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BOSTON MARATHON 2023

Xuan Hou

Bib: 2649•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 12%
Gender (Male)
#0 / 15176
Top 19%
Division (M18-39)
#0 / 5285
Top 41%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ 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
6:42/mi
20:48
↑ 97↓ 3451.5%
10K· 6.21 mi
6:36/mi
41:19
↑ 79↓ 1380.4%
15K· 9.32 mi
6:37/mi
1:01:51
↑ 67↓ 78
20K· 12.43 mi
6:41/mi
1:22:38
↑ 106↓ 860.1%
Half· 13.11 mi
6:45/mi
1:27:14
↑ 19↓ 370.5%
25K· 15.53 mi
6:44/mi
1:43:34
↑ 66↓ 880.2%
30K· 18.64 mi
6:56/mi
2:05:07
↑ 181↓ 1480.2%
20M
6:54/mi
2:14:30
↑ 64↓ 500.2%
21M
7:14/mi
2:21:44
↑ 106↓ 241.6%
35K· 21.75 mi
6:49/mi
2:26:50
↑ 17↓ 861.7%
23M
6:51/mi
2:35:25
↑ 23↓ 630.6%
24M
6:30/mi
2:41:55
↓ 821.3%
40K· 24.85 mi
6:31/mi
2:47:29
↓ 200.3%
25.2M
7:00/mi
2:49:54
↑ 13↓ 160.2%
Finish· 26.22 mi
6:30/mi
2:56:31
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:14
Pace6:39 /mi
2nd Half
Distance13.11 mi
Time1:29:17
Pace6:49 /mi
📊Positive Split: 2.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:5420:486:4220:48
6:42
-
10K
6.21 mi10:42:2541:196:3920:31
6:36
-0:06
15K
9.32 mi11:02:571:01:516:3820:32
6:37
+0:01
20K
12.43 mi11:23:441:22:386:3920:47
6:41
+0:04
Half
13.11 mi11:28:201:27:146:394:36
6:45
+0:04
25K
15.53 mi11:44:401:43:346:4016:20
6:44
-0:01
30K
18.64 mi12:06:132:05:076:4321:33
6:56
+0:12
20M
20.00 mi12:15:362:14:306:439:23
6:54
-0:02
21M
21.00 mi12:22:502:21:446:457:14
7:14
+0:20
35K
21.75 mi12:27:562:26:506:455:06
6:49
-0:25
23M
23.00 mi12:36:312:35:256:458:35
6:51
+0:02
24M
24.00 mi12:43:012:41:556:456:30
6:30
-0:21
40K
24.85 mi12:48:352:47:296:445:34
6:31
+0:01
25.2M
25.20 mi12:51:002:49:546:452:25
7:00
+0:29
Finish
26.22 mi12:57:372:56:316:446:37
6:30
-0:30

