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BOSTON MARATHON 2025

Sylvain Thomas

Bib: 32095•M

MA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:05
Rank: #22577
Start → 5K
28:05 | 9:02/mi
10K· 6.21 mi
55:07
Rank: #21802 (+775)
5K → 10K
27:02 | 8:42/mi
15K· 9.32 mi
1:21:58
Rank: #21223 (+579)
10K → 15K
26:51 | 8:39/mi
20K· 12.43 mi
1:49:18
Rank: #20898 (+325)
15K → 20K
27:20 | 8:48/mi
Half· 13.11 mi
1:55:20
Rank: #20914 (-16)
20K → Half
6:02 | 8:51/mi
25K· 15.53 mi
2:17:06
Rank: #20740 (+174)
Half → 25K
21:46 | 8:59/mi
30K· 18.64 mi
2:46:20
Rank: #20491 (+249)
25K → 30K
29:14 | 9:25/mi
20M
2:59:27
Rank: #20426 (+65)
30K → 20M
13:07 | 9:39/mi
21M
3:09:28
Rank: #20300 (+126)
20M → 21M
10:01 | 10:01/mi
35K· 21.75 mi
3:16:32
Rank: #20286 (+14)
21M → 35K
7:04 | 9:27/mi
23M
3:28:07
Rank: #20136 (+150)
35K → 23M
11:35 | 9:15/mi
24M
3:36:50
Rank: #19974 (+162)
23M → 24M
8:43 | 8:43/mi
40K· 24.85 mi
3:44:33
Rank: #19839 (+135)
24M → 40K
7:43 | 9:02/mi
25.2M
3:47:49
Rank: #19767 (+72)
40K → 25.2M
3:16 | 9:28/mi
Finish· 26.22 mi
3:56:19
Rank: #19619 (+148)
25.2M → Finish
8:30 | 8:20/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:20
Pace8:48 /mi
2nd Half
Distance13.11 mi
Time2:00:59
Pace9:14 /mi
📊Positive Split: 4.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:3628:059:0228:05
9:02
-
10K
6.21 mi12:19:3855:078:5227:02
8:42
-0:20
15K
9.32 mi12:46:291:21:588:4826:51
8:39
-0:03
20K
12.43 mi13:13:491:49:188:4827:20
8:48
+0:09
Half
13.11 mi13:19:511:55:208:486:02
8:51
+0:03
25K
15.53 mi13:41:372:17:068:5021:46
8:59
+0:08
30K
18.64 mi14:10:512:46:208:5529:14
9:25
+0:26
20M
20.00 mi14:23:582:59:278:5813:07
9:39
+0:14
21M
21.00 mi14:33:593:09:289:0110:01
10:01
+0:22
35K
21.75 mi14:41:033:16:329:027:04
9:27
-0:34
23M
23.00 mi14:52:383:28:079:0311:35
9:15
-0:12
24M
24.00 mi15:01:213:36:509:028:43
8:43
-0:32
40K
24.85 mi15:09:043:44:339:027:43
9:02
+0:19
25.2M
25.20 mi15:12:203:47:499:023:16
9:28
+0:26
Finish
26.22 mi15:20:503:56:199:018:30
8:20
-1:08

