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BOSTON MARATHON 2023

Shenyan Yu

Bib: 12004•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 28%
Gender (Male)
#0 / 15176
Top 42%
Masters (Masters Men)
#0 / 9891
Top 29%
Division (M45-49)
#0 / 2252
Top 39%
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
7:26/mi
23:05
↑ 97↓ 3451.5%
10K· 6.21 mi
7:09/mi
45:19
↑ 79↓ 1380.4%
15K· 9.32 mi
7:12/mi
1:07:42
↑ 67↓ 78
20K· 12.43 mi
7:16/mi
1:30:18
↑ 106↓ 860.1%
Half· 13.11 mi
7:07/mi
1:35:09
↑ 19↓ 370.5%
25K· 15.53 mi
7:18/mi
1:52:52
↑ 66↓ 880.2%
30K· 18.64 mi
7:36/mi
2:16:30
↑ 181↓ 1480.2%
20M
7:33/mi
2:26:45
↑ 64↓ 500.2%
21M
8:00/mi
2:34:45
↑ 106↓ 241.6%
35K· 21.75 mi
7:22/mi
2:40:16
↑ 17↓ 861.7%
23M
7:45/mi
2:49:58
↑ 23↓ 630.6%
24M
7:22/mi
2:57:20
↓ 821.3%
40K· 24.85 mi
7:35/mi
3:03:49
↓ 200.3%
25.2M
8:16/mi
3:06:40
↑ 13↓ 160.2%
Finish· 26.22 mi
7:27/mi
3:14:16
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:09
Pace7:15 /mi
2nd Half
Distance13.11 mi
Time1:39:07
Pace7:34 /mi
📊Positive Split: 4.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:4823:057:2623:05
7:26
-
10K
6.21 mi11:13:0245:197:1822:14
7:09
-0:17
15K
9.32 mi11:35:251:07:427:1622:23
7:12
+0:03
20K
12.43 mi11:58:011:30:187:1622:36
7:16
+0:04
Half
13.11 mi12:02:521:35:097:154:51
7:07
-0:09
25K
15.53 mi12:20:351:52:527:1617:43
7:18
+0:11
30K
18.64 mi12:44:132:16:307:1923:38
7:36
+0:18
20M
20.00 mi12:54:282:26:457:2010:15
7:33
-0:03
21M
21.00 mi13:02:282:34:457:228:00
8:00
+0:27
35K
21.75 mi13:07:592:40:167:225:31
7:22
-0:38
23M
23.00 mi13:17:412:49:587:239:42
7:45
+0:23
24M
24.00 mi13:25:032:57:207:237:22
7:22
-0:23
40K
24.85 mi13:31:323:03:497:246:29
7:35
+0:13
25.2M
25.20 mi13:34:233:06:407:242:51
8:16
+0:41
Finish
26.22 mi13:41:593:14:167:257:36
7:27
-0:49

