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BOSTON MARATHON 2023

Lili Zhang

Bib: 11964•F

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 42%
Gender (Female)
#0 / 11423
Top 24%
Division (F18-39)
#0 / 4884
Top 40%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:06
Rank: #11989
Start → 5K
24:06 | 7:45/mi
10K· 6.21 mi
47:53
Rank: #11876 (+113)
5K → 10K
23:47 | 7:39/mi
15K· 9.32 mi
1:12:19
Rank: #12305 (-429)
10K → 15K
24:26 | 7:52/mi
20K· 12.43 mi
1:37:11
Rank: #12578 (-273)
15K → 20K
24:52 | 8:00/mi
Half· 13.11 mi
1:42:50
Rank: #12808 (-230)
20K → Half
5:39 | 8:17/mi
25K· 15.53 mi
2:02:24
Rank: #12863 (-55)
Half → 25K
19:34 | 8:04/mi
30K· 18.64 mi
2:27:47
Rank: #12710 (+153)
25K → 30K
25:23 | 8:10/mi
20M
2:39:03
Rank: #12640 (+70)
30K → 20M
11:16 | 8:17/mi
21M
2:47:42
Rank: #12544 (+96)
20M → 21M
8:39 | 8:39/mi
35K· 21.75 mi
2:53:51
Rank: #12582 (-38)
21M → 35K
6:09 | 8:13/mi
23M
3:03:16
Rank: #12207 (+375)
35K → 23M
9:25 | 7:31/mi
24M
3:10:06
Rank: #11754 (+453)
23M → 24M
6:50 | 6:50/mi
40K· 24.85 mi
3:16:15
Rank: #11441 (+313)
24M → 40K
6:09 | 7:12/mi
25.2M
3:19:00
Rank: #11335 (+106)
40K → 25.2M
2:45 | 7:58/mi
Finish· 26.22 mi
3:26:42
Rank: #11196 (+139)
25.2M → Finish
7:42 | 7:33/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:50
Pace7:51 /mi
2nd Half
Distance13.11 mi
Time1:43:52
Pace7:55 /mi
📊Positive Split: 1.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:5124:067:4524:06
7:45
-
10K
6.21 mi11:16:3847:537:4223:47
7:39
-0:06
15K
9.32 mi11:41:041:12:197:4624:26
7:52
+0:13
20K
12.43 mi12:05:561:37:117:4924:52
8:00
+0:08
Half
13.11 mi12:11:351:42:507:515:39
8:17
+0:17
25K
15.53 mi12:31:092:02:247:5319:34
8:04
-0:13
30K
18.64 mi12:56:322:27:477:5625:23
8:10
+0:06
20M
20.00 mi13:07:482:39:037:5711:16
8:17
+0:07
21M
21.00 mi13:16:272:47:427:598:39
8:39
+0:22
35K
21.75 mi13:22:362:53:518:006:09
8:13
-0:26
23M
23.00 mi13:32:013:03:167:589:25
7:31
-0:42
24M
24.00 mi13:38:513:10:067:556:50
6:50
-0:41
40K
24.85 mi13:45:003:16:157:546:09
7:12
+0:22
25.2M
25.20 mi13:47:453:19:007:542:45
7:58
+0:46
Finish
26.22 mi13:55:273:26:427:537:42
7:33
-0:25

