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BOSTON MARATHON 2023

Daniel Hagerlof

Bib: 5141•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 37%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 40%
Division (M45-49)
#0 / 2252
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:04/mi
21:57
↑ 97↓ 3451.5%
10K· 6.21 mi
7:15/mi
44:30
↑ 79↓ 1380.4%
15K· 9.32 mi
8:10/mi
1:09:53
↑ 67↓ 78
20K· 12.43 mi
7:49/mi
1:34:09
↑ 106↓ 860.1%
Half· 13.11 mi
7:20/mi
1:39:09
↑ 19↓ 370.5%
25K· 15.53 mi
7:39/mi
1:57:41
↑ 66↓ 880.2%
30K· 18.64 mi
8:00/mi
2:22:32
↑ 181↓ 1480.2%
20M
7:49/mi
2:33:10
↑ 64↓ 500.2%
21M
8:31/mi
2:41:41
↑ 106↓ 241.6%
35K· 21.75 mi
7:22/mi
2:47:12
↑ 17↓ 861.7%
23M
7:53/mi
2:57:04
↑ 23↓ 630.6%
24M
7:43/mi
3:04:47
↓ 821.3%
40K· 24.85 mi
7:49/mi
3:11:28
↓ 200.3%
25.2M
8:19/mi
3:14:20
↑ 13↓ 160.2%
Finish· 26.22 mi
7:36/mi
3:22:05
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:09
Pace7:34 /mi
2nd Half
Distance13.11 mi
Time1:42:56
Pace7:51 /mi
📊Positive Split: 3.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:1221:577:0421:57
7:04
-
10K
6.21 mi10:46:4544:307:1022:33
7:15
+0:11
15K
9.32 mi11:12:081:09:537:3025:23
8:10
+0:55
20K
12.43 mi11:36:241:34:097:3524:16
7:49
-0:21
Half
13.11 mi11:41:241:39:097:345:00
7:20
-0:29
25K
15.53 mi11:59:561:57:417:3518:32
7:39
+0:19
30K
18.64 mi12:24:472:22:327:3924:51
8:00
+0:21
20M
20.00 mi12:35:252:33:107:3910:38
7:49
-0:11
21M
21.00 mi12:43:562:41:417:428:31
8:31
+0:42
35K
21.75 mi12:49:272:47:127:415:31
7:22
-1:09
23M
23.00 mi12:59:192:57:047:429:52
7:53
+0:31
24M
24.00 mi13:07:023:04:477:427:43
7:43
-0:10
40K
24.85 mi13:13:433:11:287:426:41
7:49
+0:06
25.2M
25.20 mi13:16:353:14:207:432:52
8:19
+0:30
Finish
26.22 mi13:24:203:22:057:437:45
7:36
-0:43

