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BOSTON MARATHON 2023

Liying Zhao

Bib: 22208•F

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0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:50
Rank: #18482
Start → 5K
26:50 | 8:38/mi
10K· 6.21 mi
53:22
Rank: #18474 (+8)
5K → 10K
26:32 | 8:32/mi
15K· 9.32 mi
1:20:31
Rank: #18692 (-218)
10K → 15K
27:09 | 8:44/mi
20K· 12.43 mi
1:47:31
Rank: #18518 (+174)
15K → 20K
27:00 | 8:41/mi
Half· 13.11 mi
1:53:18
Rank: #18469 (+49)
20K → Half
5:47 | 8:29/mi
25K· 15.53 mi
2:15:08
Rank: #18575 (-106)
Half → 25K
21:50 | 9:00/mi
30K· 18.64 mi
2:45:27
Rank: #18983 (-408)
25K → 30K
30:19 | 9:45/mi
20M
2:59:10
Rank: #19163 (-180)
30K → 20M
13:43 | 10:06/mi
21M
3:10:02
Rank: #19284 (-121)
20M → 21M
10:52 | 10:52/mi
35K· 21.75 mi
3:17:05
Rank: #19304 (-20)
21M → 35K
7:03 | 9:25/mi
23M
3:29:39
Rank: #19377 (-73)
35K → 23M
12:34 | 10:02/mi
24M
3:39:56
Rank: #19525 (-148)
23M → 24M
10:17 | 10:17/mi
40K· 24.85 mi
3:48:36
Rank: #19568 (-43)
24M → 40K
8:40 | 10:08/mi
25.2M
3:52:46
Rank: #19656 (-88)
40K → 25.2M
4:10 | 12:05/mi
Finish· 26.22 mi
4:02:46
Rank: #19731 (-75)
25.2M → Finish
10:00 | 9:49/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:18
Pace8:39 /mi
2nd Half
Distance13.11 mi
Time2:09:28
Pace9:53 /mi
📊Positive Split: 14.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:2826:508:3826:50
8:38
-
10K
6.21 mi11:50:0053:228:3526:32
8:32
-0:06
15K
9.32 mi12:17:091:20:318:3827:09
8:44
+0:12
20K
12.43 mi12:44:091:47:318:3927:00
8:41
-0:03
Half
13.11 mi12:49:561:53:188:395:47
8:29
-0:12
25K
15.53 mi13:11:462:15:088:4221:50
9:00
+0:31
30K
18.64 mi13:42:052:45:278:5330:19
9:45
+0:45
20M
20.00 mi13:55:482:59:108:5713:43
10:06
+0:21
21M
21.00 mi14:06:403:10:029:0310:52
10:52
+0:46
35K
21.75 mi14:13:433:17:059:047:03
9:25
-1:27
23M
23.00 mi14:26:173:29:399:0712:34
10:02
+0:37
24M
24.00 mi14:36:343:39:569:1010:17
10:17
+0:15
40K
24.85 mi14:45:143:48:369:128:40
10:08
-0:09
25.2M
25.20 mi14:49:243:52:469:144:10
12:05
+1:57
Finish
26.22 mi14:59:244:02:469:1610:00
9:49
-2:16

