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BOSTON MARATHON 2023

Anna Cao

Bib: 16264•F

IL

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 43%
Gender (Female)
#0 / 11423
Top 25%
Division (F18-39)
#0 / 4884
Top 42%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:14
Rank: #12354
Start → 5K
24:14 | 7:48/mi
10K· 6.21 mi
48:18
Rank: #12484 (-130)
5K → 10K
24:04 | 7:45/mi
15K· 9.32 mi
1:12:31
Rank: #12500 (-16)
10K → 15K
24:13 | 7:48/mi
20K· 12.43 mi
1:36:52
Rank: #12361 (+139)
15K → 20K
24:21 | 7:50/mi
Half· 13.11 mi
1:42:07
Rank: #12319 (+42)
20K → Half
5:15 | 7:42/mi
25K· 15.53 mi
2:01:16
Rank: #12231 (+88)
Half → 25K
19:09 | 7:54/mi
30K· 18.64 mi
2:26:17
Rank: #12011 (+220)
25K → 30K
25:01 | 8:03/mi
20M
2:37:32
Rank: #12021 (-10)
30K → 20M
11:15 | 8:17/mi
21M
2:46:17
Rank: #12017 (+4)
20M → 21M
8:45 | 8:45/mi
35K· 21.75 mi
2:52:11
Rank: #11972 (+45)
21M → 35K
5:54 | 7:53/mi
23M
3:02:31
Rank: #11934 (+38)
35K → 23M
10:20 | 8:15/mi
24M
3:10:25
Rank: #11864 (+70)
23M → 24M
7:54 | 7:54/mi
40K· 24.85 mi
3:17:19
Rank: #11793 (+71)
24M → 40K
6:54 | 8:04/mi
25.2M
3:20:09
Rank: #11722 (+71)
40K → 25.2M
2:50 | 8:13/mi
Finish· 26.22 mi
3:27:41
Rank: #11510 (+212)
25.2M → Finish
7:32 | 7:24/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:07
Pace7:47 /mi
2nd Half
Distance13.11 mi
Time1:45:34
Pace8:03 /mi
📊Positive Split: 3.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:4224:147:4824:14
7:48
-
10K
6.21 mi11:38:4648:187:4624:04
7:45
-0:03
15K
9.32 mi12:02:591:12:317:4724:13
7:48
+0:03
20K
12.43 mi12:27:201:36:527:4824:21
7:50
+0:02
Half
13.11 mi12:32:351:42:077:475:15
7:42
-0:08
25K
15.53 mi12:51:442:01:167:4819:09
7:54
+0:12
30K
18.64 mi13:16:452:26:177:5125:01
8:03
+0:09
20M
20.00 mi13:28:002:37:327:5311:15
8:17
+0:14
21M
21.00 mi13:36:452:46:177:558:45
8:45
+0:28
35K
21.75 mi13:42:392:52:117:555:54
7:53
-0:52
23M
23.00 mi13:52:593:02:317:5610:20
8:15
+0:22
24M
24.00 mi14:00:533:10:257:567:54
7:54
-0:21
40K
24.85 mi14:07:473:17:197:566:54
8:04
+0:10
25.2M
25.20 mi14:10:373:20:097:572:50
8:13
+0:09
Finish
26.22 mi14:18:093:27:417:567:32
7:24
-0:49

