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BOSTON MARATHON 2023

Jennifer Lambert

Bib: 21890•F

FL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F50-54)
#0 / 1207
Top 49%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:19
Rank: #15088
Start → 5K
25:19 | 8:09/mi
10K· 6.21 mi
50:16
Rank: #15048 (+40)
5K → 10K
24:57 | 8:02/mi
15K· 9.32 mi
1:15:08
Rank: #14839 (+209)
10K → 15K
24:52 | 8:00/mi
20K· 12.43 mi
1:40:30
Rank: #14772 (+67)
15K → 20K
25:22 | 8:10/mi
Half· 13.11 mi
1:46:07
Rank: #14845 (-73)
20K → Half
5:37 | 8:14/mi
25K· 15.53 mi
2:06:56
Rank: #15146 (-301)
Half → 25K
20:49 | 8:35/mi
30K· 18.64 mi
2:36:21
Rank: #16070 (-924)
25K → 30K
29:25 | 9:28/mi
20M
2:49:55
Rank: #16509 (-439)
30K → 20M
13:34 | 9:59/mi
21M
3:00:59
Rank: #16909 (-400)
20M → 21M
11:04 | 11:04/mi
35K· 21.75 mi
3:08:39
Rank: #17189 (-280)
21M → 35K
7:40 | 10:15/mi
23M
3:21:27
Rank: #17509 (-320)
35K → 23M
12:48 | 10:13/mi
24M
3:31:41
Rank: #17838 (-329)
23M → 24M
10:14 | 10:14/mi
40K· 24.85 mi
3:40:21
Rank: #17981 (-143)
24M → 40K
8:40 | 10:08/mi
25.2M
3:44:01
Rank: #18016 (-35)
40K → 25.2M
3:40 | 10:38/mi
Finish· 26.22 mi
3:53:30
Rank: #18091 (-75)
25.2M → Finish
9:29 | 9:18/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:07
Pace8:06 /mi
2nd Half
Distance13.11 mi
Time2:07:23
Pace9:43 /mi
📊Positive Split: 20.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:1025:198:0925:19
8:09
-
10K
6.21 mi11:43:0750:168:0524:57
8:02
-0:07
15K
9.32 mi12:07:591:15:088:0424:52
8:00
-0:02
20K
12.43 mi12:33:211:40:308:0525:22
8:10
+0:10
Half
13.11 mi12:38:581:46:078:065:37
8:14
+0:04
25K
15.53 mi12:59:472:06:568:1020:49
8:35
+0:21
30K
18.64 mi13:29:122:36:218:2329:25
9:28
+0:53
20M
20.00 mi13:42:462:49:558:3013:34
9:59
+0:31
21M
21.00 mi13:53:503:00:598:3711:04
11:04
+1:05
35K
21.75 mi14:01:303:08:398:407:40
10:15
-0:49
23M
23.00 mi14:14:183:21:278:4612:48
10:13
-0:02
24M
24.00 mi14:24:323:31:418:4910:14
10:14
+0:01
40K
24.85 mi14:33:123:40:218:528:40
10:08
-0:06
25.2M
25.20 mi14:36:523:44:018:533:40
10:38
+0:30
Finish
26.22 mi14:46:213:53:308:559:29
9:18
-1:20

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

8:00 /mi

Average Pace

8:55 /mi

Slowest Pace

11:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:06:56

54% of race

Time at Steady Pace

52:28

22% of race

Time at Slower Pace

54:06

23% of race

Average Pace: 8:54 /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 mi11:18:1025:198:0925:19
8:09
#15088
10K
6.21 mi11:43:0750:168:0524:57
8:02
#15048
15K
9.32 mi12:07:591:15:088:0424:52
8:00
#14839
20K
12.43 mi12:33:211:40:308:0525:22
8:10
#14772
Half
13.11 mi12:38:581:46:078:065:37
8:14
#14845
25K
15.53 mi12:59:472:06:568:1020:49
8:35
#15146
30K
18.64 mi13:29:122:36:218:2329:25
9:28
#16070
20M
20.00 mi13:42:462:49:558:3013:34
9:59
#16509
21M
21.00 mi13:53:503:00:598:3711:04
11:04
#16909
35K
21.75 mi14:01:303:08:398:407:40
10:15
#17189
23M
23.00 mi14:14:183:21:278:4612:48
10:13
#17509
24M
24.00 mi14:24:323:31:418:4910:14
10:14
#17838
40K
24.85 mi14:33:123:40:218:528:40
10:08
#17981
25.2M
25.20 mi14:36:523:44:018:533:40
10:38
#18016
Finish
26.22 mi14:46:213:53:308:559:29
9:18
#18091
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi150884707470714439(Top 54%)4347(Top 38%)4347(Top 360%)
10K6.21 mi3.10 mi15048+404678+294678+2915037(Top 56%)4706(Top 41%)4706(Top 390%)
15K9.32 mi3.11 mi14839+2094563+1154563+11514439(Top 54%)4347(Top 38%)4347(Top 360%)
20K12.43 mi3.11 mi14772+674542+214542+2114733(Top 55%)4554(Top 40%)4554(Top 377%)
Half13.11 mi0.68 mi14845-734590-484590-4816118(Top 61%)5386(Top 47%)5386(Top 446%)
25K15.53 mi2.42 mi15146-3014800-2104800-21016752(Top 63%)5872(Top 51%)5872(Top 486%)
30K18.64 mi3.11 mi16070-9245416-6165416-61619311(Top 73%)7363(Top 64%)7363(Top 610%)
20M20.00 mi1.36 mi16509-4395706-2905706-29020440(Top 77%)8096(Top 71%)8096(Top 671%)
21M21.00 mi1.00 mi16909-4005930-2245930-22420964(Top 79%)8437(Top 74%)8437(Top 699%)
35K21.75 mi0.75 mi17189-2806112-1826112-18221878(Top 82%)8977(Top 79%)8977(Top 744%)
23M23.00 mi1.25 mi17509-3206328-2166328-21620640(Top 78%)8313(Top 73%)8313(Top 689%)
24M24.00 mi1.00 mi17838-3296528-2006528-20021410(Top 80%)8791(Top 77%)8791(Top 728%)
40K24.85 mi0.85 mi17981-1436627-996627-9920334(Top 76%)8239(Top 72%)8239(Top 683%)
25.2M25.20 mi0.35 mi18016-356652-256652-2519531(Top 73%)7796(Top 68%)7796(Top 646%)
Finish26.22 mi1.02 mi18091-756705-536705-5319403(Top 73%)7672(Top 67%)7672(Top 636%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21stories
+97ft-345ft

Overall

14439

Females

4347

F50-54

4347

5K→10K

3.1 - 6.2 mi

Top 56%
×5stories
+79ft-138ft

Overall

15037

Females

4706

F50-54

4706

10K→15K

6.2 - 9.3 mi

Top 54%
×3stories
+67ft-78ft

Overall

14439

Females

4347

F50-54

4347

15K→20K

9.3 - 12.4 mi

Top 55%
×5stories
+106ft-86ft

Overall

14733

Females

4554

F50-54

4554

20K→Half

12.4 - 13.1 mi

Top 61%
×2stories
+19ft-37ft

Overall

16118

Females

5386

F50-54

5386

Half→25K

13.1 - 15.5 mi

Top 63%
×4stories
+66ft-88ft

Overall

16752

Females

5872

F50-54

5872

25K→30K

15.5 - 18.6 mi

Top 73%
×9stories
+181ft-148ft

Overall

19311

Females

7363

F50-54

7363

30K→20M

18.6 - 20.0 mi

Top 77%
×5stories
+64ft-50ft

Overall

20440

Females

8096

F50-54

8096

20M→21M

20.0 - 21.0 mi

Top 79%
×8stories
+106ft-24ft

Overall

20964

Females

8437

F50-54

8437

21M→35K

21.0 - 21.8 mi

Top 82%
×7stories
+17ft-86ft

Overall

21878

Females

8977

F50-54

8977

35K→23M

21.8 - 23.0 mi

Top 78%
×5stories
+23ft-63ft

Overall

20640

Females

8313

F50-54

8313

23M→24M

23.0 - 24.0 mi

Top 80%
×6stories
+12ft-82ft

Overall

21410

Females

8791

F50-54

8791

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

20334

Females

8239

F50-54

8239

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

19531

Females

7796

F50-54

7796

25.2M→Finish

25.2 - 26.2 mi

Top 73%
×2stories
+22ft-21ft

Overall

19403

Females

7672

F50-54

7672

Passing Analysis

Category:
Athletes Passed
1086
Passed By
4089
Net Change
-3003
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15088
5K → 10K318278+40#15088#15048
10K → 15K30192+209#15048#14839
15K → 20K211144+67#14839#14772
20K → Half1588-73#14772#14845
Half → 25K68369-301#14845#15146
25K → 30K27951-924#15146#16070
30K → 20M19458-439#16070#16509
20M → 21M11411-400#16509#16909
21M → 35K9289-280#16909#17189
35K → 23M29349-320#17189#17509
23M → 24M14343-329#17509#17838
24M → 40K18161-143#17838#17981
40K → 25.2M1853-35#17981#18016
25.2M → Finish28103-75#18016#18091
TOTALS10864089-3003
📊

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