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BOSTON MARATHON 2023

Yin Zhu

Bib: 23251•F

NJ

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 42%
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
8:44/mi
27:09
↑ 97↓ 3451.5%
10K· 6.21 mi
8:47/mi
54:27
↑ 79↓ 1380.4%
15K· 9.32 mi
8:47/mi
1:21:45
↑ 67↓ 78
20K· 12.43 mi
8:50/mi
1:49:11
↑ 106↓ 860.1%
Half· 13.11 mi
8:48/mi
1:55:11
↑ 19↓ 370.5%
25K· 15.53 mi
8:47/mi
2:16:29
↑ 66↓ 880.2%
30K· 18.64 mi
9:10/mi
2:44:58
↑ 181↓ 1480.2%
20M
9:13/mi
2:57:30
↑ 64↓ 500.2%
21M
9:47/mi
3:07:17
↑ 106↓ 241.6%
35K· 21.75 mi
9:37/mi
3:14:29
↑ 17↓ 861.7%
23M
10:00/mi
3:27:00
↑ 23↓ 630.6%
24M
10:09/mi
3:37:09
↓ 821.3%
40K· 24.85 mi
10:13/mi
3:45:53
↓ 200.3%
25.2M
10:29/mi
3:49:30
↑ 13↓ 160.2%
Finish· 26.22 mi
9:24/mi
3:59:05
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:11
Pace8:47 /mi
2nd Half
Distance13.11 mi
Time2:03:54
Pace9:27 /mi
📊Positive Split: 7.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:2127:098:4427:09
8:44
-
10K
6.21 mi11:46:3954:278:4627:18
8:47
+0:03
15K
9.32 mi12:13:571:21:458:4627:18
8:47
0:00
20K
12.43 mi12:41:231:49:118:4727:26
8:50
+0:03
Half
13.11 mi12:47:231:55:118:476:00
8:48
-0:02
25K
15.53 mi13:08:412:16:298:4721:18
8:47
-0:01
30K
18.64 mi13:37:102:44:588:5128:29
9:10
+0:23
20M
20.00 mi13:49:422:57:308:5212:32
9:13
+0:03
21M
21.00 mi13:59:293:07:178:559:47
9:47
+0:34
35K
21.75 mi14:06:413:14:298:577:12
9:37
-0:10
23M
23.00 mi14:19:123:27:009:0012:31
10:00
+0:23
24M
24.00 mi14:29:213:37:099:0310:09
10:09
+0:09
40K
24.85 mi14:38:053:45:539:058:44
10:13
+0:04
25.2M
25.20 mi14:41:423:49:309:063:37
10:29
+0:16
Finish
26.22 mi14:51:173:59:059:089:35
9:24
-1:05

