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BOSTON MARATHON 2023

Peter Yeh

CA

Bib: 12021 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M45-49)
#0 / 2252
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
7:49/mi
24:18
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:57/mi
49:00
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:55/mi
1:16:43
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:51/mi
1:44:13
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:53/mi
1:49:36
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:00/mi
2:09:01
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:48/mi
2:36:21
↑ 181↓ 1480.2%
138 ft elev
20M
8:27/mi
2:47:50
↑ 64↓ 500.2%
148 ft elev
21M
8:44/mi
2:56:34
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:59/mi
3:02:32
↑ 17↓ 861.7%
156 ft elev
23M
8:12/mi
3:12:48
↑ 23↓ 630.6%
116 ft elev
24M
8:21/mi
3:21:09
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:45/mi
3:28:38
↓ 200.3%
20 ft elev
25.2M
9:25/mi
3:31:53
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:45/mi
3:40:48
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:49:368:22 /mi⚡ faster
2nd Half
1:51:128:29 /mi+1.5%
Positive split — 1.5% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
24:187:493.11 mi24:18
7:49
-
10K
49:007:533.10 mi24:42
7:57
+0:08
15K
1:16:438:143.11 mi27:43
8:55
+0:58
20K
1:44:138:233.11 mi27:30
8:51
-0:04
Half(13.11 mi)
1:49:368:220.68 mi5:23
7:53
-0:58
25K
2:09:018:182.42 mi19:25
8:00
+0:07
30K
2:36:218:233.11 mi27:20
8:48
+0:48
20M
2:47:508:231.36 mi11:29
8:27
-0:21
21M
2:56:348:241.00 mi8:44
8:44
+0:17
35K
3:02:328:240.75 mi5:58
7:59
-0:45
23M
3:12:488:231.25 mi10:16
8:12
+0:13
24M
3:21:098:231.00 mi8:21
8:21
+0:09
40K
3:28:388:240.85 mi7:29
8:45
+0:24
25.2M
3:31:538:240.35 mi3:15
9:25
+0:40
Finish(26.22 mi)
3:40:488:261.02 mi8:55
8:45
-0:40
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

7:49 /mi

Average Pace

8:26 /mi

Slowest Pace

9:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

1:30:02

41% of race

Time at Steady Pace

19:50

9% of race

Time at Slower Pace

1:50:56

50% of race

Average Pace: 8:25 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi1255493499349201291235812358
10K3.10 mi13465-9119734-3859734-385144011008110081
15K3.11 mi16041-257610711-97710711-977201291235812358
20K3.11 mi16829-78810987-27610987-276189431186411864
Half(13.11 mi)0.68 mi16693+13610932+5510932+551348496899689
25K2.42 mi16067+62610669+26310669+2631281392729272
30K3.11 mi16065+210630+3910630+39160341048910489
20M1.36 mi15841+22410514+11610514+1161332992879287
21M1.00 mi15574+26710393+12110393+1211187285338533
35K0.75 mi15445+12910327+6610327+661193485458545
23M1.25 mi15177+26810208+11910208+1191118980728072
24M1.00 mi15092+8510164+4410164+441352390999099
40K0.85 mi15072+2010134+3010134+301479895979597
25.2M0.35 mi15055+1710118+1610118+161476495689568
Finish(26.22 mi)1.02 mi15139-8410127-910127-9167381049410494

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21story building
+97ft-345ft

Overall

20129

Males

12358

M45-49

12358

5K→10K

3.1 - 6.2 mi

Top 54%
×5story building
+79ft-138ft

Overall

14401

Males

10081

M45-49

10081

10K→15K

6.2 - 9.3 mi

Top 76%
×3story building
+67ft-78ft

Overall

20129

Males

12358

M45-49

12358

15K→20K

9.3 - 12.4 mi

Top 71%
×5story building
+106ft-86ft

Overall

18943

Males

11864

M45-49

11864

20K→Half

12.4 - 13.1 mi

Top 51%
×2story building
+19ft-37ft

Overall

13484

Males

9689

M45-49

9689

Half→25K

13.1 - 15.5 mi

Top 48%
×4story building
+66ft-88ft

Overall

12813

Males

9272

M45-49

9272

25K→30K

15.5 - 18.6 mi

Top 60%
×9story building
+181ft-148ft

Overall

16034

Males

10489

M45-49

10489

30K→20M

18.6 - 20.0 mi

Top 50%
×5story building
+64ft-50ft

Overall

13329

Males

9287

M45-49

9287

20M→21M

20.0 - 21.0 mi

Top 45%
×8story building
+106ft-24ft

Overall

11872

Males

8533

M45-49

8533

21M→35K

21.0 - 21.8 mi

Top 45%
×7story building
+17ft-86ft

Overall

11934

Males

8545

M45-49

8545

35K→23M

21.8 - 23.0 mi

Top 42%
×5story building
+23ft-63ft

Overall

11189

Males

8072

M45-49

8072

23M→24M

23.0 - 24.0 mi

Top 51%
×6story building
+12ft-82ft

Overall

13523

Males

9099

M45-49

9099

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

14798

Males

9597

M45-49

9597

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

14764

Males

9568

M45-49

9568

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2story building
+22ft-21ft

Overall

16738

Males

10494

M45-49

10494

Passing Analysis

Category:
▼Net Change
0
0 passed by0 passed
SegmentMovementRank
Start → 5K-#12554
5K → 10K
97564-911
#12554 → #13465
10K → 15K
25804-2576
#13465 → #16041
15K → 20K
82739-788
#16041 → #16829
20K → Half
2138+136
#16829 → #16693
Half → 25K
1627+626
#16693 → #16067
25K → 30K
180182+2
#16067 → #16065
30K → 20M
4228+224
#16065 → #15841
20M → 21M
3270+267
#15841 → #15574
21M → 35K
6135+129
#15574 → #15445
35K → 23M
6274+268
#15445 → #15177
23M → 24M
17102+85
#15177 → #15092
24M → 40K
5575+20
#15092 → #15072
40K → 25.2M
2643+17
#15072 → #15055
25.2M → Finish
11834-84
#15055 → #15139
TOTALS
48002215-2585
#12554 → #15139

Passing Visualized

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