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BOSTON MARATHON 2023

Fan Zhou

Bib: 281•M

WA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 0.6%
Gender (Male)
#0 / 15176
Top 0.9%
Division (M18-39)
#0 / 5285
Top 2%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
17:07
Rank: #141
Start → 5K
17:07 | 5:31/mi
10K· 6.21 mi
34:26
Rank: #142 (-1)
5K → 10K
17:19 | 5:34/mi
15K· 9.32 mi
51:43
Rank: #155 (-13)
10K → 15K
17:17 | 5:34/mi
20K· 12.43 mi
1:09:05
Rank: #147 (+8)
15K → 20K
17:22 | 5:35/mi
Half· 13.11 mi
1:12:50
Rank: #147
20K → Half
3:45 | 5:30/mi
25K· 15.53 mi
1:26:28
Rank: #137 (+10)
Half → 25K
13:38 | 5:37/mi
30K· 18.64 mi
1:44:14
Rank: #132 (+5)
25K → 30K
17:46 | 5:43/mi
20M
1:52:06
Rank: #129 (+3)
30K → 20M
7:52 | 5:47/mi
21M
1:58:12
Rank: #128 (+1)
20M → 21M
6:06 | 6:06/mi
35K· 21.75 mi
2:02:32
Rank: #130 (-2)
21M → 35K
4:20 | 5:48/mi
23M
2:10:06
Rank: #128 (+2)
35K → 23M
7:34 | 6:03/mi
24M
2:16:06
Rank: #132 (-4)
23M → 24M
6:00 | 6:00/mi
40K· 24.85 mi
2:21:30
Rank: #139 (-7)
24M → 40K
5:24 | 6:19/mi
25.2M
2:23:51
Rank: #144 (-5)
40K → 25.2M
2:21 | 6:49/mi
Finish· 26.22 mi
2:30:22
Rank: #154 (-10)
25.2M → Finish
6:31 | 6:24/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:12:50
Pace5:33 /mi
2nd Half
Distance13.11 mi
Time1:17:32
Pace5:55 /mi
📊Positive Split: 6.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:17:1217:075:3117:07
5:31
-
10K
6.21 mi10:34:3134:265:3217:19
5:34
+0:03
15K
9.32 mi10:51:4851:435:3317:17
5:34
0:00
20K
12.43 mi11:09:101:09:055:3417:22
5:35
+0:01
Half
13.11 mi11:12:551:12:505:333:45
5:30
-0:05
25K
15.53 mi11:26:331:26:285:3413:38
5:37
+0:07
30K
18.64 mi11:44:191:44:145:3517:46
5:43
+0:06
20M
20.00 mi11:52:111:52:065:367:52
5:47
+0:04
21M
21.00 mi11:58:171:58:125:386:06
6:06
+0:19
35K
21.75 mi12:02:372:02:325:384:20
5:48
-0:18
23M
23.00 mi12:10:112:10:065:397:34
6:03
+0:15
24M
24.00 mi12:16:112:16:065:406:00
6:00
-0:03
40K
24.85 mi12:21:352:21:305:425:24
6:19
+0:19
25.2M
25.20 mi12:23:562:23:515:432:21
6:49
+0:30
Finish
26.22 mi12:30:272:30:225:446:31
6:24
-0:25

