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BOSTON MARATHON 2023

William Summerhays

Bib: 14443•M

HI

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M50-54)
#0 / 2052
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:29
Rank: #10141
Start → 5K
23:29 | 7:34/mi
10K· 6.21 mi
48:12
Rank: #12335 (-2194)
5K → 10K
24:43 | 7:57/mi
15K· 9.32 mi
1:13:56
Rank: #13835 (-1500)
10K → 15K
25:44 | 8:17/mi
20K· 12.43 mi
1:38:08
Rank: #13291 (+544)
15K → 20K
24:12 | 7:47/mi
Half· 13.11 mi
1:43:29
Rank: #13260 (+31)
20K → Half
5:21 | 7:50/mi
25K· 15.53 mi
2:02:48
Rank: #13089 (+171)
Half → 25K
19:19 | 7:58/mi
30K· 18.64 mi
2:28:08
Rank: #12872 (+217)
25K → 30K
25:20 | 8:09/mi
20M
2:39:35
Rank: #12873 (-1)
30K → 20M
11:27 | 8:26/mi
21M
2:48:56
Rank: #13016 (-143)
20M → 21M
9:21 | 9:21/mi
35K· 21.75 mi
2:55:26
Rank: #13144 (-128)
21M → 35K
6:30 | 8:41/mi
23M
3:07:11
Rank: #13507 (-363)
35K → 23M
11:45 | 9:23/mi
24M
3:16:22
Rank: #13744 (-237)
23M → 24M
9:11 | 9:11/mi
40K· 24.85 mi
3:24:12
Rank: #13868 (-124)
24M → 40K
7:50 | 9:10/mi
25.2M
3:27:40
Rank: #13945 (-77)
40K → 25.2M
3:28 | 10:03/mi
Finish· 26.22 mi
3:36:08
Rank: #13948 (-3)
25.2M → Finish
8:28 | 8:19/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:29
Pace7:54 /mi
2nd Half
Distance13.11 mi
Time1:52:39
Pace8:36 /mi
📊Positive Split: 8.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:1123:297:3423:29
7:34
-
10K
6.21 mi11:17:5448:127:4524:43
7:57
+0:23
15K
9.32 mi11:43:381:13:567:5625:44
8:17
+0:20
20K
12.43 mi12:07:501:38:087:5424:12
7:47
-0:30
Half
13.11 mi12:13:111:43:297:545:21
7:50
+0:03
25K
15.53 mi12:32:302:02:487:5419:19
7:58
+0:08
30K
18.64 mi12:57:502:28:087:5725:20
8:09
+0:11
20M
20.00 mi13:09:172:39:357:5911:27
8:26
+0:17
21M
21.00 mi13:18:382:48:568:039:21
9:21
+0:55
35K
21.75 mi13:25:082:55:268:046:30
8:41
-0:40
23M
23.00 mi13:36:533:07:118:0811:45
9:23
+0:42
24M
24.00 mi13:46:043:16:228:119:11
9:11
-0:12
40K
24.85 mi13:53:543:24:128:137:50
9:10
-0:01
25.2M
25.20 mi13:57:223:27:408:143:28
10:03
+0:53
Finish
26.22 mi14:05:503:36:088:158:28
8:19
-1:44

