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BOSTON MARATHON 2023

Jennifer Jansonius

Bib: 7548•F

CO

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
28:58
Rank: #21614
Start → 5K
28:58 | 9:19/mi
10K· 6.21 mi
59:04
Rank: #22342 (-728)
5K → 10K
30:06 | 9:41/mi
15K· 9.32 mi
1:30:46
Rank: #22989 (-647)
10K → 15K
31:42 | 10:12/mi
20K· 12.43 mi
2:02:19
Rank: #23044 (-55)
15K → 20K
31:33 | 10:09/mi
Half· 13.11 mi
2:09:55
Rank: #23210 (-166)
20K → Half
7:36 | 11:08/mi
25K· 15.53 mi
2:37:50
Rank: #23529 (-319)
Half → 25K
27:55 | 11:31/mi
30K· 18.64 mi
3:14:26
Rank: #23670 (-141)
25K → 30K
36:36 | 11:47/mi
20M
3:31:39
Rank: #23821 (-151)
30K → 20M
17:13 | 12:40/mi
21M
3:46:59
Rank: #24054 (-233)
20M → 21M
15:20 | 15:20/mi
35K· 21.75 mi
3:55:06
Rank: #24024 (+30)
21M → 35K
8:07 | 10:51/mi
23M
4:11:26
Rank: #24121 (-97)
35K → 23M
16:20 | 13:03/mi
24M
4:22:37
Rank: #24089 (+32)
23M → 24M
11:11 | 11:11/mi
40K· 24.85 mi
4:36:38
Rank: #24331 (-242)
24M → 40K
14:01 | 16:24/mi
25.2M
4:41:29
Rank: #24363 (-32)
40K → 25.2M
4:51 | 14:04/mi
Finish· 26.22 mi
4:52:47
Rank: #24366 (-3)
25.2M → Finish
11:18 | 11:05/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:09:55
Pace9:55 /mi
2nd Half
Distance13.11 mi
Time2:42:52
Pace12:25 /mi
📊Positive Split: 25.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:35:0528:589:1928:58
9:19
-
10K
6.21 mi11:05:1159:049:3030:06
9:41
+0:22
15K
9.32 mi11:36:531:30:469:4431:42
10:12
+0:31
20K
12.43 mi12:08:262:02:199:5131:33
10:09
-0:03
Half
13.11 mi12:16:022:09:559:557:36
11:08
+0:59
25K
15.53 mi12:43:572:37:5010:1027:55
11:31
+0:23
30K
18.64 mi13:20:333:14:2610:2636:36
11:47
+0:16
20M
20.00 mi13:37:463:31:3910:3517:13
12:40
+0:53
21M
21.00 mi13:53:063:46:5910:4915:20
15:20
+2:40
35K
21.75 mi14:01:133:55:0610:498:07
10:51
-4:29
23M
23.00 mi14:17:334:11:2610:5616:20
13:03
+2:12
24M
24.00 mi14:28:444:22:3710:5711:11
11:11
-1:52
40K
24.85 mi14:42:454:36:3811:0814:01
16:24
+5:13
25.2M
25.20 mi14:47:364:41:2911:104:51
14:04
-2:20
Finish
26.22 mi14:58:544:52:4711:1011:18
11:05
-2:59

