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BOSTON MARATHON 2023

Jing Zhang

Bib: 23209•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 47%
Division (F50-54)
#0 / 1207
Top 43%
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
8:25/mi
26:10
↑ 97↓ 3451.5%
10K· 6.21 mi
8:31/mi
52:37
↑ 79↓ 1380.4%
15K· 9.32 mi
8:29/mi
1:18:58
↑ 67↓ 78
20K· 12.43 mi
8:43/mi
1:46:04
↑ 106↓ 860.1%
Half· 13.11 mi
8:36/mi
1:51:56
↑ 19↓ 370.5%
25K· 15.53 mi
8:47/mi
2:13:13
↑ 66↓ 880.2%
30K· 18.64 mi
9:11/mi
2:41:45
↑ 181↓ 1480.2%
20M
9:26/mi
2:54:34
↑ 64↓ 500.2%
21M
9:55/mi
3:04:29
↑ 106↓ 241.6%
35K· 21.75 mi
8:37/mi
3:10:56
↑ 17↓ 861.7%
23M
8:59/mi
3:22:11
↑ 23↓ 630.6%
24M
8:40/mi
3:30:51
↓ 821.3%
40K· 24.85 mi
8:46/mi
3:38:21
↓ 200.3%
25.2M
9:28/mi
3:41:37
↑ 13↓ 160.2%
Finish· 26.22 mi
8:45/mi
3:50:32
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:56
Pace8:32 /mi
2nd Half
Distance13.11 mi
Time1:58:36
Pace9:03 /mi
📊Positive Split: 6.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:1226:108:2526:10
8:25
-
10K
6.21 mi11:50:3952:378:2826:27
8:31
+0:06
15K
9.32 mi12:17:001:18:588:2826:21
8:29
-0:02
20K
12.43 mi12:44:061:46:048:3227:06
8:43
+0:14
Half
13.11 mi12:49:581:51:568:325:52
8:36
-0:07
25K
15.53 mi13:11:152:13:138:3521:17
8:47
+0:11
30K
18.64 mi13:39:472:41:458:4128:32
9:11
+0:24
20M
20.00 mi13:52:362:54:348:4412:49
9:26
+0:15
21M
21.00 mi14:02:313:04:298:479:55
9:55
+0:29
35K
21.75 mi14:08:583:10:568:476:27
8:37
-1:18
23M
23.00 mi14:20:133:22:118:4711:15
8:59
+0:22
24M
24.00 mi14:28:533:30:518:478:40
8:40
-0:19
40K
24.85 mi14:36:233:38:218:477:30
8:46
+0:06
25.2M
25.20 mi14:39:393:41:378:483:16
9:28
+0:42
Finish
26.22 mi14:48:343:50:328:488:55
8:45
-0:43

