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BOSTON MARATHON 2023

Mike Korfhage

Bib: 6197•M

KY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 14%
Gender (Male)
#0 / 15176
Top 23%
Masters (Masters Men)
#0 / 9891
Top 10%
Division (M50-54)
#0 / 2052
Top 6%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:20
Rank: #5259
Start → 5K
21:20 | 6:52/mi
10K· 6.21 mi
42:07
Rank: #4771 (+488)
5K → 10K
20:47 | 6:41/mi
15K· 9.32 mi
1:03:05
Rank: #4679 (+92)
10K → 15K
20:58 | 6:45/mi
20K· 12.43 mi
1:24:08
Rank: #4548 (+131)
15K → 20K
21:03 | 6:47/mi
Half· 13.11 mi
1:28:47
Rank: #4582 (-34)
20K → Half
4:39 | 6:49/mi
25K· 15.53 mi
1:45:15
Rank: #4452 (+130)
Half → 25K
16:28 | 6:47/mi
30K· 18.64 mi
2:06:44
Rank: #4303 (+149)
25K → 30K
21:29 | 6:55/mi
20M
2:16:08
Rank: #4219 (+84)
30K → 20M
9:24 | 6:55/mi
21M
2:23:17
Rank: #4078 (+141)
20M → 21M
7:09 | 7:09/mi
35K· 21.75 mi
2:28:20
Rank: #4053 (+25)
21M → 35K
5:03 | 6:45/mi
23M
2:36:57
Rank: #3970 (+83)
35K → 23M
8:37 | 6:53/mi
24M
2:43:45
Rank: #3942 (+28)
23M → 24M
6:48 | 6:48/mi
40K· 24.85 mi
2:49:31
Rank: #3846 (+96)
24M → 40K
5:46 | 6:45/mi
25.2M
2:52:02
Rank: #3814 (+32)
40K → 25.2M
2:31 | 7:18/mi
Finish· 26.22 mi
2:58:36
Rank: #3697 (+117)
25.2M → Finish
6:34 | 6:27/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:47
Pace6:46 /mi
2nd Half
Distance13.11 mi
Time1:29:49
Pace6:51 /mi
📊Positive Split: 1.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:5621:206:5221:20
6:52
-
10K
6.21 mi10:45:4342:076:4720:47
6:41
-0:11
15K
9.32 mi11:06:411:03:056:4620:58
6:45
+0:04
20K
12.43 mi11:27:441:24:086:4621:03
6:47
+0:02
Half
13.11 mi11:32:231:28:476:464:39
6:49
+0:02
25K
15.53 mi11:48:511:45:156:4716:28
6:47
-0:02
30K
18.64 mi12:10:202:06:446:4821:29
6:55
+0:08
20M
20.00 mi12:19:442:16:086:489:24
6:55
0:00
21M
21.00 mi12:26:532:23:176:497:09
7:09
+0:14
35K
21.75 mi12:31:562:28:206:495:03
6:45
-0:24
23M
23.00 mi12:40:332:36:576:498:37
6:53
+0:08
24M
24.00 mi12:47:212:43:456:496:48
6:48
-0:05
40K
24.85 mi12:53:072:49:316:495:46
6:45
-0:03
25.2M
25.20 mi12:55:382:52:026:502:31
7:18
+0:33
Finish
26.22 mi13:02:122:58:366:496:34
6:27
-0:51

