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BOSTON MARATHON 2024

Bofei Cao

ON

Bib: 6420 M

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 11%
Gender (Male)
#0 / 14578
Top 18%
Division (M18-39)
#0 / 4849
Top 39%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
6:33/mi
20:20
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
6:39/mi
41:00
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
6:46/mi
1:02:01
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
6:55/mi
1:23:30
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
6:50/mi
1:28:10
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
6:58/mi
1:45:03
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
6:58/mi
2:06:41
↑ 181↓ 1480.2%
138 ft elev
20M
7:05/mi
2:16:19
↑ 64↓ 500.2%
148 ft elev
21M
7:35/mi
2:23:54
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
6:36/mi
2:28:50
↑ 17↓ 861.7%
156 ft elev
23M
7:01/mi
2:37:37
↑ 23↓ 630.6%
116 ft elev
24M
6:46/mi
2:44:23
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:03/mi
2:50:25
↓ 200.3%
20 ft elev
25.2M
7:44/mi
2:53:05
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
6:43/mi
2:59:56
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:10
Pace6:44 /mi
2nd Half
Distance13.11 mi
Time1:31:46
Pace7:00 /mi
📊Positive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:1520:206:3320:20
6:33
-
10K
6.21 mi10:45:5541:006:3620:40
6:39
+0:06
15K
9.32 mi11:06:561:02:016:3921:01
6:46
+0:07
20K
12.43 mi11:28:251:23:306:4321:29
6:55
+0:09
Half
13.11 mi11:33:051:28:106:444:40
6:50
-0:05
25K
15.53 mi11:49:581:45:036:4616:53
6:58
+0:08
30K
18.64 mi12:11:362:06:416:4821:38
6:58
0:00
20M
20.00 mi12:21:142:16:196:499:38
7:05
+0:07
21M
21.00 mi12:28:492:23:546:517:35
7:35
+0:30
35K
21.75 mi12:33:452:28:506:514:56
6:36
-0:59
23M
23.00 mi12:42:322:37:376:518:47
7:01
+0:25
24M
24.00 mi12:49:182:44:236:516:46
6:46
-0:15
40K
24.85 mi12:55:202:50:256:516:02
7:03
+0:17
25.2M
25.20 mi12:58:002:53:056:522:40
7:44
+0:41
Finish
26.22 mi13:04:512:59:566:526:51
6:43
-1:01

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

6:33 /mi

Average Pace

6:52 /mi

Slowest Pace

7:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:49:41

94% of race

Time at Steady Pace

7:35

4% of race

Time at Slower Pace

2:40

1% of race

Average Pace: 6:52 /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 mi10:25:1520:206:3320:20
6:33
#3588
10K
6.21 mi10:45:5541:006:3620:40
6:39
#3751
15K
9.32 mi11:06:561:02:016:3921:01
6:46
#3949
20K
12.43 mi11:28:251:23:306:4321:29
6:55
#4096
Half
13.11 mi11:33:051:28:106:444:40
6:50
#4125
25K
15.53 mi11:49:581:45:036:4616:53
6:58
#4077
30K
18.64 mi12:11:362:06:416:4821:38
6:58
#3686
20M
20.00 mi12:21:142:16:196:499:38
7:05
#3529
21M
21.00 mi12:28:492:23:546:517:35
7:35
#3422
35K
21.75 mi12:33:452:28:506:514:56
6:36
#3315
23M
23.00 mi12:42:322:37:376:518:47
7:01
#3151
24M
24.00 mi12:49:182:44:236:516:46
6:46
#3031
40K
24.85 mi12:55:202:50:256:516:02
7:03
#2951
25.2M
25.20 mi12:58:002:53:056:522:40
7:44
#2916
Finish
26.22 mi13:04:512:59:566:526:51
6:43
#2877
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3588340734074409(Top 17%)4111(Top 28%)4111(Top 85%)
10K6.21 mi3.10 mi3751-1633550-1433550-1433958(Top 15%)3726(Top 26%)3726(Top 77%)
15K9.32 mi3.11 mi3949-1983729-1793729-1794409(Top 17%)4111(Top 28%)4111(Top 85%)
20K12.43 mi3.11 mi4096-1473851-1223851-1224712(Top 18%)4329(Top 30%)4329(Top 89%)
Half13.11 mi0.68 mi4125-293878-273878-274723(Top 18%)4334(Top 30%)4334(Top 89%)
25K15.53 mi2.42 mi4077+483823+553823+554142(Top 16%)3811(Top 26%)3811(Top 79%)
30K18.64 mi3.11 mi3686+3913464+3593464+3592685(Top 11%)2517(Top 17%)2517(Top 52%)
20M20.00 mi1.36 mi3529+1573311+1533311+1532720(Top 11%)2510(Top 17%)2510(Top 52%)
21M21.00 mi1.00 mi3422+1073207+1043207+1042756(Top 11%)2498(Top 17%)2498(Top 52%)
35K21.75 mi0.75 mi3315+1073106+1013106+1011560(Top 6%)1463(Top 10%)1463(Top 30%)
23M23.00 mi1.25 mi3151+1642949+1572949+1572000(Top 8%)1830(Top 13%)1830(Top 38%)
24M24.00 mi1.00 mi3031+1202839+1102839+1101591(Top 6%)1467(Top 10%)1467(Top 30%)
40K24.85 mi0.85 mi2951+802758+812758+812026(Top 8%)1814(Top 12%)1814(Top 37%)
25.2M25.20 mi0.35 mi2916+352723+352723+352018(Top 8%)1786(Top 12%)1786(Top 37%)
Finish26.22 mi1.02 mi2877+392683+402683+402073(Top 8%)1809(Top 12%)1809(Top 37%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21story building
+97ft-345ft

