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BOSTON MARATHON 2023

Marc Dunshee

Bib: P130•M

NC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M45-49)
#0 / 2252
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:46/mi
30:22
↑ 97↓ 3451.5%
10K· 6.21 mi
8:47/mi
57:40
↑ 79↓ 1380.4%
15K· 9.32 mi
9:39/mi
1:27:39
↑ 67↓ 78
20K· 12.43 mi
9:31/mi
1:57:12
↑ 106↓ 860.1%
Half· 13.11 mi
9:05/mi
2:03:24
↑ 19↓ 370.5%
25K· 15.53 mi
9:43/mi
2:26:58
↑ 66↓ 880.2%
30K· 18.64 mi
9:26/mi
2:56:18
↑ 181↓ 1480.2%
20M
9:21/mi
3:09:01
↑ 64↓ 500.2%
21M
10:02/mi
3:19:03
↑ 106↓ 241.6%
35K· 21.75 mi
8:21/mi
3:25:18
↑ 17↓ 861.7%
23M
9:04/mi
3:36:39
↑ 23↓ 630.6%
24M
9:32/mi
3:46:11
↓ 821.3%
40K· 24.85 mi
10:06/mi
3:54:49
↓ 200.3%
25.2M
10:12/mi
3:58:20
↑ 13↓ 160.2%
Finish· 26.22 mi
9:22/mi
4:07:53
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time2:03:24
Pace9:25 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time2:04:29
Pace9:30 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:2330:229:4630:22
9:46
-
10K
6.21 mi10:47:4157:409:1727:18
8:47
-0:59
15K
9.32 mi11:17:401:27:399:2429:59
9:39
+0:52
20K
12.43 mi11:47:131:57:129:2629:33
9:31
-0:08
Half
13.11 mi11:53:252:03:249:256:12
9:05
-0:26
25K
15.53 mi12:16:592:26:589:2823:34
9:43
+0:38
30K
18.64 mi12:46:192:56:189:2729:20
9:26
-0:17
20M
20.00 mi12:59:023:09:019:2712:43
9:21
-0:05
21M
21.00 mi13:09:043:19:039:2910:02
10:02
+0:41
35K
21.75 mi13:15:193:25:189:266:15
8:21
-1:41
23M
23.00 mi13:26:403:36:399:2511:21
9:04
+0:43
24M
24.00 mi13:36:123:46:119:259:32
9:32
+0:28
40K
24.85 mi13:44:503:54:499:278:38
10:06
+0:34
25.2M
25.20 mi13:48:213:58:209:273:31
10:12
+0:06
Finish
26.22 mi13:57:544:07:539:289:33
9:22
-0:50

