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BOSTON MARATHON 2025

Claire Kelly

Bib: 29873•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
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
9:50/mi
30:32
↑ 97↓ 3451.5%
10K· 6.21 mi
9:24/mi
59:43
↑ 79↓ 1380.4%
15K· 9.32 mi
9:19/mi
1:28:39
↑ 67↓ 78
20K· 12.43 mi
9:17/mi
1:57:30
↑ 106↓ 860.1%
Half· 13.11 mi
9:05/mi
2:03:42
↑ 19↓ 370.5%
25K· 15.53 mi
9:22/mi
2:26:25
↑ 66↓ 880.2%
30K· 18.64 mi
10:01/mi
2:57:32
↑ 181↓ 1480.2%
20M
10:07/mi
3:11:17
↑ 64↓ 500.2%
21M
11:15/mi
3:22:32
↑ 106↓ 241.6%
35K· 21.75 mi
10:14/mi
3:30:11
↑ 17↓ 861.7%
23M
10:57/mi
3:43:53
↑ 23↓ 630.6%
24M
9:58/mi
3:53:51
↓ 821.3%
40K· 24.85 mi
10:34/mi
4:02:53
↓ 200.3%
25.2M
11:27/mi
4:06:50
↑ 13↓ 160.2%
Finish· 26.22 mi
10:00/mi
4:17:01
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:03:42
Pace9:26 /mi
2nd Half
Distance13.11 mi
Time2:13:19
Pace10:10 /mi
📊Positive Split: 7.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:5730:329:5030:32
9:50
-
10K
6.21 mi12:18:0859:439:3729:11
9:24
-0:26
15K
9.32 mi12:47:041:28:399:3128:56
9:19
-0:05
20K
12.43 mi13:15:551:57:309:2728:51
9:17
-0:02
Half
13.11 mi13:22:072:03:429:266:12
9:05
-0:12
25K
15.53 mi13:44:502:26:259:2622:43
9:22
+0:17
30K
18.64 mi14:15:572:57:329:3131:07
10:01
+0:39
20M
20.00 mi14:29:423:11:179:3413:45
10:07
+0:06
21M
21.00 mi14:40:573:22:329:3911:15
11:15
+1:08
35K
21.75 mi14:48:363:30:119:407:39
10:14
-1:01
23M
23.00 mi15:02:183:43:539:4413:42
10:57
+0:43
24M
24.00 mi15:12:163:53:519:459:58
9:58
-0:59
40K
24.85 mi15:21:184:02:539:469:02
10:34
+0:36
25.2M
25.20 mi15:25:154:06:509:483:57
11:27
+0:53
Finish
26.22 mi15:35:264:17:019:4910:11
10:00
-1:27

