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BOSTON MARATHON 2023

Lars Jensen

Bib: 29317•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M50-54)
#0 / 2052
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
31:19
Rank: #23629
Start → 5K
31:19 | 10:05/mi
10K· 6.21 mi
1:01:51
Rank: #23525 (+104)
5K → 10K
30:32 | 9:50/mi
15K· 9.32 mi
1:32:08
Rank: #23330 (+195)
10K → 15K
30:17 | 9:45/mi
20K· 12.43 mi
2:03:31
Rank: #23297 (+33)
15K → 20K
31:23 | 10:06/mi
Half· 13.11 mi
2:10:19
Rank: #23289 (+8)
20K → Half
6:48 | 9:58/mi
25K· 15.53 mi
2:35:20
Rank: #23203 (+86)
Half → 25K
25:01 | 10:19/mi
30K· 18.64 mi
3:09:41
Rank: #23203
25K → 30K
34:21 | 11:03/mi
20M
3:24:46
Rank: #23158 (+45)
30K → 20M
15:05 | 11:06/mi
21M
3:36:49
Rank: #23148 (+10)
20M → 21M
12:03 | 12:03/mi
35K· 21.75 mi
3:45:19
Rank: #23167 (-19)
21M → 35K
8:30 | 11:22/mi
23M
3:59:17
Rank: #23143 (+24)
35K → 23M
13:58 | 11:09/mi
24M
4:09:57
Rank: #23112 (+31)
23M → 24M
10:40 | 10:40/mi
40K· 24.85 mi
4:19:10
Rank: #23052 (+60)
24M → 40K
9:13 | 10:47/mi
25.2M
4:23:41
Rank: #23082 (-30)
40K → 25.2M
4:31 | 13:06/mi
Finish· 26.22 mi
4:34:26
Rank: #23068 (+14)
25.2M → Finish
10:45 | 10:33/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:10:19
Pace9:56 /mi
2nd Half
Distance13.11 mi
Time2:24:07
Pace11:00 /mi
📊Positive Split: 10.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:5131:1910:0531:19
10:05
-
10K
6.21 mi12:22:231:01:519:5730:32
9:50
-0:15
15K
9.32 mi12:52:401:32:089:5330:17
9:45
-0:05
20K
12.43 mi13:24:032:03:319:5631:23
10:06
+0:21
Half
13.11 mi13:30:512:10:199:566:48
9:58
-0:08
25K
15.53 mi13:55:522:35:2010:0025:01
10:19
+0:21
30K
18.64 mi14:30:133:09:4110:1134:21
11:03
+0:44
20M
20.00 mi14:45:183:24:4610:1415:05
11:06
+0:03
21M
21.00 mi14:57:213:36:4910:1912:03
12:03
+0:57
35K
21.75 mi15:05:513:45:1910:228:30
11:22
-0:41
23M
23.00 mi15:19:493:59:1710:2413:58
11:09
-0:13
24M
24.00 mi15:30:294:09:5710:2510:40
10:40
-0:29
40K
24.85 mi15:39:424:19:1010:269:13
10:47
+0:07
25.2M
25.20 mi15:44:134:23:4110:284:31
13:06
+2:19
Finish
26.22 mi15:54:584:34:2610:2810:45
10:33
-2:33

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

9:45 /mi

Average Pace

10:28 /mi

Slowest Pace

13:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:10:19

47% of race

Time at Steady Pace

1:45:05

38% of race

Time at Slower Pace

39:02

14% of race

Average Pace: 10:28 /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 mi11:51:5131:1910:0531:19
10:05
#23629
10K
6.21 mi12:22:231:01:519:5730:32
9:50
#23525
15K
9.32 mi12:52:401:32:089:5330:17
9:45
#23330
20K
12.43 mi13:24:032:03:319:5631:23
10:06
#23297
Half
13.11 mi13:30:512:10:199:566:48
9:58
#23289
25K
15.53 mi13:55:522:35:2010:0025:01
10:19
#23203
30K
18.64 mi14:30:133:09:4110:1134:21
11:03
#23203
20M
20.00 mi14:45:183:24:4610:1415:05
11:06
#23158
21M
21.00 mi14:57:213:36:4910:1912:03
12:03
#23148
35K
21.75 mi15:05:513:45:1910:228:30
11:22
#23167
23M
23.00 mi15:19:493:59:1710:2413:58
11:09
#23143
24M
24.00 mi15:30:294:09:5710:2510:40
10:40
#23112
40K
24.85 mi15:39:424:19:1010:269:13
10:47
#23052
25.2M
25.20 mi15:44:134:23:4110:284:31
13:06
#23082
Finish
26.22 mi15:54:584:34:2610:2810:45
10:33
#23068
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi23629138921389222924(Top 86%)13604(Top 90%)13604(Top 663%)
10K6.21 mi3.10 mi23525+10413868+2413868+2423332(Top 88%)13782(Top 91%)13782(Top 672%)
15K9.32 mi3.11 mi23330+19513789+7913789+7922924(Top 86%)13604(Top 90%)13604(Top 663%)
20K12.43 mi3.11 mi23297+3313766+2313766+2323112(Top 87%)13683(Top 90%)13683(Top 667%)
Half13.11 mi0.68 mi23289+813763+313763+323201(Top 87%)13712(Top 90%)13712(Top 668%)
25K15.53 mi2.42 mi23203+8613722+4113722+4122876(Top 86%)13537(Top 89%)13537(Top 660%)
30K18.64 mi3.11 mi2320313697+2513697+2523172(Top 87%)13597(Top 90%)13597(Top 663%)
20M20.00 mi1.36 mi23158+4513661+3613661+3622872(Top 86%)13406(Top 88%)13406(Top 653%)
21M21.00 mi1.00 mi23148+1013640+2113640+2122825(Top 86%)13350(Top 88%)13350(Top 651%)
35K21.75 mi0.75 mi23167-1913641-113641-123890(Top 90%)13794(Top 91%)13794(Top 672%)
23M23.00 mi1.25 mi23143+2413626+1513626+1522646(Top 85%)13224(Top 87%)13224(Top 644%)
24M24.00 mi1.00 mi23112+3113603+2313603+2322374(Top 84%)13054(Top 86%)13054(Top 636%)
40K24.85 mi0.85 mi23052+6013559+4413559+4421895(Top 82%)12782(Top 84%)12782(Top 623%)
25.2M25.20 mi0.35 mi23082-3013573-1413573-1424071(Top 90%)13825(Top 91%)13825(Top 674%)
Finish26.22 mi1.02 mi23068+1413568+513568+523098(Top 87%)13384(Top 88%)13384(Top 652%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
×21stories
+97ft-345ft

Overall

22924

Males

13604

M50-54

13604

5K→10K

3.1 - 6.2 mi

Top 88%
×5stories
+79ft-138ft

Overall

23332

Males

13782

M50-54

13782

10K→15K

6.2 - 9.3 mi

Top 86%
×3stories
+67ft-78ft

Overall

22924

Males

13604

M50-54

13604

15K→20K

9.3 - 12.4 mi

Top 87%
×5stories
+106ft-86ft

Overall

23112

Males

13683

M50-54

13683

20K→Half

12.4 - 13.1 mi

Top 87%
×2stories
+19ft-37ft

Overall

23201

Males

13712

M50-54

13712

Half→25K

13.1 - 15.5 mi

Top 86%
×4stories
+66ft-88ft

Overall

22876

Males

13537

M50-54

13537

25K→30K

15.5 - 18.6 mi

Top 87%
×9stories
+181ft-148ft

Overall

23172

Males

13597

M50-54

13597

30K→20M

18.6 - 20.0 mi

Top 86%
×5stories
+64ft-50ft

Overall

22872

Males

13406

M50-54

13406

20M→21M

20.0 - 21.0 mi

Top 86%
×8stories
+106ft-24ft

Overall

22825

Males

13350

M50-54

13350

21M→35K

21.0 - 21.8 mi

Top 90%
×7stories
+17ft-86ft

Overall

23890

Males

13794

M50-54

13794

35K→23M

21.8 - 23.0 mi

Top 85%
×5stories
+23ft-63ft

Overall

22646

Males

13224

M50-54

13224

23M→24M

23.0 - 24.0 mi

Top 84%
×6stories
+12ft-82ft

Overall

22374

Males

13054

M50-54

13054

24M→40K

24.0 - 24.9 mi

Top 82%
×1story
+6ft-20ft

Overall

21895

Males

12782

M50-54

12782

40K→25.2M

24.9 - 25.2 mi

Top 90%
×1story
+13ft-16ft

Overall

24071

Males

13825

M50-54

13825

25.2M→Finish

25.2 - 26.2 mi

Top 87%
×2stories
+22ft-21ft

Overall

23098

Males

13384

M50-54

13384

Passing Analysis

Category:
Athletes Passed
1313
Passed By
752
Net Change
+561
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23629
5K → 10K268164+104#23629#23525
10K → 15K24045+195#23525#23330
15K → 20K133100+33#23330#23297
20K → Half2820+8#23297#23289
Half → 25K14559+86#23289#23203
25K → 30K1251250#23203#23203
30K → 20M7227+45#23203#23158
20M → 21M5343+10#23158#23148
21M → 35K2544-19#23148#23167
35K → 23M5733+24#23167#23143
23M → 24M5120+31#23143#23112
24M → 40K699+60#23112#23052
40K → 25.2M535-30#23052#23082
25.2M → Finish4228+14#23082#23068
TOTALS1313752+561
📊

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