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BOSTON MARATHON 2025

Jill Corneil

Bib: 11793•F

ON

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 24%
Gender (Female)
#0 / 12228
Top 8%
Division (F18-39)
#0 / 5469
Top 15%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:10/mi
22:16
↑ 97↓ 3451.5%
10K· 6.21 mi
6:56/mi
43:49
↑ 79↓ 1380.4%
15K· 9.32 mi
6:57/mi
1:05:25
↑ 67↓ 78
20K· 12.43 mi
7:01/mi
1:27:13
↑ 106↓ 860.1%
Half· 13.11 mi
6:59/mi
1:31:59
↑ 19↓ 370.5%
25K· 15.53 mi
7:04/mi
1:49:07
↑ 66↓ 880.2%
30K· 18.64 mi
7:23/mi
2:12:04
↑ 181↓ 1480.2%
20M
7:20/mi
2:22:02
↑ 64↓ 500.2%
21M
7:42/mi
2:29:44
↑ 106↓ 241.6%
35K· 21.75 mi
7:37/mi
2:35:26
↑ 17↓ 861.7%
23M
7:39/mi
2:45:01
↑ 23↓ 630.6%
24M
7:35/mi
2:52:36
↓ 821.3%
40K· 24.85 mi
7:29/mi
2:59:00
↓ 200.3%
25.2M
8:30/mi
3:01:56
↑ 13↓ 160.2%
Finish· 26.22 mi
7:18/mi
3:09:22
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:59
Pace7:01 /mi
2nd Half
Distance13.11 mi
Time1:37:23
Pace7:26 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:3222:167:1022:16
7:10
-
10K
6.21 mi11:11:0543:497:0321:33
6:56
-0:14
15K
9.32 mi11:32:411:05:257:0121:36
6:57
+0:01
20K
12.43 mi11:54:291:27:137:0121:48
7:01
+0:04
Half
13.11 mi11:59:151:31:597:014:46
6:59
-0:02
25K
15.53 mi12:16:231:49:077:0117:08
7:04
+0:05
30K
18.64 mi12:39:202:12:047:0522:57
7:23
+0:19
20M
20.00 mi12:49:182:22:027:069:58
7:20
-0:03
21M
21.00 mi12:57:002:29:447:087:42
7:42
+0:22
35K
21.75 mi13:02:422:35:267:095:42
7:37
-0:05
23M
23.00 mi13:12:172:45:017:109:35
7:39
+0:02
24M
24.00 mi13:19:522:52:367:127:35
7:35
-0:04
40K
24.85 mi13:26:162:59:007:126:24
7:29
-0:06
25.2M
25.20 mi13:29:123:01:567:132:56
8:30
+1:01
Finish
26.22 mi13:36:383:09:227:147:26
7:18
-1:12

