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BOSTON MARATHON 2023

Robert Dunn

Bib: 17560•M

TX

Masters
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0:00
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Age Group (M55-59)
#0 / 1422
Race Day Weather
49°/39°F
light intensity drizzle

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
28:13
Rank: #20795
Start → 5K
28:13 | 9:05/mi
10K· 6.21 mi
57:55
Rank: #21793 (-998)
5K → 10K
29:42 | 9:34/mi
15K· 9.32 mi
1:26:56
Rank: #21759 (+34)
10K → 15K
29:01 | 9:20/mi
20K· 12.43 mi
1:56:31
Rank: #21731 (+28)
15K → 20K
29:35 | 9:31/mi
Half· 13.11 mi
2:02:46
Rank: #21710 (+21)
20K → Half
6:15 | 9:10/mi
25K· 15.53 mi
2:25:18
Rank: #21463 (+247)
Half → 25K
22:32 | 9:18/mi
30K· 18.64 mi
2:54:27
Rank: #21039 (+424)
25K → 30K
29:09 | 9:23/mi
20M
3:07:02
Rank: #20791 (+248)
30K → 20M
12:35 | 9:16/mi
21M
3:16:46
Rank: #20575 (+216)
20M → 21M
9:44 | 9:44/mi
35K· 21.75 mi
3:23:27
Rank: #20475 (+100)
21M → 35K
6:41 | 8:56/mi
23M
3:34:47
Rank: #20261 (+214)
35K → 23M
11:20 | 9:03/mi
24M
3:43:30
Rank: #20108 (+153)
23M → 24M
8:43 | 8:43/mi
40K· 24.85 mi
3:51:11
Rank: #19988 (+120)
24M → 40K
7:41 | 8:59/mi
25.2M
3:54:32
Rank: #19928 (+60)
40K → 25.2M
3:21 | 9:43/mi
Finish· 26.22 mi
4:03:08
Rank: #19773 (+155)
25.2M → Finish
8:36 | 8:26/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half
via Half
Distance13.11 mi
Time2:02:46
Pace9:22 /mi
2nd Half✓ Faster
Distance13.11 mi
Time2:00:22
Pace9:11 /mi
📊Negative Split: 2.0% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:1128:139:0528:13
9:05
-
10K
6.21 mi11:48:5357:559:1929:42
9:34
+0:29
15K
9.32 mi12:17:541:26:569:2029:01
9:20
-0:14
20K
12.43 mi12:47:291:56:319:2329:35
9:31
+0:11
Half
13.11 mi12:53:442:02:469:226:15
9:10
-0:21
25K
15.53 mi13:16:162:25:189:2122:32
9:18
+0:08
30K
18.64 mi13:45:252:54:279:2229:09
9:23
+0:05
20M
20.00 mi13:58:003:07:029:2112:35
9:16
-0:07
21M
21.00 mi14:07:443:16:469:229:44
9:44
+0:28
35K
21.75 mi14:14:253:23:279:216:41
8:56
-0:48
23M
23.00 mi14:25:453:34:479:2011:20
9:03
+0:07
24M
24.00 mi14:34:283:43:309:198:43
8:43
-0:20
40K
24.85 mi14:42:093:51:119:187:41
8:59
+0:16
25.2M
25.20 mi14:45:303:54:329:183:21
9:43
+0:44
Finish
26.22 mi14:54:064:03:089:178:36
8:26
-1:17

