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BOSTON MARATHON 2025

Matthew Kerton

MA

Bib: 31670 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

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
9:27/mi
29:21
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
9:49/mi
59:50
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
9:17/mi
1:28:41
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
9:54/mi
1:59:26
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
9:27/mi
2:05:53
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
10:26/mi
2:31:12
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
11:42/mi
3:07:34
↑ 181↓ 1480.2%
138 ft elev
20M
10:18/mi
3:21:34
↑ 64↓ 500.2%
148 ft elev
21M
13:41/mi
3:35:15
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
12:50/mi
3:44:51
↑ 17↓ 861.7%
156 ft elev
23M
11:16/mi
3:58:57
↑ 23↓ 630.6%
116 ft elev
24M
9:50/mi
4:08:47
↓ 821.3%
34 ft elev
40K· 24.85 mi
11:55/mi
4:18:58
↓ 200.3%
20 ft elev
25.2M
13:35/mi
4:23:39
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
14:43/mi
4:38:39
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:05:53
Pace9:36 /mi
2nd Half
Distance13.11 mi
Time2:32:46
Pace11:39 /mi
📊Positive Split: 21.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:5029:219:2729:21
9:27
-
10K
6.21 mi12:25:1959:509:3830:29
9:49
+0:22
15K
9.32 mi12:54:101:28:419:3128:51
9:17
-0:32
20K
12.43 mi13:24:551:59:269:3730:45
9:54
+0:37
Half
13.11 mi13:31:222:05:539:366:27
9:27
-0:27
25K
15.53 mi13:56:412:31:129:4425:19
10:26
+0:59
30K
18.64 mi14:33:033:07:3410:0436:22
11:42
+1:16
20M
20.00 mi14:47:033:21:3410:0514:00
10:18
-1:24
21M
21.00 mi15:00:443:35:1510:1513:41
13:41
+3:23
35K
21.75 mi15:10:203:44:5110:209:36
12:50
-0:51
23M
23.00 mi15:24:263:58:5710:2314:06
11:16
-1:34
24M
24.00 mi15:34:164:08:4710:229:50
9:50
-1:26
40K
24.85 mi15:44:274:18:5810:2510:11
11:55
+2:05
25.2M
25.20 mi15:49:084:23:3910:284:41
13:35
+1:40
Finish
26.22 mi16:04:084:38:3910:3815:00
14:43
+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

9:17 /mi

Average Pace

10:38 /mi

Slowest Pace

14:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:04:39

23% of race

Time at Steady Pace

2:04:29

45% of race

Time at Slower Pace

1:29:31

32% of race

Average Pace: 10:38 /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 mi11:54:5029:219:2729:21
9:27
#24056
10K
6.21 mi12:25:1959:509:3830:29
9:49
#24538
15K
9.32 mi12:54:101:28:419:3128:51
9:17
#24080
20K
12.43 mi13:24:551:59:269:3730:45
9:54
#24052
Half
13.11 mi13:31:222:05:539:366:27
9:27
#24012
25K
15.53 mi13:56:412:31:129:4425:19
10:26
#24060
30K
18.64 mi14:33:033:07:3410:0436:22
11:42
#24373
20M
20.00 mi14:47:033:21:3410:0514:00
10:18
#24193
21M
21.00 mi15:00:443:35:1510:1513:41
13:41
#24355
35K
21.75 mi15:10:203:44:5110:209:36
12:50
#24499
23M
23.00 mi15:24:263:58:5710:2314:06
11:16
#24468
24M
24.00 mi15:34:164:08:4710:229:50
9:50
#24316
40K
24.85 mi15:44:274:18:5810:2510:11
11:55
#24367
25.2M
25.20 mi15:49:084:23:3910:284:41
13:35
#24404
Finish
26.22 mi16:04:084:38:3910:3815:00
14:43
#24752
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi24056142691426923170(Top 82%)13919(Top 86%)13919(Top 697%)
10K6.21 mi3.10 mi24538-48214505-23614505-23624877(Top 88%)14646(Top 91%)14646(Top 734%)
15K9.32 mi3.11 mi24080+45814297+20814297+20823170(Top 82%)13919(Top 86%)13919(Top 697%)
20K12.43 mi3.11 mi24052+2814270+2714270+2724008(Top 85%)14238(Top 88%)14238(Top 713%)
Half13.11 mi0.68 mi24012+4014250+2014250+2023419(Top 82%)13982(Top 87%)13982(Top 701%)
25K15.53 mi2.42 mi24060-4814255-514255-524262(Top 85%)14310(Top 89%)14310(Top 717%)
30K18.64 mi3.11 mi24373-31314376-12114376-12125155(Top 89%)14605(Top 91%)14605(Top 732%)
20M20.00 mi1.36 mi24193+18014273+10314273+10321878(Top 77%)13002(Top 81%)13002(Top 651%)
21M21.00 mi1.00 mi24355-16214334-6114334-6125858(Top 91%)14820(Top 92%)14820(Top 742%)
35K21.75 mi0.75 mi24499-14414394-6014394-6026816(Top 94%)15247(Top 95%)15247(Top 764%)
23M23.00 mi1.25 mi24468+3114362+3214362+3223810(Top 84%)13744(Top 85%)13744(Top 689%)
24M24.00 mi1.00 mi24316+15214287+7514287+7520843(Top 73%)12274(Top 76%)12274(Top 615%)
40K24.85 mi0.85 mi24367-5114300-1314300-1324774(Top 87%)14152(Top 88%)14152(Top 709%)
25.2M25.20 mi0.35 mi24404-3714312-1214312-1225781(Top 91%)14632(Top 91%)14632(Top 733%)
Finish26.22 mi1.02 mi24752-34814450-13814450-13828199(Top 99%)15966(Top 99%)15966(Top 800%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21story building
+97ft-345ft

