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BOSTON MARATHON 2023

David Koenig

Bib: 25443•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 (M55-59)
#0 / 1422
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
32:04
Rank: #24267
Start → 5K
10:19/mi
32:04 split
10K· 6.21 mi
1:04:54
Rank: #24597 (-330)
5K → 10K
10:34/mi
32:50 split
15K· 9.32 mi
1:38:46
Rank: #24798 (-201)
10K → 15K
10:54/mi
33:52 split
20K· 12.43 mi
2:14:55
Rank: #25003 (-205)
15K → 20K
11:38/mi
36:09 split
Half· 13.11 mi
2:21:51
Rank: #24929 (+74)
20K → Half
10:10/mi
6:56 split
25K· 15.53 mi
2:50:03
Rank: #24926 (+3)
Half → 25K
11:38/mi
28:12 split
30K· 18.64 mi
3:28:08
Rank: #24936 (-10)
25K → 30K
12:15/mi
38:05 split
20M
3:44:24
Rank: #24860 (+76)
30K → 20M
11:58/mi
16:16 split
21M
3:58:11
Rank: #24877 (-17)
20M → 21M
13:47/mi
13:47 split
35K· 21.75 mi
4:07:19
Rank: #24895 (-18)
21M → 35K
12:12/mi
9:08 split
23M
4:22:48
Rank: #24893 (+2)
35K → 23M
12:22/mi
15:29 split
24M
4:35:23
Rank: #24931 (-38)
23M → 24M
12:35/mi
12:35 split
40K· 24.85 mi
4:45:42
Rank: #24905 (+26)
24M → 40K
12:04/mi
10:19 split
25.2M
4:50:04
Rank: #24891 (+14)
40K → 25.2M
12:40/mi
4:22 split
Finish· 26.22 mi
5:01:55
Rank: #24907 (-16)
25.2M → Finish
11:38/mi
11:51 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:21:51
Pace10:49 /mi
2nd Half
Distance13.11 mi
Time2:40:04
Pace12:13 /mi
📊Positive Split: 12.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:4932:0410:1932:04
10:19
-
10K
6.21 mi12:25:391:04:5410:2732:50
10:34
+0:15
15K
9.32 mi12:59:311:38:4610:3633:52
10:54
+0:20
20K
12.43 mi13:35:402:14:5510:5136:09
11:38
+0:44
Half
13.11 mi13:42:362:21:5110:496:56
10:10
-1:28
25K
15.53 mi14:10:482:50:0310:5728:12
11:38
+1:28
30K
18.64 mi14:48:533:28:0811:1038:05
12:15
+0:37
20M
20.00 mi15:05:093:44:2411:1316:16
11:58
-0:17
21M
21.00 mi15:18:563:58:1111:2113:47
13:47
+1:49
35K
21.75 mi15:28:044:07:1911:229:08
12:12
-1:35
23M
23.00 mi15:43:334:22:4811:2615:29
12:22
+0:10
24M
24.00 mi15:56:084:35:2311:2812:35
12:35
+0:13
40K
24.85 mi16:06:274:45:4211:3010:19
12:04
-0:31
25.2M
25.20 mi16:10:494:50:0411:314:22
12:40
+0:36
Finish
26.22 mi16:22:405:01:5511:3111:51
11:38
-1:02

