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BOSTON MARATHON 2025

Christopher Lyon

Bib: 9555•M

MN

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 35%
Gender (Male)
#0 / 16105
Top 48%
Masters (Masters Men)
#0 / 10463
Top 37%
Division (M40-44)
#0 / 2247
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:01
Rank: #11390
Start → 5K
23:01 | 7:25/mi
10K· 6.21 mi
46:09
Rank: #11477 (-87)
5K → 10K
23:08 | 7:27/mi
15K· 9.32 mi
1:09:13
Rank: #11304 (+173)
10K → 15K
23:04 | 7:25/mi
20K· 12.43 mi
1:32:17
Rank: #10983 (+321)
15K → 20K
23:04 | 7:25/mi
Half· 13.11 mi
1:37:20
Rank: #10968 (+15)
20K → Half
5:03 | 7:24/mi
25K· 15.53 mi
1:55:41
Rank: #10865 (+103)
Half → 25K
18:21 | 7:34/mi
30K· 18.64 mi
2:19:59
Rank: #10665 (+200)
25K → 30K
24:18 | 7:49/mi
20M
2:30:44
Rank: #10569 (+96)
30K → 20M
10:45 | 7:55/mi
21M
2:39:02
Rank: #10460 (+109)
20M → 21M
8:18 | 8:18/mi
35K· 21.75 mi
2:44:49
Rank: #10437 (+23)
21M → 35K
5:47 | 7:44/mi
23M
2:54:38
Rank: #10290 (+147)
35K → 23M
9:49 | 7:50/mi
24M
3:02:19
Rank: #10192 (+98)
23M → 24M
7:41 | 7:41/mi
40K· 24.85 mi
3:09:00
Rank: #10113 (+79)
24M → 40K
6:41 | 7:49/mi
25.2M
3:11:57
Rank: #10077 (+36)
40K → 25.2M
2:57 | 8:33/mi
Finish· 26.22 mi
3:19:28
Rank: #9981 (+96)
25.2M → Finish
7:31 | 7:23/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:20
Pace7:25 /mi
2nd Half
Distance13.11 mi
Time1:42:08
Pace7:47 /mi
📊Positive Split: 4.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:3923:017:2523:01
7:25
-
10K
6.21 mi11:11:4746:097:2623:08
7:27
+0:02
15K
9.32 mi11:34:511:09:137:2623:04
7:25
-0:02
20K
12.43 mi11:57:551:32:177:2623:04
7:25
0:00
Half
13.11 mi12:02:581:37:207:255:03
7:24
-0:01
25K
15.53 mi12:21:191:55:417:2718:21
7:34
+0:10
30K
18.64 mi12:45:372:19:597:3124:18
7:49
+0:15
20M
20.00 mi12:56:222:30:447:3210:45
7:55
+0:06
21M
21.00 mi13:04:402:39:027:348:18
8:18
+0:23
35K
21.75 mi13:10:272:44:497:355:47
7:44
-0:34
23M
23.00 mi13:20:162:54:387:369:49
7:50
+0:06
24M
24.00 mi13:27:573:02:197:367:41
7:41
-0:09
40K
24.85 mi13:34:383:09:007:366:41
7:49
+0:08
25.2M
25.20 mi13:37:353:11:577:372:57
8:33
+0:44
Finish
26.22 mi13:45:063:19:287:377:31
7:23
-1:10

