Boston Marathon logo
BOSTON MARATHON 2025

Sam Muto

Bib: 31644•M

MA

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

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:07/mi
28:21
↑ 97↓ 3451.5%
10K· 6.21 mi
8:56/mi
56:06
↑ 79↓ 1380.4%
15K· 9.32 mi
8:30/mi
1:22:32
↑ 67↓ 78
20K· 12.43 mi
8:53/mi
1:50:09
↑ 106↓ 860.1%
Half· 13.11 mi
8:32/mi
1:55:58
↑ 19↓ 370.5%
25K· 15.53 mi
8:58/mi
2:17:43
↑ 66↓ 880.2%
30K· 18.64 mi
9:31/mi
2:47:17
↑ 181↓ 1480.2%
20M
9:19/mi
2:59:56
↑ 64↓ 500.2%
21M
9:57/mi
3:09:53
↑ 106↓ 241.6%
35K· 21.75 mi
9:03/mi
3:16:39
↑ 17↓ 861.7%
23M
9:09/mi
3:28:07
↑ 23↓ 630.6%
24M
8:50/mi
3:36:57
↓ 821.3%
40K· 24.85 mi
9:06/mi
3:44:44
↓ 200.3%
25.2M
9:25/mi
3:47:59
↑ 13↓ 160.2%
Finish· 26.22 mi
8:01/mi
3:56:09
↑ 22↓ 21

The Course

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
Time1:55:58
Pace8:51 /mi
2nd Half
Distance13.11 mi
Time2:00:11
Pace9:10 /mi
📊Positive Split: 3.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:2128:219:0728:21
9:07
-
10K
6.21 mi12:19:0656:069:0227:45
8:56
-0:11
15K
9.32 mi12:45:321:22:328:5126:26
8:30
-0:26
20K
12.43 mi13:13:091:50:098:5227:37
8:53
+0:23
Half
13.11 mi13:18:581:55:588:515:49
8:32
-0:21
25K
15.53 mi13:40:432:17:438:5221:45
8:58
+0:26
30K
18.64 mi14:10:172:47:178:5829:34
9:31
+0:33
20M
20.00 mi14:22:562:59:569:0012:39
9:19
-0:12
21M
21.00 mi14:32:533:09:539:039:57
9:57
+0:38
35K
21.75 mi14:39:393:16:399:036:46
9:03
-0:54
23M
23.00 mi14:51:073:28:079:0311:28
9:09
+0:06
24M
24.00 mi14:59:573:36:579:028:50
8:50
-0:19
40K
24.85 mi15:07:443:44:449:037:47
9:06
+0:16
25.2M
25.20 mi15:10:593:47:599:033:15
9:25
+0:19
Finish
26.22 mi15:19:093:56:099:018:10
8:01
-1:24

