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BOSTON MARATHON 2023

Xiang Zhao

Bib: 31915•F

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F50-54)
#0 / 1207
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
10:14/mi
31:47
↑ 97↓ 3451.5%
10K· 6.21 mi
10:23/mi
1:04:03
↑ 79↓ 1380.4%
15K· 9.32 mi
10:16/mi
1:35:56
↑ 67↓ 78
20K· 12.43 mi
10:22/mi
2:08:08
↑ 106↓ 860.1%
Half· 13.11 mi
10:07/mi
2:15:02
↑ 19↓ 370.5%
25K· 15.53 mi
10:25/mi
2:40:18
↑ 66↓ 880.2%
30K· 18.64 mi
10:53/mi
3:14:06
↑ 181↓ 1480.2%
20M
10:53/mi
3:28:53
↑ 64↓ 500.2%
21M
11:46/mi
3:40:39
↑ 106↓ 241.6%
35K· 21.75 mi
10:43/mi
3:48:40
↑ 17↓ 861.7%
23M
10:41/mi
4:02:02
↑ 23↓ 630.6%
24M
10:08/mi
4:12:10
↓ 821.3%
40K· 24.85 mi
10:20/mi
4:21:00
↓ 200.3%
25.2M
11:16/mi
4:24:53
↑ 13↓ 160.2%
Finish· 26.22 mi
9:22/mi
4:34:26
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:15:02
Pace10:18 /mi
2nd Half
Distance13.11 mi
Time2:19:24
Pace10:38 /mi
📊Positive Split: 3.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:56:3331:4710:1431:47
10:14
-
10K
6.21 mi12:28:491:04:0310:1832:16
10:23
+0:09
15K
9.32 mi13:00:421:35:5610:1831:53
10:16
-0:07
20K
12.43 mi13:32:542:08:0810:1932:12
10:22
+0:06
Half
13.11 mi13:39:482:15:0210:186:54
10:07
-0:15
25K
15.53 mi14:05:042:40:1810:1925:16
10:25
+0:18
30K
18.64 mi14:38:523:14:0610:2533:48
10:53
+0:28
20M
20.00 mi14:53:393:28:5310:2714:47
10:53
0:00
21M
21.00 mi15:05:253:40:3910:3011:46
11:46
+0:53
35K
21.75 mi15:13:263:48:4010:318:01
10:43
-1:03
23M
23.00 mi15:26:484:02:0210:3113:22
10:41
-0:02
24M
24.00 mi15:36:564:12:1010:3010:08
10:08
-0:33
40K
24.85 mi15:45:464:21:0010:308:50
10:20
+0:12
25.2M
25.20 mi15:49:394:24:5310:313:53
11:16
+0:56
Finish
26.22 mi15:59:124:34:2610:289:33
9:22
-1:54

