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BOSTON MARATHON 2023

William Cheng

Bib: 5393•M

UT

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
21:54
Rank: #6539
Start → 5K
21:54 | 7:03/mi
10K· 6.21 mi
43:03
Rank: #6024 (+515)
5K → 10K
21:09 | 6:48/mi
15K· 9.32 mi
1:04:15
Rank: #5793 (+231)
10K → 15K
21:12 | 6:49/mi
20K· 12.43 mi
1:25:39
Rank: #5652 (+141)
15K → 20K
21:24 | 6:53/mi
Half· 13.11 mi
1:30:20
Rank: #5653 (-1)
20K → Half
4:41 | 6:52/mi
25K· 15.53 mi
1:46:55
Rank: #5455 (+198)
Half → 25K
16:35 | 6:50/mi
30K· 18.64 mi
2:08:21
Rank: #5042 (+413)
25K → 30K
21:26 | 6:54/mi
20M
2:17:39
Rank: #4831 (+211)
30K → 20M
9:18 | 6:51/mi
21M
2:24:49
Rank: #4701 (+130)
20M → 21M
7:10 | 7:10/mi
35K· 21.75 mi
2:29:42
Rank: #4608 (+93)
21M → 35K
4:53 | 6:32/mi
23M
2:38:07
Rank: #4389 (+219)
35K → 23M
8:25 | 6:43/mi
24M
2:44:38
Rank: #4270 (+119)
23M → 24M
6:31 | 6:31/mi
40K· 24.85 mi
2:50:17
Rank: #4121 (+149)
24M → 40K
5:39 | 6:36/mi
25.2M
2:52:47
Rank: #4084 (+37)
40K → 25.2M
2:30 | 7:15/mi
Finish· 26.22 mi
2:59:23
Rank: #3983 (+101)
25.2M → Finish
6:36 | 6:29/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:30:20
Pace6:53 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:29:03
Pace6:48 /mi
📊Negative Split: 1.4% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:4221:547:0321:54
7:03
-
10K
6.21 mi10:45:5143:036:5621:09
6:48
-0:15
15K
9.32 mi11:07:031:04:156:5421:12
6:49
+0:01
20K
12.43 mi11:28:271:25:396:5421:24
6:53
+0:04
Half
13.11 mi11:33:081:30:206:534:41
6:52
-0:01
25K
15.53 mi11:49:431:46:556:5316:35
6:50
-0:02
30K
18.64 mi12:11:092:08:216:5321:26
6:54
+0:04
20M
20.00 mi12:20:272:17:396:539:18
6:51
-0:03
21M
21.00 mi12:27:372:24:496:547:10
7:10
+0:19
35K
21.75 mi12:32:302:29:426:534:53
6:32
-0:38
23M
23.00 mi12:40:552:38:076:528:25
6:43
+0:11
24M
24.00 mi12:47:262:44:386:526:31
6:31
-0:12
40K
24.85 mi12:53:052:50:176:515:39
6:36
+0:05
25.2M
25.20 mi12:55:352:52:476:512:30
7:15
+0:39
Finish
26.22 mi13:02:112:59:236:516:36
6:29
-0:46

