story
+13ft-16ft

Overall

25276

Males

14376

M18-39

14376

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2stories
+22ft-21ft

Overall

24376

Males

13962

M18-39

13962

Passing Analysis

Category:
Athletes Passed
467
Passed By
10653
Net Change
-10188
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5745
5K → 10K278124+154#5745#5591
10K → 15K45586-541#5591#6132
15K → 20K101097-1087#6132#7219
20K → Half1221-220#7219#7439
Half → 25K15835-820#7439#8259
25K → 30K82778-2772#8259#11031
30K → 20M26743-717#11031#11748
20M → 21M26538-512#11748#12260
21M → 35K15476-461#12260#12721
35K → 23M15798-783#12721#13504
23M → 24M11762-751#13504#14255
24M → 40K6831-825#14255#15080
40K → 25.2M2328-326#15080#15406
25.2M → Finish9536-527#15406#15933
TOTALS46710653-10188
📊

Passing Visuals

Category:

📈Position Graph

Loading...

🎨Heatmap Timeline

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing