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BOSTON MARATHON 2023

Kim Lambrechts

Bib: 26762•M

MA

0:00
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
26:01
Rank: #16677
Start → 5K
8:22/mi
26:01 split
10K· 6.21 mi
52:43
Rank: #17808 (-1131)
5K → 10K
8:36/mi
26:42 split
15K· 9.32 mi
1:20:01
Rank: #18395 (-587)
10K → 15K
8:47/mi
27:18 split
20K· 12.43 mi
1:48:41
Rank: #19042 (-647)
15K → 20K
9:14/mi
28:40 split
Half· 13.11 mi
1:55:09
Rank: #19241 (-199)
20K → Half
9:29/mi
6:28 split
25K· 15.53 mi
2:19:31
Rank: #20031 (-790)
Half → 25K
10:03/mi
24:22 split
30K· 18.64 mi
3:00:31
Rank: #22011 (-1980)
25K → 30K
13:12/mi
41:00 split
20M
3:15:52
Rank: #22137 (-126)
30K → 20M
11:18/mi
15:21 split
21M
3:29:11
Rank: #22333 (-196)
20M → 21M
13:19/mi
13:19 split
35K· 21.75 mi
3:38:14
Rank: #22460 (-127)
21M → 35K
12:06/mi
9:03 split
23M
3:52:10
Rank: #22476 (-16)
35K → 23M
11:08/mi
13:56 split
24M
4:03:05
Rank: #22487 (-11)
23M → 24M
10:55/mi
10:55 split
40K· 24.85 mi
4:12:55
Rank: #22515 (-28)
24M → 40K
11:30/mi
9:50 split
25.2M
4:16:48
Rank: #22495 (+20)
40K → 25.2M
11:16/mi
3:53 split
Finish· 26.22 mi
4:26:34
Rank: #22433 (+62)
25.2M → Finish
9:35/mi
9:46 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:09
Pace8:47 /mi
2nd Half
Distance13.11 mi
Time2:31:25
Pace11:33 /mi
📊Positive Split: 31.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:0326:018:2226:01
8:22
-
10K
6.21 mi12:10:4552:438:2926:42
8:36
+0:14
15K
9.32 mi12:38:031:20:018:3527:18
8:47
+0:11
20K
12.43 mi13:06:431:48:418:4528:40
9:14
+0:27
Half
13.11 mi13:13:111:55:098:476:28
9:29
+0:15
25K
15.53 mi13:37:332:19:318:5924:22
10:03
+0:34
30K
18.64 mi14:18:333:00:319:4141:00
13:12
+3:09
20M
20.00 mi14:33:543:15:529:4815:21
11:18
-1:54
21M
21.00 mi14:47:133:29:119:5813:19
13:19
+2:01
35K
21.75 mi14:56:163:38:1410:029:03
12:06
-1:13
23M
23.00 mi15:10:123:52:1010:0613:56
11:08
-0:58
24M
24.00 mi15:21:074:03:0510:0810:55
10:55
-0:13
40K
24.85 mi15:30:574:12:5510:119:50
11:30
+0:35
25.2M
25.20 mi15:34:504:16:4810:113:53
11:16
-0:14
Finish
26.22 mi15:44:364:26:3410:109:46
9:35
-1:41

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

8:22 /mi

Average Pace

10:10 /mi

Slowest Pace

13:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:29:17

56% of race

Time at Steady Pace

53:55

20% of race

Time at Slower Pace

1:03:22

24% of race

Average Pace: 10:10 /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 mi11:44:0326:018:2226:01
8:22
#16677
10K
6.21 mi12:10:4552:438:2926:42
8:36
#17808
15K
9.32 mi12:38:031:20:018:3527:18
8:47
#18395
20K
12.43 mi13:06:431:48:418:4528:40
9:14
#19042
Half
13.11 mi13:13:111:55:098:476:28
9:29
#19241
25K
15.53 mi13:37:332:19:318:5924:22
10:03
#20031
30K
18.64 mi14:18:333:00:319:4141:00
13:12
#22011
20M
20.00 mi14:33:543:15:529:4815:21
11:18
#22137
21M
21.00 mi14:47:133:29:119:5813:19
13:19
#22333
35K
21.75 mi14:56:163:38:1410:029:03
12:06
#22460
23M
23.00 mi15:10:123:52:1010:0613:56
11:08
#22476
24M
24.00 mi15:21:074:03:0510:0810:55
10:55
#22487
40K
24.85 mi15:30:574:12:5510:119:50
11:30
#22515
25.2M
25.20 mi15:34:504:16:4810:113:53
11:16
#22495
Finish
26.22 mi15:44:364:26:3410:109:46
9:35
#22433
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi16677109481094819438(Top 73%)12068(Top 80%)12068(Top 849%)
10K6.21 mi3.10 mi17808-113111381-43311381-43318806(Top 71%)11822(Top 78%)11822(Top 831%)
15K9.32 mi3.11 mi18395-58711631-25011631-25019438(Top 73%)12068(Top 80%)12068(Top 849%)
20K12.43 mi3.11 mi19042-64711877-24611877-24620681(Top 78%)12615(Top 83%)12615(Top 887%)
Half13.11 mi0.68 mi19241-19911959-8211959-8222051(Top 83%)13221(Top 87%)13221(Top 930%)
25K15.53 mi2.42 mi20031-79012287-32812287-32822320(Top 84%)13290(Top 88%)13290(Top 935%)
30K18.64 mi3.11 mi22011-198013149-86213149-86225562(Top 96%)14666(Top 97%)14666(Top 1031%)
20M20.00 mi1.36 mi22137-12613189-4013189-4023166(Top 87%)13537(Top 89%)13537(Top 952%)
21M21.00 mi1.00 mi22333-19613270-8113270-8124405(Top 92%)14086(Top 93%)14086(Top 991%)
35K21.75 mi0.75 mi22460-12713314-4413314-4424763(Top 93%)14201(Top 94%)14201(Top 999%)
23M23.00 mi1.25 mi22476-16133141331422587(Top 85%)13196(Top 87%)13196(Top 928%)
24M24.00 mi1.00 mi22487-1113312+213312+222882(Top 86%)13289(Top 88%)13289(Top 935%)
40K24.85 mi0.85 mi22515-2813316-413316-423198(Top 87%)13410(Top 88%)13410(Top 943%)
25.2M25.20 mi0.35 mi22495+2013302+1413302+1421036(Top 79%)12409(Top 82%)12409(Top 873%)
Finish26.22 mi1.02 mi22433+6213267+3513267+3520412(Top 77%)12146(Top 80%)12146(Top 854%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21story building
+97ft-345ft

Overall

19438

Males

12068

M55-59

12068

5K→10K

3.1 - 6.2 mi

Top 71%
×5story building
+79ft-138ft

Overall

18806

Males

11822

M55-59

11822

10K→15K

6.2 - 9.3 mi

Top 73%
×3story building
+67ft-78ft

Overall

19438

Males

12068

M55-59

12068

15K→20K

9.3 - 12.4 mi

Top 78%
×5story building
+106ft-86ft

Overall

20681

Males

12615

M55-59

12615

20K→Half

12.4 - 13.1 mi

Top 83%
×2story building
+19ft-37ft

Overall

22051

Males

13221

M55-59

13221

Half→25K

13.1 - 15.5 mi

Top 84%
×4story building
+66ft-88ft

Overall

22320

Males

13290

M55-59

13290

25K→30K

15.5 - 18.6 mi

Top 96%
×9story building
+181ft-148ft

Overall

25562

Males

14666

M55-59

14666

30K→20M

18.6 - 20.0 mi

Top 87%
×5story building
+64ft-50ft

Overall

23166

Males

13537

M55-59

13537

20M→21M

20.0 - 21.0 mi

Top 92%
×8story building
+106ft-24ft

Overall

24405

Males

14086

M55-59

14086

21M→35K

21.0 - 21.8 mi

Top 93%
×7story building
+17ft-86ft

Overall

24763

Males

14201

M55-59

14201

35K→23M

21.8 - 23.0 mi

Top 85%
×5story building
+23ft-63ft

Overall

22587

Males

13196

M55-59

13196

23M→24M

23.0 - 24.0 mi

Top 86%
×6story building
+12ft-82ft

Overall

22882

Males

13289

M55-59

13289

24M→40K

24.0 - 24.9 mi

Top 87%
×1story
+6ft-20ft

Overall

23198

Males

13410

M55-59

13410

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

21036

Males

12409

M55-59

12409

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2story building
+22ft-21ft

Overall

20412

Males

12146

M55-59

12146

Passing Analysis

Category:
Athletes Passed
408
Passed By
6164
Net Change
-5756
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16677
5K → 10K561187-1131#16677#17808
10K → 15K53640-587#17808#18395
15K → 20K30677-647#18395#19042
20K → Half1200-199#19042#19241
Half → 25K15805-790#19241#20031
25K → 30K41984-1980#20031#22011
30K → 20M29155-126#22011#22137
20M → 21M11207-196#22137#22333
21M → 35K11138-127#22333#22460
35K → 23M5066-16#22460#22476
23M → 24M3142-11#22476#22487
24M → 40K2048-28#22487#22515
40K → 25.2M255+20#22515#22495
25.2M → Finish7210+62#22495#22433
TOTALS4086164-5756
📊

Passing Visuals

Category:
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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