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BOSTON MARATHON 2023

Rebecca Johnson

Bib: 13609•F

VA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 45%
Gender (Female)
#0 / 11423
Top 27%
Masters (Masters Women)
#0 / 6539
Top 14%
Division (F40-44)
#0 / 1878
Top 27%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:19
Rank: #12632
Start → 5K
24:19 | 7:50/mi
10K· 6.21 mi
48:17
Rank: #12458 (+174)
5K → 10K
23:58 | 7:43/mi
15K· 9.32 mi
1:12:59
Rank: #12970 (-512)
10K → 15K
24:42 | 7:57/mi
20K· 12.43 mi
1:37:05
Rank: #12507 (+463)
15K → 20K
24:06 | 7:45/mi
Half· 13.11 mi
1:42:19
Rank: #12460 (+47)
20K → Half
5:14 | 7:40/mi
25K· 15.53 mi
2:03:12
Rank: #13311 (-851)
Half → 25K
20:53 | 8:37/mi
30K· 18.64 mi
2:27:49
Rank: #12726 (+585)
25K → 30K
24:37 | 7:55/mi
20M
2:38:25
Rank: #12384 (+342)
30K → 20M
10:36 | 7:48/mi
21M
2:46:39
Rank: #12144 (+240)
20M → 21M
8:14 | 8:14/mi
35K· 21.75 mi
2:52:22
Rank: #12033 (+111)
21M → 35K
5:43 | 7:38/mi
23M
3:02:45
Rank: #12016 (+17)
35K → 23M
10:23 | 8:18/mi
24M
3:11:14
Rank: #12145 (-129)
23M → 24M
8:29 | 8:29/mi
40K· 24.85 mi
3:18:22
Rank: #12132 (+13)
24M → 40K
7:08 | 8:21/mi
25.2M
3:21:18
Rank: #12084 (+48)
40K → 25.2M
2:56 | 8:30/mi
Finish· 26.22 mi
3:29:09
Rank: #12001 (+83)
25.2M → Finish
7:51 | 7:42/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:19
Pace7:48 /mi
2nd Half
Distance13.11 mi
Time1:46:50
Pace8:09 /mi
📊Positive Split: 4.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:3224:197:5024:19
7:50
-
10K
6.21 mi11:16:3048:177:4623:58
7:43
-0:07
15K
9.32 mi11:41:121:12:597:5024:42
7:57
+0:14
20K
12.43 mi12:05:181:37:057:4924:06
7:45
-0:12
Half
13.11 mi12:10:321:42:197:485:14
7:40
-0:05
25K
15.53 mi12:31:252:03:127:5620:53
8:37
+0:57
30K
18.64 mi12:56:022:27:497:5624:37
7:55
-0:42
20M
20.00 mi13:06:382:38:257:5510:36
7:48
-0:07
21M
21.00 mi13:14:522:46:397:568:14
8:14
+0:26
35K
21.75 mi13:20:352:52:227:565:43
7:38
-0:36
23M
23.00 mi13:30:583:02:457:5710:23
8:18
+0:40
24M
24.00 mi13:39:273:11:147:588:29
8:29
+0:11
40K
24.85 mi13:46:353:18:227:597:08
8:21
-0:08
25.2M
25.20 mi13:49:313:21:187:592:56
8:30
+0:09
Finish
26.22 mi13:57:223:29:097:597:51
7:42
-0:48

