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BOSTON MARATHON 2023

Henry Loehrke

Bib: 3947•M

NY

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 9%
Gender (Male)
#0 / 15176
Top 15%
Division (M18-39)
#0 / 5285
Top 34%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
19:47
Rank: #1685
Start → 5K
19:47 | 6:22/mi
10K· 6.21 mi
39:15
Rank: #1633 (+52)
5K → 10K
19:28 | 6:16/mi
15K· 9.32 mi
58:55
Rank: #1677 (-44)
10K → 15K
19:40 | 6:20/mi
20K· 12.43 mi
1:18:49
Rank: #1700 (-23)
15K → 20K
19:54 | 6:24/mi
Half· 13.11 mi
1:23:08
Rank: #1707 (-7)
20K → Half
4:19 | 6:20/mi
25K· 15.53 mi
1:38:54
Rank: #1768 (-61)
Half → 25K
15:46 | 6:30/mi
30K· 18.64 mi
2:00:07
Rank: #1930 (-162)
25K → 30K
21:13 | 6:50/mi
20M
2:09:38
Rank: #2054 (-124)
30K → 20M
9:31 | 7:00/mi
21M
2:17:05
Rank: #2147 (-93)
20M → 21M
7:27 | 7:27/mi
35K· 21.75 mi
2:22:03
Rank: #2170 (-23)
21M → 35K
4:58 | 6:38/mi
23M
2:30:52
Rank: #2223 (-53)
35K → 23M
8:49 | 7:03/mi
24M
2:37:54
Rank: #2304 (-81)
23M → 24M
7:02 | 7:02/mi
40K· 24.85 mi
2:44:01
Rank: #2338 (-34)
24M → 40K
6:07 | 7:09/mi
25.2M
2:46:38
Rank: #2350 (-12)
40K → 25.2M
2:37 | 7:35/mi
Finish· 26.22 mi
2:53:37
Rank: #2392 (-42)
25.2M → Finish
6:59 | 6:51/mi

Course Map & Elevation

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:08
Pace6:20 /mi
2nd Half
Distance13.11 mi
Time1:30:29
Pace6:54 /mi
📊Positive Split: 8.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:1119:476:2219:47
6:22
-
10K
6.21 mi10:40:3939:156:1919:28
6:16
-0:06
15K
9.32 mi11:00:1958:556:1919:40
6:20
+0:04
20K
12.43 mi11:20:131:18:496:2119:54
6:24
+0:04
Half
13.11 mi11:24:321:23:086:204:19
6:20
-0:04
25K
15.53 mi11:40:181:38:546:2215:46
6:30
+0:10
30K
18.64 mi12:01:312:00:076:2721:13
6:50
+0:20
20M
20.00 mi12:11:022:09:386:299:31
7:00
+0:10
21M
21.00 mi12:18:292:17:056:327:27
7:27
+0:27
35K
21.75 mi12:23:272:22:036:324:58
6:38
-0:49
23M
23.00 mi12:32:162:30:526:348:49
7:03
+0:25
24M
24.00 mi12:39:182:37:546:357:02
7:02
-0:01
40K
24.85 mi12:45:252:44:016:366:07
7:09
+0:07
25.2M
25.20 mi12:48:022:46:386:372:37
7:35
+0:26
Finish
26.22 mi12:55:012:53:376:386:59
6:51
-0:44