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

7:07 /mi

Average Pace

7:25 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:03:25

94% of race

Time at Steady Pace

10:51

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:25 /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 mi10:50:4823:057:2623:05
7:26
#9055
10K
6.21 mi11:13:0245:197:1822:14
7:09
#8389
15K
9.32 mi11:35:251:07:427:1622:23
7:12
#8187
20K
12.43 mi11:58:011:30:187:1622:36
7:16
#8008
Half
13.11 mi12:02:521:35:097:154:51
7:07
#7963
25K
15.53 mi12:20:351:52:527:1617:43
7:18
#7828
30K
18.64 mi12:44:132:16:307:1923:38
7:36
#7797
20M
20.00 mi12:54:282:26:457:2010:15
7:33
#7715
21M
21.00 mi13:02:282:34:457:228:00
8:00
#7651
35K
21.75 mi13:07:592:40:167:225:31
7:22
#7625
23M
23.00 mi13:17:412:49:587:239:42
7:45
#7614
24M
24.00 mi13:25:032:57:207:237:22
7:22
#7539
40K
24.85 mi13:31:323:03:497:246:29
7:35
#7509
25.2M
25.20 mi13:34:233:06:407:242:51
8:16
#7518
Finish
26.22 mi13:41:593:14:167:257:36
7:27
#7523
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi9055763176317821(Top 29%)6798(Top 45%)6798(Top 302%)
10K6.21 mi3.10 mi8389+6667203+4287203+4287808(Top 29%)6809(Top 45%)6809(Top 302%)
15K9.32 mi3.11 mi8187+2027071+1327071+1327821(Top 29%)6798(Top 45%)6798(Top 302%)
20K12.43 mi3.11 mi8008+1796940+1316940+1317591(Top 29%)6622(Top 44%)6622(Top 294%)
Half13.11 mi0.68 mi7963+456908+326908+327217(Top 27%)6386(Top 42%)6386(Top 284%)
25K15.53 mi2.42 mi7828+1356805+1036805+1037322(Top 28%)6366(Top 42%)6366(Top 283%)
30K18.64 mi3.11 mi7797+316742+636742+637974(Top 30%)6669(Top 44%)6669(Top 296%)
20M20.00 mi1.36 mi7715+826678+646678+647075(Top 27%)6027(Top 40%)6027(Top 268%)
21M21.00 mi1.00 mi7651+646614+646614+647330(Top 28%)6075(Top 40%)6075(Top 270%)
35K21.75 mi0.75 mi7625+266596+186596+187611(Top 29%)6253(Top 41%)6253(Top 278%)
23M23.00 mi1.25 mi7614+116566+306566+308016(Top 30%)6415(Top 42%)6415(Top 285%)
24M24.00 mi1.00 mi7539+756490+766490+766821(Top 26%)5610(Top 37%)5610(Top 249%)
40K24.85 mi0.85 mi7509+306447+436447+437194(Top 27%)5742(Top 38%)5742(Top 255%)
25.2M25.20 mi0.35 mi7518-96448-16448-17993(Top 30%)6153(Top 41%)6153(Top 273%)
Finish26.22 mi1.02 mi7523-56433+156433+158204(Top 31%)6277(Top 41%)6277(Top 279%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21story building
+97ft-345ft

Overall

7821

Males

6798

M45-49

6798

5K→10K

3.1 - 6.2 mi

Top 29%
×5story building
+79ft-138ft

Overall

7808

Males

6809

M45-49

6809

10K→15K

6.2 - 9.3 mi

Top 29%
×3story building
+67ft-78ft

Overall

7821

Males

6798

M45-49

6798

15K→20K

9.3 - 12.4 mi

Top 29%
×5story building
+106ft-86ft

Overall

7591

Males

6622

M45-49

6622

20K→Half

12.4 - 13.1 mi

Top 27%
×2story building
+19ft-37ft

Overall

7217

Males

6386

M45-49

6386

Half→25K

13.1 - 15.5 mi

Top 28%
×4story building
+66ft-88ft

Overall

7322

Males

6366

M45-49

6366

25K→30K

15.5 - 18.6 mi

Top 30%
×9story building
+181ft-148ft

Overall

7974

Males

6669

M45-49

6669

30K→20M

18.6 - 20.0 mi

Top 27%
×5story building
+64ft-50ft

Overall

7075

Males

6027

M45-49

6027

20M→21M

20.0 - 21.0 mi

Top 28%
×8story building
+106ft-24ft

Overall

7330

Males

6075

M45-49

6075

21M→35K

21.0 - 21.8 mi

Top 29%
×7story building
+17ft-86ft

Overall

7611

Males

6253

M45-49

6253

35K→23M

21.8 - 23.0 mi

Top 30%
×5story building
+23ft-63ft

Overall

8016

Males

6415

M45-49

6415

23M→24M

23.0 - 24.0 mi

Top 26%
×6story building
+12ft-82ft

Overall

6821

Males

5610

M45-49

5610

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7194

Males

5742

M45-49

5742

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

7993

Males

6153

M45-49

6153

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2story building
+22ft-21ft

Overall

8204

Males

6277

M45-49

6277

Passing Analysis

Category:
Athletes Passed
2148
Passed By
616
Net Change
+1532
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9055
5K → 10K71751+666#9055#8389
10K → 15K25351+202#8389#8187
15K → 20K21637+179#8187#8008
20K → Half472+45#8008#7963
Half → 25K16631+135#7963#7828
25K → 30K157126+31#7828#7797
30K → 20M10927+82#7797#7715
20M → 21M9329+64#7715#7651
21M → 35K5125+26#7651#7625
35K → 23M8170+11#7625#7614
23M → 24M10025+75#7614#7539
24M → 40K7848+30#7539#7509
40K → 25.2M1726-9#7509#7518
25.2M → Finish6368-5#7518#7523
TOTALS2148616+1532
📊

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