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BOSTON MARATHON 2023

Jennifer Jenson

Bib: 22588•F

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 38%
Masters (Masters Women)
#0 / 6539
Top 25%
Division (F50-54)
#0 / 1207
Top 17%
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
8:13/mi
25:31
↑ 97↓ 3451.5%
10K· 6.21 mi
8:04/mi
50:34
↑ 79↓ 1380.4%
15K· 9.32 mi
8:07/mi
1:15:46
↑ 67↓ 78
20K· 12.43 mi
8:09/mi
1:41:06
↑ 106↓ 860.1%
Half· 13.11 mi
7:58/mi
1:46:32
↑ 19↓ 370.5%
25K· 15.53 mi
8:15/mi
2:06:33
↑ 66↓ 880.2%
30K· 18.64 mi
8:25/mi
2:32:42
↑ 181↓ 1480.2%
20M
8:23/mi
2:44:06
↑ 64↓ 500.2%
21M
9:00/mi
2:53:06
↑ 106↓ 241.6%
35K· 21.75 mi
8:04/mi
2:59:08
↑ 17↓ 861.7%
23M
8:37/mi
3:09:55
↑ 23↓ 630.6%
24M
8:18/mi
3:18:13
↓ 821.3%
40K· 24.85 mi
8:31/mi
3:25:30
↓ 200.3%
25.2M
9:02/mi
3:28:37
↑ 13↓ 160.2%
Finish· 26.22 mi
8:07/mi
3:36:53
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:32
Pace8:08 /mi
2nd Half
Distance13.11 mi
Time1:50:21
Pace8:25 /mi
📊Positive Split: 3.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:5825:318:1325:31
8:13
-
10K
6.21 mi11:44:0150:348:0825:03
8:04
-0:09
15K
9.32 mi12:09:131:15:468:0825:12
8:07
+0:03
20K
12.43 mi12:34:331:41:068:0825:20
8:09
+0:02
Half
13.11 mi12:39:591:46:328:085:26
7:58
-0:11
25K
15.53 mi13:00:002:06:338:0920:01
8:15
+0:17
30K
18.64 mi13:26:092:32:428:1126:09
8:25
+0:10
20M
20.00 mi13:37:332:44:068:1211:24
8:23
-0:02
21M
21.00 mi13:46:332:53:068:159:00
9:00
+0:37
35K
21.75 mi13:52:352:59:088:146:02
8:04
-0:56
23M
23.00 mi14:03:223:09:558:1510:47
8:37
+0:33
24M
24.00 mi14:11:403:18:138:168:18
8:18
-0:19
40K
24.85 mi14:18:573:25:308:167:17
8:31
+0:13
25.2M
25.20 mi14:22:043:28:378:173:07
9:02
+0:31
Finish
26.22 mi14:30:203:36:538:178:16
8:07
-0:55

