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BOSTON MARATHON 2024

Ken Kieft

Bib: 20436•M

VA

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Division (M60-64)
#0 / 1173
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:18
Rank: #17579
Start → 5K
26:18 | 8:28/mi
10K· 6.21 mi
54:04
Rank: #18591 (-1012)
5K → 10K
27:46 | 8:56/mi
15K· 9.32 mi
1:22:42
Rank: #19008 (-417)
10K → 15K
28:38 | 9:13/mi
20K· 12.43 mi
1:52:35
Rank: #19219 (-211)
15K → 20K
29:53 | 9:37/mi
Half· 13.11 mi
1:58:52
Rank: #19201 (+18)
20K → Half
6:17 | 9:13/mi
25K· 15.53 mi
2:23:09
Rank: #19219 (-18)
Half → 25K
24:17 | 10:01/mi
30K· 18.64 mi
2:55:28
Rank: #19063 (+156)
25K → 30K
32:19 | 10:24/mi
20M
3:09:39
Rank: #18955 (+108)
30K → 20M
14:11 | 10:26/mi
21M
3:20:39
Rank: #18787 (+168)
20M → 21M
11:00 | 11:00/mi
35K· 21.75 mi
3:28:07
Rank: #18700 (+87)
21M → 35K
7:28 | 9:59/mi
23M
3:40:50
Rank: #18477 (+223)
35K → 23M
12:43 | 10:09/mi
24M
3:51:04
Rank: #18419 (+58)
23M → 24M
10:14 | 10:14/mi
40K· 24.85 mi
3:59:39
Rank: #18280 (+139)
24M → 40K
8:35 | 10:02/mi
25.2M
4:04:02
Rank: #18284 (-4)
40K → 25.2M
4:23 | 12:43/mi
Finish· 26.22 mi
4:13:07
Rank: #18114 (+170)
25.2M → Finish
9:05 | 8:55/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:52
Pace9:04 /mi
2nd Half
Distance13.11 mi
Time2:14:15
Pace10:14 /mi
📊Positive Split: 12.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:0826:188:2826:18
8:28
-
10K
6.21 mi11:48:5454:048:4227:46
8:56
+0:28
15K
9.32 mi12:17:321:22:428:5228:38
9:13
+0:17
20K
12.43 mi12:47:251:52:359:0429:53
9:37
+0:24
Half
13.11 mi12:53:421:58:529:046:17
9:13
-0:24
25K
15.53 mi13:17:592:23:099:1324:17
10:01
+0:48
30K
18.64 mi13:50:182:55:289:2532:19
10:24
+0:23
20M
20.00 mi14:04:293:09:399:2914:11
10:26
+0:02
21M
21.00 mi14:15:293:20:399:3311:00
11:00
+0:34
35K
21.75 mi14:22:573:28:079:347:28
9:59
-1:01
23M
23.00 mi14:35:403:40:509:3612:43
10:09
+0:10
24M
24.00 mi14:45:543:51:049:3810:14
10:14
+0:05
40K
24.85 mi14:54:293:59:399:398:35
10:02
-0:12
25.2M
25.20 mi14:58:524:04:029:414:23
12:43
+2:41
Finish
26.22 mi15:07:574:13:079:409:05
8:55
-3:48

