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BOSTON MARATHON 2024

Zhiyuan Cai

Bib: 11222•M

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 15%
Gender (Male)
#0 / 14578
Top 24%
Masters (Masters Men)
#0 / 9729
Top 13%
Division (M45-49)
#0 / 2218
Top 16%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:41
Rank: #6903
Start → 5K
21:41 | 6:59/mi
10K· 6.21 mi
43:55
Rank: #7237 (-334)
5K → 10K
22:14 | 7:09/mi
15K· 9.32 mi
1:05:59
Rank: #7098 (+139)
10K → 15K
22:04 | 7:06/mi
20K· 12.43 mi
1:28:13
Rank: #6766 (+332)
15K → 20K
22:14 | 7:09/mi
Half· 13.11 mi
1:32:59
Rank: #6701 (+65)
20K → Half
4:46 | 6:59/mi
25K· 15.53 mi
1:50:21
Rank: #6357 (+344)
Half → 25K
17:22 | 7:10/mi
30K· 18.64 mi
2:12:41
Rank: #5674 (+683)
25K → 30K
22:20 | 7:11/mi
20M
2:22:23
Rank: #5346 (+328)
30K → 20M
9:42 | 7:08/mi
21M
2:29:58
Rank: #5075 (+271)
20M → 21M
7:35 | 7:35/mi
35K· 21.75 mi
2:35:00
Rank: #4893 (+182)
21M → 35K
5:02 | 6:44/mi
23M
2:43:45
Rank: #4564 (+329)
35K → 23M
8:45 | 6:59/mi
24M
2:50:34
Rank: #4308 (+256)
23M → 24M
6:49 | 6:49/mi
40K· 24.85 mi
2:56:32
Rank: #4101 (+207)
24M → 40K
5:58 | 6:59/mi
25.2M
2:59:12
Rank: #4027 (+74)
40K → 25.2M
2:40 | 7:44/mi
Finish· 26.22 mi
3:06:05
Rank: #3894 (+133)
25.2M → Finish
6:53 | 6:45/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:32:59
Pace7:06 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:33:06
Pace7:06 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:4721:416:5921:41
6:59
-
10K
6.21 mi11:11:0143:557:0422:14
7:09
+0:10
15K
9.32 mi11:33:051:05:597:0522:04
7:06
-0:03
20K
12.43 mi11:55:191:28:137:0622:14
7:09
+0:03
Half
13.11 mi12:00:051:32:597:064:46
6:59
-0:10
25K
15.53 mi12:17:271:50:217:0617:22
7:10
+0:11
30K
18.64 mi12:39:472:12:417:0722:20
7:11
+0:01
20M
20.00 mi12:49:292:22:237:079:42
7:08
-0:03
21M
21.00 mi12:57:042:29:587:087:35
7:35
+0:27
35K
21.75 mi13:02:062:35:007:085:02
6:44
-0:51
23M
23.00 mi13:10:512:43:457:078:45
6:59
+0:15
24M
24.00 mi13:17:402:50:347:066:49
6:49
-0:10
40K
24.85 mi13:23:382:56:327:065:58
6:59
+0:10
25.2M
25.20 mi13:26:182:59:127:072:40
7:44
+0:45
Finish
26.22 mi13:33:113:06:057:066:53
6:45
-0:59

