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BOSTON MARATHON 2023

Laura Simpson

Bib: 26540•F

MA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:03
Rank: #18945
Start → 5K
27:03 | 8:42/mi
10K· 6.21 mi
55:11
Rank: #20102 (-1157)
5K → 10K
28:08 | 9:03/mi
15K· 9.32 mi
1:23:56
Rank: #20596 (-494)
10K → 15K
28:45 | 9:15/mi
20K· 12.43 mi
1:54:18
Rank: #21179 (-583)
15K → 20K
30:22 | 9:46/mi
Half· 13.11 mi
2:01:03
Rank: #21292 (-113)
20K → Half
6:45 | 9:54/mi
25K· 15.53 mi
2:25:55
Rank: #21581 (-289)
Half → 25K
24:52 | 10:15/mi
30K· 18.64 mi
2:58:10
Rank: #21643 (-62)
25K → 30K
32:15 | 10:23/mi
20M
3:12:40
Rank: #21685 (-42)
30K → 20M
14:30 | 10:40/mi
21M
3:24:04
Rank: #21711 (-26)
20M → 21M
11:24 | 11:24/mi
35K· 21.75 mi
3:31:13
Rank: #21643 (+68)
21M → 35K
7:09 | 9:33/mi
23M
3:44:07
Rank: #21585 (+58)
35K → 23M
12:54 | 10:18/mi
24M
3:54:54
Rank: #21650 (-65)
23M → 24M
10:47 | 10:47/mi
40K· 24.85 mi
4:04:06
Rank: #21670 (-20)
24M → 40K
9:12 | 10:46/mi
25.2M
4:08:07
Rank: #21673 (-3)
40K → 25.2M
4:01 | 11:39/mi
Finish· 26.22 mi
4:19:09
Rank: #21754 (-81)
25.2M → Finish
11:02 | 10:50/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:01:03
Pace9:14 /mi
2nd Half
Distance13.11 mi
Time2:18:06
Pace10:32 /mi
📊Positive Split: 14.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:2727:038:4227:03
8:42
-
10K
6.21 mi12:11:3555:118:5328:08
9:03
+0:21
15K
9.32 mi12:40:201:23:569:0028:45
9:15
+0:12
20K
12.43 mi13:10:421:54:189:1230:22
9:46
+0:31
Half
13.11 mi13:17:272:01:039:146:45
9:54
+0:08
25K
15.53 mi13:42:192:25:559:2424:52
10:15
+0:21
30K
18.64 mi14:14:342:58:109:3332:15
10:23
+0:08
20M
20.00 mi14:29:043:12:409:3814:30
10:40
+0:17
21M
21.00 mi14:40:283:24:049:4311:24
11:24
+0:44
35K
21.75 mi14:47:373:31:139:437:09
9:33
-1:51
23M
23.00 mi15:00:313:44:079:4512:54
10:18
+0:45
24M
24.00 mi15:11:183:54:549:4710:47
10:47
+0:29
40K
24.85 mi15:20:304:04:069:499:12
10:46
-0:01
25.2M
25.20 mi15:24:314:08:079:514:01
11:39
+0:53
Finish
26.22 mi15:35:334:19:099:5311:02
10:50
-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