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

6:29 /mi

Average Pace

6:51 /mi

Slowest Pace

7:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:49:43

95% of race

Time at Steady Pace

9:40

5% 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 mi10:24:4221:547:0321:54
7:03
#6539
10K
6.21 mi10:45:5143:036:5621:09
6:48
#6024
15K
9.32 mi11:07:031:04:156:5421:12
6:49
#5793
20K
12.43 mi11:28:271:25:396:5421:24
6:53
#5652
Half
13.11 mi11:33:081:30:206:534:41
6:52
#5653
25K
15.53 mi11:49:431:46:556:5316:35
6:50
#5455
30K
18.64 mi12:11:092:08:216:5321:26
6:54
#5042
20M
20.00 mi12:20:272:17:396:539:18
6:51
#4831
21M
21.00 mi12:27:372:24:496:547:10
7:10
#4701
35K
21.75 mi12:32:302:29:426:534:53
6:32
#4608
23M
23.00 mi12:40:552:38:076:528:25
6:43
#4389
24M
24.00 mi12:47:262:44:386:526:31
6:31
#4270
40K
24.85 mi12:53:052:50:176:515:39
6:36
#4121
25.2M
25.20 mi12:55:352:52:476:512:30
7:15
#4084
Finish
26.22 mi13:02:112:59:236:516:36
6:29
#3983
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi6539591259125320(Top 20%)4912(Top 32%)4912(Top 93%)
10K6.21 mi3.10 mi6024+5155506+4065506+4065356(Top 20%)4941(Top 33%)4941(Top 93%)
15K9.32 mi3.11 mi5793+2315315+1915315+1915320(Top 20%)4912(Top 32%)4912(Top 93%)
20K12.43 mi3.11 mi5652+1415205+1105205+1105225(Top 20%)4826(Top 32%)4826(Top 91%)
Half13.11 mi0.68 mi5653-15209-45209-45700(Top 21%)5232(Top 34%)5232(Top 99%)
25K15.53 mi2.42 mi5455+1985036+1735036+1734486(Top 17%)4178(Top 28%)4178(Top 79%)
30K18.64 mi3.11 mi5042+4134677+3594677+3593657(Top 14%)3436(Top 23%)3436(Top 65%)
20M20.00 mi1.36 mi4831+2114489+1884489+1883096(Top 12%)2910(Top 19%)2910(Top 55%)
21M21.00 mi1.00 mi4701+1304380+1094380+1092946(Top 11%)2763(Top 18%)2763(Top 52%)
35K21.75 mi0.75 mi4608+934292+884292+882609(Top 10%)2468(Top 16%)2468(Top 47%)
23M23.00 mi1.25 mi4389+2194100+1924100+1922288(Top 9%)2159(Top 14%)2159(Top 41%)
24M24.00 mi1.00 mi4270+1193995+1053995+1052187(Top 8%)2053(Top 14%)2053(Top 39%)
40K24.85 mi0.85 mi4121+1493857+1383857+1381966(Top 7%)1848(Top 12%)1848(Top 35%)
25.2M25.20 mi0.35 mi4084+373823+343823+342751(Top 10%)2537(Top 17%)2537(Top 48%)
Finish26.22 mi1.02 mi3983+1013727+963727+962383(Top 9%)2201(Top 15%)2201(Top 42%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21stories
+97ft-345ft

Overall

5320

Males

4912

M18-39

4912

5K→10K

3.1 - 6.2 mi

Top 20%
×5stories
+79ft-138ft

Overall

5356

Males

4941

M18-39

4941

10K→15K

6.2 - 9.3 mi

Top 20%
×3stories
+67ft-78ft

Overall

5320

Males

4912

M18-39

4912

15K→20K

9.3 - 12.4 mi

Top 20%
×5stories
+106ft-86ft

Overall

5225

Males

4826

M18-39

4826

20K→Half

12.4 - 13.1 mi

Top 21%
×2stories
+19ft-37ft

Overall

5700

Males

5232

M18-39

5232

Half→25K

13.1 - 15.5 mi

Top 17%
×4stories
+66ft-88ft

Overall

4486

Males

4178

M18-39

4178

25K→30K

15.5 - 18.6 mi

Top 14%
×9stories
+181ft-148ft

Overall

3657

Males

3436

M18-39

3436

30K→20M

18.6 - 20.0 mi

Top 12%
×5stories
+64ft-50ft

Overall

3096

Males

2910

M18-39

2910

20M→21M

20.0 - 21.0 mi

Top 11%
×8stories
+106ft-24ft

Overall

2946

Males

2763

M18-39

2763

21M→35K

21.0 - 21.8 mi

Top 10%
×7stories
+17ft-86ft

Overall

2609

Males

2468

M18-39

2468

35K→23M

21.8 - 23.0 mi

Top 9%
×5stories
+23ft-63ft

Overall

2288

Males

2159

M18-39

2159

23M→24M

23.0 - 24.0 mi

Top 8%
×6stories
+12ft-82ft

Overall

2187

Males

2053

M18-39

2053

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

1966

Males

1848

M18-39

1848

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2751

Males

2537

M18-39

2537

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2stories
+22ft-21ft

Overall

2383

Males

2201

M18-39

2201

Passing Analysis

Category:
Athletes Passed
2755
Passed By
199
Net Change
+2556
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6539
5K → 10K55237+515#6539#6024
10K → 15K27746+231#6024#5793
15K → 20K17837+141#5793#5652
20K → Half1819-1#5652#5653
Half → 25K2068+198#5653#5455
25K → 30K4174+413#5455#5042
30K → 20M2154+211#5042#4831
20M → 21M1399+130#4831#4701
21M → 35K963+93#4701#4608
35K → 23M2245+219#4608#4389
23M → 24M1256+119#4389#4270
24M → 40K1501+149#4270#4121
40K → 25.2M447+37#4121#4084
25.2M → Finish11413+101#4084#3983
TOTALS2755199+2556
📊

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