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

6:44 /mi

Average Pace

7:06 /mi

Slowest Pace

7:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:55:50

94% of race

Time at Steady Pace

10:15

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:06 /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 mi10:48:4721:416:5921:41
6:59
#6903
10K
6.21 mi11:11:0143:557:0422:14
7:09
#7237
15K
9.32 mi11:33:051:05:597:0522:04
7:06
#7098
20K
12.43 mi11:55:191:28:137:0622:14
7:09
#6766
Half
13.11 mi12:00:051:32:597:064:46
6:59
#6701
25K
15.53 mi12:17:271:50:217:0617:22
7:10
#6357
30K
18.64 mi12:39:472:12:417:0722:20
7:11
#5674
20M
20.00 mi12:49:292:22:237:079:42
7:08
#5346
21M
21.00 mi12:57:042:29:587:087:35
7:35
#5075
35K
21.75 mi13:02:062:35:007:085:02
6:44
#4893
23M
23.00 mi13:10:512:43:457:078:45
6:59
#4564
24M
24.00 mi13:17:402:50:347:066:49
6:49
#4308
40K
24.85 mi13:23:382:56:327:065:58
6:59
#4101
25.2M
25.20 mi13:26:182:59:127:072:40
7:44
#4027
Finish
26.22 mi13:33:113:06:057:066:53
6:45
#3894
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi6903609860986794(Top 27%)5926(Top 41%)5926(Top 267%)
10K6.21 mi3.10 mi7237-3346309-2116309-2117613(Top 30%)6520(Top 45%)6520(Top 294%)
15K9.32 mi3.11 mi7098+1396183+1266183+1266794(Top 27%)5926(Top 41%)5926(Top 267%)
20K12.43 mi3.11 mi6766+3325946+2375946+2376116(Top 24%)5396(Top 37%)5396(Top 243%)
Half13.11 mi0.68 mi6701+655902+445902+445610(Top 22%)5031(Top 35%)5031(Top 227%)
25K15.53 mi2.42 mi6357+3445611+2915611+2915107(Top 20%)4551(Top 31%)4551(Top 205%)
30K18.64 mi3.11 mi5674+6835054+5575054+5573719(Top 15%)3390(Top 23%)3390(Top 153%)
20M20.00 mi1.36 mi5346+3284797+2574797+2572926(Top 11%)2683(Top 18%)2683(Top 121%)
21M21.00 mi1.00 mi5075+2714564+2334564+2332774(Top 11%)2516(Top 17%)2516(Top 113%)
35K21.75 mi0.75 mi4893+1824414+1504414+1502037(Top 8%)1884(Top 13%)1884(Top 85%)
23M23.00 mi1.25 mi4564+3294138+2764138+2761916(Top 7%)1765(Top 12%)1765(Top 80%)
24M24.00 mi1.00 mi4308+2563906+2323906+2321751(Top 7%)1605(Top 11%)1605(Top 72%)
40K24.85 mi0.85 mi4101+2073719+1873719+1871804(Top 7%)1635(Top 11%)1635(Top 74%)
25.2M25.20 mi0.35 mi4027+743651+683651+682027(Top 8%)1795(Top 12%)1795(Top 81%)
Finish26.22 mi1.02 mi3894+1333530+1213530+1212189(Top 9%)1905(Top 13%)1905(Top 86%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21stories
+97ft-345ft

Overall

6794

Males

5926

M45-49

5926

5K→10K

3.1 - 6.2 mi

Top 30%
×5stories
+79ft-138ft

Overall

7613

Males

6520

M45-49

6520

10K→15K

6.2 - 9.3 mi

Top 27%
×3stories
+67ft-78ft

Overall

6794

Males

5926

M45-49

5926

15K→20K

9.3 - 12.4 mi

Top 24%
×5stories
+106ft-86ft

Overall

6116

Males

5396

M45-49

5396

20K→Half

12.4 - 13.1 mi

Top 22%
×2stories
+19ft-37ft

Overall

5610

Males

5031

M45-49

5031

Half→25K

13.1 - 15.5 mi

Top 20%
×4stories
+66ft-88ft

Overall

5107

Males

4551

M45-49

4551

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

3719

Males

3390

M45-49

3390

30K→20M

18.6 - 20.0 mi

Top 11%
×5stories
+64ft-50ft

Overall

2926

Males

2683

M45-49

2683

20M→21M

20.0 - 21.0 mi

Top 11%
×8stories
+106ft-24ft

Overall

2774

Males

2516

M45-49

2516

21M→35K

21.0 - 21.8 mi

Top 8%
×7stories
+17ft-86ft

Overall

2037

Males

1884

M45-49

1884

35K→23M

21.8 - 23.0 mi

Top 7%
×5stories
+23ft-63ft

Overall

1916

Males

1765

M45-49

1765

23M→24M

23.0 - 24.0 mi

Top 7%
×6stories
+12ft-82ft

Overall

1751

Males

1605

M45-49

1605

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

1804

Males

1635

M45-49

1635

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

2027

Males

1795

M45-49

1795

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2stories
+22ft-21ft

Overall

2189

Males

1905

M45-49

1905

Passing Analysis

Category:
Athletes Passed
3574
Passed By
565
Net Change
+3009
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6903
5K → 10K82416-334#6903#7237
10K → 15K22687+139#7237#7098
15K → 20K35523+332#7098#6766
20K → Half727+65#6766#6701
Half → 25K35814+344#6701#6357
25K → 30K6907+683#6357#5674
30K → 20M3280+328#5674#5346
20M → 21M2721+271#5346#5075
21M → 35K1820+182#5075#4893
35K → 23M3312+329#4893#4564
23M → 24M2582+256#4564#4308
24M → 40K2070+207#4308#4101
40K → 25.2M751+74#4101#4027
25.2M → Finish1385+133#4027#3894
TOTALS3574565+3009
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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