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BOSTON MARATHON 2023

Erin Shedd

Bib: 16165•F

TX

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 38%
Gender (Female)
#0 / 11423
Top 19%
Division (F18-39)
#0 / 4884
Top 34%
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
7:43/mi
23:58
↑ 97↓ 3451.5%
10K· 6.21 mi
7:30/mi
47:16
↑ 79↓ 1380.4%
15K· 9.32 mi
7:29/mi
1:10:30
↑ 67↓ 78
20K· 12.43 mi
7:38/mi
1:34:13
↑ 106↓ 860.1%
Half· 13.11 mi
7:31/mi
1:39:21
↑ 19↓ 370.5%
25K· 15.53 mi
7:39/mi
1:57:54
↑ 66↓ 880.2%
30K· 18.64 mi
7:57/mi
2:22:35
↑ 181↓ 1480.2%
20M
8:01/mi
2:33:29
↑ 64↓ 500.2%
21M
8:44/mi
2:42:13
↑ 106↓ 241.6%
35K· 21.75 mi
8:08/mi
2:48:18
↑ 17↓ 861.7%
23M
8:00/mi
2:58:19
↑ 23↓ 630.6%
24M
7:43/mi
3:06:02
↓ 821.3%
40K· 24.85 mi
7:45/mi
3:12:40
↓ 200.3%
25.2M
8:30/mi
3:15:36
↑ 13↓ 160.2%
Finish· 26.22 mi
7:39/mi
3:23:24
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:21
Pace7:35 /mi
2nd Half
Distance13.11 mi
Time1:44:03
Pace7:56 /mi
📊Positive Split: 4.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:1223:587:4323:58
7:43
-
10K
6.21 mi11:37:3047:167:3623:18
7:30
-0:13
15K
9.32 mi12:00:441:10:307:3423:14
7:29
-0:01
20K
12.43 mi12:24:271:34:137:3523:43
7:38
+0:09
Half
13.11 mi12:29:351:39:217:355:08
7:31
-0:07
25K
15.53 mi12:48:081:57:547:3518:33
7:39
+0:08
30K
18.64 mi13:12:492:22:357:3924:41
7:57
+0:18
20M
20.00 mi13:23:432:33:297:4010:54
8:01
+0:04
21M
21.00 mi13:32:272:42:137:438:44
8:44
+0:43
35K
21.75 mi13:38:322:48:187:446:05
8:08
-0:36
23M
23.00 mi13:48:332:58:197:4510:01
8:00
-0:08
24M
24.00 mi13:56:163:06:027:457:43
7:43
-0:17
40K
24.85 mi14:02:543:12:407:456:38
7:45
+0:02
25.2M
25.20 mi14:05:503:15:367:462:56
8:30
+0:45
Finish
26.22 mi14:13:383:23:247:467:48
7:39
-0:51

