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BOSTON MARATHON 2023

Matt Koehler

Bib: 5851•M

OH

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 15%
Gender (Male)
#0 / 15176
Top 25%
Masters (Masters Men)
#0 / 9891
Top 12%
Division (M40-44)
#0 / 2241
Top 30%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:58
Rank: #4086
Start → 5K
6:45/mi
20:58 split
10K· 6.21 mi
41:55
Rank: #4438 (-352)
5K → 10K
6:45/mi
20:58 split
15K· 9.32 mi
1:02:29
Rank: #4054 (+384)
10K → 15K
6:37/mi
20:34 split
20K· 12.43 mi
1:23:12
Rank: #3822 (+232)
15K → 20K
6:40/mi
20:43 split
Half· 13.11 mi
1:27:40
Rank: #3765 (+57)
20K → Half
6:33/mi
4:28 split
25K· 15.53 mi
1:43:46
Rank: #3598 (+167)
Half → 25K
6:38/mi
16:06 split
30K· 18.64 mi
2:05:21
Rank: #3647 (-49)
25K → 30K
6:57/mi
21:35 split
20M
2:14:45
Rank: #3596 (+51)
30K → 20M
6:55/mi
9:24 split
21M
2:22:14
Rank: #3645 (-49)
20M → 21M
7:29/mi
7:29 split
35K· 21.75 mi
2:27:08
Rank: #3584 (+61)
21M → 35K
6:33/mi
4:54 split
23M
2:35:55
Rank: #3559 (+25)
35K → 23M
7:01/mi
8:47 split
24M
2:42:53
Rank: #3610 (-51)
23M → 24M
6:58/mi
6:58 split
40K· 24.85 mi
2:49:07
Rank: #3692 (-82)
24M → 40K
7:17/mi
6:14 split
25.2M
2:52:00
Rank: #3805 (-113)
40K → 25.2M
8:22/mi
2:53 split
Finish· 26.22 mi
2:59:42
Rank: #4113 (-308)
25.2M → Finish
7:33/mi
7:42 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:40
Pace6:41 /mi
2nd Half
Distance13.11 mi
Time1:32:02
Pace7:01 /mi
📊Positive Split: 5.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:0320:586:4520:58
6:45
-
10K
6.21 mi10:45:0041:556:4520:58
6:45
0:00
15K
9.32 mi11:05:341:02:296:4220:34
6:37
-0:08
20K
12.43 mi11:26:171:23:126:4220:43
6:40
+0:03
Half
13.11 mi11:30:451:27:406:414:28
6:33
-0:07
25K
15.53 mi11:46:511:43:466:4116:06
6:38
+0:05
30K
18.64 mi12:08:262:05:216:4321:35
6:57
+0:19
20M
20.00 mi12:17:502:14:456:449:24
6:55
-0:02
21M
21.00 mi12:25:192:22:146:467:29
7:29
+0:34
35K
21.75 mi12:30:132:27:086:464:54
6:33
-0:56
23M
23.00 mi12:39:002:35:556:478:47
7:01
+0:28
24M
24.00 mi12:45:582:42:536:476:58
6:58
-0:03
40K
24.85 mi12:52:122:49:076:486:14
7:17
+0:19
25.2M
25.20 mi12:55:052:52:006:502:53
8:22
+1:05
Finish
26.22 mi13:02:472:59:426:527:42
7:33
-0:49