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

6:16 /mi

Average Pace

6:38 /mi

Slowest Pace

7:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

1:38:54

57% of race

Time at Steady Pace

49:43

29% of race

Time at Slower Pace

25:00

14% of race

Average Pace: 6:37 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:21:1119:476:2219:47
6:22
#1685
10K
6.21 mi10:40:3939:156:1919:28
6:16
#1633
15K
9.32 mi11:00:1958:556:1919:40
6:20
#1677
20K
12.43 mi11:20:131:18:496:2119:54
6:24
#1700
Half
13.11 mi11:24:321:23:086:204:19
6:20
#1707
25K
15.53 mi11:40:181:38:546:2215:46
6:30
#1768
30K
18.64 mi12:01:312:00:076:2721:13
6:50
#1930
20M
20.00 mi12:11:022:09:386:299:31
7:00
#2054
21M
21.00 mi12:18:292:17:056:327:27
7:27
#2147
35K
21.75 mi12:23:272:22:036:324:58
6:38
#2170
23M
23.00 mi12:32:162:30:526:348:49
7:03
#2223
24M
24.00 mi12:39:182:37:546:357:02
7:02
#2304
40K
24.85 mi12:45:252:44:016:366:07
7:09
#2338
25.2M
25.20 mi12:48:022:46:386:372:37
7:35
#2350
Finish
26.22 mi12:55:012:53:376:386:59
6:51
#2392
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1685160616061791(Top 7%)1715(Top 11%)1715(Top 32%)
10K6.21 mi3.10 mi1633+521559+471559+471617(Top 6%)1544(Top 10%)1544(Top 29%)
15K9.32 mi3.11 mi1677-441603-441603-441791(Top 7%)1715(Top 11%)1715(Top 32%)
20K12.43 mi3.11 mi1700-231627-241627-241823(Top 7%)1746(Top 12%)1746(Top 33%)
Half13.11 mi0.68 mi1707-71634-71634-71913(Top 7%)1838(Top 12%)1838(Top 35%)
25K15.53 mi2.42 mi1768-611692-581692-582182(Top 8%)2093(Top 14%)2093(Top 40%)
30K18.64 mi3.11 mi1930-1621847-1551847-1553162(Top 12%)2978(Top 20%)2978(Top 56%)
20M20.00 mi1.36 mi2054-1241969-1221969-1224018(Top 15%)3718(Top 24%)3718(Top 70%)
21M21.00 mi1.00 mi2147-932057-882057-884327(Top 16%)3953(Top 26%)3953(Top 75%)
35K21.75 mi0.75 mi2170-232079-222079-223188(Top 12%)2973(Top 20%)2973(Top 56%)
23M23.00 mi1.25 mi2223-532131-522131-523957(Top 15%)3638(Top 24%)3638(Top 69%)
24M24.00 mi1.00 mi2304-812206-752206-754806(Top 18%)4275(Top 28%)4275(Top 81%)
40K24.85 mi0.85 mi2338-342236-302236-304607(Top 17%)4058(Top 27%)4058(Top 77%)
25.2M25.20 mi0.35 mi2350-122249-132249-134235(Top 16%)3705(Top 24%)3705(Top 70%)
Finish26.22 mi1.02 mi2392-422284-352284-354335(Top 16%)3793(Top 25%)3793(Top 72%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21stories
+97ft-345ft

Overall

1791

Males

1715

M18-39

1715

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1617

Males

1544

M18-39

1544

10K→15K

6.2 - 9.3 mi

Top 7%
×3stories
+67ft-78ft

Overall

1791

Males

1715

M18-39

1715

15K→20K

9.3 - 12.4 mi

Top 7%
×5stories
+106ft-86ft

Overall

1823

Males

1746

M18-39

1746

20K→Half

12.4 - 13.1 mi

Top 7%
×2stories
+19ft-37ft

Overall

1913

Males

1838

M18-39

1838

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2182

Males

2093

M18-39

2093

25K→30K

15.5 - 18.6 mi

Top 12%
×9stories
+181ft-148ft

Overall

3162

Males

2978

M18-39

2978

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

4018

Males

3718

M18-39

3718

20M→21M

20.0 - 21.0 mi

Top 16%
×8stories
+106ft-24ft

Overall

4327

Males

3953

M18-39

3953

21M→35K

21.0 - 21.8 mi

Top 12%
×7stories
+17ft-86ft

Overall

3188

Males

2973

M18-39

2973

35K→23M

21.8 - 23.0 mi

Top 15%
×5stories
+23ft-63ft

Overall

3957

Males

3638

M18-39

3638

23M→24M

23.0 - 24.0 mi

Top 18%
×6stories
+12ft-82ft

Overall

4806

Males

4275

M18-39

4275

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4607

Males

4058

M18-39

4058

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4235

Males

3705

M18-39

3705

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2stories
+22ft-21ft

Overall

4335

Males

3793

M18-39

3793

Passing Analysis

Category:
Athletes Passed
349
Passed By
1056
Net Change
-707
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1685
5K → 10K11866+52#1685#1633
10K → 15K3882-44#1633#1677
15K → 20K4265-23#1677#1700
20K → Half815-7#1700#1707
Half → 25K1374-61#1707#1768
25K → 30K23185-162#1768#1930
30K → 20M14138-124#1930#2054
20M → 21M11104-93#2054#2147
21M → 35K1033-23#2147#2170
35K → 23M2275-53#2170#2223
23M → 24M1293-81#2223#2304
24M → 40K1347-34#2304#2338
40K → 25.2M921-12#2338#2350
25.2M → Finish1658-42#2350#2392
TOTALS3491056-707
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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