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BOSTON MARATHON 2023

Amanda Davis Simpfenderfer

Bib: 18447•F

VA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 45%
Gender (Female)
#0 / 11423
Top 28%
Division (F18-39)
#0 / 4884
Top 46%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:47
Rank: #13859
Start → 5K
24:47 | 7:59/mi
10K· 6.21 mi
48:51
Rank: #13290 (+569)
5K → 10K
24:04 | 7:45/mi
15K· 9.32 mi
1:13:00
Rank: #12981 (+309)
10K → 15K
24:09 | 7:46/mi
20K· 12.43 mi
1:37:04
Rank: #12492 (+489)
15K → 20K
24:04 | 7:45/mi
Half· 13.11 mi
1:42:20
Rank: #12468 (+24)
20K → Half
5:16 | 7:43/mi
25K· 15.53 mi
2:01:13
Rank: #12208 (+260)
Half → 25K
18:53 | 7:47/mi
30K· 18.64 mi
2:26:33
Rank: #12139 (+69)
25K → 30K
25:20 | 8:09/mi
20M
2:37:49
Rank: #12139
30K → 20M
11:16 | 8:17/mi
21M
2:46:40
Rank: #12152 (-13)
20M → 21M
8:51 | 8:51/mi
35K· 21.75 mi
2:52:39
Rank: #12147 (+5)
21M → 35K
5:59 | 8:00/mi
23M
3:03:07
Rank: #12149 (-2)
35K → 23M
10:28 | 8:22/mi
24M
3:11:16
Rank: #12162 (-13)
23M → 24M
8:09 | 8:09/mi
40K· 24.85 mi
3:18:22
Rank: #12134 (+28)
24M → 40K
7:06 | 8:18/mi
25.2M
3:21:22
Rank: #12104 (+30)
40K → 25.2M
3:00 | 8:42/mi
Finish· 26.22 mi
3:29:29
Rank: #12095 (+9)
25.2M → Finish
8:07 | 7:58/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:20
Pace7:48 /mi
2nd Half
Distance13.11 mi
Time1:47:09
Pace8:10 /mi
📊Positive Split: 4.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:4724:477:5924:47
7:59
-
10K
6.21 mi11:39:5148:517:5224:04
7:45
-0:14
15K
9.32 mi12:04:001:13:007:5024:09
7:46
+0:01
20K
12.43 mi12:28:041:37:047:4924:04
7:45
-0:01
Half
13.11 mi12:33:201:42:207:485:16
7:43
-0:02
25K
15.53 mi12:52:132:01:137:4818:53
7:47
+0:04
30K
18.64 mi13:17:332:26:337:5225:20
8:09
+0:22
20M
20.00 mi13:28:492:37:497:5311:16
8:17
+0:08
21M
21.00 mi13:37:402:46:407:568:51
8:51
+0:34
35K
21.75 mi13:43:392:52:397:565:59
8:00
-0:51
23M
23.00 mi13:54:073:03:077:5810:28
8:22
+0:22
24M
24.00 mi14:02:163:11:167:588:09
8:09
-0:13
40K
24.85 mi14:09:223:18:227:597:06
8:18
+0:09
25.2M
25.20 mi14:12:223:21:227:593:00
8:42
+0:24
Finish
26.22 mi14:20:293:29:298:008:07
7:58
-0:44

