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BOSTON MARATHON 2025

Sylvain Emond

Bib: 1276•M

QC

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 6%
Gender (Male)
#0 / 16105
Top 10%
Masters (Masters Men)
#0 / 10463
Top 2%
Division (M45-49)
#0 / 2386
Top 2%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:18
Rank: #1932
Start → 5K
19:18 | 6:13/mi
10K· 6.21 mi
38:39
Rank: #1985 (-53)
5K → 10K
19:21 | 6:14/mi
15K· 9.32 mi
58:05
Rank: #2007 (-22)
10K → 15K
19:26 | 6:15/mi
20K· 12.43 mi
1:17:42
Rank: #2007
15K → 20K
19:37 | 6:19/mi
Half· 13.11 mi
1:21:56
Rank: #2002 (+5)
20K → Half
4:14 | 6:12/mi
25K· 15.53 mi
1:37:12
Rank: #1968 (+34)
Half → 25K
15:16 | 6:18/mi
30K· 18.64 mi
1:57:11
Rank: #1882 (+86)
25K → 30K
19:59 | 6:26/mi
20M
2:06:02
Rank: #1842 (+40)
30K → 20M
8:51 | 6:31/mi
21M
2:12:59
Rank: #1817 (+25)
20M → 21M
6:57 | 6:57/mi
35K· 21.75 mi
2:17:42
Rank: #1800 (+17)
21M → 35K
4:43 | 6:18/mi
23M
2:25:52
Rank: #1746 (+54)
35K → 23M
8:10 | 6:31/mi
24M
2:32:13
Rank: #1699 (+47)
23M → 24M
6:21 | 6:21/mi
40K· 24.85 mi
2:37:50
Rank: #1677 (+22)
24M → 40K
5:37 | 6:34/mi
25.2M
2:40:16
Rank: #1668 (+9)
40K → 25.2M
2:26 | 7:03/mi
Finish· 26.22 mi
2:46:40
Rank: #1652 (+16)
25.2M → Finish
6:24 | 6:17/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:21:56
Pace6:15 /mi
2nd Half
Distance13.11 mi
Time1:24:44
Pace6:28 /mi
📊Positive Split: 3.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:0119:186:1319:18
6:13
-
10K
6.21 mi10:39:2238:396:1319:21
6:14
+0:01
15K
9.32 mi10:58:4858:056:1419:26
6:15
+0:01
20K
12.43 mi11:18:251:17:426:1519:37
6:19
+0:04
Half
13.11 mi11:22:391:21:566:154:14
6:12
-0:07
25K
15.53 mi11:37:551:37:126:1515:16
6:18
+0:06
30K
18.64 mi11:57:541:57:116:1719:59
6:26
+0:08
20M
20.00 mi12:06:452:06:026:188:51
6:31
+0:05
21M
21.00 mi12:13:422:12:596:206:57
6:57
+0:26
35K
21.75 mi12:18:252:17:426:204:43
6:18
-0:39
23M
23.00 mi12:26:352:25:526:218:10
6:31
+0:13
24M
24.00 mi12:32:562:32:136:216:21
6:21
-0:10
40K
24.85 mi12:38:332:37:506:215:37
6:34
+0:13
25.2M
25.20 mi12:40:592:40:166:222:26
7:03
+0:29
Finish
26.22 mi12:47:232:46:406:226:24
6:17
-0:46

