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BOSTON MARATHON 2023

Kenny Jacobs

Bib: 17176•M

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0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:57
Rank: #11523
Start → 5K
23:57 | 7:43/mi
10K· 6.21 mi
48:01
Rank: #12076 (-553)
5K → 10K
24:04 | 7:45/mi
15K· 9.32 mi
1:12:18
Rank: #12274 (-198)
10K → 15K
24:17 | 7:49/mi
20K· 12.43 mi
1:36:39
Rank: #12183 (+91)
15K → 20K
24:21 | 7:50/mi
Half· 13.11 mi
1:41:58
Rank: #12216 (-33)
20K → Half
5:19 | 7:48/mi
25K· 15.53 mi
2:02:52
Rank: #13130 (-914)
Half → 25K
20:54 | 8:37/mi
30K· 18.64 mi
2:30:06
Rank: #13695 (-565)
25K → 30K
27:14 | 8:46/mi
20M
2:42:27
Rank: #14026 (-331)
30K → 20M
12:21 | 9:05/mi
21M
2:52:33
Rank: #14333 (-307)
20M → 21M
10:06 | 10:06/mi
35K· 21.75 mi
2:59:38
Rank: #14579 (-246)
21M → 35K
7:05 | 9:28/mi
23M
3:11:51
Rank: #14938 (-359)
35K → 23M
12:13 | 9:45/mi
24M
3:21:24
Rank: #15144 (-206)
23M → 24M
9:33 | 9:33/mi
40K· 24.85 mi
3:29:56
Rank: #15439 (-295)
24M → 40K
8:32 | 9:59/mi
25.2M
3:33:40
Rank: #15556 (-117)
40K → 25.2M
3:44 | 10:50/mi
Finish· 26.22 mi
3:43:43
Rank: #15852 (-296)
25.2M → Finish
10:03 | 9:52/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:58
Pace7:47 /mi
2nd Half
Distance13.11 mi
Time2:01:45
Pace9:17 /mi
📊Positive Split: 19.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:39:2223:577:4323:57
7:43
-
10K
6.21 mi12:03:2648:017:4424:04
7:45
+0:02
15K
9.32 mi12:27:431:12:187:4524:17
7:49
+0:04
20K
12.43 mi12:52:041:36:397:4724:21
7:50
+0:01
Half
13.11 mi12:57:231:41:587:475:19
7:48
-0:02
25K
15.53 mi13:18:172:02:527:5520:54
8:37
+0:49
30K
18.64 mi13:45:312:30:068:0327:14
8:46
+0:09
20M
20.00 mi13:57:522:42:278:0712:21
9:05
+0:19
21M
21.00 mi14:07:582:52:338:1310:06
10:06
+1:01
35K
21.75 mi14:15:032:59:388:167:05
9:28
-0:38
23M
23.00 mi14:27:163:11:518:2012:13
9:45
+0:17
24M
24.00 mi14:36:493:21:248:249:33
9:33
-0:12
40K
24.85 mi14:45:213:29:568:278:32
9:59
+0:26
25.2M
25.20 mi14:49:053:33:408:293:44
10:50
+0:51
Finish
26.22 mi14:59:083:43:438:3210:03
9:52
-0:58

