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BOSTON MARATHON 2023

Erica Shangraw

Bib: 11591•F

IL

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 43%
Gender (Female)
#0 / 11423
Top 24%
Division (F18-39)
#0 / 4884
Top 41%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:27
Rank: #10078
Start → 5K
23:27 | 7:33/mi
10K· 6.21 mi
46:45
Rank: #10264 (-186)
5K → 10K
23:18 | 7:30/mi
15K· 9.32 mi
1:11:19
Rank: #11373 (-1109)
10K → 15K
24:34 | 7:54/mi
20K· 12.43 mi
1:34:58
Rank: #11050 (+323)
15K → 20K
23:39 | 7:37/mi
Half· 13.11 mi
1:40:07
Rank: #11017 (+33)
20K → Half
5:09 | 7:33/mi
25K· 15.53 mi
1:58:54
Rank: #10942 (+75)
Half → 25K
18:47 | 7:45/mi
30K· 18.64 mi
2:24:14
Rank: #11068 (-126)
25K → 30K
25:20 | 8:09/mi
20M
2:35:43
Rank: #11239 (-171)
30K → 20M
11:29 | 8:27/mi
21M
2:44:42
Rank: #11354 (-115)
20M → 21M
8:59 | 8:59/mi
35K· 21.75 mi
2:50:36
Rank: #11346 (+8)
21M → 35K
5:54 | 7:53/mi
23M
3:00:57
Rank: #11363 (-17)
35K → 23M
10:21 | 8:16/mi
24M
3:09:08
Rank: #11418 (-55)
23M → 24M
8:11 | 8:11/mi
40K· 24.85 mi
3:16:23
Rank: #11498 (-80)
24M → 40K
7:15 | 8:29/mi
25.2M
3:19:35
Rank: #11530 (-32)
40K → 25.2M
3:12 | 9:17/mi
Finish· 26.22 mi
3:27:16
Rank: #11387 (+143)
25.2M → Finish
7:41 | 7:32/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:07
Pace7:38 /mi
2nd Half
Distance13.11 mi
Time1:47:09
Pace8:10 /mi
📊Positive Split: 7.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:0523:277:3323:27
7:33
-
10K
6.21 mi11:13:2346:457:3123:18
7:30
-0:03
15K
9.32 mi11:37:571:11:197:3924:34
7:54
+0:24
20K
12.43 mi12:01:361:34:587:3923:39
7:37
-0:17
Half
13.11 mi12:06:451:40:077:385:09
7:33
-0:04
25K
15.53 mi12:25:321:58:547:3918:47
7:45
+0:12
30K
18.64 mi12:50:522:24:147:4425:20
8:09
+0:24
20M
20.00 mi13:02:212:35:437:4711:29
8:27
+0:18
21M
21.00 mi13:11:202:44:427:518:59
8:59
+0:32
35K
21.75 mi13:17:142:50:367:515:54
7:53
-1:06
23M
23.00 mi13:27:353:00:577:5210:21
8:16
+0:23
24M
24.00 mi13:35:463:09:087:538:11
8:11
-0:05
40K
24.85 mi13:43:013:16:237:547:15
8:29
+0:18
25.2M
25.20 mi13:46:133:19:357:553:12
9:17
+0:48
Finish
26.22 mi13:53:543:27:167:557:41
7:32
-1:45

