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BOSTON MARATHON 2023

Jennifer Webster

Bib: 15176•F

FL

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 35%
Division (F18-39)
#0 / 4884
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
7:47/mi
24:10
↑ 97↓ 3451.5%
10K· 6.21 mi
7:44/mi
48:12
↑ 79↓ 1380.4%
15K· 9.32 mi
7:52/mi
1:12:39
↑ 67↓ 78
20K· 12.43 mi
8:08/mi
1:37:56
↑ 106↓ 860.1%
Half· 13.11 mi
8:17/mi
1:43:35
↑ 19↓ 370.5%
25K· 15.53 mi
8:27/mi
2:04:04
↑ 66↓ 880.2%
30K· 18.64 mi
8:39/mi
2:30:55
↑ 181↓ 1480.2%
20M
8:31/mi
2:42:29
↑ 64↓ 500.2%
21M
9:00/mi
2:51:29
↑ 106↓ 241.6%
35K· 21.75 mi
8:09/mi
2:57:35
↑ 17↓ 861.7%
23M
8:38/mi
3:08:23
↑ 23↓ 630.6%
24M
8:27/mi
3:16:50
↓ 821.3%
40K· 24.85 mi
8:07/mi
3:23:46
↓ 200.3%
25.2M
8:27/mi
3:26:41
↑ 13↓ 160.2%
Finish· 26.22 mi
7:48/mi
3:34:38
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:35
Pace7:54 /mi
2nd Half
Distance13.11 mi
Time1:51:03
Pace8:28 /mi
📊Positive Split: 7.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:4224:107:4724:10
7:47
-
10K
6.21 mi11:17:4448:127:4524:02
7:44
-0:03
15K
9.32 mi11:42:111:12:397:4824:27
7:52
+0:08
20K
12.43 mi12:07:281:37:567:5325:17
8:08
+0:16
Half
13.11 mi12:13:071:43:357:545:39
8:17
+0:09
25K
15.53 mi12:33:362:04:047:5920:29
8:27
+0:10
30K
18.64 mi13:00:272:30:558:0626:51
8:39
+0:12
20M
20.00 mi13:12:012:42:298:0711:34
8:31
-0:08
21M
21.00 mi13:21:012:51:298:109:00
9:00
+0:29
35K
21.75 mi13:27:072:57:358:106:06
8:09
-0:51
23M
23.00 mi13:37:553:08:238:1110:48
8:38
+0:29
24M
24.00 mi13:46:223:16:508:128:27
8:27
-0:11
40K
24.85 mi13:53:183:23:468:126:56
8:07
-0:20
25.2M
25.20 mi13:56:133:26:418:122:55
8:27
+0:20
Finish
26.22 mi14:04:103:34:388:127:57
7:48
-0:39

