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BOSTON MARATHON 2024

Chunhua Jiang

Bib: 14609•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Division (M65-69)
#0 / 617
Top 28%
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
7:45/mi
24:05
↑ 97↓ 3451.5%
10K· 6.21 mi
7:55/mi
48:40
↑ 79↓ 1380.4%
15K· 9.32 mi
7:54/mi
1:13:12
↑ 67↓ 78
20K· 12.43 mi
8:19/mi
1:39:01
↑ 106↓ 860.1%
Half· 13.11 mi
8:10/mi
1:44:35
↑ 19↓ 370.5%
25K· 15.53 mi
9:12/mi
2:06:54
↑ 66↓ 880.2%
30K· 18.64 mi
10:11/mi
2:38:33
↑ 181↓ 1480.2%
20M
10:48/mi
2:53:14
↑ 64↓ 500.2%
21M
11:45/mi
3:04:59
↑ 106↓ 241.6%
35K· 21.75 mi
13:29/mi
3:15:04
↑ 17↓ 861.7%
23M
11:56/mi
3:30:01
↑ 23↓ 630.6%
24M
10:18/mi
3:40:19
↓ 821.3%
40K· 24.85 mi
9:55/mi
3:48:48
↓ 200.3%
25.2M
11:16/mi
3:52:41
↑ 13↓ 160.2%
Finish· 26.22 mi
9:26/mi
4:02:18
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:35
Pace7:59 /mi
2nd Half
Distance13.11 mi
Time2:17:43
Pace10:30 /mi
📊Positive Split: 31.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:3324:057:4524:05
7:45
-
10K
6.21 mi11:20:0848:407:5024:35
7:55
+0:10
15K
9.32 mi11:44:401:13:127:5124:32
7:54
-0:01
20K
12.43 mi12:10:291:39:017:5825:49
8:19
+0:25
Half
13.11 mi12:16:031:44:357:595:34
8:10
-0:09
25K
15.53 mi12:38:222:06:548:1022:19
9:12
+1:02
30K
18.64 mi13:10:012:38:338:3031:39
10:11
+0:59
20M
20.00 mi13:24:422:53:148:4014:41
10:48
+0:37
21M
21.00 mi13:36:273:04:598:4911:45
11:45
+0:57
35K
21.75 mi13:46:323:15:048:5810:05
13:29
+1:44
23M
23.00 mi14:01:293:30:019:0814:57
11:56
-1:33
24M
24.00 mi14:11:473:40:199:1110:18
10:18
-1:38
40K
24.85 mi14:20:163:48:489:128:29
9:55
-0:23
25.2M
25.20 mi14:24:093:52:419:143:53
11:16
+1:21
Finish
26.22 mi14:33:464:02:189:159:37
9:26
-1:50

