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BOSTON MARATHON 2023

Wei Zhang

Bib: 31978•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M40-44)
#0 / 2241
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
9:20/mi
28:59
↑ 97↓ 3451.5%
10K· 6.21 mi
8:40/mi
55:56
↑ 79↓ 1380.4%
15K· 9.32 mi
11:27/mi
1:31:31
↑ 67↓ 78
20K· 12.43 mi
9:18/mi
2:00:24
↑ 106↓ 860.1%
Half· 13.11 mi
9:23/mi
2:06:48
↑ 19↓ 370.5%
25K· 15.53 mi
9:56/mi
2:30:52
↑ 66↓ 880.2%
30K· 18.64 mi
10:55/mi
3:04:46
↑ 181↓ 1480.2%
20M
11:45/mi
3:20:44
↑ 64↓ 500.2%
21M
14:08/mi
3:34:52
↑ 106↓ 241.6%
35K· 21.75 mi
10:46/mi
3:42:55
↑ 17↓ 861.7%
23M
12:28/mi
3:58:32
↑ 23↓ 630.6%
24M
11:15/mi
4:09:47
↓ 821.3%
40K· 24.85 mi
12:31/mi
4:20:29
↓ 200.3%
25.2M
14:27/mi
4:25:28
↑ 13↓ 160.2%
Finish· 26.22 mi
11:57/mi
4:37:39
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:06:48
Pace9:40 /mi
2nd Half
Distance13.11 mi
Time2:30:51
Pace11:30 /mi
📊Positive Split: 19.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:1228:599:2028:59
9:20
-
10K
6.21 mi12:16:0955:569:0026:57
8:40
-0:40
15K
9.32 mi12:51:441:31:319:4935:35
11:27
+2:47
20K
12.43 mi13:20:372:00:249:4128:53
9:18
-2:09
Half
13.11 mi13:27:012:06:489:406:24
9:23
+0:05
25K
15.53 mi13:51:052:30:529:4324:04
9:56
+0:33
30K
18.64 mi14:24:593:04:469:5533:54
10:55
+0:59
20M
20.00 mi14:40:573:20:4410:0215:58
11:45
+0:50
21M
21.00 mi14:55:053:34:5210:1414:08
14:08
+2:23
35K
21.75 mi15:03:083:42:5510:158:03
10:46
-3:22
23M
23.00 mi15:18:453:58:3210:2215:37
12:28
+1:42
24M
24.00 mi15:30:004:09:4710:2411:15
11:15
-1:13
40K
24.85 mi15:40:424:20:2910:2910:42
12:31
+1:16
25.2M
25.20 mi15:45:414:25:2810:324:59
14:27
+1:56
Finish
26.22 mi15:57:524:37:3910:3612:11
11:57
-2:30

