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BOSTON MARATHON 2023

Baitao Xiao

Bib: 6080•M

MI

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 18%
Gender (Male)
#0 / 15176
Top 30%
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:15
Rank: #5053
Start → 5K
21:15 | 6:50/mi
10K· 6.21 mi
42:47
Rank: #5699 (-646)
5K → 10K
21:32 | 6:56/mi
15K· 9.32 mi
1:04:03
Rank: #5641 (+58)
10K → 15K
21:16 | 6:51/mi
20K· 12.43 mi
1:25:28
Rank: #5538 (+103)
15K → 20K
21:25 | 6:54/mi
Half· 13.11 mi
1:30:07
Rank: #5535 (+3)
20K → Half
4:39 | 6:49/mi
25K· 15.53 mi
1:46:46
Rank: #5395 (+140)
Half → 25K
16:39 | 6:52/mi
30K· 18.64 mi
2:08:34
Rank: #5148 (+247)
25K → 30K
21:48 | 7:01/mi
20M
2:18:06
Rank: #5022 (+126)
30K → 20M
9:32 | 7:01/mi
21M
2:25:35
Rank: #4973 (+49)
20M → 21M
7:29 | 7:29/mi
35K· 21.75 mi
2:30:48
Rank: #4965 (+8)
21M → 35K
5:13 | 6:58/mi
23M
2:40:01
Rank: #4959 (+6)
35K → 23M
9:13 | 7:22/mi
24M
2:47:13
Rank: #4969 (-10)
23M → 24M
7:12 | 7:12/mi
40K· 24.85 mi
2:53:35
Rank: #4976 (-7)
24M → 40K
6:22 | 7:27/mi
25.2M
2:56:17
Rank: #4972 (+4)
40K → 25.2M
2:42 | 7:50/mi
Finish· 26.22 mi
3:03:22
Rank: #4921 (+51)
25.2M → Finish
7:05 | 6:57/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:07
Pace6:52 /mi
2nd Half
Distance13.11 mi
Time1:33:15
Pace7:07 /mi
📊Positive Split: 3.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:1721:156:5021:15
6:50
-
10K
6.21 mi10:45:4942:476:5321:32
6:56
+0:06
15K
9.32 mi11:07:051:04:036:5221:16
6:51
-0:05
20K
12.43 mi11:28:301:25:286:5321:25
6:54
+0:03
Half
13.11 mi11:33:091:30:076:524:39
6:49
-0:05
25K
15.53 mi11:49:481:46:466:5216:39
6:52
+0:03
30K
18.64 mi12:11:362:08:346:5421:48
7:01
+0:09
20M
20.00 mi12:21:082:18:066:549:32
7:01
0:00
21M
21.00 mi12:28:372:25:356:567:29
7:29
+0:28
35K
21.75 mi12:33:502:30:486:565:13
6:58
-0:31
23M
23.00 mi12:43:032:40:016:579:13
7:22
+0:24
24M
24.00 mi12:50:152:47:136:587:12
7:12
-0:10
40K
24.85 mi12:56:372:53:356:596:22
7:27
+0:15
25.2M
25.20 mi12:59:192:56:177:002:42
7:50
+0:23
Finish
26.22 mi13:06:243:03:227:007:05
6:57
-0:53

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

6:49 /mi

Average Pace

7:00 /mi

Slowest Pace

7:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:00:40

99% of race

Time at Steady Pace

2:42

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:00 /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 mi10:24:1721:156:5021:15
6:50
#5053
10K
6.21 mi10:45:4942:476:5321:32
6:56
#5699
15K
9.32 mi11:07:051:04:036:5221:16
6:51
#5641
20K
12.43 mi11:28:301:25:286:5321:25
6:54
#5538
Half
13.11 mi11:33:091:30:076:524:39
6:49
#5535
25K
15.53 mi11:49:481:46:466:5216:39
6:52
#5395
30K
18.64 mi12:11:362:08:346:5421:48
7:01
#5148
20M
20.00 mi12:21:082:18:066:549:32
7:01
#5022
21M
21.00 mi12:28:372:25:356:567:29
7:29
#4973
35K
21.75 mi12:33:502:30:486:565:13
6:58
#4965
23M
23.00 mi12:43:032:40:016:579:13
7:22
#4959
24M
24.00 mi12:50:152:47:136:587:12
7:12
#4969
40K
24.85 mi12:56:372:53:356:596:22
7:27
#4976
25.2M
25.20 mi12:59:192:56:177:002:42
7:50
#4972
Finish
26.22 mi13:06:243:03:227:007:05
6:57
#4921
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5053468846885517(Top 21%)5080(Top 33%)5080(Top 96%)
10K6.21 mi3.10 mi5699-6465238-5505238-5506337(Top 24%)5727(Top 38%)5727(Top 108%)
15K9.32 mi3.11 mi5641+585183+555183+555517(Top 21%)5080(Top 33%)5080(Top 96%)
20K12.43 mi3.11 mi5538+1035107+765107+765290(Top 20%)4883(Top 32%)4883(Top 92%)
Half13.11 mi0.68 mi5535+35109-25109-25357(Top 20%)4940(Top 33%)4940(Top 93%)
25K15.53 mi2.42 mi5395+1404986+1234986+1234720(Top 18%)4383(Top 29%)4383(Top 83%)
30K18.64 mi3.11 mi5148+2474766+2204766+2204468(Top 17%)4145(Top 27%)4145(Top 78%)
20M20.00 mi1.36 mi5022+1264655+1114655+1114134(Top 16%)3824(Top 25%)3824(Top 72%)
21M21.00 mi1.00 mi4973+494606+494606+494495(Top 17%)4097(Top 27%)4097(Top 78%)
35K21.75 mi0.75 mi4965+84593+134593+135161(Top 19%)4612(Top 30%)4612(Top 87%)
23M23.00 mi1.25 mi4959+64586+74586+75610(Top 21%)4912(Top 32%)4912(Top 93%)
24M24.00 mi1.00 mi4969-104579+74579+75723(Top 21%)4916(Top 32%)4916(Top 93%)
40K24.85 mi0.85 mi4976-74584-54584-56323(Top 24%)5222(Top 34%)5222(Top 99%)
25.2M25.20 mi0.35 mi4972+44579+54579+55486(Top 21%)4585(Top 30%)4585(Top 87%)
Finish26.22 mi1.02 mi4921+514528+514528+514915(Top 18%)4212(Top 28%)4212(Top 80%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21stories
+97ft-345ft

Overall

5517

Males

5080

M18-39

5080

5K→10K

3.1 - 6.2 mi

Top 24%
×5stories
+79ft-138ft

Overall

6337

Males

5727

M18-39

5727

10K→15K

6.2 - 9.3 mi

Top 21%
×3stories
+67ft-78ft

Overall

5517

Males

5080

M18-39

5080

15K→20K

9.3 - 12.4 mi

Top 20%
×5stories
+106ft-86ft

Overall

5290

Males

4883

M18-39

4883

20K→Half

12.4 - 13.1 mi

Top 20%
×2stories
+19ft-37ft

Overall

5357

Males

4940

M18-39

4940

Half→25K

13.1 - 15.5 mi

Top 18%
×4stories
+66ft-88ft

Overall

4720

Males

4383

M18-39

4383

25K→30K

15.5 - 18.6 mi

Top 17%
×9stories
+181ft-148ft

Overall

4468

Males

4145

M18-39

4145

30K→20M

18.6 - 20.0 mi

Top 16%
×5stories
+64ft-50ft

Overall

4134

Males

3824

M18-39

3824

20M→21M

20.0 - 21.0 mi

Top 17%
×8stories
+106ft-24ft

Overall

4495

Males

4097

M18-39

4097

21M→35K

21.0 - 21.8 mi

Top 19%
×7stories
+17ft-86ft

Overall

5161

Males

4612

M18-39

4612

35K→23M

21.8 - 23.0 mi

Top 21%
×5stories
+23ft-63ft

Overall

5610

Males

4912

M18-39

4912

23M→24M

23.0 - 24.0 mi

Top 21%
×6stories
+12ft-82ft

Overall

5723

Males

4916

M18-39

4916

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6323

Males

5222

M18-39

5222

40K→25.2M

24.9 - 25.2 mi

Top 21%
×1story
+13ft-16ft

Overall

5486

Males

4585

M18-39

4585

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2stories
+22ft-21ft

Overall

4915

Males

4212

M18-39

4212

Passing Analysis

Category:
Athletes Passed
1299
Passed By
1167
Net Change
+132
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5053
5K → 10K34680-646#5053#5699
10K → 15K13678+58#5699#5641
15K → 20K16562+103#5641#5538
20K → Half1916+3#5538#5535
Half → 25K15515+140#5535#5395
25K → 30K27528+247#5395#5148
30K → 20M13913+126#5148#5022
20M → 21M8839+49#5022#4973
21M → 35K3729+8#4973#4965
35K → 23M7670+6#4965#4959
23M → 24M4656-10#4959#4969
24M → 40K4148-7#4969#4976
40K → 25.2M1814+4#4976#4972
25.2M → Finish7019+51#4972#4921
TOTALS12991167+132
📊

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