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BOSTON MARATHON 2025

Sebastien Chenin

Bib: 26679•M

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
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
27:52
Rank: #22286
Start → 5K
27:52 | 8:58/mi
10K· 6.21 mi
55:03
Rank: #21749 (+537)
5K → 10K
27:11 | 8:45/mi
15K· 9.32 mi
1:22:01
Rank: #21256 (+493)
10K → 15K
26:58 | 8:41/mi
20K· 12.43 mi
1:49:19
Rank: #20907 (+349)
15K → 20K
27:18 | 8:47/mi
Half· 13.11 mi
1:55:18
Rank: #20902 (+5)
20K → Half
5:59 | 8:46/mi
25K· 15.53 mi
2:16:42
Rank: #20625 (+277)
Half → 25K
21:24 | 8:50/mi
30K· 18.64 mi
2:44:42
Rank: #20069 (+556)
25K → 30K
28:00 | 9:01/mi
20M
2:56:50
Rank: #19783 (+286)
30K → 20M
12:08 | 8:56/mi
21M
3:06:03
Rank: #19483 (+300)
20M → 21M
9:13 | 9:13/mi
35K· 21.75 mi
3:12:31
Rank: #19383 (+100)
21M → 35K
6:28 | 8:39/mi
23M
3:23:32
Rank: #19144 (+239)
35K → 23M
11:01 | 8:48/mi
24M
3:32:19
Rank: #19029 (+115)
23M → 24M
8:47 | 8:47/mi
40K· 24.85 mi
3:39:47
Rank: #18853 (+176)
24M → 40K
7:28 | 8:44/mi
25.2M
3:43:05
Rank: #18795 (+58)
40K → 25.2M
3:18 | 9:34/mi
Finish· 26.22 mi
3:51:34
Rank: #18655 (+140)
25.2M → Finish
8:29 | 8:19/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:55:18
Pace8:48 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:56:16
Pace8:52 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:5627:528:5827:52
8:58
-
10K
6.21 mi12:12:0755:038:5227:11
8:45
-0:13
15K
9.32 mi12:39:051:22:018:4826:58
8:41
-0:04
20K
12.43 mi13:06:231:49:198:4827:18
8:47
+0:06
Half
13.11 mi13:12:221:55:188:485:59
8:46
-0:01
25K
15.53 mi13:33:462:16:428:4821:24
8:50
+0:04
30K
18.64 mi14:01:462:44:428:5028:00
9:01
+0:11
20M
20.00 mi14:13:542:56:508:5012:08
8:56
-0:05
21M
21.00 mi14:23:073:06:038:529:13
9:13
+0:17
35K
21.75 mi14:29:353:12:318:516:28
8:39
-0:34
23M
23.00 mi14:40:363:23:328:5111:01
8:48
+0:09
24M
24.00 mi14:49:233:32:198:518:47
8:47
-0:01
40K
24.85 mi14:56:513:39:478:517:28
8:44
-0:03
25.2M
25.20 mi15:00:093:43:058:513:18
9:34
+0:50
Finish
26.22 mi15:08:383:51:348:508:29
8:19
-1:15

