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BOSTON MARATHON 2023

Lu Zhao

Bib: 22934•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 43%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:42
Rank: #18208
Start → 5K
26:42 | 8:36/mi
10K· 6.21 mi
53:49
Rank: #18896 (-688)
5K → 10K
27:07 | 8:44/mi
15K· 9.32 mi
1:21:31
Rank: #19322 (-426)
10K → 15K
27:42 | 8:55/mi
20K· 12.43 mi
1:49:46
Rank: #19504 (-182)
15K → 20K
28:15 | 9:06/mi
Half· 13.11 mi
1:55:52
Rank: #19541 (-37)
20K → Half
6:06 | 8:56/mi
25K· 15.53 mi
2:18:11
Rank: #19601 (-60)
Half → 25K
22:19 | 9:12/mi
30K· 18.64 mi
2:47:27
Rank: #19511 (+90)
25K → 30K
29:16 | 9:25/mi
20M
3:00:36
Rank: #19508 (+3)
30K → 20M
13:09 | 9:41/mi
21M
3:11:10
Rank: #19527 (-19)
20M → 21M
10:34 | 10:34/mi
35K· 21.75 mi
3:18:27
Rank: #19588 (-61)
21M → 35K
7:17 | 9:44/mi
23M
3:30:31
Rank: #19535 (+53)
35K → 23M
12:04 | 9:38/mi
24M
3:39:29
Rank: #19436 (+99)
23M → 24M
8:58 | 8:58/mi
40K· 24.85 mi
3:47:25
Rank: #19379 (+57)
24M → 40K
7:56 | 9:17/mi
25.2M
3:50:52
Rank: #19352 (+27)
40K → 25.2M
3:27 | 10:00/mi
Finish· 26.22 mi
3:59:57
Rank: #19305 (+47)
25.2M → Finish
9:05 | 8:55/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:52
Pace8:50 /mi
2nd Half
Distance13.11 mi
Time2:04:05
Pace9:28 /mi
📊Positive Split: 7.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:3626:428:3626:42
8:36
-
10K
6.21 mi11:47:4353:498:4027:07
8:44
+0:08
15K
9.32 mi12:15:251:21:318:4527:42
8:55
+0:11
20K
12.43 mi12:43:401:49:468:5028:15
9:06
+0:11
Half
13.11 mi12:49:461:55:528:506:06
8:56
-0:10
25K
15.53 mi13:12:052:18:118:5422:19
9:12
+0:16
30K
18.64 mi13:41:212:47:278:5929:16
9:25
+0:13
20M
20.00 mi13:54:303:00:369:0213:09
9:41
+0:16
21M
21.00 mi14:05:043:11:109:0610:34
10:34
+0:53
35K
21.75 mi14:12:213:18:279:077:17
9:44
-0:50
23M
23.00 mi14:24:253:30:319:0912:04
9:38
-0:06
24M
24.00 mi14:33:233:39:299:098:58
8:58
-0:40
40K
24.85 mi14:41:193:47:259:097:56
9:17
+0:19
25.2M
25.20 mi14:44:463:50:529:103:27
10:00
+0:43
Finish
26.22 mi14:53:513:59:579:109:05
8:55
-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

