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BOSTON MARATHON 2024

Hongzhi Cai

Bib: 28205•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Division (M60-64)
#0 / 1173
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:32
Rank: #19526
Start → 5K
27:32 | 8:52/mi
10K· 6.21 mi
55:11
Rank: #19396 (+130)
5K → 10K
27:39 | 8:54/mi
15K· 9.32 mi
1:23:48
Rank: #19522 (-126)
10K → 15K
28:37 | 9:13/mi
20K· 12.43 mi
1:53:06
Rank: #19379 (+143)
15K → 20K
29:18 | 9:26/mi
Half· 13.11 mi
1:59:07
Rank: #19285 (+94)
20K → Half
6:01 | 8:49/mi
25K· 15.53 mi
2:22:24
Rank: #19025 (+260)
Half → 25K
23:17 | 9:36/mi
30K· 18.64 mi
2:53:22
Rank: #18652 (+373)
25K → 30K
30:58 | 9:58/mi
20M
3:07:00
Rank: #18486 (+166)
30K → 20M
13:38 | 10:02/mi
21M
3:17:45
Rank: #18297 (+189)
20M → 21M
10:45 | 10:45/mi
35K· 21.75 mi
3:24:53
Rank: #18184 (+113)
21M → 35K
7:08 | 9:32/mi
23M
3:37:27
Rank: #17987 (+197)
35K → 23M
12:34 | 10:02/mi
24M
3:47:35
Rank: #17925 (+62)
23M → 24M
10:08 | 10:08/mi
40K· 24.85 mi
3:56:21
Rank: #17827 (+98)
24M → 40K
8:46 | 10:15/mi
25.2M
4:00:13
Rank: #17782 (+45)
40K → 25.2M
3:52 | 11:13/mi
Finish· 26.22 mi
4:09:51
Rank: #17687 (+95)
25.2M → Finish
9:38 | 9:27/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:07
Pace9:05 /mi
2nd Half
Distance13.11 mi
Time2:10:44
Pace9:58 /mi
📊Positive Split: 9.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:1027:328:5227:32
8:52
-
10K
6.21 mi12:10:4955:118:5327:39
8:54
+0:02
15K
9.32 mi12:39:261:23:488:5928:37
9:13
+0:19
20K
12.43 mi13:08:441:53:069:0629:18
9:26
+0:13
Half
13.11 mi13:14:451:59:079:056:01
8:49
-0:37
25K
15.53 mi13:38:022:22:249:1023:17
9:36
+0:47
30K
18.64 mi14:09:002:53:229:1830:58
9:58
+0:22
20M
20.00 mi14:22:383:07:009:2113:38
10:02
+0:04
21M
21.00 mi14:33:233:17:459:2510:45
10:45
+0:43
35K
21.75 mi14:40:313:24:539:257:08
9:32
-1:13
23M
23.00 mi14:53:053:37:279:2712:34
10:02
+0:30
24M
24.00 mi15:03:133:47:359:2910:08
10:08
+0:06
40K
24.85 mi15:11:593:56:219:318:46
10:15
+0:07
25.2M
25.20 mi15:15:514:00:139:323:52
11:13
+0:58
Finish
26.22 mi15:25:294:09:519:329:38
9:27
-1:46

