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BOSTON MARATHON 2025

Kara Corey

Bib: 32307•F

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F40-44)
#0 / 1718
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:36
Rank: #23259
Start → 5K
28:36 | 9:12/mi
10K· 6.21 mi
57:33
Rank: #23429 (-170)
5K → 10K
28:57 | 9:19/mi
15K· 9.32 mi
1:27:22
Rank: #23676 (-247)
10K → 15K
29:49 | 9:36/mi
20K· 12.43 mi
1:57:37
Rank: #23650 (+26)
15K → 20K
30:15 | 9:44/mi
Half· 13.11 mi
2:04:05
Rank: #23648 (+2)
20K → Half
6:28 | 9:29/mi
25K· 15.53 mi
2:28:34
Rank: #23594 (+54)
Half → 25K
24:29 | 10:06/mi
30K· 18.64 mi
3:02:07
Rank: #23593 (+1)
25K → 30K
33:33 | 10:48/mi
20M
3:16:33
Rank: #23508 (+85)
30K → 20M
14:26 | 10:37/mi
21M
3:27:55
Rank: #23436 (+72)
20M → 21M
11:22 | 11:22/mi
35K· 21.75 mi
3:36:12
Rank: #23466 (-30)
21M → 35K
8:17 | 11:04/mi
23M
3:49:15
Rank: #23381 (+85)
35K → 23M
13:03 | 10:25/mi
24M
3:59:54
Rank: #23377 (+4)
23M → 24M
10:39 | 10:39/mi
40K· 24.85 mi
4:09:14
Rank: #23324 (+53)
24M → 40K
9:20 | 10:55/mi
25.2M
4:13:39
Rank: #23363 (-39)
40K → 25.2M
4:25 | 12:48/mi
Finish· 26.22 mi
4:23:23
Rank: #23312 (+51)
25.2M → Finish
9:44 | 9:33/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:04:05
Pace9:28 /mi
2nd Half
Distance13.11 mi
Time2:19:18
Pace10:38 /mi
📊Positive Split: 12.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:4828:369:1228:36
9:12
-
10K
6.21 mi12:23:4557:339:1628:57
9:19
+0:07
15K
9.32 mi12:53:341:27:229:2229:49
9:36
+0:17
20K
12.43 mi13:23:491:57:379:2830:15
9:44
+0:08
Half
13.11 mi13:30:172:04:059:286:28
9:29
-0:15
25K
15.53 mi13:54:462:28:349:3424:29
10:06
+0:37
30K
18.64 mi14:28:193:02:079:4633:33
10:48
+0:42
20M
20.00 mi14:42:453:16:339:5014:26
10:37
-0:11
21M
21.00 mi14:54:073:27:559:5411:22
11:22
+0:45
35K
21.75 mi15:02:243:36:129:568:17
11:04
-0:18
23M
23.00 mi15:15:273:49:159:5813:03
10:25
-0:39
24M
24.00 mi15:26:063:59:5410:0010:39
10:39
+0:14
40K
24.85 mi15:35:264:09:1410:029:20
10:55
+0:16
25.2M
25.20 mi15:39:514:13:3910:044:25
12:48
+1:53
Finish
26.22 mi15:49:354:23:2310:039:44
9:33
-3:15

