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BOSTON MARATHON 2023

Laura Shuttleworth

AB

Bib: 16311 F

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 44%
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:03/mi
25:00
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:18/mi
50:47
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:14/mi
1:16:22
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:19/mi
1:42:13
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:58/mi
1:47:39
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:09/mi
2:07:24
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:29/mi
2:33:44
↑ 181↓ 1480.2%
138 ft elev
20M
8:30/mi
2:45:17
↑ 64↓ 500.2%
148 ft elev
21M
9:53/mi
2:55:10
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:05/mi
3:01:13
↑ 17↓ 861.7%
156 ft elev
23M
8:23/mi
3:11:43
↑ 23↓ 630.6%
116 ft elev
24M
8:41/mi
3:20:24
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:25/mi
3:27:36
↓ 200.3%
20 ft elev
25.2M
14:50/mi
3:32:43
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:02/mi
3:40:54
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:39
Pace8:13 /mi
2nd Half
Distance13.11 mi
Time1:53:15
Pace8:38 /mi
📊Positive Split: 5.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:1325:008:0325:00
8:03
-
10K
6.21 mi11:41:0050:478:1025:47
8:18
+0:15
15K
9.32 mi12:06:351:16:228:1225:35
8:14
-0:04
20K
12.43 mi12:32:261:42:138:1425:51
8:19
+0:05
Half
13.11 mi12:37:521:47:398:135:26
7:58
-0:21
25K
15.53 mi12:57:372:07:248:1219:45
8:09
+0:11
30K
18.64 mi13:23:572:33:448:1526:20
8:29
+0:20
20M
20.00 mi13:35:302:45:178:1611:33
8:30
+0:01
21M
21.00 mi13:45:232:55:108:209:53
9:53
+1:23
35K
21.75 mi13:51:263:01:138:206:03
8:05
-1:48
23M
23.00 mi14:01:563:11:438:2010:30
8:23
+0:18
24M
24.00 mi14:10:373:20:248:218:41
8:41
+0:18
40K
24.85 mi14:17:493:27:368:217:12
8:25
-0:16
25.2M
25.20 mi14:22:563:32:438:265:07
14:50
+6:25
Finish
26.22 mi14:31:073:40:548:268:11
8:02
-6:48

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

7:58 /mi

Average Pace

8:26 /mi

Slowest Pace

14:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:25:54

93% of race

Time at Slower Pace

15:00

7% of race

Average Pace: 8:25 /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 mi11:15:1325:008:0325:00
8:03
#14351
10K
6.21 mi11:41:0050:478:1025:47
8:18
#15638
15K
9.32 mi12:06:351:16:228:1225:35
8:14
#15776
20K
12.43 mi12:32:261:42:138:1425:51
8:19
#15751
Half
13.11 mi12:37:521:47:398:135:26
7:58
#15668
25K
15.53 mi12:57:372:07:248:1219:45
8:09
#15364
30K
18.64 mi13:23:572:33:448:1526:20
8:29
#15109
20M
20.00 mi13:35:302:45:178:1611:33
8:30
#14995
21M
21.00 mi13:45:232:55:108:209:53
9:53
#15152
35K
21.75 mi13:51:263:01:138:206:03
8:05
#15064
23M
23.00 mi14:01:563:11:438:2010:30
8:23
#14901
24M
24.00 mi14:10:373:20:248:218:41
8:41
#14904
40K
24.85 mi14:17:493:27:368:217:12
8:25
#14802
25.2M
25.20 mi14:22:563:32:438:265:07
14:50
#15298
Finish
26.22 mi14:31:073:40:548:268:11
8:02
#15160
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi143514238423816111(Top 61%)5357(Top 47%)5357(Top 110%)
10K6.21 mi3.10 mi15638-12875058-8205058-82016925(Top 64%)5825(Top 51%)5825(Top 119%)
15K9.32 mi3.11 mi15776-1385139-815139-8116111(Top 61%)5357(Top 47%)5357(Top 110%)
20K12.43 mi3.11 mi15751+255149-105149-1015739(Top 59%)5184(Top 45%)5184(Top 106%)
Half13.11 mi0.68 mi15668+835101+485101+4814165(Top 53%)4196(Top 37%)4196(Top 86%)
25K15.53 mi2.42 mi15364+3044942+1594942+15913868(Top 52%)4144(Top 36%)4144(Top 85%)
30K18.64 mi3.11 mi15109+2554827+1154827+11514173(Top 53%)4439(Top 39%)4439(Top 91%)
20M20.00 mi1.36 mi14995+1144770+574770+5713658(Top 51%)4218(Top 37%)4218(Top 86%)
21M21.00 mi1.00 mi15152-1574895-1254895-12517587(Top 66%)6510(Top 57%)6510(Top 133%)
35K21.75 mi0.75 mi15064+884855+404855+4012775(Top 48%)3882(Top 34%)3882(Top 79%)
23M23.00 mi1.25 mi14901+1634772+834772+8312531(Top 47%)3821(Top 33%)3821(Top 78%)
24M24.00 mi1.00 mi14904-34796-244796-2415582(Top 59%)5572(Top 49%)5572(Top 114%)
40K24.85 mi0.85 mi14802+1024762+344762+3412886(Top 48%)4159(Top 36%)4159(Top 85%)
25.2M25.20 mi0.35 mi15298-4965069-3075069-30725610(Top 96%)10977(Top 96%)10977(Top 225%)
Finish26.22 mi1.02 mi15160+1385006+635006+6312370(Top 46%)3901(Top 34%)3901(Top 80%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21story building
+97ft-345ft

