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BOSTON MARATHON 2023

Yin-Hsiu Liu

Bib: 22562•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F55-59)
#0 / 815
Top 37%
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
8:28/mi
26:17
↑ 97↓ 3451.5%
10K· 6.21 mi
8:24/mi
52:24
↑ 79↓ 1380.4%
15K· 9.32 mi
8:27/mi
1:18:39
↑ 67↓ 78
20K· 12.43 mi
8:46/mi
1:45:54
↑ 106↓ 860.1%
Half· 13.11 mi
10:27/mi
1:53:02
↑ 19↓ 370.5%
25K· 15.53 mi
8:50/mi
2:14:26
↑ 66↓ 880.2%
30K· 18.64 mi
10:23/mi
2:46:41
↑ 181↓ 1480.2%
20M
9:04/mi
2:59:00
↑ 64↓ 500.2%
21M
9:53/mi
3:08:53
↑ 106↓ 241.6%
35K· 21.75 mi
8:40/mi
3:15:22
↑ 17↓ 861.7%
23M
9:22/mi
3:27:06
↑ 23↓ 630.6%
24M
8:48/mi
3:35:54
↓ 821.3%
40K· 24.85 mi
9:16/mi
3:43:49
↓ 200.3%
25.2M
9:49/mi
3:47:12
↑ 13↓ 160.2%
Finish· 26.22 mi
9:08/mi
3:56:30
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:02
Pace8:37 /mi
2nd Half
Distance13.11 mi
Time2:03:28
Pace9:25 /mi
📊Positive Split: 9.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:5726:178:2826:17
8:28
-
10K
6.21 mi11:47:0452:248:2626:07
8:24
-0:04
15K
9.32 mi12:13:191:18:398:2626:15
8:27
+0:03
20K
12.43 mi12:40:341:45:548:3127:15
8:46
+0:19
Half
13.11 mi12:47:421:53:028:377:08
10:27
+1:41
25K
15.53 mi13:09:062:14:268:3921:24
8:50
-1:37
30K
18.64 mi13:41:212:46:418:5732:15
10:23
+1:33
20M
20.00 mi13:53:402:59:008:5712:19
9:04
-1:19
21M
21.00 mi14:03:333:08:539:009:53
9:53
+0:49
35K
21.75 mi14:10:023:15:228:596:29
8:40
-1:13
23M
23.00 mi14:21:463:27:069:0011:44
9:22
+0:42
24M
24.00 mi14:30:343:35:549:008:48
8:48
-0:34
40K
24.85 mi14:38:293:43:499:007:55
9:16
+0:28
25.2M
25.20 mi14:41:523:47:129:013:23
9:49
+0:33
Finish
26.22 mi14:51:103:56:309:029:18
9:08
-0:41

