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BOSTON MARATHON 2023

Buqin Xu

Bib: 17432•F

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 31%
Gender (Female)
#0 / 11423
Top 12%
Division (F18-39)
#0 / 4884
Top 22%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:17
Rank: #7347
Start → 5K
22:17 | 7:10/mi
10K· 6.21 mi
45:11
Rank: #8271 (-924)
5K → 10K
22:54 | 7:22/mi
15K· 9.32 mi
1:08:23
Rank: #8748 (-477)
10K → 15K
23:12 | 7:28/mi
20K· 12.43 mi
1:32:06
Rank: #9091 (-343)
15K → 20K
23:43 | 7:38/mi
Half· 13.11 mi
1:37:12
Rank: #9121 (-30)
20K → Half
5:06 | 7:29/mi
25K· 15.53 mi
1:55:39
Rank: #9173 (-52)
Half → 25K
18:27 | 7:37/mi
30K· 18.64 mi
2:19:26
Rank: #9007 (+166)
25K → 30K
23:47 | 7:39/mi
20M
2:29:54
Rank: #8913 (+94)
30K → 20M
10:28 | 7:42/mi
21M
2:37:48
Rank: #8752 (+161)
20M → 21M
7:54 | 7:54/mi
35K· 21.75 mi
2:43:28
Rank: #8761 (-9)
21M → 35K
5:40 | 7:34/mi
23M
2:52:59
Rank: #8628 (+133)
35K → 23M
9:31 | 7:36/mi
24M
3:00:18
Rank: #8496 (+132)
23M → 24M
7:19 | 7:19/mi
40K· 24.85 mi
3:06:33
Rank: #8358 (+138)
24M → 40K
6:15 | 7:19/mi
25.2M
3:09:18
Rank: #8303 (+55)
40K → 25.2M
2:45 | 7:58/mi
Finish· 26.22 mi
3:16:46
Rank: #8225 (+78)
25.2M → Finish
7:28 | 7:20/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:12
Pace7:25 /mi
2nd Half
Distance13.11 mi
Time1:39:34
Pace7:36 /mi
📊Positive Split: 2.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:12:4022:177:1022:17
7:10
-
10K
6.21 mi11:35:3445:117:1622:54
7:22
+0:12
15K
9.32 mi11:58:461:08:237:2023:12
7:28
+0:06
20K
12.43 mi12:22:291:32:067:2523:43
7:38
+0:10
Half
13.11 mi12:27:351:37:127:255:06
7:29
-0:09
25K
15.53 mi12:46:021:55:397:2718:27
7:37
+0:08
30K
18.64 mi13:09:492:19:267:2923:47
7:39
+0:02
20M
20.00 mi13:20:172:29:547:3010:28
7:42
+0:03
21M
21.00 mi13:28:112:37:487:317:54
7:54
+0:12
35K
21.75 mi13:33:512:43:287:315:40
7:34
-0:20
23M
23.00 mi13:43:222:52:597:319:31
7:36
+0:02
24M
24.00 mi13:50:413:00:187:317:19
7:19
-0:17
40K
24.85 mi13:56:563:06:337:306:15
7:19
0:00
25.2M
25.20 mi13:59:413:09:187:312:45
7:58
+0:39
Finish
26.22 mi14:07:093:16:467:317:28
7:20
-0:38

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

7:10 /mi

Average Pace

7:31 /mi

Slowest Pace

7:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:06:07

95% of race

Time at Steady Pace

10:39

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:30 /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 mi11:12:4022:177:1022:17
7:10
#7347
10K
6.21 mi11:35:3445:117:1622:54
7:22
#8271
15K
9.32 mi11:58:461:08:237:2023:12
7:28
#8748
20K
12.43 mi12:22:291:32:067:2523:43
7:38
#9091
Half
13.11 mi12:27:351:37:127:255:06
7:29
#9121
25K
15.53 mi12:46:021:55:397:2718:27
7:37
#9173
30K
18.64 mi13:09:492:19:267:2923:47
7:39
#9007
20M
20.00 mi13:20:172:29:547:3010:28
7:42
#8913
21M
21.00 mi13:28:112:37:487:317:54
7:54
#8752
35K
21.75 mi13:33:512:43:287:315:40
7:34
#8761
23M
23.00 mi13:43:222:52:597:319:31
7:36
#8628
24M
24.00 mi13:50:413:00:187:317:19
7:19
#8496
40K
24.85 mi13:56:563:06:337:306:15
7:19
#8358
25.2M
25.20 mi13:59:413:09:187:312:45
7:58
#8303
Finish
26.22 mi14:07:093:16:467:317:28
7:20
#8225
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi73478018019918(Top 37%)1798(Top 16%)1798(Top 37%)
10K6.21 mi3.10 mi8271-9241131-3301131-3309401(Top 35%)1584(Top 14%)1584(Top 32%)
15K9.32 mi3.11 mi8748-4771328-1971328-1979918(Top 37%)1798(Top 16%)1798(Top 37%)
20K12.43 mi3.11 mi9091-3431474-1461474-14610360(Top 39%)2069(Top 18%)2069(Top 42%)
Half13.11 mi0.68 mi9121-301487-131487-1310048(Top 38%)1884(Top 16%)1884(Top 39%)
25K15.53 mi2.42 mi9173-521509-221509-229625(Top 36%)1828(Top 16%)1828(Top 37%)
30K18.64 mi3.11 mi9007+1661489+201489+208338(Top 31%)1441(Top 13%)1441(Top 30%)
20M20.00 mi1.36 mi8913+941471+181471+188224(Top 31%)1483(Top 13%)1483(Top 30%)
21M21.00 mi1.00 mi8752+1611424+471424+476765(Top 25%)1046(Top 9%)1046(Top 21%)
35K21.75 mi0.75 mi8761-91437-131437-139107(Top 34%)1957(Top 17%)1957(Top 40%)
23M23.00 mi1.25 mi8628+1331419+181419+187120(Top 27%)1217(Top 11%)1217(Top 25%)
24M24.00 mi1.00 mi8496+1321390+291390+296521(Top 24%)1082(Top 9%)1082(Top 22%)
40K24.85 mi0.85 mi8358+1381356+341356+345562(Top 21%)838(Top 7%)838(Top 17%)
25.2M25.20 mi0.35 mi8303+551346+101346+106424(Top 24%)1208(Top 11%)1208(Top 25%)
Finish26.22 mi1.02 mi8225+781342+41342+47328(Top 28%)1552(Top 14%)1552(Top 32%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21stories
+97ft-345ft

Overall

9918

Females

1798

F18-39

1798

5K→10K

3.1 - 6.2 mi

Top 35%
×5stories
+79ft-138ft

Overall

9401

Females

1584

F18-39

1584

10K→15K

6.2 - 9.3 mi

Top 37%
×3stories
+67ft-78ft

Overall

9918

Females

1798

F18-39

1798

15K→20K

9.3 - 12.4 mi

Top 39%
×5stories
+106ft-86ft

Overall

10360

Females

2069

F18-39

2069

20K→Half

12.4 - 13.1 mi

Top 38%
×2stories
+19ft-37ft

Overall

10048

Females

1884

F18-39

1884

Half→25K

13.1 - 15.5 mi

Top 36%
×4stories
+66ft-88ft

Overall

9625

Females

1828

F18-39

1828

25K→30K

15.5 - 18.6 mi

Top 31%
×9stories
+181ft-148ft

Overall

8338

Females

1441

F18-39

1441

30K→20M

18.6 - 20.0 mi

Top 31%
×5stories
+64ft-50ft

Overall

8224

Females

1483

F18-39

1483

20M→21M

20.0 - 21.0 mi

Top 25%
×8stories
+106ft-24ft

Overall

6765

Females

1046

F18-39

1046

21M→35K

21.0 - 21.8 mi

Top 34%
×7stories
+17ft-86ft

Overall

9107

Females

1957

F18-39

1957

35K→23M

21.8 - 23.0 mi

Top 27%
×5stories
+23ft-63ft

Overall

7120

Females

1217

F18-39

1217

23M→24M

23.0 - 24.0 mi

Top 24%
×6stories
+12ft-82ft

Overall

6521

Females

1082

F18-39

1082

24M→40K

24.0 - 24.9 mi

Top 21%
×1story
+6ft-20ft

Overall

5562

Females

838

F18-39

838

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6424

Females

1208

F18-39

1208

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2stories
+22ft-21ft

Overall

7328

Females

1552

F18-39

1552

Passing Analysis

Category:
Athletes Passed
1410
Passed By
2288
Net Change
-878
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7347
5K → 10K26950-924#7347#8271
10K → 15K35512-477#8271#8748
15K → 20K46389-343#8748#9091
20K → Half939-30#9091#9121
Half → 25K104156-52#9121#9173
25K → 30K24680+166#9173#9007
30K → 20M12632+94#9007#8913
20M → 21M17817+161#8913#8752
21M → 35K3948-9#8752#8761
35K → 23M15017+133#8761#8628
23M → 24M14210+132#8628#8496
24M → 40K1457+138#8496#8358
40K → 25.2M605+55#8358#8303
25.2M → Finish10426+78#8303#8225
TOTALS14102288-878
📊

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