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BOSTON MARATHON 2023

Amanda Shadduck

Bib: 17861•F

MN

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:39
Rank: #15883
Start → 5K
8:15/mi
25:39 split
10K· 6.21 mi
51:20
Rank: #16257 (-374)
5K → 10K
8:16/mi
25:41 split
15K· 9.32 mi
1:17:13
Rank: #16406 (-149)
10K → 15K
8:20/mi
25:53 split
20K· 12.43 mi
1:43:23
Rank: #16421 (-15)
15K → 20K
8:25/mi
26:10 split
Half· 13.11 mi
1:49:05
Rank: #16447 (-26)
20K → Half
8:21/mi
5:42 split
25K· 15.53 mi
2:09:30
Rank: #16303 (+144)
Half → 25K
8:25/mi
20:25 split
30K· 18.64 mi
2:36:10
Rank: #16004 (+299)
25K → 30K
8:35/mi
26:40 split
20M
2:47:53
Rank: #15860 (+144)
30K → 20M
8:37/mi
11:43 split
21M
2:56:46
Rank: #15650 (+210)
20M → 21M
8:53/mi
8:53 split
35K· 21.75 mi
3:03:00
Rank: #15591 (+59)
21M → 35K
8:20/mi
6:14 split
23M
3:13:44
Rank: #15454 (+137)
35K → 23M
8:34/mi
10:44 split
24M
3:22:05
Rank: #15369 (+85)
23M → 24M
8:21/mi
8:21 split
40K· 24.85 mi
3:29:12
Rank: #15228 (+141)
24M → 40K
8:19/mi
7:07 split
25.2M
3:32:15
Rank: #15148 (+80)
40K → 25.2M
8:51/mi
3:03 split
Finish· 26.22 mi
3:40:17
Rank: #15015 (+133)
25.2M → Finish
7:53/mi
8:02 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:05
Pace8:19 /mi
2nd Half
Distance13.11 mi
Time1:51:12
Pace8:29 /mi
📊Positive Split: 1.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:2625:398:1525:39
8:15
-
10K
6.21 mi11:42:0751:208:1625:41
8:16
+0:01
15K
9.32 mi12:08:001:17:138:1725:53
8:20
+0:04
20K
12.43 mi12:34:101:43:238:1926:10
8:25
+0:05
Half
13.11 mi12:39:521:49:058:195:42
8:21
-0:04
25K
15.53 mi13:00:172:09:308:2020:25
8:25
+0:04
30K
18.64 mi13:26:572:36:108:2326:40
8:35
+0:10
20M
20.00 mi13:38:402:47:538:2411:43
8:37
+0:02
21M
21.00 mi13:47:332:56:468:258:53
8:53
+0:16
35K
21.75 mi13:53:473:03:008:256:14
8:20
-0:33
23M
23.00 mi14:04:313:13:448:2510:44
8:34
+0:14
24M
24.00 mi14:12:523:22:058:258:21
8:21
-0:13
40K
24.85 mi14:19:593:29:128:257:07
8:19
-0:02
25.2M
25.20 mi14:23:023:32:158:253:03
8:51
+0:32
Finish
26.22 mi14:31:043:40:178:248:02
7:53
-0:58