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

8:49 /mi

Average Pace

9:32 /mi

Slowest Pace

11:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:29:49

36% of race

Time at Steady Pace

1:09:21

28% of race

Time at Slower Pace

1:30:41

36% of race

Average Pace: 9:32 /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 mi11:43:1027:328:5227:32
8:52
#19526
10K
6.21 mi12:10:4955:118:5327:39
8:54
#19396
15K
9.32 mi12:39:261:23:488:5928:37
9:13
#19522
20K
12.43 mi13:08:441:53:069:0629:18
9:26
#19379
Half
13.11 mi13:14:451:59:079:056:01
8:49
#19285
25K
15.53 mi13:38:022:22:249:1023:17
9:36
#19025
30K
18.64 mi14:09:002:53:229:1830:58
9:58
#18652
20M
20.00 mi14:22:383:07:009:2113:38
10:02
#18486
21M
21.00 mi14:33:233:17:459:2510:45
10:45
#18297
35K
21.75 mi14:40:313:24:539:257:08
9:32
#18184
23M
23.00 mi14:53:053:37:279:2712:34
10:02
#17987
24M
24.00 mi15:03:133:47:359:2910:08
10:08
#17925
40K
24.85 mi15:11:593:56:219:318:46
10:15
#17827
25.2M
25.20 mi15:15:514:00:139:323:52
11:13
#17782
Finish
26.22 mi15:25:294:09:519:329:38
9:27
#17687
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi19526118441184419757(Top 77%)12055(Top 83%)12055(Top 1028%)
10K6.21 mi3.10 mi19396+13011823+2111823+2119330(Top 76%)11823(Top 81%)11823(Top 1008%)
15K9.32 mi3.11 mi19522-12611896-7311896-7319757(Top 77%)12055(Top 83%)12055(Top 1028%)
20K12.43 mi3.11 mi19379+14311834+6211834+6218967(Top 74%)11674(Top 80%)11674(Top 995%)
Half13.11 mi0.68 mi19285+9411783+5111783+5117402(Top 68%)10906(Top 75%)10906(Top 930%)
25K15.53 mi2.42 mi19025+26011666+11711666+11717875(Top 70%)11083(Top 76%)11083(Top 945%)
30K18.64 mi3.11 mi18652+37311423+24311423+24317247(Top 68%)10561(Top 72%)10561(Top 900%)
20M20.00 mi1.36 mi18486+16611322+10111322+10116593(Top 65%)10051(Top 69%)10051(Top 857%)
21M21.00 mi1.00 mi18297+18911209+11311209+11315623(Top 61%)9468(Top 65%)9468(Top 807%)
35K21.75 mi0.75 mi18184+11311144+6511144+6515607(Top 61%)9434(Top 65%)9434(Top 804%)
23M23.00 mi1.25 mi17987+19711018+12611018+12615594(Top 61%)9354(Top 64%)9354(Top 797%)
24M24.00 mi1.00 mi17925+6210971+4710971+4716747(Top 66%)9896(Top 68%)9896(Top 844%)
40K24.85 mi0.85 mi17827+9810900+7110900+7115886(Top 62%)9412(Top 65%)9412(Top 802%)
25.2M25.20 mi0.35 mi17782+4510868+3210868+3215164(Top 59%)9028(Top 62%)9028(Top 770%)
Finish26.22 mi1.02 mi17687+9510799+6910799+6916310(Top 64%)9615(Top 66%)9615(Top 820%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21stories
+97ft-345ft

Overall

19757

Males

12055

M60-64

12055

5K→10K

3.1 - 6.2 mi

Top 76%
×5stories
+79ft-138ft

Overall

19330

Males

11823

M60-64

11823

10K→15K

6.2 - 9.3 mi

Top 77%
×3stories
+67ft-78ft

Overall

19757

Males

12055

M60-64

12055

15K→20K

9.3 - 12.4 mi

Top 74%
×5stories
+106ft-86ft

Overall

18967

Males

11674

M60-64

11674

20K→Half

12.4 - 13.1 mi

Top 68%
×2stories
+19ft-37ft

Overall

17402

Males

10906

M60-64

10906

Half→25K

13.1 - 15.5 mi

Top 70%
×4stories
+66ft-88ft

Overall

17875

Males

11083

M60-64

11083

25K→30K

15.5 - 18.6 mi

Top 68%
×9stories
+181ft-148ft

Overall

17247

Males

10561

M60-64

10561

30K→20M

18.6 - 20.0 mi

Top 65%
×5stories
+64ft-50ft

Overall

16593

Males

10051

M60-64

10051

20M→21M

20.0 - 21.0 mi

Top 61%
×8stories
+106ft-24ft

Overall

15623

Males

9468

M60-64

9468

21M→35K

21.0 - 21.8 mi

Top 61%
×7stories
+17ft-86ft

Overall

15607

Males

9434

M60-64

9434

35K→23M

21.8 - 23.0 mi

Top 61%
×5stories
+23ft-63ft

Overall

15594

Males

9354

M60-64

9354

23M→24M

23.0 - 24.0 mi

Top 66%
×6stories
+12ft-82ft

Overall

16747

Males

9896

M60-64

9896

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

15886

Males

9412

M60-64

9412

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

15164

Males

9028

M60-64

9028

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2stories
+22ft-21ft

Overall

16310

Males

9615

M60-64

9615

Passing Analysis

Category:
Athletes Passed
2779
Passed By
940
Net Change
+1839
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19526
5K → 10K318188+130#19526#19396
10K → 15K186312-126#19396#19522
15K → 20K306163+143#19522#19379
20K → Half962+94#19379#19285
Half → 25K32767+260#19285#19025
25K → 30K44168+373#19025#18652
30K → 20M19327+166#18652#18486
20M → 21M20516+189#18486#18297
21M → 35K1185+113#18297#18184
35K → 23M21518+197#18184#17987
23M → 24M9432+62#17987#17925
24M → 40K11618+98#17925#17827
40K → 25.2M538+45#17827#17782
25.2M → Finish11116+95#17782#17687
TOTALS2779940+1839
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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