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BOSTON MARATHON 2025

Daniel Larson

Bib: 15148•M

CO

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 48%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M55-59)
#0 / 1648
Top 39%
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
7:34/mi
23:32
↑ 97↓ 3451.5%
10K· 6.21 mi
7:36/mi
47:10
↑ 79↓ 1380.4%
15K· 9.32 mi
7:51/mi
1:11:34
↑ 67↓ 78
20K· 12.43 mi
7:58/mi
1:36:19
↑ 106↓ 860.1%
Half· 13.11 mi
7:40/mi
1:41:33
↑ 19↓ 370.5%
25K· 15.53 mi
8:21/mi
2:01:47
↑ 66↓ 880.2%
30K· 18.64 mi
8:30/mi
2:28:11
↑ 181↓ 1480.2%
20M
8:40/mi
2:39:58
↑ 64↓ 500.2%
21M
9:03/mi
2:49:01
↑ 106↓ 241.6%
35K· 21.75 mi
7:38/mi
2:54:44
↑ 17↓ 861.7%
23M
8:16/mi
3:05:05
↑ 23↓ 630.6%
24M
8:05/mi
3:13:10
↓ 821.3%
40K· 24.85 mi
8:05/mi
3:20:05
↓ 200.3%
25.2M
8:36/mi
3:23:03
↑ 13↓ 160.2%
Finish· 26.22 mi
7:59/mi
3:31:11
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:33
Pace7:45 /mi
2nd Half
Distance13.11 mi
Time1:49:38
Pace8:22 /mi
📊Positive Split: 8.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:2323:327:3423:32
7:34
-
10K
6.21 mi11:19:0147:107:3523:38
7:36
+0:02
15K
9.32 mi11:43:251:11:347:4124:24
7:51
+0:15
20K
12.43 mi12:08:101:36:197:4524:45
7:58
+0:07
Half
13.11 mi12:13:241:41:337:455:14
7:40
-0:18
25K
15.53 mi12:33:382:01:477:5020:14
8:21
+0:41
30K
18.64 mi13:00:022:28:117:5726:24
8:30
+0:09
20M
20.00 mi13:11:492:39:588:0011:47
8:40
+0:10
21M
21.00 mi13:20:522:49:018:039:03
9:03
+0:23
35K
21.75 mi13:26:352:54:448:025:43
7:38
-1:25
23M
23.00 mi13:36:563:05:058:0310:21
8:16
+0:38
24M
24.00 mi13:45:013:13:108:038:05
8:05
-0:11
40K
24.85 mi13:51:563:20:058:036:55
8:05
0:00
25.2M
25.20 mi13:54:543:23:038:032:58
8:36
+0:31
Finish
26.22 mi14:03:023:31:118:048:08
7:59
-0:37