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

7:04 /mi

Average Pace

7:43 /mi

Slowest Pace

8:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:02:46

31% of race

Time at Steady Pace

1:42:33

51% of race

Time at Slower Pace

36:46

18% of race

Average Pace: 7:42 /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 mi10:24:1221:577:0421:57
7:04
#6664
10K
6.21 mi10:46:4544:307:1022:33
7:15
#7503
15K
9.32 mi11:12:081:09:537:3025:23
8:10
#10018
20K
12.43 mi11:36:241:34:097:3524:16
7:49
#10477
Half
13.11 mi11:41:241:39:097:345:00
7:20
#10392
25K
15.53 mi11:59:561:57:417:3518:32
7:39
#10272
30K
18.64 mi12:24:472:22:327:3924:51
8:00
#10330
20M
20.00 mi12:35:252:33:107:3910:38
7:49
#10222
21M
21.00 mi12:43:562:41:417:428:31
8:31
#10210
35K
21.75 mi12:49:272:47:127:415:31
7:22
#10093
23M
23.00 mi12:59:192:57:047:429:52
7:53
#9987
24M
24.00 mi13:07:023:04:477:427:43
7:43
#9931
40K
24.85 mi13:13:433:11:287:426:41
7:49
#9857
25.2M
25.20 mi13:16:353:14:207:432:52
8:19
#9813
Finish
26.22 mi13:24:203:22:057:437:45
7:36
#9750
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi66646015601515636(Top 59%)10539(Top 69%)10539(Top 468%)
10K6.21 mi3.10 mi7503-8396638-6236638-6238537(Top 32%)7283(Top 48%)7283(Top 323%)
15K9.32 mi3.11 mi10018-25158167-15298167-152915636(Top 59%)10539(Top 69%)10539(Top 468%)
20K12.43 mi3.11 mi10477-4598403-2368403-23611815(Top 44%)8936(Top 59%)8936(Top 397%)
Half13.11 mi0.68 mi10392+858354+498354+498810(Top 33%)7401(Top 49%)7401(Top 329%)
25K15.53 mi2.42 mi10272+1208275+798275+799863(Top 37%)7905(Top 52%)7905(Top 351%)
30K18.64 mi3.11 mi10330-588247+288247+2810880(Top 41%)8282(Top 55%)8282(Top 368%)
20M20.00 mi1.36 mi10222+1088176+718176+719055(Top 34%)7230(Top 48%)7230(Top 321%)
21M21.00 mi1.00 mi10210+128148+288148+2810550(Top 40%)7883(Top 52%)7883(Top 350%)
35K21.75 mi0.75 mi10093+1178066+828066+827649(Top 29%)6291(Top 41%)6291(Top 279%)
23M23.00 mi1.25 mi9987+1067994+727994+728936(Top 34%)6936(Top 46%)6936(Top 308%)
24M24.00 mi1.00 mi9931+567920+747920+749177(Top 34%)6980(Top 46%)6980(Top 310%)
40K24.85 mi0.85 mi9857+747849+717849+718776(Top 33%)6700(Top 44%)6700(Top 298%)
25.2M25.20 mi0.35 mi9813+447814+357814+358358(Top 31%)6390(Top 42%)6390(Top 284%)
Finish26.22 mi1.02 mi9750+637754+607754+609295(Top 35%)6915(Top 46%)6915(Top 307%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21story building
+97ft-345ft

Overall

15636

Males

10539

M45-49

10539

5K→10K

3.1 - 6.2 mi

Top 32%
×5story building
+79ft-138ft

Overall

8537

Males

7283

M45-49

7283

10K→15K

6.2 - 9.3 mi

Top 59%
×3story building
+67ft-78ft

Overall

15636

Males

10539

M45-49

10539

15K→20K

9.3 - 12.4 mi

Top 44%
×5story building
+106ft-86ft

Overall

11815

Males

8936

M45-49

8936

20K→Half

12.4 - 13.1 mi

Top 33%
×2story building
+19ft-37ft

Overall

8810

Males

7401

M45-49

7401

Half→25K

13.1 - 15.5 mi

Top 37%
×4story building
+66ft-88ft

Overall

9863

Males

7905

M45-49

7905

25K→30K

15.5 - 18.6 mi

Top 41%
×9story building
+181ft-148ft

Overall

10880

Males

8282

M45-49

8282

30K→20M

18.6 - 20.0 mi

Top 34%
×5story building
+64ft-50ft

Overall

9055

Males

7230

M45-49

7230

20M→21M

20.0 - 21.0 mi

Top 40%
×8story building
+106ft-24ft

Overall

10550

Males

7883

M45-49

7883

21M→35K

21.0 - 21.8 mi

Top 29%
×7story building
+17ft-86ft

Overall

7649

Males

6291

M45-49

6291

35K→23M

21.8 - 23.0 mi

Top 34%
×5story building
+23ft-63ft

Overall

8936

Males

6936

M45-49

6936

23M→24M

23.0 - 24.0 mi

Top 34%
×6story building
+12ft-82ft

Overall

9177

Males

6980

M45-49

6980

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

8776

Males

6700

M45-49

6700

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8358

Males

6390

M45-49

6390

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2story building
+22ft-21ft

Overall

9295

Males

6915

M45-49

6915

Passing Analysis

Category:
Athletes Passed
1333*
Passed By
4416
Net Change
-3086
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6664
5K → 10K23862-839#6664#7503
10K → 15K32516-2515#7503#10018
15K → 20K50509-459#10018#10477
20K → Half883+85#10477#10392
Half → 25K19676+120#10392#10272
25K → 30K136194-58#10272#10330
30K → 20M135*27+108#10330#10222
20M → 21M8674+12#10222#10210
21M → 35K1247+117#10210#10093
35K → 23M129*23+106#10093#9987
23M → 24M10548+56#9987#9931
24M → 40K10228+74#9931#9857
40K → 25.2M5814+44#9857#9813
25.2M → Finish98*35+63#9813#9750
TOTALS1333*4416-3086

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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