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BOSTON MARATHON 2024

Kaiwen Xu

Bib: 6242•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 20%
Gender (Male)
#0 / 14578
Top 31%
Masters (Masters Men)
#0 / 9729
Top 19%
Division (M40-44)
#0 / 2009
Top 44%
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
6:37/mi
20:34
↑ 97↓ 3451.5%
10K· 6.21 mi
6:50/mi
41:48
↑ 79↓ 1380.4%
15K· 9.32 mi
7:01/mi
1:03:35
↑ 67↓ 78
20K· 12.43 mi
7:14/mi
1:26:03
↑ 106↓ 860.1%
Half· 13.11 mi
7:23/mi
1:31:05
↑ 19↓ 370.5%
25K· 15.53 mi
7:21/mi
1:48:55
↑ 66↓ 880.2%
30K· 18.64 mi
7:44/mi
2:12:58
↑ 181↓ 1480.2%
20M
7:55/mi
2:23:44
↑ 64↓ 500.2%
21M
8:45/mi
2:32:29
↑ 106↓ 241.6%
35K· 21.75 mi
7:37/mi
2:38:11
↑ 17↓ 861.7%
23M
7:54/mi
2:48:05
↑ 23↓ 630.6%
24M
7:32/mi
2:55:37
↓ 821.3%
40K· 24.85 mi
7:48/mi
3:02:17
↓ 200.3%
25.2M
8:33/mi
3:05:14
↑ 13↓ 160.2%
Finish· 26.22 mi
7:26/mi
3:12:48
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:05
Pace6:57 /mi
2nd Half
Distance13.11 mi
Time1:41:43
Pace7:46 /mi
📊Positive Split: 11.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:5320:346:3720:34
6:37
-
10K
6.21 mi10:47:0741:486:4421:14
6:50
+0:13
15K
9.32 mi11:08:541:03:356:4921:47
7:01
+0:11
20K
12.43 mi11:31:221:26:036:5522:28
7:14
+0:13
Half
13.11 mi11:36:241:31:056:575:02
7:23
+0:09
25K
15.53 mi11:54:141:48:557:0117:50
7:21
-0:02
30K
18.64 mi12:18:172:12:587:0824:03
7:44
+0:23
20M
20.00 mi12:29:032:23:447:1110:46
7:55
+0:11
21M
21.00 mi12:37:482:32:297:168:45
8:45
+0:50
35K
21.75 mi12:43:302:38:117:165:42
7:37
-1:08
23M
23.00 mi12:53:242:48:057:189:54
7:54
+0:17
24M
24.00 mi13:00:562:55:377:197:32
7:32
-0:22
40K
24.85 mi13:07:363:02:177:206:40
7:48
+0:16
25.2M
25.20 mi13:10:333:05:147:212:57
8:33
+0:45
Finish
26.22 mi13:18:073:12:487:227:34
7:26
-1:07

