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BOSTON MARATHON 2023

Weifang Zhang

Bib: 22887•F

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 46%
Division (F50-54)
#0 / 1207
Top 40%
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
8:03/mi
25:01
↑ 97↓ 3451.5%
10K· 6.21 mi
8:21/mi
50:58
↑ 79↓ 1380.4%
15K· 9.32 mi
8:32/mi
1:17:29
↑ 67↓ 78
20K· 12.43 mi
8:43/mi
1:44:34
↑ 106↓ 860.1%
Half· 13.11 mi
8:30/mi
1:50:22
↑ 19↓ 370.5%
25K· 15.53 mi
8:57/mi
2:12:05
↑ 66↓ 880.2%
30K· 18.64 mi
9:14/mi
2:40:45
↑ 181↓ 1480.2%
20M
9:10/mi
2:53:12
↑ 64↓ 500.2%
21M
9:54/mi
3:03:06
↑ 106↓ 241.6%
35K· 21.75 mi
8:37/mi
3:09:33
↑ 17↓ 861.7%
23M
9:18/mi
3:21:12
↑ 23↓ 630.6%
24M
8:41/mi
3:29:53
↓ 821.3%
40K· 24.85 mi
9:00/mi
3:37:35
↓ 200.3%
25.2M
9:46/mi
3:40:57
↑ 13↓ 160.2%
Finish· 26.22 mi
8:32/mi
3:49:39
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:22
Pace8:25 /mi
2nd Half
Distance13.11 mi
Time1:59:17
Pace9:06 /mi
📊Positive Split: 8.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:40:0525:018:0325:01
8:03
-
10K
6.21 mi12:06:0250:588:1225:57
8:21
+0:18
15K
9.32 mi12:32:331:17:298:1926:31
8:32
+0:11
20K
12.43 mi12:59:381:44:348:2527:05
8:43
+0:11
Half
13.11 mi13:05:261:50:228:255:48
8:30
-0:13
25K
15.53 mi13:27:092:12:058:3021:43
8:57
+0:27
30K
18.64 mi13:55:492:40:458:3728:40
9:14
+0:17
20M
20.00 mi14:08:162:53:128:4012:27
9:10
-0:04
21M
21.00 mi14:18:103:03:068:439:54
9:54
+0:44
35K
21.75 mi14:24:373:09:338:436:27
8:37
-1:17
23M
23.00 mi14:36:163:21:128:4511:39
9:18
+0:41
24M
24.00 mi14:44:573:29:538:458:41
8:41
-0:37
40K
24.85 mi14:52:393:37:358:457:42
9:00
+0:19
25.2M
25.20 mi14:56:013:40:578:463:22
9:46
+0:46
Finish
26.22 mi15:04:433:49:398:468:42
8:32
-1:14

