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BOSTON MARATHON 2023

Laura Smith

Bib: 19085•F

WI

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 49%
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
25:13
Rank: #14853
Start → 5K
25:13 | 8:07/mi
10K· 6.21 mi
50:02
Rank: #14762 (+91)
5K → 10K
24:49 | 7:59/mi
15K· 9.32 mi
1:15:06
Rank: #14807 (-45)
10K → 15K
25:04 | 8:04/mi
20K· 12.43 mi
1:40:09
Rank: #14555 (+252)
15K → 20K
25:03 | 8:04/mi
Half· 13.11 mi
1:45:39
Rank: #14580 (-25)
20K → Half
5:30 | 8:04/mi
25K· 15.53 mi
2:05:39
Rank: #14577 (+3)
Half → 25K
20:00 | 8:15/mi
30K· 18.64 mi
2:32:20
Rank: #14613 (-36)
25K → 30K
26:41 | 8:35/mi
20M
2:44:33
Rank: #14759 (-146)
30K → 20M
12:13 | 8:59/mi
21M
2:54:11
Rank: #14862 (-103)
20M → 21M
9:38 | 9:38/mi
35K· 21.75 mi
3:00:58
Rank: #14994 (-132)
21M → 35K
6:47 | 9:04/mi
23M
3:13:22
Rank: #15345 (-351)
35K → 23M
12:24 | 9:54/mi
24M
3:22:54
Rank: #15571 (-226)
23M → 24M
9:32 | 9:32/mi
40K· 24.85 mi
3:31:41
Rank: #15874 (-303)
24M → 40K
8:47 | 10:16/mi
25.2M
3:35:36
Rank: #16025 (-151)
40K → 25.2M
3:55 | 11:21/mi
Finish· 26.22 mi
3:44:52
Rank: #16143 (-118)
25.2M → Finish
9:16 | 9:06/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:39
Pace8:04 /mi
2nd Half
Distance13.11 mi
Time1:59:13
Pace9:06 /mi
📊Positive Split: 12.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:5825:138:0725:13
8:07
-
10K
6.21 mi11:41:4750:028:0324:49
7:59
-0:08
15K
9.32 mi12:06:511:15:068:0325:04
8:04
+0:05
20K
12.43 mi12:31:541:40:098:0425:03
8:04
0:00
Half
13.11 mi12:37:241:45:398:045:30
8:04
0:00
25K
15.53 mi12:57:242:05:398:0520:00
8:15
+0:11
30K
18.64 mi13:24:052:32:208:1026:41
8:35
+0:20
20M
20.00 mi13:36:182:44:338:1412:13
8:59
+0:24
21M
21.00 mi13:45:562:54:118:189:38
9:38
+0:39
35K
21.75 mi13:52:433:00:588:196:47
9:04
-0:34
23M
23.00 mi14:05:073:13:228:2412:24
9:54
+0:50
24M
24.00 mi14:14:393:22:548:279:32
9:32
-0:22
40K
24.85 mi14:23:263:31:418:318:47
10:16
+0:44
25.2M
25.20 mi14:27:213:35:368:333:55
11:21
+1:05
Finish
26.22 mi14:36:373:44:528:359:16
9:06
-2:15