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

7:34 /mi

Average Pace

8:15 /mi

Slowest Pace

10:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:17:45

36% of race

Time at Steady Pace

1:30:18

42% of race

Time at Slower Pace

48:05

22% of race

Average Pace: 8:15 /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 mi10:53:1123:297:3423:29
7:34
#10141
10K
6.21 mi11:17:5448:127:4524:43
7:57
#12335
15K
9.32 mi11:43:381:13:567:5625:44
8:17
#13835
20K
12.43 mi12:07:501:38:087:5424:12
7:47
#13291
Half
13.11 mi12:13:111:43:297:545:21
7:50
#13260
25K
15.53 mi12:32:302:02:487:5419:19
7:58
#13089
30K
18.64 mi12:57:502:28:087:5725:20
8:09
#12872
20M
20.00 mi13:09:172:39:357:5911:27
8:26
#12873
21M
21.00 mi13:18:382:48:568:039:21
9:21
#13016
35K
21.75 mi13:25:082:55:268:046:30
8:41
#13144
23M
23.00 mi13:36:533:07:118:0811:45
9:23
#13507
24M
24.00 mi13:46:043:16:228:119:11
9:11
#13744
40K
24.85 mi13:53:543:24:128:137:50
9:10
#13868
25.2M
25.20 mi13:57:223:27:408:143:28
10:03
#13945
Finish
26.22 mi14:05:503:36:088:158:28
8:19
#13948
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi101418205820516418(Top 62%)10850(Top 71%)10850(Top 529%)
10K6.21 mi3.10 mi12335-21949257-10529257-105214433(Top 54%)10091(Top 66%)10091(Top 492%)
15K9.32 mi3.11 mi13835-15009857-6009857-60016418(Top 62%)10850(Top 71%)10850(Top 529%)
20K12.43 mi3.11 mi13291+5449622+2359622+23511648(Top 44%)8871(Top 58%)8871(Top 432%)
Half13.11 mi0.68 mi13260+319604+189604+1813068(Top 49%)9525(Top 63%)9525(Top 464%)
25K15.53 mi2.42 mi13089+1719532+729532+7212457(Top 47%)9109(Top 60%)9109(Top 444%)
30K18.64 mi3.11 mi12872+2179380+1529380+15212023(Top 45%)8816(Top 58%)8816(Top 430%)
20M20.00 mi1.36 mi12873-19361+199361+1913154(Top 49%)9199(Top 61%)9199(Top 448%)
21M21.00 mi1.00 mi13016-1439404-439404-4315234(Top 57%)10027(Top 66%)10027(Top 489%)
35K21.75 mi0.75 mi13144-1289450-469450-4616319(Top 61%)10405(Top 69%)10405(Top 507%)
23M23.00 mi1.25 mi13507-3639571-1219571-12117855(Top 67%)11049(Top 73%)11049(Top 538%)
24M24.00 mi1.00 mi13744-2379629-589629-5817976(Top 68%)11061(Top 73%)11061(Top 539%)
40K24.85 mi0.85 mi13868-1249659-309659-3016891(Top 63%)10527(Top 69%)10527(Top 513%)
25.2M25.20 mi0.35 mi13945-779685-269685-2617523(Top 66%)10780(Top 71%)10780(Top 525%)
Finish26.22 mi1.02 mi13948-39667+189667+1814140(Top 53%)9306(Top 61%)9306(Top 454%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21stories
+97ft-345ft

Overall

16418

Males

10850

M50-54

10850

5K→10K

3.1 - 6.2 mi

Top 54%
×5stories
+79ft-138ft

Overall

14433

Males

10091

M50-54

10091

10K→15K

6.2 - 9.3 mi

Top 62%
×3stories
+67ft-78ft

Overall

16418

Males

10850

M50-54

10850

15K→20K

9.3 - 12.4 mi

Top 44%
×5stories
+106ft-86ft

Overall

11648

Males

8871

M50-54

8871

20K→Half

12.4 - 13.1 mi

Top 49%
×2stories
+19ft-37ft

Overall

13068

Males

9525

M50-54

9525

Half→25K

13.1 - 15.5 mi

Top 47%
×4stories
+66ft-88ft

Overall

12457

Males

9109

M50-54

9109

25K→30K

15.5 - 18.6 mi

Top 45%
×9stories
+181ft-148ft

Overall

12023

Males

8816

M50-54

8816

30K→20M

18.6 - 20.0 mi

Top 49%
×5stories
+64ft-50ft

Overall

13154

Males

9199

M50-54

9199

20M→21M

20.0 - 21.0 mi

Top 57%
×8stories
+106ft-24ft

Overall

15234

Males

10027

M50-54

10027

21M→35K

21.0 - 21.8 mi

Top 61%
×7stories
+17ft-86ft

Overall

16319

Males

10405

M50-54

10405

35K→23M

21.8 - 23.0 mi

Top 67%
×5stories
+23ft-63ft

Overall

17855

Males

11049

M50-54

11049

23M→24M

23.0 - 24.0 mi

Top 68%
×6stories
+12ft-82ft

Overall

17976

Males

11061

M50-54

11061

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

16891

Males

10527

M50-54

10527

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

17523

Males

10780

M50-54

10780

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2stories
+22ft-21ft

Overall

14140

Males

9306

M50-54

9306

Passing Analysis

Category:
Athletes Passed
1500
Passed By
5307
Net Change
-3807
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10141
5K → 10K152209-2194#10141#12335
10K → 15K101510-1500#12335#13835
15K → 20K55612+544#13835#13291
20K → Half4716+31#13291#13260
Half → 25K23867+171#13260#13089
25K → 30K29578+217#13089#12872
30K → 20M101102-1#12872#12873
20M → 21M60203-143#12873#13016
21M → 35K21149-128#13016#13144
35K → 23M21384-363#13144#13507
23M → 24M25262-237#13507#13744
24M → 40K37161-124#13744#13868
40K → 25.2M986-77#13868#13945
25.2M → Finish6568-3#13945#13948
TOTALS15005307-3807
📊

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