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

9:12 /mi

Average Pace

10:03 /mi

Slowest Pace

12:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:13:49

51% of race

Time at Steady Pace

1:36:10

37% of race

Time at Slower Pace

33:24

13% of race

Average Pace: 10:03 /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 mi11:54:4828:369:1228:36
9:12
#23259
10K
6.21 mi12:23:4557:339:1628:57
9:19
#23429
15K
9.32 mi12:53:341:27:229:2229:49
9:36
#23676
20K
12.43 mi13:23:491:57:379:2830:15
9:44
#23650
Half
13.11 mi13:30:172:04:059:286:28
9:29
#23648
25K
15.53 mi13:54:462:28:349:3424:29
10:06
#23594
30K
18.64 mi14:28:193:02:079:4633:33
10:48
#23593
20M
20.00 mi14:42:453:16:339:5014:26
10:37
#23508
21M
21.00 mi14:54:073:27:559:5411:22
11:22
#23436
35K
21.75 mi15:02:243:36:129:568:17
11:04
#23466
23M
23.00 mi15:15:273:49:159:5813:03
10:25
#23381
24M
24.00 mi15:26:063:59:5410:0010:39
10:39
#23377
40K
24.85 mi15:35:264:09:1410:029:20
10:55
#23324
25.2M
25.20 mi15:39:514:13:3910:044:25
12:48
#23363
Finish
26.22 mi15:49:354:23:2310:039:44
9:33
#23312
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi232599310931024007(Top 85%)9672(Top 79%)9672(Top 563%)
10K6.21 mi3.10 mi23429-1709379-699379-6923593(Top 83%)9460(Top 77%)9460(Top 551%)
15K9.32 mi3.11 mi23676-2479503-1249503-12424007(Top 85%)9672(Top 79%)9672(Top 563%)
20K12.43 mi3.11 mi23650+269484+199484+1923598(Top 83%)9479(Top 78%)9479(Top 552%)
Half13.11 mi0.68 mi23648+29490-69490-623535(Top 83%)9449(Top 77%)9449(Top 550%)
25K15.53 mi2.42 mi23594+549476+149476+1423507(Top 83%)9484(Top 78%)9484(Top 552%)
30K18.64 mi3.11 mi23593+19508-329508-3223614(Top 83%)9660(Top 79%)9660(Top 562%)
20M20.00 mi1.36 mi23508+859477+319477+3122752(Top 80%)9286(Top 76%)9286(Top 541%)
21M21.00 mi1.00 mi23436+729467+109467+1022324(Top 79%)9153(Top 75%)9153(Top 533%)
35K21.75 mi0.75 mi23466-309496-299496-2924375(Top 86%)10259(Top 84%)10259(Top 597%)
23M23.00 mi1.25 mi23381+859464+329464+3221820(Top 77%)8977(Top 73%)8977(Top 523%)
24M24.00 mi1.00 mi23377+49480-169480-1623213(Top 82%)9740(Top 80%)9740(Top 567%)
40K24.85 mi0.85 mi23324+539471+99471+922965(Top 81%)9683(Top 79%)9683(Top 564%)
25.2M25.20 mi0.35 mi23363-399498-279498-2724771(Top 87%)10556(Top 86%)10556(Top 614%)
Finish26.22 mi1.02 mi23312+519480+189480+1821389(Top 75%)8860(Top 72%)8860(Top 516%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21stories
+97ft-345ft

Overall

24007

Females

9672

F40-44

9672

5K→10K

3.1 - 6.2 mi

Top 83%
×5stories
+79ft-138ft

Overall

23593

Females

9460

F40-44

9460

10K→15K

6.2 - 9.3 mi

Top 85%
×3stories
+67ft-78ft

Overall

24007

Females

9672

F40-44

9672

15K→20K

9.3 - 12.4 mi

Top 83%
×5stories
+106ft-86ft

Overall

23598

Females

9479

F40-44

9479

20K→Half

12.4 - 13.1 mi

Top 83%
×2stories
+19ft-37ft

Overall

23535

Females

9449

F40-44

9449

Half→25K

13.1 - 15.5 mi

Top 83%
×4stories
+66ft-88ft

Overall

23507

Females

9484

F40-44

9484

25K→30K

15.5 - 18.6 mi

Top 83%
×9stories
+181ft-148ft

Overall

23614

Females

9660

F40-44

9660

30K→20M

18.6 - 20.0 mi

Top 80%
×5stories
+64ft-50ft

Overall

22752

Females

9286

F40-44

9286

20M→21M

20.0 - 21.0 mi

Top 79%
×8stories
+106ft-24ft

Overall

22324

Females

9153

F40-44

9153

21M→35K

21.0 - 21.8 mi

Top 86%
×7stories
+17ft-86ft

Overall

24375

Females

10259

F40-44

10259

35K→23M

21.8 - 23.0 mi

Top 77%
×5stories
+23ft-63ft

Overall

21820

Females

8977

F40-44

8977

23M→24M

23.0 - 24.0 mi

Top 82%
×6stories
+12ft-82ft

Overall

23213

Females

9740

F40-44

9740

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

22965

Females

9683

F40-44

9683

40K→25.2M

24.9 - 25.2 mi

Top 87%
×1story
+13ft-16ft

Overall

24771

Females

10556

F40-44

10556

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2stories
+22ft-21ft

Overall

21389

Females

8860

F40-44

8860

Passing Analysis

Category:
Athletes Passed
1323
Passed By
1376
Net Change
-53
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23259
5K → 10K162332-170#23259#23429
10K → 15K102349-247#23429#23676
15K → 20K152126+26#23676#23650
20K → Half2422+2#23650#23648
Half → 25K14793+54#23648#23594
25K → 30K149148+1#23594#23593
30K → 20M11934+85#23593#23508
20M → 21M11644+72#23508#23436
21M → 35K3565-30#23436#23466
35K → 23M10621+85#23466#23381
23M → 24M5551+4#23381#23377
24M → 40K7320+53#23377#23324
40K → 25.2M1049-39#23324#23363
25.2M → Finish7322+51#23363#23312
TOTALS13231376-53
📊

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