8:36 /mi

Average Pace

9:10 /mi

Slowest Pace

10:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:36:42

40% of race

Time at Steady Pace

1:36:44

40% of race

Time at Slower Pace

46:31

19% of race

Average Pace: 9:09 /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 mi11:20:3626:428:3626:42
8:36
#18208
10K
6.21 mi11:47:4353:498:4027:07
8:44
#18896
15K
9.32 mi12:15:251:21:318:4527:42
8:55
#19322
20K
12.43 mi12:43:401:49:468:5028:15
9:06
#19504
Half
13.11 mi12:49:461:55:528:506:06
8:56
#19541
25K
15.53 mi13:12:052:18:118:5422:19
9:12
#19601
30K
18.64 mi13:41:212:47:278:5929:16
9:25
#19511
20M
20.00 mi13:54:303:00:369:0213:09
9:41
#19508
21M
21.00 mi14:05:043:11:109:0610:34
10:34
#19527
35K
21.75 mi14:12:213:18:279:077:17
9:44
#19588
23M
23.00 mi14:24:253:30:319:0912:04
9:38
#19535
24M
24.00 mi14:33:233:39:299:098:58
8:58
#19436
40K
24.85 mi14:41:193:47:259:097:56
9:17
#19379
25.2M
25.20 mi14:44:463:50:529:103:27
10:00
#19352
Finish
26.22 mi14:53:513:59:579:109:05
8:55
#19305
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi182086690669020127(Top 76%)7749(Top 68%)7749(Top 951%)
10K6.21 mi3.10 mi18896-6887078-3887078-38819586(Top 74%)7443(Top 65%)7443(Top 913%)
15K9.32 mi3.11 mi19322-4267331-2537331-25320127(Top 76%)7749(Top 68%)7749(Top 951%)
20K12.43 mi3.11 mi19504-1827431-1007431-10020124(Top 76%)7744(Top 68%)7744(Top 950%)
Half13.11 mi0.68 mi19541-377452-217452-2120265(Top 76%)7834(Top 69%)7834(Top 961%)
25K15.53 mi2.42 mi19601-607485-337485-3319881(Top 75%)7633(Top 67%)7633(Top 937%)
30K18.64 mi3.11 mi19511+907434+517434+5119141(Top 72%)7276(Top 64%)7276(Top 893%)
20M20.00 mi1.36 mi19508+37457-237457-2319518(Top 73%)7586(Top 66%)7586(Top 931%)
21M21.00 mi1.00 mi19527-197476-197476-1919823(Top 74%)7837(Top 69%)7837(Top 962%)
35K21.75 mi0.75 mi19588-617514-387514-3820603(Top 77%)8283(Top 73%)8283(Top 1016%)
23M23.00 mi1.25 mi19535+537486+287486+2818892(Top 71%)7354(Top 64%)7354(Top 902%)
24M24.00 mi1.00 mi19436+997443+437443+4317117(Top 64%)6434(Top 56%)6434(Top 789%)
40K24.85 mi0.85 mi19379+577417+267417+2617472(Top 66%)6681(Top 58%)6681(Top 820%)
25.2M25.20 mi0.35 mi19352+277402+157402+1517492(Top 66%)6722(Top 59%)6722(Top 825%)
Finish26.22 mi1.02 mi19305+477385+177385+1717579(Top 66%)6707(Top 59%)6707(Top 823%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21stories
+97ft-345ft

Overall

20127

Females

7749

F55-59

7749

5K→10K

3.1 - 6.2 mi

Top 74%
×5stories
+79ft-138ft

Overall

19586

Females

7443

F55-59

7443

10K→15K

6.2 - 9.3 mi

Top 76%
×3stories
+67ft-78ft

Overall

20127

Females

7749

F55-59

7749

15K→20K

9.3 - 12.4 mi

Top 76%
×5stories
+106ft-86ft

Overall

20124

Females

7744

F55-59

7744

20K→Half

12.4 - 13.1 mi

Top 76%
×2stories
+19ft-37ft

Overall

20265

Females

7834

F55-59

7834

Half→25K

13.1 - 15.5 mi

Top 75%
×4stories
+66ft-88ft

Overall

19881

Females

7633

F55-59

7633

25K→30K

15.5 - 18.6 mi

Top 72%
×9stories
+181ft-148ft

Overall

19141

Females

7276

F55-59

7276

30K→20M

18.6 - 20.0 mi

Top 73%
×5stories
+64ft-50ft

Overall

19518

Females

7586

F55-59

7586

20M→21M

20.0 - 21.0 mi

Top 74%
×8stories
+106ft-24ft

Overall

19823

Females

7837

F55-59

7837

21M→35K

21.0 - 21.8 mi

Top 77%
×7stories
+17ft-86ft

Overall

20603

Females

8283

F55-59

8283

35K→23M

21.8 - 23.0 mi

Top 71%
×5stories
+23ft-63ft

Overall

18892

Females

7354

F55-59

7354

23M→24M

23.0 - 24.0 mi

Top 64%
×6stories
+12ft-82ft

Overall

17117

Females

6434

F55-59

6434

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

17472

Females

6681

F55-59

6681

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

17492

Females

6722

F55-59

6722

25.2M→Finish

25.2 - 26.2 mi

Top 66%
×2stories
+22ft-21ft

Overall

17579

Females

6707

F55-59

6707

Passing Analysis

Category:
Athletes Passed
1173
Passed By
2270
Net Change
-1097
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18208
5K → 10K107795-688#18208#18896
10K → 15K59485-426#18896#19322
15K → 20K101283-182#19322#19504
20K → Half1552-37#19504#19541
Half → 25K102162-60#19541#19601
25K → 30K202112+90#19601#19511
30K → 20M8986+3#19511#19508
20M → 21M7190-19#19508#19527
21M → 35K2485-61#19527#19588
35K → 23M9643+53#19588#19535
23M → 24M11415+99#19535#19436
24M → 40K8023+57#19436#19379
40K → 25.2M3912+27#19379#19352
25.2M → Finish7427+47#19352#19305
TOTALS11732270-1097
📊

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