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BOSTON MARATHON 2023

Laura Henderson

Bib: 18936•F

AB

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 39%
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
25:27
Rank: #15414
Start → 5K
25:27 | 8:11/mi
10K· 6.21 mi
50:30
Rank: #15298 (+116)
5K → 10K
25:03 | 8:04/mi
15K· 9.32 mi
1:15:37
Rank: #15206 (+92)
10K → 15K
25:07 | 8:05/mi
20K· 12.43 mi
1:41:00
Rank: #15075 (+131)
15K → 20K
25:23 | 8:10/mi
Half· 13.11 mi
1:46:30
Rank: #15041 (+34)
20K → Half
5:30 | 8:04/mi
25K· 15.53 mi
2:06:17
Rank: #14841 (+200)
Half → 25K
19:47 | 8:10/mi
30K· 18.64 mi
2:32:50
Rank: #14803 (+38)
25K → 30K
26:33 | 8:33/mi
20M
2:44:31
Rank: #14741 (+62)
30K → 20M
11:41 | 8:36/mi
21M
2:53:38
Rank: #14679 (+62)
20M → 21M
9:07 | 9:07/mi
35K· 21.75 mi
2:59:46
Rank: #14615 (+64)
21M → 35K
6:08 | 8:12/mi
23M
3:10:15
Rank: #14484 (+131)
35K → 23M
10:29 | 8:22/mi
24M
3:18:22
Rank: #14356 (+128)
23M → 24M
8:07 | 8:07/mi
40K· 24.85 mi
3:25:28
Rank: #14252 (+104)
24M → 40K
7:06 | 8:18/mi
25.2M
3:28:39
Rank: #14236 (+16)
40K → 25.2M
3:11 | 9:14/mi
Finish· 26.22 mi
3:37:00
Rank: #14194 (+42)
25.2M → Finish
8:21 | 8:12/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:30
Pace8:07 /mi
2nd Half
Distance13.11 mi
Time1:50:30
Pace8:26 /mi
📊Positive Split: 3.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:4625:278:1125:27
8:11
-
10K
6.21 mi11:41:4950:308:0825:03
8:04
-0:07
15K
9.32 mi12:06:561:15:378:0725:07
8:05
+0:01
20K
12.43 mi12:32:191:41:008:0825:23
8:10
+0:05
Half
13.11 mi12:37:491:46:308:075:30
8:04
-0:06
25K
15.53 mi12:57:362:06:178:0819:47
8:10
+0:06
30K
18.64 mi13:24:092:32:508:1226:33
8:33
+0:23
20M
20.00 mi13:35:502:44:318:1411:41
8:36
+0:03
21M
21.00 mi13:44:572:53:388:169:07
9:07
+0:31
35K
21.75 mi13:51:052:59:468:166:08
8:12
-0:55
23M
23.00 mi14:01:343:10:158:1610:29
8:22
+0:10
24M
24.00 mi14:09:413:18:228:168:07
8:07
-0:15
40K
24.85 mi14:16:473:25:288:167:06
8:18
+0:11
25.2M
25.20 mi14:19:583:28:398:173:11
9:14
+0:56
Finish
26.22 mi14:28:193:37:008:178:21
8:12
-1:02

