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BOSTON MARATHON 2023

Matthew Demers

Bib: 26449•M

MA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:27
Rank: #19648
Start → 5K
27:27 | 8:50/mi
10K· 6.21 mi
54:21
Rank: #19378 (+270)
5K → 10K
26:54 | 8:39/mi
15K· 9.32 mi
1:21:02
Rank: #19011 (+367)
10K → 15K
26:41 | 8:35/mi
20K· 12.43 mi
1:47:49
Rank: #18670 (+341)
15K → 20K
26:47 | 8:37/mi
Half· 13.11 mi
1:53:43
Rank: #18658 (+12)
20K → Half
5:54 | 8:39/mi
25K· 15.53 mi
2:14:55
Rank: #18485 (+173)
Half → 25K
21:12 | 8:45/mi
30K· 18.64 mi
2:42:31
Rank: #18095 (+390)
25K → 30K
27:36 | 8:53/mi
20M
2:54:44
Rank: #17952 (+143)
30K → 20M
12:13 | 8:59/mi
21M
3:04:05
Rank: #17772 (+180)
20M → 21M
9:21 | 9:21/mi
35K· 21.75 mi
3:10:40
Rank: #17731 (+41)
21M → 35K
6:35 | 8:48/mi
23M
3:21:59
Rank: #17651 (+80)
35K → 23M
11:19 | 9:02/mi
24M
3:30:46
Rank: #17593 (+58)
23M → 24M
8:47 | 8:47/mi
40K· 24.85 mi
3:38:16
Rank: #17497 (+96)
24M → 40K
7:30 | 8:46/mi
25.2M
3:41:33
Rank: #17457 (+40)
40K → 25.2M
3:17 | 9:31/mi
Finish· 26.22 mi
3:50:12
Rank: #17382 (+75)
25.2M → Finish
8:39 | 8:29/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:43
Pace8:40 /mi
2nd Half
Distance13.11 mi
Time1:56:29
Pace8:53 /mi
📊Positive Split: 2.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:2127:278:5027:27
8:50
-
10K
6.21 mi12:11:1554:218:4526:54
8:39
-0:11
15K
9.32 mi12:37:561:21:028:4226:41
8:35
-0:04
20K
12.43 mi13:04:431:47:498:4126:47
8:37
+0:02
Half
13.11 mi13:10:371:53:438:405:54
8:39
+0:02
25K
15.53 mi13:31:492:14:558:4121:12
8:45
+0:06
30K
18.64 mi13:59:252:42:318:4327:36
8:53
+0:08
20M
20.00 mi14:11:382:54:448:4412:13
8:59
+0:06
21M
21.00 mi14:20:593:04:058:469:21
9:21
+0:22
35K
21.75 mi14:27:343:10:408:466:35
8:48
-0:33
23M
23.00 mi14:38:533:21:598:4711:19
9:02
+0:14
24M
24.00 mi14:47:403:30:468:478:47
8:47
-0:15
40K
24.85 mi14:55:103:38:168:477:30
8:46
-0:01
25.2M
25.20 mi14:58:273:41:338:483:17
9:31
+0:45
Finish
26.22 mi15:07:063:50:128:478:39
8:29
-1:02

