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BOSTON MARATHON 2025

Zachariah Blegen-Dipietro

Bib: 5369•M

FL

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 16%
Gender (Male)
#0 / 16105
Top 26%
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
21:15
Rank: #6626
Start → 5K
21:15 | 6:50/mi
10K· 6.21 mi
42:15
Rank: #6291 (+335)
5K → 10K
21:00 | 6:46/mi
15K· 9.32 mi
1:03:17
Rank: #6087 (+204)
10K → 15K
21:02 | 6:46/mi
20K· 12.43 mi
1:24:21
Rank: #5835 (+252)
15K → 20K
21:04 | 6:47/mi
Half· 13.11 mi
1:28:58
Rank: #5835
20K → Half
4:37 | 6:46/mi
25K· 15.53 mi
1:45:25
Rank: #5589 (+246)
Half → 25K
16:27 | 6:47/mi
30K· 18.64 mi
2:06:57
Rank: #5255 (+334)
25K → 30K
21:32 | 6:56/mi
20M
2:16:26
Rank: #5117 (+138)
30K → 20M
9:29 | 6:59/mi
21M
2:23:47
Rank: #4995 (+122)
20M → 21M
7:21 | 7:21/mi
35K· 21.75 mi
2:28:57
Rank: #4966 (+29)
21M → 35K
5:10 | 6:54/mi
23M
2:37:35
Rank: #4793 (+173)
35K → 23M
8:38 | 6:54/mi
24M
2:44:26
Rank: #4730 (+63)
23M → 24M
6:51 | 6:51/mi
40K· 24.85 mi
2:50:25
Rank: #4675 (+55)
24M → 40K
5:59 | 7:00/mi
25.2M
2:52:59
Rank: #4640 (+35)
40K → 25.2M
2:34 | 7:27/mi
Finish· 26.22 mi
2:59:38
Rank: #4572 (+68)
25.2M → Finish
6:39 | 6:32/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:58
Pace6:47 /mi
2nd Half
Distance13.11 mi
Time1:30:40
Pace6:55 /mi
📊Positive Split: 1.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:5321:156:5021:15
6:50
-
10K
6.21 mi10:46:5342:156:4821:00
6:46
-0:04
15K
9.32 mi11:07:551:03:176:4721:02
6:46
0:00
20K
12.43 mi11:28:591:24:216:4721:04
6:47
+0:01
Half
13.11 mi11:33:361:28:586:474:37
6:46
-0:01
25K
15.53 mi11:50:031:45:256:4716:27
6:47
+0:01
30K
18.64 mi12:11:352:06:576:4921:32
6:56
+0:09
20M
20.00 mi12:21:042:16:266:499:29
6:59
+0:03
21M
21.00 mi12:28:252:23:476:517:21
7:21
+0:22
35K
21.75 mi12:33:352:28:576:515:10
6:54
-0:27
23M
23.00 mi12:42:132:37:356:518:38
6:54
0:00
24M
24.00 mi12:49:042:44:266:516:51
6:51
-0:03
40K
24.85 mi12:55:032:50:256:515:59
7:00
+0:09
25.2M
25.20 mi12:57:372:52:596:522:34
7:27
+0:27
Finish
26.22 mi13:04:162:59:386:516:39
6:32
-0:55

