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BOSTON MARATHON 2023

Xuemei Zhu

Bib: 23886•F

CT

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F55-59)
#0 / 815
Top 44%
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
9:04/mi
28:10
↑ 97↓ 3451.5%
10K· 6.21 mi
9:02/mi
56:15
↑ 79↓ 1380.4%
15K· 9.32 mi
9:05/mi
1:24:27
↑ 67↓ 78
20K· 12.43 mi
9:09/mi
1:52:53
↑ 106↓ 860.1%
Half· 13.11 mi
9:27/mi
1:59:20
↑ 19↓ 370.5%
25K· 15.53 mi
8:58/mi
2:21:05
↑ 66↓ 880.2%
30K· 18.64 mi
9:23/mi
2:50:13
↑ 181↓ 1480.2%
20M
9:30/mi
3:03:08
↑ 64↓ 500.2%
21M
9:48/mi
3:12:56
↑ 106↓ 241.6%
35K· 21.75 mi
9:01/mi
3:19:41
↑ 17↓ 861.7%
23M
9:09/mi
3:31:08
↑ 23↓ 630.6%
24M
8:59/mi
3:40:07
↓ 821.3%
40K· 24.85 mi
9:03/mi
3:47:51
↓ 200.3%
25.2M
9:43/mi
3:51:12
↑ 13↓ 160.2%
Finish· 26.22 mi
8:44/mi
4:00:06
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:20
Pace9:06 /mi
2nd Half
Distance13.11 mi
Time2:00:46
Pace9:13 /mi
📊Positive Split: 1.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:5628:109:0428:10
9:04
-
10K
6.21 mi11:53:0156:159:0328:05
9:02
-0:02
15K
9.32 mi12:21:131:24:279:0428:12
9:05
+0:03
20K
12.43 mi12:49:391:52:539:0528:26
9:09
+0:04
Half
13.11 mi12:56:061:59:209:066:27
9:27
+0:18
25K
15.53 mi13:17:512:21:059:0521:45
8:58
-0:29
30K
18.64 mi13:46:592:50:139:0829:08
9:23
+0:25
20M
20.00 mi13:59:543:03:089:0912:55
9:30
+0:07
21M
21.00 mi14:09:423:12:569:119:48
9:48
+0:18
35K
21.75 mi14:16:273:19:419:116:45
9:01
-0:47
23M
23.00 mi14:27:543:31:089:1111:27
9:09
+0:08
24M
24.00 mi14:36:533:40:079:108:59
8:59
-0:10
40K
24.85 mi14:44:373:47:519:107:44
9:03
+0:04
25.2M
25.20 mi14:47:583:51:129:103:21
9:43
+0:40
Finish
26.22 mi14:56:524:00:069:108:54
8:44
-0:59