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

6:30 /mi

Average Pace

6:44 /mi

Slowest Pace

7:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:49:17

96% of race

Time at Steady Pace

7:14

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:44 /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 mi10:21:5420:486:4220:48
6:42
#3616
10K
6.21 mi10:42:2541:196:3920:31
6:36
#3522
15K
9.32 mi11:02:571:01:516:3820:32
6:37
#3445
20K
12.43 mi11:23:441:22:386:3920:47
6:41
#3441
Half
13.11 mi11:28:201:27:146:394:36
6:45
#3491
25K
15.53 mi11:44:401:43:346:4016:20
6:44
#3489
30K
18.64 mi12:06:132:05:076:4321:33
6:56
#3533
20M
20.00 mi12:15:362:14:306:439:23
6:54
#3492
21M
21.00 mi12:22:502:21:446:457:14
7:14
#3441
35K
21.75 mi12:27:562:26:506:455:06
6:49
#3457
23M
23.00 mi12:36:312:35:256:458:35
6:51
#3385
24M
24.00 mi12:43:012:41:556:456:30
6:30
#3290
40K
24.85 mi12:48:352:47:296:445:34
6:31
#3182
25.2M
25.20 mi12:51:002:49:546:452:25
7:00
#3138
Finish
26.22 mi12:57:372:56:316:446:37
6:30
#3066
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3616340634063351(Top 13%)3180(Top 21%)3180(Top 60%)
10K6.21 mi3.10 mi3522+943325+813325+813513(Top 13%)3326(Top 22%)3326(Top 63%)
15K9.32 mi3.11 mi3445+773263+623263+623351(Top 13%)3180(Top 21%)3180(Top 60%)
20K12.43 mi3.11 mi3441+43262+13262+13482(Top 13%)3296(Top 22%)3296(Top 62%)
Half13.11 mi0.68 mi3491-503306-443306-444650(Top 17%)4312(Top 28%)4312(Top 82%)
25K15.53 mi2.42 mi3489+23309-33309-33627(Top 14%)3416(Top 23%)3416(Top 65%)
30K18.64 mi3.11 mi3533-443345-363345-363894(Top 15%)3643(Top 24%)3643(Top 69%)
20M20.00 mi1.36 mi3492+413302+433302+433431(Top 13%)3203(Top 21%)3203(Top 61%)
21M21.00 mi1.00 mi3441+513259+433259+433272(Top 12%)3052(Top 20%)3052(Top 58%)
35K21.75 mi0.75 mi3457-163274-153274-154238(Top 16%)3873(Top 26%)3873(Top 73%)
23M23.00 mi1.25 mi3385+723206+683206+682954(Top 11%)2755(Top 18%)2755(Top 52%)
24M24.00 mi1.00 mi3290+953116+903116+902103(Top 8%)1973(Top 13%)1973(Top 37%)
40K24.85 mi0.85 mi3182+1083011+1053011+1051596(Top 6%)1506(Top 10%)1506(Top 28%)
25.2M25.20 mi0.35 mi3138+442972+392972+391796(Top 7%)1689(Top 11%)1689(Top 32%)
Finish26.22 mi1.02 mi3066+722903+692903+692443(Top 9%)2251(Top 15%)2251(Top 43%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21story building
+97ft-345ft

Overall

3351

Males

3180

M18-39

3180

5K→10K

3.1 - 6.2 mi

Top 13%
×5story building
+79ft-138ft

Overall

3513

Males

3326

M18-39

3326

10K→15K

6.2 - 9.3 mi

Top 13%
×3story building
+67ft-78ft

Overall

3351

Males

3180

M18-39

3180

15K→20K

9.3 - 12.4 mi

Top 13%
×5story building
+106ft-86ft

Overall

3482

Males

3296

M18-39

3296

20K→Half

12.4 - 13.1 mi

Top 17%
×2story building
+19ft-37ft

Overall

4650

Males

4312

M18-39

4312

Half→25K

13.1 - 15.5 mi

Top 14%
×4story building
+66ft-88ft

Overall

3627

Males

3416

M18-39

3416

25K→30K

15.5 - 18.6 mi

Top 15%
×9story building
+181ft-148ft

Overall

3894

Males

3643

M18-39

3643

30K→20M

18.6 - 20.0 mi

Top 13%
×5story building
+64ft-50ft

Overall

3431

Males

3203

M18-39

3203

20M→21M

20.0 - 21.0 mi

Top 12%
×8story building
+106ft-24ft

Overall

3272

Males

3052

M18-39

3052

21M→35K

21.0 - 21.8 mi

Top 16%
×7story building
+17ft-86ft

Overall

4238

Males

3873

M18-39

3873

35K→23M

21.8 - 23.0 mi

Top 11%
×5story building
+23ft-63ft

Overall

2954

Males

2755

M18-39

2755

23M→24M

23.0 - 24.0 mi

Top 8%
×6story building
+12ft-82ft

Overall

2103

Males

1973

M18-39

1973

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1596

Males

1506

M18-39

1506

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

1796

Males

1689

M18-39

1689

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2story building
+22ft-21ft

Overall

2443

Males

2251

M18-39

2251

Passing Analysis

Category:
Athletes Passed
1262
Passed By
712
Net Change
+550
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3616
5K → 10K237143+94#3616#3522
10K → 15K13861+77#3522#3445
15K → 20K8278+4#3445#3441
20K → Half757-50#3441#3491
Half → 25K7674+2#3491#3489
25K → 30K89133-44#3489#3533
30K → 20M7837+41#3533#3492
20M → 21M8130+51#3492#3441
21M → 35K2743-16#3441#3457
35K → 23M9624+72#3457#3385
23M → 24M1016+95#3385#3290
24M → 40K1102+108#3290#3182
40K → 25.2M495+44#3182#3138
25.2M → Finish9119+72#3138#3066
TOTALS1262712+550
📊

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