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BOSTON MARATHON 2023

Mark Distefano

Bib: 30488•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
34:19
Rank: #25744
Start → 5K
34:19 | 11:03/mi
10K· 6.21 mi
1:07:44
Rank: #25450 (+294)
5K → 10K
33:25 | 10:45/mi
15K· 9.32 mi
1:42:06
Rank: #25388 (+62)
10K → 15K
34:22 | 11:04/mi
20K· 12.43 mi
2:24:28
Rank: #25904 (-516)
15K → 20K
42:22 | 13:38/mi
Half· 13.11 mi
2:32:05
Rank: #25870 (+34)
20K → Half
7:37 | 11:10/mi
25K· 15.53 mi
3:02:29
Rank: #25825 (+45)
Half → 25K
30:24 | 12:32/mi
30K· 18.64 mi
3:47:51
Rank: #25965 (-140)
25K → 30K
45:22 | 14:36/mi
20M
4:06:23
Rank: #25956 (+9)
30K → 20M
18:32 | 13:38/mi
21M
4:21:45
Rank: #25962 (-6)
20M → 21M
15:22 | 15:22/mi
35K· 21.75 mi
4:31:19
Rank: #25943 (+19)
21M → 35K
9:34 | 12:47/mi
23M
4:49:29
Rank: #25961 (-18)
35K → 23M
18:10 | 14:31/mi
24M
5:02:11
Rank: #25945 (+16)
23M → 24M
12:42 | 12:42/mi
40K· 24.85 mi
5:15:24
Rank: #25981 (-36)
24M → 40K
13:13 | 15:27/mi
25.2M
5:20:11
Rank: #25964 (+17)
40K → 25.2M
4:47 | 13:52/mi
Finish· 26.22 mi
5:32:14
Rank: #25957 (+7)
25.2M → Finish
12:03 | 11:49/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:32:05
Pace11:36 /mi
2nd Half
Distance13.11 mi
Time3:00:09
Pace13:45 /mi
📊Positive Split: 18.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:3334:1911:0334:19
11:03
-
10K
6.21 mi12:26:581:07:4410:5433:25
10:45
-0:18
15K
9.32 mi13:01:201:42:0610:5734:22
11:04
+0:19
20K
12.43 mi13:43:422:24:2811:3742:22
13:38
+2:34
Half
13.11 mi13:51:192:32:0511:367:37
11:10
-2:28
25K
15.53 mi14:21:433:02:2911:4530:24
12:32
+1:22
30K
18.64 mi15:07:053:47:5112:1345:22
14:36
+2:04
20M
20.00 mi15:25:374:06:2312:1918:32
13:38
-0:58
21M
21.00 mi15:40:594:21:4512:2815:22
15:22
+1:44
35K
21.75 mi15:50:334:31:1912:299:34
12:47
-2:35
23M
23.00 mi16:08:434:49:2912:3518:10
14:31
+1:44
24M
24.00 mi16:21:255:02:1112:3512:42
12:42
-1:49
40K
24.85 mi16:34:385:15:2412:4113:13
15:27
+2:45
25.2M
25.20 mi16:39:255:20:1112:424:47
13:52
-1:35
Finish
26.22 mi16:51:285:32:1412:4112:03
11:49
-2:03

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

10:45 /mi

Average Pace

12:41 /mi

Slowest Pace

15:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:01:46

37% of race

Time at Steady Pace

52:40

16% of race

Time at Slower Pace

2:37:48

47% of race

Average Pace: 12:40 /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 mi11:53:3334:1911:0334:19
11:03
#25744
10K
6.21 mi12:26:581:07:4410:5433:25
10:45
#25450
15K
9.32 mi13:01:201:42:0610:5734:22
11:04
#25388
20K
12.43 mi13:43:422:24:2811:3742:22
13:38
#25904
Half
13.11 mi13:51:192:32:0511:367:37
11:10
#25870
25K
15.53 mi14:21:433:02:2911:4530:24
12:32
#25825
30K
18.64 mi15:07:053:47:5112:1345:22
14:36
#25965
20M
20.00 mi15:25:374:06:2312:1918:32
13:38
#25956
21M
21.00 mi15:40:594:21:4512:2815:22
15:22
#25962
35K
21.75 mi15:50:334:31:1912:299:34
12:47
#25943
23M
23.00 mi16:08:434:49:2912:3518:10
14:31
#25961
24M
24.00 mi16:21:255:02:1112:3512:42
12:42
#25945
40K
24.85 mi16:34:385:15:2412:4113:13
15:27
#25981
25.2M
25.20 mi16:39:255:20:1112:424:47
13:52
#25964
Finish
26.22 mi16:51:285:32:1412:4112:03
11:49
#25957
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi25744148381483825279(Top 95%)14640(Top 96%)14640(Top 277%)
10K6.21 mi3.10 mi25450+29414729+10914729+10925095(Top 94%)14578(Top 96%)14578(Top 276%)
15K9.32 mi3.11 mi25388+6214698+3114698+3125279(Top 95%)14640(Top 96%)14640(Top 277%)
20K12.43 mi3.11 mi25904-51614907-20914907-20926453(Top 99%)15107(Top 100%)15107(Top 286%)
Half13.11 mi0.68 mi25870+3414887+2014887+2025158(Top 95%)14557(Top 96%)14557(Top 275%)
25K15.53 mi2.42 mi25825+4514860+2714860+2725571(Top 96%)14716(Top 97%)14716(Top 278%)
30K18.64 mi3.11 mi25965-14014911-5114911-5126287(Top 99%)15018(Top 99%)15018(Top 284%)
20M20.00 mi1.36 mi25956+914906+514906+525628(Top 96%)14686(Top 97%)14686(Top 278%)
21M21.00 mi1.00 mi25962-614902+414902+425935(Top 97%)14840(Top 98%)14840(Top 281%)
35K21.75 mi0.75 mi25943+1914891+1114891+1125403(Top 95%)14519(Top 96%)14519(Top 275%)
23M23.00 mi1.25 mi25961-1814898-714898-726124(Top 98%)14902(Top 98%)14902(Top 282%)
24M24.00 mi1.00 mi25945+1614889+914889+925241(Top 95%)14421(Top 95%)14421(Top 273%)
40K24.85 mi0.85 mi25981-3614905-1614905-1626296(Top 99%)14970(Top 99%)14970(Top 283%)
25.2M25.20 mi0.35 mi25964+1714894+1114894+1124899(Top 94%)14238(Top 94%)14238(Top 269%)
Finish26.22 mi1.02 mi25957+714891+314891+325071(Top 94%)14349(Top 95%)14349(Top 272%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 95%
×21stories
+97ft-345ft

Overall

25279

Males

14640

M18-39

14640

5K→10K

3.1 - 6.2 mi

Top 94%
×5stories
+79ft-138ft

Overall

25095

Males

14578

M18-39

14578

10K→15K

6.2 - 9.3 mi

Top 95%
×3stories
+67ft-78ft

Overall

25279

Males

14640

M18-39

14640

15K→20K

9.3 - 12.4 mi

Top 99%
×5stories
+106ft-86ft

Overall

26453

Males

15107

M18-39

15107

20K→Half

12.4 - 13.1 mi

Top 95%
×2stories
+19ft-37ft

Overall

25158

Males

14557

M18-39

14557

Half→25K

13.1 - 15.5 mi

Top 96%
×4stories
+66ft-88ft

Overall

25571

Males

14716

M18-39

14716

25K→30K

15.5 - 18.6 mi

Top 99%
×9stories
+181ft-148ft

Overall

26287

Males

15018

M18-39

15018

30K→20M

18.6 - 20.0 mi

Top 96%
×5stories
+64ft-50ft

Overall

25628

Males

14686

M18-39

14686

20M→21M

20.0 - 21.0 mi

Top 97%
×8stories
+106ft-24ft

Overall

25935

Males

14840

M18-39

14840

21M→35K

21.0 - 21.8 mi

Top 95%
×7stories
+17ft-86ft

Overall

25403

Males

14519

M18-39

14519

35K→23M

21.8 - 23.0 mi

Top 98%
×5stories
+23ft-63ft

Overall

26124

Males

14902

M18-39

14902

23M→24M

23.0 - 24.0 mi

Top 95%
×6stories
+12ft-82ft

Overall

25241

Males

14421

M18-39

14421

24M→40K

24.0 - 24.9 mi

Top 99%
×1story
+6ft-20ft

Overall

26296

Males

14970

M18-39

14970

40K→25.2M

24.9 - 25.2 mi

Top 94%
×1story
+13ft-16ft

Overall

24899

Males

14238

M18-39

14238

25.2M→Finish

25.2 - 26.2 mi

Top 94%
×2stories
+22ft-21ft

Overall

25071

Males

14349

M18-39

14349

Passing Analysis

Category:
Athletes Passed
718
Passed By
931
Net Change
-213
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25744
5K → 10K34046+294#25744#25450
10K → 15K13270+62#25450#25388
15K → 20K3519-516#25388#25904
20K → Half340+34#25904#25870
Half → 25K6520+45#25870#25825
25K → 30K14154-140#25825#25965
30K → 20M2617+9#25965#25956
20M → 21M1622-6#25956#25962
21M → 35K212+19#25962#25943
35K → 23M1331-18#25943#25961
23M → 24M226+16#25961#25945
24M → 40K440-36#25945#25981
40K → 25.2M181+17#25981#25964
25.2M → Finish103+7#25964#25957
TOTALS718931-213
📊

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