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

8:26 /mi

Average Pace

9:17 /mi

Slowest Pace

9:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

1:30:04

37% of race

Time at Steady Pace

2:33:04

63% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:16 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:19:1128:139:0528:13
9:05
#20795
10K
6.21 mi11:48:5357:559:1929:42
9:34
#21793
15K
9.32 mi12:17:541:26:569:2029:01
9:20
#21759
20K
12.43 mi12:47:291:56:319:2329:35
9:31
#21731
Half
13.11 mi12:53:442:02:469:226:15
9:10
#21710
25K
15.53 mi13:16:162:25:189:2122:32
9:18
#21463
30K
18.64 mi13:45:252:54:279:2229:09
9:23
#21039
20M
20.00 mi13:58:003:07:029:2112:35
9:16
#20791
21M
21.00 mi14:07:443:16:469:229:44
9:44
#20575
35K
21.75 mi14:14:253:23:279:216:41
8:56
#20475
23M
23.00 mi14:25:453:34:479:2011:20
9:03
#20261
24M
24.00 mi14:34:283:43:309:198:43
8:43
#20108
40K
24.85 mi14:42:093:51:119:187:41
8:59
#19988
25.2M
25.20 mi14:45:303:54:329:183:21
9:43
#19928
Finish
26.22 mi14:54:064:03:089:178:36
8:26
#19773
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi20795125071250721766(Top 82%)13086(Top 86%)13086(Top 920%)
10K6.21 mi3.10 mi21793-99813034-52713034-52722668(Top 85%)13466(Top 89%)13466(Top 947%)
15K9.32 mi3.11 mi21759+3413035-113035-121766(Top 82%)13086(Top 86%)13086(Top 920%)
20K12.43 mi3.11 mi21731+2813039-413039-421617(Top 81%)13012(Top 86%)13012(Top 915%)
Half13.11 mi0.68 mi21710+2113024+1513024+1521014(Top 79%)12734(Top 84%)12734(Top 895%)
25K15.53 mi2.42 mi21463+24712916+10812916+10820174(Top 76%)12359(Top 81%)12359(Top 869%)
30K18.64 mi3.11 mi21039+42412714+20212714+20218958(Top 71%)11765(Top 78%)11765(Top 827%)
20M20.00 mi1.36 mi20791+24812600+11412600+11417840(Top 67%)11166(Top 74%)11166(Top 785%)
21M21.00 mi1.00 mi20575+21612483+11712483+11716973(Top 64%)10785(Top 71%)10785(Top 758%)
35K21.75 mi0.75 mi20475+10012427+5612427+5617614(Top 66%)10985(Top 72%)10985(Top 773%)
23M23.00 mi1.25 mi20261+21412326+10112326+10116311(Top 61%)10380(Top 68%)10380(Top 730%)
24M24.00 mi1.00 mi20108+15312250+7612250+7615744(Top 59%)10067(Top 66%)10067(Top 708%)
40K24.85 mi0.85 mi19988+12012188+6212188+6216063(Top 60%)10160(Top 67%)10160(Top 714%)
25.2M25.20 mi0.35 mi19928+6012163+2512163+2516157(Top 61%)10201(Top 67%)10201(Top 717%)
Finish26.22 mi1.02 mi19773+15512098+6512098+6515001(Top 56%)9743(Top 64%)9743(Top 685%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21stories
+97ft-345ft

Overall

21766

Males

13086

M55-59

13086

5K→10K

3.1 - 6.2 mi

Top 85%
×5stories
+79ft-138ft

Overall

22668

Males

13466

M55-59

13466

10K→15K

6.2 - 9.3 mi

Top 82%
×3stories
+67ft-78ft

Overall

21766

Males

13086

M55-59

13086

15K→20K

9.3 - 12.4 mi

Top 81%
×5stories
+106ft-86ft

Overall

21617

Males

13012

M55-59

13012

20K→Half

12.4 - 13.1 mi

Top 79%
×2stories
+19ft-37ft

Overall

21014

Males

12734

M55-59

12734

Half→25K

13.1 - 15.5 mi

Top 76%
×4stories
+66ft-88ft

Overall

20174

Males

12359

M55-59

12359

25K→30K

15.5 - 18.6 mi

Top 71%
×9stories
+181ft-148ft

Overall

18958

Males

11765

M55-59

11765

30K→20M

18.6 - 20.0 mi

Top 67%
×5stories
+64ft-50ft

Overall

17840

Males

11166

M55-59

11166

20M→21M

20.0 - 21.0 mi

Top 64%
×8stories
+106ft-24ft

Overall

16973

Males

10785

M55-59

10785

21M→35K

21.0 - 21.8 mi

Top 66%
×7stories
+17ft-86ft

Overall

17614

Males

10985

M55-59

10985

35K→23M

21.8 - 23.0 mi

Top 61%
×5stories
+23ft-63ft

Overall

16311

Males

10380

M55-59

10380

23M→24M

23.0 - 24.0 mi

Top 59%
×6stories
+12ft-82ft

Overall

15744

Males

10067

M55-59

10067

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

16063

Males

10160

M55-59

10160

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

16157

Males

10201

M55-59

10201

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2stories
+22ft-21ft

Overall

15001

Males

9743

M55-59

9743

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2375
Passed By
1353
Net Change
+1022
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20795
5K → 10K401038-998#20795#21793
10K → 15K181147+34#21793#21759
15K → 20K140112+28#21759#21731
20K → Half3211+21#21731#21710
Half → 25K25811+247#21710#21463
25K → 30K4339+424#21463#21039
30K → 20M2535+248#21039#20791
20M → 21M2171+216#20791#20575
21M → 35K1044+100#20575#20475
35K → 23M2173+214#20475#20261
23M → 24M1541+153#20261#20108
24M → 40K1266+120#20108#19988
40K → 25.2M611+60#19988#19928
25.2M → Finish1594+155#19928#19773
TOTALS23751353+1022
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing