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BOSTON MARATHON 2023

Jennifer Mitchell

Bib: 20621•F

OR

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
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
8:38/mi
26:48
↑ 97↓ 3451.5%
10K· 6.21 mi
8:37/mi
53:35
↑ 79↓ 1380.4%
15K· 9.32 mi
8:50/mi
1:21:01
↑ 67↓ 78
20K· 12.43 mi
9:05/mi
1:49:15
↑ 106↓ 860.1%
Half· 13.11 mi
8:48/mi
1:55:15
↑ 19↓ 370.5%
25K· 15.53 mi
9:18/mi
2:17:47
↑ 66↓ 880.2%
30K· 18.64 mi
9:17/mi
2:46:37
↑ 181↓ 1480.2%
20M
9:23/mi
2:59:22
↑ 64↓ 500.2%
21M
9:52/mi
3:09:14
↑ 106↓ 241.6%
35K· 21.75 mi
9:16/mi
3:16:10
↑ 17↓ 861.7%
23M
9:21/mi
3:27:52
↑ 23↓ 630.6%
24M
9:13/mi
3:37:05
↓ 821.3%
40K· 24.85 mi
9:13/mi
3:44:58
↓ 200.3%
25.2M
9:52/mi
3:48:22
↑ 13↓ 160.2%
Finish· 26.22 mi
8:56/mi
3:57:28
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:15
Pace8:47 /mi
2nd Half
Distance13.11 mi
Time2:02:13
Pace9:19 /mi
📊Positive Split: 6.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:4326:488:3826:48
8:38
-
10K
6.21 mi11:50:3053:358:3726:47
8:37
-0:01
15K
9.32 mi12:17:561:21:018:4227:26
8:50
+0:13
20K
12.43 mi12:46:101:49:158:4728:14
9:05
+0:15
Half
13.11 mi12:52:101:55:158:476:00
8:48
-0:17
25K
15.53 mi13:14:422:17:478:5222:32
9:18
+0:30
30K
18.64 mi13:43:322:46:378:5628:50
9:17
-0:01
20M
20.00 mi13:56:172:59:228:5812:45
9:23
+0:06
21M
21.00 mi14:06:093:09:149:019:52
9:52
+0:29
35K
21.75 mi14:13:053:16:109:016:56
9:16
-0:36
23M
23.00 mi14:24:473:27:529:0211:42
9:21
+0:05
24M
24.00 mi14:34:003:37:059:039:13
9:13
-0:08
40K
24.85 mi14:41:533:44:589:037:53
9:13
0:00
25.2M
25.20 mi14:45:173:48:229:043:24
9:52
+0:39
Finish
26.22 mi14:54:233:57:289:049:06
8:56
-0:56

