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BOSTON MARATHON 2024

Zhihai Mai

Bib: 11142•M

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 18%
Gender (Male)
#0 / 14578
Top 28%
Masters (Masters Men)
#0 / 9729
Top 16%
Division (M50-54)
#0 / 1935
Top 12%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:54
Rank: #5043
Start → 5K
20:54 | 6:44/mi
10K· 6.21 mi
41:54
Rank: #4921 (+122)
5K → 10K
21:00 | 6:46/mi
15K· 9.32 mi
1:02:54
Rank: #4713 (+208)
10K → 15K
21:00 | 6:46/mi
20K· 12.43 mi
1:24:37
Rank: #4825 (-112)
15K → 20K
21:43 | 6:59/mi
Half· 13.11 mi
1:29:09
Rank: #4716 (+109)
20K → Half
4:32 | 6:39/mi
25K· 15.53 mi
1:46:22
Rank: #4713 (+3)
Half → 25K
17:13 | 7:06/mi
30K· 18.64 mi
2:10:19
Rank: #4942 (-229)
25K → 30K
23:57 | 7:43/mi
20M
2:20:54
Rank: #4929 (+13)
30K → 20M
10:35 | 7:47/mi
21M
2:30:02
Rank: #5094 (-165)
20M → 21M
9:08 | 9:08/mi
35K· 21.75 mi
2:35:18
Rank: #4953 (+141)
21M → 35K
5:16 | 7:02/mi
23M
2:45:21
Rank: #4907 (+46)
35K → 23M
10:03 | 8:02/mi
24M
2:52:51
Rank: #4788 (+119)
23M → 24M
7:30 | 7:30/mi
40K· 24.85 mi
2:59:26
Rank: #4703 (+85)
24M → 40K
6:35 | 7:42/mi
25.2M
3:02:12
Rank: #4630 (+73)
40K → 25.2M
2:46 | 8:01/mi
Finish· 26.22 mi
3:09:42
Rank: #4571 (+59)
25.2M → Finish
7:30 | 7:22/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:09
Pace6:48 /mi
2nd Half
Distance13.11 mi
Time1:40:33
Pace7:40 /mi
📊Positive Split: 12.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:1520:546:4420:54
6:44
-
10K
6.21 mi11:09:1541:546:4521:00
6:46
+0:02
15K
9.32 mi11:30:151:02:546:4521:00
6:46
0:00
20K
12.43 mi11:51:581:24:376:4921:43
6:59
+0:13
Half
13.11 mi11:56:301:29:096:484:32
6:39
-0:20
25K
15.53 mi12:13:431:46:226:5117:13
7:06
+0:27
30K
18.64 mi12:37:402:10:196:5923:57
7:43
+0:37
20M
20.00 mi12:48:152:20:547:0310:35
7:47
+0:04
21M
21.00 mi12:57:232:30:027:099:08
9:08
+1:21
35K
21.75 mi13:02:392:35:187:085:16
7:02
-2:06
23M
23.00 mi13:12:422:45:217:1110:03
8:02
+1:00
24M
24.00 mi13:20:122:52:517:127:30
7:30
-0:32
40K
24.85 mi13:26:472:59:267:136:35
7:42
+0:12
25.2M
25.20 mi13:29:333:02:127:142:46
8:01
+0:19
Finish
26.22 mi13:37:033:09:427:147:30
7:22
-0:39

