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BOSTON MARATHON 2023

Lauren Clark

Bib: 12325•F

MI

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 27%
Gender (Female)
#0 / 11423
Top 9%
Division (F18-39)
#0 / 4884
Top 17%
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
7:14/mi
22:27
↑ 97↓ 3451.5%
10K· 6.21 mi
7:08/mi
44:38
↑ 79↓ 1380.4%
15K· 9.32 mi
7:08/mi
1:06:48
↑ 67↓ 78
20K· 12.43 mi
7:13/mi
1:29:14
↑ 106↓ 860.1%
Half· 13.11 mi
7:05/mi
1:34:04
↑ 19↓ 370.5%
25K· 15.53 mi
7:15/mi
1:51:38
↑ 66↓ 880.2%
30K· 18.64 mi
7:21/mi
2:14:28
↑ 181↓ 1480.2%
20M
7:25/mi
2:24:33
↑ 64↓ 500.2%
21M
7:50/mi
2:32:23
↑ 106↓ 241.6%
35K· 21.75 mi
7:24/mi
2:37:55
↑ 17↓ 861.7%
23M
7:50/mi
2:47:44
↑ 23↓ 630.6%
24M
7:48/mi
2:55:32
↓ 821.3%
40K· 24.85 mi
8:10/mi
3:02:31
↓ 200.3%
25.2M
8:45/mi
3:05:32
↑ 13↓ 160.2%
Finish· 26.22 mi
7:51/mi
3:13:32
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:04
Pace7:11 /mi
2nd Half
Distance13.11 mi
Time1:39:28
Pace7:35 /mi
📊Positive Split: 5.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:5222:277:1422:27
7:14
-
10K
6.21 mi11:12:0344:387:1122:11
7:08
-0:06
15K
9.32 mi11:34:131:06:487:1022:10
7:08
0:00
20K
12.43 mi11:56:391:29:147:1122:26
7:13
+0:05
Half
13.11 mi12:01:291:34:047:114:50
7:05
-0:08
25K
15.53 mi12:19:031:51:387:1117:34
7:15
+0:10
30K
18.64 mi12:41:532:14:287:1322:50
7:21
+0:06
20M
20.00 mi12:51:582:24:337:1410:05
7:25
+0:04
21M
21.00 mi12:59:482:32:237:157:50
7:50
+0:25
35K
21.75 mi13:05:202:37:557:165:32
7:24
-0:26
23M
23.00 mi13:15:092:47:447:189:49
7:50
+0:26
24M
24.00 mi13:22:572:55:327:197:48
7:48
-0:02
40K
24.85 mi13:29:563:02:317:216:59
8:10
+0:22
25.2M
25.20 mi13:32:573:05:327:223:01
8:45
+0:35
Finish
26.22 mi13:40:573:13:327:238:00
7:51
-0:54

