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BOSTON MARATHON 2025

Marc Lennon

Bib: 1104•M

CT

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 7%
Gender (Male)
#0 / 16105
Top 11%
Division (M18-39)
#0 / 5642
Top 27%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:18
Rank: #1924
Start → 5K
19:18 | 6:13/mi
10K· 6.21 mi
38:38
Rank: #1962 (-38)
5K → 10K
19:20 | 6:13/mi
15K· 9.32 mi
58:11
Rank: #2056 (-94)
10K → 15K
19:33 | 6:18/mi
20K· 12.43 mi
1:17:46
Rank: #2034 (+22)
15K → 20K
19:35 | 6:18/mi
Half· 13.11 mi
1:22:00
Rank: #2030 (+4)
20K → Half
4:14 | 6:12/mi
25K· 15.53 mi
1:37:21
Rank: #2026 (+4)
Half → 25K
15:21 | 6:20/mi
30K· 18.64 mi
1:57:19
Rank: #1912 (+114)
25K → 30K
19:58 | 6:26/mi
20M
2:06:12
Rank: #1878 (+34)
30K → 20M
8:53 | 6:32/mi
21M
2:13:14
Rank: #1879 (-1)
20M → 21M
7:02 | 7:02/mi
35K· 21.75 mi
2:18:04
Rank: #1868 (+11)
21M → 35K
4:50 | 6:28/mi
23M
2:26:41
Rank: #1900 (-32)
35K → 23M
8:37 | 6:53/mi
24M
2:33:23
Rank: #1932 (-32)
23M → 24M
6:42 | 6:42/mi
40K· 24.85 mi
2:39:15
Rank: #1945 (-13)
24M → 40K
5:52 | 6:52/mi
25.2M
2:41:45
Rank: #1938 (+7)
40K → 25.2M
2:30 | 7:15/mi
Finish· 26.22 mi
2:48:18
Rank: #1939 (-1)
25.2M → Finish
6:33 | 6:26/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:00
Pace6:15 /mi
2nd Half
Distance13.11 mi
Time1:26:18
Pace6:35 /mi
📊Positive Split: 5.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:2819:186:1319:18
6:13
-
10K
6.21 mi10:38:4838:386:1319:20
6:13
0:00
15K
9.32 mi10:58:2158:116:1519:33
6:18
+0:05
20K
12.43 mi11:17:561:17:466:1519:35
6:18
0:00
Half
13.11 mi11:22:101:22:006:154:14
6:12
-0:06
25K
15.53 mi11:37:311:37:216:1615:21
6:20
+0:08
30K
18.64 mi11:57:291:57:196:1819:58
6:26
+0:06
20M
20.00 mi12:06:222:06:126:198:53
6:32
+0:06
21M
21.00 mi12:13:242:13:146:217:02
7:02
+0:30
35K
21.75 mi12:18:142:18:046:214:50
6:28
-0:34
23M
23.00 mi12:26:512:26:416:238:37
6:53
+0:25
24M
24.00 mi12:33:332:33:236:236:42
6:42
-0:11
40K
24.85 mi12:39:252:39:156:245:52
6:52
+0:10
25.2M
25.20 mi12:41:552:41:456:252:30
7:15
+0:23
Finish
26.22 mi12:48:282:48:186:256:33
6:26
-0:49