Overall

23170

Males

13919

M50-54

13919

5K→10K

3.1 - 6.2 mi

Top 88%
×5story building
+79ft-138ft

Overall

24877

Males

14646

M50-54

14646

10K→15K

6.2 - 9.3 mi

Top 82%
×3story building
+67ft-78ft

Overall

23170

Males

13919

M50-54

13919

15K→20K

9.3 - 12.4 mi

Top 85%
×5story building
+106ft-86ft

Overall

24008

Males

14238

M50-54

14238

20K→Half

12.4 - 13.1 mi

Top 82%
×2story building
+19ft-37ft

Overall

23419

Males

13982

M50-54

13982

Half→25K

13.1 - 15.5 mi

Top 85%
×4story building
+66ft-88ft

Overall

24262

Males

14310

M50-54

14310

25K→30K

15.5 - 18.6 mi

Top 89%
×9story building
+181ft-148ft

Overall

25155

Males

14605

M50-54

14605

30K→20M

18.6 - 20.0 mi

Top 77%
×5story building
+64ft-50ft

Overall

21878

Males

13002

M50-54

13002

20M→21M

20.0 - 21.0 mi

Top 91%
×8story building
+106ft-24ft

Overall

25858

Males

14820

M50-54

14820

21M→35K

21.0 - 21.8 mi

Top 94%
×7story building
+17ft-86ft

Overall

26816

Males

15247

M50-54

15247

35K→23M

21.8 - 23.0 mi

Top 84%
×5story building
+23ft-63ft

Overall

23810

Males

13744

M50-54

13744

23M→24M

23.0 - 24.0 mi

Top 73%
×6story building
+12ft-82ft

Overall

20843

Males

12274

M50-54

12274

24M→40K

24.0 - 24.9 mi

Top 87%
×1story
+6ft-20ft

Overall

24774

Males

14152

M50-54

14152

40K→25.2M

24.9 - 25.2 mi

Top 91%
×1story
+13ft-16ft

Overall

25781

Males

14632

M50-54

14632

25.2M→Finish

25.2 - 26.2 mi

Top 99%
×2story building
+22ft-21ft

Overall

28199

Males

15966

M50-54

15966

Passing Analysis

Category:
Athletes Passed
1374
Passed By
2070
Net Change
-696
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24056
5K → 10K82564-482#24056#24538
10K → 15K47214+458#24538#24080
15K → 20K149121+28#24080#24052
20K → Half499+40#24052#24012
Half → 25K101149-48#24012#24060
25K → 30K51364-313#24060#24373
30K → 20M1855+180#24373#24193
20M → 21M20182-162#24193#24355
21M → 35K5149-144#24355#24499
35K → 23M7443+31#24499#24468
23M → 24M1553+152#24468#24316
24M → 40K2273-51#24316#24367
40K → 25.2M542-37#24367#24404
25.2M → Finish4352-348#24404#24752
TOTALS13742070-696
📊

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