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BOSTON MARATHON 2023

Chen Yuen Cheng

NY

Bib: 12143 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 29%
Gender (Male)
#0 / 15176
Top 43%
Masters (Masters Men)
#0 / 9891
Top 30%
Division (M50-54)
#0 / 2052
Top 25%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:40/mi
23:48
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:12/mi
46:11
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:10/mi
1:08:28
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:15/mi
1:30:59
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:04/mi
1:35:48
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:27/mi
1:53:51
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:33/mi
2:17:17
↑ 181↓ 1480.2%
138 ft elev
20M
7:49/mi
2:27:55
↑ 64↓ 500.2%
148 ft elev
21M
7:49/mi
2:35:44
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:29/mi
2:41:20
↑ 17↓ 861.7%
156 ft elev
23M
7:45/mi
2:51:02
↑ 23↓ 630.6%
116 ft elev
24M
7:38/mi
2:58:40
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:28/mi
3:05:03
↓ 200.3%
20 ft elev
25.2M
7:53/mi
3:07:46
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
6:57/mi
3:14:51
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:48
Pace7:18 /mi
2nd Half
Distance13.11 mi
Time1:39:03
Pace7:33 /mi
📊Positive Split: 3.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:5623:487:4023:48
7:40
-
10K
6.21 mi11:14:1946:117:2622:23
7:12
-0:28
15K
9.32 mi11:36:361:08:287:2122:17
7:10
-0:02
20K
12.43 mi11:59:071:30:597:1922:31
7:15
+0:05
Half
13.11 mi12:03:561:35:487:184:49
7:04
-0:11
25K
15.53 mi12:21:591:53:517:2018:03
7:27
+0:23
30K
18.64 mi12:45:252:17:177:2223:26
7:33
+0:06
20M
20.00 mi12:56:032:27:557:2410:38
7:49
+0:16
21M
21.00 mi13:03:522:35:447:257:49
7:49
0:00
35K
21.75 mi13:09:282:41:207:255:36
7:29
-0:20
23M
23.00 mi13:19:102:51:027:269:42
7:45
+0:16
24M
24.00 mi13:26:482:58:407:277:38
7:38
-0:07
40K
24.85 mi13:33:113:05:037:276:23
7:28
-0:10
25.2M
25.20 mi13:35:543:07:467:272:43
7:53
+0:25
Finish
26.22 mi13:42:593:14:517:267:05
6:57
-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

6:57 /mi

Average Pace

7:26 /mi

Slowest Pace

7:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:20:11

72% of race

Time at Steady Pace

54:40

28% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:26 /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 mi10:51:5623:487:4023:48
7:40
#11089
10K
6.21 mi11:14:1946:117:2622:23
7:12
#9429
15K
9.32 mi11:36:361:08:287:2122:17
7:10
#8802
20K
12.43 mi11:59:071:30:597:1922:31
7:15
#8401
Half
13.11 mi12:03:561:35:487:184:49
7:04
#8311
25K
15.53 mi12:21:591:53:517:2018:03
7:27
#8291
30K
18.64 mi12:45:252:17:177:2223:26
7:33
#8111
20M
20.00 mi12:56:032:27:557:2410:38
7:49
#8141
21M
21.00 mi13:03:522:35:447:257:49
7:49
#8000
35K
21.75 mi13:09:282:41:207:255:36
7:29
#7995
23M
23.00 mi13:19:102:51:027:269:42
7:45
#7962
24M
24.00 mi13:26:482:58:407:277:38
7:38
#7973
40K
24.85 mi13:33:113:05:037:276:23
7:28
#7892
25.2M
25.20 mi13:35:543:07:467:272:43
7:53
#7851
Finish
26.22 mi13:42:593:14:517:267:05
6:57
#7694
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi11089869386937604(Top 29%)6665(Top 44%)6665(Top 325%)
10K6.21 mi3.10 mi9429+16607833+8607833+8608120(Top 31%)7027(Top 46%)7027(Top 342%)
15K9.32 mi3.11 mi8802+6277439+3947439+3947604(Top 29%)6665(Top 44%)6665(Top 325%)
20K12.43 mi3.11 mi8401+4017193+2467193+2467406(Top 28%)6497(Top 43%)6497(Top 317%)
Half13.11 mi0.68 mi8311+907139+547139+546920(Top 26%)6177(Top 41%)6177(Top 301%)
25K15.53 mi2.42 mi8291+207095+447095+448347(Top 31%)7026(Top 46%)7026(Top 342%)
30K18.64 mi3.11 mi8111+1806942+1536942+1537516(Top 28%)6397(Top 42%)6397(Top 312%)
20M20.00 mi1.36 mi8141-306944-26944-29013(Top 34%)7188(Top 47%)7188(Top 350%)
21M21.00 mi1.00 mi8000+1416842+1026842+1026301(Top 24%)5406(Top 36%)5406(Top 263%)
35K21.75 mi0.75 mi7995+56823+196823+198403(Top 32%)6734(Top 44%)6734(Top 328%)
23M23.00 mi1.25 mi7962+336779+446779+448018(Top 30%)6417(Top 42%)6417(Top 313%)
24M24.00 mi1.00 mi7973-116768+116768+118594(Top 32%)6661(Top 44%)6661(Top 325%)
40K24.85 mi0.85 mi7892+816700+686700+686490(Top 24%)5336(Top 35%)5336(Top 260%)
25.2M25.20 mi0.35 mi7851+416668+326668+325819(Top 22%)4839(Top 32%)4839(Top 236%)
Finish26.22 mi1.02 mi7694+1576547+1216547+1214931(Top 19%)4228(Top 28%)4228(Top 206%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21story building
+97ft-345ft

