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BOSTON MARATHON 2023

Yue Zhang

Bib: 21639•F

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 40%
Division (F50-54)
#0 / 1207
Top 33%
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
8:46/mi
27:14
↑ 97↓ 3451.5%
10K· 6.21 mi
8:32/mi
53:45
↑ 79↓ 1380.4%
15K· 9.32 mi
8:36/mi
1:20:29
↑ 67↓ 78
20K· 12.43 mi
8:45/mi
1:47:41
↑ 106↓ 860.1%
Half· 13.11 mi
8:34/mi
1:53:32
↑ 19↓ 370.5%
25K· 15.53 mi
8:35/mi
2:14:20
↑ 66↓ 880.2%
30K· 18.64 mi
8:45/mi
2:41:31
↑ 181↓ 1480.2%
20M
8:52/mi
2:53:35
↑ 64↓ 500.2%
21M
8:52/mi
3:02:27
↑ 106↓ 241.6%
35K· 21.75 mi
8:20/mi
3:08:41
↑ 17↓ 861.7%
23M
8:36/mi
3:19:27
↑ 23↓ 630.6%
24M
8:21/mi
3:27:48
↓ 821.3%
40K· 24.85 mi
8:26/mi
3:35:01
↓ 200.3%
25.2M
9:08/mi
3:38:10
↑ 13↓ 160.2%
Finish· 26.22 mi
7:57/mi
3:46:16
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:53:32
Pace8:40 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:52:44
Pace8:36 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:2127:148:4627:14
8:46
-
10K
6.21 mi11:48:5253:458:3926:31
8:32
-0:14
15K
9.32 mi12:15:361:20:298:3826:44
8:36
+0:04
20K
12.43 mi12:42:481:47:418:4027:12
8:45
+0:09
Half
13.11 mi12:48:391:53:328:405:51
8:34
-0:11
25K
15.53 mi13:09:272:14:208:3920:48
8:35
+0:01
30K
18.64 mi13:36:382:41:318:4027:11
8:45
+0:10
20M
20.00 mi13:48:422:53:358:4112:04
8:52
+0:07
21M
21.00 mi13:57:343:02:278:418:52
8:52
0:00
35K
21.75 mi14:03:483:08:418:416:14
8:20
-0:32
23M
23.00 mi14:14:343:19:278:4010:46
8:36
+0:16
24M
24.00 mi14:22:553:27:488:408:21
8:21
-0:15
40K
24.85 mi14:30:083:35:018:397:13
8:26
+0:05
25.2M
25.20 mi14:33:173:38:108:393:09
9:08
+0:42
Finish
26.22 mi14:41:233:46:168:388:06
7:57
-1:11

