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BOSTON MARATHON 2023

Louis-William Liebig

Bib: 7384•M

FL

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 15%
Gender (Male)
#0 / 15176
Top 25%
Division (M18-39)
#0 / 5285
Top 49%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:11
Rank: #4841
Start → 5K
21:11 | 6:49/mi
10K· 6.21 mi
41:50
Rank: #4304 (+537)
5K → 10K
20:39 | 6:39/mi
15K· 9.32 mi
1:02:31
Rank: #4087 (+217)
10K → 15K
20:41 | 6:39/mi
20K· 12.43 mi
1:23:27
Rank: #4011 (+76)
15K → 20K
20:56 | 6:44/mi
Half· 13.11 mi
1:28:01
Rank: #4021 (-10)
20K → Half
4:34 | 6:42/mi
25K· 15.53 mi
1:44:23
Rank: #3962 (+59)
Half → 25K
16:22 | 6:45/mi
30K· 18.64 mi
2:06:00
Rank: #3947 (+15)
25K → 30K
21:37 | 6:57/mi
20M
2:15:28
Rank: #3899 (+48)
30K → 20M
9:28 | 6:58/mi
21M
2:22:40
Rank: #3800 (+99)
20M → 21M
7:12 | 7:12/mi
35K· 21.75 mi
2:27:46
Rank: #3825 (-25)
21M → 35K
5:06 | 6:49/mi
23M
2:36:38
Rank: #3842 (-17)
35K → 23M
8:52 | 7:05/mi
24M
2:43:34
Rank: #3866 (-24)
23M → 24M
6:56 | 6:56/mi
40K· 24.85 mi
2:49:44
Rank: #3939 (-73)
24M → 40K
6:10 | 7:13/mi
25.2M
2:52:19
Rank: #3927 (+12)
40K → 25.2M
2:35 | 7:29/mi
Finish· 26.22 mi
2:59:23
Rank: #3985 (-58)
25.2M → Finish
7:04 | 6:56/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:01
Pace6:43 /mi
2nd Half
Distance13.11 mi
Time1:31:22
Pace6:58 /mi
📊Positive Split: 3.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:3721:116:4921:11
6:49
-
10K
6.21 mi10:46:1641:506:4420:39
6:39
-0:10
15K
9.32 mi11:06:571:02:316:4220:41
6:39
0:00
20K
12.43 mi11:27:531:23:276:4320:56
6:44
+0:05
Half
13.11 mi11:32:271:28:016:434:34
6:42
-0:02
25K
15.53 mi11:48:491:44:236:4316:22
6:45
+0:03
30K
18.64 mi12:10:262:06:006:4621:37
6:57
+0:12
20M
20.00 mi12:19:542:15:286:469:28
6:58
+0:01
21M
21.00 mi12:27:062:22:406:487:12
7:12
+0:14
35K
21.75 mi12:32:122:27:466:485:06
6:49
-0:23
23M
23.00 mi12:41:042:36:386:498:52
7:05
+0:16
24M
24.00 mi12:48:002:43:346:496:56
6:56
-0:09
40K
24.85 mi12:54:102:49:446:506:10
7:13
+0:17
25.2M
25.20 mi12:56:452:52:196:502:35
7:29
+0:16
Finish
26.22 mi13:03:492:59:236:517:04
6:56
-0:33

