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BOSTON MARATHON 2023

Jennifer Campbell

Bib: 26414•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 (F40-44)
#0 / 1878
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
31:58
Rank: #24192
Start → 5K
31:58 | 10:17/mi
10K· 6.21 mi
1:02:48
Rank: #23864 (+328)
5K → 10K
30:50 | 9:55/mi
15K· 9.32 mi
1:31:08
Rank: #23093 (+771)
10K → 15K
28:20 | 9:07/mi
20K· 12.43 mi
1:59:15
Rank: #22382 (+711)
15K → 20K
28:07 | 9:03/mi
Half· 13.11 mi
2:05:20
Rank: #22284 (+98)
20K → Half
6:05 | 8:55/mi
25K· 15.53 mi
2:27:17
Rank: #21836 (+448)
Half → 25K
21:57 | 9:03/mi
30K· 18.64 mi
2:56:30
Rank: #21381 (+455)
25K → 30K
29:13 | 9:24/mi
20M
3:09:17
Rank: #21171 (+210)
30K → 20M
12:47 | 9:24/mi
21M
3:18:25
Rank: #20848 (+323)
20M → 21M
9:08 | 9:08/mi
35K· 21.75 mi
3:24:55
Rank: #20701 (+147)
21M → 35K
6:30 | 8:41/mi
23M
3:36:06
Rank: #20450 (+251)
35K → 23M
11:11 | 8:56/mi
24M
3:44:32
Rank: #20261 (+189)
23M → 24M
8:26 | 8:26/mi
40K· 24.85 mi
3:51:39
Rank: #20056 (+205)
24M → 40K
7:07 | 8:19/mi
25.2M
3:54:41
Rank: #19954 (+102)
40K → 25.2M
3:02 | 8:48/mi
Finish· 26.22 mi
4:03:02
Rank: #19758 (+196)
25.2M → Finish
8:21 | 8:12/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time2:05:20
Pace9:34 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:57:42
Pace8:59 /mi
📊Negative Split: 6.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:1531:5810:1731:58
10:17
-
10K
6.21 mi12:20:051:02:4810:0630:50
9:55
-0:22
15K
9.32 mi12:48:251:31:089:4728:20
9:07
-0:48
20K
12.43 mi13:16:321:59:159:3628:07
9:03
-0:04
Half
13.11 mi13:22:372:05:209:346:05
8:55
-0:08
25K
15.53 mi13:44:342:27:179:2921:57
9:03
+0:08
30K
18.64 mi14:13:472:56:309:2829:13
9:24
+0:21
20M
20.00 mi14:26:343:09:179:2812:47
9:24
0:00
21M
21.00 mi14:35:423:18:259:279:08
9:08
-0:16
35K
21.75 mi14:42:123:24:559:256:30
8:41
-0:27
23M
23.00 mi14:53:233:36:069:2411:11
8:56
+0:15
24M
24.00 mi15:01:493:44:329:218:26
8:26
-0:30
40K
24.85 mi15:08:563:51:399:197:07
8:19
-0:07
25.2M
25.20 mi15:11:583:54:419:193:02
8:48
+0:29
Finish
26.22 mi15:20:194:03:029:178:21
8:12
-0:36