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

6:12 /mi

Average Pace

6:22 /mi

Slowest Pace

7:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:37:17

94% of race

Time at Steady Pace

9:23

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:21 /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 mi10:20:0119:186:1319:18
6:13
#1932
10K
6.21 mi10:39:2238:396:1319:21
6:14
#1985
15K
9.32 mi10:58:4858:056:1419:26
6:15
#2007
20K
12.43 mi11:18:251:17:426:1519:37
6:19
#2007
Half
13.11 mi11:22:391:21:566:154:14
6:12
#2002
25K
15.53 mi11:37:551:37:126:1515:16
6:18
#1968
30K
18.64 mi11:57:541:57:116:1719:59
6:26
#1882
20M
20.00 mi12:06:452:06:026:188:51
6:31
#1842
21M
21.00 mi12:13:422:12:596:206:57
6:57
#1817
35K
21.75 mi12:18:252:17:426:204:43
6:18
#1800
23M
23.00 mi12:26:352:25:526:218:10
6:31
#1746
24M
24.00 mi12:32:562:32:136:216:21
6:21
#1699
40K
24.85 mi12:38:332:37:506:215:37
6:34
#1677
25.2M
25.20 mi12:40:592:40:166:222:26
7:03
#1668
Finish
26.22 mi12:47:232:46:406:226:24
6:17
#1652
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi1932183818382127(Top 7%)2029(Top 13%)2029(Top 85%)
10K6.21 mi3.10 mi1985-531891-531891-532049(Top 7%)1952(Top 12%)1952(Top 82%)
15K9.32 mi3.11 mi2007-221911-201911-202127(Top 7%)2029(Top 13%)2029(Top 85%)
20K12.43 mi3.11 mi20071915-41915-42073(Top 7%)1977(Top 12%)1977(Top 83%)
Half13.11 mi0.68 mi2002+51912+31912+32026(Top 7%)1935(Top 12%)1935(Top 81%)
25K15.53 mi2.42 mi1968+341877+351877+351844(Top 6%)1752(Top 11%)1752(Top 73%)
30K18.64 mi3.11 mi1882+861793+841793+841687(Top 6%)1600(Top 10%)1600(Top 67%)
20M20.00 mi1.36 mi1842+401752+411752+411679(Top 6%)1587(Top 10%)1587(Top 67%)
21M21.00 mi1.00 mi1817+251727+251727+252068(Top 7%)1943(Top 12%)1943(Top 81%)
35K21.75 mi0.75 mi1800+171710+171710+171648(Top 6%)1548(Top 10%)1548(Top 65%)
23M23.00 mi1.25 mi1746+541656+541656+541543(Top 5%)1447(Top 9%)1447(Top 61%)
24M24.00 mi1.00 mi1699+471609+471609+471494(Top 5%)1398(Top 9%)1398(Top 59%)
40K24.85 mi0.85 mi1677+221587+221587+221870(Top 7%)1724(Top 11%)1724(Top 72%)
25.2M25.20 mi0.35 mi1668+91579+81579+81674(Top 6%)1531(Top 10%)1531(Top 64%)
Finish26.22 mi1.02 mi1652+161563+161563+161821(Top 6%)1684(Top 10%)1684(Top 71%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21stories
+97ft-345ft

Overall

2127

Males

2029

M45-49

2029

5K→10K

3.1 - 6.2 mi

Top 7%
×5stories
+79ft-138ft

Overall

2049

Males

1952

M45-49

1952

10K→15K

6.2 - 9.3 mi

Top 7%
×3stories
+67ft-78ft

Overall

2127

Males

2029

M45-49

2029

15K→20K

9.3 - 12.4 mi

Top 7%
×5stories
+106ft-86ft

Overall

2073

Males

1977

M45-49

1977

20K→Half

12.4 - 13.1 mi

Top 7%
×2stories
+19ft-37ft

Overall

2026

Males

1935

M45-49

1935

Half→25K

13.1 - 15.5 mi

Top 6%
×4stories
+66ft-88ft

Overall

1844

Males

1752

M45-49

1752

25K→30K

15.5 - 18.6 mi

Top 6%
×9stories
+181ft-148ft

Overall

1687

Males

1600

M45-49

1600

30K→20M

18.6 - 20.0 mi

Top 6%
×5stories
+64ft-50ft

Overall

1679

Males

1587

M45-49

1587

20M→21M

20.0 - 21.0 mi

Top 7%
×8stories
+106ft-24ft

Overall

2068

Males

1943

M45-49

1943

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1648

Males

1548

M45-49

1548

35K→23M

21.8 - 23.0 mi

Top 5%
×5stories
+23ft-63ft

Overall

1543

Males

1447

M45-49

1447

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1494

Males

1398

M45-49

1398

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

1870

Males

1724

M45-49

1724

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1674

Males

1531

M45-49

1531

25.2M→Finish

25.2 - 26.2 mi

Top 6%
×2stories
+22ft-21ft

Overall

1821

Males

1684

M45-49

1684

Passing Analysis

Category:
Athletes Passed
764
Passed By
484
Net Change
+280
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1932
5K → 10K91144-53#1932#1985
10K → 15K5577-22#1985#2007
15K → 20K69690#2007#2007
20K → Half127+5#2007#2002
Half → 25K6329+34#2002#1968
25K → 30K12034+86#1968#1882
30K → 20M5919+40#1882#1842
20M → 21M4823+25#1842#1817
21M → 35K3013+17#1817#1800
35K → 23M6511+54#1800#1746
23M → 24M5710+47#1746#1699
24M → 40K3917+22#1699#1677
40K → 25.2M189+9#1677#1668
25.2M → Finish3822+16#1668#1652
TOTALS764484+280
📊

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