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

6:37 /mi

Average Pace

7:22 /mi

Slowest Pace

8:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:26:03

45% of race

Time at Steady Pace

1:14:23

39% of race

Time at Slower Pace

32:22

17% of race

Average Pace: 7:21 /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 mi10:25:5320:346:3720:34
6:37
#4179
10K
6.21 mi10:47:0741:486:4421:14
6:50
#4780
15K
9.32 mi11:08:541:03:356:4921:47
7:01
#5350
20K
12.43 mi11:31:221:26:036:5522:28
7:14
#5686
Half
13.11 mi11:36:241:31:056:575:02
7:23
#5814
25K
15.53 mi11:54:141:48:557:0117:50
7:21
#5798
30K
18.64 mi12:18:172:12:587:0824:03
7:44
#5756
20M
20.00 mi12:29:032:23:447:1110:46
7:55
#5725
21M
21.00 mi12:37:482:32:297:168:45
8:45
#5737
35K
21.75 mi12:43:302:38:117:165:42
7:37
#5676
23M
23.00 mi12:53:242:48:057:189:54
7:54
#5559
24M
24.00 mi13:00:562:55:377:197:32
7:32
#5418
40K
24.85 mi13:07:363:02:177:206:40
7:48
#5317
25.2M
25.20 mi13:10:333:05:147:212:57
8:33
#5261
Finish
26.22 mi13:18:073:12:487:227:34
7:26
#5192
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi4179394639466278(Top 25%)5586(Top 38%)5586(Top 278%)
10K6.21 mi3.10 mi4780-6014456-5104456-5105476(Top 21%)5019(Top 34%)5019(Top 250%)
15K9.32 mi3.11 mi5350-5704925-4694925-4696278(Top 25%)5586(Top 38%)5586(Top 278%)
20K12.43 mi3.11 mi5686-3365159-2345159-2346565(Top 26%)5694(Top 39%)5694(Top 283%)
Half13.11 mi0.68 mi5814-1285253-945253-948132(Top 32%)6680(Top 46%)6680(Top 333%)
25K15.53 mi2.42 mi5798+165217+365217+366136(Top 24%)5263(Top 36%)5263(Top 262%)
30K18.64 mi3.11 mi5756+425112+1055112+1056350(Top 25%)5228(Top 36%)5228(Top 260%)
20M20.00 mi1.36 mi5725+315065+475065+476326(Top 25%)5042(Top 35%)5042(Top 251%)
21M21.00 mi1.00 mi5737-125048+175048+177352(Top 29%)5450(Top 37%)5450(Top 271%)
35K21.75 mi0.75 mi5676+614978+704978+705640(Top 22%)4468(Top 31%)4468(Top 222%)
23M23.00 mi1.25 mi5559+1174864+1144864+1145293(Top 21%)4141(Top 28%)4141(Top 206%)
24M24.00 mi1.00 mi5418+1414735+1294735+1294264(Top 17%)3464(Top 24%)3464(Top 172%)
40K24.85 mi0.85 mi5317+1014634+1014634+1014743(Top 19%)3641(Top 25%)3641(Top 181%)
25.2M25.20 mi0.35 mi5261+564578+564578+564659(Top 18%)3554(Top 24%)3554(Top 177%)
Finish26.22 mi1.02 mi5192+694500+784500+785190(Top 20%)3903(Top 27%)3903(Top 194%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 25%
×21story building
+97ft-345ft

Overall

6278

Males

5586

M40-44

5586

5K→10K

3.1 - 6.2 mi

Top 21%
×5story building
+79ft-138ft

Overall

5476

Males

5019

M40-44

5019

10K→15K

6.2 - 9.3 mi

Top 25%
×3story building
+67ft-78ft

Overall

6278

Males

5586

M40-44

5586

15K→20K

9.3 - 12.4 mi

Top 26%
×5story building
+106ft-86ft

Overall

6565

Males

5694

M40-44

5694

20K→Half

12.4 - 13.1 mi

Top 32%
×2story building
+19ft-37ft

Overall

8132

Males

6680

M40-44

6680

Half→25K

13.1 - 15.5 mi

Top 24%
×4story building
+66ft-88ft

Overall

6136

Males

5263

M40-44

5263

25K→30K

15.5 - 18.6 mi

Top 25%
×9story building
+181ft-148ft

Overall

6350

Males

5228

M40-44

5228

30K→20M

18.6 - 20.0 mi

Top 25%
×5story building
+64ft-50ft

Overall

6326

Males

5042

M40-44

5042

20M→21M

20.0 - 21.0 mi

Top 29%
×8story building
+106ft-24ft

Overall

7352

Males

5450

M40-44

5450

21M→35K

21.0 - 21.8 mi

Top 22%
×7story building
+17ft-86ft

Overall

5640

Males

4468

M40-44

4468

35K→23M

21.8 - 23.0 mi

Top 21%
×5story building
+23ft-63ft

Overall

5293

Males

4141

M40-44

4141

23M→24M

23.0 - 24.0 mi

Top 17%
×6story building
+12ft-82ft

Overall

4264

Males

3464

M40-44

3464

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

4743

Males

3641

M40-44

3641

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

4659

Males

3554

M40-44

3554

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2story building
+22ft-21ft

Overall

5190

Males

3903

M40-44

3903

Passing Analysis

Category:
Athletes Passed
1475
Passed By
2488
Net Change
-1013
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4179
5K → 10K41642-601#4179#4780
10K → 15K47617-570#4780#5350
15K → 20K88424-336#5350#5686
20K → Half2130-128#5686#5814
Half → 25K158142+16#5814#5798
25K → 30K227185+42#5798#5756
30K → 20M11281+31#5756#5725
20M → 21M95107-12#5725#5737
21M → 35K9635+61#5737#5676
35K → 23M16346+117#5676#5559
23M → 24M15413+141#5559#5418
24M → 40K12322+101#5418#5317
40K → 25.2M7014+56#5317#5261
25.2M → Finish9930+69#5261#5192
TOTALS14752488-1013
📊

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