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BOSTON MARATHON 2023

Erin Jakubowitch

Bib: 17229•F

DE

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 46%
Gender (Female)
#0 / 11423
Top 29%
Masters (Masters Women)
#0 / 6539
Top 15%
Division (F40-44)
#0 / 1878
Top 30%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:29
Rank: #13091
Start → 5K
24:29 | 7:53/mi
10K· 6.21 mi
48:33
Rank: #12828 (+263)
5K → 10K
24:04 | 7:45/mi
15K· 9.32 mi
1:12:50
Rank: #12824 (+4)
10K → 15K
24:17 | 7:49/mi
20K· 12.43 mi
1:37:32
Rank: #12837 (-13)
15K → 20K
24:42 | 7:57/mi
Half· 13.11 mi
1:42:54
Rank: #12857 (-20)
20K → Half
5:22 | 7:52/mi
25K· 15.53 mi
2:02:25
Rank: #12873 (-16)
Half → 25K
19:31 | 8:03/mi
30K· 18.64 mi
2:27:49
Rank: #12727 (+146)
25K → 30K
25:24 | 8:11/mi
20M
2:38:53
Rank: #12588 (+139)
30K → 20M
11:04 | 8:09/mi
21M
2:47:41
Rank: #12538 (+50)
20M → 21M
8:48 | 8:48/mi
35K· 21.75 mi
2:53:32
Rank: #12461 (+77)
21M → 35K
5:51 | 7:49/mi
23M
3:03:50
Rank: #12396 (+65)
35K → 23M
10:18 | 8:14/mi
24M
3:11:51
Rank: #12337 (+59)
23M → 24M
8:01 | 8:01/mi
40K· 24.85 mi
3:18:57
Rank: #12315 (+22)
24M → 40K
7:06 | 8:18/mi
25.2M
3:22:00
Rank: #12309 (+6)
40K → 25.2M
3:03 | 8:51/mi
Finish· 26.22 mi
3:30:07
Rank: #12298 (+11)
25.2M → Finish
8:07 | 7:58/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:54
Pace7:51 /mi
2nd Half
Distance13.11 mi
Time1:47:13
Pace8:11 /mi
📊Positive Split: 4.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:5024:297:5324:29
7:53
-
10K
6.21 mi11:39:5448:337:4924:04
7:45
-0:08
15K
9.32 mi12:04:111:12:507:4924:17
7:49
+0:04
20K
12.43 mi12:28:531:37:327:5124:42
7:57
+0:08
Half
13.11 mi12:34:151:42:547:515:22
7:52
-0:05
25K
15.53 mi12:53:462:02:257:5319:31
8:03
+0:11
30K
18.64 mi13:19:102:27:497:5625:24
8:11
+0:08
20M
20.00 mi13:30:142:38:537:5711:04
8:09
-0:02
21M
21.00 mi13:39:022:47:417:598:48
8:48
+0:39
35K
21.75 mi13:44:532:53:327:595:51
7:49
-0:59
23M
23.00 mi13:55:113:03:508:0010:18
8:14
+0:25
24M
24.00 mi14:03:123:11:518:008:01
8:01
-0:13
40K
24.85 mi14:10:183:18:578:007:06
8:18
+0:17
25.2M
25.20 mi14:13:213:22:008:013:03
8:51
+0:33
Finish
26.22 mi14:21:283:30:078:018:07
7:58
-0:53