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

9:15 /mi

Slowest Pace

13:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:35

43% of race

Time at Steady Pace

1:22:22

34% of race

Time at Slower Pace

55:21

23% of race

Average Pace: 9:14 /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 mi10:55:3324:057:4524:05
7:45
#12719
10K
6.21 mi11:20:0848:407:5024:35
7:55
#13095
15K
9.32 mi11:44:401:13:127:5124:32
7:54
#12934
20K
12.43 mi12:10:291:39:017:5825:49
8:19
#13155
Half
13.11 mi12:16:031:44:357:595:34
8:10
#13189
25K
15.53 mi12:38:222:06:548:1022:19
9:12
#13851
30K
18.64 mi13:10:012:38:338:3031:39
10:11
#14834
20M
20.00 mi13:24:422:53:148:4014:41
10:48
#15294
21M
21.00 mi13:36:273:04:598:4911:45
11:45
#15589
35K
21.75 mi13:46:323:15:048:5810:05
13:29
#16266
23M
23.00 mi14:01:293:30:019:0814:57
11:56
#16710
24M
24.00 mi14:11:473:40:199:1110:18
10:18
#16748
40K
24.85 mi14:20:163:48:489:128:29
9:55
#16653
25.2M
25.20 mi14:24:093:52:419:143:53
11:16
#16619
Finish
26.22 mi14:33:464:02:189:159:37
9:26
#16555
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi127199142914212648(Top 50%)9028(Top 62%)9028(Top 1463%)
10K6.21 mi3.10 mi13095-3769279-1379279-13713530(Top 53%)9434(Top 65%)9434(Top 1529%)
15K9.32 mi3.11 mi12934+1619188+919188+9112648(Top 50%)9028(Top 62%)9028(Top 1463%)
20K12.43 mi3.11 mi13155-2219255-679255-6713766(Top 54%)9453(Top 65%)9453(Top 1532%)
Half13.11 mi0.68 mi13189-349256-19256-113771(Top 54%)9408(Top 65%)9408(Top 1525%)
25K15.53 mi2.42 mi13851-6629514-2589514-25816418(Top 64%)10433(Top 72%)10433(Top 1691%)
30K18.64 mi3.11 mi14834-9839822-3089822-30817941(Top 70%)10891(Top 75%)10891(Top 1765%)
20M20.00 mi1.36 mi15294-4609959-1379959-13718792(Top 74%)11137(Top 76%)11137(Top 1805%)
21M21.00 mi1.00 mi15589-29510038-7910038-7918227(Top 71%)10746(Top 74%)10746(Top 1742%)
35K21.75 mi0.75 mi16266-67710302-26410302-26423771(Top 93%)13536(Top 93%)13536(Top 2194%)
23M23.00 mi1.25 mi16710-44410470-16810470-16820584(Top 81%)11854(Top 81%)11854(Top 1921%)
24M24.00 mi1.00 mi16748-3810456+1410456+1417265(Top 68%)10138(Top 70%)10138(Top 1643%)
40K24.85 mi0.85 mi16653+9510381+7510381+7514721(Top 58%)8811(Top 60%)8811(Top 1428%)
25.2M25.20 mi0.35 mi16619+3410353+2810353+2815330(Top 60%)9112(Top 63%)9112(Top 1477%)
Finish26.22 mi1.02 mi16555+6410298+5510298+5516233(Top 64%)9573(Top 66%)9573(Top 1552%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21story building
+97ft-345ft

Overall

12648

Males

9028

M65-69

9028

5K→10K

3.1 - 6.2 mi

Top 53%
×5story building
+79ft-138ft

Overall

13530

Males

9434

M65-69

9434

10K→15K

6.2 - 9.3 mi

Top 50%
×3story building
+67ft-78ft

Overall

12648

Males

9028

M65-69

9028

15K→20K

9.3 - 12.4 mi

Top 54%
×5story building
+106ft-86ft

Overall

13766

Males

9453

M65-69

9453

20K→Half

12.4 - 13.1 mi

Top 54%
×2story building
+19ft-37ft

Overall

13771

Males

9408

M65-69

9408

Half→25K

13.1 - 15.5 mi

Top 64%
×4story building
+66ft-88ft

Overall

16418

Males

10433

M65-69

10433

25K→30K

15.5 - 18.6 mi

Top 70%
×9story building
+181ft-148ft

Overall

17941

Males

10891

M65-69

10891

30K→20M

18.6 - 20.0 mi

Top 74%
×5story building
+64ft-50ft

Overall

18792

Males

11137

M65-69

11137

20M→21M

20.0 - 21.0 mi

Top 71%
×8story building
+106ft-24ft

Overall

18227

Males

10746

M65-69

10746

21M→35K

21.0 - 21.8 mi

Top 93%
×7story building
+17ft-86ft

Overall

23771

Males

13536

M65-69

13536

35K→23M

21.8 - 23.0 mi

Top 81%
×5story building
+23ft-63ft

Overall

20584

Males

11854

M65-69

11854

23M→24M

23.0 - 24.0 mi

Top 68%
×6story building
+12ft-82ft

Overall

17265

Males

10138

M65-69

10138

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

14721

Males

8811

M65-69

8811

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

15330

Males

9112

M65-69

9112

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2story building
+22ft-21ft

Overall

16233

Males

9573

M65-69

9573

Passing Analysis

Category:
Athletes Passed
1308
Passed By
5144
Net Change
-3836
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12719
5K → 10K159535-376#12719#13095
10K → 15K290129+161#13095#12934
15K → 20K205426-221#12934#13155
20K → Half4781-34#13155#13189
Half → 25K73735-662#13189#13851
25K → 30K761059-983#13851#14834
30K → 20M30490-460#14834#15294
20M → 21M42337-295#15294#15589
21M → 35K13690-677#15589#16266
35K → 23M26470-444#16266#16710
23M → 24M66104-38#16710#16748
24M → 40K12530+95#16748#16653
40K → 25.2M5117+34#16653#16619
25.2M → Finish10541+64#16619#16555
TOTALS13085144-3836
📊

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