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BOSTON MARATHON 2023

Jeffrey Kemp

Bib: 17423•M

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 25%
Gender (Male)
#0 / 15176
Top 39%
Masters (Masters Men)
#0 / 9891
Top 25%
Division (M60-64)
#0 / 1110
Top 3%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:54
Rank: #6552
Start → 5K
21:54 | 7:03/mi
10K· 6.21 mi
43:49
Rank: #6810 (-258)
5K → 10K
21:55 | 7:03/mi
15K· 9.32 mi
1:06:11
Rank: #7102 (-292)
10K → 15K
22:22 | 7:12/mi
20K· 12.43 mi
1:29:11
Rank: #7384 (-282)
15K → 20K
23:00 | 7:24/mi
Half· 13.11 mi
1:34:11
Rank: #7439 (-55)
20K → Half
5:00 | 7:20/mi
25K· 15.53 mi
1:52:04
Rank: #7463 (-24)
Half → 25K
17:53 | 7:23/mi
30K· 18.64 mi
2:15:12
Rank: #7316 (+147)
25K → 30K
23:08 | 7:27/mi
20M
2:25:16
Rank: #7208 (+108)
30K → 20M
10:04 | 7:24/mi
21M
2:33:16
Rank: #7169 (+39)
20M → 21M
8:00 | 8:00/mi
35K· 21.75 mi
2:38:36
Rank: #7121 (+48)
21M → 35K
5:20 | 7:08/mi
23M
2:47:55
Rank: #7004 (+117)
35K → 23M
9:19 | 7:26/mi
24M
2:55:09
Rank: #6921 (+83)
23M → 24M
7:14 | 7:14/mi
40K· 24.85 mi
3:01:28
Rank: #6865 (+56)
24M → 40K
6:19 | 7:23/mi
25.2M
3:04:13
Rank: #6824 (+41)
40K → 25.2M
2:45 | 7:58/mi
Finish· 26.22 mi
3:11:26
Rank: #6749 (+75)
25.2M → Finish
7:13 | 7:05/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:11
Pace7:11 /mi
2nd Half
Distance13.11 mi
Time1:37:15
Pace7:25 /mi
📊Positive Split: 3.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:12:2321:547:0321:54
7:03
-
10K
6.21 mi11:34:1843:497:0321:55
7:03
0:00
15K
9.32 mi11:56:401:06:117:0622:22
7:12
+0:09
20K
12.43 mi12:19:401:29:117:1123:00
7:24
+0:12
Half
13.11 mi12:24:401:34:117:115:00
7:20
-0:04
25K
15.53 mi12:42:331:52:047:1317:53
7:23
+0:03
30K
18.64 mi13:05:412:15:127:1523:08
7:27
+0:04
20M
20.00 mi13:15:452:25:167:1610:04
7:24
-0:03
21M
21.00 mi13:23:452:33:167:188:00
8:00
+0:36
35K
21.75 mi13:29:052:38:367:185:20
7:08
-0:52
23M
23.00 mi13:38:242:47:557:189:19
7:26
+0:18
24M
24.00 mi13:45:382:55:097:187:14
7:14
-0:12
40K
24.85 mi13:51:573:01:287:186:19
7:23
+0:09
25.2M
25.20 mi13:54:423:04:137:192:45
7:58
+0:35
Finish
26.22 mi14:01:553:11:267:187:13
7:05
-0:53

