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BOSTON MARATHON 2025

David Scheffer

Bib: 3869•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 24%
Gender (Male)
#0 / 16105
Top 37%
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
20:12
Rank: #3859
Start → 5K
20:12 | 6:30/mi
10K· 6.21 mi
40:56
Rank: #4408 (-549)
5K → 10K
20:44 | 6:40/mi
15K· 9.32 mi
1:01:27
Rank: #4346 (+62)
10K → 15K
20:31 | 6:36/mi
20K· 12.43 mi
1:23:04
Rank: #4862 (-516)
15K → 20K
21:37 | 6:57/mi
Half· 13.11 mi
1:27:37
Rank: #4867 (-5)
20K → Half
4:33 | 6:40/mi
25K· 15.53 mi
1:44:36
Rank: #5100 (-233)
Half → 25K
16:59 | 7:00/mi
30K· 18.64 mi
2:07:35
Rank: #5548 (-448)
25K → 30K
22:59 | 7:24/mi
20M
2:18:20
Rank: #5847 (-299)
30K → 20M
10:45 | 7:55/mi
21M
2:26:54
Rank: #6057 (-210)
20M → 21M
8:34 | 8:34/mi
35K· 21.75 mi
2:32:41
Rank: #6148 (-91)
21M → 35K
5:47 | 7:44/mi
23M
2:42:52
Rank: #6307 (-159)
35K → 23M
10:11 | 8:08/mi
24M
2:50:56
Rank: #6446 (-139)
23M → 24M
8:04 | 8:04/mi
40K· 24.85 mi
2:57:57
Rank: #6562 (-116)
24M → 40K
7:01 | 8:12/mi
25.2M
3:01:13
Rank: #6687 (-125)
40K → 25.2M
3:16 | 9:28/mi
Finish· 26.22 mi
3:09:30
Rank: #6912 (-225)
25.2M → Finish
8:17 | 8:08/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:37
Pace6:41 /mi
2nd Half
Distance13.11 mi
Time1:41:53
Pace7:46 /mi
📊Positive Split: 16.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:2820:126:3020:12
6:30
-
10K
6.21 mi10:43:1240:566:3520:44
6:40
+0:10
15K
9.32 mi11:03:431:01:276:3620:31
6:36
-0:04
20K
12.43 mi11:25:201:23:046:4121:37
6:57
+0:21
Half
13.11 mi11:29:531:27:376:414:33
6:40
-0:17
25K
15.53 mi11:46:521:44:366:4416:59
7:00
+0:20
30K
18.64 mi12:09:512:07:356:5122:59
7:24
+0:24
20M
20.00 mi12:20:362:18:206:5510:45
7:55
+0:31
21M
21.00 mi12:29:102:26:547:008:34
8:34
+0:39
35K
21.75 mi12:34:572:32:417:015:47
7:44
-0:50
23M
23.00 mi12:45:082:42:527:0510:11
8:08
+0:24
24M
24.00 mi12:53:122:50:567:078:04
8:04
-0:04
40K
24.85 mi13:00:132:57:577:107:01
8:12
+0:08
25.2M
25.20 mi13:03:293:01:137:113:16
9:28
+1:16
Finish
26.22 mi13:11:463:09:307:148:17
8:08
-1:20