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

8:20 /mi

Average Pace

9:01 /mi

Slowest Pace

10:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:38:26

42% of race

Time at Steady Pace

1:03:36

27% of race

Time at Slower Pace

1:14:17

31% of race

Average Pace: 9:01 /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 mi11:52:3628:059:0228:05
9:02
#22577
10K
6.21 mi12:19:3855:078:5227:02
8:42
#21802
15K
9.32 mi12:46:291:21:588:4826:51
8:39
#21223
20K
12.43 mi13:13:491:49:188:4827:20
8:48
#20898
Half
13.11 mi13:19:511:55:208:486:02
8:51
#20914
25K
15.53 mi13:41:372:17:068:5021:46
8:59
#20740
30K
18.64 mi14:10:512:46:208:5529:14
9:25
#20491
20M
20.00 mi14:23:582:59:278:5813:07
9:39
#20426
21M
21.00 mi14:33:593:09:289:0110:01
10:01
#20300
35K
21.75 mi14:41:033:16:329:027:04
9:27
#20286
23M
23.00 mi14:52:383:28:079:0311:35
9:15
#20136
24M
24.00 mi15:01:213:36:509:028:43
8:43
#19974
40K
24.85 mi15:09:043:44:339:027:43
9:02
#19839
25.2M
25.20 mi15:12:203:47:499:023:16
9:28
#19767
Finish
26.22 mi15:20:503:56:199:018:30
8:20
#19619
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi22577135641356420156(Top 71%)12578(Top 78%)12578(Top 560%)
10K6.21 mi3.10 mi21802+77513240+32413240+32420866(Top 73%)12858(Top 80%)12858(Top 572%)
15K9.32 mi3.11 mi21223+57913001+23913001+23920156(Top 71%)12578(Top 78%)12578(Top 560%)
20K12.43 mi3.11 mi20898+32512863+13812863+13819920(Top 70%)12429(Top 77%)12429(Top 553%)
Half13.11 mi0.68 mi20914-1612871-812871-821067(Top 74%)12917(Top 80%)12917(Top 575%)
25K15.53 mi2.42 mi20740+17412785+8612785+8619785(Top 70%)12322(Top 77%)12322(Top 548%)
30K18.64 mi3.11 mi20491+24912623+16212623+16219563(Top 69%)12085(Top 75%)12085(Top 538%)
20M20.00 mi1.36 mi20426+6512577+4612577+4619771(Top 70%)12056(Top 75%)12056(Top 537%)
21M21.00 mi1.00 mi20300+12612497+8012497+8018353(Top 65%)11328(Top 70%)11328(Top 504%)
35K21.75 mi0.75 mi20286+1412477+2012477+2020123(Top 71%)12026(Top 75%)12026(Top 535%)
23M23.00 mi1.25 mi20136+15012385+9212385+9217554(Top 62%)10753(Top 67%)10753(Top 479%)
24M24.00 mi1.00 mi19974+16212293+9212293+9215834(Top 56%)9970(Top 62%)9970(Top 444%)
40K24.85 mi0.85 mi19839+13512205+8812205+8816448(Top 58%)10131(Top 63%)10131(Top 451%)
25.2M25.20 mi0.35 mi19767+7212175+3012175+3014432(Top 51%)9161(Top 57%)9161(Top 408%)
Finish26.22 mi1.02 mi19619+14812089+8612089+8615184(Top 53%)9568(Top 59%)9568(Top 426%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21stories
+97ft-345ft

Overall

20156

Males

12578

M40-44

12578

5K→10K

3.1 - 6.2 mi

Top 73%
×5stories
+79ft-138ft

Overall

20866

Males

12858

M40-44

12858

10K→15K

6.2 - 9.3 mi

Top 71%
×3stories
+67ft-78ft

Overall

20156

Males

12578

M40-44

12578

15K→20K

9.3 - 12.4 mi

Top 70%
×5stories
+106ft-86ft

Overall

19920

Males

12429

M40-44

12429

20K→Half

12.4 - 13.1 mi

Top 74%
×2stories
+19ft-37ft

Overall

21067

Males

12917

M40-44

12917

Half→25K

13.1 - 15.5 mi

Top 70%
×4stories
+66ft-88ft

Overall

19785

Males

12322

M40-44

12322

25K→30K

15.5 - 18.6 mi

Top 69%
×9stories
+181ft-148ft

Overall

19563

Males

12085

M40-44

12085

30K→20M

18.6 - 20.0 mi

Top 70%
×5stories
+64ft-50ft

Overall

19771

Males

12056

M40-44

12056

20M→21M

20.0 - 21.0 mi

Top 65%
×8stories
+106ft-24ft

Overall

18353

Males

11328

M40-44

11328

21M→35K

21.0 - 21.8 mi

Top 71%
×7stories
+17ft-86ft

Overall

20123

Males

12026

M40-44

12026

35K→23M

21.8 - 23.0 mi

Top 62%
×5stories
+23ft-63ft

Overall

17554

Males

10753

M40-44

10753

23M→24M

23.0 - 24.0 mi

Top 56%
×6stories
+12ft-82ft

Overall

15834

Males

9970

M40-44

9970

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

16448

Males

10131

M40-44

10131

40K→25.2M

24.9 - 25.2 mi

Top 51%
×1story
+13ft-16ft

Overall

14432

Males

9161

M40-44

9161

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2stories
+22ft-21ft

Overall

15184

Males

9568

M40-44

9568

Passing Analysis

Category:
Athletes Passed
3462
Passed By
504
Net Change
+2958
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22577
5K → 10K81843+775#22577#21802
10K → 15K61738+579#21802#21223
15K → 20K37045+325#21223#20898
20K → Half3147-16#20898#20914
Half → 25K23864+174#20914#20740
25K → 30K33889+249#20740#20491
30K → 20M12964+65#20491#20426
20M → 21M15327+126#20426#20300
21M → 35K5844+14#20300#20286
35K → 23M16818+150#20286#20136
23M → 24M1653+162#20136#19974
24M → 40K14611+135#19974#19839
40K → 25.2M742+72#19839#19767
25.2M → Finish1579+148#19767#19619
TOTALS3462504+2958
📊

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