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

7:43 /mi

Average Pace

8:32 /mi

Slowest Pace

10:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:41:58

46% of race

Time at Steady Pace

1:17:07

34% of race

Time at Slower Pace

44:38

20% of race

Average Pace: 8:32 /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 mi11:39:2223:577:4323:57
7:43
#11523
10K
6.21 mi12:03:2648:017:4424:04
7:45
#12076
15K
9.32 mi12:27:431:12:187:4524:17
7:49
#12274
20K
12.43 mi12:52:041:36:397:4724:21
7:50
#12183
Half
13.11 mi12:57:231:41:587:475:19
7:48
#12216
25K
15.53 mi13:18:172:02:527:5520:54
8:37
#13130
30K
18.64 mi13:45:312:30:068:0327:14
8:46
#13695
20M
20.00 mi13:57:522:42:278:0712:21
9:05
#14026
21M
21.00 mi14:07:582:52:338:1310:06
10:06
#14333
35K
21.75 mi14:15:032:59:388:167:05
9:28
#14579
23M
23.00 mi14:27:163:11:518:2012:13
9:45
#14938
24M
24.00 mi14:36:493:21:248:249:33
9:33
#15144
40K
24.85 mi14:45:213:29:568:278:32
9:59
#15439
25.2M
25.20 mi14:49:053:33:408:293:44
10:50
#15556
Finish
26.22 mi14:59:083:43:438:3210:03
9:52
#15852
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi115238908890812865(Top 48%)9462(Top 62%)9462(Top 665%)
10K6.21 mi3.10 mi12076-5539162-2549162-25412642(Top 47%)9402(Top 62%)9402(Top 661%)
15K9.32 mi3.11 mi12274-1989212-509212-5012865(Top 48%)9462(Top 62%)9462(Top 665%)
20K12.43 mi3.11 mi12183+919142+709142+7012046(Top 45%)9038(Top 60%)9038(Top 636%)
Half13.11 mi0.68 mi12216-339153-119153-1112643(Top 47%)9368(Top 62%)9368(Top 659%)
25K15.53 mi2.42 mi13130-9149544-3919544-39116901(Top 63%)10925(Top 72%)10925(Top 768%)
30K18.64 mi3.11 mi13695-5659725-1819725-18115851(Top 60%)10414(Top 69%)10414(Top 732%)
20M20.00 mi1.36 mi14026-3319832-1079832-10716973(Top 64%)10805(Top 71%)10805(Top 760%)
21M21.00 mi1.00 mi14333-3079913-819913-8118372(Top 69%)11370(Top 75%)11370(Top 800%)
35K21.75 mi0.75 mi14579-24610009-9610009-9619724(Top 74%)11930(Top 79%)11930(Top 839%)
23M23.00 mi1.25 mi14938-35910121-11210121-11219267(Top 72%)11677(Top 77%)11677(Top 821%)
24M24.00 mi1.00 mi15144-20610182-6110182-6119369(Top 73%)11694(Top 77%)11694(Top 822%)
40K24.85 mi0.85 mi15439-29510265-8310265-8319893(Top 75%)11865(Top 78%)11865(Top 834%)
25.2M25.20 mi0.35 mi15556-11710312-4710312-4719998(Top 75%)11906(Top 78%)11906(Top 837%)
Finish26.22 mi1.02 mi15852-29610427-11510427-11521337(Top 80%)12573(Top 83%)12573(Top 884%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21stories
+97ft-345ft

Overall

12865

Males

9462

M55-59

9462

5K→10K

3.1 - 6.2 mi

Top 47%
×5stories
+79ft-138ft

Overall

12642

Males

9402

M55-59

9402

10K→15K

6.2 - 9.3 mi

Top 48%
×3stories
+67ft-78ft

Overall

12865

Males

9462

M55-59

9462

15K→20K

9.3 - 12.4 mi

Top 45%
×5stories
+106ft-86ft

Overall

12046

Males

9038

M55-59

9038

20K→Half

12.4 - 13.1 mi

Top 47%
×2stories
+19ft-37ft

Overall

12643

Males

9368

M55-59

9368

Half→25K

13.1 - 15.5 mi

Top 63%
×4stories
+66ft-88ft

Overall

16901

Males

10925

M55-59

10925

25K→30K

15.5 - 18.6 mi

Top 60%
×9stories
+181ft-148ft

Overall

15851

Males

10414

M55-59

10414

30K→20M

18.6 - 20.0 mi

Top 64%
×5stories
+64ft-50ft

Overall

16973

Males

10805

M55-59

10805

20M→21M

20.0 - 21.0 mi

Top 69%
×8stories
+106ft-24ft

Overall

18372

Males

11370

M55-59

11370

21M→35K

21.0 - 21.8 mi

Top 74%
×7stories
+17ft-86ft

Overall

19724

Males

11930

M55-59

11930

35K→23M

21.8 - 23.0 mi

Top 72%
×5stories
+23ft-63ft

Overall

19267

Males

11677

M55-59

11677

23M→24M

23.0 - 24.0 mi

Top 73%
×6stories
+12ft-82ft

Overall

19369

Males

11694

M55-59

11694

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

19893

Males

11865

M55-59

11865

40K→25.2M

24.9 - 25.2 mi

Top 75%
×1story
+13ft-16ft

Overall

19998

Males

11906

M55-59

11906

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2stories
+22ft-21ft

Overall

21337

Males

12573

M55-59

12573

Passing Analysis

Category:
Athletes Passed
705
Passed By
5034
Net Change
-4329
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11523
5K → 10K111664-553#11523#12076
10K → 15K129327-198#12076#12274
15K → 20K219128+91#12274#12183
20K → Half1952-33#12183#12216
Half → 25K17931-914#12216#13130
25K → 30K63628-565#13130#13695
30K → 20M35366-331#13695#14026
20M → 21M20327-307#14026#14333
21M → 35K5251-246#14333#14579
35K → 23M20379-359#14579#14938
23M → 24M26232-206#14938#15144
24M → 40K16311-295#15144#15439
40K → 25.2M11128-117#15439#15556
25.2M → Finish14310-296#15556#15852
TOTALS7055034-4329
📊

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