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

6:30 /mi

Average Pace

7:14 /mi

Slowest Pace

9:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:36

55% of race

Time at Steady Pace

1:06:03

35% of race

Time at Slower Pace

18:51

10% of race

Average Pace: 7:14 /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 mi10:22:2820:126:3020:12
6:30
#3859
10K
6.21 mi10:43:1240:566:3520:44
6:40
#4408
15K
9.32 mi11:03:431:01:276:3620:31
6:36
#4346
20K
12.43 mi11:25:201:23:046:4121:37
6:57
#4862
Half
13.11 mi11:29:531:27:376:414:33
6:40
#4867
25K
15.53 mi11:46:521:44:366:4416:59
7:00
#5100
30K
18.64 mi12:09:512:07:356:5122:59
7:24
#5548
20M
20.00 mi12:20:362:18:206:5510:45
7:55
#5847
21M
21.00 mi12:29:102:26:547:008:34
8:34
#6057
35K
21.75 mi12:34:572:32:417:015:47
7:44
#6148
23M
23.00 mi12:45:082:42:527:0510:11
8:08
#6307
24M
24.00 mi12:53:122:50:567:078:04
8:04
#6446
40K
24.85 mi13:00:132:57:577:107:01
8:12
#6562
25.2M
25.20 mi13:03:293:01:137:113:16
9:28
#6687
Finish
26.22 mi13:11:463:09:307:148:17
8:08
#6912
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3859365236524271(Top 15%)4015(Top 25%)4015(Top 71%)
10K6.21 mi3.10 mi4408-5494147-4954147-4955108(Top 18%)4760(Top 30%)4760(Top 84%)
15K9.32 mi3.11 mi4346+624086+614086+614271(Top 15%)4015(Top 25%)4015(Top 71%)
20K12.43 mi3.11 mi4862-5164531-4454531-4456630(Top 23%)5928(Top 37%)5928(Top 105%)
Half13.11 mi0.68 mi4867-54536-54536-55075(Top 18%)4704(Top 29%)4704(Top 83%)
25K15.53 mi2.42 mi5100-2334729-1934729-1936365(Top 22%)5667(Top 35%)5667(Top 100%)
30K18.64 mi3.11 mi5548-4485076-3475076-3477032(Top 25%)5993(Top 37%)5993(Top 106%)
20M20.00 mi1.36 mi5847-2995305-2295305-2299781(Top 34%)7411(Top 46%)7411(Top 131%)
21M21.00 mi1.00 mi6057-2105450-1455450-14510854(Top 38%)7793(Top 48%)7793(Top 138%)
35K21.75 mi0.75 mi6148-915517-675517-6710235(Top 36%)7469(Top 46%)7469(Top 132%)
23M23.00 mi1.25 mi6307-1595611-945611-9410923(Top 38%)7699(Top 48%)7699(Top 136%)
24M24.00 mi1.00 mi6446-1395692-815692-8111655(Top 41%)7970(Top 49%)7970(Top 141%)
40K24.85 mi0.85 mi6562-1165742-505742-5011553(Top 41%)7831(Top 49%)7831(Top 139%)
25.2M25.20 mi0.35 mi6687-1255809-675809-6714337(Top 50%)9066(Top 56%)9066(Top 161%)
Finish26.22 mi1.02 mi6912-2255937-1285937-12813754(Top 48%)8878(Top 55%)8878(Top 157%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 15%
×21stories
+97ft-345ft

Overall

4271

Males

4015

M18-39

4015

5K→10K

3.1 - 6.2 mi

Top 18%
×5stories
+79ft-138ft

Overall

5108

Males

4760

M18-39

4760

10K→15K

6.2 - 9.3 mi

Top 15%
×3stories
+67ft-78ft

Overall

4271

Males

4015

M18-39

4015

15K→20K

9.3 - 12.4 mi

Top 23%
×5stories
+106ft-86ft

Overall

6630

Males

5928

M18-39

5928

20K→Half

12.4 - 13.1 mi

Top 18%
×2stories
+19ft-37ft

Overall

5075

Males

4704

M18-39

4704

Half→25K

13.1 - 15.5 mi

Top 22%
×4stories
+66ft-88ft

Overall

6365

Males

5667

M18-39

5667

25K→30K

15.5 - 18.6 mi

Top 25%
×9stories
+181ft-148ft

Overall

7032

Males

5993

M18-39

5993

30K→20M

18.6 - 20.0 mi

Top 34%
×5stories
+64ft-50ft

Overall

9781

Males

7411

M18-39

7411

20M→21M

20.0 - 21.0 mi

Top 38%
×8stories
+106ft-24ft

Overall

10854

Males

7793

M18-39

7793

21M→35K

21.0 - 21.8 mi

Top 36%
×7stories
+17ft-86ft

Overall

10235

Males

7469

M18-39

7469

35K→23M

21.8 - 23.0 mi

Top 38%
×5stories
+23ft-63ft

Overall

10923

Males

7699

M18-39

7699

23M→24M

23.0 - 24.0 mi

Top 41%
×6stories
+12ft-82ft

Overall

11655

Males

7970

M18-39

7970

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

11553

Males

7831

M18-39

7831

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

14337

Males

9066

M18-39

9066

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2stories
+22ft-21ft

Overall

13754

Males

8878

M18-39

8878

Passing Analysis

Category:
Athletes Passed
526
Passed By
3579
Net Change
-3053
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3859
5K → 10K17566-549#3859#4408
10K → 15K13674+62#4408#4346
15K → 20K37553-516#4346#4862
20K → Half2227-5#4862#4867
Half → 25K52285-233#4867#5100
25K → 30K82530-448#5100#5548
30K → 20M13312-299#5548#5847
20M → 21M26236-210#5847#6057
21M → 35K18109-91#6057#6148
35K → 23M42201-159#6148#6307
23M → 24M31170-139#6307#6446
24M → 40K31147-116#6446#6562
40K → 25.2M7132-125#6562#6687
25.2M → Finish12237-225#6687#6912
TOTALS5263579-3053
📊

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