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BOSTON MARATHON 2023

Walter Massefski

Bib: 20766•M

MA

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
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:32
Rank: #19807
Start → 5K
27:32 | 8:52/mi
10K· 6.21 mi
56:06
Rank: #20757 (-950)
5K → 10K
28:34 | 9:12/mi
15K· 9.32 mi
1:22:55
Rank: #20103 (+654)
10K → 15K
26:49 | 8:38/mi
20K· 12.43 mi
1:53:12
Rank: #20817 (-714)
15K → 20K
30:17 | 9:45/mi
Half· 13.11 mi
1:59:09
Rank: #20727 (+90)
20K → Half
5:57 | 8:43/mi
25K· 15.53 mi
2:21:25
Rank: #20582 (+145)
Half → 25K
22:16 | 9:11/mi
30K· 18.64 mi
2:56:33
Rank: #21385 (-803)
25K → 30K
35:08 | 11:18/mi
20M
3:10:06
Rank: #21293 (+92)
30K → 20M
13:33 | 9:58/mi
21M
3:21:16
Rank: #21293
20M → 21M
11:10 | 11:10/mi
35K· 21.75 mi
3:28:41
Rank: #21282 (+11)
21M → 35K
7:25 | 9:55/mi
23M
3:42:00
Rank: #21300 (-18)
35K → 23M
13:19 | 10:38/mi
24M
3:52:23
Rank: #21314 (-14)
23M → 24M
10:23 | 10:23/mi
40K· 24.85 mi
4:01:19
Rank: #21305 (+9)
24M → 40K
8:56 | 10:27/mi
25.2M
4:05:08
Rank: #21285 (+20)
40K → 25.2M
3:49 | 11:04/mi
Finish· 26.22 mi
4:15:24
Rank: #21312 (-27)
25.2M → Finish
10:16 | 10:04/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:09
Pace9:05 /mi
2nd Half
Distance13.11 mi
Time2:16:15
Pace10:24 /mi
📊Positive Split: 14.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:0627:328:5227:32
8:52
-
10K
6.21 mi11:52:4056:069:0228:34
9:12
+0:20
15K
9.32 mi12:19:291:22:558:5426:49
8:38
-0:34
20K
12.43 mi12:49:461:53:129:0730:17
9:45
+1:07
Half
13.11 mi12:55:431:59:099:055:57
8:43
-1:02
25K
15.53 mi13:17:592:21:259:0622:16
9:11
+0:28
30K
18.64 mi13:53:072:56:339:2835:08
11:18
+2:07
20M
20.00 mi14:06:403:10:069:3013:33
9:58
-1:20
21M
21.00 mi14:17:503:21:169:3511:10
11:10
+1:12
35K
21.75 mi14:25:153:28:419:367:25
9:55
-1:15
23M
23.00 mi14:38:343:42:009:3913:19
10:38
+0:43
24M
24.00 mi14:48:573:52:239:4110:23
10:23
-0:15
40K
24.85 mi14:57:534:01:199:438:56
10:27
+0:04
25.2M
25.20 mi15:01:424:05:089:443:49
11:04
+0:37
Finish
26.22 mi15:11:584:15:249:4510:16
10:04
-1:00

