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BOSTON MARATHON 2025

Stephane Guercio

Bib: 31456•M

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:56
Rank: #16775
Start → 5K
24:56 | 8:02/mi
10K· 6.21 mi
49:39
Rank: #16428 (+347)
5K → 10K
24:43 | 7:57/mi
15K· 9.32 mi
1:14:30
Rank: #16268 (+160)
10K → 15K
24:51 | 8:00/mi
20K· 12.43 mi
1:39:34
Rank: #16018 (+250)
15K → 20K
25:04 | 8:04/mi
Half· 13.11 mi
1:44:56
Rank: #15950 (+68)
20K → Half
5:22 | 7:52/mi
25K· 15.53 mi
2:04:46
Rank: #15813 (+137)
Half → 25K
19:50 | 8:11/mi
30K· 18.64 mi
2:31:23
Rank: #15664 (+149)
25K → 30K
26:37 | 8:34/mi
20M
2:43:37
Rank: #15705 (-41)
30K → 20M
12:14 | 9:00/mi
21M
2:53:07
Rank: #15708 (-3)
20M → 21M
9:30 | 9:30/mi
35K· 21.75 mi
2:59:29
Rank: #15673 (+35)
21M → 35K
6:22 | 8:31/mi
23M
3:10:27
Rank: #15589 (+84)
35K → 23M
10:58 | 8:46/mi
24M
3:19:27
Rank: #15640 (-51)
23M → 24M
9:00 | 9:00/mi
40K· 24.85 mi
3:26:59
Rank: #15608 (+32)
24M → 40K
7:32 | 8:49/mi
25.2M
3:30:14
Rank: #15574 (+34)
40K → 25.2M
3:15 | 9:25/mi
Finish· 26.22 mi
3:38:52
Rank: #15579 (-5)
25.2M → Finish
8:38 | 8:28/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:56
Pace8:00 /mi
2nd Half
Distance13.11 mi
Time1:53:56
Pace8:41 /mi
📊Positive Split: 8.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:0824:568:0224:56
8:02
-
10K
6.21 mi12:11:5149:397:5924:43
7:57
-0:05
15K
9.32 mi12:36:421:14:308:0024:51
8:00
+0:03
20K
12.43 mi13:01:461:39:348:0125:04
8:04
+0:04
Half
13.11 mi13:07:081:44:568:005:22
7:52
-0:12
25K
15.53 mi13:26:582:04:468:0219:50
8:11
+0:19
30K
18.64 mi13:53:352:31:238:0726:37
8:34
+0:23
20M
20.00 mi14:05:492:43:378:1112:14
9:00
+0:26
21M
21.00 mi14:15:192:53:078:159:30
9:30
+0:30
35K
21.75 mi14:21:412:59:298:156:22
8:31
-0:59
23M
23.00 mi14:32:393:10:278:1710:58
8:46
+0:15
24M
24.00 mi14:41:393:19:278:199:00
9:00
+0:14
40K
24.85 mi14:49:113:26:598:207:32
8:49
-0:11
25.2M
25.20 mi14:52:263:30:148:213:15
9:25
+0:36
Finish
26.22 mi15:01:043:38:528:218:38
8:28
-0:57

