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BOSTON MARATHON 2023

Wenli Bai

CA

Bib: 22974 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F50-54)
#0 / 1207
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
5K· 3.11 mi
8:47/mi
27:17
↑ 97↓ 345
10K· 6.21 mi
8:52/mi
54:51
↑ 79↓ 138
15K· 9.32 mi
8:51/mi
1:22:20
↑ 67↓ 78
20K· 12.43 mi
8:54/mi
1:49:59
↑ 106↓ 86
Half· 13.11 mi
8:42/mi
1:55:55
↑ 19↓ 37
25K· 15.53 mi
9:02/mi
2:17:49
↑ 66↓ 88
30K· 18.64 mi
9:24/mi
2:47:01
↑ 181↓ 148
20M
9:44/mi
3:00:15
↑ 64↓ 50
21M
10:00/mi
3:10:15
↑ 106↓ 24
35K· 21.75 mi
9:01/mi
3:17:00
↑ 17↓ 86
23M
9:41/mi
3:29:08
↑ 23↓ 63
24M
9:20/mi
3:38:28
↓ 82
40K· 24.85 mi
9:12/mi
3:46:20
↓ 20
25.2M
9:40/mi
3:49:40
↑ 13↓ 16
Finish· 26.22 mi
8:48/mi
3:58:38
↑ 22↓ 21
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:55:558:51 /mi⚡ faster
2nd Half
2:02:439:22 /mi+5.9%
Positive split — 5.9% 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
27:178:473.11 mi27:17
8:47
-
10K
54:518:503.10 mi27:34
8:52
+0:05
15K
1:22:208:503.11 mi27:29
8:51
-0:01
20K
1:49:598:513.11 mi27:39
8:54
+0:03
Half(13.11 mi)
1:55:558:510.68 mi5:56
8:42
-0:12
25K
2:17:498:522.42 mi21:54
9:02
+0:20
30K
2:47:018:583.11 mi29:12
9:24
+0:22
20M
3:00:159:011.36 mi13:14
9:44
+0:20
21M
3:10:159:041.00 mi10:00
10:00
+0:16
35K
3:17:009:030.75 mi6:45
9:01
-0:59
23M
3:29:089:061.25 mi12:08
9:41
+0:40
24M
3:38:289:061.00 mi9:20
9:20
-0:21
40K
3:46:209:060.85 mi7:52
9:12
-0:08
25.2M
3:49:409:070.35 mi3:20
9:40
+0:28
Finish(26.22 mi)
3:58:389:061.02 mi8:58
8:48
-0:52
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

8:42 /mi

Average Pace

9:06 /mi

Slowest Pace

10:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

3:19:56

84% of race

Time at Steady Pace

38:42

16% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:06 /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. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi19366741774171978075537553
10K3.10 mi19824-4587666-2497666-2492030878727872
15K3.11 mi19786+387613+537613+531978075537553
20K3.11 mi19593+1937484+1297484+1291921372197219
Half(13.11 mi)0.68 mi19558+357461+237461+231898270817081
25K2.42 mi19469+897401+607401+601914272127212
30K3.11 mi19399+707370+317370+311903872187218
20M1.36 mi19422-237403-337403-331967676827682
21M1.00 mi19325+977360+437360+431804867966796
35K0.75 mi19286+397340+207340+201802968606860
23M1.25 mi19265+217330+107330+101905774407440
24M1.00 mi19251+147335-57335-51861572327232
40K0.85 mi19172+797299+367299+361712464786478
25.2M0.35 mi19121+517273+267273+261605059145914
Finish(26.22 mi)1.02 mi19063+587244+297244+291706664186418

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21story building
+97ft-345ft

Overall

19780

Females

7553

F50-54

7553

5K→10K

3.1 - 6.2 mi

Top 76%
×5story building
+79ft-138ft

Overall

20308

Females

7872

F50-54

7872

10K→15K

6.2 - 9.3 mi

Top 74%
×3story building
+67ft-78ft

Overall

19780

Females

7553

F50-54

7553

15K→20K

9.3 - 12.4 mi

Top 72%
×5story building
+106ft-86ft

Overall

19213

Females

7219

F50-54

7219

20K→Half

12.4 - 13.1 mi

Top 71%
×2story building
+19ft-37ft

Overall

18982

Females

7081

F50-54

7081

Half→25K

13.1 - 15.5 mi

Top 72%
×4story building
+66ft-88ft

Overall

19142

Females

7212

F50-54

7212

25K→30K

15.5 - 18.6 mi

Top 72%
×9story building
+181ft-148ft

Overall

19038

Females

7218

F50-54

7218

30K→20M

18.6 - 20.0 mi

Top 74%
×5story building
+64ft-50ft

Overall

19676

Females

7682

F50-54

7682

20M→21M

20.0 - 21.0 mi

Top 68%
×8story building
+106ft-24ft

Overall

18048

Females

6796

F50-54

6796

21M→35K

21.0 - 21.8 mi

Top 68%
×7story building
+17ft-86ft

Overall

18029

Females

6860

F50-54

6860

35K→23M

21.8 - 23.0 mi

Top 72%
×5story building
+23ft-63ft

Overall

19057

Females

7440

F50-54

7440

23M→24M

23.0 - 24.0 mi

Top 70%
×6story building
+12ft-82ft

Overall

18615

Females

7232

F50-54

7232

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

17124

Females

6478

F50-54

6478

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

16050

Females

5914

F50-54

5914

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2story building
+22ft-21ft

Overall

17066

Females

6418

F50-54

6418

Passing Analysis

Category:
▲Net Change
+0
0 passed by0 passed
SegmentMovementRank
Start → 5K-#19366
5K → 10K
602144-458
#19366 → #19824
10K → 15K
157195+38
#19824 → #19786
15K → 20K
80273+193
#19786 → #19593
20K → Half
1853+35
#19593 → #19558
Half → 25K
80169+89
#19558 → #19469
25K → 30K
122192+70
#19469 → #19399
30K → 20M
10178-23
#19399 → #19422
20M → 21M
32129+97
#19422 → #19325
21M → 35K
2362+39
#19325 → #19286
35K → 23M
5778+21
#19286 → #19265
23M → 24M
5165+14
#19265 → #19251
24M → 40K
1695+79
#19251 → #19172
40K → 25.2M
455+51
#19172 → #19121
25.2M → Finish
2280+58
#19121 → #19063
TOTALS
13651668+303
#19366 → #19063

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