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BOSTON MARATHON 2024

Zhao Changjiang

Bib: 11167•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Division (M50-54)
#0 / 1935
Race Day Weather
55°/45°F
scattered clouds

⏱️ 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
7:08/mi
22:09
↑ 97↓ 3451.5%
10K· 6.21 mi
7:15/mi
44:39
↑ 79↓ 1380.4%
15K· 9.32 mi
7:35/mi
1:08:14
↑ 67↓ 78
20K· 12.43 mi
8:19/mi
1:34:03
↑ 106↓ 860.1%
Half· 13.11 mi
8:26/mi
1:39:48
↑ 19↓ 370.5%
25K· 15.53 mi
9:35/mi
2:03:03
↑ 66↓ 880.2%
30K· 18.64 mi
10:03/mi
2:34:16
↑ 181↓ 1480.2%
20M
12:12/mi
2:50:51
↑ 64↓ 500.2%
21M
10:45/mi
3:01:36
↑ 106↓ 241.6%
35K· 21.75 mi
9:36/mi
3:08:47
↑ 17↓ 861.7%
23M
10:30/mi
3:21:56
↑ 23↓ 630.6%
24M
9:42/mi
3:31:38
↓ 821.3%
40K· 24.85 mi
9:34/mi
3:39:49
↓ 200.3%
25.2M
10:21/mi
3:43:23
↑ 13↓ 160.2%
Finish· 26.22 mi
9:24/mi
3:52:58
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:48
Pace7:37 /mi
2nd Half
Distance13.11 mi
Time2:13:10
Pace10:10 /mi
📊Positive Split: 33.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:1222:097:0822:09
7:08
-
10K
6.21 mi11:12:4244:397:1122:30
7:15
+0:07
15K
9.32 mi11:36:171:08:147:1923:35
7:35
+0:20
20K
12.43 mi12:02:061:34:037:3425:49
8:19
+0:44
Half
13.11 mi12:07:511:39:487:375:45
8:26
+0:07
25K
15.53 mi12:31:062:03:037:5523:15
9:35
+1:09
30K
18.64 mi13:02:192:34:168:1731:13
10:03
+0:28
20M
20.00 mi13:18:542:50:518:3316:35
12:12
+2:09
21M
21.00 mi13:29:393:01:368:3910:45
10:45
-1:27
35K
21.75 mi13:36:503:08:478:417:11
9:36
-1:09
23M
23.00 mi13:49:593:21:568:4713:09
10:30
+0:54
24M
24.00 mi13:59:413:31:388:499:42
9:42
-0:48
40K
24.85 mi14:07:523:39:498:518:11
9:34
-0:08
25.2M
25.20 mi14:11:263:43:238:523:34
10:21
+0:47
Finish
26.22 mi14:21:013:52:588:549:35
9:24
-0:57

