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BOSTON MARATHON 2023

J Matthew Medeiros

Bib: 576•M

NY

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 18%
Gender (Male)
#0 / 15176
Top 29%
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
20:04
Rank: #2069
Start → 5K
20:04 | 6:28/mi
10K· 6.21 mi
42:43
Rank: #5612 (-3543)
5K → 10K
22:39 | 7:17/mi
15K· 9.32 mi
1:03:14
Rank: #4843 (+769)
10K → 15K
20:31 | 6:36/mi
20K· 12.43 mi
1:23:55
Rank: #4368 (+475)
15K → 20K
20:41 | 6:39/mi
Half· 13.11 mi
1:28:25
Rank: #4312 (+56)
20K → Half
4:30 | 6:36/mi
25K· 15.53 mi
1:44:52
Rank: #4224 (+88)
Half → 25K
16:27 | 6:47/mi
30K· 18.64 mi
2:06:38
Rank: #4255 (-31)
25K → 30K
21:46 | 7:00/mi
20M
2:16:06
Rank: #4206 (+49)
30K → 20M
9:28 | 6:58/mi
21M
2:23:42
Rank: #4246 (-40)
20M → 21M
7:36 | 7:36/mi
35K· 21.75 mi
2:29:28
Rank: #4518 (-272)
21M → 35K
5:46 | 7:42/mi
23M
2:39:15
Rank: #4744 (-226)
35K → 23M
9:47 | 7:49/mi
24M
2:46:06
Rank: #4669 (+75)
23M → 24M
6:51 | 6:51/mi
40K· 24.85 mi
2:52:34
Rank: #4730 (-61)
24M → 40K
6:28 | 7:34/mi
25.2M
2:55:11
Rank: #4701 (+29)
40K → 25.2M
2:37 | 7:35/mi
Finish· 26.22 mi
3:02:16
Rank: #4677 (+24)
25.2M → Finish
7:05 | 6:57/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:25
Pace6:45 /mi
2nd Half
Distance13.11 mi
Time1:33:51
Pace7:10 /mi
📊Positive Split: 6.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:1820:046:2820:04
6:28
-
10K
6.21 mi10:42:5742:436:5222:39
7:17
+0:49
15K
9.32 mi11:03:281:03:146:4720:31
6:36
-0:41
20K
12.43 mi11:24:091:23:556:4520:41
6:39
+0:03
Half
13.11 mi11:28:391:28:256:454:30
6:36
-0:03
25K
15.53 mi11:45:061:44:526:4516:27
6:47
+0:11
30K
18.64 mi12:06:522:06:386:4821:46
7:00
+0:13
20M
20.00 mi12:16:202:16:066:489:28
6:58
-0:02
21M
21.00 mi12:23:562:23:426:517:36
7:36
+0:38
35K
21.75 mi12:29:422:29:286:525:46
7:42
+0:06
23M
23.00 mi12:39:292:39:156:559:47
7:49
+0:07
24M
24.00 mi12:46:202:46:066:556:51
6:51
-0:58
40K
24.85 mi12:52:482:52:346:576:28
7:34
+0:43
25.2M
25.20 mi12:55:252:55:116:572:37
7:35
+0:01
Finish
26.22 mi13:02:303:02:166:577:05
6:57
-0:38