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

8:29 /mi

Average Pace

8:47 /mi

Slowest Pace

9:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:37:34

95% of race

Time at Steady Pace

12:38

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:47 /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 mi11:44:2127:278:5027:27
8:50
#19648
10K
6.21 mi12:11:1554:218:4526:54
8:39
#19378
15K
9.32 mi12:37:561:21:028:4226:41
8:35
#19011
20K
12.43 mi13:04:431:47:498:4126:47
8:37
#18670
Half
13.11 mi13:10:371:53:438:405:54
8:39
#18658
25K
15.53 mi13:31:492:14:558:4121:12
8:45
#18485
30K
18.64 mi13:59:252:42:318:4327:36
8:53
#18095
20M
20.00 mi14:11:382:54:448:4412:13
8:59
#17952
21M
21.00 mi14:20:593:04:058:469:21
9:21
#17772
35K
21.75 mi14:27:343:10:408:466:35
8:48
#17731
23M
23.00 mi14:38:533:21:598:4711:19
9:02
#17651
24M
24.00 mi14:47:403:30:468:478:47
8:47
#17593
40K
24.85 mi14:55:103:38:168:477:30
8:46
#17497
25.2M
25.20 mi14:58:273:41:338:483:17
9:31
#17457
Finish
26.22 mi15:07:063:50:128:478:39
8:29
#17382
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi19648120191201918354(Top 69%)11626(Top 77%)11626(Top 220%)
10K6.21 mi3.10 mi19378+27011969+5011969+5019166(Top 72%)11961(Top 79%)11961(Top 226%)
15K9.32 mi3.11 mi19011+36711851+11811851+11818354(Top 69%)11626(Top 77%)11626(Top 220%)
20K12.43 mi3.11 mi18670+34111735+11611735+11617618(Top 66%)11297(Top 74%)11297(Top 214%)
Half13.11 mi0.68 mi18658+1211729+611729+618553(Top 70%)11714(Top 77%)11714(Top 222%)
25K15.53 mi2.42 mi18485+17311645+8411645+8417610(Top 66%)11242(Top 74%)11242(Top 213%)
30K18.64 mi3.11 mi18095+39011450+19511450+19516563(Top 62%)10721(Top 71%)10721(Top 203%)
20M20.00 mi1.36 mi17952+14311372+7811372+7816470(Top 62%)10604(Top 70%)10604(Top 201%)
21M21.00 mi1.00 mi17772+18011298+7411298+7415246(Top 57%)10039(Top 66%)10039(Top 190%)
35K21.75 mi0.75 mi17731+4111265+3311265+3316918(Top 64%)10667(Top 70%)10667(Top 202%)
23M23.00 mi1.25 mi17651+8011217+4811217+4816230(Top 61%)10347(Top 68%)10347(Top 196%)
24M24.00 mi1.00 mi17593+5811180+3711180+3716095(Top 60%)10223(Top 67%)10223(Top 193%)
40K24.85 mi0.85 mi17497+9611133+4711133+4714925(Top 56%)9659(Top 64%)9659(Top 183%)
25.2M25.20 mi0.35 mi17457+4011109+2411109+2415256(Top 57%)9797(Top 65%)9797(Top 185%)
Finish26.22 mi1.02 mi17382+7511065+4411065+4415340(Top 58%)9881(Top 65%)9881(Top 187%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21stories
+97ft-345ft

Overall

18354

Males

11626

M18-39

11626

5K→10K

3.1 - 6.2 mi

Top 72%
×5stories
+79ft-138ft

Overall

19166

Males

11961

M18-39

11961

10K→15K

6.2 - 9.3 mi

Top 69%
×3stories
+67ft-78ft

Overall

18354

Males

11626

M18-39

11626

15K→20K

9.3 - 12.4 mi

Top 66%
×5stories
+106ft-86ft

Overall

17618

Males

11297

M18-39

11297

20K→Half

12.4 - 13.1 mi

Top 70%
×2stories
+19ft-37ft

Overall

18553

Males

11714

M18-39

11714

Half→25K

13.1 - 15.5 mi

Top 66%
×4stories
+66ft-88ft

Overall

17610

Males

11242

M18-39

11242

25K→30K

15.5 - 18.6 mi

Top 62%
×9stories
+181ft-148ft

Overall

16563

Males

10721

M18-39

10721

30K→20M

18.6 - 20.0 mi

Top 62%
×5stories
+64ft-50ft

Overall

16470

Males

10604

M18-39

10604

20M→21M

20.0 - 21.0 mi

Top 57%
×8stories
+106ft-24ft

Overall

15246

Males

10039

M18-39

10039

21M→35K

21.0 - 21.8 mi

Top 64%
×7stories
+17ft-86ft

Overall

16918

Males

10667

M18-39

10667

35K→23M

21.8 - 23.0 mi

Top 61%
×5stories
+23ft-63ft

Overall

16230

Males

10347

M18-39

10347

23M→24M

23.0 - 24.0 mi

Top 60%
×6stories
+12ft-82ft

Overall

16095

Males

10223

M18-39

10223

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

14925

Males

9659

M18-39

9659

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

15256

Males

9797

M18-39

9797

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2stories
+22ft-21ft

Overall

15340

Males

9881

M18-39

9881

Passing Analysis

Category:
Athletes Passed
2877
Passed By
611
Net Change
+2266
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19648
5K → 10K491221+270#19648#19378
10K → 15K42558+367#19378#19011
15K → 20K37433+341#19011#18670
20K → Half3422+12#18670#18658
Half → 25K22047+173#18658#18485
25K → 30K42838+390#18485#18095
30K → 20M16118+143#18095#17952
20M → 21M19313+180#17952#17772
21M → 35K7029+41#17772#17731
35K → 23M12040+80#17731#17651
23M → 24M8830+58#17651#17593
24M → 40K11923+96#17593#17497
40K → 25.2M5313+40#17497#17457
25.2M → Finish10126+75#17457#17382
TOTALS2877611+2266
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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