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BOSTON MARATHON 2023

Emily Zhang

Bib: 17463•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
24:05
Rank: #11942
Start → 5K
24:05 | 7:45/mi
10K· 6.21 mi
47:39
Rank: #11513 (+429)
5K → 10K
23:34 | 7:35/mi
15K· 9.32 mi
1:11:22
Rank: #11428 (+85)
10K → 15K
23:43 | 7:38/mi
20K· 12.43 mi
1:35:20
Rank: #11279 (+149)
15K → 20K
23:58 | 7:43/mi
Half· 13.11 mi
1:40:29
Rank: #11232 (+47)
20K → Half
5:09 | 7:33/mi
25K· 15.53 mi
1:59:17
Rank: #11137 (+95)
Half → 25K
18:48 | 7:45/mi
30K· 18.64 mi
2:24:27
Rank: #11160 (-23)
25K → 30K
25:10 | 8:06/mi
20M
2:35:48
Rank: #11275 (-115)
30K → 20M
11:21 | 8:21/mi
21M
2:44:44
Rank: #11372 (-97)
20M → 21M
8:56 | 8:56/mi
35K· 21.75 mi
2:50:42
Rank: #11378 (-6)
21M → 35K
5:58 | 7:59/mi
23M
3:01:00
Rank: #11386 (-8)
35K → 23M
10:18 | 8:14/mi
24M
3:08:49
Rank: #11309 (+77)
23M → 24M
7:49 | 7:49/mi
40K· 24.85 mi
3:15:37
Rank: #11219 (+90)
24M → 40K
6:48 | 7:57/mi
25.2M
3:18:39
Rank: #11203 (+16)
40K → 25.2M
3:02 | 8:48/mi
Finish· 26.22 mi
3:26:54
Rank: #11256 (-53)
25.2M → Finish
8:15 | 8:06/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:29
Pace7:40 /mi
2nd Half
Distance13.11 mi
Time1:46:25
Pace8:07 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:2124:057:4524:05
7:45
-
10K
6.21 mi11:38:5547:397:4023:34
7:35
-0:10
15K
9.32 mi12:02:381:11:227:3923:43
7:38
+0:03
20K
12.43 mi12:26:361:35:207:4023:58
7:43
+0:05
Half
13.11 mi12:31:451:40:297:405:09
7:33
-0:10
25K
15.53 mi12:50:331:59:177:4118:48
7:45
+0:12
30K
18.64 mi13:15:432:24:277:4525:10
8:06
+0:21
20M
20.00 mi13:27:042:35:487:4711:21
8:21
+0:15
21M
21.00 mi13:36:002:44:447:518:56
8:56
+0:35
35K
21.75 mi13:41:582:50:427:515:58
7:59
-0:57
23M
23.00 mi13:52:163:01:007:5210:18
8:14
+0:15
24M
24.00 mi14:00:053:08:497:527:49
7:49
-0:25
40K
24.85 mi14:06:533:15:377:526:48
7:57
+0:08
25.2M
25.20 mi14:09:553:18:397:533:02
8:48
+0:51
Finish
26.22 mi14:18:103:26:547:548:15
8:06
-0:42

