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BOSTON MARATHON 2023

David Shrekenhamer

Bib: 3366•M

MD

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 11%
Gender (Male)
#0 / 15176
Top 18%
Division (M18-39)
#0 / 5285
Top 38%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:26
Rank: #2711
Start → 5K
20:26 | 6:35/mi
10K· 6.21 mi
39:53
Rank: #2089 (+622)
5K → 10K
19:27 | 6:16/mi
15K· 9.32 mi
59:38
Rank: #1995 (+94)
10K → 15K
19:45 | 6:21/mi
20K· 12.43 mi
1:19:40
Rank: #1992 (+3)
15K → 20K
20:02 | 6:27/mi
Half· 13.11 mi
1:23:55
Rank: #1950 (+42)
20K → Half
4:15 | 6:14/mi
25K· 15.53 mi
1:39:43
Rank: #1981 (-31)
Half → 25K
15:48 | 6:31/mi
30K· 18.64 mi
2:00:30
Rank: #2052 (-71)
25K → 30K
20:47 | 6:41/mi
20M
2:10:42
Rank: #2319 (-267)
30K → 20M
10:12 | 7:30/mi
21M
2:17:56
Rank: #2332 (-13)
20M → 21M
7:14 | 7:14/mi
35K· 21.75 mi
2:23:05
Rank: #2377 (-45)
21M → 35K
5:09 | 6:53/mi
23M
2:33:09
Rank: #2720 (-343)
35K → 23M
10:04 | 8:02/mi
24M
2:40:02
Rank: #2754 (-34)
23M → 24M
6:53 | 6:53/mi
40K· 24.85 mi
2:46:02
Rank: #2779 (-25)
24M → 40K
6:00 | 7:01/mi
25.2M
2:48:38
Rank: #2793 (-14)
40K → 25.2M
2:36 | 7:32/mi
Finish· 26.22 mi
2:55:25
Rank: #2805 (-12)
25.2M → Finish
6:47 | 6:39/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:55
Pace6:24 /mi
2nd Half
Distance13.11 mi
Time1:31:30
Pace6:59 /mi
📊Positive Split: 9.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:5320:266:3520:26
6:35
-
10K
6.21 mi10:41:2039:536:2519:27
6:16
-0:19
15K
9.32 mi11:01:0559:386:2419:45
6:21
+0:05
20K
12.43 mi11:21:071:19:406:2520:02
6:27
+0:06
Half
13.11 mi11:25:221:23:556:244:15
6:14
-0:13
25K
15.53 mi11:41:101:39:436:2515:48
6:31
+0:17
30K
18.64 mi12:01:572:00:306:2820:47
6:41
+0:10
20M
20.00 mi12:12:092:10:426:3210:12
7:30
+0:49
21M
21.00 mi12:19:232:17:566:347:14
7:14
-0:16
35K
21.75 mi12:24:322:23:056:355:09
6:53
-0:21
23M
23.00 mi12:34:362:33:096:4010:04
8:02
+1:09
24M
24.00 mi12:41:292:40:026:406:53
6:53
-1:09
40K
24.85 mi12:47:292:46:026:416:00
7:01
+0:08
25.2M
25.20 mi12:50:052:48:386:422:36
7:32
+0:31
Finish
26.22 mi12:56:522:55:256:426:47
6:39
-0:53