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

8:04 /mi

Average Pace

8:17 /mi

Slowest Pace

9:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:24:42

94% of race

Time at Steady Pace

12:18

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:17 /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 mi11:16:4625:278:1125:27
8:11
#15414
10K
6.21 mi11:41:4950:308:0825:03
8:04
#15298
15K
9.32 mi12:06:561:15:378:0725:07
8:05
#15206
20K
12.43 mi12:32:191:41:008:0825:23
8:10
#15075
Half
13.11 mi12:37:491:46:308:075:30
8:04
#15041
25K
15.53 mi12:57:362:06:178:0819:47
8:10
#14841
30K
18.64 mi13:24:092:32:508:1226:33
8:33
#14803
20M
20.00 mi13:35:502:44:318:1411:41
8:36
#14741
21M
21.00 mi13:44:572:53:388:169:07
9:07
#14679
35K
21.75 mi13:51:052:59:468:166:08
8:12
#14615
23M
23.00 mi14:01:343:10:158:1610:29
8:22
#14484
24M
24.00 mi14:09:413:18:228:168:07
8:07
#14356
40K
24.85 mi14:16:473:25:288:167:06
8:18
#14252
25.2M
25.20 mi14:19:583:28:398:173:11
9:14
#14236
Finish
26.22 mi14:28:193:37:008:178:21
8:12
#14194
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi154144908490815068(Top 57%)4712(Top 41%)4712(Top 96%)
10K6.21 mi3.10 mi15298+1164835+734835+7315270(Top 57%)4839(Top 42%)4839(Top 99%)
15K9.32 mi3.11 mi15206+924787+484787+4815068(Top 57%)4712(Top 41%)4712(Top 96%)
20K12.43 mi3.11 mi15075+1314729+584729+5814759(Top 55%)4564(Top 40%)4564(Top 93%)
Half13.11 mi0.68 mi15041+344712+174712+1714906(Top 56%)4626(Top 40%)4626(Top 95%)
25K15.53 mi2.42 mi14841+2004612+1004612+10013960(Top 52%)4196(Top 37%)4196(Top 86%)
30K18.64 mi3.11 mi14803+384620-84620-814580(Top 55%)4678(Top 41%)4678(Top 96%)
20M20.00 mi1.36 mi14741+624603+174603+1714259(Top 54%)4571(Top 40%)4571(Top 94%)
21M21.00 mi1.00 mi14679+624596+74596+714075(Top 53%)4522(Top 40%)4522(Top 93%)
35K21.75 mi0.75 mi14615+644573+234573+2313468(Top 51%)4267(Top 37%)4267(Top 87%)
23M23.00 mi1.25 mi14484+1314518+554518+5512438(Top 47%)3768(Top 33%)3768(Top 77%)
24M24.00 mi1.00 mi14356+1284462+564462+5612089(Top 45%)3646(Top 32%)3646(Top 75%)
40K24.85 mi0.85 mi14252+1044425+374425+3712126(Top 46%)3751(Top 33%)3751(Top 77%)
25.2M25.20 mi0.35 mi14236+164428-34428-313858(Top 52%)4669(Top 41%)4669(Top 96%)
Finish26.22 mi1.02 mi14194+424421+74421+713416(Top 50%)4420(Top 39%)4420(Top 90%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21stories
+97ft-345ft

Overall

15068

Females

4712

F18-39

4712

5K→10K

3.1 - 6.2 mi

Top 57%
×5stories
+79ft-138ft

Overall

15270

Females

4839

F18-39

4839

10K→15K

6.2 - 9.3 mi

Top 57%
×3stories
+67ft-78ft

Overall

15068

Females

4712

F18-39

4712

15K→20K

9.3 - 12.4 mi

Top 55%
×5stories
+106ft-86ft

Overall

14759

Females

4564

F18-39

4564

20K→Half

12.4 - 13.1 mi

Top 56%
×2stories
+19ft-37ft

Overall

14906

Females

4626

F18-39

4626

Half→25K

13.1 - 15.5 mi

Top 52%
×4stories
+66ft-88ft

Overall

13960

Females

4196

F18-39

4196

25K→30K

15.5 - 18.6 mi

Top 55%
×9stories
+181ft-148ft

Overall

14580

Females

4678

F18-39

4678

30K→20M

18.6 - 20.0 mi

Top 54%
×5stories
+64ft-50ft

Overall

14259

Females

4571

F18-39

4571

20M→21M

20.0 - 21.0 mi

Top 53%
×8stories
+106ft-24ft

Overall

14075

Females

4522

F18-39

4522

21M→35K

21.0 - 21.8 mi

Top 51%
×7stories
+17ft-86ft

Overall

13468

Females

4267

F18-39

4267

35K→23M

21.8 - 23.0 mi

Top 47%
×5stories
+23ft-63ft

Overall

12438

Females

3768

F18-39

3768

23M→24M

23.0 - 24.0 mi

Top 45%
×6stories
+12ft-82ft

Overall

12089

Females

3646

F18-39

3646

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

12126

Females

3751

F18-39

3751

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1story
+13ft-16ft

Overall

13858

Females

4669

F18-39

4669

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2stories
+22ft-21ft

Overall

13416

Females

4420

F18-39

4420

Passing Analysis

Category:
Athletes Passed
2170
Passed By
950
Net Change
+1220
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15414
5K → 10K370254+116#15414#15298
10K → 15K230138+92#15298#15206
15K → 20K252121+131#15206#15075
20K → Half5218+34#15075#15041
Half → 25K23636+200#15041#14841
25K → 30K188150+38#14841#14803
30K → 20M11452+62#14803#14741
20M → 21M11452+62#14741#14679
21M → 35K8319+64#14679#14615
35K → 23M14918+131#14615#14484
23M → 24M14618+128#14484#14356
24M → 40K11612+104#14356#14252
40K → 25.2M3317+16#14252#14236
25.2M → Finish8745+42#14236#14194
TOTALS2170950+1220
📊

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