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BOSTON MARATHON 2023

Stephanie Pesterfield

Bib: 14798•F

TN

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0:00
0:00
/ mi
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Overall
#0 / 26622
Top 26%
Gender (Female)
#0 / 11423
Top 8%
Age Group (F18-39)
#0 / 4884
Top 15%
Race Day Weather
49°/39°F
light intensity drizzle

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
23:35
Rank: #10454
Start → 5K
23:35 | 7:35/mi
10K· 6.21 mi
46:09
Rank: #9394 (+1060)
5K → 10K
22:34 | 7:16/mi
15K· 9.32 mi
1:08:13
Rank: #8606 (+788)
10K → 15K
22:04 | 7:06/mi
20K· 12.43 mi
1:30:19
Rank: #8022 (+584)
15K → 20K
22:06 | 7:07/mi
Half· 13.11 mi
1:35:11
Rank: #7991 (+31)
20K → Half
4:52 | 7:08/mi
25K· 15.53 mi
1:52:30
Rank: #7672 (+319)
Half → 25K
17:19 | 7:09/mi
30K· 18.64 mi
2:15:16
Rank: #7340 (+332)
25K → 30K
22:46 | 7:20/mi
20M
2:25:22
Rank: #7246 (+94)
30K → 20M
10:06 | 7:26/mi
21M
2:33:14
Rank: #7161 (+85)
20M → 21M
7:52 | 7:52/mi
35K· 21.75 mi
2:38:44
Rank: #7165 (-4)
21M → 35K
5:30 | 7:21/mi
23M
2:48:18
Rank: #7134 (+31)
35K → 23M
9:34 | 7:38/mi
24M
2:55:47
Rank: #7117 (+17)
23M → 24M
7:29 | 7:29/mi
40K· 24.85 mi
3:02:20
Rank: #7107 (+10)
24M → 40K
6:33 | 7:40/mi
25.2M
3:05:04
Rank: #7060 (+47)
40K → 25.2M
2:44 | 7:56/mi
Finish· 26.22 mi
3:12:22
Rank: #6983 (+77)
25.2M → Finish
7:18 | 7:10/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.11 mi
Time1:35:11
Pace7:16 /mi
2nd Half
Distance13.11 mi
Time1:37:11
Pace7:25 /mi
📊Positive Split: 2.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:5023:357:3523:35
7:35
-
10K
6.21 mi11:15:2446:097:2622:34
7:16
-0:19
15K
9.32 mi11:37:281:08:137:1922:04
7:06
-0:10
20K
12.43 mi11:59:341:30:197:1622:06
7:07
+0:01
Half
13.11 mi12:04:261:35:117:164:52
7:08
+0:01
25K
15.53 mi12:21:451:52:307:1517:19
7:09
+0:01
30K
18.64 mi12:44:312:15:167:1522:46
7:20
+0:11
20M
20.00 mi12:54:372:25:227:1610:06
7:26
+0:06
21M
21.00 mi13:02:292:33:147:187:52
7:52
+0:26
35K
21.75 mi13:07:592:38:447:185:30
7:21
-0:31
23M
23.00 mi13:17:332:48:187:199:34
7:38
+0:17
24M
24.00 mi13:25:022:55:477:197:29
7:29
-0:09
40K
24.85 mi13:31:353:02:207:206:33
7:40
+0:11
25.2M
25.20 mi13:34:193:05:047:212:44
7:56
+0:16
Finish
26.22 mi13:41:373:12:227:217:18
7:10
-0:46