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

8:40 /mi

Average Pace

10:36 /mi

Slowest Pace

14:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55:17

42% of race

Time at Steady Pace

1:56:56

42% of race

Time at Slower Pace

45:26

16% of race

Average Pace: 10:35 /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 mi11:49:1228:599:2028:59
9:20
#21622
10K
6.21 mi12:16:0955:569:0026:57
8:40
#20657
15K
9.32 mi12:51:441:31:319:4935:35
11:27
#23193
20K
12.43 mi13:20:372:00:249:4128:53
9:18
#22650
Half
13.11 mi13:27:012:06:489:406:24
9:23
#22604
25K
15.53 mi13:51:052:30:529:4324:04
9:56
#22505
30K
18.64 mi14:24:593:04:469:5533:54
10:55
#22593
20M
20.00 mi14:40:573:20:4410:0215:58
11:45
#22718
21M
21.00 mi14:55:053:34:5210:1414:08
14:08
#22950
35K
21.75 mi15:03:083:42:5510:158:03
10:46
#22942
23M
23.00 mi15:18:453:58:3210:2215:37
12:28
#23074
24M
24.00 mi15:30:004:09:4710:2411:15
11:15
#23090
40K
24.85 mi15:40:424:20:2910:2910:42
12:31
#23165
25.2M
25.20 mi15:45:414:25:2810:324:59
14:27
#23230
Finish
26.22 mi15:57:524:37:3910:3612:11
11:57
#23343
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi21622128981289825665(Top 96%)14798(Top 98%)14798(Top 660%)
10K6.21 mi3.10 mi20657+96512515+38312515+38319272(Top 72%)12008(Top 79%)12008(Top 536%)
15K9.32 mi3.11 mi23193-253613720-120513720-120525665(Top 96%)14798(Top 98%)14798(Top 660%)
20K12.43 mi3.11 mi22650+54313466+25413466+25420948(Top 79%)12724(Top 84%)12724(Top 568%)
Half13.11 mi0.68 mi22604+4613439+2713439+2721758(Top 82%)13079(Top 86%)13079(Top 584%)
25K15.53 mi2.42 mi22505+9913377+6213377+6222048(Top 83%)13168(Top 87%)13168(Top 588%)
30K18.64 mi3.11 mi22593-8813388-1113388-1122959(Top 86%)13494(Top 89%)13494(Top 602%)
20M20.00 mi1.36 mi22718-12513444-5613444-5623881(Top 90%)13847(Top 91%)13847(Top 618%)
21M21.00 mi1.00 mi22950-23213543-9913543-9925142(Top 94%)14435(Top 95%)14435(Top 644%)
35K21.75 mi0.75 mi22942+813536+713536+722845(Top 86%)13314(Top 88%)13314(Top 594%)
23M23.00 mi1.25 mi23074-13213591-5513591-5524545(Top 92%)14108(Top 93%)14108(Top 630%)
24M24.00 mi1.00 mi23090-1613586+513586+523499(Top 88%)13583(Top 90%)13583(Top 606%)
40K24.85 mi0.85 mi23165-7513617-3113617-3124452(Top 92%)14014(Top 92%)14014(Top 625%)
25.2M25.20 mi0.35 mi23230-6513648-3113648-3125350(Top 95%)14470(Top 95%)14470(Top 646%)
Finish26.22 mi1.02 mi23343-11313689-4113689-4125185(Top 95%)14399(Top 95%)14399(Top 643%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 96%
×21story building
+97ft-345ft

Overall

25665

Males

14798

M40-44

14798

5K→10K

3.1 - 6.2 mi

Top 72%
×5story building
+79ft-138ft

Overall

19272

Males

12008

M40-44

12008

10K→15K

6.2 - 9.3 mi

Top 96%
×3story building
+67ft-78ft

Overall

25665

Males

14798

M40-44

14798

15K→20K

9.3 - 12.4 mi

Top 79%
×5story building
+106ft-86ft

Overall

20948

Males

12724

M40-44

12724

20K→Half

12.4 - 13.1 mi

Top 82%
×2story building
+19ft-37ft

Overall

21758

Males

13079

M40-44

13079

Half→25K

13.1 - 15.5 mi

Top 83%
×4story building
+66ft-88ft

Overall

22048

Males

13168

M40-44

13168

25K→30K

15.5 - 18.6 mi

Top 86%
×9story building
+181ft-148ft

Overall

22959

Males

13494

M40-44

13494

30K→20M

18.6 - 20.0 mi

Top 90%
×5story building
+64ft-50ft

Overall

23881

Males

13847

M40-44

13847

20M→21M

20.0 - 21.0 mi

Top 94%
×8story building
+106ft-24ft

Overall

25142

Males

14435

M40-44

14435

21M→35K

21.0 - 21.8 mi

Top 86%
×7story building
+17ft-86ft

Overall

22845

Males

13314

M40-44

13314

35K→23M

21.8 - 23.0 mi

Top 92%
×5story building
+23ft-63ft

Overall

24545

Males

14108

M40-44

14108

23M→24M

23.0 - 24.0 mi

Top 88%
×6story building
+12ft-82ft

Overall

23499

Males

13583

M40-44

13583

24M→40K

24.0 - 24.9 mi

Top 92%
×1story
+6ft-20ft

Overall

24452

Males

14014

M40-44

14014

40K→25.2M

24.9 - 25.2 mi

Top 95%
×1story
+13ft-16ft

Overall

25350

Males

14470

M40-44

14470

25.2M→Finish

25.2 - 26.2 mi

Top 95%
×2story building
+22ft-21ft

Overall

25185

Males

14399

M40-44

14399

Passing Analysis

Category:
Athletes Passed
1979
Passed By
3700
Net Change
-1721
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21622
5K → 10K100843+965#21622#20657
10K → 15K32539-2536#20657#23193
15K → 20K5452+543#23193#22650
20K → Half493+46#22650#22604
Half → 25K14243+99#22604#22505
25K → 30K81169-88#22505#22593
30K → 20M24149-125#22593#22718
20M → 21M5237-232#22718#22950
21M → 35K3527+8#22950#22942
35K → 23M20152-132#22942#23074
23M → 24M3046-16#23074#23090
24M → 40K2499-75#23090#23165
40K → 25.2M570-65#23165#23230
25.2M → Finish8121-113#23230#23343
TOTALS19793700-1721
📊

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