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BOSTON MARATHON 2023

Jennifer Lybrand

Bib: 13790•F

SC

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 42%
Gender (Female)
#0 / 11423
Top 23%
Division (F18-39)
#0 / 4884
Top 39%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:09
Rank: #12124
Start → 5K
24:09 | 7:46/mi
10K· 6.21 mi
48:10
Rank: #12290 (-166)
5K → 10K
24:01 | 7:44/mi
15K· 9.32 mi
1:11:58
Rank: #11975 (+315)
10K → 15K
23:48 | 7:40/mi
20K· 12.43 mi
1:35:34
Rank: #11446 (+529)
15K → 20K
23:36 | 7:36/mi
Half· 13.11 mi
1:40:41
Rank: #11368 (+78)
20K → Half
5:07 | 7:30/mi
25K· 15.53 mi
1:59:00
Rank: #10987 (+381)
Half → 25K
18:19 | 7:33/mi
30K· 18.64 mi
2:23:17
Rank: #10651 (+336)
25K → 30K
24:17 | 7:49/mi
20M
2:34:16
Rank: #10667 (-16)
30K → 20M
10:59 | 8:05/mi
21M
2:43:03
Rank: #10729 (-62)
20M → 21M
8:47 | 8:47/mi
35K· 21.75 mi
2:49:09
Rank: #10798 (-69)
21M → 35K
6:06 | 8:09/mi
23M
2:59:46
Rank: #10919 (-121)
35K → 23M
10:37 | 8:29/mi
24M
3:08:00
Rank: #11010 (-91)
23M → 24M
8:14 | 8:14/mi
40K· 24.85 mi
3:15:15
Rank: #11082 (-72)
24M → 40K
7:15 | 8:29/mi
25.2M
3:18:20
Rank: #11099 (-17)
40K → 25.2M
3:05 | 8:56/mi
Finish· 26.22 mi
3:26:27
Rank: #11118 (-19)
25.2M → Finish
8:07 | 7:58/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:41
Pace7:41 /mi
2nd Half
Distance13.11 mi
Time1:45:46
Pace8:04 /mi
📊Positive Split: 5.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:1924:097:4624:09
7:46
-
10K
6.21 mi11:17:2048:107:4524:01
7:44
-0:02
15K
9.32 mi11:41:081:11:587:4323:48
7:40
-0:04
20K
12.43 mi12:04:441:35:347:4123:36
7:36
-0:04
Half
13.11 mi12:09:511:40:417:415:07
7:30
-0:06
25K
15.53 mi12:28:101:59:007:4018:19
7:33
+0:03
30K
18.64 mi12:52:272:23:177:4124:17
7:49
+0:16
20M
20.00 mi13:03:262:34:167:4310:59
8:05
+0:16
21M
21.00 mi13:12:132:43:037:468:47
8:47
+0:42
35K
21.75 mi13:18:192:49:097:476:06
8:09
-0:38
23M
23.00 mi13:28:562:59:467:4910:37
8:29
+0:20
24M
24.00 mi13:37:103:08:007:508:14
8:14
-0:15
40K
24.85 mi13:44:253:15:157:517:15
8:29
+0:15
25.2M
25.20 mi13:47:303:18:207:523:05
8:56
+0:27
Finish
26.22 mi13:55:373:26:277:538:07
7:58
-0:58