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

7:45 /mi

Average Pace

8:01 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:18:16

94% of race

Time at Steady Pace

11:51

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:01 /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 mi11:15:5024:297:5324:29
7:53
#13091
10K
6.21 mi11:39:5448:337:4924:04
7:45
#12828
15K
9.32 mi12:04:111:12:507:4924:17
7:49
#12824
20K
12.43 mi12:28:531:37:327:5124:42
7:57
#12837
Half
13.11 mi12:34:151:42:547:515:22
7:52
#12857
25K
15.53 mi12:53:462:02:257:5319:31
8:03
#12873
30K
18.64 mi13:19:102:27:497:5625:24
8:11
#12727
20M
20.00 mi13:30:142:38:537:5711:04
8:09
#12588
21M
21.00 mi13:39:022:47:417:598:48
8:48
#12538
35K
21.75 mi13:44:532:53:327:595:51
7:49
#12461
23M
23.00 mi13:55:113:03:508:0010:18
8:14
#12396
24M
24.00 mi14:03:123:11:518:008:01
8:01
#12337
40K
24.85 mi14:10:183:18:578:007:06
8:18
#12315
25.2M
25.20 mi14:13:213:22:008:013:03
8:51
#12309
Finish
26.22 mi14:21:283:30:078:018:07
7:58
#12298
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi130913494349412882(Top 48%)3400(Top 30%)3400(Top 181%)
10K6.21 mi3.10 mi12828+2633334+1603334+16012660(Top 48%)3236(Top 28%)3236(Top 172%)
15K9.32 mi3.11 mi12824+43350-163350-1612882(Top 48%)3400(Top 30%)3400(Top 181%)
20K12.43 mi3.11 mi12837-133385-353385-3513037(Top 49%)3568(Top 31%)3568(Top 190%)
Half13.11 mi0.68 mi12857-203397-123397-1213333(Top 50%)3682(Top 32%)3682(Top 196%)
25K15.53 mi2.42 mi12873-163441-443441-4413148(Top 49%)3709(Top 32%)3709(Top 197%)
30K18.64 mi3.11 mi12727+1463389+523389+5212169(Top 46%)3283(Top 29%)3283(Top 175%)
20M20.00 mi1.36 mi12588+1393325+643325+6411331(Top 43%)2905(Top 25%)2905(Top 155%)
21M21.00 mi1.00 mi12538+503317+83317+812271(Top 46%)3548(Top 31%)3548(Top 189%)
35K21.75 mi0.75 mi12461+773291+263291+2610856(Top 41%)2808(Top 25%)2808(Top 150%)
23M23.00 mi1.25 mi12396+653275+163275+1611396(Top 43%)3211(Top 28%)3211(Top 171%)
24M24.00 mi1.00 mi12337+593260+153260+1511389(Top 43%)3284(Top 29%)3284(Top 175%)
40K24.85 mi0.85 mi12315+223266-63266-612098(Top 45%)3723(Top 33%)3723(Top 198%)
25.2M25.20 mi0.35 mi12309+63274-83274-811638(Top 44%)3534(Top 31%)3534(Top 188%)
Finish26.22 mi1.02 mi12298+113289-153289-1511890(Top 45%)3647(Top 32%)3647(Top 194%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21stories
+97ft-345ft

Overall

12882

Females

3400

F40-44

3400

5K→10K

3.1 - 6.2 mi

Top 48%
×5stories
+79ft-138ft

Overall

12660

Females

3236

F40-44

3236

10K→15K

6.2 - 9.3 mi

Top 48%
×3stories
+67ft-78ft

Overall

12882

Females

3400

F40-44

3400

15K→20K

9.3 - 12.4 mi

Top 49%
×5stories
+106ft-86ft

Overall

13037

Females

3568

F40-44

3568

20K→Half

12.4 - 13.1 mi

Top 50%
×2stories
+19ft-37ft

Overall

13333

Females

3682

F40-44

3682

Half→25K

13.1 - 15.5 mi

Top 49%
×4stories
+66ft-88ft

Overall

13148

Females

3709

F40-44

3709

25K→30K

15.5 - 18.6 mi

Top 46%
×9stories
+181ft-148ft

Overall

12169

Females

3283

F40-44

3283

30K→20M

18.6 - 20.0 mi

Top 43%
×5stories
+64ft-50ft

Overall

11331

Females

2905

F40-44

2905

20M→21M

20.0 - 21.0 mi

Top 46%
×8stories
+106ft-24ft

Overall

12271

Females

3548

F40-44

3548

21M→35K

21.0 - 21.8 mi

Top 41%
×7stories
+17ft-86ft

Overall

10856

Females

2808

F40-44

2808

35K→23M

21.8 - 23.0 mi

Top 43%
×5stories
+23ft-63ft

Overall

11396

Females

3211

F40-44

3211

23M→24M

23.0 - 24.0 mi

Top 43%
×6stories
+12ft-82ft

Overall

11389

Females

3284

F40-44

3284

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

12098

Females

3723

F40-44

3723

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

11638

Females

3534

F40-44

3534

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2stories
+22ft-21ft

Overall

11890

Females

3647

F40-44

3647

Passing Analysis

Category:
Athletes Passed
2067
Passed By
1274
Net Change
+793
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13091
5K → 10K466203+263#13091#12828
10K → 15K208204+4#12828#12824
15K → 20K186199-13#12824#12837
20K → Half3050-20#12837#12857
Half → 25K142158-16#12857#12873
25K → 30K257111+146#12873#12727
30K → 20M17536+139#12727#12588
20M → 21M11969+50#12588#12538
21M → 35K9215+77#12538#12461
35K → 23M11550+65#12461#12396
23M → 24M9132+59#12396#12337
24M → 40K7250+22#12337#12315
40K → 25.2M2822+6#12315#12309
25.2M → Finish8675+11#12309#12298
TOTALS20671274+793
📊

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