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

8:25 /mi

Average Pace

8:48 /mi

Slowest Pace

9:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:24:32

89% of race

Time at Steady Pace

26:00

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:48 /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 mi11:24:1226:108:2526:10
8:25
#17051
10K
6.21 mi11:50:3952:378:2826:27
8:31
#17703
15K
9.32 mi12:17:001:18:588:2826:21
8:29
#17676
20K
12.43 mi12:44:061:46:048:3227:06
8:43
#17790
Half
13.11 mi12:49:581:51:568:325:52
8:36
#17815
25K
15.53 mi13:11:152:13:138:3521:17
8:47
#17795
30K
18.64 mi13:39:472:41:458:4128:32
9:11
#17828
20M
20.00 mi13:52:362:54:348:4412:49
9:26
#17898
21M
21.00 mi14:02:313:04:298:479:55
9:55
#17901
35K
21.75 mi14:08:583:10:568:476:27
8:37
#17817
23M
23.00 mi14:20:133:22:118:4711:15
8:59
#17705
24M
24.00 mi14:28:533:30:518:478:40
8:40
#17615
40K
24.85 mi14:36:233:38:218:477:30
8:46
#17526
25.2M
25.20 mi14:39:393:41:378:483:16
9:28
#17474
Finish
26.22 mi14:48:343:50:328:488:55
8:45
#17458
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi170515965596517691(Top 66%)6326(Top 55%)6326(Top 524%)
10K6.21 mi3.10 mi17703-6526351-3866351-38618347(Top 69%)6684(Top 59%)6684(Top 554%)
15K9.32 mi3.11 mi17676+276323+286323+2817691(Top 66%)6326(Top 55%)6326(Top 524%)
20K12.43 mi3.11 mi17790-1146397-746397-7418258(Top 69%)6643(Top 58%)6643(Top 550%)
Half13.11 mi0.68 mi17815-256410-136410-1318348(Top 69%)6683(Top 59%)6683(Top 554%)
25K15.53 mi2.42 mi17795+206417-76417-717829(Top 67%)6473(Top 57%)6473(Top 536%)
30K18.64 mi3.11 mi17828-336455-386455-3818095(Top 68%)6705(Top 59%)6705(Top 556%)
20M20.00 mi1.36 mi17898-706524-696524-6918597(Top 70%)7076(Top 62%)7076(Top 586%)
21M21.00 mi1.00 mi17901-36531-76531-717726(Top 67%)6595(Top 58%)6595(Top 546%)
35K21.75 mi0.75 mi17817+846489+426489+4216027(Top 60%)5717(Top 50%)5717(Top 474%)
23M23.00 mi1.25 mi17705+1126446+436446+4316025(Top 60%)5764(Top 50%)5764(Top 478%)
24M24.00 mi1.00 mi17615+906407+396407+3915501(Top 58%)5541(Top 49%)5541(Top 459%)
40K24.85 mi0.85 mi17526+896358+496358+4914978(Top 56%)5293(Top 46%)5293(Top 439%)
25.2M25.20 mi0.35 mi17474+526338+206338+2015153(Top 57%)5407(Top 47%)5407(Top 448%)
Finish26.22 mi1.02 mi17458+166337+16337+116787(Top 63%)6250(Top 55%)6250(Top 518%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21story building
+97ft-345ft

Overall

17691

Females

6326

F50-54

6326

5K→10K

3.1 - 6.2 mi

Top 69%
×5story building
+79ft-138ft

Overall

18347

Females

6684

F50-54

6684

10K→15K

6.2 - 9.3 mi

Top 66%
×3story building
+67ft-78ft

Overall

17691

Females

6326

F50-54

6326

15K→20K

9.3 - 12.4 mi

Top 69%
×5story building
+106ft-86ft

Overall

18258

Females

6643

F50-54

6643

20K→Half

12.4 - 13.1 mi

Top 69%
×2story building
+19ft-37ft

Overall

18348

Females

6683

F50-54

6683

Half→25K

13.1 - 15.5 mi

Top 67%
×4story building
+66ft-88ft

Overall

17829

Females

6473

F50-54

6473

25K→30K

15.5 - 18.6 mi

Top 68%
×9story building
+181ft-148ft

Overall

18095

Females

6705

F50-54

6705

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

18597

Females

7076

F50-54

7076

20M→21M

20.0 - 21.0 mi

Top 67%
×8story building
+106ft-24ft

Overall

17726

Females

6595

F50-54

6595

21M→35K

21.0 - 21.8 mi

Top 60%
×7story building
+17ft-86ft

Overall

16027

Females

5717

F50-54

5717

35K→23M

21.8 - 23.0 mi

Top 60%
×5story building
+23ft-63ft

Overall

16025

Females

5764

F50-54

5764

23M→24M

23.0 - 24.0 mi

Top 58%
×6story building
+12ft-82ft

Overall

15501

Females

5541

F50-54

5541

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

14978

Females

5293

F50-54

5293

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

15153

Females

5407

F50-54

5407

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2story building
+22ft-21ft

Overall

16787

Females

6250

F50-54

6250

Passing Analysis

Category:
Athletes Passed
1514
Passed By
1921
Net Change
-407
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17051
5K → 10K110762-652#17051#17703
10K → 15K203176+27#17703#17676
15K → 20K124238-114#17676#17790
20K → Half2348-25#17790#17815
Half → 25K141121+20#17815#17795
25K → 30K167200-33#17795#17828
30K → 20M73143-70#17828#17898
20M → 21M8184-3#17898#17901
21M → 35K9915+84#17901#17817
35K → 23M14634+112#17817#17705
23M → 24M10919+90#17705#17615
24M → 40K11122+89#17615#17526
40K → 25.2M6210+52#17526#17474
25.2M → Finish6549+16#17474#17458
TOTALS15141921-407
📊

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