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

7:03 /mi

Average Pace

7:18 /mi

Slowest Pace

8:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:00:41

94% of race

Time at Steady Pace

10:45

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:18 /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 mi11:12:2321:547:0321:54
7:03
#6552
10K
6.21 mi11:34:1843:497:0321:55
7:03
#6810
15K
9.32 mi11:56:401:06:117:0622:22
7:12
#7102
20K
12.43 mi12:19:401:29:117:1123:00
7:24
#7384
Half
13.11 mi12:24:401:34:117:115:00
7:20
#7439
25K
15.53 mi12:42:331:52:047:1317:53
7:23
#7463
30K
18.64 mi13:05:412:15:127:1523:08
7:27
#7316
20M
20.00 mi13:15:452:25:167:1610:04
7:24
#7208
21M
21.00 mi13:23:452:33:167:188:00
8:00
#7169
35K
21.75 mi13:29:052:38:367:185:20
7:08
#7121
23M
23.00 mi13:38:242:47:557:189:19
7:26
#7004
24M
24.00 mi13:45:382:55:097:187:14
7:14
#6921
40K
24.85 mi13:51:573:01:287:186:19
7:23
#6865
25.2M
25.20 mi13:54:423:04:137:192:45
7:58
#6824
Finish
26.22 mi14:01:553:11:267:187:13
7:05
#6749
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi6552592559257779(Top 29%)6772(Top 45%)6772(Top 610%)
10K6.21 mi3.10 mi6810-2586123-1986123-1987145(Top 27%)6344(Top 42%)6344(Top 572%)
15K9.32 mi3.11 mi7102-2926329-2066329-2067779(Top 29%)6772(Top 45%)6772(Top 610%)
20K12.43 mi3.11 mi7384-2826529-2006529-2008517(Top 32%)7201(Top 47%)7201(Top 649%)
Half13.11 mi0.68 mi7439-556564-356564-358742(Top 33%)7333(Top 48%)7333(Top 661%)
25K15.53 mi2.42 mi7463-246570-66570-67787(Top 29%)6657(Top 44%)6657(Top 600%)
30K18.64 mi3.11 mi7316+1476439+1316439+1316857(Top 26%)5967(Top 39%)5967(Top 538%)
20M20.00 mi1.36 mi7208+1086350+896350+896226(Top 23%)5467(Top 36%)5467(Top 493%)
21M21.00 mi1.00 mi7169+396311+396311+397322(Top 28%)6067(Top 40%)6067(Top 547%)
35K21.75 mi0.75 mi7121+486269+426269+426081(Top 23%)5289(Top 35%)5289(Top 476%)
23M23.00 mi1.25 mi7004+1176151+1186151+1186096(Top 23%)5248(Top 35%)5248(Top 473%)
24M24.00 mi1.00 mi6921+836078+736078+735937(Top 22%)5067(Top 33%)5067(Top 456%)
40K24.85 mi0.85 mi6865+566025+536025+535987(Top 22%)5011(Top 33%)5011(Top 451%)
25.2M25.20 mi0.35 mi6824+415988+375988+376312(Top 24%)5148(Top 34%)5148(Top 464%)
Finish26.22 mi1.02 mi6749+755919+695919+695708(Top 21%)4735(Top 31%)4735(Top 427%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21stories
+97ft-345ft

Overall

7779

Males

6772

M60-64

6772

5K→10K

3.1 - 6.2 mi

Top 27%
×5stories
+79ft-138ft

Overall

7145

Males

6344

M60-64

6344

10K→15K

6.2 - 9.3 mi

Top 29%
×3stories
+67ft-78ft

Overall

7779

Males

6772

M60-64

6772

15K→20K

9.3 - 12.4 mi

Top 32%
×5stories
+106ft-86ft

Overall

8517

Males

7201

M60-64

7201

20K→Half

12.4 - 13.1 mi

Top 33%
×2stories
+19ft-37ft

Overall

8742

Males

7333

M60-64

7333

Half→25K

13.1 - 15.5 mi

Top 29%
×4stories
+66ft-88ft

Overall

7787

Males

6657

M60-64

6657

25K→30K

15.5 - 18.6 mi

Top 26%
×9stories
+181ft-148ft

Overall

6857

Males

5967

M60-64

5967

30K→20M

18.6 - 20.0 mi

Top 23%
×5stories
+64ft-50ft

Overall

6226

Males

5467

M60-64

5467

20M→21M

20.0 - 21.0 mi

Top 28%
×8stories
+106ft-24ft

Overall

7322

Males

6067

M60-64

6067

21M→35K

21.0 - 21.8 mi

Top 23%
×7stories
+17ft-86ft

Overall

6081

Males

5289

M60-64

5289

35K→23M

21.8 - 23.0 mi

Top 23%
×5stories
+23ft-63ft

Overall

6096

Males

5248

M60-64

5248

23M→24M

23.0 - 24.0 mi

Top 22%
×6stories
+12ft-82ft

Overall

5937

Males

5067

M60-64

5067

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

5987

Males

5011

M60-64

5011

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6312

Males

5148

M60-64

5148

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2stories
+22ft-21ft

Overall

5708

Males

4735

M60-64

4735

Passing Analysis

Category:
Athletes Passed
1194
Passed By
1391
Net Change
-197
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6552
5K → 10K94352-258#6552#6810
10K → 15K44336-292#6810#7102
15K → 20K43325-282#7102#7384
20K → Half964-55#7384#7439
Half → 25K6993-24#7439#7463
25K → 30K20457+147#7463#7316
30K → 20M11911+108#7316#7208
20M → 21M8041+39#7208#7169
21M → 35K6214+48#7169#7121
35K → 23M14427+117#7121#7004
23M → 24M9613+83#7004#6921
24M → 40K8024+56#6921#6865
40K → 25.2M5211+41#6865#6824
25.2M → Finish9823+75#6824#6749
TOTALS11941391-197
📊

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