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

7:52 /mi

Average Pace

8:21 /mi

Slowest Pace

9:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:04:46

57% of race

Time at Steady Pace

52:35

24% of race

Time at Slower Pace

41:31

19% of race

Average Pace: 8:21 /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 mi11:47:0824:568:0224:56
8:02
#16775
10K
6.21 mi12:11:5149:397:5924:43
7:57
#16428
15K
9.32 mi12:36:421:14:308:0024:51
8:00
#16268
20K
12.43 mi13:01:461:39:348:0125:04
8:04
#16018
Half
13.11 mi13:07:081:44:568:005:22
7:52
#15950
25K
15.53 mi13:26:582:04:468:0219:50
8:11
#15813
30K
18.64 mi13:53:352:31:238:0726:37
8:34
#15664
20M
20.00 mi14:05:492:43:378:1112:14
9:00
#15705
21M
21.00 mi14:15:192:53:078:159:30
9:30
#15708
35K
21.75 mi14:21:412:59:298:156:22
8:31
#15673
23M
23.00 mi14:32:393:10:278:1710:58
8:46
#15589
24M
24.00 mi14:41:393:19:278:199:00
9:00
#15640
40K
24.85 mi14:49:113:26:598:207:32
8:49
#15608
25.2M
25.20 mi14:52:263:30:148:213:15
9:25
#15574
Finish
26.22 mi15:01:043:38:528:218:38
8:28
#15579
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi16775111051110516033(Top 56%)10822(Top 67%)10822(Top 542%)
10K6.21 mi3.10 mi16428+34710984+12110984+12116100(Top 57%)10872(Top 68%)10872(Top 545%)
15K9.32 mi3.11 mi16268+16010927+5710927+5716033(Top 56%)10822(Top 67%)10822(Top 542%)
20K12.43 mi3.11 mi16018+25010810+11710810+11715396(Top 54%)10495(Top 65%)10495(Top 526%)
Half13.11 mi0.68 mi15950+6810782+2810782+2814775(Top 52%)10250(Top 64%)10250(Top 514%)
25K15.53 mi2.42 mi15813+13710704+7810704+7815163(Top 53%)10300(Top 64%)10300(Top 516%)
30K18.64 mi3.11 mi15664+14910588+11610588+11615177(Top 53%)10136(Top 63%)10136(Top 508%)
20M20.00 mi1.36 mi15705-4110561+2710561+2716784(Top 59%)10716(Top 67%)10716(Top 537%)
21M21.00 mi1.00 mi15708-310520+4110520+4116055(Top 57%)10279(Top 64%)10279(Top 515%)
35K21.75 mi0.75 mi15673+3510492+2810492+2815511(Top 55%)9942(Top 62%)9942(Top 498%)
23M23.00 mi1.25 mi15589+8410423+6910423+6914869(Top 52%)9572(Top 59%)9572(Top 480%)
24M24.00 mi1.00 mi15640-5110422+110422+117341(Top 61%)10618(Top 66%)10618(Top 532%)
40K24.85 mi0.85 mi15608+3210380+4210380+4215229(Top 54%)9540(Top 59%)9540(Top 478%)
25.2M25.20 mi0.35 mi15574+3410352+2810352+2814115(Top 50%)9000(Top 56%)9000(Top 451%)
Finish26.22 mi1.02 mi15579-510337+1510337+1516014(Top 56%)9946(Top 62%)9946(Top 498%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21stories
+97ft-345ft

Overall

16033

Males

10822

M50-54

10822

5K→10K

3.1 - 6.2 mi

Top 57%
×5stories
+79ft-138ft

Overall

16100

Males

10872

M50-54

10872

10K→15K

6.2 - 9.3 mi

Top 56%
×3stories
+67ft-78ft

Overall

16033

Males

10822

M50-54

10822

15K→20K

9.3 - 12.4 mi

Top 54%
×5stories
+106ft-86ft

Overall

15396

Males

10495

M50-54

10495

20K→Half

12.4 - 13.1 mi

Top 52%
×2stories
+19ft-37ft

Overall

14775

Males

10250

M50-54

10250

Half→25K

13.1 - 15.5 mi

Top 53%
×4stories
+66ft-88ft

Overall

15163

Males

10300

M50-54

10300

25K→30K

15.5 - 18.6 mi

Top 53%
×9stories
+181ft-148ft

Overall

15177

Males

10136

M50-54

10136

30K→20M

18.6 - 20.0 mi

Top 59%
×5stories
+64ft-50ft

Overall

16784

Males

10716

M50-54

10716

20M→21M

20.0 - 21.0 mi

Top 57%
×8stories
+106ft-24ft

Overall

16055

Males

10279

M50-54

10279

21M→35K

21.0 - 21.8 mi

Top 55%
×7stories
+17ft-86ft

Overall

15511

Males

9942

M50-54

9942

35K→23M

21.8 - 23.0 mi

Top 52%
×5stories
+23ft-63ft

Overall

14869

Males

9572

M50-54

9572

23M→24M

23.0 - 24.0 mi

Top 61%
×6stories
+12ft-82ft

Overall

17341

Males

10618

M50-54

10618

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

15229

Males

9540

M50-54

9540

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

14115

Males

9000

M50-54

9000

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2stories
+22ft-21ft

Overall

16014

Males

9946

M50-54

9946

Passing Analysis

Category:
Athletes Passed
2436
Passed By
1240
Net Change
+1196
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16775
5K → 10K499152+347#16775#16428
10K → 15K291131+160#16428#16268
15K → 20K33282+250#16268#16018
20K → Half779+68#16018#15950
Half → 25K23396+137#15950#15813
25K → 30K299150+149#15813#15664
30K → 20M114155-41#15664#15705
20M → 21M119122-3#15705#15708
21M → 35K7641+35#15708#15673
35K → 23M14460+84#15673#15589
23M → 24M50101-51#15589#15640
24M → 40K9361+32#15640#15608
40K → 25.2M4410+34#15608#15574
25.2M → Finish6570-5#15574#15579
TOTALS24361240+1196
📊

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