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BOSTON MARATHON 2023

Caroline Biehl

Bib: 14181•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 26%
Gender (Female)
#0 / 11423
Top 8%
Division (F18-39)
#0 / 4884
Top 14%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:22
Rank: #9812
Start → 5K
23:22 | 7:31/mi
10K· 6.21 mi
46:06
Rank: #9338 (+474)
5K → 10K
22:44 | 7:19/mi
15K· 9.32 mi
1:08:31
Rank: #8852 (+486)
10K → 15K
22:25 | 7:13/mi
20K· 12.43 mi
1:30:59
Rank: #8404 (+448)
15K → 20K
22:28 | 7:14/mi
Half· 13.11 mi
1:35:50
Rank: #8335 (+69)
20K → Half
4:51 | 7:07/mi
25K· 15.53 mi
1:53:23
Rank: #8066 (+269)
Half → 25K
17:33 | 7:14/mi
30K· 18.64 mi
2:16:09
Rank: #7663 (+403)
25K → 30K
22:46 | 7:20/mi
20M
2:26:08
Rank: #7484 (+179)
30K → 20M
9:59 | 7:21/mi
21M
2:33:45
Rank: #7339 (+145)
20M → 21M
7:37 | 7:37/mi
35K· 21.75 mi
2:39:05
Rank: #7270 (+69)
21M → 35K
5:20 | 7:08/mi
23M
2:48:23
Rank: #7162 (+108)
35K → 23M
9:18 | 7:26/mi
24M
2:55:39
Rank: #7074 (+88)
23M → 24M
7:16 | 7:16/mi
40K· 24.85 mi
3:01:57
Rank: #6994 (+80)
24M → 40K
6:18 | 7:22/mi
25.2M
3:04:37
Rank: #6936 (+58)
40K → 25.2M
2:40 | 7:44/mi
Finish· 26.22 mi
3:11:50
Rank: #6862 (+74)
25.2M → Finish
7:13 | 7:05/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:35:50
Pace7:19 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:36:00
Pace7:19 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:5923:227:3123:22
7:31
-
10K
6.21 mi11:15:4346:067:2522:44
7:19
-0:12
15K
9.32 mi11:38:081:08:317:2122:25
7:13
-0:06
20K
12.43 mi12:00:361:30:597:1922:28
7:14
+0:01
Half
13.11 mi12:05:271:35:507:194:51
7:07
-0:07
25K
15.53 mi12:23:001:53:237:1817:33
7:14
+0:07
30K
18.64 mi12:45:462:16:097:1822:46
7:20
+0:06
20M
20.00 mi12:55:452:26:087:189:59
7:21
+0:01
21M
21.00 mi13:03:222:33:457:197:37
7:37
+0:16
35K
21.75 mi13:08:422:39:057:195:20
7:08
-0:29
23M
23.00 mi13:18:002:48:237:199:18
7:26
+0:18
24M
24.00 mi13:25:162:55:397:197:16
7:16
-0:10
40K
24.85 mi13:31:343:01:577:196:18
7:22
+0:06
25.2M
25.20 mi13:34:143:04:377:202:40
7:44
+0:22
Finish
26.22 mi13:41:273:11:507:197:13
7:05
-0:39