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

8:19 /mi

Average Pace

8:50 /mi

Slowest Pace

9:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:39:03

95% of race

Time at Steady Pace

12:31

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:50 /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 mi11:44:5627:528:5827:52
8:58
#22286
10K
6.21 mi12:12:0755:038:5227:11
8:45
#21749
15K
9.32 mi12:39:051:22:018:4826:58
8:41
#21256
20K
12.43 mi13:06:231:49:198:4827:18
8:47
#20907
Half
13.11 mi13:12:221:55:188:485:59
8:46
#20902
25K
15.53 mi13:33:462:16:428:4821:24
8:50
#20625
30K
18.64 mi14:01:462:44:428:5028:00
9:01
#20069
20M
20.00 mi14:13:542:56:508:5012:08
8:56
#19783
21M
21.00 mi14:23:073:06:038:529:13
9:13
#19483
35K
21.75 mi14:29:353:12:318:516:28
8:39
#19383
23M
23.00 mi14:40:363:23:328:5111:01
8:48
#19144
24M
24.00 mi14:49:233:32:198:518:47
8:47
#19029
40K
24.85 mi14:56:513:39:478:517:28
8:44
#18853
25.2M
25.20 mi15:00:093:43:058:513:18
9:34
#18795
Finish
26.22 mi15:08:383:51:348:508:29
8:19
#18655
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi22286134351343520353(Top 72%)12668(Top 79%)12668(Top 225%)
10K6.21 mi3.10 mi21749+53713215+22013215+22021144(Top 74%)12975(Top 81%)12975(Top 230%)
15K9.32 mi3.11 mi21256+49313017+19813017+19820353(Top 72%)12668(Top 79%)12668(Top 225%)
20K12.43 mi3.11 mi20907+34912869+14812869+14819863(Top 70%)12396(Top 77%)12396(Top 220%)
Half13.11 mi0.68 mi20902+512865+412865+420714(Top 73%)12768(Top 79%)12768(Top 226%)
25K15.53 mi2.42 mi20625+27712730+13512730+13519053(Top 67%)11996(Top 74%)11996(Top 213%)
30K18.64 mi3.11 mi20069+55612453+27712453+27717757(Top 63%)11262(Top 70%)11262(Top 200%)
20M20.00 mi1.36 mi19783+28612305+14812305+14816410(Top 58%)10545(Top 65%)10545(Top 187%)
21M21.00 mi1.00 mi19483+30012152+15312152+15314708(Top 52%)9672(Top 60%)9672(Top 171%)
35K21.75 mi0.75 mi19383+10012088+6412088+6416319(Top 57%)10328(Top 64%)10328(Top 183%)
23M23.00 mi1.25 mi19144+23911964+12411964+12415106(Top 53%)9681(Top 60%)9681(Top 172%)
24M24.00 mi1.00 mi19029+11511893+7111893+7116215(Top 57%)10130(Top 63%)10130(Top 180%)
40K24.85 mi0.85 mi18853+17611781+11211781+11214804(Top 52%)9359(Top 58%)9359(Top 166%)
25.2M25.20 mi0.35 mi18795+5811746+3511746+3514941(Top 53%)9398(Top 58%)9398(Top 167%)
Finish26.22 mi1.02 mi18655+14011672+7411672+7415068(Top 53%)9518(Top 59%)9518(Top 169%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21stories
+97ft-345ft

Overall

20353

Males

12668

M18-39

12668

5K→10K

3.1 - 6.2 mi

Top 74%
×5stories
+79ft-138ft

Overall

21144

Males

12975

M18-39

12975

10K→15K

6.2 - 9.3 mi

Top 72%
×3stories
+67ft-78ft

Overall

20353

Males

12668

M18-39

12668

15K→20K

9.3 - 12.4 mi

Top 70%
×5stories
+106ft-86ft

Overall

19863

Males

12396

M18-39

12396

20K→Half

12.4 - 13.1 mi

Top 73%
×2stories
+19ft-37ft

Overall

20714

Males

12768

M18-39

12768

Half→25K

13.1 - 15.5 mi

Top 67%
×4stories
+66ft-88ft

Overall

19053

Males

11996

M18-39

11996

25K→30K

15.5 - 18.6 mi

Top 63%
×9stories
+181ft-148ft

Overall

17757

Males

11262

M18-39

11262

30K→20M

18.6 - 20.0 mi

Top 58%
×5stories
+64ft-50ft

Overall

16410

Males

10545

M18-39

10545

20M→21M

20.0 - 21.0 mi

Top 52%
×8stories
+106ft-24ft

Overall

14708

Males

9672

M18-39

9672

21M→35K

21.0 - 21.8 mi

Top 57%
×7stories
+17ft-86ft

Overall

16319

Males

10328

M18-39

10328

35K→23M

21.8 - 23.0 mi

Top 53%
×5stories
+23ft-63ft

Overall

15106

Males

9681

M18-39

9681

23M→24M

23.0 - 24.0 mi

Top 57%
×6stories
+12ft-82ft

Overall

16215

Males

10130

M18-39

10130

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

14804

Males

9359

M18-39

9359

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14941

Males

9398

M18-39

9398

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2stories
+22ft-21ft

Overall

15068

Males

9518

M18-39

9518

Passing Analysis

Category:
Athletes Passed
3943
Passed By
312
Net Change
+3631
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22286
5K → 10K61780+537#22286#21749
10K → 15K54451+493#21749#21256
15K → 20K38839+349#21256#20907
20K → Half3833+5#20907#20902
Half → 25K30932+277#20902#20625
25K → 30K57216+556#20625#20069
30K → 20M2904+286#20069#19783
20M → 21M3033+300#19783#19483
21M → 35K11212+100#19483#19383
35K → 23M2423+239#19383#19144
23M → 24M13318+115#19144#19029
24M → 40K1793+176#19029#18853
40K → 25.2M613+58#18853#18795
25.2M → Finish15515+140#18795#18655
TOTALS3943312+3631
📊

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