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

8:17 /mi

Slowest Pace

9:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:24:46

94% of race

Time at Steady Pace

12:07

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:16 /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 mi11:18:5825:318:1325:31
8:13
#15562
10K
6.21 mi11:44:0150:348:0825:03
8:04
#15376
15K
9.32 mi12:09:131:15:468:0825:12
8:07
#15334
20K
12.43 mi12:34:331:41:068:0825:20
8:09
#15135
Half
13.11 mi12:39:591:46:328:085:26
7:58
#15067
25K
15.53 mi13:00:002:06:338:0920:01
8:15
#14961
30K
18.64 mi13:26:092:32:428:1126:09
8:25
#14744
20M
20.00 mi13:37:332:44:068:1211:24
8:23
#14591
21M
21.00 mi13:46:332:53:068:159:00
9:00
#14493
35K
21.75 mi13:52:352:59:088:146:02
8:04
#14435
23M
23.00 mi14:03:223:09:558:1510:47
8:37
#14380
24M
24.00 mi14:11:403:18:138:168:18
8:18
#14310
40K
24.85 mi14:18:573:25:308:167:17
8:31
#14258
25.2M
25.20 mi14:22:043:28:378:173:07
9:02
#14230
Finish
26.22 mi14:30:203:36:538:178:16
8:07
#14153
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi155625007500715245(Top 57%)4819(Top 42%)4819(Top 399%)
10K6.21 mi3.10 mi15376+1864888+1194888+11915269(Top 57%)4838(Top 42%)4838(Top 401%)
15K9.32 mi3.11 mi15334+424875+134875+1315245(Top 57%)4819(Top 42%)4819(Top 399%)
20K12.43 mi3.11 mi15135+1994768+1074768+10714638(Top 55%)4489(Top 39%)4489(Top 372%)
Half13.11 mi0.68 mi15067+684727+414727+4114143(Top 53%)4174(Top 37%)4174(Top 346%)
25K15.53 mi2.42 mi14961+1064687+404687+4014646(Top 55%)4614(Top 40%)4614(Top 382%)
30K18.64 mi3.11 mi14744+2174581+1064581+10613805(Top 52%)4216(Top 37%)4216(Top 349%)
20M20.00 mi1.36 mi14591+1534522+594522+5912994(Top 49%)3863(Top 34%)3863(Top 320%)
21M21.00 mi1.00 mi14493+984488+344488+3413433(Top 50%)4178(Top 37%)4178(Top 346%)
35K21.75 mi0.75 mi14435+584465+234465+2312633(Top 47%)3794(Top 33%)3794(Top 314%)
23M23.00 mi1.25 mi14380+554460+54460+513891(Top 52%)4554(Top 40%)4554(Top 377%)
24M24.00 mi1.00 mi14310+704434+264434+2613273(Top 50%)4269(Top 37%)4269(Top 354%)
40K24.85 mi0.85 mi14258+524429+54429+513491(Top 51%)4468(Top 39%)4468(Top 370%)
25.2M25.20 mi0.35 mi14230+284425+44425+412807(Top 48%)4140(Top 36%)4140(Top 343%)
Finish26.22 mi1.02 mi14153+774390+354390+3512885(Top 48%)4156(Top 36%)4156(Top 344%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21story building
+97ft-345ft

Overall

15245

Females

4819

F50-54

4819

5K→10K

3.1 - 6.2 mi

Top 57%
×5story building
+79ft-138ft

Overall

15269

Females

4838

F50-54

4838

10K→15K

6.2 - 9.3 mi

Top 57%
×3story building
+67ft-78ft

Overall

15245

Females

4819

F50-54

4819

15K→20K

9.3 - 12.4 mi

Top 55%
×5story building
+106ft-86ft

Overall

14638

Females

4489

F50-54

4489

20K→Half

12.4 - 13.1 mi

Top 53%
×2story building
+19ft-37ft

Overall

14143

Females

4174

F50-54

4174

Half→25K

13.1 - 15.5 mi

Top 55%
×4story building
+66ft-88ft

Overall

14646

Females

4614

F50-54

4614

25K→30K

15.5 - 18.6 mi

Top 52%
×9story building
+181ft-148ft

Overall

13805

Females

4216

F50-54

4216

30K→20M

18.6 - 20.0 mi

Top 49%
×5story building
+64ft-50ft

Overall

12994

Females

3863

F50-54

3863

20M→21M

20.0 - 21.0 mi

Top 50%
×8story building
+106ft-24ft

Overall

13433

Females

4178

F50-54

4178

21M→35K

21.0 - 21.8 mi

Top 47%
×7story building
+17ft-86ft

Overall

12633

Females

3794

F50-54

3794

35K→23M

21.8 - 23.0 mi

Top 52%
×5story building
+23ft-63ft

Overall

13891

Females

4554

F50-54

4554

23M→24M

23.0 - 24.0 mi

Top 50%
×6story building
+12ft-82ft

Overall

13273

Females

4269

F50-54

4269

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

13491

Females

4468

F50-54

4468

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

12807

Females

4140

F50-54

4140

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2story building
+22ft-21ft

Overall

12885

Females

4156

F50-54

4156

Passing Analysis

Category:
Athletes Passed
2262
Passed By
853
Net Change
+1409
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15562
5K → 10K409223+186#15562#15376
10K → 15K200158+42#15376#15334
15K → 20K27778+199#15334#15135
20K → Half8012+68#15135#15067
Half → 25K18478+106#15067#14961
25K → 30K28568+217#14961#14744
30K → 20M17320+153#14744#14591
20M → 21M13133+98#14591#14493
21M → 35K7315+58#14493#14435
35K → 23M11661+55#14435#14380
23M → 24M10737+70#14380#14310
24M → 40K8028+52#14310#14258
40K → 25.2M4214+28#14258#14230
25.2M → Finish10528+77#14230#14153
TOTALS2262853+1409
📊

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