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

7:05 /mi

Average Pace

7:19 /mi

Slowest Pace

7:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:38:11

82% of race

Time at Steady Pace

33:39

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:19 /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 mi10:52:5923:227:3123:22
7:31
#9812
10K
6.21 mi11:15:4346:067:2522:44
7:19
#9338
15K
9.32 mi11:38:081:08:317:2122:25
7:13
#8852
20K
12.43 mi12:00:361:30:597:1922:28
7:14
#8404
Half
13.11 mi12:05:271:35:507:194:51
7:07
#8335
25K
15.53 mi12:23:001:53:237:1817:33
7:14
#8066
30K
18.64 mi12:45:462:16:097:1822:46
7:20
#7663
20M
20.00 mi12:55:452:26:087:189:59
7:21
#7484
21M
21.00 mi13:03:222:33:457:197:37
7:37
#7339
35K
21.75 mi13:08:422:39:057:195:20
7:08
#7270
23M
23.00 mi13:18:002:48:237:199:18
7:26
#7162
24M
24.00 mi13:25:162:55:397:197:16
7:16
#7074
40K
24.85 mi13:31:343:01:577:196:18
7:22
#6994
25.2M
25.20 mi13:34:143:04:377:202:40
7:44
#6936
Finish
26.22 mi13:41:273:11:507:197:13
7:05
#6862
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9812175717577909(Top 30%)1038(Top 9%)1038(Top 21%)
10K6.21 mi3.10 mi9338+4741544+2131544+2138988(Top 34%)1398(Top 12%)1398(Top 29%)
15K9.32 mi3.11 mi8852+4861368+1761368+1767909(Top 30%)1038(Top 9%)1038(Top 21%)
20K12.43 mi3.11 mi8404+4481199+1691199+1697311(Top 27%)870(Top 8%)870(Top 18%)
Half13.11 mi0.68 mi8335+691175+241175+247277(Top 27%)843(Top 7%)843(Top 17%)
25K15.53 mi2.42 mi8066+2691099+761099+766904(Top 26%)807(Top 7%)807(Top 17%)
30K18.64 mi3.11 mi7663+403983+116983+1166201(Top 23%)683(Top 6%)683(Top 14%)
20M20.00 mi1.36 mi7484+179950+33950+335928(Top 22%)692(Top 6%)692(Top 14%)
21M21.00 mi1.00 mi7339+145915+35915+355220(Top 20%)591(Top 5%)591(Top 12%)
35K21.75 mi0.75 mi7270+69904+11904+116128(Top 23%)799(Top 7%)799(Top 16%)
23M23.00 mi1.25 mi7162+108889+15889+156045(Top 23%)828(Top 7%)828(Top 17%)
24M24.00 mi1.00 mi7074+88882+7882+76176(Top 23%)968(Top 8%)968(Top 20%)
40K24.85 mi0.85 mi6994+80875+7875+75917(Top 22%)948(Top 8%)948(Top 19%)
25.2M25.20 mi0.35 mi6936+58872+3872+35116(Top 19%)761(Top 7%)761(Top 16%)
Finish26.22 mi1.02 mi6862+74870+2870+25744(Top 22%)980(Top 9%)980(Top 20%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21stories
+97ft-345ft

Overall

7909

Females

1038

F18-39

1038

5K→10K

3.1 - 6.2 mi

Top 34%
×5stories
+79ft-138ft

Overall

8988

Females

1398

F18-39

1398

10K→15K

6.2 - 9.3 mi

Top 30%
×3stories
+67ft-78ft

Overall

7909

Females

1038

F18-39

1038

15K→20K

9.3 - 12.4 mi

Top 27%
×5stories
+106ft-86ft

Overall

7311

Females

870

F18-39

870

20K→Half

12.4 - 13.1 mi

Top 27%
×2stories
+19ft-37ft

Overall

7277

Females

843

F18-39

843

Half→25K

13.1 - 15.5 mi

Top 26%
×4stories
+66ft-88ft

Overall

6904

Females

807

F18-39

807

25K→30K

15.5 - 18.6 mi

Top 23%
×9stories
+181ft-148ft

Overall

6201

Females

683

F18-39

683

30K→20M

18.6 - 20.0 mi

Top 22%
×5stories
+64ft-50ft

Overall

5928

Females

692

F18-39

692

20M→21M

20.0 - 21.0 mi

Top 20%
×8stories
+106ft-24ft

Overall

5220

Females

591

F18-39

591

21M→35K

21.0 - 21.8 mi

Top 23%
×7stories
+17ft-86ft

Overall

6128

Females

799

F18-39

799

35K→23M

21.8 - 23.0 mi

Top 23%
×5stories
+23ft-63ft

Overall

6045

Females

828

F18-39

828

23M→24M

23.0 - 24.0 mi

Top 23%
×6stories
+12ft-82ft

Overall

6176

Females

968

F18-39

968

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

5917

Females

948

F18-39

948

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5116

Females

761

F18-39

761

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2stories
+22ft-21ft

Overall

5744

Females

980

F18-39

980

Passing Analysis

Category:
Athletes Passed
3204
Passed By
254
Net Change
+2950
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9812
5K → 10K585111+474#9812#9338
10K → 15K50115+486#9338#8852
15K → 20K4546+448#8852#8404
20K → Half701+69#8404#8335
Half → 25K28415+269#8335#8066
25K → 30K4074+403#8066#7663
30K → 20M1845+179#7663#7484
20M → 21M1538+145#7484#7339
21M → 35K8112+69#7339#7270
35K → 23M12820+108#7270#7162
23M → 24M10214+88#7162#7074
24M → 40K9818+80#7074#6994
40K → 25.2M613+58#6994#6936
25.2M → Finish9622+74#6936#6862
TOTALS3204254+2950
📊

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