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BOSTON MARATHON 2024

Xiaoxiang Cao

Bib: 11454•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 29%
Gender (Male)
#0 / 14578
Top 41%
Masters (Masters Men)
#0 / 9729
Top 30%
Division (M45-49)
#0 / 2218
Top 41%
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
7:11/mi
22:18
↑ 97↓ 3451.5%
10K· 6.21 mi
7:11/mi
44:38
↑ 79↓ 1380.4%
15K· 9.32 mi
7:16/mi
1:07:13
↑ 67↓ 78
20K· 12.43 mi
7:32/mi
1:30:36
↑ 106↓ 860.1%
Half· 13.11 mi
7:36/mi
1:35:47
↑ 19↓ 370.5%
25K· 15.53 mi
7:50/mi
1:54:47
↑ 66↓ 880.2%
30K· 18.64 mi
8:01/mi
2:19:40
↑ 181↓ 1480.2%
20M
8:13/mi
2:30:50
↑ 64↓ 500.2%
21M
8:51/mi
2:39:41
↑ 106↓ 241.6%
35K· 21.75 mi
8:16/mi
2:45:52
↑ 17↓ 861.7%
23M
8:18/mi
2:56:16
↑ 23↓ 630.6%
24M
8:01/mi
3:04:17
↓ 821.3%
40K· 24.85 mi
7:57/mi
3:11:05
↓ 200.3%
25.2M
8:48/mi
3:14:07
↑ 13↓ 160.2%
Finish· 26.22 mi
7:50/mi
3:22:06
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:47
Pace7:18 /mi
2nd Half
Distance13.11 mi
Time1:46:19
Pace8:07 /mi
📊Positive Split: 11.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:1322:187:1122:18
7:11
-
10K
6.21 mi11:12:3344:387:1122:20
7:11
0:00
15K
9.32 mi11:35:081:07:137:1322:35
7:16
+0:05
20K
12.43 mi11:58:311:30:367:1723:23
7:32
+0:16
Half
13.11 mi12:03:421:35:477:185:11
7:36
+0:04
25K
15.53 mi12:22:421:54:477:2319:00
7:50
+0:14
30K
18.64 mi12:47:352:19:407:3024:53
8:01
+0:11
20M
20.00 mi12:58:452:30:507:3211:10
8:13
+0:12
21M
21.00 mi13:07:362:39:417:368:51
8:51
+0:38
35K
21.75 mi13:13:472:45:527:386:11
8:16
-0:35
23M
23.00 mi13:24:112:56:167:4010:24
8:18
+0:02
24M
24.00 mi13:32:123:04:177:418:01
8:01
-0:17
40K
24.85 mi13:39:003:11:057:416:48
7:57
-0:04
25.2M
25.20 mi13:42:023:14:077:423:02
8:48
+0:51
Finish
26.22 mi13:50:013:22:067:437:59
7:50
-0:58