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

8:01 /mi

Average Pace

9:01 /mi

Slowest Pace

9:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

40:25

17% of race

Time at Steady Pace

2:20:19

59% of race

Time at Slower Pace

55:25

23% of race

Average Pace: 9:00 /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 mi11:51:2128:219:0728:21
9:07
#22931
10K
6.21 mi12:19:0656:069:0227:45
8:56
#22532
15K
9.32 mi12:45:321:22:328:5126:26
8:30
#21552
20K
12.43 mi13:13:091:50:098:5227:37
8:53
#21234
Half
13.11 mi13:18:581:55:588:515:49
8:32
#21152
25K
15.53 mi13:40:432:17:438:5221:45
8:58
#20928
30K
18.64 mi14:10:172:47:178:5829:34
9:31
#20742
20M
20.00 mi14:22:562:59:569:0012:39
9:19
#20534
21M
21.00 mi14:32:533:09:539:039:57
9:57
#20400
35K
21.75 mi14:39:393:16:399:036:46
9:03
#20308
23M
23.00 mi14:51:073:28:079:0311:28
9:09
#20135
24M
24.00 mi14:59:573:36:579:028:50
8:50
#19994
40K
24.85 mi15:07:443:44:449:037:47
9:06
#19874
25.2M
25.20 mi15:10:593:47:599:033:15
9:25
#19802
Finish
26.22 mi15:19:093:56:099:018:10
8:01
#19581
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi22931137361373619372(Top 68%)12214(Top 76%)12214(Top 216%)
10K6.21 mi3.10 mi22532+39913562+17413562+17422080(Top 78%)13379(Top 83%)13379(Top 237%)
15K9.32 mi3.11 mi21552+98013157+40513157+40519372(Top 68%)12214(Top 76%)12214(Top 216%)
20K12.43 mi3.11 mi21234+31813012+14513012+14520400(Top 72%)12632(Top 78%)12632(Top 224%)
Half13.11 mi0.68 mi21152+8212983+2912983+2919334(Top 68%)12188(Top 76%)12188(Top 216%)
25K15.53 mi2.42 mi20928+22412869+11412869+11419769(Top 70%)12312(Top 76%)12312(Top 218%)
30K18.64 mi3.11 mi20742+18612735+13412735+13420001(Top 70%)12287(Top 76%)12287(Top 218%)
20M20.00 mi1.36 mi20534+20812631+10412631+10418326(Top 65%)11375(Top 71%)11375(Top 202%)
21M21.00 mi1.00 mi20400+13412549+8212549+8218099(Top 64%)11208(Top 70%)11208(Top 199%)
35K21.75 mi0.75 mi20308+9212488+6112488+6118437(Top 65%)11241(Top 70%)11241(Top 199%)
23M23.00 mi1.25 mi20135+17312384+10412384+10417139(Top 60%)10574(Top 66%)10574(Top 187%)
24M24.00 mi1.00 mi19994+14112302+8212302+8216494(Top 58%)10258(Top 64%)10258(Top 182%)
40K24.85 mi0.85 mi19874+12012227+7512227+7516876(Top 59%)10322(Top 64%)10322(Top 183%)
25.2M25.20 mi0.35 mi19802+7212188+3912188+3914146(Top 50%)9031(Top 56%)9031(Top 160%)
Finish26.22 mi1.02 mi19581+22112068+12012068+12012972(Top 46%)8525(Top 53%)8525(Top 151%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21story building
+97ft-345ft

Overall

19372

Males

12214

M18-39

12214

5K→10K

3.1 - 6.2 mi

Top 78%
×5story building
+79ft-138ft

Overall

22080

Males

13379

M18-39

13379

10K→15K

6.2 - 9.3 mi

Top 68%
×3story building
+67ft-78ft

Overall

19372

Males

12214

M18-39

12214

15K→20K

9.3 - 12.4 mi

Top 72%
×5story building
+106ft-86ft

Overall

20400

Males

12632

M18-39

12632

20K→Half

12.4 - 13.1 mi

Top 68%
×2story building
+19ft-37ft

Overall

19334

Males

12188

M18-39

12188

Half→25K

13.1 - 15.5 mi

Top 70%
×4story building
+66ft-88ft

Overall

19769

Males

12312

M18-39

12312

25K→30K

15.5 - 18.6 mi

Top 70%
×9story building
+181ft-148ft

Overall

20001

Males

12287

M18-39

12287

30K→20M

18.6 - 20.0 mi

Top 65%
×5story building
+64ft-50ft

Overall

18326

Males

11375

M18-39

11375

20M→21M

20.0 - 21.0 mi

Top 64%
×8story building
+106ft-24ft

Overall

18099

Males

11208

M18-39

11208

21M→35K

21.0 - 21.8 mi

Top 65%
×7story building
+17ft-86ft

Overall

18437

Males

11241

M18-39

11241

35K→23M

21.8 - 23.0 mi

Top 60%
×5story building
+23ft-63ft

Overall

17139

Males

10574

M18-39

10574

23M→24M

23.0 - 24.0 mi

Top 58%
×6story building
+12ft-82ft

Overall

16494

Males

10258

M18-39

10258

24M→40K

24.0 - 24.9 mi

Top 59%
×1story
+6ft-20ft

Overall

16876

Males

10322

M18-39

10322

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

14146

Males

9031

M18-39

9031

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2story building
+22ft-21ft

Overall

12972

Males

8525

M18-39

8525

Passing Analysis

Category:
Athletes Passed
3751
Passed By
401
Net Change
+3350
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22931
5K → 10K48788+399#22931#22532
10K → 15K9855+980#22532#21552
15K → 20K37557+318#21552#21234
20K → Half919+82#21234#21152
Half → 25K25531+224#21152#20928
25K → 30K303117+186#20928#20742
30K → 20M22315+208#20742#20534
20M → 21M16430+134#20534#20400
21M → 35K10412+92#20400#20308
35K → 23M18714+173#20308#20135
23M → 24M1487+141#20135#19994
24M → 40K13616+120#19994#19874
40K → 25.2M720+72#19874#19802
25.2M → Finish2210+221#19802#19581
TOTALS3751401+3350
📊

Passing Visuals

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