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

9:19 /mi

Average Pace

11:10 /mi

Slowest Pace

16:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:30:37

31% of race

Time at Steady Pace

2:14:25

46% of race

Time at Slower Pace

1:07:45

23% of race

Average Pace: 11:10 /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 mi10:35:0528:589:1928:58
9:19
#21614
10K
6.21 mi11:05:1159:049:3030:06
9:41
#22342
15K
9.32 mi11:36:531:30:469:4431:42
10:12
#22989
20K
12.43 mi12:08:262:02:199:5131:33
10:09
#23044
Half
13.11 mi12:16:022:09:559:557:36
11:08
#23210
25K
15.53 mi12:43:572:37:5010:1027:55
11:31
#23529
30K
18.64 mi13:20:333:14:2610:2636:36
11:47
#23670
20M
20.00 mi13:37:463:31:3910:3517:13
12:40
#23821
21M
21.00 mi13:53:063:46:5910:4915:20
15:20
#24054
35K
21.75 mi14:01:133:55:0610:498:07
10:51
#24024
23M
23.00 mi14:17:334:11:2610:5616:20
13:03
#24121
24M
24.00 mi14:28:444:22:3710:5711:11
11:11
#24089
40K
24.85 mi14:42:454:36:3811:0814:01
16:24
#24331
25.2M
25.20 mi14:47:364:41:2911:104:51
14:04
#24363
Finish
26.22 mi14:58:544:52:4711:1011:18
11:05
#24366
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi216148702870223895(Top 90%)9838(Top 86%)9838(Top 201%)
10K6.21 mi3.10 mi22342-7289019-3179019-31723030(Top 87%)9349(Top 82%)9349(Top 191%)
15K9.32 mi3.11 mi22989-6479351-3329351-33223895(Top 90%)9838(Top 86%)9838(Top 201%)
20K12.43 mi3.11 mi23044-559369-189369-1823224(Top 87%)9468(Top 83%)9468(Top 194%)
Half13.11 mi0.68 mi23210-1669462-939462-9325132(Top 94%)10563(Top 92%)10563(Top 216%)
25K15.53 mi2.42 mi23529-3199639-1779639-17724691(Top 93%)10336(Top 90%)10336(Top 212%)
30K18.64 mi3.11 mi23670-1419735-969735-9624238(Top 91%)10145(Top 89%)10145(Top 208%)
20M20.00 mi1.36 mi23821-1519829-949829-9424894(Top 94%)10547(Top 92%)10547(Top 216%)
21M21.00 mi1.00 mi24054-2339971-1429971-14225917(Top 97%)11060(Top 97%)11060(Top 226%)
35K21.75 mi0.75 mi24024+309957+149957+1423040(Top 87%)9617(Top 84%)9617(Top 197%)
23M23.00 mi1.25 mi24121-9710032-7510032-7525133(Top 94%)10700(Top 94%)10700(Top 219%)
24M24.00 mi1.00 mi24089+3210018+1410018+1423389(Top 88%)9844(Top 86%)9844(Top 202%)
40K24.85 mi0.85 mi24331-24210155-13710155-13726472(Top 99%)11369(Top 100%)11369(Top 233%)
25.2M25.20 mi0.35 mi24363-3210180-2510180-2525059(Top 94%)10727(Top 94%)10727(Top 220%)
Finish26.22 mi1.02 mi24366-310187-710187-724133(Top 91%)10225(Top 90%)10225(Top 209%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21stories
+97ft-345ft

Overall

23895

Females

9838

F18-39

9838

5K→10K

3.1 - 6.2 mi

Top 87%
×5stories
+79ft-138ft

Overall

23030

Females

9349

F18-39

9349

10K→15K

6.2 - 9.3 mi

Top 90%
×3stories
+67ft-78ft

Overall

23895

Females

9838

F18-39

9838

15K→20K

9.3 - 12.4 mi

Top 87%
×5stories
+106ft-86ft

Overall

23224

Females

9468

F18-39

9468

20K→Half

12.4 - 13.1 mi

Top 94%
×2stories
+19ft-37ft

Overall

25132

Females

10563

F18-39

10563

Half→25K

13.1 - 15.5 mi

Top 93%
×4stories
+66ft-88ft

Overall

24691

Females

10336

F18-39

10336

25K→30K

15.5 - 18.6 mi

Top 91%
×9stories
+181ft-148ft

Overall

24238

Females

10145

F18-39

10145

30K→20M

18.6 - 20.0 mi

Top 94%
×5stories
+64ft-50ft

Overall

24894

Females

10547

F18-39

10547

20M→21M

20.0 - 21.0 mi

Top 97%
×8stories
+106ft-24ft

Overall

25917

Females

11060

F18-39

11060

21M→35K

21.0 - 21.8 mi

Top 87%
×7stories
+17ft-86ft

Overall

23040

Females

9617

F18-39

9617

35K→23M

21.8 - 23.0 mi

Top 94%
×5stories
+23ft-63ft

Overall

25133

Females

10700

F18-39

10700

23M→24M

23.0 - 24.0 mi

Top 88%
×6stories
+12ft-82ft

Overall

23389

Females

9844

F18-39

9844

24M→40K

24.0 - 24.9 mi

Top 99%
×1story
+6ft-20ft

Overall

26472

Females

11369

F18-39

11369

40K→25.2M

24.9 - 25.2 mi

Top 94%
×1story
+13ft-16ft

Overall

25059

Females

10727

F18-39

10727

25.2M→Finish

25.2 - 26.2 mi

Top 91%
×2stories
+22ft-21ft

Overall

24133

Females

10225

F18-39

10225

Passing Analysis

Category:
Athletes Passed
435
Passed By
3187
Net Change
-2752
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21614
5K → 10K60788-728#21614#22342
10K → 15K30677-647#22342#22989
15K → 20K112167-55#22989#23044
20K → Half4170-166#23044#23210
Half → 25K20339-319#23210#23529
25K → 30K55196-141#23529#23670
30K → 20M22173-151#23670#23821
20M → 21M2235-233#23821#24054
21M → 35K366+30#24054#24024
35K → 23M11108-97#24024#24121
23M → 24M4917+32#24121#24089
24M → 40K3245-242#24089#24331
40K → 25.2M739-32#24331#24363
25.2M → Finish2427-3#24363#24366
TOTALS4353187-2752
📊

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