Overall

16111

Females

5357

F18-39

5357

5K→10K

3.1 - 6.2 mi

Top 64%
×5story building
+79ft-138ft

Overall

16925

Females

5825

F18-39

5825

10K→15K

6.2 - 9.3 mi

Top 61%
×3story building
+67ft-78ft

Overall

16111

Females

5357

F18-39

5357

15K→20K

9.3 - 12.4 mi

Top 59%
×5story building
+106ft-86ft

Overall

15739

Females

5184

F18-39

5184

20K→Half

12.4 - 13.1 mi

Top 53%
×2story building
+19ft-37ft

Overall

14165

Females

4196

F18-39

4196

Half→25K

13.1 - 15.5 mi

Top 52%
×4story building
+66ft-88ft

Overall

13868

Females

4144

F18-39

4144

25K→30K

15.5 - 18.6 mi

Top 53%
×9story building
+181ft-148ft

Overall

14173

Females

4439

F18-39

4439

30K→20M

18.6 - 20.0 mi

Top 51%
×5story building
+64ft-50ft

Overall

13658

Females

4218

F18-39

4218

20M→21M

20.0 - 21.0 mi

Top 66%
×8story building
+106ft-24ft

Overall

17587

Females

6510

F18-39

6510

21M→35K

21.0 - 21.8 mi

Top 48%
×7story building
+17ft-86ft

Overall

12775

Females

3882

F18-39

3882

35K→23M

21.8 - 23.0 mi

Top 47%
×5story building
+23ft-63ft

Overall

12531

Females

3821

F18-39

3821

23M→24M

23.0 - 24.0 mi

Top 59%
×6story building
+12ft-82ft

Overall

15582

Females

5572

F18-39

5572

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

12886

Females

4159

F18-39

4159

40K→25.2M

24.9 - 25.2 mi

Top 96%
×1story
+13ft-16ft

Overall

25610

Females

10977

F18-39

10977

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2story building
+22ft-21ft

Overall

12370

Females

3901

F18-39

3901

Passing Analysis

Category:
Athletes Passed
1874
Passed By
2683
Net Change
-809
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14351
5K → 10K351322-1287#14351#15638
10K → 15K134272-138#15638#15776
15K → 20K190165+25#15776#15751
20K → Half907+83#15751#15668
Half → 25K32622+304#15668#15364
25K → 30K31257+255#15364#15109
30K → 20M14127+114#15109#14995
20M → 21M48205-157#14995#15152
21M → 35K9810+88#15152#15064
35K → 23M1696+163#15064#14901
23M → 24M6063-3#14901#14904
24M → 40K11816+102#14904#14802
40K → 25.2M1497-496#14802#15298
25.2M → Finish15214+138#15298#15160
TOTALS18742683-809
📊

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