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BOSTON MARATHON 2025

Claire Kenny

Bib: 12400•F

IL

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 34%
Gender (Female)
#0 / 12228
Top 16%
Division (F18-39)
#0 / 5469
Top 29%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:54
Rank: #8228
Start → 5K
7:03/mi
21:54 split
10K· 6.21 mi
44:11
Rank: #8726 (-498)
5K → 10K
7:10/mi
22:17 split
15K· 9.32 mi
1:06:08
Rank: #8440 (+286)
10K → 15K
7:04/mi
21:57 split
20K· 12.43 mi
1:28:13
Rank: #8180 (+260)
15K → 20K
7:06/mi
22:05 split
Half· 13.11 mi
1:32:59
Rank: #8127 (+53)
20K → Half
6:59/mi
4:46 split
25K· 15.53 mi
1:50:15
Rank: #7910 (+217)
Half → 25K
7:07/mi
17:16 split
30K· 18.64 mi
2:14:49
Rank: #8280 (-370)
25K → 30K
7:54/mi
24:34 split
20M
2:26:19
Rank: #8664 (-384)
30K → 20M
8:28/mi
11:30 split
21M
2:35:35
Rank: #9061 (-397)
20M → 21M
9:16/mi
9:16 split
35K· 21.75 mi
2:41:29
Rank: #9130 (-69)
21M → 35K
7:53/mi
5:54 split
23M
2:51:28
Rank: #9109 (+21)
35K → 23M
7:58/mi
9:59 split
24M
2:59:28
Rank: #9205 (-96)
23M → 24M
8:00/mi
8:00 split
40K· 24.85 mi
3:06:36
Rank: #9311 (-106)
24M → 40K
8:21/mi
7:08 split
25.2M
3:09:59
Rank: #9435 (-124)
40K → 25.2M
9:49/mi
3:23 split
Finish· 26.22 mi
3:18:01
Rank: #9522 (-87)
25.2M → Finish
7:53/mi
8:02 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:59
Pace7:06 /mi
2nd Half
Distance13.11 mi
Time1:45:02
Pace8:01 /mi
📊Positive Split: 13.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:1221:547:0321:54
7:03
-
10K
6.21 mi11:12:2944:117:0722:17
7:10
+0:07
15K
9.32 mi11:34:261:06:087:0621:57
7:04
-0:06
20K
12.43 mi11:56:311:28:137:0622:05
7:06
+0:02
Half
13.11 mi12:01:171:32:597:064:46
6:59
-0:07
25K
15.53 mi12:18:331:50:157:0617:16
7:07
+0:08
30K
18.64 mi12:43:072:14:497:1424:34
7:54
+0:47
20M
20.00 mi12:54:372:26:197:1911:30
8:28
+0:34
21M
21.00 mi13:03:532:35:357:259:16
9:16
+0:48
35K
21.75 mi13:09:472:41:297:265:54
7:53
-1:23
23M
23.00 mi13:19:462:51:287:279:59
7:58
+0:05
24M
24.00 mi13:27:462:59:287:298:00
8:00
+0:02
40K
24.85 mi13:34:543:06:367:307:08
8:21
+0:21
25.2M
25.20 mi13:38:173:09:597:323:23
9:49
+1:28
Finish
26.22 mi13:46:193:18:017:338:02
7:53
-1:56