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

7:33 /mi

Average Pace

7:54 /mi

Slowest Pace

8:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:03:35

89% of race

Time at Steady Pace

14:23

7% of race

Time at Slower Pace

8:56

4% 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 mi11:15:2124:057:4524:05
7:45
#11942
10K
6.21 mi11:38:5547:397:4023:34
7:35
#11513
15K
9.32 mi12:02:381:11:227:3923:43
7:38
#11428
20K
12.43 mi12:26:361:35:207:4023:58
7:43
#11279
Half
13.11 mi12:31:451:40:297:405:09
7:33
#11232
25K
15.53 mi12:50:331:59:177:4118:48
7:45
#11137
30K
18.64 mi13:15:432:24:277:4525:10
8:06
#11160
20M
20.00 mi13:27:042:35:487:4711:21
8:21
#11275
21M
21.00 mi13:36:002:44:447:518:56
8:56
#11372
35K
21.75 mi13:41:582:50:427:515:58
7:59
#11378
23M
23.00 mi13:52:163:01:007:5210:18
8:14
#11386
24M
24.00 mi14:00:053:08:497:527:49
7:49
#11309
40K
24.85 mi14:06:533:15:377:526:48
7:57
#11219
25.2M
25.20 mi14:09:553:18:397:533:02
8:48
#11203
Finish
26.22 mi14:18:103:26:547:548:15
8:06
#11256
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi119422835283511313(Top 42%)2523(Top 22%)2523(Top 52%)
10K6.21 mi3.10 mi11513+4292611+2242611+22411199(Top 42%)2431(Top 21%)2431(Top 50%)
15K9.32 mi3.11 mi11428+852562+492562+4911313(Top 42%)2523(Top 22%)2523(Top 52%)
20K12.43 mi3.11 mi11279+1492488+742488+7411047(Top 41%)2429(Top 21%)2429(Top 50%)
Half13.11 mi0.68 mi11232+472459+292459+2910700(Top 40%)2238(Top 20%)2238(Top 46%)
25K15.53 mi2.42 mi11137+952427+322427+3210756(Top 40%)2369(Top 21%)2369(Top 49%)
30K18.64 mi3.11 mi11160-232505-782505-7811640(Top 44%)2983(Top 26%)2983(Top 61%)
20M20.00 mi1.36 mi11275-1152586-812586-8112707(Top 48%)3678(Top 32%)3678(Top 75%)
21M21.00 mi1.00 mi11372-972659-732659-7313031(Top 49%)3952(Top 35%)3952(Top 81%)
35K21.75 mi0.75 mi11378-62674-152674-1511952(Top 45%)3388(Top 30%)3388(Top 69%)
23M23.00 mi1.25 mi11386-82713-392713-3911380(Top 43%)3195(Top 28%)3195(Top 65%)
24M24.00 mi1.00 mi11309+772684+292684+299960(Top 37%)2578(Top 23%)2578(Top 53%)
40K24.85 mi0.85 mi11219+902668+162668+169768(Top 37%)2544(Top 22%)2544(Top 52%)
25.2M25.20 mi0.35 mi11203+162673-52673-511351(Top 43%)3363(Top 29%)3363(Top 69%)
Finish26.22 mi1.02 mi11256-532722-492722-4912758(Top 48%)4082(Top 36%)4082(Top 84%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21stories
+97ft-345ft

Overall

11313

Females

2523

F18-39

2523

5K→10K

3.1 - 6.2 mi

Top 42%
×5stories
+79ft-138ft

Overall

11199

Females

2431

F18-39

2431

10K→15K

6.2 - 9.3 mi

Top 42%
×3stories
+67ft-78ft

Overall

11313

Females

2523

F18-39

2523

15K→20K

9.3 - 12.4 mi

Top 41%
×5stories
+106ft-86ft

Overall

11047

Females

2429

F18-39

2429

20K→Half

12.4 - 13.1 mi

Top 40%
×2stories
+19ft-37ft

Overall

10700

Females

2238

F18-39

2238

Half→25K

13.1 - 15.5 mi

Top 40%
×4stories
+66ft-88ft

Overall

10756

Females

2369

F18-39

2369

25K→30K

15.5 - 18.6 mi

Top 44%
×9stories
+181ft-148ft

Overall

11640

Females

2983

F18-39

2983

30K→20M

18.6 - 20.0 mi

Top 48%
×5stories
+64ft-50ft

Overall

12707

Females

3678

F18-39

3678

20M→21M

20.0 - 21.0 mi

Top 49%
×8stories
+106ft-24ft

Overall

13031

Females

3952

F18-39

3952

21M→35K

21.0 - 21.8 mi

Top 45%
×7stories
+17ft-86ft

Overall

11952

Females

3388

F18-39

3388

35K→23M

21.8 - 23.0 mi

Top 43%
×5stories
+23ft-63ft

Overall

11380

Females

3195

F18-39

3195

23M→24M

23.0 - 24.0 mi

Top 37%
×6stories
+12ft-82ft

Overall

9960

Females

2578

F18-39

2578

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

9768

Females

2544

F18-39

2544

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

11351

Females

3363

F18-39

3363

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2stories
+22ft-21ft

Overall

12758

Females

4082

F18-39

4082

Passing Analysis

Category:
Athletes Passed
1986
Passed By
1300
Net Change
+686
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11942
5K → 10K569140+429#11942#11513
10K → 15K233148+85#11513#11428
15K → 20K23687+149#11428#11279
20K → Half558+47#11279#11232
Half → 25K16772+95#11232#11137
25K → 30K171194-23#11137#11160
30K → 20M54169-115#11160#11275
20M → 21M56153-97#11275#11372
21M → 35K5258-6#11372#11378
35K → 23M8694-8#11378#11386
23M → 24M10225+77#11386#11309
24M → 40K11222+90#11309#11219
40K → 25.2M3822+16#11219#11203
25.2M → Finish55108-53#11203#11256
TOTALS19861300+686
📊

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