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BOSTON MARATHON 2025

Sean Fontaine

Bib: 13644•M

CO

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 34%
Gender (Male)
#0 / 16105
Top 47%
Masters (Masters Men)
#0 / 10463
Top 36%
Division (M50-54)
#0 / 1996
Top 36%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:57
Rank: #11175
Start → 5K
22:57 | 7:23/mi
10K· 6.21 mi
45:41
Rank: #10783 (+392)
5K → 10K
22:44 | 7:19/mi
15K· 9.32 mi
1:08:16
Rank: #10421 (+362)
10K → 15K
22:35 | 7:16/mi
20K· 12.43 mi
1:30:55
Rank: #10004 (+417)
15K → 20K
22:39 | 7:17/mi
Half· 13.11 mi
1:35:51
Rank: #9973 (+31)
20K → Half
4:56 | 7:14/mi
25K· 15.53 mi
1:53:41
Rank: #9728 (+245)
Half → 25K
17:50 | 7:21/mi
30K· 18.64 mi
2:17:38
Rank: #9562 (+166)
25K → 30K
23:57 | 7:43/mi
20M
2:28:21
Rank: #9528 (+34)
30K → 20M
10:43 | 7:53/mi
21M
2:36:39
Rank: #9482 (+46)
20M → 21M
8:18 | 8:18/mi
35K· 21.75 mi
2:42:32
Rank: #9519 (-37)
21M → 35K
5:53 | 7:52/mi
23M
2:52:43
Rank: #9577 (-58)
35K → 23M
10:11 | 8:08/mi
24M
3:00:42
Rank: #9623 (-46)
23M → 24M
7:59 | 7:59/mi
40K· 24.85 mi
3:07:41
Rank: #9664 (-41)
24M → 40K
6:59 | 8:10/mi
25.2M
3:10:42
Rank: #9665 (-1)
40K → 25.2M
3:01 | 8:45/mi
Finish· 26.22 mi
3:18:29
Rank: #9668 (-3)
25.2M → Finish
7:47 | 7:38/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:51
Pace7:19 /mi
2nd Half
Distance13.11 mi
Time1:42:38
Pace7:50 /mi
📊Positive Split: 7.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:4722:577:2322:57
7:23
-
10K
6.21 mi11:15:3145:417:2122:44
7:19
-0:04
15K
9.32 mi11:38:061:08:167:1922:35
7:16
-0:03
20K
12.43 mi12:00:451:30:557:1922:39
7:17
+0:01
Half
13.11 mi12:05:411:35:517:194:56
7:14
-0:03
25K
15.53 mi12:23:311:53:417:1917:50
7:21
+0:07
30K
18.64 mi12:47:282:17:387:2323:57
7:43
+0:22
20M
20.00 mi12:58:112:28:217:2510:43
7:53
+0:10
21M
21.00 mi13:06:292:36:397:288:18
8:18
+0:25
35K
21.75 mi13:12:222:42:327:285:53
7:52
-0:26
23M
23.00 mi13:22:332:52:437:3110:11
8:08
+0:16
24M
24.00 mi13:30:323:00:427:327:59
7:59
-0:09
40K
24.85 mi13:37:313:07:417:336:59
8:10
+0:11
25.2M
25.20 mi13:40:323:10:427:343:01
8:45
+0:35
Finish
26.22 mi13:48:193:18:297:357:47
7:38
-1:07