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

7:43 /mi

Average Pace

8:00 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:17:38

94% of race

Time at Steady Pace

11:51

6% 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 mi11:15:4724:477:5924:47
7:59
#13859
10K
6.21 mi11:39:5148:517:5224:04
7:45
#13290
15K
9.32 mi12:04:001:13:007:5024:09
7:46
#12981
20K
12.43 mi12:28:041:37:047:4924:04
7:45
#12492
Half
13.11 mi12:33:201:42:207:485:16
7:43
#12468
25K
15.53 mi12:52:132:01:137:4818:53
7:47
#12208
30K
18.64 mi13:17:332:26:337:5225:20
8:09
#12139
20M
20.00 mi13:28:492:37:497:5311:16
8:17
#12139
21M
21.00 mi13:37:402:46:407:568:51
8:51
#12152
35K
21.75 mi13:43:392:52:397:565:59
8:00
#12147
23M
23.00 mi13:54:073:03:077:5810:28
8:22
#12149
24M
24.00 mi14:02:163:11:167:588:09
8:09
#12162
40K
24.85 mi14:09:223:18:227:597:06
8:18
#12134
25.2M
25.20 mi14:12:223:21:227:593:00
8:42
#12104
Finish
26.22 mi14:20:293:29:298:008:07
7:58
#12095
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi138593935393512507(Top 47%)3190(Top 28%)3190(Top 65%)
10K6.21 mi3.10 mi13290+5693621+3143621+31412658(Top 48%)3234(Top 28%)3234(Top 66%)
15K9.32 mi3.11 mi12981+3093446+1753446+17512507(Top 47%)3190(Top 28%)3190(Top 65%)
20K12.43 mi3.11 mi12492+4893197+2493197+24911289(Top 42%)2569(Top 22%)2569(Top 53%)
Half13.11 mi0.68 mi12468+243183+143183+1412108(Top 45%)2986(Top 26%)2986(Top 61%)
25K15.53 mi2.42 mi12208+2603060+1233060+12311025(Top 41%)2502(Top 22%)2502(Top 51%)
30K18.64 mi3.11 mi12139+693055+53055+512035(Top 45%)3203(Top 28%)3203(Top 66%)
20M20.00 mi1.36 mi121393076-213076-2112315(Top 46%)3466(Top 30%)3466(Top 71%)
21M21.00 mi1.00 mi12152-133098-223098-2212556(Top 47%)3710(Top 32%)3710(Top 76%)
35K21.75 mi0.75 mi12147+53116-183116-1812136(Top 46%)3499(Top 31%)3499(Top 72%)
23M23.00 mi1.25 mi12149-23138-223138-2212318(Top 46%)3696(Top 32%)3696(Top 76%)
24M24.00 mi1.00 mi12162-133169-313169-3112275(Top 46%)3735(Top 33%)3735(Top 76%)
40K24.85 mi0.85 mi12134+283178-93178-912094(Top 45%)3719(Top 33%)3719(Top 76%)
25.2M25.20 mi0.35 mi12104+303167+113167+1110818(Top 41%)3092(Top 27%)3092(Top 63%)
Finish26.22 mi1.02 mi12095+93177-103177-1011886(Top 45%)3643(Top 32%)3643(Top 75%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21stories
+97ft-345ft

Overall

12507

Females

3190

F18-39

3190

5K→10K

3.1 - 6.2 mi

Top 48%
×5stories
+79ft-138ft

Overall

12658

Females

3234

F18-39

3234

10K→15K

6.2 - 9.3 mi

Top 47%
×3stories
+67ft-78ft

Overall

12507

Females

3190

F18-39

3190

15K→20K

9.3 - 12.4 mi

Top 42%
×5stories
+106ft-86ft

Overall

11289

Females

2569

F18-39

2569

20K→Half

12.4 - 13.1 mi

Top 45%
×2stories
+19ft-37ft

Overall

12108

Females

2986

F18-39

2986

Half→25K

13.1 - 15.5 mi

Top 41%
×4stories
+66ft-88ft

Overall

11025

Females

2502

F18-39

2502

25K→30K

15.5 - 18.6 mi

Top 45%
×9stories
+181ft-148ft

Overall

12035

Females

3203

F18-39

3203

30K→20M

18.6 - 20.0 mi

Top 46%
×5stories
+64ft-50ft

Overall

12315

Females

3466

F18-39

3466

20M→21M

20.0 - 21.0 mi

Top 47%
×8stories
+106ft-24ft

Overall

12556

Females

3710

F18-39

3710

21M→35K

21.0 - 21.8 mi

Top 46%
×7stories
+17ft-86ft

Overall

12136

Females

3499

F18-39

3499

35K→23M

21.8 - 23.0 mi

Top 46%
×5stories
+23ft-63ft

Overall

12318

Females

3696

F18-39

3696

23M→24M

23.0 - 24.0 mi

Top 46%
×6stories
+12ft-82ft

Overall

12275

Females

3735

F18-39

3735

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

12094

Females

3719

F18-39

3719

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

10818

Females

3092

F18-39

3092

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2stories
+22ft-21ft

Overall

11886

Females

3643

F18-39

3643

Passing Analysis

Category:
Athletes Passed
2719
Passed By
955
Net Change
+1764
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13859
5K → 10K678109+569#13859#13290
10K → 15K38576+309#13290#12981
15K → 20K51223+489#12981#12492
20K → Half4925+24#12492#12468
Half → 25K27818+260#12468#12208
25K → 30K236167+69#12208#12139
30K → 20M1051050#12139#12139
20M → 21M8497-13#12139#12152
21M → 35K4843+5#12152#12147
35K → 23M8991-2#12147#12149
23M → 24M5871-13#12149#12162
24M → 40K7951+28#12162#12134
40K → 25.2M4212+30#12134#12104
25.2M → Finish7667+9#12104#12095
TOTALS2719955+1764
📊

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