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BOSTON MARATHON 2025

Sylvain Houle

Bib: 6246•M

QC

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 13%
Gender (Male)
#0 / 16105
Top 22%
Division (M18-39)
#0 / 5642
Top 46%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
6:52/mi
21:19
↑ 97↓ 3451.5%
10K· 6.21 mi
6:39/mi
41:59
↑ 79↓ 1380.4%
15K· 9.32 mi
6:39/mi
1:02:40
↑ 67↓ 78
20K· 12.43 mi
6:42/mi
1:23:28
↑ 106↓ 860.1%
Half· 13.11 mi
6:40/mi
1:28:01
↑ 19↓ 370.5%
25K· 15.53 mi
6:42/mi
1:44:16
↑ 66↓ 880.2%
30K· 18.64 mi
6:52/mi
2:05:35
↑ 181↓ 1480.2%
20M
6:50/mi
2:14:52
↑ 64↓ 500.2%
21M
7:16/mi
2:22:08
↑ 106↓ 241.6%
35K· 21.75 mi
6:45/mi
2:27:11
↑ 17↓ 861.7%
23M
6:47/mi
2:35:41
↑ 23↓ 630.6%
24M
6:40/mi
2:42:21
↓ 821.3%
40K· 24.85 mi
6:42/mi
2:48:05
↓ 200.3%
25.2M
7:18/mi
2:50:36
↑ 13↓ 160.2%
Finish· 26.22 mi
6:25/mi
2:57:08
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:01
Pace6:43 /mi
2nd Half
Distance13.11 mi
Time1:29:07
Pace6:48 /mi
📊Positive Split: 1.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:0921:196:5221:19
6:52
-
10K
6.21 mi10:46:4941:596:4520:40
6:39
-0:13
15K
9.32 mi11:07:301:02:406:4320:41
6:39
0:00
20K
12.43 mi11:28:181:23:286:4320:48
6:42
+0:03
Half
13.11 mi11:32:511:28:016:434:33
6:40
-0:02
25K
15.53 mi11:49:061:44:166:4316:15
6:42
+0:02
30K
18.64 mi12:10:252:05:356:4421:19
6:52
+0:10
20M
20.00 mi12:19:422:14:526:459:17
6:50
-0:02
21M
21.00 mi12:26:582:22:086:467:16
7:16
+0:26
35K
21.75 mi12:32:012:27:116:465:03
6:45
-0:31
23M
23.00 mi12:40:312:35:416:468:30
6:47
+0:02
24M
24.00 mi12:47:112:42:216:466:40
6:40
-0:07
40K
24.85 mi12:52:552:48:056:465:44
6:42
+0:02
25.2M
25.20 mi12:55:262:50:366:462:31
7:18
+0:36
Finish
26.22 mi13:01:582:57:086:466:32
6:25
-0:53

