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BOSTON MARATHON 2025

Sylvain Roy

Bib: 11661•M

QC

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 28%
Gender (Male)
#0 / 16105
Top 41%
Masters (Masters Men)
#0 / 10463
Top 29%
Division (M45-49)
#0 / 2386
Top 41%
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
7:21/mi
22:50
↑ 97↓ 3451.5%
10K· 6.21 mi
7:14/mi
45:19
↑ 79↓ 1380.4%
15K· 9.32 mi
7:22/mi
1:08:12
↑ 67↓ 78
20K· 12.43 mi
7:13/mi
1:30:36
↑ 106↓ 860.1%
Half· 13.11 mi
7:09/mi
1:35:29
↑ 19↓ 370.5%
25K· 15.53 mi
7:17/mi
1:53:09
↑ 66↓ 880.2%
30K· 18.64 mi
7:27/mi
2:16:19
↑ 181↓ 1480.2%
20M
7:21/mi
2:26:18
↑ 64↓ 500.2%
21M
7:46/mi
2:34:04
↑ 106↓ 241.6%
35K· 21.75 mi
7:13/mi
2:39:28
↑ 17↓ 861.7%
23M
7:42/mi
2:49:06
↑ 23↓ 630.6%
24M
7:23/mi
2:56:29
↓ 821.3%
40K· 24.85 mi
7:45/mi
3:03:07
↓ 200.3%
25.2M
8:10/mi
3:05:56
↑ 13↓ 160.2%
Finish· 26.22 mi
7:10/mi
3:13:14
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:29
Pace7:17 /mi
2nd Half
Distance13.11 mi
Time1:37:45
Pace7:27 /mi
📊Positive Split: 2.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:0322:507:2122:50
7:21
-
10K
6.21 mi11:12:3245:197:1822:29
7:14
-0:07
15K
9.32 mi11:35:251:08:127:1922:53
7:22
+0:08
20K
12.43 mi11:57:491:30:367:1722:24
7:13
-0:09
Half
13.11 mi12:02:421:35:297:174:53
7:09
-0:04
25K
15.53 mi12:20:221:53:097:1717:40
7:17
+0:08
30K
18.64 mi12:43:322:16:197:1923:10
7:27
+0:10
20M
20.00 mi12:53:312:26:187:199:59
7:21
-0:06
21M
21.00 mi13:01:172:34:047:207:46
7:46
+0:25
35K
21.75 mi13:06:412:39:287:205:24
7:13
-0:33
23M
23.00 mi13:16:192:49:067:219:38
7:42
+0:29
24M
24.00 mi13:23:422:56:297:217:23
7:23
-0:19
40K
24.85 mi13:30:203:03:077:226:38
7:45
+0:22
25.2M
25.20 mi13:33:093:05:567:232:49
8:10
+0:25
Finish
26.22 mi13:40:273:13:147:237:18
7:10
-1:00