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

6:14 /mi

Average Pace

6:42 /mi

Slowest Pace

8:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

43:27

25% of race

Time at Steady Pace

1:35:52

55% of race

Time at Slower Pace

36:06

21% of race

Average Pace: 6:41 /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 mi10:21:5320:266:3520:26
6:35
#2711
10K
6.21 mi10:41:2039:536:2519:27
6:16
#2089
15K
9.32 mi11:01:0559:386:2419:45
6:21
#1995
20K
12.43 mi11:21:071:19:406:2520:02
6:27
#1992
Half
13.11 mi11:25:221:23:556:244:15
6:14
#1950
25K
15.53 mi11:41:101:39:436:2515:48
6:31
#1981
30K
18.64 mi12:01:572:00:306:2820:47
6:41
#2052
20M
20.00 mi12:12:092:10:426:3210:12
7:30
#2319
21M
21.00 mi12:19:232:17:566:347:14
7:14
#2332
35K
21.75 mi12:24:322:23:056:355:09
6:53
#2377
23M
23.00 mi12:34:362:33:096:4010:04
8:02
#2720
24M
24.00 mi12:41:292:40:026:406:53
6:53
#2754
40K
24.85 mi12:47:292:46:026:416:00
7:01
#2779
25.2M
25.20 mi12:50:052:48:386:422:36
7:32
#2793
Finish
26.22 mi12:56:522:55:256:426:47
6:39
#2805
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2711258225821908(Top 7%)1828(Top 12%)1828(Top 35%)
10K6.21 mi3.10 mi2089+6221999+5831999+5831598(Top 6%)1528(Top 10%)1528(Top 29%)
15K9.32 mi3.11 mi1995+941910+891910+891908(Top 7%)1828(Top 12%)1828(Top 35%)
20K12.43 mi3.11 mi1992+31908+21908+22034(Top 8%)1953(Top 13%)1953(Top 37%)
Half13.11 mi0.68 mi1950+421867+411867+411531(Top 6%)1467(Top 10%)1467(Top 28%)
25K15.53 mi2.42 mi1981-311898-311898-312253(Top 8%)2161(Top 14%)2161(Top 41%)
30K18.64 mi3.11 mi2052-711968-701968-702351(Top 9%)2240(Top 15%)2240(Top 42%)
20M20.00 mi1.36 mi2319-2672226-2582226-2586779(Top 25%)5819(Top 38%)5819(Top 110%)
21M21.00 mi1.00 mi2332-132234-82234-83267(Top 12%)3047(Top 20%)3047(Top 58%)
35K21.75 mi0.75 mi2377-452277-432277-434638(Top 17%)4203(Top 28%)4203(Top 80%)
23M23.00 mi1.25 mi2720-3432598-3212598-3219993(Top 38%)7462(Top 49%)7462(Top 141%)
24M24.00 mi1.00 mi2754-342625-272625-274073(Top 15%)3704(Top 24%)3704(Top 70%)
40K24.85 mi0.85 mi2779-252641-162641-163903(Top 15%)3506(Top 23%)3506(Top 66%)
25.2M25.20 mi0.35 mi2793-142654-132654-134001(Top 15%)3543(Top 23%)3543(Top 67%)
Finish26.22 mi1.02 mi2805-122664-102664-103257(Top 12%)2929(Top 19%)2929(Top 55%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21stories
+97ft-345ft

Overall

1908

Males

1828

M18-39

1828

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1598

Males

1528

M18-39

1528

10K→15K

6.2 - 9.3 mi

Top 7%
×3stories
+67ft-78ft

Overall

1908

Males

1828

M18-39

1828

15K→20K

9.3 - 12.4 mi

Top 8%
×5stories
+106ft-86ft

Overall

2034

Males

1953

M18-39

1953

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1531

Males

1467

M18-39

1467

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2253

Males

2161

M18-39

2161

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2351

Males

2240

M18-39

2240

30K→20M

18.6 - 20.0 mi

Top 25%
×5stories
+64ft-50ft

Overall

6779

Males

5819

M18-39

5819

20M→21M

20.0 - 21.0 mi

Top 12%
×8stories
+106ft-24ft

Overall

3267

Males

3047

M18-39

3047

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4638

Males

4203

M18-39

4203

35K→23M

21.8 - 23.0 mi

Top 38%
×5stories
+23ft-63ft

Overall

9993

Males

7462

M18-39

7462

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

4073

Males

3704

M18-39

3704

24M→40K

24.0 - 24.9 mi

Top 15%
×1story
+6ft-20ft

Overall

3903

Males

3506

M18-39

3506

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1story
+13ft-16ft

Overall

4001

Males

3543

M18-39

3543

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2stories
+22ft-21ft

Overall

3257

Males

2929

M18-39

2929

Passing Analysis

Category:
Athletes Passed
1074
Passed By
1168
Net Change
-94
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2711
5K → 10K6253+622#2711#2089
10K → 15K11723+94#2089#1995
15K → 20K5350+3#1995#1992
20K → Half442+42#1992#1950
Half → 25K3061-31#1950#1981
25K → 30K48119-71#1981#2052
30K → 20M6273-267#2052#2319
20M → 21M2639-13#2319#2332
21M → 35K1560-45#2332#2377
35K → 23M4347-343#2377#2720
23M → 24M3266-34#2720#2754
24M → 40K3156-25#2754#2779
40K → 25.2M1125-14#2779#2793
25.2M → Finish3244-12#2793#2805
TOTALS10741168-94
📊

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