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

9:05 /mi

Average Pace

9:49 /mi

Slowest Pace

11:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55:53

45% of race

Time at Steady Pace

1:43:12

40% of race

Time at Slower Pace

37:56

15% of race

Average Pace: 9:48 /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 mi11:48:5730:329:5030:32
9:50
#25156
10K
6.21 mi12:18:0859:439:3729:11
9:24
#24482
15K
9.32 mi12:47:041:28:399:3128:56
9:19
#24070
20K
12.43 mi13:15:551:57:309:2728:51
9:17
#23626
Half
13.11 mi13:22:072:03:429:266:12
9:05
#23583
25K
15.53 mi13:44:502:26:259:2622:43
9:22
#23193
30K
18.64 mi14:15:572:57:329:3131:07
10:01
#22866
20M
20.00 mi14:29:423:11:179:3413:45
10:07
#22765
21M
21.00 mi14:40:573:22:329:3911:15
11:15
#22709
35K
21.75 mi14:48:363:30:119:407:39
10:14
#22682
23M
23.00 mi15:02:183:43:539:4413:42
10:57
#22703
24M
24.00 mi15:12:163:53:519:459:58
9:58
#22619
40K
24.85 mi15:21:184:02:539:469:02
10:34
#22598
25.2M
25.20 mi15:25:154:06:509:483:57
11:27
#22592
Finish
26.22 mi15:35:264:17:019:4910:11
10:00
#22597
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25156102921029223259(Top 82%)9238(Top 76%)9238(Top 169%)
10K6.21 mi3.10 mi24482+6749939+3539939+35323813(Top 84%)9575(Top 78%)9575(Top 175%)
15K9.32 mi3.11 mi24070+4129714+2259714+22523259(Top 82%)9238(Top 76%)9238(Top 169%)
20K12.43 mi3.11 mi23626+4449474+2409474+24022236(Top 78%)8718(Top 71%)8718(Top 159%)
Half13.11 mi0.68 mi23583+439454+209454+2022215(Top 78%)8732(Top 71%)8732(Top 160%)
25K15.53 mi2.42 mi23193+3909237+2179237+21721444(Top 75%)8335(Top 68%)8335(Top 152%)
30K18.64 mi3.11 mi22866+3279106+1319106+13121644(Top 76%)8586(Top 70%)8586(Top 157%)
20M20.00 mi1.36 mi22765+1019083+239083+2321360(Top 75%)8559(Top 70%)8559(Top 157%)
21M21.00 mi1.00 mi22709+569064+199064+1922053(Top 78%)8999(Top 74%)8999(Top 165%)
35K21.75 mi0.75 mi22682+279064906422513(Top 79%)9292(Top 76%)9292(Top 170%)
23M23.00 mi1.25 mi22703-219101-379101-3723100(Top 81%)9656(Top 79%)9656(Top 177%)
24M24.00 mi1.00 mi22619+849082+199082+1921295(Top 75%)8753(Top 72%)8753(Top 160%)
40K24.85 mi0.85 mi22598+219085-39085-322107(Top 78%)9257(Top 76%)9257(Top 169%)
25.2M25.20 mi0.35 mi22592+69092-79092-721965(Top 77%)9137(Top 75%)9137(Top 167%)
Finish26.22 mi1.02 mi22597-59113-219113-2122933(Top 81%)9634(Top 79%)9634(Top 176%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21story building
+97ft-345ft

Overall

23259

Females

9238

F18-39

9238

5K→10K

3.1 - 6.2 mi

Top 84%
×5story building
+79ft-138ft

Overall

23813

Females

9575

F18-39

9575

10K→15K

6.2 - 9.3 mi

Top 82%
×3story building
+67ft-78ft

Overall

23259

Females

9238

F18-39

9238

15K→20K

9.3 - 12.4 mi

Top 78%
×5story building
+106ft-86ft

Overall

22236

Females

8718

F18-39

8718

20K→Half

12.4 - 13.1 mi

Top 78%
×2story building
+19ft-37ft

Overall

22215

Females

8732

F18-39

8732

Half→25K

13.1 - 15.5 mi

Top 75%
×4story building
+66ft-88ft

Overall

21444

Females

8335

F18-39

8335

25K→30K

15.5 - 18.6 mi

Top 76%
×9story building
+181ft-148ft

Overall

21644

Females

8586

F18-39

8586

30K→20M

18.6 - 20.0 mi

Top 75%
×5story building
+64ft-50ft

Overall

21360

Females

8559

F18-39

8559

20M→21M

20.0 - 21.0 mi

Top 78%
×8story building
+106ft-24ft

Overall

22053

Females

8999

F18-39

8999

21M→35K

21.0 - 21.8 mi

Top 79%
×7story building
+17ft-86ft

Overall

22513

Females

9292

F18-39

9292

35K→23M

21.8 - 23.0 mi

Top 81%
×5story building
+23ft-63ft

Overall

23100

Females

9656

F18-39

9656

23M→24M

23.0 - 24.0 mi

Top 75%
×6story building
+12ft-82ft

Overall

21295

Females

8753

F18-39

8753

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

22107

Females

9257

F18-39

9257

40K→25.2M

24.9 - 25.2 mi

Top 77%
×1story
+13ft-16ft

Overall

21965

Females

9137

F18-39

9137

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2story building
+22ft-21ft

Overall

22933

Females

9634

F18-39

9634

Passing Analysis

Category:
Athletes Passed
2946
Passed By
387
Net Change
+2559
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25156
5K → 10K69622+674#25156#24482
10K → 15K42816+412#24482#24070
15K → 20K4506+444#24070#23626
20K → Half485+43#23626#23583
Half → 25K3955+390#23583#23193
25K → 30K35932+327#23193#22866
30K → 20M13332+101#22866#22765
20M → 21M9640+56#22765#22709
21M → 35K6235+27#22709#22682
35K → 23M6586-21#22682#22703
23M → 24M10218+84#22703#22619
24M → 40K4928+21#22619#22598
40K → 25.2M2317+6#22598#22592
25.2M → Finish4045-5#22592#22597
TOTALS2946387+2559
📊

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