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

10:10 /mi

Average Pace

11:31 /mi

Slowest Pace

13:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:42

35% of race

Time at Steady Pace

2:45:29

55% of race

Time at Slower Pace

30:44

10% of race

Average Pace: 11:31 /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 mi11:52:4932:0410:1932:04
10:19
#24267
10K
6.21 mi12:25:391:04:5410:2732:50
10:34
#24597
15K
9.32 mi12:59:311:38:4610:3633:52
10:54
#24798
20K
12.43 mi13:35:402:14:5510:5136:09
11:38
#25003
Half
13.11 mi13:42:362:21:5110:496:56
10:10
#24929
25K
15.53 mi14:10:482:50:0310:5728:12
11:38
#24926
30K
18.64 mi14:48:533:28:0811:1038:05
12:15
#24936
20M
20.00 mi15:05:093:44:2411:1316:16
11:58
#24860
21M
21.00 mi15:18:563:58:1111:2113:47
13:47
#24877
35K
21.75 mi15:28:044:07:1911:229:08
12:12
#24895
23M
23.00 mi15:43:334:22:4811:2615:29
12:22
#24893
24M
24.00 mi15:56:084:35:2311:2812:35
12:35
#24931
40K
24.85 mi16:06:274:45:4211:3010:19
12:04
#24905
25.2M
25.20 mi16:10:494:50:0411:314:22
12:40
#24891
Finish
26.22 mi16:22:405:01:5511:3111:51
11:38
#24907
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi24267142251422525064(Top 94%)14548(Top 96%)14548(Top 1023%)
10K6.21 mi3.10 mi24597-33014368-14314368-14324795(Top 93%)14447(Top 95%)14447(Top 1016%)
15K9.32 mi3.11 mi24798-20114439-7114439-7125064(Top 94%)14548(Top 96%)14548(Top 1023%)
20K12.43 mi3.11 mi25003-20514525-8614525-8625397(Top 95%)14659(Top 97%)14659(Top 1031%)
Half13.11 mi0.68 mi24929+7414486+3914486+3923603(Top 89%)13903(Top 92%)13903(Top 978%)
25K15.53 mi2.42 mi24926+314479+714479+724822(Top 93%)14389(Top 95%)14389(Top 1012%)
30K18.64 mi3.11 mi24936-1014461+1814461+1824769(Top 93%)14313(Top 94%)14313(Top 1007%)
20M20.00 mi1.36 mi24860+7614418+4314418+4324169(Top 91%)13982(Top 92%)13982(Top 983%)
21M21.00 mi1.00 mi24877-1714419-114419-124851(Top 93%)14299(Top 94%)14299(Top 1006%)
35K21.75 mi0.75 mi24895-1814421-214421-224890(Top 93%)14267(Top 94%)14267(Top 1003%)
23M23.00 mi1.25 mi24893+214411+1014411+1024451(Top 92%)14066(Top 93%)14066(Top 989%)
24M24.00 mi1.00 mi24931-3814421-1014421-1025140(Top 94%)14366(Top 95%)14366(Top 1010%)
40K24.85 mi0.85 mi24905+2614402+1914402+1923972(Top 90%)13787(Top 91%)13787(Top 970%)
25.2M25.20 mi0.35 mi24891+1414395+714395+723523(Top 88%)13566(Top 89%)13566(Top 954%)
Finish26.22 mi1.02 mi24907-16143951439524847(Top 93%)14244(Top 94%)14244(Top 1002%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 94%
×21story building
+97ft-345ft

Overall

25064

Males

14548

M55-59

14548

5K→10K

3.1 - 6.2 mi

Top 93%
×5story building
+79ft-138ft

Overall

24795

Males

14447

M55-59

14447

10K→15K

6.2 - 9.3 mi

Top 94%
×3story building
+67ft-78ft

Overall

25064

Males

14548

M55-59

14548

15K→20K

9.3 - 12.4 mi

Top 95%
×5story building
+106ft-86ft

Overall

25397

Males

14659

M55-59

14659

20K→Half

12.4 - 13.1 mi

Top 89%
×2story building
+19ft-37ft

Overall

23603

Males

13903

M55-59

13903

Half→25K

13.1 - 15.5 mi

Top 93%
×4story building
+66ft-88ft

Overall

24822

Males

14389

M55-59

14389

25K→30K

15.5 - 18.6 mi

Top 93%
×9story building
+181ft-148ft

Overall

24769

Males

14313

M55-59

14313

30K→20M

18.6 - 20.0 mi

Top 91%
×5story building
+64ft-50ft

Overall

24169

Males

13982

M55-59

13982

20M→21M

20.0 - 21.0 mi

Top 93%
×8story building
+106ft-24ft

Overall

24851

Males

14299

M55-59

14299

21M→35K

21.0 - 21.8 mi

Top 93%
×7story building
+17ft-86ft

Overall

24890

Males

14267

M55-59

14267

35K→23M

21.8 - 23.0 mi

Top 92%
×5story building
+23ft-63ft

Overall

24451

Males

14066

M55-59

14066

23M→24M

23.0 - 24.0 mi

Top 94%
×6story building
+12ft-82ft

Overall

25140

Males

14366

M55-59

14366

24M→40K

24.0 - 24.9 mi

Top 90%
×1story
+6ft-20ft

Overall

23972

Males

13787

M55-59

13787

40K→25.2M

24.9 - 25.2 mi

Top 88%
×1story
+13ft-16ft

Overall

23523

Males

13566

M55-59

13566

25.2M→Finish

25.2 - 26.2 mi

Top 93%
×2story building
+22ft-21ft

Overall

24847

Males

14244

M55-59

14244

Passing Analysis

Category:
Athletes Passed
657
Passed By
1297
Net Change
-640
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24267
5K → 10K72402-330#24267#24597
10K → 15K55256-201#24597#24798
15K → 20K44249-205#24798#25003
20K → Half740+74#25003#24929
Half → 25K7269+3#24929#24926
25K → 30K8999-10#24926#24936
30K → 20M8610+76#24936#24860
20M → 21M2845-17#24860#24877
21M → 35K1735-18#24877#24895
35K → 23M3129+2#24895#24893
23M → 24M1452-38#24893#24931
24M → 40K4418+26#24931#24905
40K → 25.2M206+14#24905#24891
25.2M → Finish1127-16#24891#24907
TOTALS6571297-640
📊

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