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

6:39 /mi

Average Pace

7:14 /mi

Slowest Pace

9:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:34:25

50% of race

Time at Steady Pace

32:13

17% of race

Time at Slower Pace

1:03:04

33% of race

Average Pace: 7:14 /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 mi10:48:1520:546:4420:54
6:44
#5043
10K
6.21 mi11:09:1541:546:4521:00
6:46
#4921
15K
9.32 mi11:30:151:02:546:4521:00
6:46
#4713
20K
12.43 mi11:51:581:24:376:4921:43
6:59
#4825
Half
13.11 mi11:56:301:29:096:484:32
6:39
#4716
25K
15.53 mi12:13:431:46:226:5117:13
7:06
#4713
30K
18.64 mi12:37:402:10:196:5923:57
7:43
#4942
20M
20.00 mi12:48:152:20:547:0310:35
7:47
#4929
21M
21.00 mi12:57:232:30:027:099:08
9:08
#5094
35K
21.75 mi13:02:392:35:187:085:16
7:02
#4953
23M
23.00 mi13:12:422:45:217:1110:03
8:02
#4907
24M
24.00 mi13:20:122:52:517:127:30
7:30
#4788
40K
24.85 mi13:26:472:59:267:136:35
7:42
#4703
25.2M
25.20 mi13:29:333:02:127:142:46
8:01
#4630
Finish
26.22 mi13:37:033:09:427:147:30
7:22
#4571
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi5043467146714372(Top 17%)4082(Top 28%)4082(Top 211%)
10K6.21 mi3.10 mi4921+1224569+1024569+1024822(Top 19%)4476(Top 31%)4476(Top 231%)
15K9.32 mi3.11 mi4713+2084385+1844385+1844372(Top 17%)4082(Top 28%)4082(Top 211%)
20K12.43 mi3.11 mi4825-1124473-884473-885186(Top 20%)4721(Top 32%)4721(Top 244%)
Half13.11 mi0.68 mi4716+1094381+924381+923453(Top 14%)3271(Top 22%)3271(Top 169%)
25K15.53 mi2.42 mi4713+34358+234358+234813(Top 19%)4334(Top 30%)4334(Top 224%)
30K18.64 mi3.11 mi4942-2294521-1634521-1636178(Top 24%)5120(Top 35%)5120(Top 265%)
20M20.00 mi1.36 mi4929+134489+324489+325626(Top 22%)4623(Top 32%)4623(Top 239%)
21M21.00 mi1.00 mi5094-1654580-914580-919153(Top 36%)6345(Top 44%)6345(Top 328%)
35K21.75 mi0.75 mi4953+1414459+1214459+1213226(Top 13%)2884(Top 20%)2884(Top 149%)
23M23.00 mi1.25 mi4907+464390+694390+695866(Top 23%)4448(Top 31%)4448(Top 230%)
24M24.00 mi1.00 mi4788+1194275+1154275+1154133(Top 16%)3393(Top 23%)3393(Top 175%)
40K24.85 mi0.85 mi4703+854186+894186+894326(Top 17%)3399(Top 23%)3399(Top 176%)
25.2M25.20 mi0.35 mi4630+734117+694117+692814(Top 11%)2395(Top 16%)2395(Top 124%)
Finish26.22 mi1.02 mi4571+594051+664051+664809(Top 19%)3691(Top 25%)3691(Top 191%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21stories
+97ft-345ft

Overall

4372

Males

4082

M50-54

4082

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

4822

Males

4476

M50-54

4476

10K→15K

6.2 - 9.3 mi

Top 17%
×3stories
+67ft-78ft

Overall

4372

Males

4082

M50-54

4082

15K→20K

9.3 - 12.4 mi

Top 20%
×5stories
+106ft-86ft

Overall

5186

Males

4721

M50-54

4721

20K→Half

12.4 - 13.1 mi

Top 14%
×2stories
+19ft-37ft

Overall

3453

Males

3271

M50-54

3271

Half→25K

13.1 - 15.5 mi

Top 19%
×4stories
+66ft-88ft

Overall

4813

Males

4334

M50-54

4334

25K→30K

15.5 - 18.6 mi

Top 24%
×9stories
+181ft-148ft

Overall

6178

Males

5120

M50-54

5120

30K→20M

18.6 - 20.0 mi

Top 22%
×5stories
+64ft-50ft

Overall

5626

Males

4623

M50-54

4623

20M→21M

20.0 - 21.0 mi

Top 36%
×8stories
+106ft-24ft

Overall

9153

Males

6345

M50-54

6345

21M→35K

21.0 - 21.8 mi

Top 13%
×7stories
+17ft-86ft

Overall

3226

Males

2884

M50-54

2884

35K→23M

21.8 - 23.0 mi

Top 23%
×5stories
+23ft-63ft

Overall

5866

Males

4448

M50-54

4448

23M→24M

23.0 - 24.0 mi

Top 16%
×6stories
+12ft-82ft

Overall

4133

Males

3393

M50-54

3393

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4326

Males

3399

M50-54

3399

40K→25.2M

24.9 - 25.2 mi

Top 11%
×1story
+13ft-16ft

Overall

2814

Males

2395

M50-54

2395

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2stories
+22ft-21ft

Overall

4809

Males

3691

M50-54

3691

Passing Analysis

Category:
Athletes Passed
1859
Passed By
1387
Net Change
+472
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5043
5K → 10K245123+122#5043#4921
10K → 15K25648+208#4921#4713
15K → 20K139251-112#4713#4825
20K → Half1101+109#4825#4716
Half → 25K181178+3#4716#4713
25K → 30K117346-229#4713#4942
30K → 20M9784+13#4942#4929
20M → 21M53218-165#4929#5094
21M → 35K1432+141#5094#4953
35K → 23M11872+46#4953#4907
23M → 24M13112+119#4907#4788
24M → 40K10520+85#4788#4703
40K → 25.2M763+73#4703#4630
25.2M → Finish8829+59#4630#4571
TOTALS18591387+472
📊

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