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

6:32 /mi

Average Pace

6:51 /mi

Slowest Pace

7:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:49:43

94% of race

Time at Steady Pace

9:55

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:51 /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 mi10:25:5321:156:5021:15
6:50
#6626
10K
6.21 mi10:46:5342:156:4821:00
6:46
#6291
15K
9.32 mi11:07:551:03:176:4721:02
6:46
#6087
20K
12.43 mi11:28:591:24:216:4721:04
6:47
#5835
Half
13.11 mi11:33:361:28:586:474:37
6:46
#5835
25K
15.53 mi11:50:031:45:256:4716:27
6:47
#5589
30K
18.64 mi12:11:352:06:576:4921:32
6:56
#5255
20M
20.00 mi12:21:042:16:266:499:29
6:59
#5117
21M
21.00 mi12:28:252:23:476:517:21
7:21
#4995
35K
21.75 mi12:33:352:28:576:515:10
6:54
#4966
23M
23.00 mi12:42:132:37:356:518:38
6:54
#4793
24M
24.00 mi12:49:042:44:266:516:51
6:51
#4730
40K
24.85 mi12:55:032:50:256:515:59
7:00
#4675
25.2M
25.20 mi12:57:372:52:596:522:34
7:27
#4640
Finish
26.22 mi13:04:162:59:386:516:39
6:32
#4572
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi6626601560155779(Top 20%)5268(Top 33%)5268(Top 93%)
10K6.21 mi3.10 mi6291+3355757+2585757+2585956(Top 21%)5450(Top 34%)5450(Top 97%)
15K9.32 mi3.11 mi6087+2045575+1825575+1825779(Top 20%)5268(Top 33%)5268(Top 93%)
20K12.43 mi3.11 mi5835+2525348+2275348+2275119(Top 18%)4721(Top 29%)4721(Top 84%)
Half13.11 mi0.68 mi58355349-15349-15836(Top 21%)5323(Top 33%)5323(Top 94%)
25K15.53 mi2.42 mi5589+2465136+2135136+2134768(Top 17%)4391(Top 27%)4391(Top 78%)
30K18.64 mi3.11 mi5255+3344829+3074829+3074287(Top 15%)3937(Top 24%)3937(Top 70%)
20M20.00 mi1.36 mi5117+1384704+1254704+1254003(Top 14%)3671(Top 23%)3671(Top 65%)
21M21.00 mi1.00 mi4995+1224596+1084596+1083883(Top 14%)3533(Top 22%)3533(Top 63%)
35K21.75 mi0.75 mi4966+294565+314565+314785(Top 17%)4228(Top 26%)4228(Top 75%)
23M23.00 mi1.25 mi4793+1734407+1584407+1583205(Top 11%)2925(Top 18%)2925(Top 52%)
24M24.00 mi1.00 mi4730+634347+604347+603826(Top 13%)3400(Top 21%)3400(Top 60%)
40K24.85 mi0.85 mi4675+554293+544293+543905(Top 14%)3424(Top 21%)3424(Top 61%)
25.2M25.20 mi0.35 mi4640+354261+324261+323197(Top 11%)2838(Top 18%)2838(Top 50%)
Finish26.22 mi1.02 mi4572+684191+704191+702969(Top 10%)2650(Top 16%)2650(Top 47%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21stories
+97ft-345ft

Overall

5779

Males

5268

M18-39

5268

5K→10K

3.1 - 6.2 mi

Top 21%
×5stories
+79ft-138ft

Overall

5956

Males

5450

M18-39

5450

10K→15K

6.2 - 9.3 mi

Top 20%
×3stories
+67ft-78ft

Overall

5779

Males

5268

M18-39

5268

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

5119

Males

4721

M18-39

4721

20K→Half

12.4 - 13.1 mi

Top 21%
×2stories
+19ft-37ft

Overall

5836

Males

5323

M18-39

5323

Half→25K

13.1 - 15.5 mi

Top 17%
×4stories
+66ft-88ft

Overall

4768

Males

4391

M18-39

4391

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

4287

Males

3937

M18-39

3937

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

4003

Males

3671

M18-39

3671

20M→21M

20.0 - 21.0 mi

Top 14%
×8stories
+106ft-24ft

Overall

3883

Males

3533

M18-39

3533

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4785

Males

4228

M18-39

4228

35K→23M

21.8 - 23.0 mi

Top 11%
×5stories
+23ft-63ft

Overall

3205

Males

2925

M18-39

2925

23M→24M

23.0 - 24.0 mi

Top 13%
×6stories
+12ft-82ft

Overall

3826

Males

3400

M18-39

3400

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

3905

Males

3424

M18-39

3424

40K→25.2M

24.9 - 25.2 mi

Top 11%
×1story
+13ft-16ft

Overall

3197

Males

2838

M18-39

2838

25.2M→Finish

25.2 - 26.2 mi

Top 10%
×2stories
+22ft-21ft

Overall

2969

Males

2650

M18-39

2650

Passing Analysis

Category:
Athletes Passed
2421
Passed By
367
Net Change
+2054
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6626
5K → 10K39964+335#6626#6291
10K → 15K26258+204#6291#6087
15K → 20K27523+252#6087#5835
20K → Half24240#5835#5835
Half → 25K25913+246#5835#5589
25K → 30K35925+334#5589#5255
30K → 20M15416+138#5255#5117
20M → 21M14321+122#5117#4995
21M → 35K5930+29#4995#4966
35K → 23M18714+173#4966#4793
23M → 24M8825+63#4793#4730
24M → 40K8126+55#4730#4675
40K → 25.2M449+35#4675#4640
25.2M → Finish8719+68#4640#4572
TOTALS2421367+2054
📊

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