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BOSTON MARATHON 2023

Hong Zhou

Bib: 18882•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:08
Rank: #14627
Start → 5K
8:05/mi
25:08 split
10K· 6.21 mi
49:40
Rank: #14341 (+286)
5K → 10K
7:54/mi
24:32 split
15K· 9.32 mi
1:14:51
Rank: #14571 (-230)
10K → 15K
8:06/mi
25:11 split
20K· 12.43 mi
1:41:02
Rank: #15093 (-522)
15K → 20K
8:26/mi
26:11 split
Half· 13.11 mi
1:46:38
Rank: #15131 (-38)
20K → Half
8:12/mi
5:36 split
25K· 15.53 mi
2:07:21
Rank: #15338 (-207)
Half → 25K
8:33/mi
20:43 split
30K· 18.64 mi
2:35:41
Rank: #15816 (-478)
25K → 30K
9:07/mi
28:20 split
20M
2:48:31
Rank: #16072 (-256)
30K → 20M
9:27/mi
12:50 split
21M
2:58:50
Rank: #16289 (-217)
20M → 21M
10:19/mi
10:19 split
35K· 21.75 mi
3:05:26
Rank: #16313 (-24)
21M → 35K
8:49/mi
6:36 split
23M
3:16:58
Rank: #16354 (-41)
35K → 23M
9:13/mi
11:32 split
24M
3:26:16
Rank: #16479 (-125)
23M → 24M
9:18/mi
9:18 split
40K· 24.85 mi
3:35:23
Rank: #16796 (-317)
24M → 40K
10:40/mi
9:07 split
25.2M
3:39:34
Rank: #16975 (-179)
40K → 25.2M
12:08/mi
4:11 split
Finish· 26.22 mi
3:48:42
Rank: #17024 (-49)
25.2M → Finish
8:58/mi
9:08 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:38
Pace8:08 /mi
2nd Half
Distance13.11 mi
Time2:02:04
Pace9:19 /mi
📊Positive Split: 14.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:5725:088:0525:08
8:05
-
10K
6.21 mi11:44:2949:408:0024:32
7:54
-0:11
15K
9.32 mi12:09:401:14:518:0225:11
8:06
+0:12
20K
12.43 mi12:35:511:41:028:0826:11
8:26
+0:20
Half
13.11 mi12:41:271:46:388:085:36
8:12
-0:14
25K
15.53 mi13:02:102:07:218:1220:43
8:33
+0:21
30K
18.64 mi13:30:302:35:418:2128:20
9:07
+0:34
20M
20.00 mi13:43:202:48:318:2612:50
9:27
+0:20
21M
21.00 mi13:53:392:58:508:3110:19
10:19
+0:52
35K
21.75 mi14:00:153:05:268:326:36
8:49
-1:30
23M
23.00 mi14:11:473:16:588:3411:32
9:13
+0:24
24M
24.00 mi14:21:053:26:168:369:18
9:18
+0:05
40K
24.85 mi14:30:123:35:238:409:07
10:40
+1:22
25.2M
25.20 mi14:34:233:39:348:434:11
12:08
+1:28
Finish
26.22 mi14:43:313:48:428:449:08
8:58
-3:10

