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BOSTON MARATHON 2023

Hongwei Zhou

Bib: 20020•F

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 42%
Masters (Masters Women)
#0 / 6539
Top 30%
Division (F50-54)
#0 / 1207
Top 21%
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
7:51/mi
24:23
↑ 97↓ 3451.5%
10K· 6.21 mi
7:45/mi
48:28
↑ 79↓ 1380.4%
15K· 9.32 mi
8:00/mi
1:13:18
↑ 67↓ 78
20K· 12.43 mi
8:15/mi
1:38:55
↑ 106↓ 860.1%
Half· 13.11 mi
8:12/mi
1:44:31
↑ 19↓ 370.5%
25K· 15.53 mi
8:24/mi
2:04:54
↑ 66↓ 880.2%
30K· 18.64 mi
8:50/mi
2:32:22
↑ 181↓ 1480.2%
20M
8:59/mi
2:44:35
↑ 64↓ 500.2%
21M
9:43/mi
2:54:18
↑ 106↓ 241.6%
35K· 21.75 mi
8:44/mi
3:00:50
↑ 17↓ 861.7%
23M
8:58/mi
3:12:04
↑ 23↓ 630.6%
24M
8:38/mi
3:20:42
↓ 821.3%
40K· 24.85 mi
8:37/mi
3:28:04
↓ 200.3%
25.2M
9:23/mi
3:31:18
↑ 13↓ 160.2%
Finish· 26.22 mi
8:16/mi
3:39:43
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:31
Pace7:58 /mi
2nd Half
Distance13.11 mi
Time1:55:12
Pace8:47 /mi
📊Positive Split: 10.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:2824:237:5124:23
7:51
-
10K
6.21 mi11:44:3348:287:4824:05
7:45
-0:06
15K
9.32 mi12:09:231:13:187:5224:50
8:00
+0:15
20K
12.43 mi12:35:001:38:557:5825:37
8:15
+0:15
Half
13.11 mi12:40:361:44:317:585:36
8:12
-0:03
25K
15.53 mi13:00:592:04:548:0220:23
8:24
+0:12
30K
18.64 mi13:28:272:32:228:1027:28
8:50
+0:26
20M
20.00 mi13:40:402:44:358:1412:13
8:59
+0:09
21M
21.00 mi13:50:232:54:188:189:43
9:43
+0:44
35K
21.75 mi13:56:553:00:508:196:32
8:44
-0:59
23M
23.00 mi14:08:093:12:048:2111:14
8:58
+0:14
24M
24.00 mi14:16:473:20:428:228:38
8:38
-0:20
40K
24.85 mi14:24:093:28:048:227:22
8:37
-0:01
25.2M
25.20 mi14:27:233:31:188:233:14
9:23
+0:46
Finish
26.22 mi14:35:483:39:438:238:25
8:16
-1:07