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

8:38 /mi

Average Pace

9:45 /mi

Slowest Pace

11:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:51:08

44% of race

Time at Steady Pace

1:11:54

28% of race

Time at Slower Pace

1:12:22

28% of race

Average Pace: 9:44 /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 mi11:24:0627:328:5227:32
8:52
#19807
10K
6.21 mi11:52:4056:069:0228:34
9:12
#20757
15K
9.32 mi12:19:291:22:558:5426:49
8:38
#20103
20K
12.43 mi12:49:461:53:129:0730:17
9:45
#20817
Half
13.11 mi12:55:431:59:099:055:57
8:43
#20727
25K
15.53 mi13:17:592:21:259:0622:16
9:11
#20582
30K
18.64 mi13:53:072:56:339:2835:08
11:18
#21385
20M
20.00 mi14:06:403:10:069:3013:33
9:58
#21293
21M
21.00 mi14:17:503:21:169:3511:10
11:10
#21293
35K
21.75 mi14:25:153:28:419:367:25
9:55
#21282
23M
23.00 mi14:38:343:42:009:3913:19
10:38
#21300
24M
24.00 mi14:48:573:52:239:4110:23
10:23
#21314
40K
24.85 mi14:57:534:01:199:438:56
10:27
#21305
25.2M
25.20 mi15:01:424:05:089:443:49
11:04
#21285
Finish
26.22 mi15:11:584:15:249:4510:16
10:04
#21312
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi19807120961209618626(Top 70%)11735(Top 77%)11735(Top 1057%)
10K6.21 mi3.10 mi20757-95012563-46712563-46721604(Top 81%)12983(Top 86%)12983(Top 1170%)
15K9.32 mi3.11 mi20103+65412285+27812285+27818626(Top 70%)11735(Top 77%)11735(Top 1057%)
20K12.43 mi3.11 mi20817-71412627-34212627-34222271(Top 84%)13303(Top 88%)13303(Top 1198%)
Half13.11 mi0.68 mi20727+9012584+4312584+4319052(Top 72%)11928(Top 79%)11928(Top 1075%)
25K15.53 mi2.42 mi20582+14512536+4812536+4819763(Top 74%)12179(Top 80%)12179(Top 1097%)
30K18.64 mi3.11 mi21385-80312870-33412870-33423590(Top 89%)13792(Top 91%)13792(Top 1243%)
20M20.00 mi1.36 mi21293+9212810+6012810+6020401(Top 77%)12302(Top 81%)12302(Top 1108%)
21M21.00 mi1.00 mi2129312798+1212798+1221183(Top 80%)12602(Top 83%)12602(Top 1135%)
35K21.75 mi0.75 mi21282+1112787+1112787+1121030(Top 79%)12503(Top 82%)12503(Top 1126%)
23M23.00 mi1.25 mi21300-1812780+712780+721625(Top 81%)12741(Top 84%)12741(Top 1148%)
24M24.00 mi1.00 mi21314-1412775+512775+521739(Top 82%)12746(Top 84%)12746(Top 1148%)
40K24.85 mi0.85 mi21305+912766+912766+921082(Top 79%)12398(Top 82%)12398(Top 1117%)
25.2M25.20 mi0.35 mi21285+2012754+1212754+1220595(Top 77%)12202(Top 80%)12202(Top 1099%)
Finish26.22 mi1.02 mi21312-2712758-412758-421957(Top 82%)12840(Top 85%)12840(Top 1157%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21stories
+97ft-345ft

Overall

18626

Males

11735

M60-64

11735

5K→10K

3.1 - 6.2 mi

Top 81%
×5stories
+79ft-138ft

Overall

21604

Males

12983

M60-64

12983

10K→15K

6.2 - 9.3 mi

Top 70%
×3stories
+67ft-78ft

Overall

18626

Males

11735

M60-64

11735

15K→20K

9.3 - 12.4 mi

Top 84%
×5stories
+106ft-86ft

Overall

22271

Males

13303

M60-64

13303

20K→Half

12.4 - 13.1 mi

Top 72%
×2stories
+19ft-37ft

Overall

19052

Males

11928

M60-64

11928

Half→25K

13.1 - 15.5 mi

Top 74%
×4stories
+66ft-88ft

Overall

19763

Males

12179

M60-64

12179

25K→30K

15.5 - 18.6 mi

Top 89%
×9stories
+181ft-148ft

Overall

23590

Males

13792

M60-64

13792

30K→20M

18.6 - 20.0 mi

Top 77%
×5stories
+64ft-50ft

Overall

20401

Males

12302

M60-64

12302

20M→21M

20.0 - 21.0 mi

Top 80%
×8stories
+106ft-24ft

Overall

21183

Males

12602

M60-64

12602

21M→35K

21.0 - 21.8 mi

Top 79%
×7stories
+17ft-86ft

Overall

21030

Males

12503

M60-64

12503

35K→23M

21.8 - 23.0 mi

Top 81%
×5stories
+23ft-63ft

Overall

21625

Males

12741

M60-64

12741

23M→24M

23.0 - 24.0 mi

Top 82%
×6stories
+12ft-82ft

Overall

21739

Males

12746

M60-64

12746

24M→40K

24.0 - 24.9 mi

Top 79%
×1story
+6ft-20ft

Overall

21082

Males

12398

M60-64

12398

40K→25.2M

24.9 - 25.2 mi

Top 77%
×1story
+13ft-16ft

Overall

20595

Males

12202

M60-64

12202

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2stories
+22ft-21ft

Overall

21957

Males

12840

M60-64

12840

Passing Analysis

Category:
Athletes Passed
1475
Passed By
2980
Net Change
-1505
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19807
5K → 10K531003-950#19807#20757
10K → 15K67016+654#20757#20103
15K → 20K38752-714#20103#20817
20K → Half911+90#20817#20727
Half → 25K18742+145#20727#20582
25K → 30K16819-803#20582#21385
30K → 20M12028+92#21385#21293
20M → 21M65650#21293#21293
21M → 35K3827+11#21293#21282
35K → 23M6078-18#21282#21300
23M → 24M3852-14#21300#21314
24M → 40K4334+9#21314#21305
40K → 25.2M3515+20#21305#21285
25.2M → Finish2148-27#21285#21312
TOTALS14752980-1505
📊

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