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BOSTON MARATHON 2023

Jonas Bjoern Heilesen

Bib: 27804•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M40-44)
#0 / 2241
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:46
Rank: #21405
Start → 5K
28:46 | 9:16/mi
10K· 6.21 mi
57:47
Rank: #21724 (-319)
5K → 10K
29:01 | 9:20/mi
15K· 9.32 mi
1:28:05
Rank: #22154 (-430)
10K → 15K
30:18 | 9:45/mi
20K· 12.43 mi
1:59:51
Rank: #22531 (-377)
15K → 20K
31:46 | 10:13/mi
Half· 13.11 mi
2:07:02
Rank: #22655 (-124)
20K → Half
7:11 | 10:32/mi
25K· 15.53 mi
2:33:18
Rank: #22892 (-237)
Half → 25K
26:16 | 10:50/mi
30K· 18.64 mi
3:07:39
Rank: #22953 (-61)
25K → 30K
34:21 | 11:03/mi
20M
3:23:10
Rank: #22993 (-40)
30K → 20M
15:31 | 11:25/mi
21M
3:35:28
Rank: #23008 (-15)
20M → 21M
12:18 | 12:18/mi
35K· 21.75 mi
3:43:51
Rank: #23040 (-32)
21M → 35K
8:23 | 11:12/mi
23M
3:57:26
Rank: #22959 (+81)
35K → 23M
13:35 | 10:51/mi
24M
4:07:35
Rank: #22875 (+84)
23M → 24M
10:09 | 10:09/mi
40K· 24.85 mi
4:16:37
Rank: #22832 (+43)
24M → 40K
9:02 | 10:34/mi
25.2M
4:20:46
Rank: #22831 (+1)
40K → 25.2M
4:09 | 12:02/mi
Finish· 26.22 mi
4:31:22
Rank: #22842 (-11)
25.2M → Finish
10:36 | 10:24/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:07:02
Pace9:41 /mi
2nd Half
Distance13.11 mi
Time2:24:20
Pace11:01 /mi
📊Positive Split: 13.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:5728:469:1628:46
9:16
-
10K
6.21 mi12:14:5857:479:1829:01
9:20
+0:04
15K
9.32 mi12:45:161:28:059:2730:18
9:45
+0:25
20K
12.43 mi13:17:021:59:519:3931:46
10:13
+0:28
Half
13.11 mi13:24:132:07:029:417:11
10:32
+0:19
25K
15.53 mi13:50:292:33:189:5226:16
10:50
+0:18
30K
18.64 mi14:24:503:07:3910:0434:21
11:03
+0:13
20M
20.00 mi14:40:213:23:1010:0915:31
11:25
+0:22
21M
21.00 mi14:52:393:35:2810:1612:18
12:18
+0:53
35K
21.75 mi15:01:023:43:5110:188:23
11:12
-1:06
23M
23.00 mi15:14:373:57:2610:1913:35
10:51
-0:21
24M
24.00 mi15:24:464:07:3510:1910:09
10:09
-0:42
40K
24.85 mi15:33:484:16:3710:199:02
10:34
+0:25
25.2M
25.20 mi15:37:574:20:4610:214:09
12:02
+1:28
Finish
26.22 mi15:48:334:31:2210:2110:36
10:24
-1:38

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

9:16 /mi

Average Pace

10:21 /mi

Slowest Pace

12:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:28:05

32% of race

Time at Steady Pace

1:48:35

40% of race

Time at Slower Pace

1:14:42

28% of race

Average Pace: 10:21 /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 mi11:45:5728:469:1628:46
9:16
#21405
10K
6.21 mi12:14:5857:479:1829:01
9:20
#21724
15K
9.32 mi12:45:161:28:059:2730:18
9:45
#22154
20K
12.43 mi13:17:021:59:519:3931:46
10:13
#22531
Half
13.11 mi13:24:132:07:029:417:11
10:32
#22655
25K
15.53 mi13:50:292:33:189:5226:16
10:50
#22892
30K
18.64 mi14:24:503:07:3910:0434:21
11:03
#22953
20M
20.00 mi14:40:213:23:1010:0915:31
11:25
#22993
21M
21.00 mi14:52:393:35:2810:1612:18
12:18
#23008
35K
21.75 mi15:01:023:43:5110:188:23
11:12
#23040
23M
23.00 mi15:14:373:57:2610:1913:35
10:51
#22959
24M
24.00 mi15:24:464:07:3510:1910:09
10:09
#22875
40K
24.85 mi15:33:484:16:3710:199:02
10:34
#22832
25.2M
25.20 mi15:37:574:20:4610:214:09
12:02
#22831
Finish
26.22 mi15:48:334:31:2210:2110:36
10:24
#22842
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi21405128051280522935(Top 86%)13607(Top 90%)13607(Top 607%)
10K6.21 mi3.10 mi21724-31913002-19713002-19722047(Top 83%)13187(Top 87%)13187(Top 588%)
15K9.32 mi3.11 mi22154-43013218-21613218-21622935(Top 86%)13607(Top 90%)13607(Top 607%)
20K12.43 mi3.11 mi22531-37713400-18213400-18223334(Top 88%)13779(Top 91%)13779(Top 615%)
Half13.11 mi0.68 mi22655-12413466-6613466-6624243(Top 91%)14159(Top 93%)14159(Top 632%)
25K15.53 mi2.42 mi22892-23713567-10113567-10123726(Top 89%)13895(Top 92%)13895(Top 620%)
30K18.64 mi3.11 mi22953-6113570-313570-323171(Top 87%)13596(Top 90%)13596(Top 607%)
20M20.00 mi1.36 mi22993-4013577-713577-723383(Top 88%)13637(Top 90%)13637(Top 609%)
21M21.00 mi1.00 mi23008-15135771357723187(Top 87%)13518(Top 89%)13518(Top 603%)
35K21.75 mi0.75 mi23040-3213586-913586-923653(Top 89%)13666(Top 90%)13666(Top 610%)
23M23.00 mi1.25 mi22959+8113534+5213534+5222054(Top 83%)12931(Top 85%)12931(Top 577%)
24M24.00 mi1.00 mi22875+8413482+5213482+5221184(Top 80%)12505(Top 82%)12505(Top 558%)
40K24.85 mi0.85 mi22832+4313457+2513457+2521364(Top 80%)12530(Top 83%)12530(Top 559%)
25.2M25.20 mi0.35 mi22831+113455+213455+222547(Top 85%)13102(Top 86%)13102(Top 585%)
Finish26.22 mi1.02 mi22842-1113454+113454+122797(Top 86%)13226(Top 87%)13226(Top 590%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
×21stories
+97ft-345ft

Overall

22935

Males

13607

M40-44

13607

5K→10K

3.1 - 6.2 mi

Top 83%
×5stories
+79ft-138ft

Overall

22047

Males

13187

M40-44

13187

10K→15K

6.2 - 9.3 mi

Top 86%
×3stories
+67ft-78ft

Overall

22935

Males

13607

M40-44

13607

15K→20K

9.3 - 12.4 mi

Top 88%
×5stories
+106ft-86ft

Overall

23334

Males

13779

M40-44

13779

20K→Half

12.4 - 13.1 mi

Top 91%
×2stories
+19ft-37ft

Overall

24243

Males

14159

M40-44

14159

Half→25K

13.1 - 15.5 mi

Top 89%
×4stories
+66ft-88ft

Overall

23726

Males

13895

M40-44

13895

25K→30K

15.5 - 18.6 mi

Top 87%
×9stories
+181ft-148ft

Overall

23171

Males

13596

M40-44

13596

30K→20M

18.6 - 20.0 mi

Top 88%
×5stories
+64ft-50ft

Overall

23383

Males

13637

M40-44

13637

20M→21M

20.0 - 21.0 mi

Top 87%
×8stories
+106ft-24ft

Overall

23187

Males

13518

M40-44

13518

21M→35K

21.0 - 21.8 mi

Top 89%
×7stories
+17ft-86ft

Overall

23653

Males

13666

M40-44

13666

35K→23M

21.8 - 23.0 mi

Top 83%
×5stories
+23ft-63ft

Overall

22054

Males

12931

M40-44

12931

23M→24M

23.0 - 24.0 mi

Top 80%
×6stories
+12ft-82ft

Overall

21184

Males

12505

M40-44

12505

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

21364

Males

12530

M40-44

12530

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

22547

Males

13102

M40-44

13102

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2stories
+22ft-21ft

Overall

22797

Males

13226

M40-44

13226

Passing Analysis

Category:
Athletes Passed
780
Passed By
2217
Net Change
-1437
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21405
5K → 10K145464-319#21405#21724
10K → 15K48478-430#21724#22154
15K → 20K52429-377#22154#22531
20K → Half5129-124#22531#22655
Half → 25K40277-237#22655#22892
25K → 30K96157-61#22892#22953
30K → 20M5191-40#22953#22993
20M → 21M3752-15#22993#23008
21M → 35K2153-32#23008#23040
35K → 23M9514+81#23040#22959
23M → 24M895+84#22959#22875
24M → 40K5916+43#22875#22832
40K → 25.2M1817+1#22832#22831
25.2M → Finish2435-11#22831#22842
TOTALS7802217-1437
📊

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