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BOSTON MARATHON 2023

William Clem

Bib: 21913•M

MD

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Top 45%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:29
Rank: #17710
Start → 5K
8:31/mi
26:29 split
10K· 6.21 mi
52:35
Rank: #17651 (+59)
5K → 10K
8:24/mi
26:06 split
15K· 9.32 mi
1:18:57
Rank: #17657 (-6)
10K → 15K
8:29/mi
26:22 split
20K· 12.43 mi
1:46:36
Rank: #18074 (-417)
15K → 20K
8:54/mi
27:39 split
Half· 13.11 mi
1:52:27
Rank: #18073 (+1)
20K → Half
8:34/mi
5:51 split
25K· 15.53 mi
2:14:20
Rank: #18248 (-175)
Half → 25K
9:02/mi
21:53 split
30K· 18.64 mi
2:42:29
Rank: #18077 (+171)
25K → 30K
9:04/mi
28:09 split
20M
2:54:12
Rank: #17777 (+300)
30K → 20M
8:37/mi
11:43 split
21M
3:04:04
Rank: #17764 (+13)
20M → 21M
9:52/mi
9:52 split
35K· 21.75 mi
3:10:18
Rank: #17638 (+126)
21M → 35K
8:20/mi
6:14 split
23M
3:20:51
Rank: #17360 (+278)
35K → 23M
8:26/mi
10:33 split
24M
3:29:05
Rank: #17153 (+207)
23M → 24M
8:14/mi
8:14 split
40K· 24.85 mi
3:36:10
Rank: #16975 (+178)
24M → 40K
8:17/mi
7:05 split
25.2M
3:39:30
Rank: #16962 (+13)
40K → 25.2M
9:40/mi
3:20 split
Finish· 26.22 mi
3:47:46
Rank: #16802 (+160)
25.2M → Finish
8:07/mi
8:16 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:27
Pace8:35 /mi
2nd Half
Distance13.11 mi
Time1:55:19
Pace8:48 /mi
📊Positive Split: 2.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:2126:298:3126:29
8:31
-
10K
6.21 mi11:47:2752:358:2826:06
8:24
-0:07
15K
9.32 mi12:13:491:18:578:2826:22
8:29
+0:05
20K
12.43 mi12:41:281:46:368:3527:39
8:54
+0:25
Half
13.11 mi12:47:191:52:278:355:51
8:34
-0:20
25K
15.53 mi13:09:122:14:208:3921:53
9:02
+0:28
30K
18.64 mi13:37:212:42:298:4328:09
9:04
+0:02
20M
20.00 mi13:49:042:54:128:4311:43
8:37
-0:27
21M
21.00 mi13:58:563:04:048:469:52
9:52
+1:15
35K
21.75 mi14:05:103:10:188:456:14
8:20
-1:32
23M
23.00 mi14:15:433:20:518:4410:33
8:26
+0:06
24M
24.00 mi14:23:573:29:058:438:14
8:14
-0:12
40K
24.85 mi14:31:023:36:108:427:05
8:17
+0:03
25.2M
25.20 mi14:34:223:39:308:433:20
9:40
+1:23
Finish
26.22 mi14:42:383:47:468:428:16
8:07
-1:33