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

7:11 /mi

Average Pace

7:43 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:35:47

47% of race

Time at Steady Pace

1:06:41

33% of race

Time at Slower Pace

39:38

20% of race

Average Pace: 7:42 /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 mi10:50:1322:187:1122:18
7:11
#8239
10K
6.21 mi11:12:3344:387:1122:20
7:11
#8018
15K
9.32 mi11:35:081:07:137:1322:35
7:16
#7953
20K
12.43 mi11:58:311:30:367:1723:23
7:32
#8032
Half
13.11 mi12:03:421:35:477:185:11
7:36
#8132
25K
15.53 mi12:22:421:54:477:2319:00
7:50
#8237
30K
18.64 mi12:47:352:19:407:3024:53
8:01
#8096
20M
20.00 mi12:58:452:30:507:3211:10
8:13
#8023
21M
21.00 mi13:07:362:39:417:368:51
8:51
#7935
35K
21.75 mi13:13:472:45:527:386:11
8:16
#7944
23M
23.00 mi13:24:112:56:167:4010:24
8:18
#7806
24M
24.00 mi13:32:123:04:177:418:01
8:01
#7676
40K
24.85 mi13:39:003:11:057:416:48
7:57
#7541
25.2M
25.20 mi13:42:023:14:077:423:02
8:48
#7456
Finish
26.22 mi13:50:013:22:067:437:59
7:50
#7406
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi8239695069507946(Top 31%)6688(Top 46%)6688(Top 302%)
10K6.21 mi3.10 mi8018+2216793+1576793+1577840(Top 31%)6647(Top 46%)6647(Top 300%)
15K9.32 mi3.11 mi7953+656733+606733+607946(Top 31%)6688(Top 46%)6688(Top 302%)
20K12.43 mi3.11 mi8032-796756-236756-238553(Top 33%)6924(Top 47%)6924(Top 312%)
Half13.11 mi0.68 mi8132-1006817-616817-619756(Top 38%)7539(Top 52%)7539(Top 340%)
25K15.53 mi2.42 mi8237-1056830-136830-139141(Top 36%)7046(Top 48%)7046(Top 318%)
30K18.64 mi3.11 mi8096+1416645+1856645+1857911(Top 31%)6160(Top 42%)6160(Top 278%)
20M20.00 mi1.36 mi8023+736551+946551+947910(Top 31%)5950(Top 41%)5950(Top 268%)
21M21.00 mi1.00 mi7935+886459+926459+927834(Top 31%)5714(Top 39%)5714(Top 258%)
35K21.75 mi0.75 mi7944-96432+276432+279307(Top 36%)6399(Top 44%)6399(Top 289%)
23M23.00 mi1.25 mi7806+1386287+1456287+1457375(Top 29%)5272(Top 36%)5272(Top 238%)
24M24.00 mi1.00 mi7676+1306177+1106177+1106715(Top 26%)4835(Top 33%)4835(Top 218%)
40K24.85 mi0.85 mi7541+1356054+1236054+1235556(Top 22%)4105(Top 28%)4105(Top 185%)
25.2M25.20 mi0.35 mi7456+855975+795975+795643(Top 22%)4088(Top 28%)4088(Top 184%)
Finish26.22 mi1.02 mi7406+505913+625913+627518(Top 29%)5158(Top 35%)5158(Top 233%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21story building
+97ft-345ft

Overall

7946

Males

6688

M45-49

6688

5K→10K

3.1 - 6.2 mi

Top 31%
×5story building
+79ft-138ft

Overall

7840

Males

6647

M45-49

6647

10K→15K

6.2 - 9.3 mi

Top 31%
×3story building
+67ft-78ft

Overall

7946

Males

6688

M45-49

6688

15K→20K

9.3 - 12.4 mi

Top 33%
×5story building
+106ft-86ft

Overall

8553

Males

6924

M45-49

6924

20K→Half

12.4 - 13.1 mi

Top 38%
×2story building
+19ft-37ft

Overall

9756

Males

7539

M45-49

7539

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

9141

Males

7046

M45-49

7046

25K→30K

15.5 - 18.6 mi

Top 31%
×9story building
+181ft-148ft

Overall

7911

Males

6160

M45-49

6160

30K→20M

18.6 - 20.0 mi

Top 31%
×5story building
+64ft-50ft

Overall

7910

Males

5950

M45-49

5950

20M→21M

20.0 - 21.0 mi

Top 31%
×8story building
+106ft-24ft

Overall

7834

Males

5714

M45-49

5714

21M→35K

21.0 - 21.8 mi

Top 36%
×7story building
+17ft-86ft

Overall

9307

Males

6399

M45-49

6399

35K→23M

21.8 - 23.0 mi

Top 29%
×5story building
+23ft-63ft

Overall

7375

Males

5272

M45-49

5272

23M→24M

23.0 - 24.0 mi

Top 26%
×6story building
+12ft-82ft

Overall

6715

Males

4835

M45-49

4835

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

5556

Males

4105

M45-49

4105

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

5643

Males

4088

M45-49

4088

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2story building
+22ft-21ft

Overall

7518

Males

5158

M45-49

5158

Passing Analysis

Category:
Athletes Passed
2295
Passed By
1462
Net Change
+833
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8239
5K → 10K350129+221#8239#8018
10K → 15K205140+65#8018#7953
15K → 20K149228-79#7953#8032
20K → Half8108-100#8032#8132
Half → 25K162267-105#8132#8237
25K → 30K332191+141#8237#8096
30K → 20M15885+73#8096#8023
20M → 21M15870+88#8023#7935
21M → 35K6776-9#7935#7944
35K → 23M20163+138#7944#7806
23M → 24M15323+130#7806#7676
24M → 40K15621+135#7676#7541
40K → 25.2M949+85#7541#7456
25.2M → Finish10252+50#7456#7406
TOTALS22951462+833
📊

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