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BOSTON MARATHON 2023

Henry Simon

Bib: 4822•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 5%
Gender (Male)
#0 / 15176
Top 9%
Division (M18-39)
#0 / 5285
Top 21%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:41
Rank: #1564
Start → 5K
19:41 | 6:20/mi
10K· 6.21 mi
39:21
Rank: #1707 (-143)
5K → 10K
19:40 | 6:20/mi
15K· 9.32 mi
58:56
Rank: #1681 (+26)
10K → 15K
19:35 | 6:18/mi
20K· 12.43 mi
1:18:35
Rank: #1627 (+54)
15K → 20K
19:39 | 6:19/mi
Half· 13.11 mi
1:22:51
Rank: #1620 (+7)
20K → Half
4:16 | 6:15/mi
25K· 15.53 mi
1:38:08
Rank: #1557 (+63)
Half → 25K
15:17 | 6:18/mi
30K· 18.64 mi
1:58:14
Rank: #1509 (+48)
25K → 30K
20:06 | 6:28/mi
20M
2:06:59
Rank: #1485 (+24)
30K → 20M
8:45 | 6:26/mi
21M
2:13:43
Rank: #1448 (+37)
20M → 21M
6:44 | 6:44/mi
35K· 21.75 mi
2:18:30
Rank: #1458 (-10)
21M → 35K
4:47 | 6:24/mi
23M
2:26:29
Rank: #1401 (+57)
35K → 23M
7:59 | 6:23/mi
24M
2:32:38
Rank: #1354 (+47)
23M → 24M
6:09 | 6:09/mi
40K· 24.85 mi
2:38:05
Rank: #1330 (+24)
24M → 40K
5:27 | 6:22/mi
25.2M
2:40:33
Rank: #1332 (-2)
40K → 25.2M
2:28 | 7:09/mi
Finish· 26.22 mi
2:47:23
Rank: #1386 (-54)
25.2M → Finish
6:50 | 6:42/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:51
Pace6:19 /mi
2nd Half
Distance13.11 mi
Time1:24:32
Pace6:27 /mi
📊Positive Split: 2.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:1819:416:2019:41
6:20
-
10K
6.21 mi10:40:5839:216:2019:40
6:20
0:00
15K
9.32 mi11:00:3358:566:1919:35
6:18
-0:02
20K
12.43 mi11:20:121:18:356:1919:39
6:19
+0:01
Half
13.11 mi11:24:281:22:516:194:16
6:15
-0:04
25K
15.53 mi11:39:451:38:086:1915:17
6:18
+0:03
30K
18.64 mi11:59:511:58:146:2120:06
6:28
+0:10
20M
20.00 mi12:08:362:06:596:218:45
6:26
-0:02
21M
21.00 mi12:15:202:13:436:226:44
6:44
+0:18
35K
21.75 mi12:20:072:18:306:224:47
6:24
-0:20
23M
23.00 mi12:28:062:26:296:227:59
6:23
-0:01
24M
24.00 mi12:34:152:32:386:226:09
6:09
-0:14
40K
24.85 mi12:39:422:38:056:225:27
6:22
+0:13
25.2M
25.20 mi12:42:102:40:336:222:28
7:09
+0:47
Finish
26.22 mi12:49:002:47:236:236:50
6:42
-0:27