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

6:25 /mi

Average Pace

6:46 /mi

Slowest Pace

7:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47:21

94% of race

Time at Steady Pace

9:47

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:45 /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 mi10:26:0921:196:5221:19
6:52
#6756
10K
6.21 mi10:46:4941:596:4520:40
6:39
#5884
15K
9.32 mi11:07:301:02:406:4320:41
6:39
#5483
20K
12.43 mi11:28:181:23:286:4320:48
6:42
#5131
Half
13.11 mi11:32:511:28:016:434:33
6:40
#5116
25K
15.53 mi11:49:061:44:166:4316:15
6:42
#4905
30K
18.64 mi12:10:252:05:356:4421:19
6:52
#4621
20M
20.00 mi12:19:422:14:526:459:17
6:50
#4453
21M
21.00 mi12:26:582:22:086:467:16
7:16
#4340
35K
21.75 mi12:32:012:27:116:465:03
6:45
#4306
23M
23.00 mi12:40:312:35:416:468:30
6:47
#4148
24M
24.00 mi12:47:112:42:216:466:40
6:40
#4052
40K
24.85 mi12:52:552:48:056:465:44
6:42
#3949
25.2M
25.20 mi12:55:262:50:366:462:31
7:18
#3912
Finish
26.22 mi13:01:582:57:086:466:32
6:25
#3771
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi6756612161214697(Top 17%)4390(Top 27%)4390(Top 78%)
10K6.21 mi3.10 mi5884+8725409+7125409+7124878(Top 17%)4554(Top 28%)4554(Top 81%)
15K9.32 mi3.11 mi5483+4015068+3415068+3414697(Top 17%)4390(Top 27%)4390(Top 78%)
20K12.43 mi3.11 mi5131+3524760+3084760+3084375(Top 15%)4089(Top 25%)4089(Top 72%)
Half13.11 mi0.68 mi5116+154748+124748+124927(Top 17%)4556(Top 28%)4556(Top 81%)
25K15.53 mi2.42 mi4905+2114557+1914557+1914131(Top 15%)3843(Top 24%)3843(Top 68%)
30K18.64 mi3.11 mi4621+2844297+2604297+2603812(Top 13%)3520(Top 22%)3520(Top 62%)
20M20.00 mi1.36 mi4453+1684145+1524145+1523118(Top 11%)2894(Top 18%)2894(Top 51%)
21M21.00 mi1.00 mi4340+1134035+1104035+1103442(Top 12%)3154(Top 20%)3154(Top 56%)
35K21.75 mi0.75 mi4306+344002+334002+333774(Top 13%)3396(Top 21%)3396(Top 60%)
23M23.00 mi1.25 mi4148+1583856+1463856+1462636(Top 9%)2428(Top 15%)2428(Top 43%)
24M24.00 mi1.00 mi4052+963764+923764+922784(Top 10%)2551(Top 16%)2551(Top 45%)
40K24.85 mi0.85 mi3949+1033668+963668+962382(Top 8%)2179(Top 14%)2179(Top 39%)
25.2M25.20 mi0.35 mi3912+373631+373631+372494(Top 9%)2228(Top 14%)2228(Top 39%)
Finish26.22 mi1.02 mi3771+1413502+1293502+1292359(Top 8%)2151(Top 13%)2151(Top 38%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21story building
+97ft-345ft

Overall

4697

Males

4390

M18-39

4390

5K→10K

3.1 - 6.2 mi

Top 17%
×5story building
+79ft-138ft

Overall

4878

Males

4554

M18-39

4554

10K→15K

6.2 - 9.3 mi

Top 17%
×3story building
+67ft-78ft

Overall

4697

Males

4390

M18-39

4390

15K→20K

9.3 - 12.4 mi

Top 15%
×5story building
+106ft-86ft

Overall

4375

Males

4089

M18-39

4089

20K→Half

12.4 - 13.1 mi

Top 17%
×2story building
+19ft-37ft

Overall

4927

Males

4556

M18-39

4556

Half→25K

13.1 - 15.5 mi

Top 15%
×4story building
+66ft-88ft

Overall

4131

Males

3843

M18-39

3843

25K→30K

15.5 - 18.6 mi

Top 13%
×9story building
+181ft-148ft

Overall

3812

Males

3520

M18-39

3520

30K→20M

18.6 - 20.0 mi

Top 11%
×5story building
+64ft-50ft

Overall

3118

Males

2894

M18-39

2894

20M→21M

20.0 - 21.0 mi

Top 12%
×8story building
+106ft-24ft

Overall

3442

Males

3154

M18-39

3154

21M→35K

21.0 - 21.8 mi

Top 13%
×7story building
+17ft-86ft

Overall

3774

Males

3396

M18-39

3396

35K→23M

21.8 - 23.0 mi

Top 9%
×5story building
+23ft-63ft

Overall

2636

Males

2428

M18-39

2428

23M→24M

23.0 - 24.0 mi

Top 10%
×6story building
+12ft-82ft

Overall

2784

Males

2551

M18-39

2551

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2382

Males

2179

M18-39

2179

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2494

Males

2228

M18-39

2228

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2story building
+22ft-21ft

Overall

2359

Males

2151

M18-39

2151

Passing Analysis

Category:
Athletes Passed
3155
Passed By
170
Net Change
+2985
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6756
5K → 10K8808+872#6756#5884
10K → 15K4109+401#5884#5483
15K → 20K3597+352#5483#5131
20K → Half3318+15#5131#5116
Half → 25K22211+211#5116#4905
25K → 30K32238+284#4905#4621
30K → 20M1757+168#4621#4453
20M → 21M13320+113#4453#4340
21M → 35K5925+34#4340#4306
35K → 23M1657+158#4306#4148
23M → 24M1004+96#4148#4052
24M → 40K1074+103#4052#3949
40K → 25.2M425+37#3949#3912
25.2M → Finish1487+141#3912#3771
TOTALS3155170+2985
📊

Passing Visuals

Category:
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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