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

7:30 /mi

Average Pace

7:55 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:23:14

40% of race

Time at Steady Pace

1:14:35

36% of race

Time at Slower Pace

49:27

24% of race

Average Pace: 7:54 /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 mi10:50:0523:277:3323:27
7:33
#10078
10K
6.21 mi11:13:2346:457:3123:18
7:30
#10264
15K
9.32 mi11:37:571:11:197:3924:34
7:54
#11373
20K
12.43 mi12:01:361:34:587:3923:39
7:37
#11050
Half
13.11 mi12:06:451:40:077:385:09
7:33
#11017
25K
15.53 mi12:25:321:58:547:3918:47
7:45
#10942
30K
18.64 mi12:50:522:24:147:4425:20
8:09
#11068
20M
20.00 mi13:02:212:35:437:4711:29
8:27
#11239
21M
21.00 mi13:11:202:44:427:518:59
8:59
#11354
35K
21.75 mi13:17:142:50:367:515:54
7:53
#11346
23M
23.00 mi13:27:353:00:577:5210:21
8:16
#11363
24M
24.00 mi13:35:463:09:087:538:11
8:11
#11418
40K
24.85 mi13:43:013:16:237:547:15
8:29
#11498
25.2M
25.20 mi13:46:133:19:357:553:12
9:17
#11530
Finish
26.22 mi13:53:543:27:167:557:41
7:32
#11387
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi100781903190313619(Top 51%)3843(Top 34%)3843(Top 79%)
10K6.21 mi3.10 mi10264-1861958-551958-5510459(Top 39%)2036(Top 18%)2036(Top 42%)
15K9.32 mi3.11 mi11373-11092530-5722530-57213619(Top 51%)3843(Top 34%)3843(Top 79%)
20K12.43 mi3.11 mi11050+3232356+1742356+17410193(Top 38%)2003(Top 18%)2003(Top 41%)
Half13.11 mi0.68 mi11017+332339+172339+1710703(Top 40%)2241(Top 20%)2241(Top 46%)
25K15.53 mi2.42 mi10942+752319+202319+2010700(Top 40%)2342(Top 21%)2342(Top 48%)
30K18.64 mi3.11 mi11068-1262442-1232442-12312029(Top 45%)3197(Top 28%)3197(Top 65%)
20M20.00 mi1.36 mi11239-1712563-1212563-12113335(Top 50%)4026(Top 35%)4026(Top 82%)
21M21.00 mi1.00 mi11354-1152648-852648-8513320(Top 50%)4107(Top 36%)4107(Top 84%)
35K21.75 mi0.75 mi11346+82653-52653-511330(Top 43%)3037(Top 27%)3037(Top 62%)
23M23.00 mi1.25 mi11363-172697-442697-4411652(Top 44%)3326(Top 29%)3326(Top 68%)
24M24.00 mi1.00 mi11418-552745-482745-4812489(Top 47%)3844(Top 34%)3844(Top 79%)
40K24.85 mi0.85 mi11498-802813-682813-6813208(Top 50%)4306(Top 38%)4306(Top 88%)
25.2M25.20 mi0.35 mi11530-322835-222835-2214094(Top 53%)4778(Top 42%)4778(Top 98%)
Finish26.22 mi1.02 mi11387+1432786+492786+498882(Top 33%)2195(Top 19%)2195(Top 45%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21stories
+97ft-345ft

Overall

13619

Females

3843

F18-39

3843

5K→10K

3.1 - 6.2 mi

Top 39%
×5stories
+79ft-138ft

Overall

10459

Females

2036

F18-39

2036

10K→15K

6.2 - 9.3 mi

Top 51%
×3stories
+67ft-78ft

Overall

13619

Females

3843

F18-39

3843

15K→20K

9.3 - 12.4 mi

Top 38%
×5stories
+106ft-86ft

Overall

10193

Females

2003

F18-39

2003

20K→Half

12.4 - 13.1 mi

Top 40%
×2stories
+19ft-37ft

Overall

10703

Females

2241

F18-39

2241

Half→25K

13.1 - 15.5 mi

Top 40%
×4stories
+66ft-88ft

Overall

10700

Females

2342

F18-39

2342

25K→30K

15.5 - 18.6 mi

Top 45%
×9stories
+181ft-148ft

Overall

12029

Females

3197

F18-39

3197

30K→20M

18.6 - 20.0 mi

Top 50%
×5stories
+64ft-50ft

Overall

13335

Females

4026

F18-39

4026

20M→21M

20.0 - 21.0 mi

Top 50%
×8stories
+106ft-24ft

Overall

13320

Females

4107

F18-39

4107

21M→35K

21.0 - 21.8 mi

Top 43%
×7stories
+17ft-86ft

Overall

11330

Females

3037

F18-39

3037

35K→23M

21.8 - 23.0 mi

Top 44%
×5stories
+23ft-63ft

Overall

11652

Females

3326

F18-39

3326

23M→24M

23.0 - 24.0 mi

Top 47%
×6stories
+12ft-82ft

Overall

12489

Females

3844

F18-39

3844

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

13208

Females

4306

F18-39

4306

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14094

Females

4778

F18-39

4778

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2stories
+22ft-21ft

Overall

8882

Females

2195

F18-39

2195

Passing Analysis

Category:
Athletes Passed
1454*
Passed By
2763
Net Change
-1309
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10078
5K → 10K230*416-186#10078#10264
10K → 15K201129-1109#10264#11373
15K → 20K35330+323#11373#11050
20K → Half4613+33#11050#11017
Half → 25K15479+75#11017#10942
25K → 30K141267-126#10942#11068
30K → 20M47218-171#11068#11239
20M → 21M50165-115#11239#11354
21M → 35K6052+8#11354#11346
35K → 23M8097-17#11346#11363
23M → 24M46101-55#11363#11418
24M → 40K44124-80#11418#11498
40K → 25.2M2355-32#11498#11530
25.2M → Finish16017+143#11530#11387
TOTALS1454*2763-1309

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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