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

7:24 /mi

Average Pace

7:56 /mi

Slowest Pace

8:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:54:31

84% of race

Time at Steady Pace

24:25

12% of race

Time at Slower Pace

8:45

4% of race

Average Pace: 7:55 /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 mi11:14:4224:147:4824:14
7:48
#12354
10K
6.21 mi11:38:4648:187:4624:04
7:45
#12484
15K
9.32 mi12:02:591:12:317:4724:13
7:48
#12500
20K
12.43 mi12:27:201:36:527:4824:21
7:50
#12361
Half
13.11 mi12:32:351:42:077:475:15
7:42
#12319
25K
15.53 mi12:51:442:01:167:4819:09
7:54
#12231
30K
18.64 mi13:16:452:26:177:5125:01
8:03
#12011
20M
20.00 mi13:28:002:37:327:5311:15
8:17
#12021
21M
21.00 mi13:36:452:46:177:558:45
8:45
#12017
35K
21.75 mi13:42:392:52:117:555:54
7:53
#11972
23M
23.00 mi13:52:593:02:317:5610:20
8:15
#11934
24M
24.00 mi14:00:533:10:257:567:54
7:54
#11864
40K
24.85 mi14:07:473:17:197:566:54
8:04
#11793
25.2M
25.20 mi14:10:373:20:097:572:50
8:13
#11722
Finish
26.22 mi14:18:093:27:417:567:32
7:24
#11510
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi123543073307312697(Top 48%)3286(Top 29%)3286(Top 67%)
10K6.21 mi3.10 mi12484-1303148-753148-7512655(Top 48%)3231(Top 28%)3231(Top 66%)
15K9.32 mi3.11 mi12500-163173-253173-2512697(Top 48%)3286(Top 29%)3286(Top 67%)
20K12.43 mi3.11 mi12361+1393126+473126+4712060(Top 45%)3003(Top 26%)3003(Top 61%)
Half13.11 mi0.68 mi12319+423103+233103+2311904(Top 45%)2856(Top 25%)2856(Top 58%)
25K15.53 mi2.42 mi12231+883070+333070+3311912(Top 45%)3025(Top 26%)3025(Top 62%)
30K18.64 mi3.11 mi12011+2202979+912979+9111329(Top 43%)2804(Top 25%)2804(Top 57%)
20M20.00 mi1.36 mi12021-103015-363015-3612221(Top 46%)3403(Top 30%)3403(Top 70%)
21M21.00 mi1.00 mi12017+43020-53020-511981(Top 45%)3383(Top 30%)3383(Top 69%)
35K21.75 mi0.75 mi11972+453005+153005+1511333(Top 43%)3040(Top 27%)3040(Top 62%)
23M23.00 mi1.25 mi11934+383018-133018-1311563(Top 43%)3280(Top 29%)3280(Top 67%)
24M24.00 mi1.00 mi11864+702990+282990+2810550(Top 40%)2857(Top 25%)2857(Top 58%)
40K24.85 mi0.85 mi11793+712976+142976+1410543(Top 40%)2905(Top 25%)2905(Top 59%)
25.2M25.20 mi0.35 mi11722+712943+332943+337887(Top 30%)1799(Top 16%)1799(Top 37%)
Finish26.22 mi1.02 mi11510+2122857+862857+867785(Top 29%)1745(Top 15%)1745(Top 36%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21stories
+97ft-345ft

Overall

12697

Females

3286

F18-39

3286

5K→10K

3.1 - 6.2 mi

Top 48%
×5stories
+79ft-138ft

Overall

12655

Females

3231

F18-39

3231

10K→15K

6.2 - 9.3 mi

Top 48%
×3stories
+67ft-78ft

Overall

12697

Females

3286

F18-39

3286

15K→20K

9.3 - 12.4 mi

Top 45%
×5stories
+106ft-86ft

Overall

12060

Females

3003

F18-39

3003

20K→Half

12.4 - 13.1 mi

Top 45%
×2stories
+19ft-37ft

Overall

11904

Females

2856

F18-39

2856

Half→25K

13.1 - 15.5 mi

Top 45%
×4stories
+66ft-88ft

Overall

11912

Females

3025

F18-39

3025

25K→30K

15.5 - 18.6 mi

Top 43%
×9stories
+181ft-148ft

Overall

11329

Females

2804

F18-39

2804

30K→20M

18.6 - 20.0 mi

Top 46%
×5stories
+64ft-50ft

Overall

12221

Females

3403

F18-39

3403

20M→21M

20.0 - 21.0 mi

Top 45%
×8stories
+106ft-24ft

Overall

11981

Females

3383

F18-39

3383

21M→35K

21.0 - 21.8 mi

Top 43%
×7stories
+17ft-86ft

Overall

11333

Females

3040

F18-39

3040

35K→23M

21.8 - 23.0 mi

Top 43%
×5stories
+23ft-63ft

Overall

11563

Females

3280

F18-39

3280

23M→24M

23.0 - 24.0 mi

Top 40%
×6stories
+12ft-82ft

Overall

10550

Females

2857

F18-39

2857

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

10543

Females

2905

F18-39

2905

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

7887

Females

1799

F18-39

1799

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2stories
+22ft-21ft

Overall

7785

Females

1745

F18-39

1745

Passing Analysis

Category:
Athletes Passed
2091
Passed By
1247
Net Change
+844
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12354
5K → 10K256386-130#12354#12484
10K → 15K194210-16#12484#12500
15K → 20K250111+139#12500#12361
20K → Half519+42#12361#12319
Half → 25K16678+88#12319#12231
25K → 30K31191+220#12231#12011
30K → 20M106116-10#12011#12021
20M → 21M8985+4#12021#12017
21M → 35K6722+45#12017#11972
35K → 23M10668+38#11972#11934
23M → 24M10434+70#11934#11864
24M → 40K10231+71#11864#11793
40K → 25.2M721+71#11793#11722
25.2M → Finish2175+212#11722#11510
TOTALS20911247+844
📊

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