Overall

7604

Males

6665

M50-54

6665

5K→10K

3.1 - 6.2 mi

Top 31%
×5story building
+79ft-138ft

Overall

8120

Males

7027

M50-54

7027

10K→15K

6.2 - 9.3 mi

Top 29%
×3story building
+67ft-78ft

Overall

7604

Males

6665

M50-54

6665

15K→20K

9.3 - 12.4 mi

Top 28%
×5story building
+106ft-86ft

Overall

7406

Males

6497

M50-54

6497

20K→Half

12.4 - 13.1 mi

Top 26%
×2story building
+19ft-37ft

Overall

6920

Males

6177

M50-54

6177

Half→25K

13.1 - 15.5 mi

Top 31%
×4story building
+66ft-88ft

Overall

8347

Males

7026

M50-54

7026

25K→30K

15.5 - 18.6 mi

Top 28%
×9story building
+181ft-148ft

Overall

7516

Males

6397

M50-54

6397

30K→20M

18.6 - 20.0 mi

Top 34%
×5story building
+64ft-50ft

Overall

9013

Males

7188

M50-54

7188

20M→21M

20.0 - 21.0 mi

Top 24%
×8story building
+106ft-24ft

Overall

6301

Males

5406

M50-54

5406

21M→35K

21.0 - 21.8 mi

Top 32%
×7story building
+17ft-86ft

Overall

8403

Males

6734

M50-54

6734

35K→23M

21.8 - 23.0 mi

Top 30%
×5story building
+23ft-63ft

Overall

8018

Males

6417

M50-54

6417

23M→24M

23.0 - 24.0 mi

Top 32%
×6story building
+12ft-82ft

Overall

8594

Males

6661

M50-54

6661

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6490

Males

5336

M50-54

5336

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

5819

Males

4839

M50-54

4839

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2story building
+22ft-21ft

Overall

4931

Males

4228

M50-54

4228

Passing Analysis

Category:
Athletes Passed
3895*
Passed By
500
Net Change
+3395
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11089
5K → 10K1672*12+1660#11089#9429
10K → 15K6336+627#9429#8802
15K → 20K4109+401#8802#8401
20K → Half900+90#8401#8311
Half → 25K123103+20#8311#8291
25K → 30K22444+180#8291#8111
30K → 20M72102-30#8111#8141
20M → 21M15514+141#8141#8000
21M → 35K4641+5#8000#7995
35K → 23M9865+33#7995#7962
23M → 24M6273-11#7962#7973
24M → 40K9918+81#7973#7892
40K → 25.2M454+41#7892#7851
25.2M → Finish1669+157#7851#7694
TOTALS3895*500+3395

* 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