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BOSTON MARATHON 2025

David Sawyer

Bib: 4535•M

CO

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 23%
Gender (Male)
#0 / 16105
Top 36%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:46
Rank: #5312
Start → 5K
20:46 | 6:41/mi
10K· 6.21 mi
41:50
Rank: #5692 (-380)
5K → 10K
21:04 | 6:47/mi
15K· 9.32 mi
1:03:01
Rank: #5823 (-131)
10K → 15K
21:11 | 6:49/mi
20K· 12.43 mi
1:24:07
Rank: #5662 (+161)
15K → 20K
21:06 | 6:47/mi
Half· 13.11 mi
1:28:47
Rank: #5702 (-40)
20K → Half
4:40 | 6:50/mi
25K· 15.53 mi
1:45:27
Rank: #5613 (+89)
Half → 25K
16:40 | 6:52/mi
30K· 18.64 mi
2:06:47
Rank: #5179 (+434)
25K → 30K
21:20 | 6:52/mi
20M
2:16:15
Rank: #5030 (+149)
30K → 20M
9:28 | 6:58/mi
21M
2:23:40
Rank: #4956 (+74)
20M → 21M
7:25 | 7:25/mi
35K· 21.75 mi
2:29:11
Rank: #5064 (-108)
21M → 35K
5:31 | 7:22/mi
23M
2:39:12
Rank: #5334 (-270)
35K → 23M
10:01 | 8:00/mi
24M
2:47:36
Rank: #5593 (-259)
23M → 24M
8:24 | 8:24/mi
40K· 24.85 mi
2:55:45
Rank: #6008 (-415)
24M → 40K
8:09 | 9:32/mi
25.2M
2:59:06
Rank: #6127 (-119)
40K → 25.2M
3:21 | 9:43/mi
Finish· 26.22 mi
3:08:26
Rank: #6605 (-478)
25.2M → Finish
9:20 | 9:10/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:47
Pace6:46 /mi
2nd Half
Distance13.11 mi
Time1:39:39
Pace7:36 /mi
📊Positive Split: 12.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:30:1220:466:4120:46
6:41
-
10K
6.21 mi10:51:1641:506:4421:04
6:47
+0:06
15K
9.32 mi11:12:271:03:016:4621:11
6:49
+0:02
20K
12.43 mi11:33:331:24:076:4621:06
6:47
-0:02
Half
13.11 mi11:38:131:28:476:464:40
6:50
+0:03
25K
15.53 mi11:54:531:45:276:4716:40
6:52
+0:02
30K
18.64 mi12:16:132:06:476:4821:20
6:52
0:00
20M
20.00 mi12:25:412:16:156:499:28
6:58
+0:06
21M
21.00 mi12:33:062:23:406:507:25
7:25
+0:27
35K
21.75 mi12:38:372:29:116:525:31
7:22
-0:03
23M
23.00 mi12:48:382:39:126:5510:01
8:00
+0:38
24M
24.00 mi12:57:022:47:366:598:24
8:24
+0:24
40K
24.85 mi13:05:112:55:457:048:09
9:32
+1:08
25.2M
25.20 mi13:08:322:59:067:063:21
9:43
+0:11
Finish
26.22 mi13:17:523:08:267:129:20
9:10
-0:33