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

9:22 /mi

Average Pace

10:28 /mi

Slowest Pace

11:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

9:33

3% of race

Time at Steady Pace

2:59:16

65% of race

Time at Slower Pace

1:25:37

31% of race

Average Pace: 10:28 /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 mi11:56:3331:4710:1431:47
10:14
#24021
10K
6.21 mi12:28:491:04:0310:1832:16
10:23
#24289
15K
9.32 mi13:00:421:35:5610:1831:53
10:16
#24204
20K
12.43 mi13:32:542:08:0810:1932:12
10:22
#24035
Half
13.11 mi13:39:482:15:0210:186:54
10:07
#23997
25K
15.53 mi14:05:042:40:1810:1925:16
10:25
#23814
30K
18.64 mi14:38:523:14:0610:2533:48
10:53
#23630
20M
20.00 mi14:53:393:28:5310:2714:47
10:53
#23553
21M
21.00 mi15:05:253:40:3910:3011:46
11:46
#23499
35K
21.75 mi15:13:263:48:4010:318:01
10:43
#23476
23M
23.00 mi15:26:484:02:0210:3113:22
10:41
#23390
24M
24.00 mi15:36:564:12:1010:3010:08
10:08
#23308
40K
24.85 mi15:45:464:21:0010:308:50
10:20
#23211
25.2M
25.20 mi15:49:394:24:5310:313:53
11:16
#23180
Finish
26.22 mi15:59:124:34:2610:289:33
9:22
#23070
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi240219901990124006(Top 90%)9891(Top 87%)9891(Top 819%)
10K6.21 mi3.10 mi24289-26810047-14610047-14624465(Top 92%)10146(Top 89%)10146(Top 841%)
15K9.32 mi3.11 mi24204+8510003+4410003+4424006(Top 90%)9891(Top 87%)9891(Top 819%)
20K12.43 mi3.11 mi24035+1699912+919912+9123592(Top 89%)9684(Top 85%)9684(Top 802%)
Half13.11 mi0.68 mi23997+389896+169896+1623520(Top 88%)9637(Top 84%)9637(Top 798%)
25K15.53 mi2.42 mi23814+1839796+1009796+10023045(Top 87%)9415(Top 82%)9415(Top 780%)
30K18.64 mi3.11 mi23630+1849717+799717+7922914(Top 86%)9417(Top 82%)9417(Top 780%)
20M20.00 mi1.36 mi23553+779688+299688+2922491(Top 84%)9247(Top 81%)9247(Top 766%)
21M21.00 mi1.00 mi23499+549658+309658+3022371(Top 84%)9208(Top 81%)9208(Top 763%)
35K21.75 mi0.75 mi23476+239655+39655+322780(Top 86%)9472(Top 83%)9472(Top 785%)
23M23.00 mi1.25 mi23390+869624+319624+3121717(Top 82%)8919(Top 78%)8919(Top 739%)
24M24.00 mi1.00 mi23308+829585+399585+3921170(Top 80%)8656(Top 76%)8656(Top 717%)
40K24.85 mi0.85 mi23211+979548+379548+3720847(Top 78%)8523(Top 75%)8523(Top 706%)
25.2M25.20 mi0.35 mi23180+319536+129536+1221085(Top 79%)8644(Top 76%)8644(Top 716%)
Finish26.22 mi1.02 mi23070+1109480+569480+5619690(Top 74%)7836(Top 69%)7836(Top 649%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21story building
+97ft-345ft

Overall

24006

Females

9891

F50-54

9891

5K→10K

3.1 - 6.2 mi

Top 92%
×5story building
+79ft-138ft

Overall

24465

Females

10146

F50-54

10146

10K→15K

6.2 - 9.3 mi

Top 90%
×3story building
+67ft-78ft

Overall

24006

Females

9891

F50-54

9891

15K→20K

9.3 - 12.4 mi

Top 89%
×5story building
+106ft-86ft

Overall

23592

Females

9684

F50-54

9684

20K→Half

12.4 - 13.1 mi

Top 88%
×2story building
+19ft-37ft

Overall

23520

Females

9637

F50-54

9637

Half→25K

13.1 - 15.5 mi

Top 87%
×4story building
+66ft-88ft

Overall

23045

Females

9415

F50-54

9415

25K→30K

15.5 - 18.6 mi

Top 86%
×9story building
+181ft-148ft

Overall

22914

Females

9417

F50-54

9417

30K→20M

18.6 - 20.0 mi

Top 84%
×5story building
+64ft-50ft

Overall

22491

Females

9247

F50-54

9247

20M→21M

20.0 - 21.0 mi

Top 84%
×8story building
+106ft-24ft

Overall

22371

Females

9208

F50-54

9208

21M→35K

21.0 - 21.8 mi

Top 86%
×7story building
+17ft-86ft

Overall

22780

Females

9472

F50-54

9472

35K→23M

21.8 - 23.0 mi

Top 82%
×5story building
+23ft-63ft

Overall

21717

Females

8919

F50-54

8919

23M→24M

23.0 - 24.0 mi

Top 80%
×6story building
+12ft-82ft

Overall

21170

Females

8656

F50-54

8656

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

20847

Females

8523

F50-54

8523

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

21085

Females

8644

F50-54

8644

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2story building
+22ft-21ft

Overall

19690

Females

7836

F50-54

7836

Passing Analysis

Category:
Athletes Passed
1546
Passed By
595
Net Change
+951
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24021
5K → 10K95363-268#24021#24289
10K → 15K17287+85#24289#24204
15K → 20K20334+169#24204#24035
20K → Half468+38#24035#23997
Half → 25K19512+183#23997#23814
25K → 30K20521+184#23814#23630
30K → 20M9518+77#23630#23553
20M → 21M6713+54#23553#23499
21M → 35K3714+23#23499#23476
35K → 23M948+86#23476#23390
23M → 24M875+82#23390#23308
24M → 40K1047+97#23308#23211
40K → 25.2M354+31#23211#23180
25.2M → Finish1111+110#23180#23070
TOTALS1546595+951
📊

Passing Visuals

Category:
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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