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BOSTON MARATHON 2023

Lauren Culbertson

Bib: 9117•F

NY

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 34%
Gender (Female)
#0 / 11423
Top 15%
Division (F18-39)
#0 / 4884
Top 26%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:46/mi
24:07
↑ 97↓ 3451.5%
10K· 6.21 mi
7:28/mi
47:20
↑ 79↓ 1380.4%
15K· 9.32 mi
7:22/mi
1:10:14
↑ 67↓ 78
20K· 12.43 mi
7:22/mi
1:33:06
↑ 106↓ 860.1%
Half· 13.11 mi
7:23/mi
1:38:08
↑ 19↓ 370.5%
25K· 15.53 mi
7:28/mi
1:56:15
↑ 66↓ 880.2%
30K· 18.64 mi
7:36/mi
2:19:52
↑ 181↓ 1480.2%
20M
7:43/mi
2:30:21
↑ 64↓ 500.2%
21M
8:13/mi
2:38:34
↑ 106↓ 241.6%
35K· 21.75 mi
7:40/mi
2:44:18
↑ 17↓ 861.7%
23M
8:00/mi
2:54:19
↑ 23↓ 630.6%
24M
7:45/mi
3:02:04
↓ 821.3%
40K· 24.85 mi
7:57/mi
3:08:52
↓ 200.3%
25.2M
8:22/mi
3:11:45
↑ 13↓ 160.2%
Finish· 26.22 mi
7:34/mi
3:19:28
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:08
Pace7:29 /mi
2nd Half
Distance13.11 mi
Time1:41:20
Pace7:44 /mi
📊Positive Split: 3.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:3724:077:4624:07
7:46
-
10K
6.21 mi11:15:5047:207:3723:13
7:28
-0:18
15K
9.32 mi11:38:441:10:147:3222:54
7:22
-0:06
20K
12.43 mi12:01:361:33:067:2922:52
7:22
0:00
Half
13.11 mi12:06:381:38:087:295:02
7:23
+0:01
25K
15.53 mi12:24:451:56:157:2918:07
7:28
+0:05
30K
18.64 mi12:48:222:19:527:3023:37
7:36
+0:08
20M
20.00 mi12:58:512:30:217:3110:29
7:43
+0:07
21M
21.00 mi13:07:042:38:347:338:13
8:13
+0:30
35K
21.75 mi13:12:482:44:187:335:44
7:40
-0:33
23M
23.00 mi13:22:492:54:197:3510:01
8:00
+0:20
24M
24.00 mi13:30:343:02:047:357:45
7:45
-0:15
40K
24.85 mi13:37:223:08:527:366:48
7:57
+0:12
25.2M
25.20 mi13:40:153:11:457:372:53
8:22
+0:25
Finish
26.22 mi13:47:583:19:287:377:43
7:34
-0:48