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

7:08 /mi

Average Pace

8:54 /mi

Slowest Pace

12:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:39:48

43% of race

Time at Steady Pace

1:29:07

38% of race

Time at Slower Pace

44:03

19% of race

Average Pace: 8:53 /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 mi10:50:1222:097:0822:09
7:08
#7871
10K
6.21 mi11:12:4244:397:1122:30
7:15
#8041
15K
9.32 mi11:36:171:08:147:1923:35
7:35
#8771
20K
12.43 mi12:02:061:34:037:3425:49
8:19
#10153
Half
13.11 mi12:07:511:39:487:375:45
8:26
#10438
25K
15.53 mi12:31:062:03:037:5523:15
9:35
#12132
30K
18.64 mi13:02:192:34:168:1731:13
10:03
#13452
20M
20.00 mi13:18:542:50:518:3316:35
12:12
#14630
21M
21.00 mi13:29:393:01:368:3910:45
10:45
#14731
35K
21.75 mi13:36:503:08:478:417:11
9:36
#14799
23M
23.00 mi13:49:593:21:568:4713:09
10:30
#14978
24M
24.00 mi13:59:413:31:388:499:42
9:42
#14996
40K
24.85 mi14:07:523:39:498:518:11
9:34
#14897
25.2M
25.20 mi14:11:263:43:238:523:34
10:21
#14834
Finish
26.22 mi14:21:013:52:588:549:35
9:24
#14890
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi78716745674510355(Top 41%)7974(Top 55%)7974(Top 412%)
10K6.21 mi3.10 mi8041-1706810-656810-658227(Top 32%)6888(Top 47%)6888(Top 356%)
15K9.32 mi3.11 mi8771-7307217-4077217-40710355(Top 41%)7974(Top 55%)7974(Top 412%)
20K12.43 mi3.11 mi10153-13827899-6827899-68213763(Top 54%)9450(Top 65%)9450(Top 488%)
Half13.11 mi0.68 mi10438-2858029-1308029-13015273(Top 60%)10036(Top 69%)10036(Top 519%)
25K15.53 mi2.42 mi12132-16948767-7388767-73817821(Top 70%)11064(Top 76%)11064(Top 572%)
30K18.64 mi3.11 mi13452-13209253-4869253-48617493(Top 68%)10671(Top 73%)10671(Top 551%)
20M20.00 mi1.36 mi14630-11789693-4409693-44021691(Top 85%)12544(Top 86%)12544(Top 648%)
21M21.00 mi1.00 mi14731-1019683+109683+1015615(Top 61%)9460(Top 65%)9460(Top 489%)
35K21.75 mi0.75 mi14799-689675+89675+815833(Top 62%)9540(Top 65%)9540(Top 493%)
23M23.00 mi1.25 mi14978-1799713-389713-3817050(Top 67%)10077(Top 69%)10077(Top 521%)
24M24.00 mi1.00 mi14996-189673+409673+4015254(Top 60%)9137(Top 63%)9137(Top 472%)
40K24.85 mi0.85 mi14897+999593+809593+8013383(Top 52%)8125(Top 56%)8125(Top 420%)
25.2M25.20 mi0.35 mi14834+639550+439550+4312226(Top 48%)7497(Top 51%)7497(Top 387%)
Finish26.22 mi1.02 mi14890-569539+119539+1116086(Top 63%)9498(Top 65%)9498(Top 491%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21story building
+97ft-345ft

Overall

10355

Males

7974

M50-54

7974

5K→10K

3.1 - 6.2 mi

Top 32%
×5story building
+79ft-138ft

Overall

8227

Males

6888

M50-54

6888

10K→15K

6.2 - 9.3 mi

Top 41%
×3story building
+67ft-78ft

Overall

10355

Males

7974

M50-54

7974

15K→20K

9.3 - 12.4 mi

Top 54%
×5story building
+106ft-86ft

Overall

13763

Males

9450

M50-54

9450

20K→Half

12.4 - 13.1 mi

Top 60%
×2story building
+19ft-37ft

Overall

15273

Males

10036

M50-54

10036

Half→25K

13.1 - 15.5 mi

Top 70%
×4story building
+66ft-88ft

Overall

17821

Males

11064

M50-54

11064

25K→30K

15.5 - 18.6 mi

Top 68%
×9story building
+181ft-148ft

Overall

17493

Males

10671

M50-54

10671

30K→20M

18.6 - 20.0 mi

Top 85%
×5story building
+64ft-50ft

Overall

21691

Males

12544

M50-54

12544

20M→21M

20.0 - 21.0 mi

Top 61%
×8story building
+106ft-24ft

Overall

15615

Males

9460

M50-54

9460

21M→35K

21.0 - 21.8 mi

Top 62%
×7story building
+17ft-86ft

Overall

15833

Males

9540

M50-54

9540

35K→23M

21.8 - 23.0 mi

Top 67%
×5story building
+23ft-63ft

Overall

17050

Males

10077

M50-54

10077

23M→24M

23.0 - 24.0 mi

Top 60%
×6story building
+12ft-82ft

Overall

15254

Males

9137

M50-54

9137

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

13383

Males

8125

M50-54

8125

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

12226

Males

7497

M50-54

7497

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2story building
+22ft-21ft

Overall

16086

Males

9498

M50-54

9498

Passing Analysis

Category:
Athletes Passed
939
Passed By
7956
Net Change
-7019
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7871
5K → 10K166336-170#7871#8041
10K → 15K41771-730#8041#8771
15K → 20K311411-1382#8771#10153
20K → Half5290-285#10153#10438
Half → 25K301724-1694#10438#12132
25K → 30K531373-1320#12132#13452
30K → 20M101188-1178#13452#14630
20M → 21M86187-101#14630#14731
21M → 35K64132-68#14731#14799
35K → 23M77256-179#14799#14978
23M → 24M91109-18#14978#14996
24M → 40K13940+99#14996#14897
40K → 25.2M7815+63#14897#14834
25.2M → Finish68124-56#14834#14890
TOTALS9397956-7019
📊

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