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

6:33 /mi

Average Pace

6:52 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:06:45

37% of race

Time at Steady Pace

1:28:39

49% of race

Time at Slower Pace

24:18

14% of race

Average Pace: 6:51 /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 mi10:24:0320:586:4520:58
6:45
#4086
10K
6.21 mi10:45:0041:556:4520:58
6:45
#4438
15K
9.32 mi11:05:341:02:296:4220:34
6:37
#4054
20K
12.43 mi11:26:171:23:126:4220:43
6:40
#3822
Half
13.11 mi11:30:451:27:406:414:28
6:33
#3765
25K
15.53 mi11:46:511:43:466:4116:06
6:38
#3598
30K
18.64 mi12:08:262:05:216:4321:35
6:57
#3647
20M
20.00 mi12:17:502:14:456:449:24
6:55
#3596
21M
21.00 mi12:25:192:22:146:467:29
7:29
#3645
35K
21.75 mi12:30:132:27:086:464:54
6:33
#3584
23M
23.00 mi12:39:002:35:556:478:47
7:01
#3559
24M
24.00 mi12:45:582:42:536:476:58
6:58
#3610
40K
24.85 mi12:52:122:49:076:486:14
7:17
#3692
25.2M
25.20 mi12:55:052:52:006:502:53
8:22
#3805
Finish
26.22 mi13:02:472:59:426:527:42
7:33
#4113
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi4086383138313459(Top 13%)3281(Top 22%)3281(Top 146%)
10K6.21 mi3.10 mi4438-3524152-3214152-3214782(Top 18%)4439(Top 29%)4439(Top 198%)
15K9.32 mi3.11 mi4054+3843812+3403812+3403459(Top 13%)3281(Top 22%)3281(Top 146%)
20K12.43 mi3.11 mi3822+2323609+2033609+2033329(Top 13%)3159(Top 21%)3159(Top 141%)
Half13.11 mi0.68 mi3765+573559+503559+503111(Top 12%)2976(Top 20%)2976(Top 133%)
25K15.53 mi2.42 mi3598+1673405+1543405+1542954(Top 11%)2821(Top 19%)2821(Top 126%)
30K18.64 mi3.11 mi3647-493448-433448-433988(Top 15%)3727(Top 25%)3727(Top 166%)
20M20.00 mi1.36 mi3596+513402+463402+463543(Top 13%)3308(Top 22%)3308(Top 148%)
21M21.00 mi1.00 mi3645-493446-443446-444477(Top 17%)4079(Top 27%)4079(Top 182%)
35K21.75 mi0.75 mi3584+613390+563390+562736(Top 10%)2579(Top 17%)2579(Top 115%)
23M23.00 mi1.25 mi3559+253361+293361+293867(Top 15%)3564(Top 23%)3564(Top 159%)
24M24.00 mi1.00 mi3610-513406-453406-454479(Top 17%)4040(Top 27%)4040(Top 180%)
40K24.85 mi0.85 mi3692-823472-663472-665341(Top 20%)4571(Top 30%)4571(Top 204%)
25.2M25.20 mi0.35 mi3805-1133576-1043576-1048551(Top 32%)6452(Top 43%)6452(Top 288%)
Finish26.22 mi1.02 mi4113-3083848-2723848-2728905(Top 33%)6683(Top 44%)6683(Top 298%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21stories
+97ft-345ft

Overall

3459

Males

3281

M40-44

3281

5K→10K

3.1 - 6.2 mi

Top 18%
×5stories
+79ft-138ft

Overall

4782

Males

4439

M40-44

4439

10K→15K

6.2 - 9.3 mi

Top 13%
×3stories
+67ft-78ft

Overall

3459

Males

3281

M40-44

3281

15K→20K

9.3 - 12.4 mi

Top 13%
×5stories
+106ft-86ft

Overall

3329

Males

3159

M40-44

3159

20K→Half

12.4 - 13.1 mi

Top 12%
×2stories
+19ft-37ft

Overall

3111

Males

2976

M40-44

2976

Half→25K

13.1 - 15.5 mi

Top 11%
×4stories
+66ft-88ft

Overall

2954

Males

2821

M40-44

2821

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

3988

Males

3727

M40-44

3727

30K→20M

18.6 - 20.0 mi

Top 13%
×5stories
+64ft-50ft

Overall

3543

Males

3308

M40-44

3308

20M→21M

20.0 - 21.0 mi

Top 17%
×8stories
+106ft-24ft

Overall

4477

Males

4079

M40-44

4079

21M→35K

21.0 - 21.8 mi

Top 10%
×7stories
+17ft-86ft

Overall

2736

Males

2579

M40-44

2579

35K→23M

21.8 - 23.0 mi

Top 15%
×5stories
+23ft-63ft

Overall

3867

Males

3564

M40-44

3564

23M→24M

23.0 - 24.0 mi

Top 17%
×6stories
+12ft-82ft

Overall

4479

Males

4040

M40-44

4040

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5341

Males

4571

M40-44

4571

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8551

Males

6452

M40-44

6452

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2stories
+22ft-21ft

Overall

8905

Males

6683

M40-44

6683

Passing Analysis

Category:
Athletes Passed
1395
Passed By
1422
Net Change
-27
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4086
5K → 10K104456-352#4086#4438
10K → 15K39612+384#4438#4054
15K → 20K25220+232#4054#3822
20K → Half603+57#3822#3765
Half → 25K17912+167#3765#3598
25K → 30K85134-49#3598#3647
30K → 20M8231+51#3647#3596
20M → 21M3786-49#3596#3645
21M → 35K698+61#3645#3584
35K → 23M7348+25#3584#3559
23M → 24M2475-51#3559#3610
24M → 40K27109-82#3610#3692
40K → 25.2M5118-113#3692#3805
25.2M → Finish2310-308#3805#4113
TOTALS13951422-27
📊

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