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

8:21 /mi

Average Pace

9:28 /mi

Slowest Pace

10:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

51:06

21% of race

Time at Steady Pace

2:24:14

58% of race

Time at Slower Pace

52:33

21% of race

Average Pace: 9:27 /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 mi10:20:2330:229:4630:22
9:46
#22832
10K
6.21 mi10:47:4157:409:1727:18
8:47
#21665
15K
9.32 mi11:17:401:27:399:2429:59
9:39
#21996
20K
12.43 mi11:47:131:57:129:2629:33
9:31
#21897
Half
13.11 mi11:53:252:03:249:256:12
9:05
#21836
25K
15.53 mi12:16:592:26:589:2823:34
9:43
#21766
30K
18.64 mi12:46:192:56:189:2729:20
9:26
#21345
20M
20.00 mi12:59:023:09:019:2712:43
9:21
#21121
21M
21.00 mi13:09:043:19:039:2910:02
10:02
#20943
35K
21.75 mi13:15:193:25:189:266:15
8:21
#20764
23M
23.00 mi13:26:403:36:399:2511:21
9:04
#20529
24M
24.00 mi13:36:123:46:119:259:32
9:32
#20471
40K
24.85 mi13:44:503:54:499:278:38
10:06
#20444
25.2M
25.20 mi13:48:213:58:209:273:31
10:12
#20408
Finish
26.22 mi13:57:544:07:539:289:33
9:22
#20375
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi22832135161351622666(Top 85%)13476(Top 89%)13476(Top 598%)
10K6.21 mi3.10 mi21665+116712973+54312973+54319858(Top 75%)12225(Top 81%)12225(Top 543%)
15K9.32 mi3.11 mi21996-33113137-16413137-16422666(Top 85%)13476(Top 89%)13476(Top 598%)
20K12.43 mi3.11 mi21897+9913100+3713100+3721586(Top 81%)12995(Top 86%)12995(Top 577%)
Half13.11 mi0.68 mi21836+6113081+1913081+1920762(Top 78%)12629(Top 83%)12629(Top 561%)
25K15.53 mi2.42 mi21766+7013053+2813053+2821517(Top 81%)12929(Top 85%)12929(Top 574%)
30K18.64 mi3.11 mi21345+42112848+20512848+20519220(Top 72%)11886(Top 78%)11886(Top 528%)
20M20.00 mi1.36 mi21121+22412730+11812730+11818265(Top 69%)11361(Top 75%)11361(Top 504%)
21M21.00 mi1.00 mi20943+17812648+8212648+8218145(Top 68%)11285(Top 74%)11285(Top 501%)
35K21.75 mi0.75 mi20764+17912556+9212556+9214433(Top 54%)9628(Top 63%)9628(Top 428%)
23M23.00 mi1.25 mi20529+23512441+11512441+11516376(Top 62%)10404(Top 69%)10404(Top 462%)
24M24.00 mi1.00 mi20471+5812404+3712404+3719327(Top 73%)11682(Top 77%)11682(Top 519%)
40K24.85 mi0.85 mi20444+2712388+1612388+1620225(Top 76%)12025(Top 79%)12025(Top 534%)
25.2M25.20 mi0.35 mi20408+3612364+2412364+2418106(Top 68%)11089(Top 73%)11089(Top 492%)
Finish26.22 mi1.02 mi20375+3312341+2312341+2319644(Top 74%)11820(Top 78%)11820(Top 525%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21story building
+97ft-345ft

Overall

22666

Males

13476

M45-49

13476

5K→10K

3.1 - 6.2 mi

Top 75%
×5story building
+79ft-138ft

Overall

19858

Males

12225

M45-49

12225

10K→15K

6.2 - 9.3 mi

Top 85%
×3story building
+67ft-78ft

Overall

22666

Males

13476

M45-49

13476

15K→20K

9.3 - 12.4 mi

Top 81%
×5story building
+106ft-86ft

Overall

21586

Males

12995

M45-49

12995

20K→Half

12.4 - 13.1 mi

Top 78%
×2story building
+19ft-37ft

Overall

20762

Males

12629

M45-49

12629

Half→25K

13.1 - 15.5 mi

Top 81%
×4story building
+66ft-88ft

Overall

21517

Males

12929

M45-49

12929

25K→30K

15.5 - 18.6 mi

Top 72%
×9story building
+181ft-148ft

Overall

19220

Males

11886

M45-49

11886

30K→20M

18.6 - 20.0 mi

Top 69%
×5story building
+64ft-50ft

Overall

18265

Males

11361

M45-49

11361

20M→21M

20.0 - 21.0 mi

Top 68%
×8story building
+106ft-24ft

Overall

18145

Males

11285

M45-49

11285

21M→35K

21.0 - 21.8 mi

Top 54%
×7story building
+17ft-86ft

Overall

14433

Males

9628

M45-49

9628

35K→23M

21.8 - 23.0 mi

Top 62%
×5story building
+23ft-63ft

Overall

16376

Males

10404

M45-49

10404

23M→24M

23.0 - 24.0 mi

Top 73%
×6story building
+12ft-82ft

Overall

19327

Males

11682

M45-49

11682

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

20225

Males

12025

M45-49

12025

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

18106

Males

11089

M45-49

11089

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2story building
+22ft-21ft

Overall

19644

Males

11820

M45-49

11820

Passing Analysis

Category:
Athletes Passed
3105
Passed By
648
Net Change
+2457
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22832
5K → 10K118013+1167#22832#21665
10K → 15K64395-331#21665#21996
15K → 20K18687+99#21996#21897
20K → Half654+61#21897#21836
Half → 25K13262+70#21836#21766
25K → 30K4232+421#21766#21345
30K → 20M2251+224#21345#21121
20M → 21M1857+178#21121#20943
21M → 35K1790+179#20943#20764
35K → 23M2372+235#20764#20529
23M → 24M7517+58#20529#20471
24M → 40K5831+27#20471#20444
40K → 25.2M415+36#20444#20408
25.2M → Finish5522+33#20408#20375
TOTALS3105648+2457
📊

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