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

5:30 /mi

Average Pace

5:44 /mi

Slowest Pace

6:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:12:50

48% of race

Time at Steady Pace

43:36

29% of race

Time at Slower Pace

33:56

23% of race

Average Pace: 5:44 /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 mi10:17:1217:075:3117:07
5:31
#141
10K
6.21 mi10:34:3134:265:3217:19
5:34
#142
15K
9.32 mi10:51:4851:435:3317:17
5:34
#155
20K
12.43 mi11:09:101:09:055:3417:22
5:35
#147
Half
13.11 mi11:12:551:12:505:333:45
5:30
#147
25K
15.53 mi11:26:331:26:285:3413:38
5:37
#137
30K
18.64 mi11:44:191:44:145:3517:46
5:43
#132
20M
20.00 mi11:52:111:52:065:367:52
5:47
#129
21M
21.00 mi11:58:171:58:125:386:06
6:06
#128
35K
21.75 mi12:02:372:02:325:384:20
5:48
#130
23M
23.00 mi12:10:112:10:065:397:34
6:03
#128
24M
24.00 mi12:16:112:16:065:406:00
6:00
#132
40K
24.85 mi12:21:352:21:305:425:24
6:19
#139
25.2M
25.20 mi12:23:562:23:515:432:21
6:49
#144
Finish
26.22 mi12:30:272:30:225:446:31
6:24
#154
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi141141141143(Top 0.5%)118(Top 0.8%)118(Top 2%)
10K6.21 mi3.10 mi142-1142-1142-1185(Top 0.7%)158(Top 1%)158(Top 3%)
15K9.32 mi3.11 mi155-13133+9133+9143(Top 0.5%)118(Top 0.8%)118(Top 2%)
20K12.43 mi3.11 mi147+8128+5128+5137(Top 0.5%)117(Top 0.8%)117(Top 2%)
Half13.11 mi0.68 mi147128128128(Top 0.5%)110(Top 0.7%)110(Top 2%)
25K15.53 mi2.42 mi137+10119+9119+9127(Top 0.5%)108(Top 0.7%)108(Top 2%)
30K18.64 mi3.11 mi132+5114+5114+5116(Top 0.4%)97(Top 0.6%)97(Top 2%)
20M20.00 mi1.36 mi129+3110+4110+4151(Top 0.6%)129(Top 0.9%)129(Top 2%)
21M21.00 mi1.00 mi128+1109+1109+1156(Top 0.6%)136(Top 0.9%)136(Top 3%)
35K21.75 mi0.75 mi130-2111-2111-2342(Top 1%)313(Top 2%)313(Top 6%)
23M23.00 mi1.25 mi128+2108+3108+3349(Top 1%)323(Top 2%)323(Top 6%)
24M24.00 mi1.00 mi132-4112-4112-4530(Top 2%)500(Top 3%)500(Top 9%)
40K24.85 mi0.85 mi139-7119-7119-7919(Top 3%)868(Top 6%)868(Top 16%)
25.2M25.20 mi0.35 mi144-5124-5124-51130(Top 4%)1069(Top 7%)1069(Top 20%)
Finish26.22 mi1.02 mi154-10133-9133-91970(Top 7%)1835(Top 12%)1835(Top 35%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 0.5%
×21stories
+97ft-345ft

Overall

143

Males

118

M18-39

118

5K→10K

3.1 - 6.2 mi

Top 0.7%
×5stories
+79ft-138ft

Overall

185

Males

158

M18-39

158

10K→15K

6.2 - 9.3 mi

Top 0.5%
×3stories
+67ft-78ft

Overall

143

Males

118

M18-39

118

15K→20K

9.3 - 12.4 mi

Top 0.5%
×5stories
+106ft-86ft

Overall

137

Males

117

M18-39

117

20K→Half

12.4 - 13.1 mi

Top 0.5%
×2stories
+19ft-37ft

Overall

128

Males

110

M18-39

110

Half→25K

13.1 - 15.5 mi

Top 0.5%
×4stories
+66ft-88ft

Overall

127

Males

108

M18-39

108

25K→30K

15.5 - 18.6 mi

Top 0.4%
×9stories
+181ft-148ft

Overall

116

Males

97

M18-39

97

30K→20M

18.6 - 20.0 mi

Top 0.6%
×5stories
+64ft-50ft

Overall

151

Males

129

M18-39

129

20M→21M

20.0 - 21.0 mi

Top 0.6%
×8stories
+106ft-24ft

Overall

156

Males

136

M18-39

136

21M→35K

21.0 - 21.8 mi

Top 1%
×7stories
+17ft-86ft

Overall

342

Males

313

M18-39

313

35K→23M

21.8 - 23.0 mi

Top 1%
×5stories
+23ft-63ft

Overall

349

Males

323

M18-39

323

23M→24M

23.0 - 24.0 mi

Top 2%
×6stories
+12ft-82ft

Overall

530

Males

500

M18-39

500

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

919

Males

868

M18-39

868

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1130

Males

1069

M18-39

1069

25.2M→Finish

25.2 - 26.2 mi

Top 7%
×2stories
+22ft-21ft

Overall

1970

Males

1835

M18-39

1835

Passing Analysis

Category:
Athletes Passed
53
Passed By
66
Net Change
-13
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#141
5K → 10K34-1#141#142
10K → 15K1225-13#142#155
15K → 20K80+8#155#147
20K → Half000#147#147
Half → 25K111+10#147#137
25K → 30K50+5#137#132
30K → 20M63+3#132#129
20M → 21M21+1#129#128
21M → 35K02-2#128#130
35K → 23M42+2#130#128
23M → 24M15-4#128#132
24M → 40K18-7#132#139
40K → 25.2M05-5#139#144
25.2M → Finish010-10#144#154
TOTALS5366-13
📊

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