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BOSTON MARATHON 2023

Mark Dorrough

Bib: 14509•M

UT

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M50-54)
#0 / 2052
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
8:10/mi
25:21
↑ 97↓ 3451.5%
10K· 6.21 mi
8:18/mi
51:08
↑ 79↓ 1380.4%
15K· 9.32 mi
8:26/mi
1:17:20
↑ 67↓ 78
20K· 12.43 mi
8:48/mi
1:44:40
↑ 106↓ 860.1%
Half· 13.11 mi
8:48/mi
1:50:40
↑ 19↓ 370.5%
25K· 15.53 mi
9:09/mi
2:12:51
↑ 66↓ 880.2%
30K· 18.64 mi
9:28/mi
2:42:16
↑ 181↓ 1480.2%
20M
9:47/mi
2:55:34
↑ 64↓ 500.2%
21M
10:22/mi
3:05:56
↑ 106↓ 241.6%
35K· 21.75 mi
9:24/mi
3:12:58
↑ 17↓ 861.7%
23M
9:45/mi
3:25:11
↑ 23↓ 630.6%
24M
9:37/mi
3:34:48
↓ 821.3%
40K· 24.85 mi
9:53/mi
3:43:15
↓ 200.3%
25.2M
10:32/mi
3:46:53
↑ 13↓ 160.2%
Finish· 26.22 mi
9:09/mi
3:56:12
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:40
Pace8:26 /mi
2nd Half
Distance13.11 mi
Time2:05:32
Pace9:35 /mi
📊Positive Split: 13.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:1825:218:1025:21
8:10
-
10K
6.21 mi11:20:0551:088:1425:47
8:18
+0:08
15K
9.32 mi11:46:171:17:208:1826:12
8:26
+0:08
20K
12.43 mi12:13:371:44:408:2527:20
8:48
+0:22
Half
13.11 mi12:19:371:50:408:266:00
8:48
0:00
25K
15.53 mi12:41:482:12:518:3322:11
9:09
+0:21
30K
18.64 mi13:11:132:42:168:4229:25
9:28
+0:19
20M
20.00 mi13:24:312:55:348:4713:18
9:47
+0:19
21M
21.00 mi13:34:533:05:568:5110:22
10:22
+0:35
35K
21.75 mi13:41:553:12:588:527:02
9:24
-0:58
23M
23.00 mi13:54:083:25:118:5512:13
9:45
+0:21
24M
24.00 mi14:03:453:34:488:579:37
9:37
-0:08
40K
24.85 mi14:12:123:43:158:598:27
9:53
+0:16
25.2M
25.20 mi14:15:503:46:539:003:38
10:32
+0:39
Finish
26.22 mi14:25:093:56:129:019:19
9:09
-1:23