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

6:28 /mi

Average Pace

6:57 /mi

Slowest Pace

7:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:05:46

36% of race

Time at Steady Pace

1:01:37

34% of race

Time at Slower Pace

54:53

30% of race

Average Pace: 6:57 /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 mi10:20:1820:046:2820:04
6:28
#2069
10K
6.21 mi10:42:5742:436:5222:39
7:17
#5612
15K
9.32 mi11:03:281:03:146:4720:31
6:36
#4843
20K
12.43 mi11:24:091:23:556:4520:41
6:39
#4368
Half
13.11 mi11:28:391:28:256:454:30
6:36
#4312
25K
15.53 mi11:45:061:44:526:4516:27
6:47
#4224
30K
18.64 mi12:06:522:06:386:4821:46
7:00
#4255
20M
20.00 mi12:16:202:16:066:489:28
6:58
#4206
21M
21.00 mi12:23:562:23:426:517:36
7:36
#4246
35K
21.75 mi12:29:422:29:286:525:46
7:42
#4518
23M
23.00 mi12:39:292:39:156:559:47
7:49
#4744
24M
24.00 mi12:46:202:46:066:556:51
6:51
#4669
40K
24.85 mi12:52:482:52:346:576:28
7:34
#4730
25.2M
25.20 mi12:55:252:55:116:572:37
7:35
#4701
Finish
26.22 mi13:02:303:02:166:577:05
6:57
#4677
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2069197519753333(Top 13%)3163(Top 21%)3163(Top 60%)
10K6.21 mi3.10 mi5612-35435168-31935168-31938781(Top 33%)7436(Top 49%)7436(Top 141%)
15K9.32 mi3.11 mi4843+7694506+6624506+6623333(Top 13%)3163(Top 21%)3163(Top 60%)
20K12.43 mi3.11 mi4368+4754088+4184088+4183242(Top 12%)3079(Top 20%)3079(Top 58%)
Half13.11 mi0.68 mi4312+564037+514037+513445(Top 13%)3276(Top 22%)3276(Top 62%)
25K15.53 mi2.42 mi4224+883961+763961+764026(Top 15%)3777(Top 25%)3777(Top 71%)
30K18.64 mi3.11 mi4255-313991-303991-304384(Top 16%)4072(Top 27%)4072(Top 77%)
20M20.00 mi1.36 mi4206+493946+453946+453836(Top 14%)3572(Top 24%)3572(Top 68%)
21M21.00 mi1.00 mi4246-403975-293975-295065(Top 19%)4518(Top 30%)4518(Top 85%)
35K21.75 mi0.75 mi4518-2724214-2394214-2399916(Top 37%)7570(Top 50%)7570(Top 143%)
23M23.00 mi1.25 mi4744-2264409-1954409-1958469(Top 32%)6670(Top 44%)6670(Top 126%)
24M24.00 mi1.00 mi4669+754343+664343+663945(Top 15%)3604(Top 24%)3604(Top 68%)
40K24.85 mi0.85 mi4730-614385-424385-427049(Top 26%)5642(Top 37%)5642(Top 107%)
25.2M25.20 mi0.35 mi4701+294359+264359+264307(Top 16%)3777(Top 25%)3777(Top 71%)
Finish26.22 mi1.02 mi4677+244327+324327+324910(Top 18%)4207(Top 28%)4207(Top 80%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21stories
+97ft-345ft

Overall

3333

Males

3163

M18-39

3163

5K→10K

3.1 - 6.2 mi

Top 33%
×5stories
+79ft-138ft

Overall

8781

Males

7436

M18-39

7436

10K→15K

6.2 - 9.3 mi

Top 13%
×3stories
+67ft-78ft

Overall

3333

Males

3163

M18-39

3163

15K→20K

9.3 - 12.4 mi

Top 12%
×5stories
+106ft-86ft

Overall

3242

Males

3079

M18-39

3079

20K→Half

12.4 - 13.1 mi

Top 13%
×2stories
+19ft-37ft

Overall

3445

Males

3276

M18-39

3276

Half→25K

13.1 - 15.5 mi

Top 15%
×4stories
+66ft-88ft

Overall

4026

Males

3777

M18-39

3777

25K→30K

15.5 - 18.6 mi

Top 16%
×9stories
+181ft-148ft

Overall

4384

Males

4072

M18-39

4072

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

3836

Males

3572

M18-39

3572

20M→21M

20.0 - 21.0 mi

Top 19%
×8stories
+106ft-24ft

Overall

5065

Males

4518

M18-39

4518

21M→35K

21.0 - 21.8 mi

Top 37%
×7stories
+17ft-86ft

Overall

9916

Males

7570

M18-39

7570

35K→23M

21.8 - 23.0 mi

Top 32%
×5stories
+23ft-63ft

Overall

8469

Males

6670

M18-39

6670

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

3945

Males

3604

M18-39

3604

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

7049

Males

5642

M18-39

5642

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4307

Males

3777

M18-39

3777

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2stories
+22ft-21ft

Overall

4910

Males

4207

M18-39

4207

Passing Analysis

Category:
Athletes Passed
1936
Passed By
4544
Net Change
-2608
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2069
5K → 10K13544-3543#2069#5612
10K → 15K7690+769#5612#4843
15K → 20K4761+475#4843#4368
20K → Half593+56#4368#4312
Half → 25K13244+88#4312#4224
25K → 30K107138-31#4224#4255
30K → 20M8940+49#4255#4206
20M → 21M5696-40#4206#4246
21M → 35K8280-272#4246#4518
35K → 23M24250-226#4518#4744
23M → 24M9015+75#4744#4669
24M → 40K2586-61#4669#4730
40K → 25.2M356+29#4730#4701
25.2M → Finish6541+24#4701#4677
TOTALS19364544-2608
📊

Passing Visuals

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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing