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BOSTON MARATHON 2023

Xiaoxue Liao

Bib: 16469•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 42%
Masters (Masters Women)
#0 / 6539
Top 30%
Division (F40-44)
#0 / 1878
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:50
Rank: #13983
Start → 5K
24:50 | 8:00/mi
10K· 6.21 mi
50:05
Rank: #14833 (-850)
5K → 10K
25:15 | 8:08/mi
15K· 9.32 mi
1:15:24
Rank: #15052 (-219)
10K → 15K
25:19 | 8:09/mi
20K· 12.43 mi
1:41:23
Rank: #15314 (-262)
15K → 20K
25:59 | 8:22/mi
Half· 13.11 mi
1:46:55
Rank: #15289 (+25)
20K → Half
5:32 | 8:07/mi
25K· 15.53 mi
2:06:54
Rank: #15129 (+160)
Half → 25K
19:59 | 8:15/mi
30K· 18.64 mi
2:33:52
Rank: #15158 (-29)
25K → 30K
26:58 | 8:41/mi
20M
2:45:57
Rank: #15220 (-62)
30K → 20M
12:05 | 8:54/mi
21M
2:55:10
Rank: #15150 (+70)
20M → 21M
9:13 | 9:13/mi
35K· 21.75 mi
3:01:19
Rank: #15091 (+59)
21M → 35K
6:09 | 8:13/mi
23M
3:12:00
Rank: #14975 (+116)
35K → 23M
10:41 | 8:32/mi
24M
3:20:15
Rank: #14868 (+107)
23M → 24M
8:15 | 8:15/mi
40K· 24.85 mi
3:27:36
Rank: #14801 (+67)
24M → 40K
7:21 | 8:36/mi
25.2M
3:30:54
Rank: #14798 (+3)
40K → 25.2M
3:18 | 9:34/mi
Finish· 26.22 mi
3:39:33
Rank: #14827 (-29)
25.2M → Finish
8:39 | 8:29/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:55
Pace8:09 /mi
2nd Half
Distance13.11 mi
Time1:52:38
Pace8:36 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:2424:508:0024:50
8:00
-
10K
6.21 mi11:49:3950:058:0425:15
8:08
+0:08
15K
9.32 mi12:14:581:15:248:0525:19
8:09
+0:01
20K
12.43 mi12:40:571:41:238:0925:59
8:22
+0:13
Half
13.11 mi12:46:291:46:558:095:32
8:07
-0:15
25K
15.53 mi13:06:282:06:548:1019:59
8:15
+0:08
30K
18.64 mi13:33:262:33:528:1526:58
8:41
+0:26
20M
20.00 mi13:45:312:45:578:1812:05
8:54
+0:13
21M
21.00 mi13:54:442:55:108:209:13
9:13
+0:19
35K
21.75 mi14:00:533:01:198:206:09
8:13
-1:00
23M
23.00 mi14:11:343:12:008:2110:41
8:32
+0:19
24M
24.00 mi14:19:493:20:158:218:15
8:15
-0:17
40K
24.85 mi14:27:103:27:368:217:21
8:36
+0:21
25.2M
25.20 mi14:30:283:30:548:223:18
9:34
+0:58
Finish
26.22 mi14:39:073:39:338:238:39
8:29
-1:05

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

8:00 /mi

Average Pace

8:23 /mi

Slowest Pace

9:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:14:57

89% of race

Time at Steady Pace

21:18

10% of race

Time at Slower Pace

3:18

2% of race

Average Pace: 8:22 /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 mi11:24:2424:508:0024:50
8:00
#13983
10K
6.21 mi11:49:3950:058:0425:15
8:08
#14833
15K
9.32 mi12:14:581:15:248:0525:19
8:09
#15052
20K
12.43 mi12:40:571:41:238:0925:59
8:22
#15314
Half
13.11 mi12:46:291:46:558:095:32
8:07
#15289
25K
15.53 mi13:06:282:06:548:1019:59
8:15
#15129
30K
18.64 mi13:33:262:33:528:1526:58
8:41
#15158
20M
20.00 mi13:45:312:45:578:1812:05
8:54
#15220
21M
21.00 mi13:54:442:55:108:209:13
9:13
#15150
35K
21.75 mi14:00:533:01:198:206:09
8:13
#15091
23M
23.00 mi14:11:343:12:008:2110:41
8:32
#14975
24M
24.00 mi14:19:493:20:158:218:15
8:15
#14868
40K
24.85 mi14:27:103:27:368:217:21
8:36
#14801
25.2M
25.20 mi14:30:283:30:548:223:18
9:34
#14798
Finish
26.22 mi14:39:073:39:338:238:39
8:29
#14827
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi139834021402115502(Top 58%)4983(Top 44%)4983(Top 265%)
10K6.21 mi3.10 mi14833-8504547-5264547-52615734(Top 59%)5101(Top 45%)5101(Top 272%)
15K9.32 mi3.11 mi15052-2194697-1504697-15015502(Top 58%)4983(Top 44%)4983(Top 265%)
20K12.43 mi3.11 mi15314-2624878-1814878-18116019(Top 60%)5357(Top 47%)5357(Top 285%)
Half13.11 mi0.68 mi15289+254868+104868+1015248(Top 57%)4833(Top 42%)4833(Top 257%)
25K15.53 mi2.42 mi15129+1604787+814787+8114552(Top 55%)4554(Top 40%)4554(Top 242%)
30K18.64 mi3.11 mi15158-294858-714858-7115399(Top 58%)5165(Top 45%)5165(Top 275%)
20M20.00 mi1.36 mi15220-624923-654923-6515974(Top 60%)5556(Top 49%)5556(Top 296%)
21M21.00 mi1.00 mi15150+704893+304893+3014581(Top 55%)4811(Top 42%)4811(Top 256%)
35K21.75 mi0.75 mi15091+594874+194874+1913642(Top 51%)4377(Top 38%)4377(Top 233%)
23M23.00 mi1.25 mi14975+1164818+564818+5613456(Top 51%)4319(Top 38%)4319(Top 230%)
24M24.00 mi1.00 mi14868+1074772+464772+4612981(Top 49%)4133(Top 36%)4133(Top 220%)
40K24.85 mi0.85 mi14801+674761+114761+1113962(Top 52%)4725(Top 41%)4725(Top 252%)
25.2M25.20 mi0.35 mi14798+34772-114772-1115541(Top 58%)5602(Top 49%)5602(Top 298%)
Finish26.22 mi1.02 mi14827-294805-334805-3315372(Top 58%)5465(Top 48%)5465(Top 291%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21stories
+97ft-345ft

Overall

15502

Females

4983

F40-44

4983

5K→10K

3.1 - 6.2 mi

Top 59%
×5stories
+79ft-138ft

Overall

15734

Females

5101

F40-44

5101

10K→15K

6.2 - 9.3 mi

Top 58%
×3stories
+67ft-78ft

Overall

15502

Females

4983

F40-44

4983

15K→20K

9.3 - 12.4 mi

Top 60%
×5stories
+106ft-86ft

Overall

16019

Females

5357

F40-44

5357

20K→Half

12.4 - 13.1 mi

Top 57%
×2stories
+19ft-37ft

Overall

15248

Females

4833

F40-44

4833

Half→25K

13.1 - 15.5 mi

Top 55%
×4stories
+66ft-88ft

Overall

14552

Females

4554

F40-44

4554

25K→30K

15.5 - 18.6 mi

Top 58%
×9stories
+181ft-148ft

Overall

15399

Females

5165

F40-44

5165

30K→20M

18.6 - 20.0 mi

Top 60%
×5stories
+64ft-50ft

Overall

15974

Females

5556

F40-44

5556

20M→21M

20.0 - 21.0 mi

Top 55%
×8stories
+106ft-24ft

Overall

14581

Females

4811

F40-44

4811

21M→35K

21.0 - 21.8 mi

Top 51%
×7stories
+17ft-86ft

Overall

13642

Females

4377

F40-44

4377

35K→23M

21.8 - 23.0 mi

Top 51%
×5stories
+23ft-63ft

Overall

13456

Females

4319

F40-44

4319

23M→24M

23.0 - 24.0 mi

Top 49%
×6stories
+12ft-82ft

Overall

12981

Females

4133

F40-44

4133

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

13962

Females

4725

F40-44

4725

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1story
+13ft-16ft

Overall

15541

Females

5602

F40-44

5602

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2stories
+22ft-21ft

Overall

15372

Females

5465

F40-44

5465

Passing Analysis

Category:
Athletes Passed
1400
Passed By
2244
Net Change
-844
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13983
5K → 10K62912-850#13983#14833
10K → 15K117336-219#14833#15052
15K → 20K100362-262#15052#15314
20K → Half4621+25#15314#15289
Half → 25K22060+160#15289#15129
25K → 30K175204-29#15129#15158
30K → 20M64126-62#15158#15220
20M → 21M11646+70#15220#15150
21M → 35K7617+59#15150#15091
35K → 23M13721+116#15091#14975
23M → 24M12114+107#14975#14868
24M → 40K9225+67#14868#14801
40K → 25.2M2825+3#14801#14798
25.2M → Finish4675-29#14798#14827
TOTALS14002244-844
📊

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