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BOSTON MARATHON 2023

Aaron Kessler

Bib: 5588•M

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 42%
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
23:16
Rank: #9533
Start → 5K
23:16 | 7:29/mi
10K· 6.21 mi
46:17
Rank: #9570 (-37)
5K → 10K
23:01 | 7:25/mi
15K· 9.32 mi
1:09:47
Rank: #9919 (-349)
10K → 15K
23:30 | 7:34/mi
20K· 12.43 mi
1:33:36
Rank: #10102 (-183)
15K → 20K
23:49 | 7:40/mi
Half· 13.11 mi
1:38:44
Rank: #10117 (-15)
20K → Half
5:08 | 7:31/mi
25K· 15.53 mi
1:57:43
Rank: #10291 (-174)
Half → 25K
18:59 | 7:50/mi
30K· 18.64 mi
2:22:54
Rank: #10482 (-191)
25K → 30K
25:11 | 8:06/mi
20M
2:34:00
Rank: #10549 (-67)
30K → 20M
11:06 | 8:10/mi
21M
2:42:46
Rank: #10624 (-75)
20M → 21M
8:46 | 8:46/mi
35K· 21.75 mi
2:48:53
Rank: #10700 (-76)
21M → 35K
6:07 | 8:11/mi
23M
2:59:26
Rank: #10808 (-108)
35K → 23M
10:33 | 8:26/mi
24M
3:08:01
Rank: #11014 (-206)
23M → 24M
8:35 | 8:35/mi
40K· 24.85 mi
3:15:27
Rank: #11145 (-131)
24M → 40K
7:26 | 8:42/mi
25.2M
3:18:33
Rank: #11165 (-20)
40K → 25.2M
3:06 | 8:59/mi
Finish· 26.22 mi
3:27:03
Rank: #11306 (-141)
25.2M → Finish
8:30 | 8:20/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:44
Pace7:32 /mi
2nd Half
Distance13.11 mi
Time1:48:19
Pace8:16 /mi
📊Positive Split: 9.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:5023:167:2923:16
7:29
-
10K
6.21 mi10:48:5146:177:2723:01
7:25
-0:04
15K
9.32 mi11:12:211:09:477:2923:30
7:34
+0:09
20K
12.43 mi11:36:101:33:367:3223:49
7:40
+0:06
Half
13.11 mi11:41:181:38:447:325:08
7:31
-0:09
25K
15.53 mi12:00:171:57:437:3518:59
7:50
+0:19
30K
18.64 mi12:25:282:22:547:4025:11
8:06
+0:16
20M
20.00 mi12:36:342:34:007:4211:06
8:10
+0:04
21M
21.00 mi12:45:202:42:467:458:46
8:46
+0:36
35K
21.75 mi12:51:272:48:537:466:07
8:11
-0:35
23M
23.00 mi13:02:002:59:267:4810:33
8:26
+0:15
24M
24.00 mi13:10:353:08:017:508:35
8:35
+0:09
40K
24.85 mi13:18:013:15:277:527:26
8:42
+0:07
25.2M
25.20 mi13:21:073:18:337:533:06
8:59
+0:17
Finish
26.22 mi13:29:373:27:037:548:30
8:20
-0:39