8:42 /mi

Average Pace

9:53 /mi

Slowest Pace

11:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:01:27

47% of race

Time at Steady Pace

1:31:16

35% of race

Time at Slower Pace

46:26

18% of race

Average Pace: 9:53 /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 mi11:43:2727:038:4227:03
8:42
#18945
10K
6.21 mi12:11:3555:118:5328:08
9:03
#20102
15K
9.32 mi12:40:201:23:569:0028:45
9:15
#20596
20K
12.43 mi13:10:421:54:189:1230:22
9:46
#21179
Half
13.11 mi13:17:272:01:039:146:45
9:54
#21292
25K
15.53 mi13:42:192:25:559:2424:52
10:15
#21581
30K
18.64 mi14:14:342:58:109:3332:15
10:23
#21643
20M
20.00 mi14:29:043:12:409:3814:30
10:40
#21685
21M
21.00 mi14:40:283:24:049:4311:24
11:24
#21711
35K
21.75 mi14:47:373:31:139:437:09
9:33
#21643
23M
23.00 mi15:00:313:44:079:4512:54
10:18
#21585
24M
24.00 mi15:11:183:54:549:4710:47
10:47
#21650
40K
24.85 mi15:20:304:04:069:499:12
10:46
#21670
25.2M
25.20 mi15:24:314:08:079:514:01
11:39
#21673
Finish
26.22 mi15:35:334:19:099:5311:02
10:50
#21754
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi189457172717221495(Top 81%)8495(Top 74%)8495(Top 174%)
10K6.21 mi3.10 mi20102-11577826-6547826-65421105(Top 79%)8331(Top 73%)8331(Top 171%)
15K9.32 mi3.11 mi20596-4948073-2478073-24721495(Top 81%)8495(Top 74%)8495(Top 174%)
20K12.43 mi3.11 mi21179-5838366-2938366-29322341(Top 84%)8990(Top 79%)8990(Top 184%)
Half13.11 mi0.68 mi21292-1138428-628428-6223074(Top 87%)9387(Top 82%)9387(Top 192%)
25K15.53 mi2.42 mi21581-2898589-1618589-16122754(Top 85%)9249(Top 81%)9249(Top 189%)
30K18.64 mi3.11 mi21643-628635-468635-4621954(Top 82%)8881(Top 78%)8881(Top 182%)
20M20.00 mi1.36 mi21685-428669-348669-3422090(Top 83%)9035(Top 79%)9035(Top 185%)
21M21.00 mi1.00 mi21711-268693-248693-2421699(Top 82%)8830(Top 77%)8830(Top 181%)
35K21.75 mi0.75 mi21643+688669+248669+2420056(Top 75%)7971(Top 70%)7971(Top 163%)
23M23.00 mi1.25 mi21585+588652+178652+1720843(Top 78%)8432(Top 74%)8432(Top 173%)
24M24.00 mi1.00 mi21650-658699-478699-4722637(Top 85%)9441(Top 83%)9441(Top 193%)
40K24.85 mi0.85 mi21670-208720-218720-2121861(Top 82%)9073(Top 79%)9073(Top 186%)
25.2M25.20 mi0.35 mi21673-38730-108730-1021880(Top 82%)9064(Top 79%)9064(Top 186%)
Finish26.22 mi1.02 mi21754-818769-398769-3923658(Top 89%)9987(Top 87%)9987(Top 204%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21stories
+97ft-345ft

Overall

21495

Females

8495

F18-39

8495

5K→10K

3.1 - 6.2 mi

Top 79%
×5stories
+79ft-138ft

Overall

21105

Females

8331

F18-39

8331

10K→15K

6.2 - 9.3 mi

Top 81%
×3stories
+67ft-78ft

Overall

21495

Females

8495

F18-39

8495

15K→20K

9.3 - 12.4 mi

Top 84%
×5stories
+106ft-86ft

Overall

22341

Females

8990

F18-39

8990

20K→Half

12.4 - 13.1 mi

Top 87%
×2stories
+19ft-37ft

Overall

23074

Females

9387

F18-39

9387

Half→25K

13.1 - 15.5 mi

Top 85%
×4stories
+66ft-88ft

Overall

22754

Females

9249

F18-39

9249

25K→30K

15.5 - 18.6 mi

Top 82%
×9stories
+181ft-148ft

Overall

21954

Females

8881

F18-39

8881

30K→20M

18.6 - 20.0 mi

Top 83%
×5stories
+64ft-50ft

Overall

22090

Females

9035

F18-39

9035

20M→21M

20.0 - 21.0 mi

Top 82%
×8stories
+106ft-24ft

Overall

21699

Females

8830

F18-39

8830

21M→35K

21.0 - 21.8 mi

Top 75%
×7stories
+17ft-86ft

Overall

20056

Females

7971

F18-39

7971

35K→23M

21.8 - 23.0 mi

Top 78%
×5stories
+23ft-63ft

Overall

20843

Females

8432

F18-39

8432

23M→24M

23.0 - 24.0 mi

Top 85%
×6stories
+12ft-82ft

Overall

22637

Females

9441

F18-39

9441

24M→40K

24.0 - 24.9 mi

Top 82%
×1story
+6ft-20ft

Overall

21861

Females

9073

F18-39

9073

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1story
+13ft-16ft

Overall

21880

Females

9064

F18-39

9064

25.2M→Finish

25.2 - 26.2 mi

Top 89%
×2stories
+22ft-21ft

Overall

23658

Females

9987

F18-39

9987

Passing Analysis

Category:
Athletes Passed
645
Passed By
3454
Net Change
-2809
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18945
5K → 10K581215-1157#18945#20102
10K → 15K55549-494#20102#20596
15K → 20K38621-583#20596#21179
20K → Half2115-113#21179#21292
Half → 25K37326-289#21292#21581
25K → 30K117179-62#21581#21643
30K → 20M4789-42#21643#21685
20M → 21M4571-26#21685#21711
21M → 35K735+68#21711#21643
35K → 23M9335+58#21643#21585
23M → 24M2489-65#21585#21650
24M → 40K3151-20#21650#21670
40K → 25.2M1619-3#21670#21673
25.2M → Finish990-81#21673#21754
TOTALS6453454-2809
📊

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