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

7:29 /mi

Average Pace

7:46 /mi

Slowest Pace

8:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:11:44

94% of race

Time at Steady Pace

11:40

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:45 /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 mi11:14:1223:587:4323:58
7:43
#11582
10K
6.21 mi11:37:3047:167:3623:18
7:30
#10977
15K
9.32 mi12:00:441:10:307:3423:14
7:29
#10613
20K
12.43 mi12:24:271:34:137:3523:43
7:38
#10538
Half
13.11 mi12:29:351:39:217:355:08
7:31
#10528
25K
15.53 mi12:48:081:57:547:3518:33
7:39
#10403
30K
18.64 mi13:12:492:22:357:3924:41
7:57
#10357
20M
20.00 mi13:23:432:33:297:4010:54
8:01
#10353
21M
21.00 mi13:32:272:42:137:438:44
8:44
#10426
35K
21.75 mi13:38:322:48:187:446:05
8:08
#10490
23M
23.00 mi13:48:332:58:197:4510:01
8:00
#10420
24M
24.00 mi13:56:163:06:027:457:43
7:43
#10353
40K
24.85 mi14:02:543:12:407:456:38
7:45
#10243
25.2M
25.20 mi14:05:503:15:367:462:56
8:30
#10222
Finish
26.22 mi14:13:383:23:247:467:48
7:39
#10168
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi115822628262810016(Top 38%)1851(Top 16%)1851(Top 38%)
10K6.21 mi3.10 mi10977+6052313+3152313+31510456(Top 39%)2033(Top 18%)2033(Top 42%)
15K9.32 mi3.11 mi10613+3642126+1872126+18710016(Top 38%)1851(Top 16%)1851(Top 38%)
20K12.43 mi3.11 mi10538+752091+352091+3510371(Top 39%)2080(Top 18%)2080(Top 43%)
Half13.11 mi0.68 mi10528+102081+102081+1010467(Top 39%)2122(Top 19%)2122(Top 43%)
25K15.53 mi2.42 mi10403+1252046+352046+359929(Top 37%)1975(Top 17%)1975(Top 40%)
30K18.64 mi3.11 mi10357+462080-342080-3410480(Top 39%)2378(Top 21%)2378(Top 49%)
20M20.00 mi1.36 mi10353+42094-142094-1410436(Top 39%)2444(Top 21%)2444(Top 50%)
21M21.00 mi1.00 mi10426-732163-692163-6911880(Top 45%)3327(Top 29%)3327(Top 68%)
35K21.75 mi0.75 mi10490-642210-472210-4713001(Top 49%)3987(Top 35%)3987(Top 82%)
23M23.00 mi1.25 mi10420+702207+32207+39755(Top 37%)2382(Top 21%)2382(Top 49%)
24M24.00 mi1.00 mi10353+672198+92198+99219(Top 35%)2207(Top 19%)2207(Top 45%)
40K24.85 mi0.85 mi10243+1102170+282170+288421(Top 32%)1911(Top 17%)1911(Top 39%)
25.2M25.20 mi0.35 mi10222+212173-32173-39628(Top 36%)2511(Top 22%)2511(Top 51%)
Finish26.22 mi1.02 mi10168+542180-72180-79676(Top 36%)2555(Top 22%)2555(Top 52%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21story building
+97ft-345ft

Overall

10016

Females

1851

F18-39

1851

5K→10K

3.1 - 6.2 mi

Top 39%
×5story building
+79ft-138ft

Overall

10456

Females

2033

F18-39

2033

10K→15K

6.2 - 9.3 mi

Top 38%
×3story building
+67ft-78ft

Overall

10016

Females

1851

F18-39

1851

15K→20K

9.3 - 12.4 mi

Top 39%
×5story building
+106ft-86ft

Overall

10371

Females

2080

F18-39

2080

20K→Half

12.4 - 13.1 mi

Top 39%
×2story building
+19ft-37ft

Overall

10467

Females

2122

F18-39

2122

Half→25K

13.1 - 15.5 mi

Top 37%
×4story building
+66ft-88ft

Overall

9929

Females

1975

F18-39

1975

25K→30K

15.5 - 18.6 mi

Top 39%
×9story building
+181ft-148ft

Overall

10480

Females

2378

F18-39

2378

30K→20M

18.6 - 20.0 mi

Top 39%
×5story building
+64ft-50ft

Overall

10436

Females

2444

F18-39

2444

20M→21M

20.0 - 21.0 mi

Top 45%
×8story building
+106ft-24ft

Overall

11880

Females

3327

F18-39

3327

21M→35K

21.0 - 21.8 mi

Top 49%
×7story building
+17ft-86ft

Overall

13001

Females

3987

F18-39

3987

35K→23M

21.8 - 23.0 mi

Top 37%
×5story building
+23ft-63ft

Overall

9755

Females

2382

F18-39

2382

23M→24M

23.0 - 24.0 mi

Top 35%
×6story building
+12ft-82ft

Overall

9219

Females

2207

F18-39

2207

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

8421

Females

1911

F18-39

1911

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

9628

Females

2511

F18-39

2511

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2story building
+22ft-21ft

Overall

9676

Females

2555

F18-39

2555

Passing Analysis

Category:
Athletes Passed
2370*
Passed By
956
Net Change
+1414
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11582
5K → 10K69994+605#11582#10977
10K → 15K41450+364#10977#10613
15K → 20K197122+75#10613#10538
20K → Half3626+10#10538#10528
Half → 25K19873+125#10528#10403
25K → 30K170124+46#10403#10357
30K → 20M72*68+4#10357#10353
20M → 21M73146-73#10353#10426
21M → 35K3094-64#10426#10490
35K → 23M11343+70#10490#10420
23M → 24M9528+67#10420#10353
24M → 40K12919+110#10353#10243
40K → 25.2M47*26+21#10243#10222
25.2M → Finish9743+54#10222#10168
TOTALS2370*956+1414

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

📊

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