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

6:50 /mi

Average Pace

7:53 /mi

Slowest Pace

8:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

53:53

26% of race

Time at Steady Pace

2:01:06

59% of race

Time at Slower Pace

31:43

15% of race

Average Pace: 7:53 /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 mi10:52:5124:067:4524:06
7:45
#11989
10K
6.21 mi11:16:3847:537:4223:47
7:39
#11876
15K
9.32 mi11:41:041:12:197:4624:26
7:52
#12305
20K
12.43 mi12:05:561:37:117:4924:52
8:00
#12578
Half
13.11 mi12:11:351:42:507:515:39
8:17
#12808
25K
15.53 mi12:31:092:02:247:5319:34
8:04
#12863
30K
18.64 mi12:56:322:27:477:5625:23
8:10
#12710
20M
20.00 mi13:07:482:39:037:5711:16
8:17
#12640
21M
21.00 mi13:16:272:47:427:598:39
8:39
#12544
35K
21.75 mi13:22:362:53:518:006:09
8:13
#12582
23M
23.00 mi13:32:013:03:167:589:25
7:31
#12207
24M
24.00 mi13:38:513:10:067:556:50
6:50
#11754
40K
24.85 mi13:45:003:16:157:546:09
7:12
#11441
25.2M
25.20 mi13:47:453:19:007:542:45
7:58
#11335
Finish
26.22 mi13:55:273:26:427:537:42
7:33
#11196
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi119892861286113233(Top 50%)3622(Top 32%)3622(Top 74%)
10K6.21 mi3.10 mi11876+1132804+572804+5711848(Top 45%)2783(Top 24%)2783(Top 57%)
15K9.32 mi3.11 mi12305-4293067-2633067-26313233(Top 50%)3622(Top 32%)3622(Top 74%)
20K12.43 mi3.11 mi12578-2733246-1793246-17913460(Top 51%)3793(Top 33%)3793(Top 78%)
Half13.11 mi0.68 mi12808-2303366-1203366-12016363(Top 61%)5495(Top 48%)5495(Top 113%)
25K15.53 mi2.42 mi12863-553435-693435-6913306(Top 50%)3804(Top 33%)3804(Top 78%)
30K18.64 mi3.11 mi12710+1533381+543381+5412136(Top 46%)3261(Top 29%)3261(Top 67%)
20M20.00 mi1.36 mi12640+703357+243357+2412305(Top 46%)3456(Top 30%)3456(Top 71%)
21M21.00 mi1.00 mi12544+963320+373320+3711366(Top 43%)3064(Top 27%)3064(Top 63%)
35K21.75 mi0.75 mi12582-383358-383358-3813591(Top 51%)4326(Top 38%)4326(Top 89%)
23M23.00 mi1.25 mi12207+3753171+1873171+1876577(Top 25%)1028(Top 9%)1028(Top 21%)
24M24.00 mi1.00 mi11754+4532925+2462925+2463879(Top 15%)337(Top 3%)337(Top 7%)
40K24.85 mi0.85 mi11441+3132780+1452780+1454900(Top 18%)630(Top 6%)630(Top 13%)
25.2M25.20 mi0.35 mi11335+1062731+492731+496468(Top 24%)1252(Top 11%)1252(Top 26%)
Finish26.22 mi1.02 mi11196+1392685+462685+468996(Top 34%)2247(Top 20%)2247(Top 46%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21stories
+97ft-345ft

Overall

13233

Females

3622

F18-39

3622

5K→10K

3.1 - 6.2 mi

Top 45%
×5stories
+79ft-138ft

Overall

11848

Females

2783

F18-39

2783

10K→15K

6.2 - 9.3 mi

Top 50%
×3stories
+67ft-78ft

Overall

13233

Females

3622

F18-39

3622

15K→20K

9.3 - 12.4 mi

Top 51%
×5stories
+106ft-86ft

Overall

13460

Females

3793

F18-39

3793

20K→Half

12.4 - 13.1 mi

Top 61%
×2stories
+19ft-37ft

Overall

16363

Females

5495

F18-39

5495

Half→25K

13.1 - 15.5 mi

Top 50%
×4stories
+66ft-88ft

Overall

13306

Females

3804

F18-39

3804

25K→30K

15.5 - 18.6 mi

Top 46%
×9stories
+181ft-148ft

Overall

12136

Females

3261

F18-39

3261

30K→20M

18.6 - 20.0 mi

Top 46%
×5stories
+64ft-50ft

Overall

12305

Females

3456

F18-39

3456

20M→21M

20.0 - 21.0 mi

Top 43%
×8stories
+106ft-24ft

Overall

11366

Females

3064

F18-39

3064

21M→35K

21.0 - 21.8 mi

Top 51%
×7stories
+17ft-86ft

Overall

13591

Females

4326

F18-39

4326

35K→23M

21.8 - 23.0 mi

Top 25%
×5stories
+23ft-63ft

Overall

6577

Females

1028

F18-39

1028

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

3879

Females

337

F18-39

337

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

4900

Females

630

F18-39

630

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6468

Females

1252

F18-39

1252

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2stories
+22ft-21ft

Overall

8996

Females

2247

F18-39

2247

Passing Analysis

Category:
Athletes Passed
2650
Passed By
1857
Net Change
+793
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11989
5K → 10K360247+113#11989#11876
10K → 15K71500-429#11876#12305
15K → 20K96369-273#12305#12578
20K → Half5235-230#12578#12808
Half → 25K132187-55#12808#12863
25K → 30K264111+153#12863#12710
30K → 20M13161+70#12710#12640
20M → 21M14549+96#12640#12544
21M → 35K3977-38#12544#12582
35K → 23M3750+375#12582#12207
23M → 24M4530+453#12207#11754
24M → 40K3130+313#11754#11441
40K → 25.2M1082+106#11441#11335
25.2M → Finish15819+139#11335#11196
TOTALS26501857+793
📊

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