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

7:25 /mi

Average Pace

7:54 /mi

Slowest Pace

8:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:43

57% of race

Time at Steady Pace

50:54

25% of race

Time at Slower Pace

38:26

19% 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 mi10:25:5023:167:2923:16
7:29
#9533
10K
6.21 mi10:48:5146:177:2723:01
7:25
#9570
15K
9.32 mi11:12:211:09:477:2923:30
7:34
#9919
20K
12.43 mi11:36:101:33:367:3223:49
7:40
#10102
Half
13.11 mi11:41:181:38:447:325:08
7:31
#10117
25K
15.53 mi12:00:171:57:437:3518:59
7:50
#10291
30K
18.64 mi12:25:282:22:547:4025:11
8:06
#10482
20M
20.00 mi12:36:342:34:007:4211:06
8:10
#10549
21M
21.00 mi12:45:202:42:467:458:46
8:46
#10624
35K
21.75 mi12:51:272:48:537:466:07
8:11
#10700
23M
23.00 mi13:02:002:59:267:4810:33
8:26
#10808
24M
24.00 mi13:10:353:08:017:508:35
8:35
#11014
40K
24.85 mi13:18:013:15:277:527:26
8:42
#11145
25.2M
25.20 mi13:21:073:18:337:533:06
8:59
#11165
Finish
26.22 mi13:29:373:27:037:548:30
8:20
#11306
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi95337894789410694(Top 40%)8502(Top 56%)8502(Top 161%)
10K6.21 mi3.10 mi9570-377917-237917-239697(Top 36%)7993(Top 53%)7993(Top 151%)
15K9.32 mi3.11 mi9919-3498118-2018118-20110694(Top 40%)8502(Top 56%)8502(Top 161%)
20K12.43 mi3.11 mi10102-1838209-918209-9110630(Top 40%)8398(Top 55%)8398(Top 159%)
Half13.11 mi0.68 mi10117-158211-28211-210399(Top 39%)8308(Top 55%)8308(Top 157%)
25K15.53 mi2.42 mi10291-1748285-748285-7411334(Top 43%)8641(Top 57%)8641(Top 164%)
30K18.64 mi3.11 mi10482-1918325-408325-4011674(Top 44%)8654(Top 57%)8654(Top 164%)
20M20.00 mi1.36 mi10549-678338-138338-1311448(Top 43%)8460(Top 56%)8460(Top 160%)
21M21.00 mi1.00 mi10624-758348-108348-1012042(Top 45%)8600(Top 57%)8600(Top 163%)
35K21.75 mi0.75 mi10700-768359-118359-1113238(Top 50%)9079(Top 60%)9079(Top 172%)
23M23.00 mi1.25 mi10808-1088384-258384-2512727(Top 48%)8785(Top 58%)8785(Top 166%)
24M24.00 mi1.00 mi11014-2068466-828466-8214932(Top 56%)9710(Top 64%)9710(Top 184%)
40K24.85 mi0.85 mi11145-1318507-418507-4114437(Top 54%)9422(Top 62%)9422(Top 178%)
25.2M25.20 mi0.35 mi11165-208502+58502+512384(Top 47%)8447(Top 56%)8447(Top 160%)
Finish26.22 mi1.02 mi11306-1418549-478549-4714310(Top 54%)9382(Top 62%)9382(Top 178%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21stories
+97ft-345ft

Overall

10694

Males

8502

M18-39

8502

5K→10K

3.1 - 6.2 mi

Top 36%
×5stories
+79ft-138ft

Overall

9697

Males

7993

M18-39

7993

10K→15K

6.2 - 9.3 mi

Top 40%
×3stories
+67ft-78ft

Overall

10694

Males

8502

M18-39

8502

15K→20K

9.3 - 12.4 mi

Top 40%
×5stories
+106ft-86ft

Overall

10630

Males

8398

M18-39

8398

20K→Half

12.4 - 13.1 mi

Top 39%
×2stories
+19ft-37ft

Overall

10399

Males

8308

M18-39

8308

Half→25K

13.1 - 15.5 mi

Top 43%
×4stories
+66ft-88ft

Overall

11334

Males

8641

M18-39

8641

25K→30K

15.5 - 18.6 mi

Top 44%
×9stories
+181ft-148ft

Overall

11674

Males

8654

M18-39

8654

30K→20M

18.6 - 20.0 mi

Top 43%
×5stories
+64ft-50ft

Overall

11448

Males

8460

M18-39

8460

20M→21M

20.0 - 21.0 mi

Top 45%
×8stories
+106ft-24ft

Overall

12042

Males

8600

M18-39

8600

21M→35K

21.0 - 21.8 mi

Top 50%
×7stories
+17ft-86ft

Overall

13238

Males

9079

M18-39

9079

35K→23M

21.8 - 23.0 mi

Top 48%
×5stories
+23ft-63ft

Overall

12727

Males

8785

M18-39

8785

23M→24M

23.0 - 24.0 mi

Top 56%
×6stories
+12ft-82ft

Overall

14932

Males

9710

M18-39

9710

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

14437

Males

9422

M18-39

9422

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

12384

Males

8447

M18-39

8447

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2stories
+22ft-21ft

Overall

14310

Males

9382

M18-39

9382

Passing Analysis

Category:
Athletes Passed
984*
Passed By
2756
Net Change
-1773
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9533
5K → 10K274311-37#9533#9570
10K → 15K73421-349#9570#9919
15K → 20K103286-183#9919#10102
20K → Half34*49-15#10102#10117
Half → 25K75249-174#10117#10291
25K → 30K114305-191#10291#10482
30K → 20M55*122-67#10482#10549
20M → 21M51126-75#10549#10624
21M → 35K37113-76#10624#10700
35K → 23M48156-108#10700#10808
23M → 24M26232-206#10808#11014
24M → 40K32163-131#11014#11145
40K → 25.2M3151-20#11145#11165
25.2M → Finish31172-141#11165#11306
TOTALS984*2756-1773

* 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