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BOSTON MARATHON 2023

Jennifer Bell

Bib: 15827•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F55-59)
#0 / 815
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
9:08/mi
28:22
↑ 97↓ 3451.5%
10K· 6.21 mi
9:08/mi
56:43
↑ 79↓ 1380.4%
15K· 9.32 mi
9:39/mi
1:26:43
↑ 67↓ 78
20K· 12.43 mi
9:56/mi
1:57:36
↑ 106↓ 860.1%
Half· 13.11 mi
9:57/mi
2:04:23
↑ 19↓ 370.5%
25K· 15.53 mi
10:14/mi
2:29:11
↑ 66↓ 880.2%
30K· 18.64 mi
10:42/mi
3:02:27
↑ 181↓ 1480.2%
20M
10:20/mi
3:16:29
↑ 64↓ 500.2%
21M
11:16/mi
3:27:45
↑ 106↓ 241.6%
35K· 21.75 mi
9:53/mi
3:35:09
↑ 17↓ 861.7%
23M
10:29/mi
3:48:16
↑ 23↓ 630.6%
24M
10:27/mi
3:58:43
↓ 821.3%
40K· 24.85 mi
10:29/mi
4:07:41
↓ 200.3%
25.2M
11:13/mi
4:11:33
↑ 13↓ 160.2%
Finish· 26.22 mi
9:41/mi
4:21:25
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:04:23
Pace9:29 /mi
2nd Half
Distance13.11 mi
Time2:17:02
Pace10:27 /mi
📊Positive Split: 10.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:59:1828:229:0828:22
9:08
-
10K
6.21 mi11:27:3956:439:0828:22
9:08
0:00
15K
9.32 mi11:57:391:26:439:1830:00
9:39
+0:31
20K
12.43 mi12:28:321:57:369:2830:53
9:56
+0:17
Half
13.11 mi12:35:192:04:239:296:47
9:57
+0:01
25K
15.53 mi13:00:072:29:119:3624:48
10:14
+0:17
30K
18.64 mi13:33:233:02:279:4733:16
10:42
+0:28
20M
20.00 mi13:47:253:16:299:4914:02
10:20
-0:22
21M
21.00 mi13:58:413:27:459:5411:16
11:16
+0:56
35K
21.75 mi14:06:053:35:099:547:24
9:53
-1:23
23M
23.00 mi14:19:123:48:169:5513:07
10:29
+0:36
24M
24.00 mi14:29:393:58:439:5710:27
10:27
-0:02
40K
24.85 mi14:38:374:07:419:588:58
10:29
+0:02
25.2M
25.20 mi14:42:294:11:339:593:52
11:13
+0:44
Finish
26.22 mi14:52:214:21:259:599:52
9:41
-1:32