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

7:45 /mi

Average Pace

8:23 /mi

Slowest Pace

9:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:52:56

51% of race

Time at Steady Pace

1:10:23

32% of race

Time at Slower Pace

36:24

17% of race

Average Pace: 8:23 /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 mi11:20:2824:237:5124:23
7:51
#12848
10K
6.21 mi11:44:3348:287:4824:05
7:45
#12708
15K
9.32 mi12:09:231:13:187:5224:50
8:00
#13279
20K
12.43 mi12:35:001:38:557:5825:37
8:15
#13785
Half
13.11 mi12:40:361:44:317:585:36
8:12
#13890
25K
15.53 mi13:00:592:04:548:0220:23
8:24
#14205
30K
18.64 mi13:28:272:32:228:1027:28
8:50
#14622
20M
20.00 mi13:40:402:44:358:1412:13
8:59
#14776
21M
21.00 mi13:50:232:54:188:189:43
9:43
#14895
35K
21.75 mi13:56:553:00:508:196:32
8:44
#14953
23M
23.00 mi14:08:093:12:048:2111:14
8:58
#14993
24M
24.00 mi14:16:473:20:428:228:38
8:38
#14978
40K
24.85 mi14:24:093:28:048:227:22
8:37
#14923
25.2M
25.20 mi14:27:233:31:188:233:14
9:23
#14905
Finish
26.22 mi14:35:483:39:438:238:25
8:16
#14868
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi128483354335414350(Top 54%)4295(Top 38%)4295(Top 356%)
10K6.21 mi3.10 mi12708+1403268+863268+8612712(Top 48%)3265(Top 29%)3265(Top 271%)
15K9.32 mi3.11 mi13279-5713625-3573625-35714350(Top 54%)4295(Top 38%)4295(Top 356%)
20K12.43 mi3.11 mi13785-5063956-3313956-33115246(Top 57%)4864(Top 43%)4864(Top 403%)
Half13.11 mi0.68 mi13890-1054020-644020-6415885(Top 60%)5217(Top 46%)5217(Top 432%)
25K15.53 mi2.42 mi14205-3154236-2164236-21615629(Top 59%)5219(Top 46%)5219(Top 432%)
30K18.64 mi3.11 mi14622-4174511-2754511-27516318(Top 61%)5676(Top 50%)5676(Top 470%)
20M20.00 mi1.36 mi14776-1544625-1144625-11416486(Top 62%)5851(Top 51%)5851(Top 485%)
21M21.00 mi1.00 mi14895-1194727-1024727-10216916(Top 64%)6132(Top 54%)6132(Top 508%)
35K21.75 mi0.75 mi14953-584784-574784-5716595(Top 62%)6035(Top 53%)6035(Top 500%)
23M23.00 mi1.25 mi14993-404830-464830-4615921(Top 60%)5691(Top 50%)5691(Top 471%)
24M24.00 mi1.00 mi14978+154843-134843-1315275(Top 57%)5387(Top 47%)5387(Top 446%)
40K24.85 mi0.85 mi14923+554833+104833+1014076(Top 53%)4787(Top 42%)4787(Top 397%)
25.2M25.20 mi0.35 mi14905+184829+44829+414619(Top 55%)5085(Top 45%)5085(Top 421%)
Finish26.22 mi1.02 mi14868+374828+14828+113870(Top 52%)4673(Top 41%)4673(Top 387%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21story building
+97ft-345ft

Overall

14350

Females

4295

F50-54

4295

5K→10K

3.1 - 6.2 mi

Top 48%
×5story building
+79ft-138ft

Overall

12712

Females

3265

F50-54

3265

10K→15K

6.2 - 9.3 mi

Top 54%
×3story building
+67ft-78ft

Overall

14350

Females

4295

F50-54

4295

15K→20K

9.3 - 12.4 mi

Top 57%
×5story building
+106ft-86ft

Overall

15246

Females

4864

F50-54

4864

20K→Half

12.4 - 13.1 mi

Top 60%
×2story building
+19ft-37ft

Overall

15885

Females

5217

F50-54

5217

Half→25K

13.1 - 15.5 mi

Top 59%
×4story building
+66ft-88ft

Overall

15629

Females

5219

F50-54

5219

25K→30K

15.5 - 18.6 mi

Top 61%
×9story building
+181ft-148ft

Overall

16318

Females

5676

F50-54

5676

30K→20M

18.6 - 20.0 mi

Top 62%
×5story building
+64ft-50ft

Overall

16486

Females

5851

F50-54

5851

20M→21M

20.0 - 21.0 mi

Top 64%
×8story building
+106ft-24ft

Overall

16916

Females

6132

F50-54

6132

21M→35K

21.0 - 21.8 mi

Top 62%
×7story building
+17ft-86ft

Overall

16595

Females

6035

F50-54

6035

35K→23M

21.8 - 23.0 mi

Top 60%
×5story building
+23ft-63ft

Overall

15921

Females

5691

F50-54

5691

23M→24M

23.0 - 24.0 mi

Top 57%
×6story building
+12ft-82ft

Overall

15275

Females

5387

F50-54

5387

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

14076

Females

4787

F50-54

4787

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

14619

Females

5085

F50-54

5085

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2story building
+22ft-21ft

Overall

13870

Females

4673

F50-54

4673

Passing Analysis

Category:
Athletes Passed
1131
Passed By
3151
Net Change
-2020
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12848
5K → 10K385245+140#12848#12708
10K → 15K59630-571#12708#13279
15K → 20K68574-506#13279#13785
20K → Half14119-105#13785#13890
Half → 25K57372-315#13890#14205
25K → 30K80497-417#14205#14622
30K → 20M41195-154#14622#14776
20M → 21M50169-119#14776#14895
21M → 35K3290-58#14895#14953
35K → 23M71111-40#14953#14993
23M → 24M6752+15#14993#14978
24M → 40K8833+55#14978#14923
40K → 25.2M3517+18#14923#14905
25.2M → Finish8447+37#14905#14868
TOTALS11313151-2020
📊

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