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

8:12 /mi

Average Pace

9:17 /mi

Slowest Pace

10:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

30:24

13% of race

Time at Steady Pace

1:47:50

44% of race

Time at Slower Pace

1:44:48

43% of race

Average Pace: 9:16 /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 mi11:49:1531:5810:1731:58
10:17
#24192
10K
6.21 mi12:20:051:02:4810:0630:50
9:55
#23864
15K
9.32 mi12:48:251:31:089:4728:20
9:07
#23093
20K
12.43 mi13:16:321:59:159:3628:07
9:03
#22382
Half
13.11 mi13:22:372:05:209:346:05
8:55
#22284
25K
15.53 mi13:44:342:27:179:2921:57
9:03
#21836
30K
18.64 mi14:13:472:56:309:2829:13
9:24
#21381
20M
20.00 mi14:26:343:09:179:2812:47
9:24
#21171
21M
21.00 mi14:35:423:18:259:279:08
9:08
#20848
35K
21.75 mi14:42:123:24:559:256:30
8:41
#20701
23M
23.00 mi14:53:233:36:069:2411:11
8:56
#20450
24M
24.00 mi15:01:493:44:329:218:26
8:26
#20261
40K
24.85 mi15:08:563:51:399:197:07
8:19
#20056
25.2M
25.20 mi15:11:583:54:419:193:02
8:48
#19954
Finish
26.22 mi15:20:194:03:029:178:21
8:12
#19758
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi241929983998321018(Top 79%)8242(Top 72%)8242(Top 439%)
10K6.21 mi3.10 mi23864+3289816+1679816+16723544(Top 88%)9647(Top 84%)9647(Top 514%)
15K9.32 mi3.11 mi23093+7719398+4189398+41821018(Top 79%)8242(Top 72%)8242(Top 439%)
20K12.43 mi3.11 mi22382+7119019+3799019+37919937(Top 75%)7641(Top 67%)7641(Top 407%)
Half13.11 mi0.68 mi22284+988976+438976+4320089(Top 75%)7716(Top 68%)7716(Top 411%)
25K15.53 mi2.42 mi21836+4488729+2478729+24719224(Top 72%)7262(Top 64%)7262(Top 387%)
30K18.64 mi3.11 mi21381+4558492+2378492+23719065(Top 72%)7235(Top 63%)7235(Top 385%)
20M20.00 mi1.36 mi21171+2108398+948398+9418464(Top 69%)7012(Top 61%)7012(Top 373%)
21M21.00 mi1.00 mi20848+3238224+1748224+17414164(Top 53%)4584(Top 40%)4584(Top 244%)
35K21.75 mi0.75 mi20701+1478147+778147+7716407(Top 62%)5956(Top 52%)5956(Top 317%)
23M23.00 mi1.25 mi20450+2518025+1228025+12215736(Top 59%)5605(Top 49%)5605(Top 298%)
24M24.00 mi1.00 mi20261+1897924+1017924+10114142(Top 53%)4769(Top 42%)4769(Top 254%)
40K24.85 mi0.85 mi20056+2057815+1097815+10912268(Top 46%)3825(Top 33%)3825(Top 204%)
25.2M25.20 mi0.35 mi19954+1027761+547761+5411453(Top 43%)3465(Top 30%)3465(Top 185%)
Finish26.22 mi1.02 mi19758+1967646+1157646+11513442(Top 50%)4446(Top 39%)4446(Top 237%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21stories
+97ft-345ft

Overall

21018

Females

8242

F40-44

8242

5K→10K

3.1 - 6.2 mi

Top 88%
×5stories
+79ft-138ft

Overall

23544

Females

9647

F40-44

9647

10K→15K

6.2 - 9.3 mi

Top 79%
×3stories
+67ft-78ft

Overall

21018

Females

8242

F40-44

8242

15K→20K

9.3 - 12.4 mi

Top 75%
×5stories
+106ft-86ft

Overall

19937

Females

7641

F40-44

7641

20K→Half

12.4 - 13.1 mi

Top 75%
×2stories
+19ft-37ft

Overall

20089

Females

7716

F40-44

7716

Half→25K

13.1 - 15.5 mi

Top 72%
×4stories
+66ft-88ft

Overall

19224

Females

7262

F40-44

7262

25K→30K

15.5 - 18.6 mi

Top 72%
×9stories
+181ft-148ft

Overall

19065

Females

7235

F40-44

7235

30K→20M

18.6 - 20.0 mi

Top 69%
×5stories
+64ft-50ft

Overall

18464

Females

7012

F40-44

7012

20M→21M

20.0 - 21.0 mi

Top 53%
×8stories
+106ft-24ft

Overall

14164

Females

4584

F40-44

4584

21M→35K

21.0 - 21.8 mi

Top 62%
×7stories
+17ft-86ft

Overall

16407

Females

5956

F40-44

5956

35K→23M

21.8 - 23.0 mi

Top 59%
×5stories
+23ft-63ft

Overall

15736

Females

5605

F40-44

5605

23M→24M

23.0 - 24.0 mi

Top 53%
×6stories
+12ft-82ft

Overall

14142

Females

4769

F40-44

4769

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

12268

Females

3825

F40-44

3825

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

11453

Females

3465

F40-44

3465

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2stories
+22ft-21ft

Overall

13442

Females

4446

F40-44

4446

Passing Analysis

Category:
Athletes Passed
4524
Passed By
90
Net Change
+4434
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24192
5K → 10K40880+328#24192#23864
10K → 15K7710+771#23864#23093
15K → 20K7110+711#23093#22382
20K → Half991+98#22382#22284
Half → 25K4502+448#22284#21836
25K → 30K4561+455#21836#21381
30K → 20M2133+210#21381#21171
20M → 21M3230+323#21171#20848
21M → 35K1481+147#20848#20701
35K → 23M2510+251#20701#20450
23M → 24M1912+189#20450#20261
24M → 40K2050+205#20261#20056
40K → 25.2M1020+102#20056#19954
25.2M → Finish1960+196#19954#19758
TOTALS452490+4434
📊

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