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BOSTON MARATHON 2023

Zhugang Liu

Bib: 7106•M

NC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 15%
Gender (Male)
#0 / 15176
Top 24%
Masters (Masters Men)
#0 / 9891
Top 11%
Division (M50-54)
#0 / 2052
Top 7%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:56
Rank: #4005
Start → 5K
20:56 | 6:44/mi
10K· 6.21 mi
41:41
Rank: #4066 (-61)
5K → 10K
20:45 | 6:41/mi
15K· 9.32 mi
1:02:38
Rank: #4210 (-144)
10K → 15K
20:57 | 6:45/mi
20K· 12.43 mi
1:23:45
Rank: #4243 (-33)
15K → 20K
21:07 | 6:48/mi
Half· 13.11 mi
1:28:21
Rank: #4261 (-18)
20K → Half
4:36 | 6:45/mi
25K· 15.53 mi
1:44:56
Rank: #4274 (-13)
Half → 25K
16:35 | 6:50/mi
30K· 18.64 mi
2:06:35
Rank: #4226 (+48)
25K → 30K
21:39 | 6:58/mi
20M
2:16:06
Rank: #4200 (+26)
30K → 20M
9:31 | 7:00/mi
21M
2:23:24
Rank: #4126 (+74)
20M → 21M
7:18 | 7:18/mi
35K· 21.75 mi
2:28:24
Rank: #4077 (+49)
21M → 35K
5:00 | 6:41/mi
23M
2:37:06
Rank: #4022 (+55)
35K → 23M
8:42 | 6:57/mi
24M
2:43:53
Rank: #3987 (+35)
23M → 24M
6:47 | 6:47/mi
40K· 24.85 mi
2:49:50
Rank: #3967 (+20)
24M → 40K
5:57 | 6:58/mi
25.2M
2:52:25
Rank: #3962 (+5)
40K → 25.2M
2:35 | 7:29/mi
Finish· 26.22 mi
2:59:17
Rank: #3953 (+9)
25.2M → Finish
6:52 | 6:44/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:21
Pace6:44 /mi
2nd Half
Distance13.11 mi
Time1:30:56
Pace6:56 /mi
📊Positive Split: 2.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:5820:566:4420:56
6:44
-
10K
6.21 mi10:45:4341:416:4220:45
6:41
-0:03
15K
9.32 mi11:06:401:02:386:4320:57
6:45
+0:04
20K
12.43 mi11:27:471:23:456:4421:07
6:48
+0:03
Half
13.11 mi11:32:231:28:216:444:36
6:45
-0:03
25K
15.53 mi11:48:581:44:566:4516:35
6:50
+0:05
30K
18.64 mi12:10:372:06:356:4721:39
6:58
+0:08
20M
20.00 mi12:20:082:16:066:489:31
7:00
+0:02
21M
21.00 mi12:27:262:23:246:507:18
7:18
+0:18
35K
21.75 mi12:32:262:28:246:495:00
6:41
-0:37
23M
23.00 mi12:41:082:37:066:508:42
6:57
+0:16
24M
24.00 mi12:47:552:43:536:506:47
6:47
-0:10
40K
24.85 mi12:53:522:49:506:505:57
6:58
+0:11
25.2M
25.20 mi12:56:272:52:256:512:35
7:29
+0:31
Finish
26.22 mi13:03:192:59:176:516:52
6:44
-0:45