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

7:30 /mi

Average Pace

7:53 /mi

Slowest Pace

8:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:56:43

86% of race

Time at Steady Pace

26:39

13% of race

Time at Slower Pace

3:05

1% of race

Average Pace: 7:52 /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 mi10:53:1924:097:4624:09
7:46
#12124
10K
6.21 mi11:17:2048:107:4524:01
7:44
#12290
15K
9.32 mi11:41:081:11:587:4323:48
7:40
#11975
20K
12.43 mi12:04:441:35:347:4123:36
7:36
#11446
Half
13.11 mi12:09:511:40:417:415:07
7:30
#11368
25K
15.53 mi12:28:101:59:007:4018:19
7:33
#10987
30K
18.64 mi12:52:272:23:177:4124:17
7:49
#10651
20M
20.00 mi13:03:262:34:167:4310:59
8:05
#10667
21M
21.00 mi13:12:132:43:037:468:47
8:47
#10729
35K
21.75 mi13:18:192:49:097:476:06
8:09
#10798
23M
23.00 mi13:28:562:59:467:4910:37
8:29
#10919
24M
24.00 mi13:37:103:08:007:508:14
8:14
#11010
40K
24.85 mi13:44:253:15:157:517:15
8:29
#11082
25.2M
25.20 mi13:47:303:18:207:523:05
8:56
#11099
Finish
26.22 mi13:55:373:26:277:538:07
7:58
#11118
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi121242937293711521(Top 43%)2643(Top 23%)2643(Top 54%)
10K6.21 mi3.10 mi12290-1663030-933030-9312517(Top 47%)3156(Top 28%)3156(Top 65%)
15K9.32 mi3.11 mi11975+3152878+1522878+15211521(Top 43%)2643(Top 23%)2643(Top 54%)
20K12.43 mi3.11 mi11446+5292585+2932585+29310082(Top 38%)1955(Top 17%)1955(Top 40%)
Half13.11 mi0.68 mi11368+782546+392546+3910313(Top 39%)2046(Top 18%)2046(Top 42%)
25K15.53 mi2.42 mi10987+3812345+2012345+2019224(Top 35%)1650(Top 14%)1650(Top 34%)
30K18.64 mi3.11 mi10651+3362229+1162229+1169501(Top 36%)1932(Top 17%)1932(Top 40%)
20M20.00 mi1.36 mi10667-162267-382267-3810905(Top 41%)2685(Top 24%)2685(Top 55%)
21M21.00 mi1.00 mi10729-622315-482315-4812165(Top 46%)3486(Top 31%)3486(Top 71%)
35K21.75 mi0.75 mi10798-692372-572372-5713150(Top 49%)4071(Top 36%)4071(Top 83%)
23M23.00 mi1.25 mi10919-1212460-882460-8813094(Top 49%)4115(Top 36%)4115(Top 84%)
24M24.00 mi1.00 mi11010-912531-712531-7112835(Top 48%)4034(Top 35%)4034(Top 83%)
40K24.85 mi0.85 mi11082-722593-622593-6213204(Top 50%)4302(Top 38%)4302(Top 88%)
25.2M25.20 mi0.35 mi11099-172614-212614-2112197(Top 46%)3810(Top 33%)3810(Top 78%)
Finish26.22 mi1.02 mi11118-192651-372651-3711880(Top 45%)3637(Top 32%)3637(Top 74%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21stories
+97ft-345ft

Overall

11521

Females

2643

F18-39

2643

5K→10K

3.1 - 6.2 mi

Top 47%
×5stories
+79ft-138ft

Overall

12517

Females

3156

F18-39

3156

10K→15K

6.2 - 9.3 mi

Top 43%
×3stories
+67ft-78ft

Overall

11521

Females

2643

F18-39

2643

15K→20K

9.3 - 12.4 mi

Top 38%
×5stories
+106ft-86ft

Overall

10082

Females

1955

F18-39

1955

20K→Half

12.4 - 13.1 mi

Top 39%
×2stories
+19ft-37ft

Overall

10313

Females

2046

F18-39

2046

Half→25K

13.1 - 15.5 mi

Top 35%
×4stories
+66ft-88ft

Overall

9224

Females

1650

F18-39

1650

25K→30K

15.5 - 18.6 mi

Top 36%
×9stories
+181ft-148ft

Overall

9501

Females

1932

F18-39

1932

30K→20M

18.6 - 20.0 mi

Top 41%
×5stories
+64ft-50ft

Overall

10905

Females

2685

F18-39

2685

20M→21M

20.0 - 21.0 mi

Top 46%
×8stories
+106ft-24ft

Overall

12165

Females

3486

F18-39

3486

21M→35K

21.0 - 21.8 mi

Top 49%
×7stories
+17ft-86ft

Overall

13150

Females

4071

F18-39

4071

35K→23M

21.8 - 23.0 mi

Top 49%
×5stories
+23ft-63ft

Overall

13094

Females

4115

F18-39

4115

23M→24M

23.0 - 24.0 mi

Top 48%
×6stories
+12ft-82ft

Overall

12835

Females

4034

F18-39

4034

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

13204

Females

4302

F18-39

4302

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

12197

Females

3810

F18-39

3810

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2stories
+22ft-21ft

Overall

11880

Females

3637

F18-39

3637

Passing Analysis

Category:
Athletes Passed
2395*
Passed By
1389
Net Change
+1006
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12124
5K → 10K237403-166#12124#12290
10K → 15K38469+315#12290#11975
15K → 20K54718+529#11975#11446
20K → Half824+78#11446#11368
Half → 25K3854+381#11368#10987
25K → 30K37640+336#10987#10651
30K → 20M74*90-16#10651#10667
20M → 21M48110-62#10667#10729
21M → 35K33102-69#10729#10798
35K → 23M49170-121#10798#10919
23M → 24M44135-91#10919#11010
24M → 40K49121-72#11010#11082
40K → 25.2M2441-17#11082#11099
25.2M → Finish6382-19#11099#11118
TOTALS2395*1389+1006

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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