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BOSTON MARATHON 2025

David Burton

Bib: 4950•M

IL

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 7%
Gender (Male)
#0 / 16105
Top 12%
Division (M18-39)
#0 / 5642
Top 28%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:56
Rank: #3221
Start → 5K
19:56 | 6:25/mi
10K· 6.21 mi
39:50
Rank: #3137 (+84)
5K → 10K
19:54 | 6:24/mi
15K· 9.32 mi
59:35
Rank: #2949 (+188)
10K → 15K
19:45 | 6:21/mi
20K· 12.43 mi
1:19:18
Rank: #2738 (+211)
15K → 20K
19:43 | 6:21/mi
Half· 13.11 mi
1:23:34
Rank: #2701 (+37)
20K → Half
4:16 | 6:15/mi
25K· 15.53 mi
1:39:01
Rank: #2592 (+109)
Half → 25K
15:27 | 6:22/mi
30K· 18.64 mi
1:59:21
Rank: #2459 (+133)
25K → 30K
20:20 | 6:33/mi
20M
2:08:19
Rank: #2396 (+63)
30K → 20M
8:58 | 6:36/mi
21M
2:15:11
Rank: #2324 (+72)
20M → 21M
6:52 | 6:52/mi
35K· 21.75 mi
2:19:49
Rank: #2264 (+60)
21M → 35K
4:38 | 6:12/mi
23M
2:28:01
Rank: #2187 (+77)
35K → 23M
8:12 | 6:33/mi
24M
2:34:16
Rank: #2101 (+86)
23M → 24M
6:15 | 6:15/mi
40K· 24.85 mi
2:39:35
Rank: #2002 (+99)
24M → 40K
5:19 | 6:13/mi
25.2M
2:42:02
Rank: #1994 (+8)
40K → 25.2M
2:27 | 7:06/mi
Finish· 26.22 mi
2:48:37
Rank: #1984 (+10)
25.2M → Finish
6:35 | 6:28/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:34
Pace6:22 /mi
2nd Half
Distance13.11 mi
Time1:25:03
Pace6:29 /mi
📊Positive Split: 1.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:0119:566:2519:56
6:25
-
10K
6.21 mi10:43:5539:506:2519:54
6:24
-0:01
15K
9.32 mi11:03:4059:356:2419:45
6:21
-0:03
20K
12.43 mi11:23:231:19:186:2319:43
6:21
0:00
Half
13.11 mi11:27:391:23:346:224:16
6:15
-0:06
25K
15.53 mi11:43:061:39:016:2215:27
6:22
+0:07
30K
18.64 mi12:03:261:59:216:2420:20
6:33
+0:11
20M
20.00 mi12:12:242:08:196:258:58
6:36
+0:03
21M
21.00 mi12:19:162:15:116:266:52
6:52
+0:16
35K
21.75 mi12:23:542:19:496:264:38
6:12
-0:40
23M
23.00 mi12:32:062:28:016:268:12
6:33
+0:21
24M
24.00 mi12:38:212:34:166:266:15
6:15
-0:18
40K
24.85 mi12:43:402:39:356:255:19
6:13
-0:02
25.2M
25.20 mi12:46:072:42:026:262:27
7:06
+0:53
Finish
26.22 mi12:52:422:48:376:266:35
6:28
-0:38

