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BOSTON MARATHON 2024

Changxiong Jiang

Bib: 11357•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 49%
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
7:48/mi
24:14
↑ 97↓ 3451.5%
10K· 6.21 mi
7:54/mi
48:46
↑ 79↓ 1380.4%
15K· 9.32 mi
7:46/mi
1:12:55
↑ 67↓ 78
20K· 12.43 mi
8:03/mi
1:37:55
↑ 106↓ 860.1%
Half· 13.11 mi
8:07/mi
1:43:27
↑ 19↓ 370.5%
25K· 15.53 mi
8:03/mi
2:02:57
↑ 66↓ 880.2%
30K· 18.64 mi
8:29/mi
2:29:17
↑ 181↓ 1480.2%
20M
8:35/mi
2:40:57
↑ 64↓ 500.2%
21M
9:10/mi
2:50:07
↑ 106↓ 241.6%
35K· 21.75 mi
9:40/mi
2:57:21
↑ 17↓ 861.7%
23M
13:27/mi
3:14:12
↑ 23↓ 630.6%
24M
8:41/mi
3:22:53
↓ 821.3%
40K· 24.85 mi
8:39/mi
3:30:17
↓ 200.3%
25.2M
9:34/mi
3:33:35
↑ 13↓ 160.2%
Finish· 26.22 mi
8:07/mi
3:41:51
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:27
Pace7:53 /mi
2nd Half
Distance13.11 mi
Time1:58:24
Pace9:02 /mi
📊Positive Split: 14.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:5324:147:4824:14
7:48
-
10K
6.21 mi11:16:2548:467:5124:32
7:54
+0:06
15K
9.32 mi11:40:341:12:557:4924:09
7:46
-0:08
20K
12.43 mi12:05:341:37:557:5325:00
8:03
+0:17
Half
13.11 mi12:11:061:43:277:535:32
8:07
+0:04
25K
15.53 mi12:30:362:02:577:5519:30
8:03
-0:04
30K
18.64 mi12:56:562:29:178:0026:20
8:29
+0:26
20M
20.00 mi13:08:362:40:578:0311:40
8:35
+0:06
21M
21.00 mi13:17:462:50:078:069:10
9:10
+0:35
35K
21.75 mi13:25:002:57:218:097:14
9:40
+0:30
23M
23.00 mi13:41:513:14:128:2716:51
13:27
+3:47
24M
24.00 mi13:50:323:22:538:278:41
8:41
-4:46
40K
24.85 mi13:57:563:30:178:287:24
8:39
-0:02
25.2M
25.20 mi14:01:143:33:358:293:18
9:34
+0:55
Finish
26.22 mi14:09:303:41:518:288:16
8:07
-1:27