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

7:53 /mi

Average Pace

8:24 /mi

Slowest Pace

8:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:28:21

95% of race

Time at Steady Pace

11:56

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:24 /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 mi11:16:2625:398:1525:39
8:15
#15883
10K
6.21 mi11:42:0751:208:1625:41
8:16
#16257
15K
9.32 mi12:08:001:17:138:1725:53
8:20
#16406
20K
12.43 mi12:34:101:43:238:1926:10
8:25
#16421
Half
13.11 mi12:39:521:49:058:195:42
8:21
#16447
25K
15.53 mi13:00:172:09:308:2020:25
8:25
#16303
30K
18.64 mi13:26:572:36:108:2326:40
8:35
#16004
20M
20.00 mi13:38:402:47:538:2411:43
8:37
#15860
21M
21.00 mi13:47:332:56:468:258:53
8:53
#15650
35K
21.75 mi13:53:473:03:008:256:14
8:20
#15591
23M
23.00 mi14:04:313:13:448:2510:44
8:34
#15454
24M
24.00 mi14:12:523:22:058:258:21
8:21
#15369
40K
24.85 mi14:19:593:29:128:257:07
8:19
#15228
25.2M
25.20 mi14:23:023:32:158:253:03
8:51
#15148
Finish
26.22 mi14:31:043:40:178:248:02
7:53
#15015
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi158835207520716755(Top 63%)5767(Top 50%)5767(Top 118%)
10K6.21 mi3.10 mi16257-3745433-2265433-22616716(Top 63%)5705(Top 50%)5705(Top 117%)
15K9.32 mi3.11 mi16406-1495533-1005533-10016755(Top 63%)5767(Top 50%)5767(Top 118%)
20K12.43 mi3.11 mi16421-155562-295562-2916395(Top 62%)5590(Top 49%)5590(Top 114%)
Half13.11 mi0.68 mi16447-265583-215583-2116935(Top 64%)5877(Top 51%)5877(Top 120%)
25K15.53 mi2.42 mi16303+1445513+705513+7015733(Top 59%)5281(Top 46%)5281(Top 108%)
30K18.64 mi3.11 mi16004+2995379+1345379+13414835(Top 56%)4840(Top 42%)4840(Top 99%)
20M20.00 mi1.36 mi15860+1445319+605319+6014450(Top 54%)4684(Top 41%)4684(Top 96%)
21M21.00 mi1.00 mi15650+2105211+1085211+10812805(Top 48%)3853(Top 34%)3853(Top 79%)
35K21.75 mi0.75 mi15591+595193+185193+1814370(Top 54%)4784(Top 42%)4784(Top 98%)
23M23.00 mi1.25 mi15454+1375134+595134+5913698(Top 51%)4454(Top 39%)4454(Top 91%)
24M24.00 mi1.00 mi15369+855087+475087+4713590(Top 51%)4458(Top 39%)4458(Top 91%)
40K24.85 mi0.85 mi15228+1415011+765011+7612273(Top 46%)3828(Top 34%)3828(Top 78%)
25.2M25.20 mi0.35 mi15148+804978+334978+3311748(Top 44%)3642(Top 32%)3642(Top 75%)
Finish26.22 mi1.02 mi15015+1334917+614917+6111346(Top 43%)3384(Top 30%)3384(Top 69%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21story building
+97ft-345ft

Overall

16755

Females

5767

F18-39

5767

5K→10K

3.1 - 6.2 mi

Top 63%
×5story building
+79ft-138ft

Overall

16716

Females

5705

F18-39

5705

10K→15K

6.2 - 9.3 mi

Top 63%
×3story building
+67ft-78ft

Overall

16755

Females

5767

F18-39

5767

15K→20K

9.3 - 12.4 mi

Top 62%
×5story building
+106ft-86ft

Overall

16395

Females

5590

F18-39

5590

20K→Half

12.4 - 13.1 mi

Top 64%
×2story building
+19ft-37ft

Overall

16935

Females

5877

F18-39

5877

Half→25K

13.1 - 15.5 mi

Top 59%
×4story building
+66ft-88ft

Overall

15733

Females

5281

F18-39

5281

25K→30K

15.5 - 18.6 mi

Top 56%
×9story building
+181ft-148ft

Overall

14835

Females

4840

F18-39

4840

30K→20M

18.6 - 20.0 mi

Top 54%
×5story building
+64ft-50ft

Overall

14450

Females

4684

F18-39

4684

20M→21M

20.0 - 21.0 mi

Top 48%
×8story building
+106ft-24ft

Overall

12805

Females

3853

F18-39

3853

21M→35K

21.0 - 21.8 mi

Top 54%
×7story building
+17ft-86ft

Overall

14370

Females

4784

F18-39

4784

35K→23M

21.8 - 23.0 mi

Top 51%
×5story building
+23ft-63ft

Overall

13698

Females

4454

F18-39

4454

23M→24M

23.0 - 24.0 mi

Top 51%
×6story building
+12ft-82ft

Overall

13590

Females

4458

F18-39

4458

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

12273

Females

3828

F18-39

3828

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

11748

Females

3642

F18-39

3642

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2story building
+22ft-21ft

Overall

11346

Females

3384

F18-39

3384

Passing Analysis

Category:
Athletes Passed
2135
Passed By
1267
Net Change
+868
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15883
5K → 10K153527-374#15883#16257
10K → 15K136285-149#16257#16406
15K → 20K163178-15#16406#16421
20K → Half2248-26#16421#16447
Half → 25K21470+144#16447#16303
25K → 30K34243+299#16303#16004
30K → 20M17127+144#16004#15860
20M → 21M2188+210#15860#15650
21M → 35K7516+59#15650#15591
35K → 23M15619+137#15591#15454
23M → 24M10823+85#15454#15369
24M → 40K1509+141#15369#15228
40K → 25.2M877+80#15228#15148
25.2M → Finish1407+133#15148#15015
TOTALS21351267+868
📊

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