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

8:07 /mi

Average Pace

8:42 /mi

Slowest Pace

9:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

16:30

7% of race

Time at Steady Pace

2:00:23

53% of race

Time at Slower Pace

1:30:53

40% of race

Average Pace: 8:41 /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 mi11:21:2126:298:3126:29
8:31
#17710
10K
6.21 mi11:47:2752:358:2826:06
8:24
#17651
15K
9.32 mi12:13:491:18:578:2826:22
8:29
#17657
20K
12.43 mi12:41:281:46:368:3527:39
8:54
#18074
Half
13.11 mi12:47:191:52:278:355:51
8:34
#18073
25K
15.53 mi13:09:122:14:208:3921:53
9:02
#18248
30K
18.64 mi13:37:212:42:298:4328:09
9:04
#18077
20M
20.00 mi13:49:042:54:128:4311:43
8:37
#17777
21M
21.00 mi13:58:563:04:048:469:52
9:52
#17764
35K
21.75 mi14:05:103:10:188:456:14
8:20
#17638
23M
23.00 mi14:15:433:20:518:4410:33
8:26
#17360
24M
24.00 mi14:23:573:29:058:438:14
8:14
#17153
40K
24.85 mi14:31:023:36:108:427:05
8:17
#16975
25.2M
25.20 mi14:34:223:39:308:433:20
9:40
#16962
Finish
26.22 mi14:42:383:47:468:428:16
8:07
#16802
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi17710113111131117706(Top 67%)11347(Top 75%)11347(Top 1022%)
10K6.21 mi3.10 mi17651+5911314-311314-317582(Top 66%)11329(Top 75%)11329(Top 1021%)
15K9.32 mi3.11 mi17657-611327-1311327-1317706(Top 67%)11347(Top 75%)11347(Top 1022%)
20K12.43 mi3.11 mi18074-41711495-16811495-16819194(Top 72%)11965(Top 79%)11965(Top 1078%)
Half13.11 mi0.68 mi18073+111500-511500-518117(Top 68%)11523(Top 76%)11523(Top 1038%)
25K15.53 mi2.42 mi18248-17511549-4911549-4919073(Top 72%)11877(Top 78%)11877(Top 1070%)
30K18.64 mi3.11 mi18077+17111444+10511444+10517484(Top 66%)11117(Top 73%)11117(Top 1002%)
20M20.00 mi1.36 mi17777+30011311+13311311+13314399(Top 54%)9745(Top 64%)9745(Top 878%)
21M21.00 mi1.00 mi17764+1311296+1511296+1517492(Top 66%)10993(Top 72%)10993(Top 990%)
35K21.75 mi0.75 mi17638+12611229+6711229+6714280(Top 54%)9558(Top 63%)9558(Top 861%)
23M23.00 mi1.25 mi17360+27811105+12411105+12412746(Top 48%)8804(Top 58%)8804(Top 793%)
24M24.00 mi1.00 mi17153+20711003+10211003+10212825(Top 48%)8783(Top 58%)8783(Top 791%)
40K24.85 mi0.85 mi16975+17810906+9710906+9711915(Top 45%)8294(Top 55%)8294(Top 747%)
25.2M25.20 mi0.35 mi16962+1310892+1410892+1415925(Top 60%)10089(Top 66%)10089(Top 909%)
Finish26.22 mi1.02 mi16802+16010820+7210820+7212853(Top 48%)8707(Top 57%)8707(Top 784%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 67%
×21story building
+97ft-345ft

Overall

17706

Males

11347

M60-64

11347

5K→10K

3.1 - 6.2 mi

Top 66%
×5story building
+79ft-138ft

Overall

17582

Males

11329

M60-64

11329

10K→15K

6.2 - 9.3 mi

Top 67%
×3story building
+67ft-78ft

Overall

17706

Males

11347

M60-64

11347

15K→20K

9.3 - 12.4 mi

Top 72%
×5story building
+106ft-86ft

Overall

19194

Males

11965

M60-64

11965

20K→Half

12.4 - 13.1 mi

Top 68%
×2story building
+19ft-37ft

Overall

18117

Males

11523

M60-64

11523

Half→25K

13.1 - 15.5 mi

Top 72%
×4story building
+66ft-88ft

Overall

19073

Males

11877

M60-64

11877

25K→30K

15.5 - 18.6 mi

Top 66%
×9story building
+181ft-148ft

Overall

17484

Males

11117

M60-64

11117

30K→20M

18.6 - 20.0 mi

Top 54%
×5story building
+64ft-50ft

Overall

14399

Males

9745

M60-64

9745

20M→21M

20.0 - 21.0 mi

Top 66%
×8story building
+106ft-24ft

Overall

17492

Males

10993

M60-64

10993

21M→35K

21.0 - 21.8 mi

Top 54%
×7story building
+17ft-86ft

Overall

14280

Males

9558

M60-64

9558

35K→23M

21.8 - 23.0 mi

Top 48%
×5story building
+23ft-63ft

Overall

12746

Males

8804

M60-64

8804

23M→24M

23.0 - 24.0 mi

Top 48%
×6story building
+12ft-82ft

Overall

12825

Males

8783

M60-64

8783

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

11915

Males

8294

M60-64

8294

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

15925

Males

10089

M60-64

10089

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2story building
+22ft-21ft

Overall

12853

Males

8707

M60-64

8707

Passing Analysis

Category:
Athletes Passed
2383
Passed By
1475
Net Change
+908
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17710
5K → 10K336277+59#17710#17651
10K → 15K190196-6#17651#17657
15K → 20K81498-417#17657#18074
20K → Half2726+1#18074#18073
Half → 25K78253-175#18073#18248
25K → 30K274103+171#18248#18077
30K → 20M3011+300#18077#17777
20M → 21M9178+13#17777#17764
21M → 35K1282+126#17764#17638
35K → 23M2802+278#17638#17360
23M → 24M2103+207#17360#17153
24M → 40K1813+178#17153#16975
40K → 25.2M3522+13#16975#16962
25.2M → Finish17111+160#16962#16802
TOTALS23831475+908
📊

Passing Visuals

Category:
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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