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

7:46 /mi

Average Pace

8:28 /mi

Slowest Pace

13:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

24:09

11% of race

Time at Steady Pace

2:50:19

77% of race

Time at Slower Pace

27:23

12% of race

Average Pace: 8:28 /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 mi10:51:5324:147:4824:14
7:48
#13089
10K
6.21 mi11:16:2548:467:5124:32
7:54
#13219
15K
9.32 mi11:40:341:12:557:4924:09
7:46
#12708
20K
12.43 mi12:05:341:37:557:5325:00
8:03
#12491
Half
13.11 mi12:11:061:43:277:535:32
8:07
#12526
25K
15.53 mi12:30:362:02:577:5519:30
8:03
#12088
30K
18.64 mi12:56:562:29:178:0026:20
8:29
#11716
20M
20.00 mi13:08:362:40:578:0311:40
8:35
#11536
21M
21.00 mi13:17:462:50:078:069:10
9:10
#11340
35K
21.75 mi13:25:002:57:218:097:14
9:40
#11537
23M
23.00 mi13:41:513:14:128:2716:51
13:27
#12968
24M
24.00 mi13:50:323:22:538:278:41
8:41
#12842
40K
24.85 mi13:57:563:30:178:287:24
8:39
#12624
25.2M
25.20 mi14:01:143:33:358:293:18
9:34
#12545
Finish
26.22 mi14:09:303:41:518:288:16
8:07
#12400
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi130899282928211709(Top 46%)8608(Top 59%)8608(Top 445%)
10K6.21 mi3.10 mi13219-1309336-549336-5413394(Top 52%)9378(Top 64%)9378(Top 485%)
15K9.32 mi3.11 mi12708+5119094+2429094+24211709(Top 46%)8608(Top 59%)8608(Top 445%)
20K12.43 mi3.11 mi12491+2178984+1108984+11012143(Top 48%)8719(Top 60%)8719(Top 451%)
Half13.11 mi0.68 mi12526-358986-28986-213413(Top 52%)9225(Top 63%)9225(Top 477%)
25K15.53 mi2.42 mi12088+4388751+2358751+23510449(Top 41%)7721(Top 53%)7721(Top 399%)
30K18.64 mi3.11 mi11716+3728495+2568495+25610527(Top 41%)7557(Top 52%)7557(Top 391%)
20M20.00 mi1.36 mi11536+1808359+1368359+1369906(Top 39%)6993(Top 48%)6993(Top 361%)
21M21.00 mi1.00 mi11340+1968203+1568203+1569348(Top 37%)6459(Top 44%)6459(Top 334%)
35K21.75 mi0.75 mi11537-1978261-588261-5816056(Top 63%)9636(Top 66%)9636(Top 498%)
23M23.00 mi1.25 mi12968-14318821-5608821-56023161(Top 91%)13199(Top 91%)13199(Top 682%)
24M24.00 mi1.00 mi12842+1268727+948727+9410489(Top 41%)6792(Top 47%)6792(Top 351%)
40K24.85 mi0.85 mi12624+2188577+1508577+1509145(Top 36%)5976(Top 41%)5976(Top 309%)
25.2M25.20 mi0.35 mi12545+798529+488529+489003(Top 35%)5839(Top 40%)5839(Top 302%)
Finish26.22 mi1.02 mi12400+1458422+1078422+1079253(Top 36%)6075(Top 42%)6075(Top 314%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21story building
+97ft-345ft

Overall

11709

Males

8608

M50-54

8608

5K→10K

3.1 - 6.2 mi

Top 52%
×5story building
+79ft-138ft

Overall

13394

Males

9378

M50-54

9378

10K→15K

6.2 - 9.3 mi

Top 46%
×3story building
+67ft-78ft

Overall

11709

Males

8608

M50-54

8608

15K→20K

9.3 - 12.4 mi

Top 48%
×5story building
+106ft-86ft

Overall

12143

Males

8719

M50-54

8719

20K→Half

12.4 - 13.1 mi

Top 52%
×2story building
+19ft-37ft

Overall

13413

Males

9225

M50-54

9225

Half→25K

13.1 - 15.5 mi

Top 41%
×4story building
+66ft-88ft

Overall

10449

Males

7721

M50-54

7721

25K→30K

15.5 - 18.6 mi

Top 41%
×9story building
+181ft-148ft

Overall

10527

Males

7557

M50-54

7557

30K→20M

18.6 - 20.0 mi

Top 39%
×5story building
+64ft-50ft

Overall

9906

Males

6993

M50-54

6993

20M→21M

20.0 - 21.0 mi

Top 37%
×8story building
+106ft-24ft

Overall

9348

Males

6459

M50-54

6459

21M→35K

21.0 - 21.8 mi

Top 63%
×7story building
+17ft-86ft

Overall

16056

Males

9636

M50-54

9636

35K→23M

21.8 - 23.0 mi

Top 91%
×5story building
+23ft-63ft

Overall

23161

Males

13199

M50-54

13199

23M→24M

23.0 - 24.0 mi

Top 41%
×6story building
+12ft-82ft

Overall

10489

Males

6792

M50-54

6792

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

9145

Males

5976

M50-54

5976

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9003

Males

5839

M50-54

5839

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2story building
+22ft-21ft

Overall

9253

Males

6075

M50-54

6075

Passing Analysis

Category:
Athletes Passed
3332
Passed By
2643
Net Change
+689
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13089
5K → 10K251381-130#13089#13219
10K → 15K55039+511#13219#12708
15K → 20K354137+217#12708#12491
20K → Half3570-35#12491#12526
Half → 25K48143+438#12526#12088
25K → 30K489117+372#12088#11716
30K → 20M23555+180#11716#11536
20M → 21M24347+196#11536#11340
21M → 35K39236-197#11340#11537
35K → 23M151446-1431#11537#12968
23M → 24M15731+126#12968#12842
24M → 40K22810+218#12842#12624
40K → 25.2M9112+79#12624#12545
25.2M → Finish16419+145#12545#12400
TOTALS33322643+689
📊

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