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

8:24 /mi

Average Pace

9:02 /mi

Slowest Pace

10:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:25:08

36% of race

Time at Steady Pace

1:38:43

42% of race

Time at Slower Pace

52:39

22% of race

Average Pace: 9:01 /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 mi11:20:5726:178:2826:17
8:28
#17299
10K
6.21 mi11:47:0452:248:2626:07
8:24
#17436
15K
9.32 mi12:13:191:18:398:2626:15
8:27
#17456
20K
12.43 mi12:40:341:45:548:3127:15
8:46
#17706
Half
13.11 mi12:47:421:53:028:377:08
10:27
#18340
25K
15.53 mi13:09:062:14:268:3921:24
8:50
#18296
30K
18.64 mi13:41:212:46:418:5732:15
10:23
#19321
20M
20.00 mi13:53:402:59:008:5712:19
9:04
#19121
21M
21.00 mi14:03:333:08:539:009:53
9:53
#19028
35K
21.75 mi14:10:023:15:228:596:29
8:40
#18928
23M
23.00 mi14:21:463:27:069:0011:44
9:22
#18860
24M
24.00 mi14:30:343:35:549:008:48
8:48
#18731
40K
24.85 mi14:38:293:43:499:007:55
9:16
#18689
25.2M
25.20 mi14:41:523:47:129:013:23
9:49
#18655
Finish
26.22 mi14:51:103:56:309:029:18
9:08
#18661
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi172996131613117483(Top 66%)6204(Top 54%)6204(Top 761%)
10K6.21 mi3.10 mi17436-1376188-576188-5717639(Top 66%)6268(Top 55%)6268(Top 769%)
15K9.32 mi3.11 mi17456-206195-76195-717483(Top 66%)6204(Top 54%)6204(Top 761%)
20K12.43 mi3.11 mi17706-2506350-1556350-15518531(Top 70%)6815(Top 60%)6815(Top 836%)
Half13.11 mi0.68 mi18340-6346712-3626712-36224161(Top 91%)10013(Top 88%)10013(Top 1229%)
25K15.53 mi2.42 mi18296+446706+66706+618116(Top 68%)6618(Top 58%)6618(Top 812%)
30K18.64 mi3.11 mi19321-10257328-6227328-62221957(Top 82%)8884(Top 78%)8884(Top 1090%)
20M20.00 mi1.36 mi19121+2007223+1057223+10516893(Top 63%)6097(Top 53%)6097(Top 748%)
21M21.00 mi1.00 mi19028+937183+407183+4017627(Top 66%)6548(Top 57%)6548(Top 803%)
35K21.75 mi0.75 mi18928+1007136+477136+4716309(Top 61%)5894(Top 52%)5894(Top 723%)
23M23.00 mi1.25 mi18860+687111+257111+2517846(Top 67%)6783(Top 59%)6783(Top 832%)
24M24.00 mi1.00 mi18731+1297046+657046+6516242(Top 61%)5954(Top 52%)5954(Top 731%)
40K24.85 mi0.85 mi18689+427029+177029+1717391(Top 65%)6631(Top 58%)6631(Top 814%)
25.2M25.20 mi0.35 mi18655+347023+67023+616707(Top 63%)6292(Top 55%)6292(Top 772%)
Finish26.22 mi1.02 mi18661-67028-57028-518615(Top 70%)7245(Top 63%)7245(Top 889%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21story building
+97ft-345ft

Overall

17483

Females

6204

F55-59

6204

5K→10K

3.1 - 6.2 mi

Top 66%
×5story building
+79ft-138ft

Overall

17639

Females

6268

F55-59

6268

10K→15K

6.2 - 9.3 mi

Top 66%
×3story building
+67ft-78ft

Overall

17483

Females

6204

F55-59

6204

15K→20K

9.3 - 12.4 mi

Top 70%
×5story building
+106ft-86ft

Overall

18531

Females

6815

F55-59

6815

20K→Half

12.4 - 13.1 mi

Top 91%
×2story building
+19ft-37ft

Overall

24161

Females

10013

F55-59

10013

Half→25K

13.1 - 15.5 mi

Top 68%
×4story building
+66ft-88ft

Overall

18116

Females

6618

F55-59

6618

25K→30K

15.5 - 18.6 mi

Top 82%
×9story building
+181ft-148ft

Overall

21957

Females

8884

F55-59

8884

30K→20M

18.6 - 20.0 mi

Top 63%
×5story building
+64ft-50ft

Overall

16893

Females

6097

F55-59

6097

20M→21M

20.0 - 21.0 mi

Top 66%
×8story building
+106ft-24ft

Overall

17627

Females

6548

F55-59

6548

21M→35K

21.0 - 21.8 mi

Top 61%
×7story building
+17ft-86ft

Overall

16309

Females

5894

F55-59

5894

35K→23M

21.8 - 23.0 mi

Top 67%
×5story building
+23ft-63ft

Overall

17846

Females

6783

F55-59

6783

23M→24M

23.0 - 24.0 mi

Top 61%
×6story building
+12ft-82ft

Overall

16242

Females

5954

F55-59

5954

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

17391

Females

6631

F55-59

6631

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

16707

Females

6292

F55-59

6292

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2story building
+22ft-21ft

Overall

18615

Females

7245

F55-59

7245

Passing Analysis

Category:
Athletes Passed
1548
Passed By
2910
Net Change
-1362
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17299
5K → 10K245382-137#17299#17436
10K → 15K187207-20#17436#17456
15K → 20K105355-250#17456#17706
20K → Half1635-634#17706#18340
Half → 25K146102+44#18340#18296
25K → 30K231048-1025#18296#19321
30K → 20M2033+200#19321#19121
20M → 21M12633+93#19121#19028
21M → 35K1055+100#19028#18928
35K → 23M10941+68#18928#18860
23M → 24M14011+129#18860#18731
24M → 40K6927+42#18731#18689
40K → 25.2M4410+34#18689#18655
25.2M → Finish4551-6#18655#18661
TOTALS15482910-1362
📊

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