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

6:56 /mi

Average Pace

7:14 /mi

Slowest Pace

8:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:26:51

46% of race

Time at Steady Pace

1:09:01

36% of race

Time at Slower Pace

33:30

18% of race

Average Pace: 7:13 /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 mi10:49:3222:167:1022:16
7:10
#9204
10K
6.21 mi11:11:0543:497:0321:33
6:56
#8278
15K
9.32 mi11:32:411:05:257:0121:36
6:57
#7887
20K
12.43 mi11:54:291:27:137:0121:48
7:01
#7610
Half
13.11 mi11:59:151:31:597:014:46
6:59
#7602
25K
15.53 mi12:16:231:49:077:0117:08
7:04
#7419
30K
18.64 mi12:39:202:12:047:0522:57
7:23
#7244
20M
20.00 mi12:49:182:22:027:069:58
7:20
#7084
21M
21.00 mi12:57:002:29:447:087:42
7:42
#6917
35K
21.75 mi13:02:422:35:267:095:42
7:37
#6984
23M
23.00 mi13:12:172:45:017:109:35
7:39
#6957
24M
24.00 mi13:19:522:52:367:127:35
7:35
#6949
40K
24.85 mi13:26:162:59:007:126:24
7:29
#6891
25.2M
25.20 mi13:29:123:01:567:132:56
8:30
#6895
Finish
26.22 mi13:36:383:09:227:147:26
7:18
#6871
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9204145414547335(Top 26%)816(Top 7%)816(Top 15%)
10K6.21 mi3.10 mi8278+9261098+3561098+3567530(Top 27%)850(Top 7%)850(Top 16%)
15K9.32 mi3.11 mi7887+391956+142956+1427335(Top 26%)816(Top 7%)816(Top 15%)
20K12.43 mi3.11 mi7610+277889+67889+676990(Top 25%)778(Top 6%)778(Top 14%)
Half13.11 mi0.68 mi7602+8888+1888+17557(Top 27%)926(Top 8%)926(Top 17%)
25K15.53 mi2.42 mi7419+183843+45843+456769(Top 24%)798(Top 7%)798(Top 15%)
30K18.64 mi3.11 mi7244+175846-3846-36983(Top 25%)1001(Top 8%)1001(Top 18%)
20M20.00 mi1.36 mi7084+160826+20826+206019(Top 21%)792(Top 6%)792(Top 14%)
21M21.00 mi1.00 mi6917+167800+26800+265664(Top 20%)806(Top 7%)806(Top 15%)
35K21.75 mi0.75 mi6984-67840-40840-409478(Top 33%)2333(Top 19%)2333(Top 43%)
23M23.00 mi1.25 mi6957+27870-30870-307621(Top 27%)1655(Top 14%)1655(Top 30%)
24M24.00 mi1.00 mi6949+8902-32902-328298(Top 29%)1990(Top 16%)1990(Top 36%)
40K24.85 mi0.85 mi6891+58908-6908-66747(Top 24%)1434(Top 12%)1434(Top 26%)
25.2M25.20 mi0.35 mi6895-4922-14922-148840(Top 31%)2424(Top 20%)2424(Top 44%)
Finish26.22 mi1.02 mi6871+24946-24946-247756(Top 27%)1954(Top 16%)1954(Top 36%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21story building
+97ft-345ft

Overall

7335

Females

816

F18-39

816

5K→10K

3.1 - 6.2 mi

Top 27%
×5story building
+79ft-138ft

Overall

7530

Females

850

F18-39

850

10K→15K

6.2 - 9.3 mi

Top 26%
×3story building
+67ft-78ft

Overall

7335

Females

816

F18-39

816

15K→20K

9.3 - 12.4 mi

Top 25%
×5story building
+106ft-86ft

Overall

6990

Females

778

F18-39

778

20K→Half

12.4 - 13.1 mi

Top 27%
×2story building
+19ft-37ft

Overall

7557

Females

926

F18-39

926

Half→25K

13.1 - 15.5 mi

Top 24%
×4story building
+66ft-88ft

Overall

6769

Females

798

F18-39

798

25K→30K

15.5 - 18.6 mi

Top 25%
×9story building
+181ft-148ft

Overall

6983

Females

1001

F18-39

1001

30K→20M

18.6 - 20.0 mi

Top 21%
×5story building
+64ft-50ft

Overall

6019

Females

792

F18-39

792

20M→21M

20.0 - 21.0 mi

Top 20%
×8story building
+106ft-24ft

Overall

5664

Females

806

F18-39

806

21M→35K

21.0 - 21.8 mi

Top 33%
×7story building
+17ft-86ft

Overall

9478

Females

2333

F18-39

2333

35K→23M

21.8 - 23.0 mi

Top 27%
×5story building
+23ft-63ft

Overall

7621

Females

1655

F18-39

1655

23M→24M

23.0 - 24.0 mi

Top 29%
×6story building
+12ft-82ft

Overall

8298

Females

1990

F18-39

1990

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6747

Females

1434

F18-39

1434

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8840

Females

2424

F18-39

2424

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2story building
+22ft-21ft

Overall

7756

Females

1954

F18-39

1954

Passing Analysis

Category:
Athletes Passed
2919
Passed By
586
Net Change
+2333
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9204
5K → 10K94317+926#9204#8278
10K → 15K40817+391#8278#7887
15K → 20K30326+277#7887#7610
20K → Half2618+8#7610#7602
Half → 25K21027+183#7602#7419
25K → 30K26085+175#7419#7244
30K → 20M18121+160#7244#7084
20M → 21M1758+167#7084#6917
21M → 35K35102-67#6917#6984
35K → 23M10376+27#6984#6957
23M → 24M7466+8#6957#6949
24M → 40K9234+58#6949#6891
40K → 25.2M2630-4#6891#6895
25.2M → Finish8359+24#6895#6871
TOTALS2919586+2333
📊

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