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BOSTON MARATHON 2025

Martin Espelosin

Bib: 12719•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 26%
Gender (Male)
#0 / 16105
Top 39%
Masters (Masters Men)
#0 / 10463
Top 26%
Division (M50-54)
#0 / 1996
Top 22%
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
7:04/mi
21:58
↑ 97↓ 3451.5%
10K· 6.21 mi
7:04/mi
43:55
↑ 79↓ 1380.4%
15K· 9.32 mi
6:59/mi
1:05:38
↑ 67↓ 78
20K· 12.43 mi
7:06/mi
1:27:43
↑ 106↓ 860.1%
Half· 13.11 mi
6:58/mi
1:32:28
↑ 19↓ 370.5%
25K· 15.53 mi
7:04/mi
1:49:36
↑ 66↓ 880.2%
30K· 18.64 mi
7:14/mi
2:12:04
↑ 181↓ 1480.2%
20M
7:14/mi
2:21:54
↑ 64↓ 500.2%
21M
7:57/mi
2:29:51
↑ 106↓ 241.6%
35K· 21.75 mi
7:10/mi
2:35:13
↑ 17↓ 861.7%
23M
7:37/mi
2:44:45
↑ 23↓ 630.6%
24M
7:42/mi
2:52:27
↓ 821.3%
40K· 24.85 mi
8:26/mi
2:59:40
↓ 200.3%
25.2M
9:20/mi
3:02:53
↑ 13↓ 160.2%
Finish· 26.22 mi
8:12/mi
3:11:14
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:28
Pace7:03 /mi
2nd Half
Distance13.11 mi
Time1:38:46
Pace7:32 /mi
📊Positive Split: 6.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:5221:587:0421:58
7:04
-
10K
6.21 mi11:11:4943:557:0421:57
7:04
0:00
15K
9.32 mi11:33:321:05:387:0321:43
6:59
-0:05
20K
12.43 mi11:55:371:27:437:0322:05
7:06
+0:07
Half
13.11 mi12:00:221:32:287:034:45
6:58
-0:08
25K
15.53 mi12:17:301:49:367:0317:08
7:04
+0:06
30K
18.64 mi12:39:582:12:047:0522:28
7:14
+0:10
20M
20.00 mi12:49:482:21:547:069:50
7:14
0:00
21M
21.00 mi12:57:452:29:517:087:57
7:57
+0:43
35K
21.75 mi13:03:072:35:137:085:22
7:10
-0:47
23M
23.00 mi13:12:392:44:457:109:32
7:37
+0:27
24M
24.00 mi13:20:212:52:277:117:42
7:42
+0:05
40K
24.85 mi13:27:342:59:407:147:13
8:26
+0:44
25.2M
25.20 mi13:30:473:02:537:153:13
9:20
+0:54
Finish
26.22 mi13:39:083:11:147:188:21
8:12
-1:08

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

6:58 /mi

Average Pace

7:18 /mi

Slowest Pace

9:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:27:16

77% of race

Time at Slower Pace

43:58

23% of race

Average Pace: 7:18 /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 mi10:49:5221:587:0421:58
7:04
#8373
10K
6.21 mi11:11:4943:557:0421:57
7:04
#8404
15K
9.32 mi11:33:321:05:387:0321:43
6:59
#8048
20K
12.43 mi11:55:371:27:437:0322:05
7:06
#7884
Half
13.11 mi12:00:221:32:287:034:45
6:58
#7849
25K
15.53 mi12:17:301:49:367:0317:08
7:04
#7617
30K
18.64 mi12:39:582:12:047:0522:28
7:14
#7240
20M
20.00 mi12:49:482:21:547:069:50
7:14
#7039
21M
21.00 mi12:57:452:29:517:087:57
7:57
#6957
35K
21.75 mi13:03:072:35:137:085:22
7:10
#6901
23M
23.00 mi13:12:392:44:457:109:32
7:37
#6856
24M
24.00 mi13:20:212:52:277:117:42
7:42
#6906
40K
24.85 mi13:27:342:59:407:147:13
8:26
#7071
25.2M
25.20 mi13:30:473:02:537:153:13
9:20
#7157
Finish
26.22 mi13:39:083:11:147:188:21
8:12
#7388
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi8373722572257555(Top 27%)6649(Top 41%)6649(Top 333%)
10K6.21 mi3.10 mi8404-317236-117236-118380(Top 30%)7221(Top 45%)7221(Top 362%)
15K9.32 mi3.11 mi8048+3567006+2307006+2307555(Top 27%)6649(Top 41%)6649(Top 333%)
20K12.43 mi3.11 mi7884+1646880+1266880+1267553(Top 27%)6581(Top 41%)6581(Top 330%)
Half13.11 mi0.68 mi7849+356855+256855+257257(Top 26%)6399(Top 40%)6399(Top 321%)
25K15.53 mi2.42 mi7617+2326686+1696686+1696740(Top 24%)5932(Top 37%)5932(Top 297%)
30K18.64 mi3.11 mi7240+3776378+3086378+3086072(Top 21%)5359(Top 33%)5359(Top 268%)
20M20.00 mi1.36 mi7039+2016205+1736205+1735399(Top 19%)4774(Top 30%)4774(Top 239%)
21M21.00 mi1.00 mi6957+826125+806125+807056(Top 25%)5707(Top 35%)5707(Top 286%)
35K21.75 mi0.75 mi6901+566068+576068+576415(Top 23%)5329(Top 33%)5329(Top 267%)
23M23.00 mi1.25 mi6856+456000+686000+687322(Top 26%)5762(Top 36%)5762(Top 289%)
24M24.00 mi1.00 mi6906-506006-66006-69082(Top 32%)6684(Top 42%)6684(Top 335%)
40K24.85 mi0.85 mi7071-1656080-746080-7412994(Top 46%)8509(Top 53%)8509(Top 426%)
25.2M25.20 mi0.35 mi7157-866124-446124-4413496(Top 48%)8666(Top 54%)8666(Top 434%)
Finish26.22 mi1.02 mi7388-2316241-1176241-11714182(Top 50%)9092(Top 56%)9092(Top 456%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21story building
+97ft-345ft

Overall

7555

Males

6649

M50-54

6649

5K→10K

3.1 - 6.2 mi

Top 30%
×5story building
+79ft-138ft

Overall

8380

Males

7221

M50-54

7221

10K→15K

6.2 - 9.3 mi

Top 27%
×3story building
+67ft-78ft

Overall

7555

Males

6649

M50-54

6649

15K→20K

9.3 - 12.4 mi

Top 27%
×5story building
+106ft-86ft

Overall

7553

Males

6581

M50-54

6581

20K→Half

12.4 - 13.1 mi

Top 26%
×2story building
+19ft-37ft

Overall

7257

Males

6399

M50-54

6399

Half→25K

13.1 - 15.5 mi

Top 24%
×4story building
+66ft-88ft

Overall

6740

Males

5932

M50-54

5932

25K→30K

15.5 - 18.6 mi

Top 21%
×9story building
+181ft-148ft

Overall

6072

Males

5359

M50-54

5359

30K→20M

18.6 - 20.0 mi

Top 19%
×5story building
+64ft-50ft

Overall

5399

Males

4774

M50-54

4774

20M→21M

20.0 - 21.0 mi

Top 25%
×8story building
+106ft-24ft

Overall

7056

Males

5707

M50-54

5707

21M→35K

21.0 - 21.8 mi

Top 23%
×7story building
+17ft-86ft

Overall

6415

Males

5329

M50-54

5329

35K→23M

21.8 - 23.0 mi

Top 26%
×5story building
+23ft-63ft

Overall

7322

Males

5762

M50-54

5762

23M→24M

23.0 - 24.0 mi

Top 32%
×6story building
+12ft-82ft

Overall

9082

Males

6684

M50-54

6684

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

12994

Males

8509

M50-54

8509

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

13496

Males

8666

M50-54

8666

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2story building
+22ft-21ft

Overall

14182

Males

9092

M50-54

9092

Passing Analysis

Category:
Athletes Passed
2137
Passed By
1152
Net Change
+985
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8373
5K → 10K194225-31#8373#8404
10K → 15K37822+356#8404#8048
15K → 20K23066+164#8048#7884
20K → Half4510+35#7884#7849
Half → 25K25018+232#7849#7617
25K → 30K40528+377#7617#7240
30K → 20M2109+201#7240#7039
20M → 21M12442+82#7039#6957
21M → 35K7721+56#6957#6901
35K → 23M11368+45#6901#6856
23M → 24M58108-50#6856#6906
24M → 40K22187-165#6906#7071
40K → 25.2M14100-86#7071#7157
25.2M → Finish17248-231#7157#7388
TOTALS21371152+985
📊

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