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

7:57 /mi

Average Pace

8:38 /mi

Slowest Pace

9:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:00:34

53% of race

Time at Steady Pace

1:45:42

47% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:38 /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 mi11:22:2127:148:4627:14
8:46
#19268
10K
6.21 mi11:48:5253:458:3926:31
8:32
#18799
15K
9.32 mi12:15:361:20:298:3826:44
8:36
#18669
20K
12.43 mi12:42:481:47:418:4027:12
8:45
#18609
Half
13.11 mi12:48:391:53:328:405:51
8:34
#18573
25K
15.53 mi13:09:272:14:208:3920:48
8:35
#18250
30K
18.64 mi13:36:382:41:318:4027:11
8:45
#17741
20M
20.00 mi13:48:422:53:358:4112:04
8:52
#17598
21M
21.00 mi13:57:343:02:278:418:52
8:52
#17307
35K
21.75 mi14:03:483:08:418:416:14
8:20
#17199
23M
23.00 mi14:14:343:19:278:4010:46
8:36
#16997
24M
24.00 mi14:22:553:27:488:408:21
8:21
#16873
40K
24.85 mi14:30:083:35:018:397:13
8:26
#16720
25.2M
25.20 mi14:33:173:38:108:393:09
9:08
#16651
Finish
26.22 mi14:41:233:46:168:388:06
7:57
#16459
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi192687367736718476(Top 69%)6779(Top 59%)6779(Top 562%)
10K6.21 mi3.10 mi18799+4697010+3577010+35718463(Top 69%)6743(Top 59%)6743(Top 559%)
15K9.32 mi3.11 mi18669+1306921+896921+8918476(Top 69%)6779(Top 59%)6779(Top 562%)
20K12.43 mi3.11 mi18609+606872+496872+4918438(Top 69%)6755(Top 59%)6755(Top 560%)
Half13.11 mi0.68 mi18573+366847+256847+2518189(Top 68%)6584(Top 58%)6584(Top 545%)
25K15.53 mi2.42 mi18250+3236679+1686679+16816703(Top 63%)5837(Top 51%)5837(Top 484%)
30K18.64 mi3.11 mi17741+5096400+2796400+27915789(Top 59%)5380(Top 47%)5380(Top 446%)
20M20.00 mi1.36 mi17598+1436329+716329+7115867(Top 60%)5498(Top 48%)5498(Top 456%)
21M21.00 mi1.00 mi17307+2916179+1506179+15012710(Top 48%)3806(Top 33%)3806(Top 315%)
35K21.75 mi0.75 mi17199+1086118+616118+6114354(Top 54%)4771(Top 42%)4771(Top 395%)
23M23.00 mi1.25 mi16997+2026022+966022+9613823(Top 52%)4528(Top 40%)4528(Top 375%)
24M24.00 mi1.00 mi16873+1245966+565966+5613581(Top 51%)4450(Top 39%)4450(Top 369%)
40K24.85 mi0.85 mi16720+1535891+755891+7513024(Top 49%)4228(Top 37%)4228(Top 350%)
25.2M25.20 mi0.35 mi16651+695861+305861+3013373(Top 50%)4444(Top 39%)4444(Top 368%)
Finish26.22 mi1.02 mi16459+1925762+995762+9911794(Top 44%)3614(Top 32%)3614(Top 299%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21story building
+97ft-345ft

Overall

18476

Females

6779

F50-54

6779

5K→10K

3.1 - 6.2 mi

Top 69%
×5story building
+79ft-138ft

Overall

18463

Females

6743

F50-54

6743

10K→15K

6.2 - 9.3 mi

Top 69%
×3story building
+67ft-78ft

Overall

18476

Females

6779

F50-54

6779

15K→20K

9.3 - 12.4 mi

Top 69%
×5story building
+106ft-86ft

Overall

18438

Females

6755

F50-54

6755

20K→Half

12.4 - 13.1 mi

Top 68%
×2story building
+19ft-37ft

Overall

18189

Females

6584

F50-54

6584

Half→25K

13.1 - 15.5 mi

Top 63%
×4story building
+66ft-88ft

Overall

16703

Females

5837

F50-54

5837

25K→30K

15.5 - 18.6 mi

Top 59%
×9story building
+181ft-148ft

Overall

15789

Females

5380

F50-54

5380

30K→20M

18.6 - 20.0 mi

Top 60%
×5story building
+64ft-50ft

Overall

15867

Females

5498

F50-54

5498

20M→21M

20.0 - 21.0 mi

Top 48%
×8story building
+106ft-24ft

Overall

12710

Females

3806

F50-54

3806

21M→35K

21.0 - 21.8 mi

Top 54%
×7story building
+17ft-86ft

Overall

14354

Females

4771

F50-54

4771

35K→23M

21.8 - 23.0 mi

Top 52%
×5story building
+23ft-63ft

Overall

13823

Females

4528

F50-54

4528

23M→24M

23.0 - 24.0 mi

Top 51%
×6story building
+12ft-82ft

Overall

13581

Females

4450

F50-54

4450

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

13024

Females

4228

F50-54

4228

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

13373

Females

4444

F50-54

4444

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2story building
+22ft-21ft

Overall

11794

Females

3614

F50-54

3614

Passing Analysis

Category:
Athletes Passed
3345
Passed By
536
Net Change
+2809
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19268
5K → 10K652183+469#19268#18799
10K → 15K251121+130#18799#18669
15K → 20K191131+60#18669#18609
20K → Half5014+36#18609#18573
Half → 25K33916+323#18573#18250
25K → 30K5167+509#18250#17741
30K → 20M16219+143#17741#17598
20M → 21M2932+291#17598#17307
21M → 35K1146+108#17307#17199
35K → 23M21816+202#17199#16997
23M → 24M13511+124#16997#16873
24M → 40K1541+153#16873#16720
40K → 25.2M745+69#16720#16651
25.2M → Finish1964+192#16651#16459
TOTALS3345536+2809
📊

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