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

7:59 /mi

Average Pace

8:35 /mi

Slowest Pace

11:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:05:39

56% of race

Time at Steady Pace

54:57

24% of race

Time at Slower Pace

44:16

20% of race

Average Pace: 8:35 /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 mi11:16:5825:138:0725:13
8:07
#14853
10K
6.21 mi11:41:4750:028:0324:49
7:59
#14762
15K
9.32 mi12:06:511:15:068:0325:04
8:04
#14807
20K
12.43 mi12:31:541:40:098:0425:03
8:04
#14555
Half
13.11 mi12:37:241:45:398:045:30
8:04
#14580
25K
15.53 mi12:57:242:05:398:0520:00
8:15
#14577
30K
18.64 mi13:24:052:32:208:1026:41
8:35
#14613
20M
20.00 mi13:36:182:44:338:1412:13
8:59
#14759
21M
21.00 mi13:45:562:54:118:189:38
9:38
#14862
35K
21.75 mi13:52:433:00:588:196:47
9:04
#14994
23M
23.00 mi14:05:073:13:228:2412:24
9:54
#15345
24M
24.00 mi14:14:393:22:548:279:32
9:32
#15571
40K
24.85 mi14:23:263:31:418:318:47
10:16
#15874
25.2M
25.20 mi14:27:213:35:368:333:55
11:21
#16025
Finish
26.22 mi14:36:373:44:528:359:16
9:06
#16143
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi148534549454914965(Top 56%)4661(Top 41%)4661(Top 95%)
10K6.21 mi3.10 mi14762+914504+454504+4514739(Top 55%)4505(Top 39%)4505(Top 92%)
15K9.32 mi3.11 mi14807-454544-404544-4014965(Top 56%)4661(Top 41%)4661(Top 95%)
20K12.43 mi3.11 mi14555+2524403+1414403+14113968(Top 52%)4095(Top 36%)4095(Top 84%)
Half13.11 mi0.68 mi14580-254416-134416-1314947(Top 56%)4667(Top 41%)4667(Top 96%)
25K15.53 mi2.42 mi14577+34456-404456-4014613(Top 55%)4601(Top 40%)4601(Top 94%)
30K18.64 mi3.11 mi14613-364505-494505-4914867(Top 56%)4858(Top 43%)4858(Top 99%)
20M20.00 mi1.36 mi14759-1464612-1074612-10716499(Top 62%)5864(Top 51%)5864(Top 120%)
21M21.00 mi1.00 mi14862-1034706-944706-9416591(Top 62%)5961(Top 52%)5961(Top 122%)
35K21.75 mi0.75 mi14994-1324811-1054811-10518173(Top 68%)6925(Top 61%)6925(Top 142%)
23M23.00 mi1.25 mi15345-3515059-2485059-24819700(Top 74%)7796(Top 68%)7796(Top 160%)
24M24.00 mi1.00 mi15571-2265228-1695228-16919336(Top 73%)7626(Top 67%)7626(Top 156%)
40K24.85 mi0.85 mi15874-3035409-1815409-18120671(Top 78%)8422(Top 74%)8422(Top 172%)
25.2M25.20 mi0.35 mi16025-1515494-855494-8521255(Top 80%)8718(Top 76%)8718(Top 179%)
Finish26.22 mi1.02 mi16143-1185577-835577-8318439(Top 69%)7135(Top 62%)7135(Top 146%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21stories
+97ft-345ft

Overall

14965

Females

4661

F18-39

4661

5K→10K

3.1 - 6.2 mi

Top 55%
×5stories
+79ft-138ft

Overall

14739

Females

4505

F18-39

4505

10K→15K

6.2 - 9.3 mi

Top 56%
×3stories
+67ft-78ft

Overall

14965

Females

4661

F18-39

4661

15K→20K

9.3 - 12.4 mi

Top 52%
×5stories
+106ft-86ft

Overall

13968

Females

4095

F18-39

4095

20K→Half

12.4 - 13.1 mi

Top 56%
×2stories
+19ft-37ft

Overall

14947

Females

4667

F18-39

4667

Half→25K

13.1 - 15.5 mi

Top 55%
×4stories
+66ft-88ft

Overall

14613

Females

4601

F18-39

4601

25K→30K

15.5 - 18.6 mi

Top 56%
×9stories
+181ft-148ft

Overall

14867

Females

4858

F18-39

4858

30K→20M

18.6 - 20.0 mi

Top 62%
×5stories
+64ft-50ft

Overall

16499

Females

5864

F18-39

5864

20M→21M

20.0 - 21.0 mi

Top 62%
×8stories
+106ft-24ft

Overall

16591

Females

5961

F18-39

5961

21M→35K

21.0 - 21.8 mi

Top 68%
×7stories
+17ft-86ft

Overall

18173

Females

6925

F18-39

6925

35K→23M

21.8 - 23.0 mi

Top 74%
×5stories
+23ft-63ft

Overall

19700

Females

7796

F18-39

7796

23M→24M

23.0 - 24.0 mi

Top 73%
×6stories
+12ft-82ft

Overall

19336

Females

7626

F18-39

7626

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

20671

Females

8422

F18-39

8422

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

21255

Females

8718

F18-39

8718

25.2M→Finish

25.2 - 26.2 mi

Top 69%
×2stories
+22ft-21ft

Overall

18439

Females

7135

F18-39

7135

Passing Analysis

Category:
Athletes Passed
1390
Passed By
2680
Net Change
-1290
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14853
5K → 10K337246+91#14853#14762
10K → 15K174219-45#14762#14807
15K → 20K33179+252#14807#14555
20K → Half2146-25#14555#14580
Half → 25K150147+3#14580#14577
25K → 30K152188-36#14577#14613
30K → 20M40186-146#14613#14759
20M → 21M54157-103#14759#14862
21M → 35K25157-132#14862#14994
35K → 23M25376-351#14994#15345
23M → 24M27253-226#15345#15571
24M → 40K12315-303#15571#15874
40K → 25.2M7158-151#15874#16025
25.2M → Finish35153-118#16025#16143
TOTALS13902680-1290
📊

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