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

7:14 /mi

Average Pace

7:35 /mi

Slowest Pace

8:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:53:41

57% of race

Time at Steady Pace

48:20

24% of race

Time at Slower Pace

36:28

18% of race

Average Pace: 7:34 /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 mi10:52:4722:577:2322:57
7:23
#11175
10K
6.21 mi11:15:3145:417:2122:44
7:19
#10783
15K
9.32 mi11:38:061:08:167:1922:35
7:16
#10421
20K
12.43 mi12:00:451:30:557:1922:39
7:17
#10004
Half
13.11 mi12:05:411:35:517:194:56
7:14
#9973
25K
15.53 mi12:23:311:53:417:1917:50
7:21
#9728
30K
18.64 mi12:47:282:17:387:2323:57
7:43
#9562
20M
20.00 mi12:58:112:28:217:2510:43
7:53
#9528
21M
21.00 mi13:06:292:36:397:288:18
8:18
#9482
35K
21.75 mi13:12:222:42:327:285:53
7:52
#9519
23M
23.00 mi13:22:332:52:437:3110:11
8:08
#9577
24M
24.00 mi13:30:323:00:427:327:59
7:59
#9623
40K
24.85 mi13:37:313:07:417:336:59
8:10
#9664
25.2M
25.20 mi13:40:323:10:427:343:01
8:45
#9665
Finish
26.22 mi13:48:193:18:297:357:47
7:38
#9668
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi11175878287829713(Top 34%)7927(Top 49%)7927(Top 397%)
10K6.21 mi3.10 mi10783+3928557+2258557+22510477(Top 37%)8396(Top 52%)8396(Top 421%)
15K9.32 mi3.11 mi10421+3628353+2048353+2049713(Top 34%)7927(Top 49%)7927(Top 397%)
20K12.43 mi3.11 mi10004+4178107+2468107+2468969(Top 32%)7437(Top 46%)7437(Top 373%)
Half13.11 mi0.68 mi9973+318089+188089+189324(Top 33%)7667(Top 48%)7667(Top 384%)
25K15.53 mi2.42 mi9728+2457923+1667923+1668780(Top 31%)7215(Top 45%)7215(Top 361%)
30K18.64 mi3.11 mi9562+1667775+1487775+1489245(Top 33%)7283(Top 45%)7283(Top 365%)
20M20.00 mi1.36 mi9528+347715+607715+609598(Top 34%)7311(Top 45%)7311(Top 366%)
21M21.00 mi1.00 mi9482+467663+527663+529202(Top 32%)6932(Top 43%)6932(Top 347%)
35K21.75 mi0.75 mi9519-377672-97672-911240(Top 40%)7967(Top 49%)7967(Top 399%)
23M23.00 mi1.25 mi9577-587659+137659+1310929(Top 38%)7705(Top 48%)7705(Top 386%)
24M24.00 mi1.00 mi9623-467643+167643+1611087(Top 39%)7711(Top 48%)7711(Top 386%)
40K24.85 mi0.85 mi9664-417630+137630+1311328(Top 40%)7719(Top 48%)7719(Top 387%)
25.2M25.20 mi0.35 mi9665-17613+177613+1710235(Top 36%)7059(Top 44%)7059(Top 354%)
Finish26.22 mi1.02 mi9668-37568+457568+4510200(Top 36%)7086(Top 44%)7086(Top 355%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21stories
+97ft-345ft

Overall

9713

Males

7927

M50-54

7927

5K→10K

3.1 - 6.2 mi

Top 37%
×5stories
+79ft-138ft

Overall

10477

Males

8396

M50-54

8396

10K→15K

6.2 - 9.3 mi

Top 34%
×3stories
+67ft-78ft

Overall

9713

Males

7927

M50-54

7927

15K→20K

9.3 - 12.4 mi

Top 32%
×5stories
+106ft-86ft

Overall

8969

Males

7437

M50-54

7437

20K→Half

12.4 - 13.1 mi

Top 33%
×2stories
+19ft-37ft

Overall

9324

Males

7667

M50-54

7667

Half→25K

13.1 - 15.5 mi

Top 31%
×4stories
+66ft-88ft

Overall

8780

Males

7215

M50-54

7215

25K→30K

15.5 - 18.6 mi

Top 33%
×9stories
+181ft-148ft

Overall

9245

Males

7283

M50-54

7283

30K→20M

18.6 - 20.0 mi

Top 34%
×5stories
+64ft-50ft

Overall

9598

Males

7311

M50-54

7311

20M→21M

20.0 - 21.0 mi

Top 32%
×8stories
+106ft-24ft

Overall

9202

Males

6932

M50-54

6932

21M→35K

21.0 - 21.8 mi

Top 40%
×7stories
+17ft-86ft

Overall

11240

Males

7967

M50-54

7967

35K→23M

21.8 - 23.0 mi

Top 38%
×5stories
+23ft-63ft

Overall

10929

Males

7705

M50-54

7705

23M→24M

23.0 - 24.0 mi

Top 39%
×6stories
+12ft-82ft

Overall

11087

Males

7711

M50-54

7711

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

11328

Males

7719

M50-54

7719

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

10235

Males

7059

M50-54

7059

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2stories
+22ft-21ft

Overall

10200

Males

7086

M50-54

7086

Passing Analysis

Category:
Athletes Passed
2564*
Passed By
1056
Net Change
+1507
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11175
5K → 10K501109+392#11175#10783
10K → 15K39129+362#10783#10421
15K → 20K44022+417#10421#10004
20K → Half45*14+31#10004#9973
Half → 25K28035+245#9973#9728
25K → 30K301135+166#9728#9562
30K → 20M12288+34#9562#9528
20M → 21M10660+46#9528#9482
21M → 35K4784-37#9482#9519
35K → 23M91149-58#9519#9577
23M → 24M75121-46#9577#9623
24M → 40K5899-41#9623#9664
40K → 25.2M3940-1#9664#9665
25.2M → Finish6871-3#9665#9668
TOTALS2564*1056+1507

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

📊

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