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

8:44 /mi

Average Pace

9:10 /mi

Slowest Pace

9:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:46:57

95% of race

Time at Steady Pace

13:09

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:09 /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 mi11:24:5628:109:0428:10
9:04
#20731
10K
6.21 mi11:53:0156:159:0328:05
9:02
#20863
15K
9.32 mi12:21:131:24:279:0428:12
9:05
#20843
20K
12.43 mi12:49:391:52:539:0528:26
9:09
#20700
Half
13.11 mi12:56:061:59:209:066:27
9:27
#20793
25K
15.53 mi13:17:512:21:059:0521:45
8:58
#20481
30K
18.64 mi13:46:592:50:139:0829:08
9:23
#20201
20M
20.00 mi13:59:543:03:089:0912:55
9:30
#20082
21M
21.00 mi14:09:423:12:569:119:48
9:48
#19893
35K
21.75 mi14:16:273:19:419:116:45
9:01
#19810
23M
23.00 mi14:27:543:31:089:1111:27
9:09
#19662
24M
24.00 mi14:36:533:40:079:108:59
8:59
#19550
40K
24.85 mi14:44:373:47:519:107:44
9:03
#19451
25.2M
25.20 mi14:47:583:51:129:103:21
9:43
#19408
Finish
26.22 mi14:56:524:00:069:108:54
8:44
#19334
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi207318234823420842(Top 78%)8147(Top 71%)8147(Top 1000%)
10K6.21 mi3.10 mi20863-1328240-68240-621042(Top 79%)8289(Top 73%)8289(Top 1017%)
15K9.32 mi3.11 mi20843+208199+418199+4120842(Top 78%)8147(Top 71%)8147(Top 1000%)
20K12.43 mi3.11 mi20700+1438105+948105+9420373(Top 77%)7885(Top 69%)7885(Top 967%)
Half13.11 mi0.68 mi20793-938157-528157-5221980(Top 83%)8766(Top 77%)8766(Top 1076%)
25K15.53 mi2.42 mi20481+3127970+1877970+18718832(Top 71%)7034(Top 62%)7034(Top 863%)
30K18.64 mi3.11 mi20201+2807841+1297841+12918945(Top 71%)7167(Top 63%)7167(Top 879%)
20M20.00 mi1.36 mi20082+1197791+507791+5018889(Top 71%)7237(Top 63%)7237(Top 888%)
21M21.00 mi1.00 mi19893+1897679+1127679+11217289(Top 65%)6366(Top 56%)6366(Top 781%)
35K21.75 mi0.75 mi19810+837637+427637+4218032(Top 68%)6863(Top 60%)6863(Top 842%)
23M23.00 mi1.25 mi19662+1487562+757562+7516803(Top 63%)6195(Top 54%)6195(Top 760%)
24M24.00 mi1.00 mi19550+1127510+527510+5217187(Top 65%)6466(Top 57%)6466(Top 793%)
40K24.85 mi0.85 mi19451+997463+477463+4716436(Top 62%)6109(Top 53%)6109(Top 750%)
25.2M25.20 mi0.35 mi19408+437433+307433+3016279(Top 61%)6046(Top 53%)6046(Top 742%)
Finish26.22 mi1.02 mi19334+747400+337400+3316704(Top 63%)6217(Top 54%)6217(Top 763%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21story building
+97ft-345ft

Overall

20842

Females

8147

F55-59

8147

5K→10K

3.1 - 6.2 mi

Top 79%
×5story building
+79ft-138ft

Overall

21042

Females

8289

F55-59

8289

10K→15K

6.2 - 9.3 mi

Top 78%
×3story building
+67ft-78ft

Overall

20842

Females

8147

F55-59

8147

15K→20K

9.3 - 12.4 mi

Top 77%
×5story building
+106ft-86ft

Overall

20373

Females

7885

F55-59

7885

20K→Half

12.4 - 13.1 mi

Top 83%
×2story building
+19ft-37ft

Overall

21980

Females

8766

F55-59

8766

Half→25K

13.1 - 15.5 mi

Top 71%
×4story building
+66ft-88ft

Overall

18832

Females

7034

F55-59

7034

25K→30K

15.5 - 18.6 mi

Top 71%
×9story building
+181ft-148ft

Overall

18945

Females

7167

F55-59

7167

30K→20M

18.6 - 20.0 mi

Top 71%
×5story building
+64ft-50ft

Overall

18889

Females

7237

F55-59

7237

20M→21M

20.0 - 21.0 mi

Top 65%
×8story building
+106ft-24ft

Overall

17289

Females

6366

F55-59

6366

21M→35K

21.0 - 21.8 mi

Top 68%
×7story building
+17ft-86ft

Overall

18032

Females

6863

F55-59

6863

35K→23M

21.8 - 23.0 mi

Top 63%
×5story building
+23ft-63ft

Overall

16803

Females

6195

F55-59

6195

23M→24M

23.0 - 24.0 mi

Top 65%
×6story building
+12ft-82ft

Overall

17187

Females

6466

F55-59

6466

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

16436

Females

6109

F55-59

6109

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

16279

Females

6046

F55-59

6046

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2story building
+22ft-21ft

Overall

16704

Females

6217

F55-59

6217

Passing Analysis

Category:
Athletes Passed
2259
Passed By
862
Net Change
+1397
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20731
5K → 10K236368-132#20731#20863
10K → 15K188168+20#20863#20843
15K → 20K23390+143#20843#20700
20K → Half8101-93#20700#20793
Half → 25K3208+312#20793#20481
25K → 30K31232+280#20481#20201
30K → 20M14627+119#20201#20082
20M → 21M20112+189#20082#19893
21M → 35K918+83#19893#19810
35K → 23M1579+148#19810#19662
23M → 24M12210+112#19662#19550
24M → 40K1045+99#19550#19451
40K → 25.2M474+43#19451#19408
25.2M → Finish9420+74#19408#19334
TOTALS2259862+1397
📊

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