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

8:10 /mi

Average Pace

9:01 /mi

Slowest Pace

10:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:50:40

47% of race

Time at Steady Pace

1:17:34

33% of race

Time at Slower Pace

47:58

20% of race

Average Pace: 9:01 /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 mi10:54:1825:218:1025:21
8:10
#15140
10K
6.21 mi11:20:0551:088:1425:47
8:18
#16022
15K
9.32 mi11:46:171:17:208:1826:12
8:26
#16483
20K
12.43 mi12:13:371:44:408:2527:20
8:48
#17080
Half
13.11 mi12:19:371:50:408:266:00
8:48
#17204
25K
15.53 mi12:41:482:12:518:3322:11
9:09
#17634
30K
18.64 mi13:11:132:42:168:4229:25
9:28
#18005
20M
20.00 mi13:24:312:55:348:4713:18
9:47
#18198
21M
21.00 mi13:34:533:05:568:5110:22
10:22
#18304
35K
21.75 mi13:41:553:12:588:527:02
9:24
#18343
23M
23.00 mi13:54:083:25:118:5512:13
9:45
#18417
24M
24.00 mi14:03:453:34:488:579:37
9:37
#18496
40K
24.85 mi14:12:123:43:158:598:27
9:53
#18559
25.2M
25.20 mi14:15:503:46:539:003:38
10:32
#18586
Finish
26.22 mi14:25:093:56:129:019:19
9:09
#18595
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi15140103891038917353(Top 65%)11202(Top 74%)11202(Top 546%)
10K6.21 mi3.10 mi16022-88210714-32510714-32516917(Top 64%)11079(Top 73%)11079(Top 540%)
15K9.32 mi3.11 mi16483-46110885-17110885-17117353(Top 65%)11202(Top 74%)11202(Top 546%)
20K12.43 mi3.11 mi17080-59711082-19711082-19718654(Top 70%)11748(Top 77%)11748(Top 573%)
Half13.11 mi0.68 mi17204-12411136-5411136-5419417(Top 73%)12058(Top 79%)12058(Top 588%)
25K15.53 mi2.42 mi17634-43011298-16211298-16219596(Top 74%)12102(Top 80%)12102(Top 590%)
30K18.64 mi3.11 mi18005-37111419-12111419-12119302(Top 73%)11922(Top 79%)11922(Top 581%)
20M20.00 mi1.36 mi18198-19311481-6211481-6219802(Top 74%)12028(Top 79%)12028(Top 586%)
21M21.00 mi1.00 mi18304-10611508-2711508-2719177(Top 72%)11705(Top 77%)11705(Top 570%)
35K21.75 mi0.75 mi18343-3911522-1411522-1419517(Top 73%)11823(Top 78%)11823(Top 576%)
23M23.00 mi1.25 mi18417-7411534-1211534-1219272(Top 72%)11682(Top 77%)11682(Top 569%)
24M24.00 mi1.00 mi18496-7911571-3711571-3719613(Top 74%)11822(Top 78%)11822(Top 576%)
40K24.85 mi0.85 mi18559-6311585-1411585-1419628(Top 74%)11755(Top 77%)11755(Top 573%)
25.2M25.20 mi0.35 mi18586-2711590-511590-519183(Top 72%)11555(Top 76%)11555(Top 563%)
Finish26.22 mi1.02 mi18595-911584+611584+618640(Top 70%)11373(Top 75%)11373(Top 554%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21story building
+97ft-345ft

Overall

17353

Males

11202

M50-54

11202

5K→10K

3.1 - 6.2 mi

Top 64%
×5story building
+79ft-138ft

Overall

16917

Males

11079

M50-54

11079

10K→15K

6.2 - 9.3 mi

Top 65%
×3story building
+67ft-78ft

Overall

17353

Males

11202

M50-54

11202

15K→20K

9.3 - 12.4 mi

Top 70%
×5story building
+106ft-86ft

Overall

18654

Males

11748

M50-54

11748

20K→Half

12.4 - 13.1 mi

Top 73%
×2story building
+19ft-37ft

Overall

19417

Males

12058

M50-54

12058

Half→25K

13.1 - 15.5 mi

Top 74%
×4story building
+66ft-88ft

Overall

19596

Males

12102

M50-54

12102

25K→30K

15.5 - 18.6 mi

Top 73%
×9story building
+181ft-148ft

Overall

19302

Males

11922

M50-54

11922

30K→20M

18.6 - 20.0 mi

Top 74%
×5story building
+64ft-50ft

Overall

19802

Males

12028

M50-54

12028

20M→21M

20.0 - 21.0 mi

Top 72%
×8story building
+106ft-24ft

Overall

19177

Males

11705

M50-54

11705

21M→35K

21.0 - 21.8 mi

Top 73%
×7story building
+17ft-86ft

Overall

19517

Males

11823

M50-54

11823

35K→23M

21.8 - 23.0 mi

Top 72%
×5story building
+23ft-63ft

Overall

19272

Males

11682

M50-54

11682

23M→24M

23.0 - 24.0 mi

Top 74%
×6story building
+12ft-82ft

Overall

19613

Males

11822

M50-54

11822

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

19628

Males

11755

M50-54

11755

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

19183

Males

11555

M50-54

11555

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2story building
+22ft-21ft

Overall

18640

Males

11373

M50-54

11373

Passing Analysis

Category:
Athletes Passed
638
Passed By
4093
Net Change
-3455
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15140
5K → 10K58940-882#15140#16022
10K → 15K76537-461#16022#16483
15K → 20K55652-597#16483#17080
20K → Half3127-124#17080#17204
Half → 25K42472-430#17204#17634
25K → 30K92463-371#17634#18005
30K → 20M42235-193#18005#18198
20M → 21M60166-106#18198#18304
21M → 35K2867-39#18304#18343
35K → 23M55129-74#18343#18417
23M → 24M27106-79#18417#18496
24M → 40K37100-63#18496#18559
40K → 25.2M1542-27#18559#18586
25.2M → Finish4857-9#18586#18595
TOTALS6384093-3455
📊

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