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BOSTON MARATHON 2025

Chris Lamb

Bib: 8840•M

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 16%
Gender (Male)
#0 / 16105
Top 27%
Masters (Masters Men)
#0 / 10463
Top 13%
Division (M40-44)
#0 / 2247
Top 33%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:21
Rank: #6836
Start → 5K
21:21 | 6:52/mi
10K· 6.21 mi
42:21
Rank: #6443 (+393)
5K → 10K
21:00 | 6:46/mi
15K· 9.32 mi
1:03:11
Rank: #5981 (+462)
10K → 15K
20:50 | 6:42/mi
20K· 12.43 mi
1:23:58
Rank: #5531 (+450)
15K → 20K
20:47 | 6:41/mi
Half· 13.11 mi
1:28:30
Rank: #5487 (+44)
20K → Half
4:32 | 6:39/mi
25K· 15.53 mi
1:44:46
Rank: #5214 (+273)
Half → 25K
16:16 | 6:43/mi
30K· 18.64 mi
2:06:13
Rank: #4922 (+292)
25K → 30K
21:27 | 6:54/mi
20M
2:15:53
Rank: #4876 (+46)
30K → 20M
9:40 | 7:07/mi
21M
2:23:31
Rank: #4886 (-10)
20M → 21M
7:38 | 7:38/mi
35K· 21.75 mi
2:28:35
Rank: #4822 (+64)
21M → 35K
5:04 | 6:46/mi
23M
2:37:25
Rank: #4736 (+86)
35K → 23M
8:50 | 7:03/mi
24M
2:44:20
Rank: #4696 (+40)
23M → 24M
6:55 | 6:55/mi
40K· 24.85 mi
2:50:29
Rank: #4697 (-1)
24M → 40K
6:09 | 7:12/mi
25.2M
2:53:10
Rank: #4689 (+8)
40K → 25.2M
2:41 | 7:47/mi
Finish· 26.22 mi
2:59:55
Rank: #4668 (+21)
25.2M → Finish
6:45 | 6:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:30
Pace6:45 /mi
2nd Half
Distance13.11 mi
Time1:31:25
Pace6:58 /mi
📊Positive Split: 3.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:4221:216:5221:21
6:52
-
10K
6.21 mi11:07:4242:216:4921:00
6:46
-0:06
15K
9.32 mi11:28:321:03:116:4720:50
6:42
-0:04
20K
12.43 mi11:49:191:23:586:4520:47
6:41
-0:01
Half
13.11 mi11:53:511:28:306:454:32
6:39
-0:02
25K
15.53 mi12:10:071:44:466:4516:16
6:43
+0:04
30K
18.64 mi12:31:342:06:136:4621:27
6:54
+0:11
20M
20.00 mi12:41:142:15:536:489:40
7:07
+0:13
21M
21.00 mi12:48:522:23:316:507:38
7:38
+0:31
35K
21.75 mi12:53:562:28:356:505:04
6:46
-0:52
23M
23.00 mi13:02:462:37:256:518:50
7:03
+0:17
24M
24.00 mi13:09:412:44:206:516:55
6:55
-0:08
40K
24.85 mi13:15:502:50:296:526:09
7:12
+0:17
25.2M
25.20 mi13:18:312:53:106:522:41
7:47
+0:35
Finish
26.22 mi13:25:162:59:556:526:45
6:37
-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