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

8:29 /mi

Average Pace

9:16 /mi

Slowest Pace

12:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:15:08

56% of race

Time at Steady Pace

1:22:19

34% of race

Time at Slower Pace

25:19

10% of race

Average Pace: 9:16 /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 mi11:23:2826:508:3826:50
8:38
#18482
10K
6.21 mi11:50:0053:228:3526:32
8:32
#18474
15K
9.32 mi12:17:091:20:318:3827:09
8:44
#18692
20K
12.43 mi12:44:091:47:318:3927:00
8:41
#18518
Half
13.11 mi12:49:561:53:188:395:47
8:29
#18469
25K
15.53 mi13:11:462:15:088:4221:50
9:00
#18575
30K
18.64 mi13:42:052:45:278:5330:19
9:45
#18983
20M
20.00 mi13:55:482:59:108:5713:43
10:06
#19163
21M
21.00 mi14:06:403:10:029:0310:52
10:52
#19284
35K
21.75 mi14:13:433:17:059:047:03
9:25
#19304
23M
23.00 mi14:26:173:29:399:0712:34
10:02
#19377
24M
24.00 mi14:36:343:39:569:1010:17
10:17
#19525
40K
24.85 mi14:45:143:48:369:128:40
10:08
#19568
25.2M
25.20 mi14:49:243:52:469:144:10
12:05
#19656
Finish
26.22 mi14:59:244:02:469:1610:00
9:49
#19731
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi184826863686319189(Top 72%)7212(Top 63%)7212(Top 397%)
10K6.21 mi3.10 mi18474+86814+496814+4918508(Top 70%)6774(Top 59%)6774(Top 373%)
15K9.32 mi3.11 mi18692-2186935-1216935-12119189(Top 72%)7212(Top 63%)7212(Top 397%)
20K12.43 mi3.11 mi18518+1746814+1216814+12118077(Top 68%)6556(Top 57%)6556(Top 361%)
Half13.11 mi0.68 mi18469+496787+276787+2717649(Top 66%)6286(Top 55%)6286(Top 346%)
25K15.53 mi2.42 mi18575-1066877-906877-9018996(Top 71%)7132(Top 62%)7132(Top 393%)
30K18.64 mi3.11 mi18983-4087129-2527129-25220324(Top 76%)7955(Top 70%)7955(Top 438%)
20M20.00 mi1.36 mi19163-1807249-1207249-12020736(Top 78%)8270(Top 72%)8270(Top 455%)
21M21.00 mi1.00 mi19284-1217333-847333-8420538(Top 77%)8211(Top 72%)8211(Top 452%)
35K21.75 mi0.75 mi19304-207352-197352-1919644(Top 74%)7729(Top 68%)7729(Top 425%)
23M23.00 mi1.25 mi19377-737394-427394-4220098(Top 75%)8011(Top 70%)8011(Top 441%)
24M24.00 mi1.00 mi19525-1487499-1057499-10521525(Top 81%)8857(Top 78%)8857(Top 487%)
40K24.85 mi0.85 mi19568-437527-287527-2820340(Top 76%)8245(Top 72%)8245(Top 454%)
25.2M25.20 mi0.35 mi19656-887585-587585-5822651(Top 85%)9469(Top 83%)9469(Top 521%)
Finish26.22 mi1.02 mi19731-757637-527637-5221201(Top 80%)8658(Top 76%)8658(Top 476%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21stories
+97ft-345ft

Overall

19189

Females

7212

F45-49

7212

5K→10K

3.1 - 6.2 mi

Top 70%
×5stories
+79ft-138ft

Overall

18508

Females

6774

F45-49

6774

10K→15K

6.2 - 9.3 mi

Top 72%
×3stories
+67ft-78ft

Overall

19189

Females

7212

F45-49

7212

15K→20K

9.3 - 12.4 mi

Top 68%
×5stories
+106ft-86ft

Overall

18077

Females

6556

F45-49

6556

20K→Half

12.4 - 13.1 mi

Top 66%
×2stories
+19ft-37ft

Overall

17649

Females

6286

F45-49

6286

Half→25K

13.1 - 15.5 mi

Top 71%
×4stories
+66ft-88ft

Overall

18996

Females

7132

F45-49

7132

25K→30K

15.5 - 18.6 mi

Top 76%
×9stories
+181ft-148ft

Overall

20324

Females

7955

F45-49

7955

30K→20M

18.6 - 20.0 mi

Top 78%
×5stories
+64ft-50ft

Overall

20736

Females

8270

F45-49

8270

20M→21M

20.0 - 21.0 mi

Top 77%
×8stories
+106ft-24ft

Overall

20538

Females

8211

F45-49

8211

21M→35K

21.0 - 21.8 mi

Top 74%
×7stories
+17ft-86ft

Overall

19644

Females

7729

F45-49

7729

35K→23M

21.8 - 23.0 mi

Top 75%
×5stories
+23ft-63ft

Overall

20098

Females

8011

F45-49

8011

23M→24M

23.0 - 24.0 mi

Top 81%
×6stories
+12ft-82ft

Overall

21525

Females

8857

F45-49

8857

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

20340

Females

8245

F45-49

8245

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

22651

Females

9469

F45-49

9469

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2stories
+22ft-21ft

Overall

21201

Females

8658

F45-49

8658

Passing Analysis

Category:
Athletes Passed
1177
Passed By
2426
Net Change
-1249
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18482
5K → 10K337329+8#18482#18474
10K → 15K102320-218#18474#18692
15K → 20K24672+174#18692#18518
20K → Half6112+49#18518#18469
Half → 25K102208-106#18469#18575
25K → 30K71479-408#18575#18983
30K → 20M41221-180#18983#19163
20M → 21M43164-121#19163#19284
21M → 35K3252-20#19284#19304
35K → 23M54127-73#19304#19377
23M → 24M28176-148#19377#19525
24M → 40K3275-43#19525#19568
40K → 25.2M795-88#19568#19656
25.2M → Finish2196-75#19656#19731
TOTALS11772426-1249
📊

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