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

6:26 /mi

Slowest Pace

7:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:39:18

94% of race

Time at Steady Pace

9:19

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:26 /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 mi10:24:0119:566:2519:56
6:25
#3221
10K
6.21 mi10:43:5539:506:2519:54
6:24
#3137
15K
9.32 mi11:03:4059:356:2419:45
6:21
#2949
20K
12.43 mi11:23:231:19:186:2319:43
6:21
#2738
Half
13.11 mi11:27:391:23:346:224:16
6:15
#2701
25K
15.53 mi11:43:061:39:016:2215:27
6:22
#2592
30K
18.64 mi12:03:261:59:216:2420:20
6:33
#2459
20M
20.00 mi12:12:242:08:196:258:58
6:36
#2396
21M
21.00 mi12:19:162:15:116:266:52
6:52
#2324
35K
21.75 mi12:23:542:19:496:264:38
6:12
#2264
23M
23.00 mi12:32:062:28:016:268:12
6:33
#2187
24M
24.00 mi12:38:212:34:166:266:15
6:15
#2101
40K
24.85 mi12:43:402:39:356:255:19
6:13
#2002
25.2M
25.20 mi12:46:072:42:026:262:27
7:06
#1994
Finish
26.22 mi12:52:422:48:376:266:35
6:28
#1984
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3221306030602660(Top 9%)2534(Top 16%)2534(Top 45%)
10K6.21 mi3.10 mi3137+842983+772983+773063(Top 11%)2916(Top 18%)2916(Top 52%)
15K9.32 mi3.11 mi2949+1882809+1742809+1742660(Top 9%)2534(Top 16%)2534(Top 45%)
20K12.43 mi3.11 mi2738+2112610+1992610+1992243(Top 8%)2137(Top 13%)2137(Top 38%)
Half13.11 mi0.68 mi2701+372577+332577+332212(Top 8%)2113(Top 13%)2113(Top 37%)
25K15.53 mi2.42 mi2592+1092474+1032474+1032203(Top 8%)2096(Top 13%)2096(Top 37%)
30K18.64 mi3.11 mi2459+1332346+1282346+1282167(Top 8%)2051(Top 13%)2051(Top 36%)
20M20.00 mi1.36 mi2396+632286+602286+602000(Top 7%)1890(Top 12%)1890(Top 33%)
21M21.00 mi1.00 mi2324+722215+712215+711741(Top 6%)1642(Top 10%)1642(Top 29%)
35K21.75 mi0.75 mi2264+602156+592156+591210(Top 4%)1141(Top 7%)1141(Top 20%)
23M23.00 mi1.25 mi2187+772081+752081+751622(Top 6%)1515(Top 9%)1515(Top 27%)
24M24.00 mi1.00 mi2101+861997+841997+841166(Top 4%)1093(Top 7%)1093(Top 19%)
40K24.85 mi0.85 mi2002+991899+981899+98774(Top 3%)725(Top 5%)725(Top 13%)
25.2M25.20 mi0.35 mi1994+81892+71892+71778(Top 6%)1617(Top 10%)1617(Top 29%)
Finish26.22 mi1.02 mi1984+101880+121880+122586(Top 9%)2336(Top 15%)2336(Top 41%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21stories
+97ft-345ft

Overall

2660

Males

2534

M18-39

2534

5K→10K

3.1 - 6.2 mi

Top 11%
×5stories
+79ft-138ft

Overall

3063

Males

2916

M18-39

2916

10K→15K

6.2 - 9.3 mi

Top 9%
×3stories
+67ft-78ft

Overall

2660

Males

2534

M18-39

2534

15K→20K

9.3 - 12.4 mi

Top 8%
×5stories
+106ft-86ft

Overall

2243

Males

2137

M18-39

2137

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2212

Males

2113

M18-39

2113

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2203

Males

2096

M18-39

2096

25K→30K

15.5 - 18.6 mi

Top 8%
×9stories
+181ft-148ft

Overall

2167

Males

2051

M18-39

2051

30K→20M

18.6 - 20.0 mi

Top 7%
×5stories
+64ft-50ft

Overall

2000

Males

1890

M18-39

1890

20M→21M

20.0 - 21.0 mi

Top 6%
×8stories
+106ft-24ft

Overall

1741

Males

1642

M18-39

1642

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

1210

Males

1141

M18-39

1141

35K→23M

21.8 - 23.0 mi

Top 6%
×5stories
+23ft-63ft

Overall

1622

Males

1515

M18-39

1515

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

1166

Males

1093

M18-39

1093

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

774

Males

725

M18-39

725

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1778

Males

1617

M18-39

1617

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2stories
+22ft-21ft

Overall

2586

Males

2336

M18-39

2336

Passing Analysis

Category:
Athletes Passed
1471
Passed By
234
Net Change
+1237
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3221
5K → 10K17894+84#3221#3137
10K → 15K20921+188#3137#2949
15K → 20K2176+211#2949#2738
20K → Half392+37#2738#2701
Half → 25K12516+109#2701#2592
25K → 30K15825+133#2592#2459
30K → 20M7916+63#2459#2396
20M → 21M797+72#2396#2324
21M → 35K611+60#2324#2264
35K → 23M858+77#2264#2187
23M → 24M882+86#2187#2101
24M → 40K1012+99#2101#2002
40K → 25.2M146+8#2002#1994
25.2M → Finish3828+10#1994#1984
TOTALS1471234+1237
📊

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