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

7:06 /mi

Average Pace

7:21 /mi

Slowest Pace

7:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

3:01:46

94% of race

Time at Steady Pace

10:36

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:20 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:52:5023:357:3523:35
7:35
#10454
10K
6.21 mi11:15:2446:097:2622:34
7:16
#9394
15K
9.32 mi11:37:281:08:137:1922:04
7:06
#8606
20K
12.43 mi11:59:341:30:197:1622:06
7:07
#8022
Half
13.11 mi12:04:261:35:117:164:52
7:08
#7991
25K
15.53 mi12:21:451:52:307:1517:19
7:09
#7672
30K
18.64 mi12:44:312:15:167:1522:46
7:20
#7340
20M
20.00 mi12:54:372:25:227:1610:06
7:26
#7246
21M
21.00 mi13:02:292:33:147:187:52
7:52
#7161
35K
21.75 mi13:07:592:38:447:185:30
7:21
#7165
23M
23.00 mi13:17:332:48:187:199:34
7:38
#7134
24M
24.00 mi13:25:022:55:477:197:29
7:29
#7117
40K
24.85 mi13:31:353:02:207:206:33
7:40
#7107
25.2M
25.20 mi13:34:193:05:047:212:44
7:56
#7060
Finish
26.22 mi13:41:373:12:227:217:18
7:10
#6983
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi10454205920597178(Top 27%)803(Top 7%)803(Top 16%)
10K6.21 mi3.10 mi9394+10601567+4921567+4928593(Top 32%)1254(Top 11%)1254(Top 26%)
15K9.32 mi3.11 mi8606+7881265+3021265+3027178(Top 27%)803(Top 7%)803(Top 16%)
20K12.43 mi3.11 mi8022+5841062+2031062+2036629(Top 25%)689(Top 6%)689(Top 14%)
Half13.11 mi0.68 mi7991+311056+61056+67444(Top 28%)901(Top 8%)901(Top 18%)
25K15.53 mi2.42 mi7672+319955+101955+1016365(Top 24%)666(Top 6%)666(Top 14%)
30K18.64 mi3.11 mi7340+332874+81874+816203(Top 23%)685(Top 6%)685(Top 14%)
20M20.00 mi1.36 mi7246+94862+12862+126379(Top 24%)809(Top 7%)809(Top 17%)
21M21.00 mi1.00 mi7161+85846+16846+166568(Top 25%)965(Top 8%)965(Top 20%)
35K21.75 mi0.75 mi7165-4862-16862-167506(Top 28%)1298(Top 11%)1298(Top 27%)
23M23.00 mi1.25 mi7134+31883-21883-217381(Top 28%)1323(Top 12%)1323(Top 27%)
24M24.00 mi1.00 mi7117+17892-9892-97615(Top 29%)1520(Top 13%)1520(Top 31%)
40K24.85 mi0.85 mi7107+10910-18910-187729(Top 29%)1636(Top 14%)1636(Top 33%)
25.2M25.20 mi0.35 mi7060+47907+3907+36148(Top 23%)1098(Top 10%)1098(Top 22%)
Finish26.22 mi1.02 mi6983+779079076209(Top 23%)1133(Top 10%)1133(Top 23%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21stories
+97ft-345ft

Overall

7178

Females

803

F18-39

803

5K→10K

3.1 - 6.2 mi

Top 32%
×5stories
+79ft-138ft

Overall

8593

Females

1254

F18-39

1254

10K→15K

6.2 - 9.3 mi

Top 27%
×3stories
+67ft-78ft

Overall

7178

Females

803

F18-39

803

15K→20K

9.3 - 12.4 mi

Top 25%
×5stories
+106ft-86ft

Overall

6629

Females

689

F18-39

689

20K→Half

12.4 - 13.1 mi

Top 28%
×2stories
+19ft-37ft

Overall

7444

Females

901

F18-39

901

Half→25K

13.1 - 15.5 mi

Top 24%
×4stories
+66ft-88ft

Overall

6365

Females

666

F18-39

666

25K→30K

15.5 - 18.6 mi

Top 23%
×9stories
+181ft-148ft

Overall

6203

Females

685

F18-39

685

30K→20M

18.6 - 20.0 mi

Top 24%
×5stories
+64ft-50ft

Overall

6379

Females

809

F18-39

809

20M→21M

20.0 - 21.0 mi

Top 25%
×8stories
+106ft-24ft

Overall

6568

Females

965

F18-39

965

21M→35K

21.0 - 21.8 mi

Top 28%
×7stories
+17ft-86ft

Overall

7506

Females

1298

F18-39

1298

35K→23M

21.8 - 23.0 mi

Top 28%
×5stories
+23ft-63ft

Overall

7381

Females

1323

F18-39

1323

23M→24M

23.0 - 24.0 mi

Top 29%
×6stories
+12ft-82ft

Overall

7615

Females

1520

F18-39

1520

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

7729

Females

1636

F18-39

1636

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6148

Females

1098

F18-39

1098

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2stories
+22ft-21ft

Overall

6209

Females

1133

F18-39

1133

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3814*
Passed By
343
Net Change
+3471
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10454
5K → 10K1100*40+1060#10454#9394
10K → 15K7924+788#9394#8606
15K → 20K5884+584#8606#8022
20K → Half387+31#8022#7991
Half → 25K3201+319#7991#7672
25K → 30K34715+332#7672#7340
30K → 20M11218+94#7340#7246
20M → 21M10823+85#7246#7161
21M → 35K3640-4#7161#7165
35K → 23M10069+31#7165#7134
23M → 24M5841+17#7134#7117
24M → 40K5646+10#7117#7107
40K → 25.2M558+47#7107#7060
25.2M → Finish10427+77#7060#6983
TOTALS3814*343+3471

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

📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing