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BOSTON MARATHON 2025

Joshua Lazaro

Bib: 3758•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 19%
Gender (Male)
#0 / 16105
Top 30%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:39
Rank: #4998
Start → 5K
20:39 | 6:39/mi
10K· 6.21 mi
41:13
Rank: #4763 (+235)
5K → 10K
20:34 | 6:37/mi
15K· 9.32 mi
1:01:47
Rank: #4619 (+144)
10K → 15K
20:34 | 6:37/mi
20K· 12.43 mi
1:23:05
Rank: #4871 (-252)
15K → 20K
21:18 | 6:51/mi
Half· 13.11 mi
1:27:36
Rank: #4854 (+17)
20K → Half
4:31 | 6:37/mi
25K· 15.53 mi
1:44:05
Rank: #4804 (+50)
Half → 25K
16:29 | 6:48/mi
30K· 18.64 mi
2:05:56
Rank: #4799 (+5)
25K → 30K
21:51 | 7:02/mi
20M
2:15:38
Rank: #4795 (+4)
30K → 20M
9:42 | 7:08/mi
21M
2:23:17
Rank: #4801 (-6)
20M → 21M
7:39 | 7:39/mi
35K· 21.75 mi
2:28:35
Rank: #4830 (-29)
21M → 35K
5:18 | 7:05/mi
23M
2:37:41
Rank: #4843 (-13)
35K → 23M
9:06 | 7:16/mi
24M
2:45:04
Rank: #4957 (-114)
23M → 24M
7:23 | 7:23/mi
40K· 24.85 mi
2:51:58
Rank: #5133 (-176)
24M → 40K
6:54 | 8:04/mi
25.2M
2:55:04
Rank: #5188 (-55)
40K → 25.2M
3:06 | 8:59/mi
Finish· 26.22 mi
3:03:24
Rank: #5392 (-204)
25.2M → Finish
8:20 | 8:11/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:36
Pace6:41 /mi
2nd Half
Distance13.11 mi
Time1:35:48
Pace7:18 /mi
📊Positive Split: 9.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:3620:396:3920:39
6:39
-
10K
6.21 mi10:43:1041:136:3820:34
6:37
-0:02
15K
9.32 mi11:03:441:01:476:3820:34
6:37
0:00
20K
12.43 mi11:25:021:23:056:4121:18
6:51
+0:14
Half
13.11 mi11:29:331:27:366:414:31
6:37
-0:14
25K
15.53 mi11:46:021:44:056:4216:29
6:48
+0:11
30K
18.64 mi12:07:532:05:566:4521:51
7:02
+0:14
20M
20.00 mi12:17:352:15:386:479:42
7:08
+0:06
21M
21.00 mi12:25:142:23:176:497:39
7:39
+0:31
35K
21.75 mi12:30:322:28:356:505:18
7:05
-0:34
23M
23.00 mi12:39:382:37:416:519:06
7:16
+0:11
24M
24.00 mi12:47:012:45:046:537:23
7:23
+0:07
40K
24.85 mi12:53:552:51:586:556:54
8:04
+0:41
25.2M
25.20 mi12:57:012:55:046:573:06
8:59
+0:55
Finish
26.22 mi13:05:213:03:247:008:20
8:11
-0:48