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

8:28 /mi

Average Pace

9:40 /mi

Slowest Pace

12:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:38:04

39% of race

Time at Steady Pace

2:19:40

55% of race

Time at Slower Pace

15:23

6% of race

Average Pace: 9:39 /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 mi11:21:0826:188:2826:18
8:28
#17579
10K
6.21 mi11:48:5454:048:4227:46
8:56
#18591
15K
9.32 mi12:17:321:22:428:5228:38
9:13
#19008
20K
12.43 mi12:47:251:52:359:0429:53
9:37
#19219
Half
13.11 mi12:53:421:58:529:046:17
9:13
#19201
25K
15.53 mi13:17:592:23:099:1324:17
10:01
#19219
30K
18.64 mi13:50:182:55:289:2532:19
10:24
#19063
20M
20.00 mi14:04:293:09:399:2914:11
10:26
#18955
21M
21.00 mi14:15:293:20:399:3311:00
11:00
#18787
35K
21.75 mi14:22:573:28:079:347:28
9:59
#18700
23M
23.00 mi14:35:403:40:509:3612:43
10:09
#18477
24M
24.00 mi14:45:543:51:049:3810:14
10:14
#18419
40K
24.85 mi14:54:293:59:399:398:35
10:02
#18280
25.2M
25.20 mi14:58:524:04:029:414:23
12:43
#18284
Finish
26.22 mi15:07:574:13:079:409:05
8:55
#18114
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi17579110261102619774(Top 77%)12066(Top 83%)12066(Top 1029%)
10K6.21 mi3.10 mi18591-101211450-42411450-42419478(Top 76%)11892(Top 82%)11892(Top 1014%)
15K9.32 mi3.11 mi19008-41711664-21411664-21419774(Top 77%)12066(Top 83%)12066(Top 1029%)
20K12.43 mi3.11 mi19219-21111756-9211756-9219551(Top 77%)11944(Top 82%)11944(Top 1018%)
Half13.11 mi0.68 mi19201+1811748+811748+819087(Top 75%)11654(Top 80%)11654(Top 994%)
25K15.53 mi2.42 mi19219-1811759-1111759-1119152(Top 75%)11652(Top 80%)11652(Top 993%)
30K18.64 mi3.11 mi19063+15611621+13811621+13818528(Top 73%)11167(Top 77%)11167(Top 952%)
20M20.00 mi1.36 mi18955+10811536+8511536+8517800(Top 70%)10654(Top 73%)10654(Top 908%)
21M21.00 mi1.00 mi18787+16811432+10411432+10416337(Top 64%)9799(Top 67%)9799(Top 835%)
35K21.75 mi0.75 mi18700+8711376+5611376+5617075(Top 67%)10153(Top 70%)10153(Top 866%)
23M23.00 mi1.25 mi18477+22311255+12111255+12115983(Top 63%)9565(Top 66%)9565(Top 815%)
24M24.00 mi1.00 mi18419+5811206+4911206+4917066(Top 67%)10049(Top 69%)10049(Top 857%)
40K24.85 mi0.85 mi18280+13911118+8811118+8815130(Top 59%)9031(Top 62%)9031(Top 770%)
25.2M25.20 mi0.35 mi18284-411112+611112+619020(Top 74%)10955(Top 75%)10955(Top 934%)
Finish26.22 mi1.02 mi18114+17010997+11510997+11513783(Top 54%)8391(Top 58%)8391(Top 715%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21stories
+97ft-345ft

Overall

19774

Males

12066

M60-64

12066

5K→10K

3.1 - 6.2 mi

Top 76%
×5stories
+79ft-138ft

Overall

19478

Males

11892

M60-64

11892

10K→15K

6.2 - 9.3 mi

Top 77%
×3stories
+67ft-78ft

Overall

19774

Males

12066

M60-64

12066

15K→20K

9.3 - 12.4 mi

Top 77%
×5stories
+106ft-86ft

Overall

19551

Males

11944

M60-64

11944

20K→Half

12.4 - 13.1 mi

Top 75%
×2stories
+19ft-37ft

Overall

19087

Males

11654

M60-64

11654

Half→25K

13.1 - 15.5 mi

Top 75%
×4stories
+66ft-88ft

Overall

19152

Males

11652

M60-64

11652

25K→30K

15.5 - 18.6 mi

Top 73%
×9stories
+181ft-148ft

Overall

18528

Males

11167

M60-64

11167

30K→20M

18.6 - 20.0 mi

Top 70%
×5stories
+64ft-50ft

Overall

17800

Males

10654

M60-64

10654

20M→21M

20.0 - 21.0 mi

Top 64%
×8stories
+106ft-24ft

Overall

16337

Males

9799

M60-64

9799

21M→35K

21.0 - 21.8 mi

Top 67%
×7stories
+17ft-86ft

Overall

17075

Males

10153

M60-64

10153

35K→23M

21.8 - 23.0 mi

Top 63%
×5stories
+23ft-63ft

Overall

15983

Males

9565

M60-64

9565

23M→24M

23.0 - 24.0 mi

Top 67%
×6stories
+12ft-82ft

Overall

17066

Males

10049

M60-64

10049

24M→40K

24.0 - 24.9 mi

Top 59%
×1story
+6ft-20ft

Overall

15130

Males

9031

M60-64

9031

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

19020

Males

10955

M60-64

10955

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2stories
+22ft-21ft

Overall

13783

Males

8391

M60-64

8391

Passing Analysis

Category:
Athletes Passed
2001
Passed By
2536
Net Change
-535
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17579
5K → 10K491061-1012#17579#18591
10K → 15K99516-417#18591#19008
15K → 20K184395-211#19008#19219
20K → Half3921+18#19219#19201
Half → 25K188206-18#19201#19219
25K → 30K306150+156#19219#19063
30K → 20M15143+108#19063#18955
20M → 21M18517+168#18955#18787
21M → 35K10821+87#18787#18700
35K → 23M23815+223#18700#18477
23M → 24M9335+58#18477#18419
24M → 40K1467+139#18419#18280
40K → 25.2M3741-4#18280#18284
25.2M → Finish1788+170#18284#18114
TOTALS20012536-535
📊

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