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BOSTON MARATHON 2023

Shelby Stoll

ME

Bib: 16270 F

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 37%
Gender (Female)
#0 / 11423
Top 18%
Division (F18-39)
#0 / 4884
Top 32%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:45/mi
24:04
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:37/mi
47:43
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:37/mi
1:11:22
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:45/mi
1:35:26
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:37/mi
1:40:38
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:43/mi
1:59:20
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:53/mi
2:23:51
↑ 181↓ 1480.2%
138 ft elev
20M
8:03/mi
2:34:47
↑ 64↓ 500.2%
148 ft elev
21M
8:19/mi
2:43:06
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:40/mi
2:48:50
↑ 17↓ 861.7%
156 ft elev
23M
7:37/mi
2:58:22
↑ 23↓ 630.6%
116 ft elev
24M
7:34/mi
3:05:56
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:48/mi
3:12:36
↓ 200.3%
20 ft elev
25.2M
8:13/mi
3:15:26
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:12/mi
3:22:46
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:38
Pace7:41 /mi
2nd Half
Distance13.11 mi
Time1:42:08
Pace7:47 /mi
📊Positive Split: 1.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:1924:047:4524:04
7:45
-
10K
6.21 mi11:37:5847:437:4123:39
7:37
-0:08
15K
9.32 mi12:01:371:11:227:3923:39
7:37
0:00
20K
12.43 mi12:25:411:35:267:4124:04
7:45
+0:08
Half
13.11 mi12:30:531:40:387:415:12
7:37
-0:08
25K
15.53 mi12:49:351:59:207:4118:42
7:43
+0:06
30K
18.64 mi13:14:062:23:517:4324:31
7:53
+0:10
20M
20.00 mi13:25:022:34:477:4410:56
8:03
+0:10
21M
21.00 mi13:33:212:43:067:468:19
8:19
+0:16
35K
21.75 mi13:39:052:48:507:465:44
7:40
-0:39
23M
23.00 mi13:48:372:58:227:459:32
7:37
-0:03
24M
24.00 mi13:56:113:05:567:457:34
7:34
-0:03
40K
24.85 mi14:02:513:12:367:456:40
7:48
+0:14
25.2M
25.20 mi14:05:413:15:267:452:50
8:13
+0:25
Finish
26.22 mi14:13:013:22:467:447:20
7:12
-1:01

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

7:12 /mi

Average Pace

7:44 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:00:41

89% of race

Time at Steady Pace

22:05

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:44 /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 mi11:14:1924:047:4524:04
7:45
#11889
10K
6.21 mi11:37:5847:437:4123:39
7:37
#11617
15K
9.32 mi12:01:371:11:227:3923:39
7:37
#11426
20K
12.43 mi12:25:411:35:267:4124:04
7:45
#11344
Half
13.11 mi12:30:531:40:387:415:12
7:37
#11335
25K
15.53 mi12:49:351:59:207:4118:42
7:43
#11160
30K
18.64 mi13:14:062:23:517:4324:31
7:53
#10897
20M
20.00 mi13:25:022:34:477:4410:56
8:03
#10836
21M
21.00 mi13:33:212:43:067:468:19
8:19
#10752
35K
21.75 mi13:39:052:48:507:465:44
7:40
#10685
23M
23.00 mi13:48:372:58:227:459:32
7:37
#10437
24M
24.00 mi13:56:113:05:567:457:34
7:34
#10317
40K
24.85 mi14:02:513:12:367:456:40
7:48
#10215
25.2M
25.20 mi14:05:413:15:267:452:50
8:13
#10171
Finish
26.22 mi14:13:013:22:467:447:20
7:12
#9983
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi118892803280311130(Top 42%)2421(Top 21%)2421(Top 50%)
10K6.21 mi3.10 mi11617+2722660+1432660+14311445(Top 43%)2573(Top 23%)2573(Top 53%)
15K9.32 mi3.11 mi11426+1912560+1002560+10011130(Top 42%)2421(Top 21%)2421(Top 50%)
20K12.43 mi3.11 mi11344+822522+382522+3811277(Top 42%)2557(Top 22%)2557(Top 52%)
Half13.11 mi0.68 mi11335+92524-22524-211247(Top 42%)2478(Top 22%)2478(Top 51%)
25K15.53 mi2.42 mi11160+1752440+842440+8410405(Top 39%)2182(Top 19%)2182(Top 45%)
30K18.64 mi3.11 mi10897+2632346+942346+9410075(Top 38%)2196(Top 19%)2196(Top 45%)
20M20.00 mi1.36 mi10836+612348-22348-210608(Top 40%)2534(Top 22%)2534(Top 52%)
21M21.00 mi1.00 mi10752+842327+212327+219352(Top 35%)2077(Top 18%)2077(Top 43%)
35K21.75 mi0.75 mi10685+672315+122315+129736(Top 37%)2240(Top 20%)2240(Top 46%)
23M23.00 mi1.25 mi10437+2482216+992216+997219(Top 27%)1261(Top 11%)1261(Top 26%)
24M24.00 mi1.00 mi10317+1202181+352181+358202(Top 31%)1767(Top 15%)1767(Top 36%)
40K24.85 mi0.85 mi10215+1022154+272154+278691(Top 33%)2027(Top 18%)2027(Top 42%)
25.2M25.20 mi0.35 mi10171+442145+92145+97867(Top 30%)1779(Top 16%)1779(Top 36%)
Finish26.22 mi1.02 mi9983+1882086+592086+596448(Top 24%)1226(Top 11%)1226(Top 25%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21story building
+97ft-345ft

