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BOSTON MARATHON 2023

Jason Delavan

Bib: 11974•M

CO

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 43%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 47%
Division (M50-54)
#0 / 2052
Top 50%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:30
Rank: #10197
Start → 5K
23:30 | 7:34/mi
10K· 6.21 mi
46:37
Rank: #10044 (+153)
5K → 10K
23:07 | 7:26/mi
15K· 9.32 mi
1:09:35
Rank: #9745 (+299)
10K → 15K
22:58 | 7:24/mi
20K· 12.43 mi
1:33:04
Rank: #9723 (+22)
15K → 20K
23:29 | 7:34/mi
Half· 13.11 mi
1:38:10
Rank: #9747 (-24)
20K → Half
5:06 | 7:29/mi
25K· 15.53 mi
1:56:55
Rank: #9867 (-120)
Half → 25K
18:45 | 7:44/mi
30K· 18.64 mi
2:21:42
Rank: #9979 (-112)
25K → 30K
24:47 | 7:59/mi
20M
2:32:52
Rank: #10102 (-123)
30K → 20M
11:10 | 8:13/mi
21M
2:41:08
Rank: #10000 (+102)
20M → 21M
8:16 | 8:16/mi
35K· 21.75 mi
2:47:13
Rank: #10103 (-103)
21M → 35K
6:05 | 8:08/mi
23M
2:57:38
Rank: #10204 (-101)
35K → 23M
10:25 | 8:19/mi
24M
3:06:00
Rank: #10340 (-136)
23M → 24M
8:22 | 8:22/mi
40K· 24.85 mi
3:13:46
Rank: #10597 (-257)
24M → 40K
7:46 | 9:05/mi
25.2M
3:16:57
Rank: #10653 (-56)
40K → 25.2M
3:11 | 9:14/mi
Finish· 26.22 mi
3:27:14
Rank: #11370 (-717)
25.2M → Finish
10:17 | 10:05/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:10
Pace7:29 /mi
2nd Half
Distance13.11 mi
Time1:49:04
Pace8:19 /mi
📊Positive Split: 11.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:4323:307:3423:30
7:34
-
10K
6.21 mi11:13:5046:377:3023:07
7:26
-0:08
15K
9.32 mi11:36:481:09:357:2822:58
7:24
-0:02
20K
12.43 mi12:00:171:33:047:2923:29
7:34
+0:10
Half
13.11 mi12:05:231:38:107:295:06
7:29
-0:05
25K
15.53 mi12:24:081:56:557:3218:45
7:44
+0:15
30K
18.64 mi12:48:552:21:427:3624:47
7:59
+0:15
20M
20.00 mi13:00:052:32:527:3911:10
8:13
+0:14
21M
21.00 mi13:08:212:41:087:408:16
8:16
+0:03
35K
21.75 mi13:14:262:47:137:416:05
8:08
-0:08
23M
23.00 mi13:24:512:57:387:4310:25
8:19
+0:11
24M
24.00 mi13:33:133:06:007:458:22
8:22
+0:03
40K
24.85 mi13:40:593:13:467:487:46
9:05
+0:43
25.2M
25.20 mi13:44:103:16:577:493:11
9:14
+0:09
Finish
26.22 mi13:54:273:27:147:5510:17
10:05
+0:51

