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BOSTON MARATHON 2023

Robert Macdonald

Bib: 17553•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 29%
Gender (Male)
#0 / 15176
Top 43%
Masters (Masters Men)
#0 / 9891
Top 31%
Division (M55-59)
#0 / 1422
Top 12%
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
7:40/mi
23:50
↑ 97↓ 3451.5%
10K· 6.21 mi
7:04/mi
45:47
↑ 79↓ 1380.4%
15K· 9.32 mi
7:09/mi
1:07:59
↑ 67↓ 78
20K· 12.43 mi
7:23/mi
1:30:54
↑ 106↓ 860.1%
Half· 13.11 mi
7:17/mi
1:35:52
↑ 19↓ 370.5%
25K· 15.53 mi
7:25/mi
1:53:51
↑ 66↓ 880.2%
30K· 18.64 mi
7:46/mi
2:17:59
↑ 181↓ 1480.2%
20M
7:33/mi
2:28:15
↑ 64↓ 500.2%
21M
8:04/mi
2:36:19
↑ 106↓ 241.6%
35K· 21.75 mi
7:25/mi
2:41:52
↑ 17↓ 861.7%
23M
7:31/mi
2:51:17
↑ 23↓ 630.6%
24M
7:14/mi
2:58:31
↓ 821.3%
40K· 24.85 mi
7:27/mi
3:04:53
↓ 200.3%
25.2M
8:07/mi
3:07:41
↑ 13↓ 160.2%
Finish· 26.22 mi
7:17/mi
3:15:06
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:52
Pace7:19 /mi
2nd Half
Distance13.11 mi
Time1:39:14
Pace7:34 /mi
📊Positive Split: 3.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:4323:507:4023:50
7:40
-
10K
6.21 mi11:36:4045:477:2221:57
7:04
-0:36
15K
9.32 mi11:58:521:07:597:1822:12
7:09
+0:05
20K
12.43 mi12:21:471:30:547:1922:55
7:23
+0:14
Half
13.11 mi12:26:451:35:527:194:58
7:17
-0:06
25K
15.53 mi12:44:441:53:517:2017:59
7:25
+0:08
30K
18.64 mi13:08:522:17:597:2424:08
7:46
+0:21
20M
20.00 mi13:19:082:28:157:2510:16
7:33
-0:13
21M
21.00 mi13:27:122:36:197:278:04
8:04
+0:31
35K
21.75 mi13:32:452:41:527:275:33
7:25
-0:39
23M
23.00 mi13:42:102:51:177:279:25
7:31
+0:06
24M
24.00 mi13:49:242:58:317:267:14
7:14
-0:17
40K
24.85 mi13:55:463:04:537:266:22
7:27
+0:13
25.2M
25.20 mi13:58:343:07:417:272:48
8:07
+0:40
Finish
26.22 mi14:05:593:15:067:277:25
7:17
-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