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

9:08 /mi

Slowest Pace

10:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:16:29

57% of race

Time at Steady Pace

50:36

21% of race

Time at Slower Pace

52:00

22% of race

Average Pace: 9:07 /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 mi11:19:2127:098:4427:09
8:44
#19128
10K
6.21 mi11:46:3954:278:4627:18
8:47
#19478
15K
9.32 mi12:13:571:21:458:4627:18
8:47
#19447
20K
12.43 mi12:41:231:49:118:4727:26
8:50
#19259
Half
13.11 mi12:47:231:55:118:476:00
8:48
#19248
25K
15.53 mi13:08:412:16:298:4721:18
8:47
#19016
30K
18.64 mi13:37:102:44:588:5128:29
9:10
#18841
20M
20.00 mi13:49:422:57:308:5212:32
9:13
#18760
21M
21.00 mi13:59:293:07:178:559:47
9:47
#18636
35K
21.75 mi14:06:413:14:298:577:12
9:37
#18704
23M
23.00 mi14:19:123:27:009:0012:31
10:00
#18834
24M
24.00 mi14:29:213:37:099:0310:09
10:09
#18998
40K
24.85 mi14:38:053:45:539:058:44
10:13
#19083
25.2M
25.20 mi14:41:423:49:309:063:37
10:29
#19092
Finish
26.22 mi14:51:173:59:059:089:35
9:24
#19155
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi191287282728219452(Top 73%)7363(Top 64%)7363(Top 903%)
10K6.21 mi3.10 mi19478-3507449-1677449-16719869(Top 75%)7621(Top 67%)7621(Top 935%)
15K9.32 mi3.11 mi19447+317422+277422+2719452(Top 73%)7363(Top 64%)7363(Top 903%)
20K12.43 mi3.11 mi19259+1887276+1467276+14618837(Top 71%)6990(Top 61%)6990(Top 858%)
Half13.11 mi0.68 mi19248+117265+117265+1119501(Top 73%)7379(Top 65%)7379(Top 905%)
25K15.53 mi2.42 mi19016+2327130+1357130+13517893(Top 67%)6515(Top 57%)6515(Top 799%)
30K18.64 mi3.11 mi18841+1757052+787052+7818032(Top 68%)6672(Top 58%)6672(Top 819%)
20M20.00 mi1.36 mi18760+817012+407012+4017686(Top 66%)6575(Top 58%)6575(Top 807%)
21M21.00 mi1.00 mi18636+1246950+626950+6217228(Top 65%)6328(Top 55%)6328(Top 776%)
35K21.75 mi0.75 mi18704-687001-517001-5120222(Top 76%)8060(Top 71%)8060(Top 989%)
23M23.00 mi1.25 mi18834-1307096-957096-9519985(Top 75%)7946(Top 70%)7946(Top 975%)
24M24.00 mi1.00 mi18998-1647198-1027198-10221197(Top 80%)8664(Top 76%)8664(Top 1063%)
40K24.85 mi0.85 mi19083-857249-517249-5120526(Top 77%)8342(Top 73%)8342(Top 1024%)
25.2M25.20 mi0.35 mi19092-97255-67255-619095(Top 72%)7556(Top 66%)7556(Top 927%)
Finish26.22 mi1.02 mi19155-637296-417296-4119790(Top 74%)7885(Top 69%)7885(Top 967%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21story building
+97ft-345ft

Overall

19452

Females

7363

F55-59

7363

5K→10K

3.1 - 6.2 mi

Top 75%
×5story building
+79ft-138ft

Overall

19869

Females

7621

F55-59

7621

10K→15K

6.2 - 9.3 mi

Top 73%
×3story building
+67ft-78ft

Overall

19452

Females

7363

F55-59

7363

15K→20K

9.3 - 12.4 mi

Top 71%
×5story building
+106ft-86ft

Overall

18837

Females

6990

F55-59

6990

20K→Half

12.4 - 13.1 mi

Top 73%
×2story building
+19ft-37ft

Overall

19501

Females

7379

F55-59

7379

Half→25K

13.1 - 15.5 mi

Top 67%
×4story building
+66ft-88ft

Overall

17893

Females

6515

F55-59

6515

25K→30K

15.5 - 18.6 mi

Top 68%
×9story building
+181ft-148ft

Overall

18032

Females

6672

F55-59

6672

30K→20M

18.6 - 20.0 mi

Top 66%
×5story building
+64ft-50ft

Overall

17686

Females

6575

F55-59

6575

20M→21M

20.0 - 21.0 mi

Top 65%
×8story building
+106ft-24ft

Overall

17228

Females

6328

F55-59

6328

21M→35K

21.0 - 21.8 mi

Top 76%
×7story building
+17ft-86ft

Overall

20222

Females

8060

F55-59

8060

35K→23M

21.8 - 23.0 mi

Top 75%
×5story building
+23ft-63ft

Overall

19985

Females

7946

F55-59

7946

23M→24M

23.0 - 24.0 mi

Top 80%
×6story building
+12ft-82ft

Overall

21197

Females

8664

F55-59

8664

24M→40K

24.0 - 24.9 mi

Top 77%
×1story
+6ft-20ft

Overall

20526

Females

8342

F55-59

8342

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

19095

Females

7556

F55-59

7556

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2story building
+22ft-21ft

Overall

19790

Females

7885

F55-59

7885

Passing Analysis

Category:
Athletes Passed
1625
Passed By
1652
Net Change
-27
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19128
5K → 10K186536-350#19128#19478
10K → 15K202171+31#19478#19447
15K → 20K25769+188#19447#19259
20K → Half2817+11#19259#19248
Half → 25K25422+232#19248#19016
25K → 30K25479+175#19016#18841
30K → 20M12847+81#18841#18760
20M → 21M15329+124#18760#18636
21M → 35K2896-68#18636#18704
35K → 23M39169-130#18704#18834
23M → 24M24188-164#18834#18998
24M → 40K26111-85#18998#19083
40K → 25.2M2029-9#19083#19092
25.2M → Finish2689-63#19092#19155
TOTALS16251652-27
📊

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