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

6:39 /mi

Average Pace

6:51 /mi

Slowest Pace

7:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:56:48

99% of race

Time at Steady Pace

2:35

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:50 /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 mi10:25:3721:116:4921:11
6:49
#4841
10K
6.21 mi10:46:1641:506:4420:39
6:39
#4304
15K
9.32 mi11:06:571:02:316:4220:41
6:39
#4087
20K
12.43 mi11:27:531:23:276:4320:56
6:44
#4011
Half
13.11 mi11:32:271:28:016:434:34
6:42
#4021
25K
15.53 mi11:48:491:44:236:4316:22
6:45
#3962
30K
18.64 mi12:10:262:06:006:4621:37
6:57
#3947
20M
20.00 mi12:19:542:15:286:469:28
6:58
#3899
21M
21.00 mi12:27:062:22:406:487:12
7:12
#3800
35K
21.75 mi12:32:122:27:466:485:06
6:49
#3825
23M
23.00 mi12:41:042:36:386:498:52
7:05
#3842
24M
24.00 mi12:48:002:43:346:496:56
6:56
#3866
40K
24.85 mi12:54:102:49:446:506:10
7:13
#3939
25.2M
25.20 mi12:56:452:52:196:502:35
7:29
#3927
Finish
26.22 mi13:03:492:59:236:517:04
6:56
#3985
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4841450045003748(Top 14%)3532(Top 23%)3532(Top 67%)
10K6.21 mi3.10 mi4304+5374033+4674033+4673862(Top 15%)3639(Top 24%)3639(Top 69%)
15K9.32 mi3.11 mi4087+2173841+1923841+1923748(Top 14%)3532(Top 23%)3532(Top 67%)
20K12.43 mi3.11 mi4011+763771+703771+703873(Top 15%)3653(Top 24%)3653(Top 69%)
Half13.11 mi0.68 mi4021-103778-73778-74252(Top 16%)3976(Top 26%)3976(Top 75%)
25K15.53 mi2.42 mi3962+593730+483730+483755(Top 14%)3535(Top 23%)3535(Top 67%)
30K18.64 mi3.11 mi3947+153718+123718+124063(Top 15%)3793(Top 25%)3793(Top 72%)
20M20.00 mi1.36 mi3899+483672+463672+463817(Top 14%)3553(Top 23%)3553(Top 67%)
21M21.00 mi1.00 mi3800+993579+933579+933115(Top 12%)2919(Top 19%)2919(Top 55%)
35K21.75 mi0.75 mi3825-253601-223601-224273(Top 16%)3908(Top 26%)3908(Top 74%)
23M23.00 mi1.25 mi3842-173617-163617-164199(Top 16%)3842(Top 25%)3842(Top 73%)
24M24.00 mi1.00 mi3866-243631-143631-144323(Top 16%)3915(Top 26%)3915(Top 74%)
40K24.85 mi0.85 mi3939-733689-583689-584921(Top 18%)4288(Top 28%)4288(Top 81%)
25.2M25.20 mi0.35 mi3927+123679+103679+103834(Top 14%)3424(Top 23%)3424(Top 65%)
Finish26.22 mi1.02 mi3985-583729-503729-504803(Top 18%)4126(Top 27%)4126(Top 78%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21stories
+97ft-345ft

Overall

3748

Males

3532

M18-39

3532

5K→10K

3.1 - 6.2 mi

Top 15%
×5stories
+79ft-138ft

Overall

3862

Males

3639

M18-39

3639

10K→15K

6.2 - 9.3 mi

Top 14%
×3stories
+67ft-78ft

Overall

3748

Males

3532

M18-39

3532

15K→20K

9.3 - 12.4 mi

Top 15%
×5stories
+106ft-86ft

Overall

3873

Males

3653

M18-39

3653

20K→Half

12.4 - 13.1 mi

Top 16%
×2stories
+19ft-37ft

Overall

4252

Males

3976

M18-39

3976

Half→25K

13.1 - 15.5 mi

Top 14%
×4stories
+66ft-88ft

Overall

3755

Males

3535

M18-39

3535

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

4063

Males

3793

M18-39

3793

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

3817

Males

3553

M18-39

3553

20M→21M

20.0 - 21.0 mi

Top 12%
×8stories
+106ft-24ft

Overall

3115

Males

2919

M18-39

2919

21M→35K

21.0 - 21.8 mi

Top 16%
×7stories
+17ft-86ft

Overall

4273

Males

3908

M18-39

3908

35K→23M

21.8 - 23.0 mi

Top 16%
×5stories
+23ft-63ft

Overall

4199

Males

3842

M18-39

3842

23M→24M

23.0 - 24.0 mi

Top 16%
×6stories
+12ft-82ft

Overall

4323

Males

3915

M18-39

3915

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

4921

Males

4288

M18-39

4288

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3834

Males

3424

M18-39

3424

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2stories
+22ft-21ft

Overall

4803

Males

4126

M18-39

4126

Passing Analysis

Category:
Athletes Passed
1627
Passed By
771
Net Change
+856
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4841
5K → 10K57740+537#4841#4304
10K → 15K25235+217#4304#4087
15K → 20K14872+76#4087#4011
20K → Half1525-10#4011#4021
Half → 25K10647+59#4021#3962
25K → 30K119104+15#3962#3947
30K → 20M8739+48#3947#3899
20M → 21M11920+99#3899#3800
21M → 35K2247-25#3800#3825
35K → 23M5370-17#3825#3842
23M → 24M4266-24#3842#3866
24M → 40K31104-73#3866#3939
40K → 25.2M2816+12#3939#3927
25.2M → Finish2886-58#3927#3985
TOTALS1627771+856
📊

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