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

6:59 /mi

Average Pace

7:33 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:50:15

56% of race

Time at Steady Pace

56:29

29% of race

Time at Slower Pace

31:17

16% of race

Average Pace: 7:33 /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 mi10:50:1221:547:0321:54
7:03
#8228
10K
6.21 mi11:12:2944:117:0722:17
7:10
#8726
15K
9.32 mi11:34:261:06:087:0621:57
7:04
#8440
20K
12.43 mi11:56:311:28:137:0622:05
7:06
#8180
Half
13.11 mi12:01:171:32:597:064:46
6:59
#8127
25K
15.53 mi12:18:331:50:157:0617:16
7:07
#7910
30K
18.64 mi12:43:072:14:497:1424:34
7:54
#8280
20M
20.00 mi12:54:372:26:197:1911:30
8:28
#8664
21M
21.00 mi13:03:532:35:357:259:16
9:16
#9061
35K
21.75 mi13:09:472:41:297:265:54
7:53
#9130
23M
23.00 mi13:19:462:51:287:279:59
7:58
#9109
24M
24.00 mi13:27:462:59:287:298:00
8:00
#9205
40K
24.85 mi13:34:543:06:367:307:08
8:21
#9311
25.2M
25.20 mi13:38:173:09:597:323:23
9:49
#9435
Finish
26.22 mi13:46:193:18:017:338:02
7:53
#9522
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8228107010708102(Top 29%)1077(Top 9%)1077(Top 20%)
10K6.21 mi3.10 mi8726-4981269-1991269-1999274(Top 33%)1499(Top 12%)1499(Top 27%)
15K9.32 mi3.11 mi8440+2861175+941175+948102(Top 29%)1077(Top 9%)1077(Top 20%)
20K12.43 mi3.11 mi8180+2601094+811094+817584(Top 27%)966(Top 8%)966(Top 18%)
Half13.11 mi0.68 mi8127+531075+191075+197584(Top 27%)953(Top 8%)953(Top 17%)
25K15.53 mi2.42 mi7910+2171014+611014+617126(Top 25%)901(Top 7%)901(Top 16%)
30K18.64 mi3.11 mi8280-3701213-1991213-19910696(Top 38%)2638(Top 22%)2638(Top 48%)
20M20.00 mi1.36 mi8664-3841407-1941407-19413545(Top 48%)4262(Top 35%)4262(Top 78%)
21M21.00 mi1.00 mi9061-3971599-1921599-19214965(Top 53%)5148(Top 42%)5148(Top 94%)
35K21.75 mi0.75 mi9130-691657-581657-5811467(Top 40%)3339(Top 27%)3339(Top 61%)
23M23.00 mi1.25 mi9109+211689-321689-329861(Top 35%)2665(Top 22%)2665(Top 49%)
24M24.00 mi1.00 mi9205-961757-681757-6811243(Top 40%)3423(Top 28%)3423(Top 63%)
40K24.85 mi0.85 mi9311-1061850-931850-9312423(Top 44%)4132(Top 34%)4132(Top 76%)
25.2M25.20 mi0.35 mi9435-1241926-761926-7616150(Top 57%)6135(Top 50%)6135(Top 112%)
Finish26.22 mi1.02 mi9522-872006-802006-8012064(Top 42%)3952(Top 32%)3952(Top 72%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21stories
+97ft-345ft

Overall

8102

Females

1077

F18-39

1077

5K→10K

3.1 - 6.2 mi

Top 33%
×5stories
+79ft-138ft

Overall

9274

Females

1499

F18-39

1499

10K→15K

6.2 - 9.3 mi

Top 29%
×3stories
+67ft-78ft

Overall

8102

Females

1077

F18-39

1077

15K→20K

9.3 - 12.4 mi

Top 27%
×5stories
+106ft-86ft

Overall

7584

Females

966

F18-39

966

20K→Half

12.4 - 13.1 mi

Top 27%
×2stories
+19ft-37ft

Overall

7584

Females

953

F18-39

953

Half→25K

13.1 - 15.5 mi

Top 25%
×4stories
+66ft-88ft

Overall

7126

Females

901

F18-39

901

25K→30K

15.5 - 18.6 mi

Top 38%
×9stories
+181ft-148ft

Overall

10696

Females

2638

F18-39

2638

30K→20M

18.6 - 20.0 mi

Top 48%
×5stories
+64ft-50ft

Overall

13545

Females

4262

F18-39

4262

20M→21M

20.0 - 21.0 mi

Top 53%
×8stories
+106ft-24ft

Overall

14965

Females

5148

F18-39

5148

21M→35K

21.0 - 21.8 mi

Top 40%
×7stories
+17ft-86ft

Overall

11467

Females

3339

F18-39

3339

35K→23M

21.8 - 23.0 mi

Top 35%
×5stories
+23ft-63ft

Overall

9861

Females

2665

F18-39

2665

23M→24M

23.0 - 24.0 mi

Top 40%
×6stories
+12ft-82ft

Overall

11243

Females

3423

F18-39

3423

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

12423

Females

4132

F18-39

4132

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

16150

Females

6135

F18-39

6135

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2stories
+22ft-21ft

Overall

12064

Females

3952

F18-39

3952

Passing Analysis

Category:
Athletes Passed
1473
Passed By
2767
Net Change
-1294
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8228
5K → 10K58556-498#8228#8726
10K → 15K33448+286#8726#8440
15K → 20K30444+260#8440#8180
20K → Half585+53#8180#8127
Half → 25K23922+217#8127#7910
25K → 30K96466-370#7910#8280
30K → 20M32416-384#8280#8664
20M → 21M25422-397#8664#9061
21M → 35K42111-69#9061#9130
35K → 23M11594+21#9130#9109
23M → 24M56152-96#9109#9205
24M → 40K52158-106#9205#9311
40K → 25.2M12136-124#9311#9435
25.2M → Finish50137-87#9435#9522
TOTALS14732767-1294
📊

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