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

6:41 /mi

Average Pace

7:12 /mi

Slowest Pace

9:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:29:11

79% of race

Time at Slower Pace

39:15

21% of race

Average Pace: 7:11 /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 mi10:30:1220:466:4120:46
6:41
#5312
10K
6.21 mi10:51:1641:506:4421:04
6:47
#5692
15K
9.32 mi11:12:271:03:016:4621:11
6:49
#5823
20K
12.43 mi11:33:331:24:076:4621:06
6:47
#5662
Half
13.11 mi11:38:131:28:476:464:40
6:50
#5702
25K
15.53 mi11:54:531:45:276:4716:40
6:52
#5613
30K
18.64 mi12:16:132:06:476:4821:20
6:52
#5179
20M
20.00 mi12:25:412:16:156:499:28
6:58
#5030
21M
21.00 mi12:33:062:23:406:507:25
7:25
#4956
35K
21.75 mi12:38:372:29:116:525:31
7:22
#5064
23M
23.00 mi12:48:382:39:126:5510:01
8:00
#5334
24M
24.00 mi12:57:022:47:366:598:24
8:24
#5593
40K
24.85 mi13:05:112:55:457:048:09
9:32
#6008
25.2M
25.20 mi13:08:322:59:067:063:21
9:43
#6127
Finish
26.22 mi13:17:523:08:267:129:20
9:10
#6605
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5312494349436265(Top 22%)5675(Top 35%)5675(Top 101%)
10K6.21 mi3.10 mi5692-3805259-3165259-3166183(Top 22%)5635(Top 35%)5635(Top 100%)
15K9.32 mi3.11 mi5823-1315350-915350-916265(Top 22%)5675(Top 35%)5675(Top 101%)
20K12.43 mi3.11 mi5662+1615201+1495201+1495223(Top 18%)4812(Top 30%)4812(Top 85%)
Half13.11 mi0.68 mi5702-405235-345235-346490(Top 23%)5830(Top 36%)5830(Top 103%)
25K15.53 mi2.42 mi5613+895156+795156+795474(Top 19%)4978(Top 31%)4978(Top 88%)
30K18.64 mi3.11 mi5179+4344766+3904766+3903871(Top 14%)3575(Top 22%)3575(Top 63%)
20M20.00 mi1.36 mi5030+1494633+1334633+1333930(Top 14%)3613(Top 22%)3613(Top 64%)
21M21.00 mi1.00 mi4956+744565+684565+684220(Top 15%)3799(Top 24%)3799(Top 67%)
35K21.75 mi0.75 mi5064-1084648-834648-837681(Top 27%)6098(Top 38%)6098(Top 108%)
23M23.00 mi1.25 mi5334-2704863-2154863-2159985(Top 35%)7214(Top 45%)7214(Top 128%)
24M24.00 mi1.00 mi5593-2595051-1885051-18813822(Top 49%)9047(Top 56%)9047(Top 160%)
40K24.85 mi0.85 mi6008-4155356-3055356-30518807(Top 66%)11216(Top 70%)11216(Top 199%)
25.2M25.20 mi0.35 mi6127-1195432-765432-7615579(Top 55%)9645(Top 60%)9645(Top 171%)
Finish26.22 mi1.02 mi6605-4785727-2955727-29519748(Top 70%)11680(Top 73%)11680(Top 207%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21stories
+97ft-345ft

Overall

6265

Males

5675

M18-39

5675

5K→10K

3.1 - 6.2 mi

Top 22%
×5stories
+79ft-138ft

Overall

6183

Males

5635

M18-39

5635

10K→15K

6.2 - 9.3 mi

Top 22%
×3stories
+67ft-78ft

Overall

6265

Males

5675

M18-39

5675

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

5223

Males

4812

M18-39

4812

20K→Half

12.4 - 13.1 mi

Top 23%
×2stories
+19ft-37ft

Overall

6490

Males

5830

M18-39

5830

Half→25K

13.1 - 15.5 mi

Top 19%
×4stories
+66ft-88ft

Overall

5474

Males

4978

M18-39

4978

25K→30K

15.5 - 18.6 mi

Top 14%
×9stories
+181ft-148ft

Overall

3871

Males

3575

M18-39

3575

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

3930

Males

3613

M18-39

3613

20M→21M

20.0 - 21.0 mi

Top 15%
×8stories
+106ft-24ft

Overall

4220

Males

3799

M18-39

3799

21M→35K

21.0 - 21.8 mi

Top 27%
×7stories
+17ft-86ft

Overall

7681

Males

6098

M18-39

6098

35K→23M

21.8 - 23.0 mi

Top 35%
×5stories
+23ft-63ft

Overall

9985

Males

7214

M18-39

7214

23M→24M

23.0 - 24.0 mi

Top 49%
×6stories
+12ft-82ft

Overall

13822

Males

9047

M18-39

9047

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

18807

Males

11216

M18-39

11216

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

15579

Males

9645

M18-39

9645

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2stories
+22ft-21ft

Overall

19748

Males

11680

M18-39

11680

Passing Analysis

Category:
Athletes Passed
1336
Passed By
2629
Net Change
-1293
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5312
5K → 10K58438-380#5312#5692
10K → 15K85216-131#5692#5823
15K → 20K21352+161#5823#5662
20K → Half1252-40#5662#5702
Half → 25K15768+89#5702#5613
25K → 30K44612+434#5613#5179
30K → 20M16415+149#5179#5030
20M → 21M10531+74#5030#4956
21M → 35K30138-108#4956#5064
35K → 23M34304-270#5064#5334
23M → 24M8267-259#5334#5593
24M → 40K8423-415#5593#6008
40K → 25.2M7126-119#6008#6127
25.2M → Finish9487-478#6127#6605
TOTALS13362629-1293
📊

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