7:04 /mi

Average Pace

7:27 /mi

Slowest Pace

8:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:04:14

94% of race

Time at Steady Pace

10:52

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:26 /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 mi11:14:4323:507:4023:50
7:40
#11185
10K
6.21 mi11:36:4045:477:2221:57
7:04
#8942
15K
9.32 mi11:58:521:07:597:1822:12
7:09
#8417
20K
12.43 mi12:21:471:30:547:1922:55
7:23
#8349
Half
13.11 mi12:26:451:35:527:194:58
7:17
#8361
25K
15.53 mi12:44:441:53:517:2017:59
7:25
#8292
30K
18.64 mi13:08:522:17:597:2424:08
7:46
#8369
20M
20.00 mi13:19:082:28:157:2510:16
7:33
#8259
21M
21.00 mi13:27:122:36:197:278:04
8:04
#8225
35K
21.75 mi13:32:452:41:527:275:33
7:25
#8188
23M
23.00 mi13:42:102:51:177:279:25
7:31
#8058
24M
24.00 mi13:49:242:58:317:267:14
7:14
#7935
40K
24.85 mi13:55:463:04:537:266:22
7:27
#7846
25.2M
25.20 mi13:58:343:07:417:272:48
8:07
#7836
Finish
26.22 mi14:05:593:15:067:277:25
7:17
#7757
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi11185874087407437(Top 28%)6554(Top 43%)6554(Top 461%)
10K6.21 mi3.10 mi8942+22437541+11997541+11997203(Top 27%)6381(Top 42%)6381(Top 449%)
15K9.32 mi3.11 mi8417+5257223+3187223+3187437(Top 28%)6554(Top 43%)6554(Top 461%)
20K12.43 mi3.11 mi8349+687164+597164+598328(Top 31%)7087(Top 47%)7087(Top 498%)
Half13.11 mi0.68 mi8361-127167-37167-38388(Top 32%)7127(Top 47%)7127(Top 501%)
25K15.53 mi2.42 mi8292+697096+717096+718148(Top 31%)6899(Top 45%)6899(Top 485%)
30K18.64 mi3.11 mi8369-777106-107106-109095(Top 34%)7341(Top 48%)7341(Top 516%)
20M20.00 mi1.36 mi8259+1107013+937013+937174(Top 27%)6091(Top 40%)6091(Top 428%)
21M21.00 mi1.00 mi8225+346976+376976+377768(Top 29%)6351(Top 42%)6351(Top 447%)
35K21.75 mi0.75 mi8188+376942+346942+347897(Top 30%)6432(Top 42%)6432(Top 452%)
23M23.00 mi1.25 mi8058+1306842+1006842+1006540(Top 25%)5536(Top 36%)5536(Top 389%)
24M24.00 mi1.00 mi7935+1236743+996743+995947(Top 22%)5077(Top 33%)5077(Top 357%)
40K24.85 mi0.85 mi7846+896669+746669+746359(Top 24%)5258(Top 35%)5258(Top 370%)
25.2M25.20 mi0.35 mi7836+106658+116658+117170(Top 27%)5684(Top 37%)5684(Top 400%)
Finish26.22 mi1.02 mi7757+796587+716587+716948(Top 26%)5531(Top 36%)5531(Top 389%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21story building
+97ft-345ft

Overall

7437

Males

6554

M55-59

6554

5K→10K

3.1 - 6.2 mi

Top 27%
×5story building
+79ft-138ft

Overall

7203

Males

6381

M55-59

6381

10K→15K

6.2 - 9.3 mi

Top 28%
×3story building
+67ft-78ft

Overall

7437

Males

6554

M55-59

6554

15K→20K

9.3 - 12.4 mi

Top 31%
×5story building
+106ft-86ft

Overall

8328

Males

7087

M55-59

7087

20K→Half

12.4 - 13.1 mi

Top 32%
×2story building
+19ft-37ft

Overall

8388

Males

7127

M55-59

7127

Half→25K

13.1 - 15.5 mi

Top 31%
×4story building
+66ft-88ft

Overall

8148

Males

6899

M55-59

6899

25K→30K

15.5 - 18.6 mi

Top 34%
×9story building
+181ft-148ft

Overall

9095

Males

7341

M55-59

7341

30K→20M

18.6 - 20.0 mi

Top 27%
×5story building
+64ft-50ft

Overall

7174

Males

6091

M55-59

6091

20M→21M

20.0 - 21.0 mi

Top 29%
×8story building
+106ft-24ft

Overall

7768

Males

6351

M55-59

6351

21M→35K

21.0 - 21.8 mi

Top 30%
×7story building
+17ft-86ft

Overall

7897

Males

6432

M55-59

6432

35K→23M

21.8 - 23.0 mi

Top 25%
×5story building
+23ft-63ft

Overall

6540

Males

5536

M55-59

5536

23M→24M

23.0 - 24.0 mi

Top 22%
×6story building
+12ft-82ft

Overall

5947

Males

5077

M55-59

5077

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6359

Males

5258

M55-59

5258

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7170

Males

5684

M55-59

5684

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2story building
+22ft-21ft

Overall

6948

Males

5531

M55-59

5531

Passing Analysis

Category:
Athletes Passed
4022*
Passed By
594
Net Change
+3428
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11185
5K → 10K2249*6+2243#11185#8942
10K → 15K53611+525#8942#8417
15K → 20K16294+68#8417#8349
20K → Half1426-12#8349#8361
Half → 25K14576+69#8361#8292
25K → 30K119196-77#8292#8369
30K → 20M12414+110#8369#8259
20M → 21M9157+34#8259#8225
21M → 35K6225+37#8225#8188
35K → 23M15020+130#8188#8058
23M → 24M13512+123#8058#7935
24M → 40K10314+89#7935#7846
40K → 25.2M2717+10#7846#7836
25.2M → Finish10526+79#7836#7757
TOTALS4022*594+3428

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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