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

6:09 /mi

Average Pace

6:23 /mi

Slowest Pace

7:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:44:55

99% of race

Time at Steady Pace

2:28

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:23 /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 mi10:21:1819:416:2019:41
6:20
#1564
10K
6.21 mi10:40:5839:216:2019:40
6:20
#1707
15K
9.32 mi11:00:3358:566:1919:35
6:18
#1681
20K
12.43 mi11:20:121:18:356:1919:39
6:19
#1627
Half
13.11 mi11:24:281:22:516:194:16
6:15
#1620
25K
15.53 mi11:39:451:38:086:1915:17
6:18
#1557
30K
18.64 mi11:59:511:58:146:2120:06
6:28
#1509
20M
20.00 mi12:08:362:06:596:218:45
6:26
#1485
21M
21.00 mi12:15:202:13:436:226:44
6:44
#1448
35K
21.75 mi12:20:072:18:306:224:47
6:24
#1458
23M
23.00 mi12:28:062:26:296:227:59
6:23
#1401
24M
24.00 mi12:34:152:32:386:226:09
6:09
#1354
40K
24.85 mi12:39:422:38:056:225:27
6:22
#1330
25.2M
25.20 mi12:42:102:40:336:222:28
7:09
#1332
Finish
26.22 mi12:49:002:47:236:236:50
6:42
#1386
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1564148914891661(Top 6%)1587(Top 10%)1587(Top 30%)
10K6.21 mi3.10 mi1707-1431630-1411630-1411888(Top 7%)1807(Top 12%)1807(Top 34%)
15K9.32 mi3.11 mi1681+261607+231607+231661(Top 6%)1587(Top 10%)1587(Top 30%)
20K12.43 mi3.11 mi1627+541556+511556+511496(Top 6%)1430(Top 9%)1430(Top 27%)
Half13.11 mi0.68 mi1620+71549+71549+71585(Top 6%)1520(Top 10%)1520(Top 29%)
25K15.53 mi2.42 mi1557+631489+601489+601351(Top 5%)1291(Top 9%)1291(Top 24%)
30K18.64 mi3.11 mi1509+481442+471442+471447(Top 5%)1383(Top 9%)1383(Top 26%)
20M20.00 mi1.36 mi1485+241418+241418+241245(Top 5%)1186(Top 8%)1186(Top 22%)
21M21.00 mi1.00 mi1448+371384+341384+341203(Top 5%)1145(Top 8%)1145(Top 22%)
35K21.75 mi0.75 mi1458-101393-91393-91918(Top 7%)1822(Top 12%)1822(Top 34%)
23M23.00 mi1.25 mi1401+571337+561337+561036(Top 4%)983(Top 6%)983(Top 19%)
24M24.00 mi1.00 mi1354+471291+461291+46885(Top 3%)840(Top 6%)840(Top 16%)
40K24.85 mi0.85 mi1330+241268+231268+231126(Top 4%)1065(Top 7%)1065(Top 20%)
25.2M25.20 mi0.35 mi1332-2126812682241(Top 8%)2074(Top 14%)2074(Top 39%)
Finish26.22 mi1.02 mi1386-541320-521320-523507(Top 13%)3132(Top 21%)3132(Top 59%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21stories
+97ft-345ft

Overall

1661

Males

1587

M18-39

1587

5K→10K

3.1 - 6.2 mi

Top 7%
×5stories
+79ft-138ft

Overall

1888

Males

1807

M18-39

1807

10K→15K

6.2 - 9.3 mi

Top 6%
×3stories
+67ft-78ft

Overall

1661

Males

1587

M18-39

1587

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1496

Males

1430

M18-39

1430

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1585

Males

1520

M18-39

1520

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1351

Males

1291

M18-39

1291

25K→30K

15.5 - 18.6 mi

Top 5%
×9stories
+181ft-148ft

Overall

1447

Males

1383

M18-39

1383

30K→20M

18.6 - 20.0 mi

Top 5%
×5stories
+64ft-50ft

Overall

1245

Males

1186

M18-39

1186

20M→21M

20.0 - 21.0 mi

Top 5%
×8stories
+106ft-24ft

Overall

1203

Males

1145

M18-39

1145

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

1918

Males

1822

M18-39

1822

35K→23M

21.8 - 23.0 mi

Top 4%
×5stories
+23ft-63ft

Overall

1036

Males

983

M18-39

983

23M→24M

23.0 - 24.0 mi

Top 3%
×6stories
+12ft-82ft

Overall

885

Males

840

M18-39

840

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1126

Males

1065

M18-39

1065

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

2241

Males

2074

M18-39

2074

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2stories
+22ft-21ft

Overall

3507

Males

3132

M18-39

3132

Passing Analysis

Category:
Athletes Passed
593
Passed By
415
Net Change
+178
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1564
5K → 10K40183-143#1564#1707
10K → 15K6943+26#1707#1681
15K → 20K7824+54#1681#1627
20K → Half1710+7#1627#1620
Half → 25K674+63#1620#1557
25K → 30K7224+48#1557#1509
30K → 20M3915+24#1509#1485
20M → 21M414+37#1485#1448
21M → 35K1121-10#1448#1458
35K → 23M625+57#1458#1401
23M → 24M514+47#1401#1354
24M → 40K317+24#1354#1330
40K → 25.2M911-2#1330#1332
25.2M → Finish660-54#1332#1386
TOTALS593415+178
📊

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