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BOSTON MARATHON 2023

Xiwen Cheng

Bib: 1302•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 6%
Gender (Male)
#0 / 15176
Top 10%
Masters (Masters Men)
#0 / 9891
Top 3%
Division (M40-44)
#0 / 2241
Top 9%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:49
Rank: #1724
Start → 5K
19:49 | 6:23/mi
10K· 6.21 mi
39:38
Rank: #1891 (-167)
5K → 10K
19:49 | 6:23/mi
15K· 9.32 mi
59:34
Rank: #1958 (-67)
10K → 15K
19:56 | 6:25/mi
20K· 12.43 mi
1:19:33
Rank: #1938 (+20)
15K → 20K
19:59 | 6:26/mi
Half· 13.11 mi
1:23:50
Rank: #1918 (+20)
20K → Half
4:17 | 6:17/mi
25K· 15.53 mi
1:39:33
Rank: #1927 (-9)
Half → 25K
15:43 | 6:29/mi
30K· 18.64 mi
2:00:11
Rank: #1949 (-22)
25K → 30K
20:38 | 6:38/mi
20M
2:09:07
Rank: #1916 (+33)
30K → 20M
8:56 | 6:34/mi
21M
2:16:00
Rank: #1894 (+22)
20M → 21M
6:53 | 6:53/mi
35K· 21.75 mi
2:20:40
Rank: #1859 (+35)
21M → 35K
4:40 | 6:14/mi
23M
2:28:49
Rank: #1802 (+57)
35K → 23M
8:09 | 6:31/mi
24M
2:35:08
Rank: #1760 (+42)
23M → 24M
6:19 | 6:19/mi
40K· 24.85 mi
2:40:42
Rank: #1728 (+32)
24M → 40K
5:34 | 6:31/mi
25.2M
2:43:05
Rank: #1719 (+9)
40K → 25.2M
2:23 | 6:55/mi
Finish· 26.22 mi
2:49:17
Rank: #1658 (+61)
25.2M → Finish
6:12 | 6:05/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:50
Pace6:24 /mi
2nd Half
Distance13.11 mi
Time1:25:27
Pace6:31 /mi
📊Positive Split: 1.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:0819:496:2319:49
6:23
-
10K
6.21 mi10:39:5739:386:2319:49
6:23
0:00
15K
9.32 mi10:59:5359:346:2319:56
6:25
+0:02
20K
12.43 mi11:19:521:19:336:2419:59
6:26
+0:01
Half
13.11 mi11:24:091:23:506:244:17
6:17
-0:09
25K
15.53 mi11:39:521:39:336:2515:43
6:29
+0:12
30K
18.64 mi12:00:302:00:116:2720:38
6:38
+0:09
20M
20.00 mi12:09:262:09:076:278:56
6:34
-0:04
21M
21.00 mi12:16:192:16:006:296:53
6:53
+0:19
35K
21.75 mi12:20:592:20:406:284:40
6:14
-0:39
23M
23.00 mi12:29:082:28:496:288:09
6:31
+0:17
24M
24.00 mi12:35:272:35:086:286:19
6:19
-0:12
40K
24.85 mi12:41:012:40:426:285:34
6:31
+0:12
25.2M
25.20 mi12:43:242:43:056:282:23
6:55
+0:24
Finish
26.22 mi12:49:362:49:176:286:12
6:05
-0:50