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

7:54 /mi

Average Pace

8:44 /mi

Slowest Pace

12:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:20:27

35% of race

Time at Steady Pace

2:04:38

54% of race

Time at Slower Pace

23:37

10% of race

Average Pace: 8:43 /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 mi11:19:5725:088:0525:08
8:05
#14627
10K
6.21 mi11:44:2949:408:0024:32
7:54
#14341
15K
9.32 mi12:09:401:14:518:0225:11
8:06
#14571
20K
12.43 mi12:35:511:41:028:0826:11
8:26
#15093
Half
13.11 mi12:41:271:46:388:085:36
8:12
#15131
25K
15.53 mi13:02:102:07:218:1220:43
8:33
#15338
30K
18.64 mi13:30:302:35:418:2128:20
9:07
#15816
20M
20.00 mi13:43:202:48:318:2612:50
9:27
#16072
21M
21.00 mi13:53:392:58:508:3110:19
10:19
#16289
35K
21.75 mi14:00:153:05:268:326:36
8:49
#16313
23M
23.00 mi14:11:473:16:588:3411:32
9:13
#16354
24M
24.00 mi14:21:053:26:168:369:18
9:18
#16479
40K
24.85 mi14:30:123:35:238:409:07
10:40
#16796
25.2M
25.20 mi14:34:233:39:348:434:11
12:08
#16975
Finish
26.22 mi14:43:313:48:428:449:08
8:58
#17024
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi14627102051020515205(Top 57%)10395(Top 68%)10395(Top 731%)
10K6.21 mi3.10 mi14341+28610071+13410071+13413955(Top 52%)9924(Top 65%)9924(Top 698%)
15K9.32 mi3.11 mi14571-23010160-8910160-8915205(Top 57%)10395(Top 68%)10395(Top 731%)
20K12.43 mi3.11 mi15093-52210330-17010330-17016408(Top 62%)10797(Top 71%)10797(Top 759%)
Half13.11 mi0.68 mi15131-3810346-1610346-1615840(Top 59%)10628(Top 70%)10628(Top 747%)
25K15.53 mi2.42 mi15338-20710396-5010396-5016454(Top 62%)10737(Top 71%)10737(Top 755%)
30K18.64 mi3.11 mi15816-47810536-14010536-14017782(Top 67%)11247(Top 74%)11247(Top 791%)
20M20.00 mi1.36 mi16072-25610614-7810614-7818622(Top 70%)11506(Top 76%)11506(Top 809%)
21M21.00 mi1.00 mi16289-21710678-6410678-6419053(Top 72%)11657(Top 77%)11657(Top 820%)
35K21.75 mi0.75 mi16313-2410683-510683-517025(Top 64%)10717(Top 71%)10717(Top 754%)
23M23.00 mi1.25 mi16354-4110684-110684-117100(Top 64%)10735(Top 71%)10735(Top 755%)
24M24.00 mi1.00 mi16479-12510723-3910723-3918438(Top 69%)11284(Top 74%)11284(Top 794%)
40K24.85 mi0.85 mi16796-31710835-11210835-11221604(Top 81%)12634(Top 83%)12634(Top 888%)
25.2M25.20 mi0.35 mi16975-17910896-6110896-6122699(Top 85%)13170(Top 87%)13170(Top 926%)
Finish26.22 mi1.02 mi17024-4910911-1510911-1517771(Top 67%)10955(Top 72%)10955(Top 770%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21story building
+97ft-345ft

Overall

15205

Males

10395

M55-59

10395

5K→10K

3.1 - 6.2 mi

Top 52%
×5story building
+79ft-138ft

Overall

13955

Males

9924

M55-59

9924

10K→15K

6.2 - 9.3 mi

Top 57%
×3story building
+67ft-78ft

Overall

15205

Males

10395

M55-59

10395

15K→20K

9.3 - 12.4 mi

Top 62%
×5story building
+106ft-86ft

Overall

16408

Males

10797

M55-59

10797

20K→Half

12.4 - 13.1 mi

Top 59%
×2story building
+19ft-37ft

Overall

15840

Males

10628

M55-59

10628

Half→25K

13.1 - 15.5 mi

Top 62%
×4story building
+66ft-88ft

Overall

16454

Males

10737

M55-59

10737

25K→30K

15.5 - 18.6 mi

Top 67%
×9story building
+181ft-148ft

Overall

17782

Males

11247

M55-59

11247

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

18622

Males

11506

M55-59

11506

20M→21M

20.0 - 21.0 mi

Top 72%
×8story building
+106ft-24ft

Overall

19053

Males

11657

M55-59

11657

21M→35K

21.0 - 21.8 mi

Top 64%
×7story building
+17ft-86ft

Overall

17025

Males

10717

M55-59

10717

35K→23M

21.8 - 23.0 mi

Top 64%
×5story building
+23ft-63ft

Overall

17100

Males

10735

M55-59

10735

23M→24M

23.0 - 24.0 mi

Top 69%
×6story building
+12ft-82ft

Overall

18438

Males

11284

M55-59

11284

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

21604

Males

12634

M55-59

12634

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

22699

Males

13170

M55-59

13170

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2story building
+22ft-21ft

Overall

17771

Males

10955

M55-59

10955

Passing Analysis

Category:
Athletes Passed
1072
Passed By
3469
Net Change
-2397
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14627
5K → 10K461175+286#14627#14341
10K → 15K116346-230#14341#14571
15K → 20K68590-522#14571#15093
20K → Half2866-38#15093#15131
Half → 25K71278-207#15131#15338
25K → 30K64542-478#15338#15816
30K → 20M37293-256#15816#16072
20M → 21M31248-217#16072#16289
21M → 35K3963-24#16289#16313
35K → 23M66107-41#16313#16354
23M → 24M31156-125#16354#16479
24M → 40K12329-317#16479#16796
40K → 25.2M4183-179#16796#16975
25.2M → Finish4493-49#16975#17024
TOTALS10723469-2397
📊

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