Overall

11130

Females

2421

F18-39

2421

5K→10K

3.1 - 6.2 mi

Top 43%
×5story building
+79ft-138ft

Overall

11445

Females

2573

F18-39

2573

10K→15K

6.2 - 9.3 mi

Top 42%
×3story building
+67ft-78ft

Overall

11130

Females

2421

F18-39

2421

15K→20K

9.3 - 12.4 mi

Top 42%
×5story building
+106ft-86ft

Overall

11277

Females

2557

F18-39

2557

20K→Half

12.4 - 13.1 mi

Top 42%
×2story building
+19ft-37ft

Overall

11247

Females

2478

F18-39

2478

Half→25K

13.1 - 15.5 mi

Top 39%
×4story building
+66ft-88ft

Overall

10405

Females

2182

F18-39

2182

25K→30K

15.5 - 18.6 mi

Top 38%
×9story building
+181ft-148ft

Overall

10075

Females

2196

F18-39

2196

30K→20M

18.6 - 20.0 mi

Top 40%
×5story building
+64ft-50ft

Overall

10608

Females

2534

F18-39

2534

20M→21M

20.0 - 21.0 mi

Top 35%
×8story building
+106ft-24ft

Overall

9352

Females

2077

F18-39

2077

21M→35K

21.0 - 21.8 mi

Top 37%
×7story building
+17ft-86ft

Overall

9736

Females

2240

F18-39

2240

35K→23M

21.8 - 23.0 mi

Top 27%
×5story building
+23ft-63ft

Overall

7219

Females

1261

F18-39

1261

23M→24M

23.0 - 24.0 mi

Top 31%
×6story building
+12ft-82ft

Overall

8202

Females

1767

F18-39

1767

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

8691

Females

2027

F18-39

2027

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

7867

Females

1779

F18-39

1779

25.2M→Finish

25.2 - 26.2 mi

Top 24%
×2story building
+22ft-21ft

Overall

6448

Females

1226

F18-39

1226

Passing Analysis

Category:
Athletes Passed
2601*
Passed By
695
Net Change
+1906
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11889
5K → 10K457185+272#11889#11617
10K → 15K296105+191#11617#11426
15K → 20K199117+82#11426#11344
20K → Half3324+9#11344#11335
Half → 25K21439+175#11335#11160
25K → 30K32057+263#11160#10897
30K → 20M115*54+61#10897#10836
20M → 21M11430+84#10836#10752
21M → 35K8821+67#10752#10685
35K → 23M2535+248#10685#10437
23M → 24M13212+120#10437#10317
24M → 40K12624+102#10317#10215
40K → 25.2M56*12+44#10215#10171
25.2M → Finish198*10+188#10171#9983
TOTALS2601*695+1906

* 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