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

7:24 /mi

Average Pace

7:55 /mi

Slowest Pace

10:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:55

56% of race

Time at Steady Pace

1:09:05

33% of race

Time at Slower Pace

21:14

10% of race

Average Pace: 7:54 /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 mi10:50:4323:307:3423:30
7:34
#10197
10K
6.21 mi11:13:5046:377:3023:07
7:26
#10044
15K
9.32 mi11:36:481:09:357:2822:58
7:24
#9745
20K
12.43 mi12:00:171:33:047:2923:29
7:34
#9723
Half
13.11 mi12:05:231:38:107:295:06
7:29
#9747
25K
15.53 mi12:24:081:56:557:3218:45
7:44
#9867
30K
18.64 mi12:48:552:21:427:3624:47
7:59
#9979
20M
20.00 mi13:00:052:32:527:3911:10
8:13
#10102
21M
21.00 mi13:08:212:41:087:408:16
8:16
#10000
35K
21.75 mi13:14:262:47:137:416:05
8:08
#10103
23M
23.00 mi13:24:512:57:387:4310:25
8:19
#10204
24M
24.00 mi13:33:133:06:007:458:22
8:22
#10340
40K
24.85 mi13:40:593:13:467:487:46
9:05
#10597
25.2M
25.20 mi13:44:103:16:577:493:11
9:14
#10653
Finish
26.22 mi13:54:273:27:147:5510:17
10:05
#11370
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi10197823782379270(Top 35%)7718(Top 51%)7718(Top 376%)
10K6.21 mi3.10 mi10044+1538174+638174+639978(Top 37%)8162(Top 54%)8162(Top 398%)
15K9.32 mi3.11 mi9745+2998006+1688006+1689270(Top 35%)7718(Top 51%)7718(Top 376%)
20K12.43 mi3.11 mi9723+227996+107996+109767(Top 37%)7942(Top 52%)7942(Top 387%)
Half13.11 mi0.68 mi9747-248008-128008-1210019(Top 38%)8129(Top 54%)8129(Top 396%)
25K15.53 mi2.42 mi9867-1208062-548062-5410555(Top 40%)8283(Top 55%)8283(Top 404%)
30K18.64 mi3.11 mi9979-1128083-218083-2110696(Top 40%)8194(Top 54%)8194(Top 399%)
20M20.00 mi1.36 mi10102-1238114-318114-3111794(Top 44%)8621(Top 57%)8621(Top 420%)
21M21.00 mi1.00 mi10000+1028035+798035+799023(Top 34%)7092(Top 47%)7092(Top 346%)
35K21.75 mi0.75 mi10103-1038074-398074-3912952(Top 49%)8950(Top 59%)8950(Top 436%)
23M23.00 mi1.25 mi10204-1018094-208094-2012013(Top 45%)8473(Top 56%)8473(Top 413%)
24M24.00 mi1.00 mi10340-1368132-388132-3813603(Top 51%)9127(Top 60%)9127(Top 445%)
40K24.85 mi0.85 mi10597-2578216-848216-8416535(Top 62%)10360(Top 68%)10360(Top 505%)
25.2M25.20 mi0.35 mi10653-568245-298245-2913718(Top 52%)9086(Top 60%)9086(Top 443%)
Finish26.22 mi1.02 mi11370-7178577-3328577-33221989(Top 83%)12851(Top 85%)12851(Top 626%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21stories
+97ft-345ft

Overall

9270

Males

7718

M50-54

7718

5K→10K

3.1 - 6.2 mi

Top 37%
×5stories
+79ft-138ft

Overall

9978

Males

8162

M50-54

8162

10K→15K

6.2 - 9.3 mi

Top 35%
×3stories
+67ft-78ft

Overall

9270

Males

7718

M50-54

7718

15K→20K

9.3 - 12.4 mi

Top 37%
×5stories
+106ft-86ft

Overall

9767

Males

7942

M50-54

7942

20K→Half

12.4 - 13.1 mi

Top 38%
×2stories
+19ft-37ft

Overall

10019

Males

8129

M50-54

8129

Half→25K

13.1 - 15.5 mi

Top 40%
×4stories
+66ft-88ft

Overall

10555

Males

8283

M50-54

8283

25K→30K

15.5 - 18.6 mi

Top 40%
×9stories
+181ft-148ft

Overall

10696

Males

8194

M50-54

8194

30K→20M

18.6 - 20.0 mi

Top 44%
×5stories
+64ft-50ft

Overall

11794

Males

8621

M50-54

8621

20M→21M

20.0 - 21.0 mi

Top 34%
×8stories
+106ft-24ft

Overall

9023

Males

7092

M50-54

7092

21M→35K

21.0 - 21.8 mi

Top 49%
×7stories
+17ft-86ft

Overall

12952

Males

8950

M50-54

8950

35K→23M

21.8 - 23.0 mi

Top 45%
×5stories
+23ft-63ft

Overall

12013

Males

8473

M50-54

8473

23M→24M

23.0 - 24.0 mi

Top 51%
×6stories
+12ft-82ft

Overall

13603

Males

9127

M50-54

9127

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

16535

Males

10360

M50-54

10360

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1story
+13ft-16ft

Overall

13718

Males

9086

M50-54

9086

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2stories
+22ft-21ft

Overall

21989

Males

12851

M50-54

12851

Passing Analysis

Category:
Athletes Passed
1478*
Passed By
2649
Net Change
-1173
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10197
5K → 10K380*227+153#10197#10044
10K → 15K367*68+299#10044#9745
15K → 20K159*137+22#9745#9723
20K → Half2347-24#9723#9747
Half → 25K82201-120#9747#9867
25K → 30K118*230-112#9867#9979
30K → 20M56178-123#9979#10102
20M → 21M14139+102#10102#10000
21M → 35K21124-103#10000#10103
35K → 23M58159-101#10103#10204
23M → 24M27163-136#10204#10340
24M → 40K22279-257#10340#10597
40K → 25.2M1874-56#10597#10653
25.2M → Finish6723-717#10653#11370
TOTALS1478*2649-1173

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

📊

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