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BOSTON MARATHON 2025

Darren Chaisson

Bib: 7467•M

PE

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 13%
Gender (Male)
#0 / 16105
Top 22%
Masters (Masters Men)
#0 / 10463
Top 9%
Division (M40-44)
#0 / 2247
Top 24%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:41
Rank: #5060
Start → 5K
20:41 | 6:39/mi
10K· 6.21 mi
41:23
Rank: #5000 (+60)
5K → 10K
20:42 | 6:40/mi
15K· 9.32 mi
1:02:09
Rank: #4935 (+65)
10K → 15K
20:46 | 6:41/mi
20K· 12.43 mi
1:22:57
Rank: #4771 (+164)
15K → 20K
20:48 | 6:42/mi
Half· 13.11 mi
1:27:26
Rank: #4733 (+38)
20K → Half
4:29 | 6:34/mi
25K· 15.53 mi
1:43:35
Rank: #4528 (+205)
Half → 25K
16:09 | 6:40/mi
30K· 18.64 mi
2:04:38
Rank: #4197 (+331)
25K → 30K
21:03 | 6:47/mi
20M
2:13:57
Rank: #4091 (+106)
30K → 20M
9:19 | 6:51/mi
21M
2:21:16
Rank: #4043 (+48)
20M → 21M
7:19 | 7:19/mi
35K· 21.75 mi
2:26:16
Rank: #3999 (+44)
21M → 35K
5:00 | 6:41/mi
23M
2:35:01
Rank: #3949 (+50)
35K → 23M
8:45 | 6:59/mi
24M
2:41:47
Rank: #3896 (+53)
23M → 24M
6:46 | 6:46/mi
40K· 24.85 mi
2:47:42
Rank: #3848 (+48)
24M → 40K
5:55 | 6:55/mi
25.2M
2:50:21
Rank: #3841 (+7)
40K → 25.2M
2:39 | 7:41/mi
Finish· 26.22 mi
2:57:14
Rank: #3802 (+39)
25.2M → Finish
6:53 | 6:45/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:26
Pace6:40 /mi
2nd Half
Distance13.11 mi
Time1:29:48
Pace6:51 /mi
📊Positive Split: 2.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:0420:416:3920:41
6:39
-
10K
6.21 mi10:47:4641:236:4020:42
6:40
+0:01
15K
9.32 mi11:08:321:02:096:4020:46
6:41
+0:01
20K
12.43 mi11:29:201:22:576:4020:48
6:42
+0:01
Half
13.11 mi11:33:491:27:266:404:29
6:34
-0:08
25K
15.53 mi11:49:581:43:356:4016:09
6:40
+0:06
30K
18.64 mi12:11:012:04:386:4121:03
6:47
+0:07
20M
20.00 mi12:20:202:13:576:429:19
6:51
+0:04
21M
21.00 mi12:27:392:21:166:447:19
7:19
+0:28
35K
21.75 mi12:32:392:26:166:445:00
6:41
-0:38
23M
23.00 mi12:41:242:35:016:448:45
6:59
+0:18
24M
24.00 mi12:48:102:41:476:446:46
6:46
-0:13
40K
24.85 mi12:54:052:47:426:455:55
6:55
+0:09
25.2M
25.20 mi12:56:442:50:216:462:39
7:41
+0:46
Finish
26.22 mi13:03:372:57:146:466:53
6:45
-0:56