Overall

4409

Males

4111

M18-39

4111

5K→10K

3.1 - 6.2 mi

Top 15%
×5story building
+79ft-138ft

Overall

3958

Males

3726

M18-39

3726

10K→15K

6.2 - 9.3 mi

Top 17%
×3story building
+67ft-78ft

Overall

4409

Males

4111

M18-39

4111

15K→20K

9.3 - 12.4 mi

Top 18%
×5story building
+106ft-86ft

Overall

4712

Males

4329

M18-39

4329

20K→Half

12.4 - 13.1 mi

Top 18%
×2story building
+19ft-37ft

Overall

4723

Males

4334

M18-39

4334

Half→25K

13.1 - 15.5 mi

Top 16%
×4story building
+66ft-88ft

Overall

4142

Males

3811

M18-39

3811

25K→30K

15.5 - 18.6 mi

Top 11%
×9story building
+181ft-148ft

Overall

2685

Males

2517

M18-39

2517

30K→20M

18.6 - 20.0 mi

Top 11%
×5story building
+64ft-50ft

Overall

2720

Males

2510

M18-39

2510

20M→21M

20.0 - 21.0 mi

Top 11%
×8story building
+106ft-24ft

Overall

2756

Males

2498

M18-39

2498

21M→35K

21.0 - 21.8 mi

Top 6%
×7story building
+17ft-86ft

Overall

1560

Males

1463

M18-39

1463

35K→23M

21.8 - 23.0 mi

Top 8%
×5story building
+23ft-63ft

Overall

2000

Males

1830

M18-39

1830

23M→24M

23.0 - 24.0 mi

Top 6%
×6story building
+12ft-82ft

Overall

1591

Males

1467

M18-39

1467

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2026

Males

1814

M18-39

1814

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

2018

Males

1786

M18-39

1786

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2story building
+22ft-21ft

Overall

2073

Males

1809

M18-39

1809

Passing Analysis

Category:
Athletes Passed
1759
Passed By
1048
Net Change
+711
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3588
5K → 10K93256-163#3588#3751
10K → 15K61259-198#3751#3949
15K → 20K108255-147#3949#4096
20K → Half2150-29#4096#4125
Half → 25K14799+48#4125#4077
25K → 30K41625+391#4077#3686
30K → 20M17720+157#3686#3529
20M → 21M13225+107#3529#3422
21M → 35K1081+107#3422#3315
35K → 23M17713+164#3315#3151
23M → 24M1222+120#3151#3031
24M → 40K899+80#3031#2951
40K → 25.2M449+35#2951#2916
25.2M → Finish6425+39#2916#2877
TOTALS17591048+711
📊

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