6:37 /mi

Average Pace

6:52 /mi

Slowest Pace

7:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:49:36

94% of race

Time at Steady Pace

10:19

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:52 /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 mi10:46:4221:216:5221:21
6:52
#6836
10K
6.21 mi11:07:4242:216:4921:00
6:46
#6443
15K
9.32 mi11:28:321:03:116:4720:50
6:42
#5981
20K
12.43 mi11:49:191:23:586:4520:47
6:41
#5531
Half
13.11 mi11:53:511:28:306:454:32
6:39
#5487
25K
15.53 mi12:10:071:44:466:4516:16
6:43
#5214
30K
18.64 mi12:31:342:06:136:4621:27
6:54
#4922
20M
20.00 mi12:41:142:15:536:489:40
7:07
#4876
21M
21.00 mi12:48:522:23:316:507:38
7:38
#4886
35K
21.75 mi12:53:562:28:356:505:04
6:46
#4822
23M
23.00 mi13:02:462:37:256:518:50
7:03
#4736
24M
24.00 mi13:09:412:44:206:516:55
6:55
#4696
40K
24.85 mi13:15:502:50:296:526:09
7:12
#4697
25.2M
25.20 mi13:18:312:53:106:522:41
7:47
#4689
Finish
26.22 mi13:25:162:59:556:526:45
6:37
#4668
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi6836617961795114(Top 18%)4739(Top 29%)4739(Top 211%)
10K6.21 mi3.10 mi6443+3935871+3085871+3085925(Top 21%)5419(Top 34%)5419(Top 241%)
15K9.32 mi3.11 mi5981+4625481+3905481+3905114(Top 18%)4739(Top 29%)4739(Top 211%)
20K12.43 mi3.11 mi5531+4505096+3855096+3854332(Top 15%)4050(Top 25%)4050(Top 180%)
Half13.11 mi0.68 mi5487+445057+395057+394749(Top 17%)4409(Top 27%)4409(Top 196%)
25K15.53 mi2.42 mi5214+2734822+2354822+2354203(Top 15%)3905(Top 24%)3905(Top 174%)
30K18.64 mi3.11 mi4922+2924551+2714551+2714102(Top 14%)3773(Top 23%)3773(Top 168%)
20M20.00 mi1.36 mi4876+464507+444507+444718(Top 17%)4259(Top 26%)4259(Top 190%)
21M21.00 mi1.00 mi4886-104506+14506+15262(Top 19%)4561(Top 28%)4561(Top 203%)
35K21.75 mi0.75 mi4822+644446+604446+603919(Top 14%)3519(Top 22%)3519(Top 157%)
23M23.00 mi1.25 mi4736+864357+894357+894061(Top 14%)3620(Top 22%)3620(Top 161%)
24M24.00 mi1.00 mi4696+404314+434314+434163(Top 15%)3664(Top 23%)3664(Top 163%)
40K24.85 mi0.85 mi4697-14311+34311+34977(Top 18%)4187(Top 26%)4187(Top 186%)
25.2M25.20 mi0.35 mi4689+84297+144297+144699(Top 17%)3897(Top 24%)3897(Top 173%)
Finish26.22 mi1.02 mi4668+214277+204277+203452(Top 12%)3021(Top 19%)3021(Top 134%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21stories
+97ft-345ft

Overall

5114

Males

4739

M40-44

4739

5K→10K

3.1 - 6.2 mi

Top 21%
×5stories
+79ft-138ft

Overall

5925

Males

5419

M40-44

5419

10K→15K

6.2 - 9.3 mi

Top 18%
×3stories
+67ft-78ft

Overall

5114

Males

4739

M40-44

4739

15K→20K

9.3 - 12.4 mi

Top 15%
×5stories
+106ft-86ft

Overall

4332

Males

4050

M40-44

4050

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4749

Males

4409

M40-44

4409

Half→25K

13.1 - 15.5 mi

Top 15%
×4stories
+66ft-88ft

Overall

4203

Males

3905

M40-44

3905

25K→30K

15.5 - 18.6 mi

Top 14%
×9stories
+181ft-148ft

Overall

4102

Males

3773

M40-44

3773

30K→20M

18.6 - 20.0 mi

Top 17%
×5stories
+64ft-50ft

Overall

4718

Males

4259

M40-44

4259

20M→21M

20.0 - 21.0 mi

Top 19%
×8stories
+106ft-24ft

Overall

5262

Males

4561

M40-44

4561

21M→35K

21.0 - 21.8 mi

Top 14%
×7stories
+17ft-86ft

Overall

3919

Males

3519

M40-44

3519

35K→23M

21.8 - 23.0 mi

Top 14%
×5stories
+23ft-63ft

Overall

4061

Males

3620

M40-44

3620

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

4163

Males

3664

M40-44

3664

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

4977

Males

4187

M40-44

4187

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1story
+13ft-16ft

Overall

4699

Males

3897

M40-44

3897

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2stories
+22ft-21ft

Overall

3452

Males

3021

M40-44

3021

Passing Analysis

Category:
Athletes Passed
2601
Passed By
433
Net Change
+2168
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6836
5K → 10K43946+393#6836#6443
10K → 15K47614+462#6443#5981
15K → 20K4588+450#5981#5531
20K → Half506+44#5531#5487
Half → 25K28310+273#5487#5214
25K → 30K32129+292#5214#4922
30K → 20M9145+46#4922#4876
20M → 21M5969-10#4876#4886
21M → 35K8016+64#4886#4822
35K → 23M12943+86#4822#4736
23M → 24M7333+40#4736#4696
24M → 40K5758-1#4696#4697
40K → 25.2M3426+8#4697#4689
25.2M → Finish5130+21#4689#4668
TOTALS2601433+2168
📊

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