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

9:08 /mi

Average Pace

9:59 /mi

Slowest Pace

11:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:43:59

40% of race

Time at Steady Pace

1:49:02

42% of race

Time at Slower Pace

48:24

19% of race

Average Pace: 9:58 /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 mi10:59:1828:229:0828:22
9:08
#20967
10K
6.21 mi11:27:3956:439:0828:22
9:08
#21165
15K
9.32 mi11:57:391:26:439:1830:00
9:39
#21705
20K
12.43 mi12:28:321:57:369:2830:53
9:56
#21989
Half
13.11 mi12:35:192:04:239:296:47
9:57
#22070
25K
15.53 mi13:00:072:29:119:3624:48
10:14
#22212
30K
18.64 mi13:33:233:02:279:4733:16
10:42
#22314
20M
20.00 mi13:47:253:16:299:4914:02
10:20
#22215
21M
21.00 mi13:58:413:27:459:5411:16
11:16
#22164
35K
21.75 mi14:06:053:35:099:547:24
9:53
#22116
23M
23.00 mi14:19:123:48:169:5513:07
10:29
#22067
24M
24.00 mi14:29:393:58:439:5710:27
10:27
#22052
40K
24.85 mi14:38:374:07:419:588:58
10:29
#22014
25.2M
25.20 mi14:42:294:11:339:593:52
11:13
#21998
Finish
26.22 mi14:52:214:21:259:599:52
9:41
#21966
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi209678356835622685(Top 85%)9180(Top 80%)9180(Top 1126%)
10K6.21 mi3.10 mi21165-1988401-458401-4521394(Top 80%)8498(Top 74%)8498(Top 1043%)
15K9.32 mi3.11 mi21705-5408679-2788679-27822685(Top 85%)9180(Top 80%)9180(Top 1126%)
20K12.43 mi3.11 mi21989-2848829-1508829-15022756(Top 85%)9221(Top 81%)9221(Top 1131%)
Half13.11 mi0.68 mi22070-818865-368865-3623162(Top 87%)9441(Top 83%)9441(Top 1158%)
25K15.53 mi2.42 mi22212-1428947-828947-8222687(Top 85%)9210(Top 81%)9210(Top 1130%)
30K18.64 mi3.11 mi22314-1029015-689015-6822626(Top 85%)9257(Top 81%)9257(Top 1136%)
20M20.00 mi1.36 mi22215+998969+468969+4621349(Top 80%)8611(Top 75%)8611(Top 1057%)
21M21.00 mi1.00 mi22164+518945+248945+2421419(Top 80%)8697(Top 76%)8697(Top 1067%)
35K21.75 mi0.75 mi22116+488930+158930+1521000(Top 79%)8495(Top 74%)8495(Top 1042%)
23M23.00 mi1.25 mi22067+498909+218909+2121275(Top 80%)8669(Top 76%)8669(Top 1064%)
24M24.00 mi1.00 mi22052+158906+38906+321931(Top 82%)9067(Top 79%)9067(Top 1113%)
40K24.85 mi0.85 mi22014+388893+138893+1321197(Top 80%)8725(Top 76%)8725(Top 1071%)
25.2M25.20 mi0.35 mi21998+168891+28891+220979(Top 79%)8585(Top 75%)8585(Top 1053%)
Finish26.22 mi1.02 mi21966+328888+38888+320757(Top 78%)8442(Top 74%)8442(Top 1036%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21story building
+97ft-345ft

Overall

22685

Females

9180

F55-59

9180

5K→10K

3.1 - 6.2 mi

Top 80%
×5story building
+79ft-138ft

Overall

21394

Females

8498

F55-59

8498

10K→15K

6.2 - 9.3 mi

Top 85%
×3story building
+67ft-78ft

Overall

22685

Females

9180

F55-59

9180

15K→20K

9.3 - 12.4 mi

Top 85%
×5story building
+106ft-86ft

Overall

22756

Females

9221

F55-59

9221

20K→Half

12.4 - 13.1 mi

Top 87%
×2story building
+19ft-37ft

Overall

23162

Females

9441

F55-59

9441

Half→25K

13.1 - 15.5 mi

Top 85%
×4story building
+66ft-88ft

Overall

22687

Females

9210

F55-59

9210

25K→30K

15.5 - 18.6 mi

Top 85%
×9story building
+181ft-148ft

Overall

22626

Females

9257

F55-59

9257

30K→20M

18.6 - 20.0 mi

Top 80%
×5story building
+64ft-50ft

Overall

21349

Females

8611

F55-59

8611

20M→21M

20.0 - 21.0 mi

Top 80%
×8story building
+106ft-24ft

Overall

21419

Females

8697

F55-59

8697

21M→35K

21.0 - 21.8 mi

Top 79%
×7story building
+17ft-86ft

Overall

21000

Females

8495

F55-59

8495

35K→23M

21.8 - 23.0 mi

Top 80%
×5story building
+23ft-63ft

Overall

21275

Females

8669

F55-59

8669

23M→24M

23.0 - 24.0 mi

Top 82%
×6story building
+12ft-82ft

Overall

21931

Females

9067

F55-59

9067

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

21197

Females

8725

F55-59

8725

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

20979

Females

8585

F55-59

8585

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2story building
+22ft-21ft

Overall

20757

Females

8442

F55-59

8442

Passing Analysis

Category:
Athletes Passed
952
Passed By
1951
Net Change
-999
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20967
5K → 10K195393-198#20967#21165
10K → 15K34574-540#21165#21705
15K → 20K51335-284#21705#21989
20K → Half889-81#21989#22070
Half → 25K63205-142#22070#22212
25K → 30K94196-102#22212#22314
30K → 20M11920+99#22314#22215
20M → 21M7726+51#22215#22164
21M → 35K579+48#22164#22116
35K → 23M7122+49#22116#22067
23M → 24M4732+15#22067#22052
24M → 40K5719+38#22052#22014
40K → 25.2M248+16#22014#21998
25.2M → Finish5523+32#21998#21966
TOTALS9521951-999
📊

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