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

8:03 /mi

Average Pace

8:46 /mi

Slowest Pace

9:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

50:58

22% of race

Time at Steady Pace

1:44:57

46% of race

Time at Slower Pace

1:13:44

32% of race

Average Pace: 8:46 /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 mi11:40:0525:018:0325:01
8:03
#14391
10K
6.21 mi12:06:0250:588:1225:57
8:21
#15852
15K
9.32 mi12:32:331:17:298:1926:31
8:32
#16608
20K
12.43 mi12:59:381:44:348:2527:05
8:43
#17039
Half
13.11 mi13:05:261:50:228:255:48
8:30
#17075
25K
15.53 mi13:27:092:12:058:3021:43
8:57
#17337
30K
18.64 mi13:55:492:40:458:3728:40
9:14
#17504
20M
20.00 mi14:08:162:53:128:4012:27
9:10
#17489
21M
21.00 mi14:18:103:03:068:439:54
9:54
#17497
35K
21.75 mi14:24:373:09:338:436:27
8:37
#17441
23M
23.00 mi14:36:163:21:128:4511:39
9:18
#17450
24M
24.00 mi14:44:573:29:538:458:41
8:41
#17370
40K
24.85 mi14:52:393:37:358:457:42
9:00
#17320
25.2M
25.20 mi14:56:013:40:578:463:22
9:46
#17302
Finish
26.22 mi15:04:433:49:398:468:42
8:32
#17273
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi143914264426418050(Top 68%)6530(Top 57%)6530(Top 541%)
10K6.21 mi3.10 mi15852-14615192-9285192-92817266(Top 65%)6041(Top 53%)6041(Top 500%)
15K9.32 mi3.11 mi16608-7565668-4765668-47618050(Top 68%)6530(Top 57%)6530(Top 541%)
20K12.43 mi3.11 mi17039-4315952-2845952-28418228(Top 68%)6628(Top 58%)6628(Top 549%)
Half13.11 mi0.68 mi17075-365976-245976-2417750(Top 67%)6328(Top 55%)6328(Top 524%)
25K15.53 mi2.42 mi17337-2626146-1706146-17018748(Top 70%)6985(Top 61%)6985(Top 579%)
30K18.64 mi3.11 mi17504-1676258-1126258-11218283(Top 69%)6805(Top 60%)6805(Top 564%)
20M20.00 mi1.36 mi17489+156273-156273-1517372(Top 65%)6371(Top 56%)6371(Top 528%)
21M21.00 mi1.00 mi17497-86294-216294-2117663(Top 66%)6562(Top 57%)6562(Top 544%)
35K21.75 mi0.75 mi17441+566269+256269+2516022(Top 60%)5712(Top 50%)5712(Top 473%)
23M23.00 mi1.25 mi17450-96291-226291-2217544(Top 66%)6598(Top 58%)6598(Top 547%)
24M24.00 mi1.00 mi17370+806251+406251+4015603(Top 59%)5593(Top 49%)5593(Top 463%)
40K24.85 mi0.85 mi17320+506241+106241+1016204(Top 61%)5975(Top 52%)5975(Top 495%)
25.2M25.20 mi0.35 mi17302+186236+56236+516423(Top 62%)6117(Top 54%)6117(Top 507%)
Finish26.22 mi1.02 mi17273+296226+106226+1015671(Top 59%)5639(Top 49%)5639(Top 467%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21story building
+97ft-345ft

Overall

18050

Females

6530

F50-54

6530

5K→10K

3.1 - 6.2 mi

Top 65%
×5story building
+79ft-138ft

Overall

17266

Females

6041

F50-54

6041

10K→15K

6.2 - 9.3 mi

Top 68%
×3story building
+67ft-78ft

Overall

18050

Females

6530

F50-54

6530

15K→20K

9.3 - 12.4 mi

Top 68%
×5story building
+106ft-86ft

Overall

18228

Females

6628

F50-54

6628

20K→Half

12.4 - 13.1 mi

Top 67%
×2story building
+19ft-37ft

Overall

17750

Females

6328

F50-54

6328

Half→25K

13.1 - 15.5 mi

Top 70%
×4story building
+66ft-88ft

Overall

18748

Females

6985

F50-54

6985

25K→30K

15.5 - 18.6 mi

Top 69%
×9story building
+181ft-148ft

Overall

18283

Females

6805

F50-54

6805

30K→20M

18.6 - 20.0 mi

Top 65%
×5story building
+64ft-50ft

Overall

17372

Females

6371

F50-54

6371

20M→21M

20.0 - 21.0 mi

Top 66%
×8story building
+106ft-24ft

Overall

17663

Females

6562

F50-54

6562

21M→35K

21.0 - 21.8 mi

Top 60%
×7story building
+17ft-86ft

Overall

16022

Females

5712

F50-54

5712

35K→23M

21.8 - 23.0 mi

Top 66%
×5story building
+23ft-63ft

Overall

17544

Females

6598

F50-54

6598

23M→24M

23.0 - 24.0 mi

Top 59%
×6story building
+12ft-82ft

Overall

15603

Females

5593

F50-54

5593

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

16204

Females

5975

F50-54

5975

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

16423

Females

6117

F50-54

6117

25.2M→Finish

25.2 - 26.2 mi

Top 59%
×2story building
+22ft-21ft

Overall

15671

Females

5639

F50-54

5639

Passing Analysis

Category:
Athletes Passed
976
Passed By
3858
Net Change
-2882
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14391
5K → 10K281489-1461#14391#15852
10K → 15K33789-756#15852#16608
15K → 20K77508-431#16608#17039
20K → Half1753-36#17039#17075
Half → 25K62324-262#17075#17337
25K → 30K116283-167#17337#17504
30K → 20M9580+15#17504#17489
20M → 21M8088-8#17489#17497
21M → 35K7822+56#17497#17441
35K → 23M9099-9#17441#17450
23M → 24M10222+80#17450#17370
24M → 40K8737+50#17370#17320
40K → 25.2M3517+18#17320#17302
25.2M → Finish7647+29#17302#17273
TOTALS9763858-2882
📊

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