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

6:41 /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

2:56:42

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 mi10:24:5820:566:4420:56
6:44
#4005
10K
6.21 mi10:45:4341:416:4220:45
6:41
#4066
15K
9.32 mi11:06:401:02:386:4320:57
6:45
#4210
20K
12.43 mi11:27:471:23:456:4421:07
6:48
#4243
Half
13.11 mi11:32:231:28:216:444:36
6:45
#4261
25K
15.53 mi11:48:581:44:566:4516:35
6:50
#4274
30K
18.64 mi12:10:372:06:356:4721:39
6:58
#4226
20M
20.00 mi12:20:082:16:066:489:31
7:00
#4200
21M
21.00 mi12:27:262:23:246:507:18
7:18
#4126
35K
21.75 mi12:32:262:28:246:495:00
6:41
#4077
23M
23.00 mi12:41:082:37:066:508:42
6:57
#4022
24M
24.00 mi12:47:552:43:536:506:47
6:47
#3987
40K
24.85 mi12:53:522:49:506:505:57
6:58
#3967
25.2M
25.20 mi12:56:272:52:256:512:35
7:29
#3962
Finish
26.22 mi13:03:192:59:176:516:52
6:44
#3953
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi4005375837584533(Top 17%)4232(Top 28%)4232(Top 206%)
10K6.21 mi3.10 mi4066-613822-643822-644148(Top 16%)3892(Top 26%)3892(Top 190%)
15K9.32 mi3.11 mi4210-1443947-1253947-1254533(Top 17%)4232(Top 28%)4232(Top 206%)
20K12.43 mi3.11 mi4243-333978-313978-314404(Top 17%)4110(Top 27%)4110(Top 200%)
Half13.11 mi0.68 mi4261-183990-123990-124691(Top 18%)4353(Top 29%)4353(Top 212%)
25K15.53 mi2.42 mi4274-134006-164006-164485(Top 17%)4177(Top 28%)4177(Top 204%)
30K18.64 mi3.11 mi4226+483967+393967+394132(Top 16%)3853(Top 25%)3853(Top 188%)
20M20.00 mi1.36 mi4200+263940+273940+274036(Top 15%)3736(Top 25%)3736(Top 182%)
21M21.00 mi1.00 mi4126+743869+713869+713608(Top 14%)3348(Top 22%)3348(Top 163%)
35K21.75 mi0.75 mi4077+493825+443825+443479(Top 13%)3231(Top 21%)3231(Top 157%)
23M23.00 mi1.25 mi4022+553770+553770+553519(Top 13%)3260(Top 21%)3260(Top 159%)
24M24.00 mi1.00 mi3987+353733+373733+373555(Top 13%)3266(Top 22%)3266(Top 159%)
40K24.85 mi0.85 mi3967+203714+193714+193621(Top 14%)3285(Top 22%)3285(Top 160%)
25.2M25.20 mi0.35 mi3962+53708+63708+63830(Top 14%)3420(Top 23%)3420(Top 167%)
Finish26.22 mi1.02 mi3953+93699+93699+93717(Top 14%)3309(Top 22%)3309(Top 161%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21stories
+97ft-345ft

Overall

4533

Males

4232

M50-54

4232

5K→10K

3.1 - 6.2 mi

Top 16%
×5stories
+79ft-138ft

Overall

4148

Males

3892

M50-54

3892

10K→15K

6.2 - 9.3 mi

Top 17%
×3stories
+67ft-78ft

Overall

4533

Males

4232

M50-54

4232

15K→20K

9.3 - 12.4 mi

Top 17%
×5stories
+106ft-86ft

Overall

4404

Males

4110

M50-54

4110

20K→Half

12.4 - 13.1 mi

Top 18%
×2stories
+19ft-37ft

Overall

4691

Males

4353

M50-54

4353

Half→25K

13.1 - 15.5 mi

Top 17%
×4stories
+66ft-88ft

Overall

4485

Males

4177

M50-54

4177

25K→30K

15.5 - 18.6 mi

Top 16%
×9stories
+181ft-148ft

Overall

4132

Males

3853

M50-54

3853

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

4036

Males

3736

M50-54

3736

20M→21M

20.0 - 21.0 mi

Top 14%
×8stories
+106ft-24ft

Overall

3608

Males

3348

M50-54

3348

21M→35K

21.0 - 21.8 mi

Top 13%
×7stories
+17ft-86ft

Overall

3479

Males

3231

M50-54

3231

35K→23M

21.8 - 23.0 mi

Top 13%
×5stories
+23ft-63ft

Overall

3519

Males

3260

M50-54

3260

23M→24M

23.0 - 24.0 mi

Top 13%
×6stories
+12ft-82ft

Overall

3555

Males

3266

M50-54

3266

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

3621

Males

3285

M50-54

3285

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3830

Males

3420

M50-54

3420

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2stories
+22ft-21ft

Overall

3717

Males

3309

M50-54

3309

Passing Analysis

Category:
Athletes Passed
1117
Passed By
1065
Net Change
+52
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4005
5K → 10K196257-61#4005#4066
10K → 15K73217-144#4066#4210
15K → 20K83116-33#4210#4243
20K → Half1533-18#4243#4261
Half → 25K87100-13#4261#4274
25K → 30K13890+48#4274#4226
30K → 20M7347+26#4226#4200
20M → 21M10228+74#4200#4126
21M → 35K589+49#4126#4077
35K → 23M9237+55#4077#4022
23M → 24M6631+35#4022#3987
24M → 40K5232+20#3987#3967
40K → 25.2M3025+5#3967#3962
25.2M → Finish5243+9#3962#3953
TOTALS11171065+52
📊

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