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

6:27 /mi

Average Pace

6:49 /mi

Slowest Pace

7:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:48:56

95% of race

Time at Steady Pace

9:40

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:49 /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 mi10:24:5621:206:5221:20
6:52
#5259
10K
6.21 mi10:45:4342:076:4720:47
6:41
#4771
15K
9.32 mi11:06:411:03:056:4620:58
6:45
#4679
20K
12.43 mi11:27:441:24:086:4621:03
6:47
#4548
Half
13.11 mi11:32:231:28:476:464:39
6:49
#4582
25K
15.53 mi11:48:511:45:156:4716:28
6:47
#4452
30K
18.64 mi12:10:202:06:446:4821:29
6:55
#4303
20M
20.00 mi12:19:442:16:086:489:24
6:55
#4219
21M
21.00 mi12:26:532:23:176:497:09
7:09
#4078
35K
21.75 mi12:31:562:28:206:495:03
6:45
#4053
23M
23.00 mi12:40:332:36:576:498:37
6:53
#3970
24M
24.00 mi12:47:212:43:456:496:48
6:48
#3942
40K
24.85 mi12:53:072:49:316:495:46
6:45
#3846
25.2M
25.20 mi12:55:382:52:026:502:31
7:18
#3814
Finish
26.22 mi13:02:122:58:366:496:34
6:27
#3697
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi5259486648664574(Top 17%)4270(Top 28%)4270(Top 208%)
10K6.21 mi3.10 mi4771+4884440+4264440+4264229(Top 16%)3962(Top 26%)3962(Top 193%)
15K9.32 mi3.11 mi4679+924360+804360+804574(Top 17%)4270(Top 28%)4270(Top 208%)
20K12.43 mi3.11 mi4548+1314247+1134247+1134207(Top 16%)3938(Top 26%)3938(Top 192%)
Half13.11 mi0.68 mi4582-344274-274274-275304(Top 20%)4887(Top 32%)4887(Top 238%)
25K15.53 mi2.42 mi4452+1304165+1094165+1094063(Top 15%)3809(Top 25%)3809(Top 186%)
30K18.64 mi3.11 mi4303+1494032+1334032+1333753(Top 14%)3519(Top 23%)3519(Top 171%)
20M20.00 mi1.36 mi4219+843958+743958+743529(Top 13%)3294(Top 22%)3294(Top 161%)
21M21.00 mi1.00 mi4078+1413825+1333825+1332854(Top 11%)2679(Top 18%)2679(Top 131%)
35K21.75 mi0.75 mi4053+253803+223803+223856(Top 14%)3550(Top 23%)3550(Top 173%)
23M23.00 mi1.25 mi3970+833724+793724+793124(Top 12%)2910(Top 19%)2910(Top 142%)
24M24.00 mi1.00 mi3942+283694+303694+303643(Top 14%)3342(Top 22%)3342(Top 163%)
40K24.85 mi0.85 mi3846+963612+823612+822572(Top 10%)2386(Top 16%)2386(Top 116%)
25.2M25.20 mi0.35 mi3814+323583+293583+292954(Top 11%)2709(Top 18%)2709(Top 132%)
Finish26.22 mi1.02 mi3697+1173472+1113472+1112229(Top 8%)2069(Top 14%)2069(Top 101%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21stories
+97ft-345ft

Overall

4574

Males

4270

M50-54

4270

5K→10K

3.1 - 6.2 mi

Top 16%
×5stories
+79ft-138ft

Overall

4229

Males

3962

M50-54

3962

10K→15K

6.2 - 9.3 mi

Top 17%
×3stories
+67ft-78ft

Overall

4574

Males

4270

M50-54

4270

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4207

Males

3938

M50-54

3938

20K→Half

12.4 - 13.1 mi

Top 20%
×2stories
+19ft-37ft

Overall

5304

Males

4887

M50-54

4887

Half→25K

13.1 - 15.5 mi

Top 15%
×4stories
+66ft-88ft

Overall

4063

Males

3809

M50-54

3809

25K→30K

15.5 - 18.6 mi

Top 14%
×9stories
+181ft-148ft

Overall

3753

Males

3519

M50-54

3519

30K→20M

18.6 - 20.0 mi

Top 13%
×5stories
+64ft-50ft

Overall

3529

Males

3294

M50-54

3294

20M→21M

20.0 - 21.0 mi

Top 11%
×8stories
+106ft-24ft

Overall

2854

Males

2679

M50-54

2679

21M→35K

21.0 - 21.8 mi

Top 14%
×7stories
+17ft-86ft

Overall

3856

Males

3550

M50-54

3550

35K→23M

21.8 - 23.0 mi

Top 12%
×5stories
+23ft-63ft

Overall

3124

Males

2910

M50-54

2910

23M→24M

23.0 - 24.0 mi

Top 14%
×6stories
+12ft-82ft

Overall

3643

Males

3342

M50-54

3342

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2572

Males

2386

M50-54

2386

40K→25.2M

24.9 - 25.2 mi

Top 11%
×1story
+13ft-16ft

Overall

2954

Males

2709

M50-54

2709

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2229

Males

2069

M50-54

2069

Passing Analysis

Category:
Athletes Passed
1969
Passed By
407
Net Change
+1562
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5259
5K → 10K52537+488#5259#4771
10K → 15K16169+92#4771#4679
15K → 20K17645+131#4679#4548
20K → Half1044-34#4548#4582
Half → 25K15626+130#4582#4452
25K → 30K19849+149#4452#4303
30K → 20M10420+84#4303#4219
20M → 21M15817+141#4219#4078
21M → 35K3813+25#4078#4053
35K → 23M10320+83#4053#3970
23M → 24M6739+28#3970#3942
24M → 40K1059+96#3942#3846
40K → 25.2M397+32#3846#3814
25.2M → Finish12912+117#3814#3697
TOTALS1969407+1562
📊

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