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BOSTON MARATHON 2023

Weiguo Chen

Bib: 12047•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 37%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 41%
Division (M50-54)
#0 / 2052
Top 41%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:39/mi
23:47
↑ 97↓ 3451.5%
10K· 6.21 mi
7:21/mi
46:37
↑ 79↓ 1380.4%
15K· 9.32 mi
7:23/mi
1:09:34
↑ 67↓ 78
20K· 12.43 mi
7:30/mi
1:32:53
↑ 106↓ 860.1%
Half· 13.11 mi
7:27/mi
1:37:58
↑ 19↓ 370.5%
25K· 15.53 mi
7:35/mi
1:56:22
↑ 66↓ 880.2%
30K· 18.64 mi
7:55/mi
2:20:59
↑ 181↓ 1480.2%
20M
8:03/mi
2:31:56
↑ 64↓ 500.2%
21M
8:44/mi
2:40:40
↑ 106↓ 241.6%
35K· 21.75 mi
7:55/mi
2:46:35
↑ 17↓ 861.7%
23M
8:16/mi
2:56:56
↑ 23↓ 630.6%
24M
7:47/mi
3:04:43
↓ 821.3%
40K· 24.85 mi
7:58/mi
3:11:32
↓ 200.3%
25.2M
8:54/mi
3:14:36
↑ 13↓ 160.2%
Finish· 26.22 mi
7:58/mi
3:22:43
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:58
Pace7:28 /mi
2nd Half
Distance13.11 mi
Time1:44:45
Pace7:59 /mi
📊Positive Split: 6.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:5523:477:3923:47
7:39
-
10K
6.21 mi11:14:4546:377:3022:50
7:21
-0:18
15K
9.32 mi11:37:421:09:347:2822:57
7:23
+0:02
20K
12.43 mi12:01:011:32:537:2823:19
7:30
+0:07
Half
13.11 mi12:06:061:37:587:285:05
7:27
-0:03
25K
15.53 mi12:24:301:56:227:2918:24
7:35
+0:08
30K
18.64 mi12:49:072:20:597:3424:37
7:55
+0:20
20M
20.00 mi13:00:042:31:567:3610:57
8:03
+0:08
21M
21.00 mi13:08:482:40:407:398:44
8:44
+0:41
35K
21.75 mi13:14:432:46:357:405:55
7:55
-0:49
23M
23.00 mi13:25:042:56:567:4210:21
8:16
+0:21
24M
24.00 mi13:32:513:04:437:427:47
7:47
-0:29
40K
24.85 mi13:39:403:11:327:426:49
7:58
+0:11
25.2M
25.20 mi13:42:443:14:367:433:04
8:54
+0:56
Finish
26.22 mi13:50:513:22:437:448:07
7:58
-0:56