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

6:34 /mi

Average Pace

6:46 /mi

Slowest Pace

7:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47:16

94% of race

Time at Steady Pace

9:58

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:46 /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 mi10:27:0420:416:3920:41
6:39
#5060
10K
6.21 mi10:47:4641:236:4020:42
6:40
#5000
15K
9.32 mi11:08:321:02:096:4020:46
6:41
#4935
20K
12.43 mi11:29:201:22:576:4020:48
6:42
#4771
Half
13.11 mi11:33:491:27:266:404:29
6:34
#4733
25K
15.53 mi11:49:581:43:356:4016:09
6:40
#4528
30K
18.64 mi12:11:012:04:386:4121:03
6:47
#4197
20M
20.00 mi12:20:202:13:576:429:19
6:51
#4091
21M
21.00 mi12:27:392:21:166:447:19
7:19
#4043
35K
21.75 mi12:32:392:26:166:445:00
6:41
#3999
23M
23.00 mi12:41:242:35:016:448:45
6:59
#3949
24M
24.00 mi12:48:102:41:476:446:46
6:46
#3896
40K
24.85 mi12:54:052:47:426:455:55
6:55
#3848
25.2M
25.20 mi12:56:442:50:216:462:39
7:41
#3841
Finish
26.22 mi13:03:372:57:146:466:53
6:45
#3802
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi5060472247224921(Top 17%)4584(Top 28%)4584(Top 204%)
10K6.21 mi3.10 mi5000+604660+624660+624981(Top 18%)4647(Top 29%)4647(Top 207%)
15K9.32 mi3.11 mi4935+654604+564604+564921(Top 17%)4584(Top 28%)4584(Top 204%)
20K12.43 mi3.11 mi4771+1644451+1534451+1534376(Top 15%)4090(Top 25%)4090(Top 182%)
Half13.11 mi0.68 mi4733+384417+344417+344123(Top 15%)3862(Top 24%)3862(Top 172%)
25K15.53 mi2.42 mi4528+2054234+1834234+1833854(Top 14%)3609(Top 22%)3609(Top 161%)
30K18.64 mi3.11 mi4197+3313931+3033931+3033289(Top 12%)3077(Top 19%)3077(Top 137%)
20M20.00 mi1.36 mi4091+1063830+1013830+1013235(Top 11%)2991(Top 19%)2991(Top 133%)
21M21.00 mi1.00 mi4043+483786+443786+443676(Top 13%)3358(Top 21%)3358(Top 149%)
35K21.75 mi0.75 mi3999+443738+483738+483388(Top 12%)3087(Top 19%)3087(Top 137%)
23M23.00 mi1.25 mi3949+503682+563682+563671(Top 13%)3315(Top 21%)3315(Top 148%)
24M24.00 mi1.00 mi3896+533625+573625+573304(Top 12%)2970(Top 18%)2970(Top 132%)
40K24.85 mi0.85 mi3848+483575+503575+503426(Top 12%)3045(Top 19%)3045(Top 136%)
25.2M25.20 mi0.35 mi3841+73566+93566+94198(Top 15%)3554(Top 22%)3554(Top 158%)
Finish26.22 mi1.02 mi3802+393526+403526+404197(Top 15%)3574(Top 22%)3574(Top 159%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21stories
+97ft-345ft

Overall

4921

Males

4584

M40-44

4584

5K→10K

3.1 - 6.2 mi

Top 18%
×5stories
+79ft-138ft

Overall

4981

Males

4647

M40-44

4647

10K→15K

6.2 - 9.3 mi

Top 17%
×3stories
+67ft-78ft

Overall

4921

Males

4584

M40-44

4584

15K→20K

9.3 - 12.4 mi

Top 15%
×5stories
+106ft-86ft

Overall

4376

Males

4090

M40-44

4090

20K→Half

12.4 - 13.1 mi

Top 15%
×2stories
+19ft-37ft

Overall

4123

Males

3862

M40-44

3862

Half→25K

13.1 - 15.5 mi

Top 14%
×4stories
+66ft-88ft

Overall

3854

Males

3609

M40-44

3609

25K→30K

15.5 - 18.6 mi

Top 12%
×9stories
+181ft-148ft

Overall

3289

Males

3077

M40-44

3077

30K→20M

18.6 - 20.0 mi

Top 11%
×5stories
+64ft-50ft

Overall

3235

Males

2991

M40-44

2991

20M→21M

20.0 - 21.0 mi

Top 13%
×8stories
+106ft-24ft

Overall

3676

Males

3358

M40-44

3358

21M→35K

21.0 - 21.8 mi

Top 12%
×7stories
+17ft-86ft

Overall

3388

Males

3087

M40-44

3087

35K→23M

21.8 - 23.0 mi

Top 13%
×5stories
+23ft-63ft

Overall

3671

Males

3315

M40-44

3315

23M→24M

23.0 - 24.0 mi

Top 12%
×6stories
+12ft-82ft

Overall

3304

Males

2970

M40-44

2970

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3426

Males

3045

M40-44

3045

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1story
+13ft-16ft

Overall

4198

Males

3554

M40-44

3554

25.2M→Finish

25.2 - 26.2 mi

Top 15%
×2stories
+22ft-21ft

Overall

4197

Males

3574

M40-44

3574

Passing Analysis

Category:
Athletes Passed
1776
Passed By
518
Net Change
+1258
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5060
5K → 10K210150+60#5060#5000
10K → 15K14479+65#5000#4935
15K → 20K21349+164#4935#4771
20K → Half4810+38#4771#4733
Half → 25K22318+205#4733#4528
25K → 30K34312+331#4528#4197
30K → 20M12721+106#4197#4091
20M → 21M7527+48#4091#4043
21M → 35K6420+44#4043#3999
35K → 23M8939+50#3999#3949
23M → 24M8128+53#3949#3896
24M → 40K6517+48#3896#3848
40K → 25.2M2013+7#3848#3841
25.2M → Finish7435+39#3841#3802
TOTALS1776518+1258
📊

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