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

7:44 /mi

Average Pace

8:12 /mi

Slowest Pace

9:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:36:25

73% of race

Time at Steady Pace

58:13

27% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:11 /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 mi10:53:4224:107:4724:10
7:47
#12181
10K
6.21 mi11:17:4448:127:4524:02
7:44
#12345
15K
9.32 mi11:42:111:12:397:4824:27
7:52
#12640
20K
12.43 mi12:07:281:37:567:5325:17
8:08
#13138
Half
13.11 mi12:13:071:43:357:545:39
8:17
#13335
25K
15.53 mi12:33:362:04:047:5920:29
8:27
#13761
30K
18.64 mi13:00:272:30:558:0626:51
8:39
#14077
20M
20.00 mi13:12:012:42:298:0711:34
8:31
#14042
21M
21.00 mi13:21:012:51:298:109:00
9:00
#13954
35K
21.75 mi13:27:072:57:358:106:06
8:09
#13917
23M
23.00 mi13:37:553:08:238:1110:48
8:38
#13891
24M
24.00 mi13:46:223:16:508:128:27
8:27
#13890
40K
24.85 mi13:53:183:23:468:126:56
8:07
#13756
25.2M
25.20 mi13:56:133:26:418:122:55
8:27
#13664
Finish
26.22 mi14:04:103:34:388:127:57
7:48
#13531
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi121812971297113276(Top 50%)3651(Top 32%)3651(Top 75%)
10K6.21 mi3.10 mi12345-1643069-983069-9812575(Top 47%)3195(Top 28%)3195(Top 65%)
15K9.32 mi3.11 mi12640-2953255-1863255-18613276(Top 50%)3651(Top 32%)3651(Top 75%)
20K12.43 mi3.11 mi13138-4983571-3163571-31614505(Top 54%)4404(Top 39%)4404(Top 90%)
Half13.11 mi0.68 mi13335-1973688-1173688-11716365(Top 61%)5497(Top 48%)5497(Top 113%)
25K15.53 mi2.42 mi13761-4263963-2753963-27515896(Top 60%)5371(Top 47%)5371(Top 110%)
30K18.64 mi3.11 mi14077-3164195-2324195-23215180(Top 57%)5044(Top 44%)5044(Top 103%)
20M20.00 mi1.36 mi14042+354191+44191+413707(Top 51%)4240(Top 37%)4240(Top 87%)
21M21.00 mi1.00 mi13954+884154+374154+3713424(Top 50%)4169(Top 36%)4169(Top 85%)
35K21.75 mi0.75 mi13917+374148+64148+613179(Top 50%)4100(Top 36%)4100(Top 84%)
23M23.00 mi1.25 mi13891+264160-124160-1213951(Top 52%)4584(Top 40%)4584(Top 94%)
24M24.00 mi1.00 mi13890+14189-294189-2914198(Top 53%)4784(Top 42%)4784(Top 98%)
40K24.85 mi0.85 mi13756+1344115+744115+7410817(Top 41%)3065(Top 27%)3065(Top 63%)
25.2M25.20 mi0.35 mi13664+924066+494066+499378(Top 35%)2437(Top 21%)2437(Top 50%)
Finish26.22 mi1.02 mi13531+1334006+604006+6010730(Top 40%)3062(Top 27%)3062(Top 63%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21story building
+97ft-345ft

Overall

13276

Females

3651

F18-39

3651

5K→10K

3.1 - 6.2 mi

Top 47%
×5story building
+79ft-138ft

Overall

12575

Females

3195

F18-39

3195

10K→15K

6.2 - 9.3 mi

Top 50%
×3story building
+67ft-78ft

Overall

13276

Females

3651

F18-39

3651

15K→20K

9.3 - 12.4 mi

Top 54%
×5story building
+106ft-86ft

Overall

14505

Females

4404

F18-39

4404

20K→Half

12.4 - 13.1 mi

Top 61%
×2story building
+19ft-37ft

Overall

16365

Females

5497

F18-39

5497

Half→25K

13.1 - 15.5 mi

Top 60%
×4story building
+66ft-88ft

Overall

15896

Females

5371

F18-39

5371

25K→30K

15.5 - 18.6 mi

Top 57%
×9story building
+181ft-148ft

Overall

15180

Females

5044

F18-39

5044

30K→20M

18.6 - 20.0 mi

Top 51%
×5story building
+64ft-50ft

Overall

13707

Females

4240

F18-39

4240

20M→21M

20.0 - 21.0 mi

Top 50%
×8story building
+106ft-24ft

Overall

13424

Females

4169

F18-39

4169

21M→35K

21.0 - 21.8 mi

Top 50%
×7story building
+17ft-86ft

Overall

13179

Females

4100

F18-39

4100

35K→23M

21.8 - 23.0 mi

Top 52%
×5story building
+23ft-63ft

Overall

13951

Females

4584

F18-39

4584

23M→24M

23.0 - 24.0 mi

Top 53%
×6story building
+12ft-82ft

Overall

14198

Females

4784

F18-39

4784

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

10817

Females

3065

F18-39

3065

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9378

Females

2437

F18-39

2437

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2story building
+22ft-21ft

Overall

10730

Females

3062

F18-39

3062

Passing Analysis

Category:
Athletes Passed
1427
Passed By
2777
Net Change
-1350
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12181
5K → 10K240404-164#12181#12345
10K → 15K106401-295#12345#12640
15K → 20K62560-498#12640#13138
20K → Half6203-197#13138#13335
Half → 25K45471-426#13335#13761
25K → 30K108424-316#13761#14077
30K → 20M10974+35#14077#14042
20M → 21M13749+88#14042#13954
21M → 35K6124+37#13954#13917
35K → 23M9973+26#13917#13891
23M → 24M6564+1#13891#13890
24M → 40K14612+134#13890#13756
40K → 25.2M986+92#13756#13664
25.2M → Finish14512+133#13664#13531
TOTALS14272777-1350
📊

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