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BOSTON MARATHON 2025

Shelby Stoll

Bib: 7300•F

ME

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 18%
Gender (Female)
#0 / 12228
Top 4%
Division (F18-39)
#0 / 5469
Top 7%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:31
Rank: #4653
Start → 5K
20:31 | 6:36/mi
10K· 6.21 mi
41:19
Rank: #4934 (-281)
5K → 10K
20:48 | 6:42/mi
15K· 9.32 mi
1:02:14
Rank: #5047 (-113)
10K → 15K
20:55 | 6:44/mi
20K· 12.43 mi
1:23:19
Rank: #5046 (+1)
15K → 20K
21:05 | 6:47/mi
Half· 13.11 mi
1:27:56
Rank: #5077 (-31)
20K → Half
4:37 | 6:46/mi
25K· 15.53 mi
1:44:24
Rank: #4980 (+97)
Half → 25K
16:28 | 6:47/mi
30K· 18.64 mi
2:06:19
Rank: #4970 (+10)
25K → 30K
21:55 | 7:03/mi
20M
2:16:06
Rank: #4970
30K → 20M
9:47 | 7:12/mi
21M
2:23:54
Rank: #5039 (-69)
20M → 21M
7:48 | 7:48/mi
35K· 21.75 mi
2:29:15
Rank: #5096 (-57)
21M → 35K
5:21 | 7:09/mi
23M
2:38:21
Rank: #5086 (+10)
35K → 23M
9:06 | 7:16/mi
24M
2:45:33
Rank: #5100 (-14)
23M → 24M
7:12 | 7:12/mi
40K· 24.85 mi
2:51:46
Rank: #5076 (+24)
24M → 40K
6:13 | 7:16/mi
25.2M
2:54:37
Rank: #5091 (-15)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
3:02:00
Rank: #5118 (-27)
25.2M → Finish
7:23 | 7:15/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:56
Pace6:42 /mi
2nd Half
Distance13.11 mi
Time1:34:04
Pace7:11 /mi
📊Positive Split: 7.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:5520:316:3620:31
6:36
-
10K
6.21 mi10:47:4341:196:3920:48
6:42
+0:06
15K
9.32 mi11:08:381:02:146:4120:55
6:44
+0:02
20K
12.43 mi11:29:431:23:196:4221:05
6:47
+0:03
Half
13.11 mi11:34:201:27:566:424:37
6:46
-0:01
25K
15.53 mi11:50:481:44:246:4316:28
6:47
+0:01
30K
18.64 mi12:12:432:06:196:4721:55
7:03
+0:16
20M
20.00 mi12:22:302:16:066:489:47
7:12
+0:09
21M
21.00 mi12:30:182:23:546:517:48
7:48
+0:36
35K
21.75 mi12:35:392:29:156:525:21
7:09
-0:39
23M
23.00 mi12:44:452:38:216:539:06
7:16
+0:07
24M
24.00 mi12:51:572:45:336:547:12
7:12
-0:04
40K
24.85 mi12:58:102:51:466:556:13
7:16
+0:04
25.2M
25.20 mi13:01:012:54:376:562:51
8:16
+1:00
Finish
26.22 mi13:08:243:02:006:577:23
7:15
-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