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

7:23 /mi

Slowest Pace

8:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

49:11

25% of race

Time at Steady Pace

1:40:54

52% of race

Time at Slower Pace

43:27

22% of race

Average Pace: 7:23 /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 mi10:49:5222:277:1422:27
7:14
#7667
10K
6.21 mi11:12:0344:387:1122:11
7:08
#7655
15K
9.32 mi11:34:131:06:487:1022:10
7:08
#7542
20K
12.43 mi11:56:391:29:147:1122:26
7:13
#7409
Half
13.11 mi12:01:291:34:047:114:50
7:05
#7382
25K
15.53 mi12:19:031:51:387:1117:34
7:15
#7290
30K
18.64 mi12:41:532:14:287:1322:50
7:21
#7069
20M
20.00 mi12:51:582:24:337:1410:05
7:25
#6991
21M
21.00 mi12:59:482:32:237:157:50
7:50
#6910
35K
21.75 mi13:05:202:37:557:165:32
7:24
#6910
23M
23.00 mi13:15:092:47:447:189:49
7:50
#6953
24M
24.00 mi13:22:572:55:327:197:48
7:48
#7037
40K
24.85 mi13:29:563:02:317:216:59
8:10
#7145
25.2M
25.20 mi13:32:573:05:327:223:01
8:45
#7196
Finish
26.22 mi13:40:573:13:327:238:00
7:51
#7304
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi76678988987381(Top 28%)854(Top 7%)854(Top 17%)
10K6.21 mi3.10 mi7655+12904-6904-67704(Top 29%)960(Top 8%)960(Top 20%)
15K9.32 mi3.11 mi7542+113887+17887+177381(Top 28%)854(Top 7%)854(Top 17%)
20K12.43 mi3.11 mi7409+133854+33854+337238(Top 27%)856(Top 7%)856(Top 18%)
Half13.11 mi0.68 mi7382+27849+5849+57115(Top 27%)807(Top 7%)807(Top 17%)
25K15.53 mi2.42 mi7290+92834+15834+156939(Top 26%)823(Top 7%)823(Top 17%)
30K18.64 mi3.11 mi7069+221797+37797+376317(Top 24%)715(Top 6%)715(Top 15%)
20M20.00 mi1.36 mi6991+78781+16781+166320(Top 24%)794(Top 7%)794(Top 16%)
21M21.00 mi1.00 mi6910+81774+7774+76365(Top 24%)903(Top 8%)903(Top 18%)
35K21.75 mi0.75 mi6910786-12786-127800(Top 29%)1408(Top 12%)1408(Top 29%)
23M23.00 mi1.25 mi6953-43831-45831-458689(Top 33%)1872(Top 16%)1872(Top 38%)
24M24.00 mi1.00 mi7037-84872-41872-419803(Top 37%)2488(Top 22%)2488(Top 51%)
40K24.85 mi0.85 mi7145-108919-47919-4711142(Top 42%)3212(Top 28%)3212(Top 66%)
25.2M25.20 mi0.35 mi7196-51948-29948-2911022(Top 41%)3180(Top 28%)3180(Top 65%)
Finish26.22 mi1.02 mi7304-1081017-691017-6911046(Top 41%)3211(Top 28%)3211(Top 66%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21story building
+97ft-345ft

Overall

7381

Females

854

F18-39

854

5K→10K

3.1 - 6.2 mi

Top 29%
×5story building
+79ft-138ft

Overall

7704

Females

960

F18-39

960

10K→15K

6.2 - 9.3 mi

Top 28%
×3story building
+67ft-78ft

Overall

7381

Females

854

F18-39

854

15K→20K

9.3 - 12.4 mi

Top 27%
×5story building
+106ft-86ft

Overall

7238

Females

856

F18-39

856

20K→Half

12.4 - 13.1 mi

Top 27%
×2story building
+19ft-37ft

Overall

7115

Females

807

F18-39

807

Half→25K

13.1 - 15.5 mi

Top 26%
×4story building
+66ft-88ft

Overall

6939

Females

823

F18-39

823

25K→30K

15.5 - 18.6 mi

Top 24%
×9story building
+181ft-148ft

Overall

6317

Females

715

F18-39

715

30K→20M

18.6 - 20.0 mi

Top 24%
×5story building
+64ft-50ft

Overall

6320

Females

794

F18-39

794

20M→21M

20.0 - 21.0 mi

Top 24%
×8story building
+106ft-24ft

Overall

6365

Females

903

F18-39

903

21M→35K

21.0 - 21.8 mi

Top 29%
×7story building
+17ft-86ft

Overall

7800

Females

1408

F18-39

1408

35K→23M

21.8 - 23.0 mi

Top 33%
×5story building
+23ft-63ft

Overall

8689

Females

1872

F18-39

1872

23M→24M

23.0 - 24.0 mi

Top 37%
×6story building
+12ft-82ft

Overall

9803

Females

2488

F18-39

2488

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

11142

Females

3212

F18-39

3212

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

11022

Females

3180

F18-39

3180

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2story building
+22ft-21ft

Overall

11046

Females

3211

F18-39

3211

Passing Analysis

Category:
Athletes Passed
1430
Passed By
1067
Net Change
+363
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7667
5K → 10K226214+12#7667#7655
10K → 15K19784+113#7655#7542
15K → 20K18047+133#7542#7409
20K → Half4013+27#7409#7382
Half → 25K12432+92#7382#7290
25K → 30K25534+221#7290#7069
30K → 20M9719+78#7069#6991
20M → 21M10019+81#6991#6910
21M → 35K42420#6910#6910
35K → 23M60103-43#6910#6953
23M → 24M32116-84#6953#7037
24M → 40K26134-108#7037#7145
40K → 25.2M1566-51#7145#7196
25.2M → Finish36144-108#7196#7304
TOTALS14301067+363
📊

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