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

7:09 /mi

Average Pace

7:23 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:10:25

99% of race

Time at Steady Pace

2:49

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:22 /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 mi10:50:0322:507:2122:50
7:21
#10831
10K
6.21 mi11:12:3245:197:1822:29
7:14
#10272
15K
9.32 mi11:35:251:08:127:1922:53
7:22
#10352
20K
12.43 mi11:57:491:30:367:1722:24
7:13
#9777
Half
13.11 mi12:02:421:35:297:174:53
7:09
#9726
25K
15.53 mi12:20:221:53:097:1717:40
7:17
#9430
30K
18.64 mi12:43:322:16:197:1923:10
7:27
#8950
20M
20.00 mi12:53:312:26:187:199:59
7:21
#8654
21M
21.00 mi13:01:172:34:047:207:46
7:46
#8435
35K
21.75 mi13:06:412:39:287:205:24
7:13
#8327
23M
23.00 mi13:16:192:49:067:219:38
7:42
#8243
24M
24.00 mi13:23:422:56:297:217:23
7:23
#8137
40K
24.85 mi13:30:203:03:077:226:38
7:45
#8121
25.2M
25.20 mi13:33:093:05:567:232:49
8:10
#8083
Finish
26.22 mi13:40:273:13:147:237:18
7:10
#7976
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi108318602860210517(Top 37%)8356(Top 52%)8356(Top 350%)
10K6.21 mi3.10 mi10272+5598303+2998303+2999794(Top 34%)8028(Top 50%)8028(Top 336%)
15K9.32 mi3.11 mi10352-808326-238326-2310517(Top 37%)8356(Top 52%)8356(Top 350%)
20K12.43 mi3.11 mi9777+5757985+3417985+3418282(Top 29%)7036(Top 44%)7036(Top 295%)
Half13.11 mi0.68 mi9726+517953+327953+328675(Top 31%)7287(Top 45%)7287(Top 305%)
25K15.53 mi2.42 mi9430+2967757+1967757+1968252(Top 29%)6913(Top 43%)6913(Top 290%)
30K18.64 mi3.11 mi8950+4807435+3227435+3227431(Top 26%)6236(Top 39%)6236(Top 261%)
20M20.00 mi1.36 mi8654+2967232+2037232+2036070(Top 21%)5251(Top 33%)5251(Top 220%)
21M21.00 mi1.00 mi8435+2197069+1637069+1636002(Top 21%)5073(Top 31%)5073(Top 213%)
35K21.75 mi0.75 mi8327+1086989+806989+806719(Top 24%)5538(Top 34%)5538(Top 232%)
23M23.00 mi1.25 mi8243+846896+936896+937850(Top 28%)6072(Top 38%)6072(Top 254%)
24M24.00 mi1.00 mi8137+1066791+1056791+1056934(Top 24%)5487(Top 34%)5487(Top 230%)
40K24.85 mi0.85 mi8121+166752+396752+398451(Top 30%)6225(Top 39%)6225(Top 261%)
25.2M25.20 mi0.35 mi8083+386717+356717+356846(Top 24%)5265(Top 33%)5265(Top 221%)
Finish26.22 mi1.02 mi7976+1076617+1006617+1006799(Top 24%)5209(Top 32%)5209(Top 218%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21story building
+97ft-345ft

Overall

10517

Males

8356

M45-49

8356

5K→10K

3.1 - 6.2 mi

Top 34%
×5story building
+79ft-138ft

Overall

9794

Males

8028

M45-49

8028

10K→15K

6.2 - 9.3 mi

Top 37%
×3story building
+67ft-78ft

Overall

10517

Males

8356

M45-49

8356

15K→20K

9.3 - 12.4 mi

Top 29%
×5story building
+106ft-86ft

Overall

8282

Males

7036

M45-49

7036

20K→Half

12.4 - 13.1 mi

Top 31%
×2story building
+19ft-37ft

Overall

8675

Males

7287

M45-49

7287

Half→25K

13.1 - 15.5 mi

Top 29%
×4story building
+66ft-88ft

Overall

8252

Males

6913

M45-49

6913

25K→30K

15.5 - 18.6 mi

Top 26%
×9story building
+181ft-148ft

Overall

7431

Males

6236

M45-49

6236

30K→20M

18.6 - 20.0 mi

Top 21%
×5story building
+64ft-50ft

Overall

6070

Males

5251

M45-49

5251

20M→21M

20.0 - 21.0 mi

Top 21%
×8story building
+106ft-24ft

Overall

6002

Males

5073

M45-49

5073

21M→35K

21.0 - 21.8 mi

Top 24%
×7story building
+17ft-86ft

Overall

6719

Males

5538

M45-49

5538

35K→23M

21.8 - 23.0 mi

Top 28%
×5story building
+23ft-63ft

Overall

7850

Males

6072

M45-49

6072

23M→24M

23.0 - 24.0 mi

Top 24%
×6story building
+12ft-82ft

Overall

6934

Males

5487

M45-49

5487

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

8451

Males

6225

M45-49

6225

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6846

Males

5265

M45-49

5265

25.2M→Finish

25.2 - 26.2 mi

Top 24%
×2story building
+22ft-21ft

Overall

6799

Males

5209

M45-49

5209

Passing Analysis

Category:
Athletes Passed
3429*
Passed By
574
Net Change
+2855
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10831
5K → 10K63071+559#10831#10272
10K → 15K145225-80#10272#10352
15K → 20K584*9+575#10352#9777
20K → Half6211+51#9777#9726
Half → 25K31923+296#9726#9430
25K → 30K50525+480#9430#8950
30K → 20M2993+296#8950#8654
20M → 21M23314+219#8654#8435
21M → 35K1179+108#8435#8327
35K → 23M15167+84#8327#8243
23M → 24M12923+106#8243#8137
24M → 40K7155+16#8137#8121
40K → 25.2M5113+38#8121#8083
25.2M → Finish13326+107#8083#7976
TOTALS3429*574+2855

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

📊

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