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

6:05 /mi

Average Pace

6:28 /mi

Slowest Pace

6:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:40:01

95% of race

Time at Steady Pace

9:16

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:27 /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 mi10:20:0819:496:2319:49
6:23
#1724
10K
6.21 mi10:39:5739:386:2319:49
6:23
#1891
15K
9.32 mi10:59:5359:346:2319:56
6:25
#1958
20K
12.43 mi11:19:521:19:336:2419:59
6:26
#1938
Half
13.11 mi11:24:091:23:506:244:17
6:17
#1918
25K
15.53 mi11:39:521:39:336:2515:43
6:29
#1927
30K
18.64 mi12:00:302:00:116:2720:38
6:38
#1949
20M
20.00 mi12:09:262:09:076:278:56
6:34
#1916
21M
21.00 mi12:16:192:16:006:296:53
6:53
#1894
35K
21.75 mi12:20:592:20:406:284:40
6:14
#1859
23M
23.00 mi12:29:082:28:496:288:09
6:31
#1802
24M
24.00 mi12:35:272:35:086:286:19
6:19
#1760
40K
24.85 mi12:41:012:40:426:285:34
6:31
#1728
25.2M
25.20 mi12:43:242:43:056:282:23
6:55
#1719
Finish
26.22 mi12:49:362:49:176:286:12
6:05
#1658
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi1724164316432176(Top 8%)2089(Top 14%)2089(Top 93%)
10K6.21 mi3.10 mi1891-1671811-1681811-1682118(Top 8%)2029(Top 13%)2029(Top 91%)
15K9.32 mi3.11 mi1958-671874-631874-632176(Top 8%)2089(Top 14%)2089(Top 93%)
20K12.43 mi3.11 mi1938+201856+181856+181932(Top 7%)1854(Top 12%)1854(Top 83%)
Half13.11 mi0.68 mi1918+201837+191837+191696(Top 6%)1626(Top 11%)1626(Top 73%)
25K15.53 mi2.42 mi1927-91845-81845-82073(Top 8%)1987(Top 13%)1987(Top 89%)
30K18.64 mi3.11 mi1949-221866-211866-212137(Top 8%)2040(Top 13%)2040(Top 91%)
20M20.00 mi1.36 mi1916+331834+321834+321725(Top 6%)1645(Top 11%)1645(Top 73%)
21M21.00 mi1.00 mi1894+221811+231811+231693(Top 6%)1609(Top 11%)1609(Top 72%)
35K21.75 mi0.75 mi1859+351778+331778+331364(Top 5%)1294(Top 9%)1294(Top 58%)
23M23.00 mi1.25 mi1802+571723+551723+551452(Top 5%)1379(Top 9%)1379(Top 62%)
24M24.00 mi1.00 mi1760+421684+391684+391386(Top 5%)1312(Top 9%)1312(Top 59%)
40K24.85 mi0.85 mi1728+321652+321652+321554(Top 6%)1464(Top 10%)1464(Top 65%)
25.2M25.20 mi0.35 mi1719+91643+91643+91459(Top 5%)1376(Top 9%)1376(Top 61%)
Finish26.22 mi1.02 mi1658+611582+611582+61942(Top 4%)900(Top 6%)900(Top 40%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2176

Males

2089

M40-44

2089

5K→10K

3.1 - 6.2 mi

Top 8%
×5stories
+79ft-138ft

Overall

2118

Males

2029

M40-44

2029

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2176

Males

2089

M40-44

2089

15K→20K

9.3 - 12.4 mi

Top 7%
×5stories
+106ft-86ft

Overall

1932

Males

1854

M40-44

1854

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1696

Males

1626

M40-44

1626

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2073

Males

1987

M40-44

1987

25K→30K

15.5 - 18.6 mi

Top 8%
×9stories
+181ft-148ft

Overall

2137

Males

2040

M40-44

2040

30K→20M

18.6 - 20.0 mi

Top 6%
×5stories
+64ft-50ft

Overall

1725

Males

1645

M40-44

1645

20M→21M

20.0 - 21.0 mi

Top 6%
×8stories
+106ft-24ft

Overall

1693

Males

1609

M40-44

1609

21M→35K

21.0 - 21.8 mi

Top 5%
×7stories
+17ft-86ft

Overall

1364

Males

1294

M40-44

1294

35K→23M

21.8 - 23.0 mi

Top 5%
×5stories
+23ft-63ft

Overall

1452

Males

1379

M40-44

1379

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1386

Males

1312

M40-44

1312

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1554

Males

1464

M40-44

1464

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1459

Males

1376

M40-44

1376

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2stories
+22ft-21ft

Overall

942

Males

900

M40-44

900

Passing Analysis

Category:
Athletes Passed
602
Passed By
536
Net Change
+66
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1724
5K → 10K29196-167#1724#1891
10K → 15K40107-67#1891#1958
15K → 20K6040+20#1958#1938
20K → Half255+20#1938#1918
Half → 25K3241-9#1918#1927
25K → 30K5072-22#1927#1949
30K → 20M4613+33#1949#1916
20M → 21M4119+22#1916#1894
21M → 35K405+35#1894#1859
35K → 23M6710+57#1859#1802
23M → 24M486+42#1802#1760
24M → 40K397+32#1760#1728
40K → 25.2M1910+9#1728#1719
25.2M → Finish665+61#1719#1658
TOTALS602536+66
📊

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