6:36 /mi

Average Pace

6:57 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:24

57% of race

Time at Steady Pace

1:06:57

37% of race

Time at Slower Pace

10:39

6% of race

Average Pace: 6:56 /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 mi10:26:5520:316:3620:31
6:36
#4653
10K
6.21 mi10:47:4341:196:3920:48
6:42
#4934
15K
9.32 mi11:08:381:02:146:4120:55
6:44
#5047
20K
12.43 mi11:29:431:23:196:4221:05
6:47
#5046
Half
13.11 mi11:34:201:27:566:424:37
6:46
#5077
25K
15.53 mi11:50:481:44:246:4316:28
6:47
#4980
30K
18.64 mi12:12:432:06:196:4721:55
7:03
#4970
20M
20.00 mi12:22:302:16:066:489:47
7:12
#4970
21M
21.00 mi12:30:182:23:546:517:48
7:48
#5039
35K
21.75 mi12:35:392:29:156:525:21
7:09
#5096
23M
23.00 mi12:44:452:38:216:539:06
7:16
#5086
24M
24.00 mi12:51:572:45:336:547:12
7:12
#5100
40K
24.85 mi12:58:102:51:466:556:13
7:16
#5076
25.2M
25.20 mi13:01:012:54:376:562:51
8:16
#5091
Finish
26.22 mi13:08:243:02:006:577:23
7:15
#5118
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi46532832835410(Top 19%)422(Top 3%)422(Top 8%)
10K6.21 mi3.10 mi4934-281322-39322-395323(Top 19%)385(Top 3%)385(Top 7%)
15K9.32 mi3.11 mi5047-113337-15337-155410(Top 19%)422(Top 3%)422(Top 8%)
20K12.43 mi3.11 mi5046+1343-6343-65185(Top 18%)398(Top 3%)398(Top 7%)
Half13.11 mi0.68 mi5077-31353-10353-105924(Top 21%)522(Top 4%)522(Top 10%)
25K15.53 mi2.42 mi4980+97350+3350+34829(Top 17%)377(Top 3%)377(Top 7%)
30K18.64 mi3.11 mi4970+10370-20370-205053(Top 18%)458(Top 4%)458(Top 8%)
20M20.00 mi1.36 mi4970377-7377-75212(Top 18%)560(Top 5%)560(Top 10%)
21M21.00 mi1.00 mi5039-69391-14391-146207(Top 22%)985(Top 8%)985(Top 18%)
35K21.75 mi0.75 mi5096-57408-17408-176306(Top 22%)1014(Top 8%)1014(Top 19%)
23M23.00 mi1.25 mi5086+10418-10418-105283(Top 19%)755(Top 6%)755(Top 14%)
24M24.00 mi1.00 mi5100-14435-17435-175841(Top 21%)998(Top 8%)998(Top 18%)
40K24.85 mi0.85 mi5076+244354355503(Top 19%)929(Top 8%)929(Top 17%)
25.2M25.20 mi0.35 mi5091-15444-9444-97473(Top 26%)1813(Top 15%)1813(Top 33%)
Finish26.22 mi1.02 mi5118-27458-14458-147373(Top 26%)1793(Top 15%)1793(Top 33%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

5410

Females

422

F18-39

422

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

5323

Females

385

F18-39

385

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

5410

Females

422

F18-39

422

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

5185

Females

398

F18-39

398

20K→Half

12.4 - 13.1 mi

Top 21%
×2stories
+19ft-37ft

Overall

5924

Females

522

F18-39

522

Half→25K

13.1 - 15.5 mi

Top 17%
×4stories
+66ft-88ft

Overall

4829

Females

377

F18-39

377

25K→30K

15.5 - 18.6 mi

Top 18%
×9stories
+181ft-148ft

Overall

5053

Females

458

F18-39

458

30K→20M

18.6 - 20.0 mi

Top 18%
×5stories
+64ft-50ft

Overall

5212

Females

560

F18-39

560

20M→21M

20.0 - 21.0 mi

Top 22%
×8stories
+106ft-24ft

Overall

6207

Females

985

F18-39

985

21M→35K

21.0 - 21.8 mi

Top 22%
×7stories
+17ft-86ft

Overall

6306

Females

1014

F18-39

1014

35K→23M

21.8 - 23.0 mi

Top 19%
×5stories
+23ft-63ft

Overall

5283

Females

755

F18-39

755

23M→24M

23.0 - 24.0 mi

Top 21%
×6stories
+12ft-82ft

Overall

5841

Females

998

F18-39

998

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

5503

Females

929

F18-39

929

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7473

Females

1813

F18-39

1813

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2stories
+22ft-21ft

Overall

7373

Females

1793

F18-39

1793

Passing Analysis

Category:
Athletes Passed
1025
Passed By
1490
Net Change
-465
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4653
5K → 10K74355-281#4653#4934
10K → 15K83196-113#4934#5047
15K → 20K125124+1#5047#5046
20K → Half1748-31#5046#5077
Half → 25K14750+97#5077#4980
25K → 30K170160+10#4980#4970
30K → 20M73730#4970#4970
20M → 21M49118-69#4970#5039
21M → 35K3794-57#5039#5096
35K → 23M8676+10#5096#5086
23M → 24M5165-14#5086#5100
24M → 40K6036+24#5100#5076
40K → 25.2M1934-15#5076#5091
25.2M → Finish3461-27#5091#5118
TOTALS10251490-465
📊

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