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

8:37 /mi

Average Pace

9:04 /mi

Slowest Pace

9:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:44:12

94% of race

Time at Steady Pace

13:16

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:03 /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 mi11:23:4326:488:3826:48
8:38
#18403
10K
6.21 mi11:50:3053:358:3726:47
8:37
#18653
15K
9.32 mi12:17:561:21:018:4227:26
8:50
#19005
20K
12.43 mi12:46:101:49:158:4728:14
9:05
#19287
Half
13.11 mi12:52:101:55:158:476:00
8:48
#19272
25K
15.53 mi13:14:422:17:478:5222:32
9:18
#19458
30K
18.64 mi13:43:322:46:378:5628:50
9:17
#19305
20M
20.00 mi13:56:172:59:228:5812:45
9:23
#19213
21M
21.00 mi14:06:093:09:149:019:52
9:52
#19100
35K
21.75 mi14:13:053:16:109:016:56
9:16
#19106
23M
23.00 mi14:24:473:27:529:0211:42
9:21
#19023
24M
24.00 mi14:34:003:37:059:039:13
9:13
#18982
40K
24.85 mi14:41:533:44:589:037:53
9:13
#18915
25.2M
25.20 mi14:45:173:48:229:043:24
9:52
#18876
Finish
26.22 mi14:54:233:57:289:049:06
8:56
#18859
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi184036815681519677(Top 74%)7494(Top 66%)7494(Top 621%)
10K6.21 mi3.10 mi18653-2506914-996914-9918961(Top 71%)7065(Top 62%)7065(Top 585%)
15K9.32 mi3.11 mi19005-3527138-2247138-22419677(Top 74%)7494(Top 66%)7494(Top 621%)
20K12.43 mi3.11 mi19287-2827296-1587296-15820086(Top 75%)7715(Top 68%)7715(Top 639%)
Half13.11 mi0.68 mi19272+157282+147282+1419492(Top 73%)7370(Top 65%)7370(Top 611%)
25K15.53 mi2.42 mi19458-1867396-1147396-11420187(Top 76%)7797(Top 68%)7797(Top 646%)
30K18.64 mi3.11 mi19305+1537318+787318+7818538(Top 70%)6944(Top 61%)6944(Top 575%)
20M20.00 mi1.36 mi19213+927275+437275+4318408(Top 69%)6976(Top 61%)6976(Top 578%)
21M21.00 mi1.00 mi19100+1137224+517224+5117533(Top 66%)6501(Top 57%)6501(Top 539%)
35K21.75 mi0.75 mi19106-67232-87232-819030(Top 71%)7400(Top 65%)7400(Top 613%)
23M23.00 mi1.25 mi19023+837196+367196+3617728(Top 67%)6709(Top 59%)6709(Top 556%)
24M24.00 mi1.00 mi18982+417189+77189+718140(Top 68%)6976(Top 61%)6976(Top 578%)
40K24.85 mi0.85 mi18915+677152+377152+3717216(Top 65%)6528(Top 57%)6528(Top 541%)
25.2M25.20 mi0.35 mi18876+397137+157137+1516883(Top 63%)6374(Top 56%)6374(Top 528%)
Finish26.22 mi1.02 mi18859+177129+87129+817650(Top 66%)6735(Top 59%)6735(Top 558%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21story building
+97ft-345ft

Overall

19677

Females

7494

F50-54

7494

5K→10K

3.1 - 6.2 mi

Top 71%
×5story building
+79ft-138ft

Overall

18961

Females

7065

F50-54

7065

10K→15K

6.2 - 9.3 mi

Top 74%
×3story building
+67ft-78ft

Overall

19677

Females

7494

F50-54

7494

15K→20K

9.3 - 12.4 mi

Top 75%
×5story building
+106ft-86ft

Overall

20086

Females

7715

F50-54

7715

20K→Half

12.4 - 13.1 mi

Top 73%
×2story building
+19ft-37ft

Overall

19492

Females

7370

F50-54

7370

Half→25K

13.1 - 15.5 mi

Top 76%
×4story building
+66ft-88ft

Overall

20187

Females

7797

F50-54

7797

25K→30K

15.5 - 18.6 mi

Top 70%
×9story building
+181ft-148ft

Overall

18538

Females

6944

F50-54

6944

30K→20M

18.6 - 20.0 mi

Top 69%
×5story building
+64ft-50ft

Overall

18408

Females

6976

F50-54

6976

20M→21M

20.0 - 21.0 mi

Top 66%
×8story building
+106ft-24ft

Overall

17533

Females

6501

F50-54

6501

21M→35K

21.0 - 21.8 mi

Top 71%
×7story building
+17ft-86ft

Overall

19030

Females

7400

F50-54

7400

35K→23M

21.8 - 23.0 mi

Top 67%
×5story building
+23ft-63ft

Overall

17728

Females

6709

F50-54

6709

23M→24M

23.0 - 24.0 mi

Top 68%
×6story building
+12ft-82ft

Overall

18140

Females

6976

F50-54

6976

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

17216

Females

6528

F50-54

6528

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

16883

Females

6374

F50-54

6374

25.2M→Finish

25.2 - 26.2 mi

Top 66%
×2story building
+22ft-21ft

Overall

17650

Females

6735

F50-54

6735

Passing Analysis

Category:
Athletes Passed
1396
Passed By
1852
Net Change
-456
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18403
5K → 10K215465-250#18403#18653
10K → 15K73425-352#18653#19005
15K → 20K77359-282#19005#19287
20K → Half3116+15#19287#19272
Half → 25K70256-186#19272#19458
25K → 30K24693+153#19458#19305
30K → 20M12129+92#19305#19213
20M → 21M14330+113#19213#19100
21M → 35K3339-6#19100#19106
35K → 23M12239+83#19106#19023
23M → 24M7736+41#19023#18982
24M → 40K8619+67#18982#18915
40K → 25.2M5213+39#18915#18876
25.2M → Finish5033+17#18876#18859
TOTALS13961852-456
📊

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