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

7:23 /mi

Average Pace

7:37 /mi

Slowest Pace

8:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:08:13

94% of race

Time at Steady Pace

11:15

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:36 /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 mi10:48:3923:017:2523:01
7:25
#11390
10K
6.21 mi11:11:4746:097:2623:08
7:27
#11477
15K
9.32 mi11:34:511:09:137:2623:04
7:25
#11304
20K
12.43 mi11:57:551:32:177:2623:04
7:25
#10983
Half
13.11 mi12:02:581:37:207:255:03
7:24
#10968
25K
15.53 mi12:21:191:55:417:2718:21
7:34
#10865
30K
18.64 mi12:45:372:19:597:3124:18
7:49
#10665
20M
20.00 mi12:56:222:30:447:3210:45
7:55
#10569
21M
21.00 mi13:04:402:39:027:348:18
8:18
#10460
35K
21.75 mi13:10:272:44:497:355:47
7:44
#10437
23M
23.00 mi13:20:162:54:387:369:49
7:50
#10290
24M
24.00 mi13:27:573:02:197:367:41
7:41
#10192
40K
24.85 mi13:34:383:09:007:366:41
7:49
#10113
25.2M
25.20 mi13:37:353:11:577:372:57
8:33
#10077
Finish
26.22 mi13:45:063:19:287:377:31
7:23
#9981
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi113908884888411078(Top 39%)8632(Top 54%)8632(Top 384%)
10K6.21 mi3.10 mi11477-878906-228906-2211582(Top 41%)8942(Top 56%)8942(Top 398%)
15K9.32 mi3.11 mi11304+1738796+1108796+11011078(Top 39%)8632(Top 54%)8632(Top 384%)
20K12.43 mi3.11 mi10983+3218624+1728624+17210095(Top 36%)8064(Top 50%)8064(Top 359%)
Half13.11 mi0.68 mi10968+158614+108614+1010812(Top 38%)8437(Top 52%)8437(Top 375%)
25K15.53 mi2.42 mi10865+1038522+928522+9210483(Top 37%)8135(Top 51%)8135(Top 362%)
30K18.64 mi3.11 mi10665+2008347+1758347+17510102(Top 36%)7746(Top 48%)7746(Top 345%)
20M20.00 mi1.36 mi10569+968252+958252+959800(Top 35%)7430(Top 46%)7430(Top 331%)
21M21.00 mi1.00 mi10460+1098157+958157+959206(Top 32%)6936(Top 43%)6936(Top 309%)
35K21.75 mi0.75 mi10437+238131+268131+2610264(Top 36%)7498(Top 47%)7498(Top 334%)
23M23.00 mi1.25 mi10290+1478004+1278004+1278861(Top 31%)6649(Top 41%)6649(Top 296%)
24M24.00 mi1.00 mi10192+987928+767928+769004(Top 32%)6655(Top 41%)6655(Top 296%)
40K24.85 mi0.85 mi10113+797851+777851+778872(Top 31%)6454(Top 40%)6454(Top 287%)
25.2M25.20 mi0.35 mi10077+367822+297822+299072(Top 32%)6491(Top 40%)6491(Top 289%)
Finish26.22 mi1.02 mi9981+967745+777745+778325(Top 29%)6101(Top 38%)6101(Top 272%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21stories
+97ft-345ft

Overall

11078

Males

8632

M40-44

8632

5K→10K

3.1 - 6.2 mi

Top 41%
×5stories
+79ft-138ft

Overall

11582

Males

8942

M40-44

8942

10K→15K

6.2 - 9.3 mi

Top 39%
×3stories
+67ft-78ft

Overall

11078

Males

8632

M40-44

8632

15K→20K

9.3 - 12.4 mi

Top 36%
×5stories
+106ft-86ft

Overall

10095

Males

8064

M40-44

8064

20K→Half

12.4 - 13.1 mi

Top 38%
×2stories
+19ft-37ft

Overall

10812

Males

8437

M40-44

8437

Half→25K

13.1 - 15.5 mi

Top 37%
×4stories
+66ft-88ft

Overall

10483

Males

8135

M40-44

8135

25K→30K

15.5 - 18.6 mi

Top 36%
×9stories
+181ft-148ft

Overall

10102

Males

7746

M40-44

7746

30K→20M

18.6 - 20.0 mi

Top 35%
×5stories
+64ft-50ft

Overall

9800

Males

7430

M40-44

7430

20M→21M

20.0 - 21.0 mi

Top 32%
×8stories
+106ft-24ft

Overall

9206

Males

6936

M40-44

6936

21M→35K

21.0 - 21.8 mi

Top 36%
×7stories
+17ft-86ft

Overall

10264

Males

7498

M40-44

7498

35K→23M

21.8 - 23.0 mi

Top 31%
×5stories
+23ft-63ft

Overall

8861

Males

6649

M40-44

6649

23M→24M

23.0 - 24.0 mi

Top 32%
×6stories
+12ft-82ft

Overall

9004

Males

6655

M40-44

6655

24M→40K

24.0 - 24.9 mi

Top 31%
×1story
+6ft-20ft

Overall

8872

Males

6454

M40-44

6454

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

9072

Males

6491

M40-44

6491

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2stories
+22ft-21ft

Overall

8325

Males

6101

M40-44

6101

Passing Analysis

Category:
Athletes Passed
2401*
Passed By
992
Net Change
+1409
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11390
5K → 10K212299-87#11390#11477
10K → 15K27299+173#11477#11304
15K → 20K35635+321#11304#10983
20K → Half4025+15#10983#10968
Half → 25K212109+103#10968#10865
25K → 30K332132+200#10865#10665
30K → 20M15761+96#10665#10569
20M → 21M16051+109#10569#10460
21M → 35K6946+23#10460#10437
35K → 23M18235+147#10437#10290
23M → 24M12022+98#10290#10192
24M → 40K11738+79#10192#10113
40K → 25.2M4812+36#10113#10077
25.2M → Finish124*28+96#10077#9981
TOTALS2401*992+1409

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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