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BOSTON MARATHON 2023

Xin Xu

Bib: 1505•M

OH

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 7%
Gender (Male)
#0 / 15176
Top 11%
Masters (Masters Men)
#0 / 9891
Top 3%
Division (M50-54)
#0 / 2052
Top 1%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:44
Rank: #1622
Start → 5K
19:44 | 6:21/mi
10K· 6.21 mi
39:28
Rank: #1790 (-168)
5K → 10K
19:44 | 6:21/mi
15K· 9.32 mi
59:21
Rank: #1864 (-74)
10K → 15K
19:53 | 6:24/mi
20K· 12.43 mi
1:19:11
Rank: #1814 (+50)
15K → 20K
19:50 | 6:23/mi
Half· 13.11 mi
1:23:28
Rank: #1807 (+7)
20K → Half
4:17 | 6:17/mi
25K· 15.53 mi
1:39:04
Rank: #1796 (+11)
Half → 25K
15:36 | 6:26/mi
30K· 18.64 mi
1:59:29
Rank: #1776 (+20)
25K → 30K
20:25 | 6:34/mi
20M
2:08:32
Rank: #1776
30K → 20M
9:03 | 6:40/mi
21M
2:15:30
Rank: #1775 (+1)
20M → 21M
6:58 | 6:58/mi
35K· 21.75 mi
2:20:22
Rank: #1793 (-18)
21M → 35K
4:52 | 6:30/mi
23M
2:28:43
Rank: #1785 (+8)
35K → 23M
8:21 | 6:40/mi
24M
2:35:19
Rank: #1793 (-8)
23M → 24M
6:36 | 6:36/mi
40K· 24.85 mi
2:41:00
Rank: #1791 (+2)
24M → 40K
5:41 | 6:39/mi
25.2M
2:43:25
Rank: #1784 (+7)
40K → 25.2M
2:25 | 7:00/mi
Finish· 26.22 mi
2:49:57
Rank: #1775 (+9)
25.2M → Finish
6:32 | 6:25/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:28
Pace6:22 /mi
2nd Half
Distance13.11 mi
Time1:26:29
Pace6:36 /mi
📊Positive Split: 3.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:2019:446:2119:44
6:21
-
10K
6.21 mi10:40:0439:286:2119:44
6:21
0:00
15K
9.32 mi10:59:5759:216:2219:53
6:24
+0:03
20K
12.43 mi11:19:471:19:116:2219:50
6:23
-0:01
Half
13.11 mi11:24:041:23:286:224:17
6:17
-0:06
25K
15.53 mi11:39:401:39:046:2315:36
6:26
+0:09
30K
18.64 mi12:00:051:59:296:2520:25
6:34
+0:08
20M
20.00 mi12:09:082:08:326:269:03
6:40
+0:06
21M
21.00 mi12:16:062:15:306:276:58
6:58
+0:18
35K
21.75 mi12:20:582:20:226:274:52
6:30
-0:28
23M
23.00 mi12:29:192:28:436:288:21
6:40
+0:10
24M
24.00 mi12:35:552:35:196:286:36
6:36
-0:04
40K
24.85 mi12:41:362:41:006:295:41
6:39
+0:03
25.2M
25.20 mi12:44:012:43:256:292:25
7:00
+0:21
Finish
26.22 mi12:50:332:49:576:296:32
6:25
-0:35

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

6:17 /mi

Average Pace

6:29 /mi

Slowest Pace

7:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:40:34

94% of race

Time at Steady Pace

9:23

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:29 /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 mi10:20:2019:446:2119:44
6:21
#1622
10K
6.21 mi10:40:0439:286:2119:44
6:21
#1790
15K
9.32 mi10:59:5759:216:2219:53
6:24
#1864
20K
12.43 mi11:19:471:19:116:2219:50
6:23
#1814
Half
13.11 mi11:24:041:23:286:224:17
6:17
#1807
25K
15.53 mi11:39:401:39:046:2315:36
6:26
#1796
30K
18.64 mi12:00:051:59:296:2520:25
6:34
#1776
20M
20.00 mi12:09:082:08:326:269:03
6:40
#1776
21M
21.00 mi12:16:062:15:306:276:58
6:58
#1775
35K
21.75 mi12:20:582:20:226:274:52
6:30
#1793
23M
23.00 mi12:29:192:28:436:288:21
6:40
#1785
24M
24.00 mi12:35:552:35:196:286:36
6:36
#1793
40K
24.85 mi12:41:362:41:006:295:41
6:39
#1791
25.2M
25.20 mi12:44:012:43:256:292:25
7:00
#1784
Finish
26.22 mi12:50:332:49:576:296:32
6:25
#1775
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi1622154515452091(Top 8%)2006(Top 13%)2006(Top 98%)
10K6.21 mi3.10 mi1790-1681712-1671712-1671984(Top 7%)1901(Top 13%)1901(Top 93%)
15K9.32 mi3.11 mi1864-741783-711783-712091(Top 8%)2006(Top 13%)2006(Top 98%)
20K12.43 mi3.11 mi1814+501737+461737+461728(Top 6%)1654(Top 11%)1654(Top 81%)
Half13.11 mi0.68 mi1807+71729+81729+81705(Top 6%)1635(Top 11%)1635(Top 80%)
25K15.53 mi2.42 mi1796+111717+121717+121873(Top 7%)1795(Top 12%)1795(Top 87%)
30K18.64 mi3.11 mi1776+201700+171700+171838(Top 7%)1761(Top 12%)1761(Top 86%)
20M20.00 mi1.36 mi17761698+21698+22099(Top 8%)2000(Top 13%)2000(Top 97%)
21M21.00 mi1.00 mi1775+11700-21700-21975(Top 7%)1870(Top 12%)1870(Top 91%)
35K21.75 mi0.75 mi1793-181715-151715-152400(Top 9%)2272(Top 15%)2272(Top 111%)
23M23.00 mi1.25 mi1785+81707+81707+82035(Top 8%)1925(Top 13%)1925(Top 94%)
24M24.00 mi1.00 mi1793-81714-71714-72531(Top 10%)2359(Top 16%)2359(Top 115%)
40K24.85 mi0.85 mi1791+21713+11713+12086(Top 8%)1950(Top 13%)1950(Top 95%)
25.2M25.20 mi0.35 mi1784+71705+81705+81746(Top 7%)1639(Top 11%)1639(Top 80%)
Finish26.22 mi1.02 mi1775+91696+91696+92050(Top 8%)1905(Top 13%)1905(Top 93%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2091

Males

2006

M50-54

2006

5K→10K

3.1 - 6.2 mi

Top 7%
×5stories
+79ft-138ft

Overall

1984

Males

1901

M50-54

1901

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2091

Males

2006

M50-54

2006

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1728

Males

1654

M50-54

1654

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1705

Males

1635

M50-54

1635

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

1873

Males

1795

M50-54

1795

25K→30K

15.5 - 18.6 mi

Top 7%
×9stories
+181ft-148ft

Overall

1838

Males

1761

M50-54

1761

30K→20M

18.6 - 20.0 mi

Top 8%
×5stories
+64ft-50ft

Overall

2099

Males

2000

M50-54

2000

20M→21M

20.0 - 21.0 mi

Top 7%
×8stories
+106ft-24ft

Overall

1975

Males

1870

M50-54

1870

21M→35K

21.0 - 21.8 mi

Top 9%
×7stories
+17ft-86ft

Overall

2400

Males

2272

M50-54

2272

35K→23M

21.8 - 23.0 mi

Top 8%
×5stories
+23ft-63ft

Overall

2035

Males

1925

M50-54

1925

23M→24M

23.0 - 24.0 mi

Top 10%
×6stories
+12ft-82ft

Overall

2531

Males

2359

M50-54

2359

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2086

Males

1950

M50-54

1950

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

1746

Males

1639

M50-54

1639

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2050

Males

1905

M50-54

1905

Passing Analysis

Category:
Athletes Passed
467
Passed By
620
Net Change
-153
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1622
5K → 10K36204-168#1622#1790
10K → 15K29103-74#1790#1864
15K → 20K8030+50#1864#1814
20K → Half114+7#1814#1807
Half → 25K3726+11#1807#1796
25K → 30K6949+20#1796#1776
30K → 20M30300#1776#1776
20M → 21M2726+1#1776#1775
21M → 35K1634-18#1775#1793
35K → 23M3426+8#1793#1785
23M → 24M2028-8#1785#1793
24M → 40K2624+2#1793#1791
40K → 25.2M1912+7#1791#1784
25.2M → Finish3324+9#1784#1775
TOTALS467620-153
📊

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