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

7:22 /mi

Average Pace

7:37 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:08:22

94% of race

Time at Steady Pace

11:06

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:36 /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 mi10:52:3724:077:4624:07
7:46
#12027
10K
6.21 mi11:15:5047:207:3723:13
7:28
#11082
15K
9.32 mi11:38:441:10:147:3222:54
7:22
#10386
20K
12.43 mi12:01:361:33:067:2922:52
7:22
#9755
Half
13.11 mi12:06:381:38:087:295:02
7:23
#9714
25K
15.53 mi12:24:451:56:157:2918:07
7:28
#9504
30K
18.64 mi12:48:222:19:527:3023:37
7:36
#9188
20M
20.00 mi12:58:512:30:217:3110:29
7:43
#9081
21M
21.00 mi13:07:042:38:347:338:13
8:13
#9039
35K
21.75 mi13:12:482:44:187:335:44
7:40
#9053
23M
23.00 mi13:22:492:54:197:3510:01
8:00
#9074
24M
24.00 mi13:30:343:02:047:357:45
7:45
#9066
40K
24.85 mi13:37:223:08:527:366:48
7:57
#9061
25.2M
25.20 mi13:40:153:11:457:372:53
8:22
#9048
Finish
26.22 mi13:47:583:19:287:377:43
7:34
#9040
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi12027288328839116(Top 34%)1492(Top 13%)1492(Top 31%)
10K6.21 mi3.10 mi11082+9452367+5162367+51610247(Top 38%)1929(Top 17%)1929(Top 39%)
15K9.32 mi3.11 mi10386+6962005+3622005+3629116(Top 34%)1492(Top 13%)1492(Top 31%)
20K12.43 mi3.11 mi9755+6311731+2741731+2748239(Top 31%)1196(Top 10%)1196(Top 24%)
Half13.11 mi0.68 mi9714+411713+181713+189309(Top 35%)1601(Top 14%)1601(Top 33%)
25K15.53 mi2.42 mi9504+2101648+651648+658592(Top 32%)1383(Top 12%)1383(Top 28%)
30K18.64 mi3.11 mi9188+3161562+861562+867959(Top 30%)1291(Top 11%)1291(Top 26%)
20M20.00 mi1.36 mi9081+1071541+211541+218317(Top 31%)1521(Top 13%)1521(Top 31%)
21M21.00 mi1.00 mi9039+421545-41545-48720(Top 33%)1805(Top 16%)1805(Top 37%)
35K21.75 mi0.75 mi9053-141563-181563-189724(Top 37%)2228(Top 20%)2228(Top 46%)
23M23.00 mi1.25 mi9074-211600-371600-379745(Top 37%)2372(Top 21%)2372(Top 49%)
24M24.00 mi1.00 mi9066+81618-181618-189440(Top 35%)2301(Top 20%)2301(Top 47%)
40K24.85 mi0.85 mi9061+51633-151633-159745(Top 37%)2521(Top 22%)2521(Top 52%)
25.2M25.20 mi0.35 mi9048+131639-61639-68714(Top 33%)2117(Top 19%)2117(Top 43%)
Finish26.22 mi1.02 mi9040+81664-251664-259118(Top 34%)2288(Top 20%)2288(Top 47%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21story building
+97ft-345ft

Overall

9116

Females

1492

F18-39

1492

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

10247

Females

1929

F18-39

1929

10K→15K

6.2 - 9.3 mi

Top 34%
×3story building
+67ft-78ft

Overall

9116

Females

1492

F18-39

1492

15K→20K

9.3 - 12.4 mi

Top 31%
×5story building
+106ft-86ft

Overall

8239

Females

1196

F18-39

1196

20K→Half

12.4 - 13.1 mi

Top 35%
×2story building
+19ft-37ft

Overall

9309

Females

1601

F18-39

1601

Half→25K

13.1 - 15.5 mi

Top 32%
×4story building
+66ft-88ft

Overall

8592

Females

1383

F18-39

1383

25K→30K

15.5 - 18.6 mi

Top 30%
×9story building
+181ft-148ft

Overall

7959

Females

1291

F18-39

1291

30K→20M

18.6 - 20.0 mi

Top 31%
×5story building
+64ft-50ft

Overall

8317

Females

1521

F18-39

1521

20M→21M

20.0 - 21.0 mi

Top 33%
×8story building
+106ft-24ft

Overall

8720

Females

1805

F18-39

1805

21M→35K

21.0 - 21.8 mi

Top 37%
×7story building
+17ft-86ft

Overall

9724

Females

2228

F18-39

2228

35K→23M

21.8 - 23.0 mi

Top 37%
×5story building
+23ft-63ft

Overall

9745

Females

2372

F18-39

2372

23M→24M

23.0 - 24.0 mi

Top 35%
×6story building
+12ft-82ft

Overall

9440

Females

2301

F18-39

2301

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

9745

Females

2521

F18-39

2521

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

8714

Females

2117

F18-39

2117

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2story building
+22ft-21ft

Overall

9118

Females

2288

F18-39

2288

Passing Analysis

Category:
Athletes Passed
3556*
Passed By
569
Net Change
+2987
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12027
5K → 10K100156+945#12027#11082
10K → 15K71519+696#11082#10386
15K → 20K635*4+631#10386#9755
20K → Half5615+41#9755#9714
Half → 25K23525+210#9714#9504
25K → 30K353*37+316#9504#9188
30K → 20M13326+107#9188#9081
20M → 21M10159+42#9081#9039
21M → 35K4054-14#9039#9053
35K → 23M6788-21#9053#9074
23M → 24M6961+8#9074#9066
24M → 40K5449+5#9066#9061
40K → 25.2M3017+13#9061#9048
25.2M → Finish6759+8#9048#9040
TOTALS3556*569+2987

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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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