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

6:12 /mi

Average Pace

6:25 /mi

Slowest Pace

7:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:24:17

86% of race

Time at Steady Pace

24:01

14% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:25 /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 mi10:19:2819:186:1319:18
6:13
#1924
10K
6.21 mi10:38:4838:386:1319:20
6:13
#1962
15K
9.32 mi10:58:2158:116:1519:33
6:18
#2056
20K
12.43 mi11:17:561:17:466:1519:35
6:18
#2034
Half
13.11 mi11:22:101:22:006:154:14
6:12
#2030
25K
15.53 mi11:37:311:37:216:1615:21
6:20
#2026
30K
18.64 mi11:57:291:57:196:1819:58
6:26
#1912
20M
20.00 mi12:06:222:06:126:198:53
6:32
#1878
21M
21.00 mi12:13:242:13:146:217:02
7:02
#1879
35K
21.75 mi12:18:142:18:046:214:50
6:28
#1868
23M
23.00 mi12:26:512:26:416:238:37
6:53
#1900
24M
24.00 mi12:33:332:33:236:236:42
6:42
#1932
40K
24.85 mi12:39:252:39:156:245:52
6:52
#1945
25.2M
25.20 mi12:41:552:41:456:252:30
7:15
#1938
Finish
26.22 mi12:48:282:48:186:256:33
6:26
#1939
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1924183018302299(Top 8%)2194(Top 14%)2194(Top 39%)
10K6.21 mi3.10 mi1962-381870-401870-402012(Top 7%)1916(Top 12%)1916(Top 34%)
15K9.32 mi3.11 mi2056-941960-901960-902299(Top 8%)2194(Top 14%)2194(Top 39%)
20K12.43 mi3.11 mi2034+221941+191941+192016(Top 7%)1921(Top 12%)1921(Top 34%)
Half13.11 mi0.68 mi2030+41938+31938+31973(Top 7%)1882(Top 12%)1882(Top 33%)
25K15.53 mi2.42 mi2026+41931+71931+72008(Top 7%)1912(Top 12%)1912(Top 34%)
30K18.64 mi3.11 mi1912+1141820+1111820+1111653(Top 6%)1567(Top 10%)1567(Top 28%)
20M20.00 mi1.36 mi1878+341787+331787+331754(Top 6%)1660(Top 10%)1660(Top 29%)
21M21.00 mi1.00 mi1879-11786+11786+12365(Top 8%)2206(Top 14%)2206(Top 39%)
35K21.75 mi0.75 mi1868+111776+101776+102238(Top 8%)2090(Top 13%)2090(Top 37%)
23M23.00 mi1.25 mi1900-321803-271803-273094(Top 11%)2824(Top 18%)2824(Top 50%)
24M24.00 mi1.00 mi1932-321833-301833-302953(Top 10%)2677(Top 17%)2677(Top 47%)
40K24.85 mi0.85 mi1945-131843-101843-103121(Top 11%)2794(Top 17%)2794(Top 50%)
25.2M25.20 mi0.35 mi1938+71836+71836+72282(Top 8%)2035(Top 13%)2035(Top 36%)
Finish26.22 mi1.02 mi1939-11837-11837-12426(Top 9%)2206(Top 14%)2206(Top 39%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2299

Males

2194

M18-39

2194

5K→10K

3.1 - 6.2 mi

Top 7%
×5stories
+79ft-138ft

Overall

2012

Males

1916

M18-39

1916

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2299

Males

2194

M18-39

2194

15K→20K

9.3 - 12.4 mi

Top 7%
×5stories
+106ft-86ft

Overall

2016

Males

1921

M18-39

1921

20K→Half

12.4 - 13.1 mi

Top 7%
×2stories
+19ft-37ft

Overall

1973

Males

1882

M18-39

1882

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

2008

Males

1912

M18-39

1912

25K→30K

15.5 - 18.6 mi

Top 6%
×9stories
+181ft-148ft

Overall

1653

Males

1567

M18-39

1567

30K→20M

18.6 - 20.0 mi

Top 6%
×5stories
+64ft-50ft

Overall

1754

Males

1660

M18-39

1660

20M→21M

20.0 - 21.0 mi

Top 8%
×8stories
+106ft-24ft

Overall

2365

Males

2206

M18-39

2206

21M→35K

21.0 - 21.8 mi

Top 8%
×7stories
+17ft-86ft

Overall

2238

Males

2090

M18-39

2090

35K→23M

21.8 - 23.0 mi

Top 11%
×5stories
+23ft-63ft

Overall

3094

Males

2824

M18-39

2824

23M→24M

23.0 - 24.0 mi

Top 10%
×6stories
+12ft-82ft

Overall

2953

Males

2677

M18-39

2677

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

3121

Males

2794

M18-39

2794

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

2282

Males

2035

M18-39

2035

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2stories
+22ft-21ft

Overall

2426

Males

2206

M18-39

2206

Passing Analysis

Category:
Athletes Passed
657
Passed By
672
Net Change
-15
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1924
5K → 10K93131-38#1924#1962
10K → 15K34128-94#1962#2056
15K → 20K7654+22#2056#2034
20K → Half128+4#2034#2030
Half → 25K6056+4#2030#2026
25K → 30K13218+114#2026#1912
30K → 20M5117+34#1912#1878
20M → 21M4344-1#1878#1879
21M → 35K2817+11#1879#1868
35K → 23M3870-32#1868#1900
23M → 24M2355-32#1900#1932
24M → 40K2134-13#1932#1945
40K → 25.2M147+7#1945#1938
25.2M → Finish3233-1#1938#1939
TOTALS657672-15
📊

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