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

7:38 /mi

Average Pace

7:59 /mi

Slowest Pace

8:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:56:51

85% of race

Time at Steady Pace

32:18

15% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:59 /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 mi10:52:3224:197:5024:19
7:50
#12632
10K
6.21 mi11:16:3048:177:4623:58
7:43
#12458
15K
9.32 mi11:41:121:12:597:5024:42
7:57
#12970
20K
12.43 mi12:05:181:37:057:4924:06
7:45
#12507
Half
13.11 mi12:10:321:42:197:485:14
7:40
#12460
25K
15.53 mi12:31:252:03:127:5620:53
8:37
#13311
30K
18.64 mi12:56:022:27:497:5624:37
7:55
#12726
20M
20.00 mi13:06:382:38:257:5510:36
7:48
#12384
21M
21.00 mi13:14:522:46:397:568:14
8:14
#12144
35K
21.75 mi13:20:352:52:227:565:43
7:38
#12033
23M
23.00 mi13:30:583:02:457:5710:23
8:18
#12016
24M
24.00 mi13:39:273:11:147:588:29
8:29
#12145
40K
24.85 mi13:46:353:18:227:597:08
8:21
#12132
25.2M
25.20 mi13:49:313:21:187:592:56
8:30
#12084
Finish
26.22 mi13:57:223:29:097:597:51
7:42
#12001
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi126323238323813998(Top 53%)4081(Top 36%)4081(Top 217%)
10K6.21 mi3.10 mi12458+1743137+1013137+10112389(Top 47%)3084(Top 27%)3084(Top 164%)
15K9.32 mi3.11 mi12970-5123440-3033440-30313998(Top 53%)4081(Top 36%)4081(Top 217%)
20K12.43 mi3.11 mi12507+4633205+2353205+23511391(Top 43%)2629(Top 23%)2629(Top 140%)
Half13.11 mi0.68 mi12460+473179+263179+2611718(Top 44%)2762(Top 24%)2762(Top 147%)
25K15.53 mi2.42 mi13311-8513691-5123691-51216877(Top 63%)5936(Top 52%)5936(Top 316%)
30K18.64 mi3.11 mi12726+5853388+3033388+30310336(Top 39%)2326(Top 20%)2326(Top 124%)
20M20.00 mi1.36 mi12384+3423206+1823206+1828907(Top 33%)1774(Top 16%)1774(Top 94%)
21M21.00 mi1.00 mi12144+2403093+1133093+1138842(Top 33%)1869(Top 16%)1869(Top 100%)
35K21.75 mi0.75 mi12033+1113047+463047+469619(Top 36%)2204(Top 19%)2204(Top 117%)
23M23.00 mi1.25 mi12016+173071-243071-2411860(Top 45%)3438(Top 30%)3438(Top 183%)
24M24.00 mi1.00 mi12145-1293158-873158-8714388(Top 54%)4882(Top 43%)4882(Top 260%)
40K24.85 mi0.85 mi12132+133176-183176-1812351(Top 46%)3851(Top 34%)3851(Top 205%)
25.2M25.20 mi0.35 mi12084+483157+193157+199665(Top 36%)2548(Top 22%)2548(Top 136%)
Finish26.22 mi1.02 mi12001+833127+303127+3010029(Top 38%)2716(Top 24%)2716(Top 145%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21stories
+97ft-345ft

Overall

13998

Females

4081

F40-44

4081

5K→10K

3.1 - 6.2 mi

Top 47%
×5stories
+79ft-138ft

Overall

12389

Females

3084

F40-44

3084

10K→15K

6.2 - 9.3 mi

Top 53%
×3stories
+67ft-78ft

Overall

13998

Females

4081

F40-44

4081

15K→20K

9.3 - 12.4 mi

Top 43%
×5stories
+106ft-86ft

Overall

11391

Females

2629

F40-44

2629

20K→Half

12.4 - 13.1 mi

Top 44%
×2stories
+19ft-37ft

Overall

11718

Females

2762

F40-44

2762

Half→25K

13.1 - 15.5 mi

Top 63%
×4stories
+66ft-88ft

Overall

16877

Females

5936

F40-44

5936

25K→30K

15.5 - 18.6 mi

Top 39%
×9stories
+181ft-148ft

Overall

10336

Females

2326

F40-44

2326

30K→20M

18.6 - 20.0 mi

Top 33%
×5stories
+64ft-50ft

Overall

8907

Females

1774

F40-44

1774

20M→21M

20.0 - 21.0 mi

Top 33%
×8stories
+106ft-24ft

Overall

8842

Females

1869

F40-44

1869

21M→35K

21.0 - 21.8 mi

Top 36%
×7stories
+17ft-86ft

Overall

9619

Females

2204

F40-44

2204

35K→23M

21.8 - 23.0 mi

Top 45%
×5stories
+23ft-63ft

Overall

11860

Females

3438

F40-44

3438

23M→24M

23.0 - 24.0 mi

Top 54%
×6stories
+12ft-82ft

Overall

14388

Females

4882

F40-44

4882

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

12351

Females

3851

F40-44

3851

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

9665

Females

2548

F40-44

2548

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2stories
+22ft-21ft

Overall

10029

Females

2716

F40-44

2716

Passing Analysis

Category:
Athletes Passed
2708
Passed By
2077
Net Change
+631
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12632
5K → 10K397223+174#12632#12458
10K → 15K59571-512#12458#12970
15K → 20K49128+463#12970#12507
20K → Half6316+47#12507#12460
Half → 25K21872-851#12460#13311
25K → 30K59712+585#13311#12726
30K → 20M3431+342#12726#12384
20M → 21M25010+240#12384#12144
21M → 35K1165+111#12144#12033
35K → 23M9578+17#12033#12016
23M → 24M29158-129#12016#12145
24M → 40K7461+13#12145#12132
40K → 25.2M535+48#12132#12084
25.2M → Finish12037+83#12084#12001
TOTALS27082077+631
📊

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