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BOSTON MARATHON 2023

Matthew Mcdonald

MA

Bib: 24 M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 0.1%
Gender (Male)
#0 / 15176
Top 0.1%
Division (M18-39)
#0 / 5285
Top 0.2%
Race Day Weather
49°/39°F
light intensity drizzle

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
4:38/mi
14:25
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
4:52/mi
29:32
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
4:58/mi
44:57
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
5:02/mi
1:00:35
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
4:59/mi
1:03:59
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
5:00/mi
1:16:07
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
5:01/mi
1:31:43
↑ 181↓ 1480.2%
138 ft elev
20M
5:02/mi
1:38:33
↑ 64↓ 500.2%
148 ft elev
21M
5:18/mi
1:43:51
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
4:58/mi
1:47:34
↑ 17↓ 861.7%
156 ft elev
23M
5:06/mi
1:53:57
↑ 23↓ 630.6%
116 ft elev
24M
5:01/mi
1:58:58
↓ 821.3%
34 ft elev
40K· 24.85 mi
5:05/mi
2:03:19
↓ 200.3%
20 ft elev
25.2M
5:25/mi
2:05:11
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
5:00/mi
2:10:17
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:03:594:53 /mi⚡ faster
2nd Half
1:06:185:03 /mi+3.6%
Positive split — 3.6% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi09:51:2614:254:3814:25
4:38
-
10K
6.21 mi10:06:3329:324:4515:07
4:52
+0:14
15K
9.32 mi10:21:5844:574:4915:25
4:58
+0:06
20K
12.43 mi10:37:361:00:354:5215:38
5:02
+0:04
Half
13.11 mi10:41:001:03:594:533:24
4:59
-0:03
25K
15.53 mi10:53:081:16:074:5412:08
5:00
+0:01
30K
18.64 mi11:08:441:31:434:5515:36
5:01
+0:01
20M
20.00 mi11:15:341:38:334:566:50
5:02
+0:01
21M
21.00 mi11:20:521:43:514:575:18
5:18
+0:16
35K
21.75 mi11:24:351:47:344:573:43
4:58
-0:20
23M
23.00 mi11:30:581:53:574:576:23
5:06
+0:08
24M
24.00 mi11:35:591:58:584:575:01
5:01
-0:05
40K
24.85 mi11:40:202:03:194:584:21
5:05
+0:04
25.2M
25.20 mi11:42:122:05:114:581:52
5:25
+0:20
Finish
26.22 mi11:47:182:10:174:585:06
5:00
-0:25

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

4:38 /mi

Average Pace

4:58 /mi

Slowest Pace

5:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Segment Time Comparison

Time at Faster Pace

1:56:44

90% of race

Time at Steady Pace

13:33

10% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 4:58 /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 mi09:51:2614:254:3814:25
4:38
#13
10K
6.21 mi10:06:3329:324:4515:07
4:52
#17
15K
9.32 mi10:21:5844:574:4915:25
4:58
#17
20K
12.43 mi10:37:361:00:354:5215:38
5:02
#13
Half
13.11 mi10:41:001:03:594:533:24
4:59
#14
25K
15.53 mi10:53:081:16:074:5412:08
5:00
#13
30K
18.64 mi11:08:441:31:434:5515:36
5:01
#13
20M
20.00 mi11:15:341:38:334:566:50
5:02
#13
21M
21.00 mi11:20:521:43:514:575:18
5:18
#13
35K
21.75 mi11:24:351:47:344:573:43
4:58
#13
23M
23.00 mi11:30:581:53:574:576:23
5:06
#12
24M
24.00 mi11:35:591:58:584:575:01
5:01
#12
40K
24.85 mi11:40:202:03:194:584:21
5:05
#12
25.2M
25.20 mi11:42:122:05:114:581:52
5:25
#12
Finish
26.22 mi11:47:182:10:174:585:06
5:00
#10
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi131313151515
10K6.21 mi3.10 mi17-417-417-4191919
15K9.32 mi3.11 mi171717151515
20K12.43 mi3.11 mi13+413+413+4121212
Half13.11 mi0.68 mi14-114-114-1171717
25K15.53 mi2.42 mi13+113+113+1131313
30K18.64 mi3.11 mi131313111111
20M20.00 mi1.36 mi131313111111
21M21.00 mi1.00 mi131313888
35K21.75 mi0.75 mi131313111111
23M23.00 mi1.25 mi12+112+112+1777
24M24.00 mi1.00 mi121212999
40K24.85 mi0.85 mi121212777
25.2M25.20 mi0.35 mi121212666
Finish26.22 mi1.02 mi10+210+210+21099

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 0.06%
×21story building
+97ft-345ft

Overall

15

Males

15

M18-39

15

5K→10K

3.1 - 6.2 mi

Top 0.07%
×5story building
+79ft-138ft

Overall

19

Males

19

M18-39

19

10K→15K

6.2 - 9.3 mi

Top 0.06%
×3story building
+67ft-78ft

Overall

15

Males

15

M18-39

15

15K→20K

9.3 - 12.4 mi

Top 0.05%
×5story building
+106ft-86ft

Overall

12

Males

12

M18-39

12

20K→Half

12.4 - 13.1 mi

Top 0.06%
×2story building
+19ft-37ft

Overall

17

Males

17

M18-39

17

Half→25K

13.1 - 15.5 mi

Top 0.05%
×4story building
+66ft-88ft

Overall

13

Males

13

M18-39

13

25K→30K

15.5 - 18.6 mi

Top 0.04%
×9story building
+181ft-148ft

Overall

11

Males

11

M18-39

11

30K→20M

18.6 - 20.0 mi

Top 0.04%
×5story building
+64ft-50ft

Overall

11

Males

11

M18-39

11

20M→21M

20.0 - 21.0 mi

Top 0.03%
×8story building
+106ft-24ft

Overall

8

Males

8

M18-39

8

21M→35K

21.0 - 21.8 mi

Top 0.04%
×7story building
+17ft-86ft

Overall

11

Males

11

M18-39

11

35K→23M

21.8 - 23.0 mi

Top 0.03%
×5story building
+23ft-63ft

Overall

7

Males

7

M18-39

7

23M→24M

23.0 - 24.0 mi

Top 0.03%
×6story building
+12ft-82ft

Overall

9

Males

9

M18-39

9

24M→40K

24.0 - 24.9 mi

Top 0.03%
×1story
+6ft-20ft

Overall

7

Males

7

M18-39

7

40K→25.2M

24.9 - 25.2 mi

Top 0.02%
×1story
+13ft-16ft

Overall

6

Males

6

M18-39

6

25.2M→Finish

25.2 - 26.2 mi

Top 0.04%
×2story building
+22ft-21ft

Overall

10

Males

9

M18-39

9

Passing Analysis

Category:
Athletes Passed
10
Passed By
7
Net Change
+3
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13
5K → 10K04-4#13#17
10K → 15K110#17#17
15K → 20K40+4#17#13
20K → Half01-1#13#14
Half → 25K10+1#14#13
25K → 30K000#13#13
30K → 20M110#13#13
20M → 21M000#13#13
21M → 35K000#13#13
35K → 23M10+1#13#12
23M → 24M000#12#12
24M → 40K000#12#12
40K → 25.2M000#12#12
25.2M → Finish20+2#12#10
TOTALS107+3

Passing Charts

Category:
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Passing Circle

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Position Flow

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Race Lanes

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