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

7:34 /mi

Average Pace

8:04 /mi

Slowest Pace

9:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:20:45

67% of race

Time at Steady Pace

1:01:23

29% of race

Time at Slower Pace

9:03

4% of race

Average Pace: 8:03 /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 mi10:55:2323:327:3423:32
7:34
#12887
10K
6.21 mi11:19:0147:107:3523:38
7:36
#12942
15K
9.32 mi11:43:251:11:347:4124:24
7:51
#13559
20K
12.43 mi12:08:101:36:197:4524:45
7:58
#13801
Half
13.11 mi12:13:241:41:337:455:14
7:40
#13754
25K
15.53 mi12:33:382:01:477:5020:14
8:21
#14215
30K
18.64 mi13:00:022:28:117:5726:24
8:30
#14277
20M
20.00 mi13:11:492:39:588:0011:47
8:40
#14306
21M
21.00 mi13:20:522:49:018:039:03
9:03
#14263
35K
21.75 mi13:26:352:54:448:025:43
7:38
#14051
23M
23.00 mi13:36:563:05:058:0310:21
8:16
#13895
24M
24.00 mi13:45:013:13:108:038:05
8:05
#13782
40K
24.85 mi13:51:563:20:058:036:55
8:05
#13645
25.2M
25.20 mi13:54:543:23:038:032:58
8:36
#13561
Finish
26.22 mi14:03:023:31:118:048:08
7:59
#13530
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi128879594959414828(Top 52%)10292(Top 64%)10292(Top 625%)
10K6.21 mi3.10 mi12942-559602-89602-813071(Top 46%)9624(Top 60%)9624(Top 584%)
15K9.32 mi3.11 mi13559-6179798-1969798-19614828(Top 52%)10292(Top 64%)10292(Top 625%)
20K12.43 mi3.11 mi13801-2429860-629860-6214644(Top 52%)10152(Top 63%)10152(Top 616%)
Half13.11 mi0.68 mi13754+479829+319829+3113127(Top 46%)9526(Top 59%)9526(Top 578%)
25K15.53 mi2.42 mi14215-46110006-17710006-17716190(Top 57%)10719(Top 67%)10719(Top 650%)
30K18.64 mi3.11 mi14277-629969+379969+3714719(Top 52%)9928(Top 62%)9928(Top 602%)
20M20.00 mi1.36 mi14306-299960+99960+914855(Top 52%)9843(Top 61%)9843(Top 597%)
21M21.00 mi1.00 mi14263+439917+439917+4313782(Top 49%)9234(Top 57%)9234(Top 560%)
35K21.75 mi0.75 mi14051+2129796+1219796+1219642(Top 34%)7196(Top 45%)7196(Top 437%)
23M23.00 mi1.25 mi13895+1569692+1049692+10411814(Top 42%)8151(Top 51%)8151(Top 495%)
24M24.00 mi1.00 mi13782+1139604+889604+8811788(Top 42%)8061(Top 50%)8061(Top 489%)
40K24.85 mi0.85 mi13645+1379524+809524+8010775(Top 38%)7453(Top 46%)7453(Top 452%)
25.2M25.20 mi0.35 mi13561+849474+509474+509427(Top 33%)6679(Top 41%)6679(Top 405%)
Finish26.22 mi1.02 mi13530+319438+369438+3612744(Top 45%)8407(Top 52%)8407(Top 510%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21story building
+97ft-345ft

Overall

14828

Males

10292

M55-59

10292

5K→10K

3.1 - 6.2 mi

Top 46%
×5story building
+79ft-138ft

Overall

13071

Males

9624

M55-59

9624

10K→15K

6.2 - 9.3 mi

Top 52%
×3story building
+67ft-78ft

Overall

14828

Males

10292

M55-59

10292

15K→20K

9.3 - 12.4 mi

Top 52%
×5story building
+106ft-86ft

Overall

14644

Males

10152

M55-59

10152

20K→Half

12.4 - 13.1 mi

Top 46%
×2story building
+19ft-37ft

Overall

13127

Males

9526

M55-59

9526

Half→25K

13.1 - 15.5 mi

Top 57%
×4story building
+66ft-88ft

Overall

16190

Males

10719

M55-59

10719

25K→30K

15.5 - 18.6 mi

Top 52%
×9story building
+181ft-148ft

Overall

14719

Males

9928

M55-59

9928

30K→20M

18.6 - 20.0 mi

Top 52%
×5story building
+64ft-50ft

Overall

14855

Males

9843

M55-59

9843

20M→21M

20.0 - 21.0 mi

Top 49%
×8story building
+106ft-24ft

Overall

13782

Males

9234

M55-59

9234

21M→35K

21.0 - 21.8 mi

Top 34%
×7story building
+17ft-86ft

Overall

9642

Males

7196

M55-59

7196

35K→23M

21.8 - 23.0 mi

Top 42%
×5story building
+23ft-63ft

Overall

11814

Males

8151

M55-59

8151

23M→24M

23.0 - 24.0 mi

Top 42%
×6story building
+12ft-82ft

Overall

11788

Males

8061

M55-59

8061

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10775

Males

7453

M55-59

7453

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

9427

Males

6679

M55-59

6679

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2story building
+22ft-21ft

Overall

12744

Males

8407

M55-59

8407

Passing Analysis

Category:
Athletes Passed
1951
Passed By
2594
Net Change
-643
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12887
5K → 10K254309-55#12887#12942
10K → 15K68685-617#12942#13559
15K → 20K132374-242#13559#13801
20K → Half6316+47#13801#13754
Half → 25K74535-461#13754#14215
25K → 30K239301-62#14215#14277
30K → 20M107136-29#14277#14306
20M → 21M13592+43#14306#14263
21M → 35K2131+212#14263#14051
35K → 23M19438+156#14051#13895
23M → 24M14633+113#13895#13782
24M → 40K15417+137#13782#13645
40K → 25.2M884+84#13645#13561
25.2M → Finish8453+31#13561#13530
TOTALS19512594-643
📊

Passing Visuals

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