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

6:37 /mi

Average Pace

7:00 /mi

Slowest Pace

8:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:06:18

36% of race

Time at Steady Pace

1:31:07

50% of race

Time at Slower Pace

25:59

14% of race

Average Pace: 7:00 /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 mi10:22:3620:396:3920:39
6:39
#4998
10K
6.21 mi10:43:1041:136:3820:34
6:37
#4763
15K
9.32 mi11:03:441:01:476:3820:34
6:37
#4619
20K
12.43 mi11:25:021:23:056:4121:18
6:51
#4871
Half
13.11 mi11:29:331:27:366:414:31
6:37
#4854
25K
15.53 mi11:46:021:44:056:4216:29
6:48
#4804
30K
18.64 mi12:07:532:05:566:4521:51
7:02
#4799
20M
20.00 mi12:17:352:15:386:479:42
7:08
#4795
21M
21.00 mi12:25:142:23:176:497:39
7:39
#4801
35K
21.75 mi12:30:322:28:356:505:18
7:05
#4830
23M
23.00 mi12:39:382:37:416:519:06
7:16
#4843
24M
24.00 mi12:47:012:45:046:537:23
7:23
#4957
40K
24.85 mi12:53:552:51:586:556:54
8:04
#5133
25.2M
25.20 mi12:57:012:55:046:573:06
8:59
#5188
Finish
26.22 mi13:05:213:03:247:008:20
8:11
#5392
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4998467246724407(Top 16%)4137(Top 26%)4137(Top 73%)
10K6.21 mi3.10 mi4763+2354459+2134459+2134636(Top 16%)4342(Top 27%)4342(Top 77%)
15K9.32 mi3.11 mi4619+1444328+1314328+1314407(Top 16%)4137(Top 26%)4137(Top 73%)
20K12.43 mi3.11 mi4871-2524539-2114539-2115832(Top 21%)5302(Top 33%)5302(Top 94%)
Half13.11 mi0.68 mi4854+174525+144525+144638(Top 16%)4331(Top 27%)4331(Top 77%)
25K15.53 mi2.42 mi4804+504469+564469+564873(Top 17%)4481(Top 28%)4481(Top 79%)
30K18.64 mi3.11 mi4799+54441+284441+284903(Top 17%)4459(Top 28%)4459(Top 79%)
20M20.00 mi1.36 mi4795+4444144414885(Top 17%)4400(Top 27%)4400(Top 78%)
21M21.00 mi1.00 mi4801-64436+54436+55392(Top 19%)4662(Top 29%)4662(Top 83%)
35K21.75 mi0.75 mi4830-294454-184454-185891(Top 21%)4990(Top 31%)4990(Top 88%)
23M23.00 mi1.25 mi4843-134453+14453+15270(Top 19%)4506(Top 28%)4506(Top 80%)
24M24.00 mi1.00 mi4957-1144537-844537-846919(Top 24%)5472(Top 34%)5472(Top 97%)
40K24.85 mi0.85 mi5133-1764670-1334670-13310638(Top 37%)7366(Top 46%)7366(Top 131%)
25.2M25.20 mi0.35 mi5188-554715-454715-4511637(Top 41%)7771(Top 48%)7771(Top 138%)
Finish26.22 mi1.02 mi5392-2044861-1464861-14614082(Top 50%)9041(Top 56%)9041(Top 160%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4407

Males

4137

M18-39

4137

5K→10K

3.1 - 6.2 mi

Top 16%
×5stories
+79ft-138ft

Overall

4636

Males

4342

M18-39

4342

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4407

Males

4137

M18-39

4137

15K→20K

9.3 - 12.4 mi

Top 21%
×5stories
+106ft-86ft

Overall

5832

Males

5302

M18-39

5302

20K→Half

12.4 - 13.1 mi

Top 16%
×2stories
+19ft-37ft

Overall

4638

Males

4331

M18-39

4331

Half→25K

13.1 - 15.5 mi

Top 17%
×4stories
+66ft-88ft

Overall

4873

Males

4481

M18-39

4481

25K→30K

15.5 - 18.6 mi

Top 17%
×9stories
+181ft-148ft

Overall

4903

Males

4459

M18-39

4459

30K→20M

18.6 - 20.0 mi

Top 17%
×5stories
+64ft-50ft

Overall

4885

Males

4400

M18-39

4400

20M→21M

20.0 - 21.0 mi

Top 19%
×8stories
+106ft-24ft

Overall

5392

Males

4662

M18-39

4662

21M→35K

21.0 - 21.8 mi

Top 21%
×7stories
+17ft-86ft

Overall

5891

Males

4990

M18-39

4990

35K→23M

21.8 - 23.0 mi

Top 19%
×5stories
+23ft-63ft

Overall

5270

Males

4506

M18-39

4506

23M→24M

23.0 - 24.0 mi

Top 24%
×6stories
+12ft-82ft

Overall

6919

Males

5472

M18-39

5472

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

10638

Males

7366

M18-39

7366

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

11637

Males

7771

M18-39

7771

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2stories
+22ft-21ft

Overall

14082

Males

9041

M18-39

9041

Passing Analysis

Category:
Athletes Passed
1220
Passed By
1614
Net Change
-394
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4998
5K → 10K30671+235#4998#4763
10K → 15K19652+144#4763#4619
15K → 20K64316-252#4619#4871
20K → Half3316+17#4871#4854
Half → 25K12575+50#4854#4804
25K → 30K164159+5#4804#4799
30K → 20M7369+4#4799#4795
20M → 21M6571-6#4795#4801
21M → 35K4473-29#4801#4830
35K → 23M8194-13#4830#4843
23M → 24M32146-114#4843#4957
24M → 40K20196-176#4957#5133
40K → 25.2M964-55#5133#5188
25.2M → Finish8212-204#5188#5392
TOTALS12201614-394
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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