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BOSTON MARATHON 2024

Minghao Cai

MI

Bib: 9931 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 21%
Gender (Male)
#0 / 14578
Top 31%
Masters (Masters Men)
#0 / 9729
Top 20%
Division (M50-54)
#0 / 1935
Top 16%
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
6:59/mi
21:42
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
6:58/mi
43:20
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
6:58/mi
1:04:59
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:06/mi
1:27:03
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:01/mi
1:31:50
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:18/mi
1:49:31
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:43/mi
2:13:29
↑ 181↓ 1480.2%
138 ft elev
20M
7:54/mi
2:24:13
↑ 64↓ 500.2%
148 ft elev
21M
8:20/mi
2:32:33
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:03/mi
2:38:34
↑ 17↓ 861.7%
156 ft elev
23M
7:47/mi
2:48:19
↑ 23↓ 630.6%
116 ft elev
24M
7:56/mi
2:56:15
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:41/mi
3:02:49
↓ 200.3%
20 ft elev
25.2M
8:27/mi
3:05:44
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:16/mi
3:13:08
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:31:507:00 /mi⚡ faster
2nd Half
1:41:187:44 /mi+10.3%
Positive split — 10.3% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:1621:426:5921:42
6:59
-
10K
6.21 mi11:08:5443:206:5821:38
6:58
-0:01
15K
9.32 mi11:30:331:04:596:5821:39
6:58
0:00
20K
12.43 mi11:52:371:27:037:0022:04
7:06
+0:08
Half
13.11 mi11:57:241:31:507:004:47
7:01
-0:05
25K
15.53 mi12:15:051:49:317:0317:41
7:18
+0:17
30K
18.64 mi12:39:032:13:297:1023:58
7:43
+0:25
20M
20.00 mi12:49:472:24:137:1310:44
7:54
+0:11
21M
21.00 mi12:58:072:32:337:168:20
8:20
+0:26
35K
21.75 mi13:04:082:38:347:176:01
8:03
-0:17
23M
23.00 mi13:13:532:48:197:199:45
7:47
-0:16
24M
24.00 mi13:21:492:56:157:217:56
7:56
+0:09
40K
24.85 mi13:28:233:02:497:216:34
7:41
-0:15
25.2M
25.20 mi13:31:183:05:447:222:55
8:27
+0:46
Finish
26.22 mi13:38:423:13:087:227:24
7:16
-1:11

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

6:58 /mi

Average Pace

7:22 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Segment Time Comparison

Time at Faster Pace

1:56:55

61% of race

Time at Steady Pace

51:01

26% of race

Time at Slower Pace

25:12

13% of race

Average Pace: 7:22 /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 mi10:47:1621:426:5921:42
6:59
#6936
10K
6.21 mi11:08:5443:206:5821:38
6:58
#6670
15K
9.32 mi11:30:331:04:596:5821:39
6:58
#6405
20K
12.43 mi11:52:371:27:037:0022:04
7:06
#6198
Half
13.11 mi11:57:241:31:507:004:47
7:01
#6165
25K
15.53 mi12:15:051:49:317:0317:41
7:18
#6025
30K
18.64 mi12:39:032:13:297:1023:58
7:43
#5925
20M
20.00 mi12:49:472:24:137:1310:44
7:54
#5879
21M
21.00 mi12:58:072:32:337:168:20
8:20
#5758
35K
21.75 mi13:04:082:38:347:176:01
8:03
#5776
23M
23.00 mi13:13:532:48:197:199:45
7:47
#5622
24M
24.00 mi13:21:492:56:157:217:56
7:56
#5574
40K
24.85 mi13:28:233:02:497:216:34
7:41
#5446
25.2M
25.20 mi13:31:183:05:447:222:55
8:27
#5397
Finish
26.22 mi13:38:423:13:087:227:24
7:16
#5262
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi693661236123602153955395
10K6.21 mi3.10 mi6670+2665913+2105913+210642857145714
15K9.32 mi3.11 mi6405+2655712+2015712+201602153955395
20K12.43 mi3.11 mi6198+2075536+1765536+176580051685168
Half13.11 mi0.68 mi6165+335505+315505+31578451695169
25K15.53 mi2.42 mi6025+1405377+1285377+128577850365036
30K18.64 mi3.11 mi5925+1005237+1405237+140621751475147
20M20.00 mi1.36 mi5879+465175+625175+62619449664966
21M21.00 mi1.00 mi5758+1215061+1145061+114544543774377
35K21.75 mi0.75 mi5776-185052+95052+9800057405740
23M23.00 mi1.25 mi5622+1544905+1474905+147474338283828
24M24.00 mi1.00 mi5574+484844+614844+61624045854585
40K24.85 mi0.85 mi5446+1284725+1194725+119424233503350
25.2M25.20 mi0.35 mi5397+494680+454680+45425433183318
Finish26.22 mi1.02 mi5262+1354550+1304550+130431033963396

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×21story building
+97ft-345ft

Overall

6021

Males

5395

M50-54

5395

5K→10K

3.1 - 6.2 mi

Top 25%
×5story building
+79ft-138ft

Overall

6428

Males

5714

M50-54

5714

10K→15K

6.2 - 9.3 mi

Top 24%
×3story building
+67ft-78ft

Overall

6021

Males

5395

M50-54

5395

15K→20K

9.3 - 12.4 mi

Top 23%
×5story building
+106ft-86ft

Overall

5800

Males

5168

M50-54

5168

20K→Half

12.4 - 13.1 mi

Top 23%
×2story building
+19ft-37ft

Overall

5784

Males

5169

M50-54

5169

Half→25K

13.1 - 15.5 mi

Top 23%
×4story building
+66ft-88ft

Overall

5778

Males

5036

M50-54

5036

25K→30K

15.5 - 18.6 mi

Top 24%
×9story building
+181ft-148ft

Overall

6217

Males

5147

M50-54

5147

30K→20M

18.6 - 20.0 mi

Top 24%
×5story building
+64ft-50ft

Overall

6194

Males

4966

M50-54

4966

20M→21M

20.0 - 21.0 mi

Top 21%
×8story building
+106ft-24ft

Overall

5445

Males

4377

M50-54

4377

21M→35K

21.0 - 21.8 mi

Top 31%
×7story building
+17ft-86ft

Overall

8000

Males

5740

M50-54

5740

35K→23M

21.8 - 23.0 mi

Top 19%
×5story building
+23ft-63ft

Overall

4743

Males

3828

M50-54

3828

23M→24M

23.0 - 24.0 mi

Top 24%
×6story building
+12ft-82ft

Overall

6240

Males

4585

M50-54

4585

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4242

Males

3350

M50-54

3350

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1story
+13ft-16ft

Overall

4254

Males

3318

M50-54

3318

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2story building
+22ft-21ft

Overall

4310

Males

3396

M50-54

3396

Passing Analysis

Category:
Athletes Passed
2427
Passed By
753
Net Change
+1674
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6936
5K → 10K34276+266#6936#6670
10K → 15K29833+265#6670#6405
15K → 20K28174+207#6405#6198
20K → Half4613+33#6198#6165
Half → 25K22181+140#6165#6025
25K → 30K249149+100#6025#5925
30K → 20M12276+46#5925#5879
20M → 21M15635+121#5879#5758
21M → 35K6684-18#5758#5776
35K → 23M18531+154#5776#5622
23M → 24M10557+48#5622#5574
24M → 40K14618+128#5574#5446
40K → 25.2M6112+49#5446#5397
25.2M → Finish14914+135#5397#5262
TOTALS2427753+1674

Passing Charts

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