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BOSTON MARATHON 2023

Daniel Lautzenheiser

Bib: 1878•M

NC

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 3%
Gender (Male)
#0 / 15176
Top 4%
Division (M18-39)
#0 / 5285
Top 10%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:56
Rank: #881
Start → 5K
18:56 | 6:06/mi
10K· 6.21 mi
37:39
Rank: #855 (+26)
5K → 10K
18:43 | 6:01/mi
15K· 9.32 mi
56:22
Rank: #829 (+26)
10K → 15K
18:43 | 6:01/mi
20K· 12.43 mi
1:15:26
Rank: #822 (+7)
15K → 20K
19:04 | 6:08/mi
Half· 13.11 mi
1:19:34
Rank: #825 (-3)
20K → Half
4:08 | 6:03/mi
25K· 15.53 mi
1:34:22
Rank: #793 (+32)
Half → 25K
14:48 | 6:06/mi
30K· 18.64 mi
1:53:41
Rank: #773 (+20)
25K → 30K
19:19 | 6:13/mi
20M
2:02:02
Rank: #753 (+20)
30K → 20M
8:21 | 6:09/mi
21M
2:08:35
Rank: #738 (+15)
20M → 21M
6:33 | 6:33/mi
35K· 21.75 mi
2:13:03
Rank: #730 (+8)
21M → 35K
4:28 | 5:58/mi
23M
2:20:51
Rank: #721 (+9)
35K → 23M
7:48 | 6:14/mi
24M
2:26:51
Rank: #700 (+21)
23M → 24M
6:00 | 6:00/mi
40K· 24.85 mi
2:32:14
Rank: #693 (+7)
24M → 40K
5:23 | 6:18/mi
25.2M
2:34:34
Rank: #688 (+5)
40K → 25.2M
2:20 | 6:46/mi
Finish· 26.22 mi
2:40:35
Rank: #671 (+17)
25.2M → Finish
6:01 | 5:54/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:19:34
Pace6:04 /mi
2nd Half
Distance13.11 mi
Time1:21:01
Pace6:11 /mi
📊Positive Split: 1.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:2318:566:0618:56
6:06
-
10K
6.21 mi10:38:0637:396:0418:43
6:01
-0:05
15K
9.32 mi10:56:4956:226:0318:43
6:01
0:00
20K
12.43 mi11:15:531:15:266:0419:04
6:08
+0:07
Half
13.11 mi11:20:011:19:346:044:08
6:03
-0:05
25K
15.53 mi11:34:491:34:226:0414:48
6:06
+0:03
30K
18.64 mi11:54:081:53:416:0619:19
6:13
+0:07
20M
20.00 mi12:02:292:02:026:068:21
6:09
-0:04
21M
21.00 mi12:09:022:08:356:076:33
6:33
+0:24
35K
21.75 mi12:13:302:13:036:074:28
5:58
-0:35
23M
23.00 mi12:21:182:20:516:077:48
6:14
+0:16
24M
24.00 mi12:27:182:26:516:076:00
6:00
-0:14
40K
24.85 mi12:32:412:32:146:075:23
6:18
+0:18
25.2M
25.20 mi12:35:012:34:346:082:20
6:46
+0:28
Finish
26.22 mi12:41:022:40:356:086:01
5:54
-0:52

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

5:54 /mi

Average Pace

6:08 /mi

Slowest Pace

6:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:31:42

94% of race

Time at Steady Pace

8:53

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:07 /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 mi10:19:2318:566:0618:56
6:06
#881
10K
6.21 mi10:38:0637:396:0418:43
6:01
#855
15K
9.32 mi10:56:4956:226:0318:43
6:01
#829
20K
12.43 mi11:15:531:15:266:0419:04
6:08
#822
Half
13.11 mi11:20:011:19:346:044:08
6:03
#825
25K
15.53 mi11:34:491:34:226:0414:48
6:06
#793
30K
18.64 mi11:54:081:53:416:0619:19
6:13
#773
20M
20.00 mi12:02:292:02:026:068:21
6:09
#753
21M
21.00 mi12:09:022:08:356:076:33
6:33
#738
35K
21.75 mi12:13:302:13:036:074:28
5:58
#730
23M
23.00 mi12:21:182:20:516:077:48
6:14
#721
24M
24.00 mi12:27:182:26:516:076:00
6:00
#700
40K
24.85 mi12:32:412:32:146:075:23
6:18
#693
25.2M
25.20 mi12:35:012:34:346:082:20
6:46
#688
Finish
26.22 mi12:41:022:40:356:086:01
5:54
#671
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi881828828762(Top 3%)717(Top 5%)717(Top 14%)
10K6.21 mi3.10 mi855+26805+23805+23864(Top 3%)816(Top 5%)816(Top 15%)
15K9.32 mi3.11 mi829+26781+24781+24762(Top 3%)717(Top 5%)717(Top 14%)
20K12.43 mi3.11 mi822+7777+4777+4875(Top 3%)830(Top 5%)830(Top 16%)
Half13.11 mi0.68 mi825-3780-3780-3895(Top 3%)852(Top 6%)852(Top 16%)
25K15.53 mi2.42 mi793+32748+32748+32751(Top 3%)710(Top 5%)710(Top 13%)
30K18.64 mi3.11 mi773+20731+17731+17715(Top 3%)678(Top 4%)678(Top 13%)
20M20.00 mi1.36 mi753+20711+20711+20564(Top 2%)530(Top 3%)530(Top 10%)
21M21.00 mi1.00 mi738+15696+15696+15746(Top 3%)704(Top 5%)704(Top 13%)
35K21.75 mi0.75 mi730+8688+8688+8624(Top 2%)586(Top 4%)586(Top 11%)
23M23.00 mi1.25 mi721+9679+9679+9667(Top 3%)629(Top 4%)629(Top 12%)
24M24.00 mi1.00 mi700+21659+20659+20547(Top 2%)517(Top 3%)517(Top 10%)
40K24.85 mi0.85 mi693+7651+8651+8872(Top 3%)825(Top 5%)825(Top 16%)
25.2M25.20 mi0.35 mi688+5646+5646+51025(Top 4%)972(Top 6%)972(Top 18%)
Finish26.22 mi1.02 mi671+17630+16630+16533(Top 2%)507(Top 3%)507(Top 10%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21stories
+97ft-345ft

Overall

762

Males

717

M18-39

717

5K→10K

3.1 - 6.2 mi

Top 3%
×5stories
+79ft-138ft

Overall

864

Males

816

M18-39

816

10K→15K

6.2 - 9.3 mi

Top 3%
×3stories
+67ft-78ft

Overall

762

Males

717

M18-39

717

15K→20K

9.3 - 12.4 mi

Top 3%
×5stories
+106ft-86ft

Overall

875

Males

830

M18-39

830

20K→Half

12.4 - 13.1 mi

Top 3%
×2stories
+19ft-37ft

Overall

895

Males

852

M18-39

852

Half→25K

13.1 - 15.5 mi

Top 3%
×4stories
+66ft-88ft

Overall

751

Males

710

M18-39

710

25K→30K

15.5 - 18.6 mi

Top 3%
×9stories
+181ft-148ft

Overall

715

Males

678

M18-39

678

30K→20M

18.6 - 20.0 mi

Top 2%
×5stories
+64ft-50ft

Overall

564

Males

530

M18-39

530

20M→21M

20.0 - 21.0 mi

Top 3%
×8stories
+106ft-24ft

Overall

746

Males

704

M18-39

704

21M→35K

21.0 - 21.8 mi

Top 2%
×7stories
+17ft-86ft

Overall

624

Males

586

M18-39

586

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

667

Males

629

M18-39

629

23M→24M

23.0 - 24.0 mi

Top 2%
×6stories
+12ft-82ft

Overall

547

Males

517

M18-39

517

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

872

Males

825

M18-39

825

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1025

Males

972

M18-39

972

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2stories
+22ft-21ft

Overall

533

Males

507

M18-39

507

Passing Analysis

Category:
Athletes Passed
349
Passed By
139
Net Change
+210
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#881
5K → 10K5832+26#881#855
10K → 15K3812+26#855#829
15K → 20K3124+7#829#822
20K → Half25-3#822#825
Half → 25K4614+32#825#793
25K → 30K3212+20#793#773
30K → 20M211+20#773#753
20M → 21M216+15#753#738
21M → 35K157+8#738#730
35K → 23M1910+9#730#721
23M → 24M254+21#721#700
24M → 40K136+7#700#693
40K → 25.2M72+5#693#688
25.2M → Finish214+17#688#671
TOTALS349139+210
📊

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