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

7:21 /mi

Average Pace

7:44 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:22

57% of race

Time at Steady Pace

1:04:12

32% of race

Time at Slower Pace

22:09

11% of race

Average Pace: 7:44 /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 mi10:51:5523:477:3923:47
7:39
#11055
10K
6.21 mi11:14:4546:377:3022:50
7:21
#10039
15K
9.32 mi11:37:421:09:347:2822:57
7:23
#9714
20K
12.43 mi12:01:011:32:537:2823:19
7:30
#9603
Half
13.11 mi12:06:061:37:587:285:05
7:27
#9609
25K
15.53 mi12:24:301:56:227:2918:24
7:35
#9563
30K
18.64 mi12:49:072:20:597:3424:37
7:55
#9685
20M
20.00 mi13:00:042:31:567:3610:57
8:03
#9710
21M
21.00 mi13:08:482:40:407:398:44
8:44
#9809
35K
21.75 mi13:14:432:46:357:405:55
7:55
#9873
23M
23.00 mi13:25:042:56:567:4210:21
8:16
#9946
24M
24.00 mi13:32:513:04:437:427:47
7:47
#9905
40K
24.85 mi13:39:403:11:327:426:49
7:58
#9883
25.2M
25.20 mi13:42:443:14:367:433:04
8:54
#9899
Finish
26.22 mi13:50:513:22:437:448:07
7:58
#9961
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi11055868286829221(Top 35%)7682(Top 51%)7682(Top 374%)
10K6.21 mi3.10 mi10039+10168169+5138169+5139222(Top 35%)7708(Top 51%)7708(Top 376%)
15K9.32 mi3.11 mi9714+3257987+1827987+1829221(Top 35%)7682(Top 51%)7682(Top 374%)
20K12.43 mi3.11 mi9603+1117920+677920+679342(Top 35%)7712(Top 51%)7712(Top 376%)
Half13.11 mi0.68 mi9609-67929-97929-99785(Top 37%)7978(Top 53%)7978(Top 389%)
25K15.53 mi2.42 mi9563+467878+517878+519457(Top 36%)7689(Top 51%)7689(Top 375%)
30K18.64 mi3.11 mi9685-1227916-387916-3810305(Top 39%)7983(Top 53%)7983(Top 389%)
20M20.00 mi1.36 mi9710-257900+167900+1610670(Top 40%)8081(Top 53%)8081(Top 394%)
21M21.00 mi1.00 mi9809-997940-407940-4011836(Top 44%)8497(Top 56%)8497(Top 414%)
35K21.75 mi0.75 mi9873-647956-167956-1611413(Top 43%)8303(Top 55%)8303(Top 405%)
23M23.00 mi1.25 mi9946-737967-117967-1111608(Top 44%)8282(Top 55%)8282(Top 404%)
24M24.00 mi1.00 mi9905+417906+617906+619636(Top 36%)7215(Top 48%)7215(Top 352%)
40K24.85 mi0.85 mi9883+227862+447862+449848(Top 37%)7264(Top 48%)7264(Top 354%)
25.2M25.20 mi0.35 mi9899-167860+27860+211805(Top 44%)8148(Top 54%)8148(Top 397%)
Finish26.22 mi1.02 mi9961-627871-117871-1111824(Top 44%)8186(Top 54%)8186(Top 399%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21story building
+97ft-345ft

Overall

9221

Males

7682

M50-54

7682

5K→10K

3.1 - 6.2 mi

Top 35%
×5story building
+79ft-138ft

Overall

9222

Males

7708

M50-54

7708

10K→15K

6.2 - 9.3 mi

Top 35%
×3story building
+67ft-78ft

Overall

9221

Males

7682

M50-54

7682

15K→20K

9.3 - 12.4 mi

Top 35%
×5story building
+106ft-86ft

Overall

9342

Males

7712

M50-54

7712

20K→Half

12.4 - 13.1 mi

Top 37%
×2story building
+19ft-37ft

Overall

9785

Males

7978

M50-54

7978

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

9457

Males

7689

M50-54

7689

25K→30K

15.5 - 18.6 mi

Top 39%
×9story building
+181ft-148ft

Overall

10305

Males

7983

M50-54

7983

30K→20M

18.6 - 20.0 mi

Top 40%
×5story building
+64ft-50ft

Overall

10670

Males

8081

M50-54

8081

20M→21M

20.0 - 21.0 mi

Top 44%
×8story building
+106ft-24ft

Overall

11836

Males

8497

M50-54

8497

21M→35K

21.0 - 21.8 mi

Top 43%
×7story building
+17ft-86ft

Overall

11413

Males

8303

M50-54

8303

35K→23M

21.8 - 23.0 mi

Top 44%
×5story building
+23ft-63ft

Overall

11608

Males

8282

M50-54

8282

23M→24M

23.0 - 24.0 mi

Top 36%
×6story building
+12ft-82ft

Overall

9636

Males

7215

M50-54

7215

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

9848

Males

7264

M50-54

7264

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

11805

Males

8148

M50-54

8148

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2story building
+22ft-21ft

Overall

11824

Males

8186

M50-54

8186

Passing Analysis

Category:
Athletes Passed
2387*
Passed By
1292
Net Change
+1094
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11055
5K → 10K1046*30+1016#11055#10039
10K → 15K384*59+325#10039#9714
15K → 20K20291+111#9714#9603
20K → Half2228-6#9603#9609
Half → 25K14498+46#9609#9563
25K → 30K132*254-122#9563#9685
30K → 20M82107-25#9685#9710
20M → 21M47146-99#9710#9809
21M → 35K2589-64#9809#9873
35K → 23M57130-73#9873#9946
23M → 24M9452+41#9946#9905
24M → 40K7755+22#9905#9883
40K → 25.2M2238-16#9883#9899
25.2M → Finish53*115-62#9899#9961
TOTALS2387*1292+1094

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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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