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BOSTON MARATHON 2025

Kelly Mccarthy

Bib: 14419•F

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 42%
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
7:33/mi
23:28
↑ 97↓ 3451.5%
10K· 6.21 mi
7:35/mi
47:03
↑ 79↓ 1380.4%
15K· 9.32 mi
7:47/mi
1:11:13
↑ 67↓ 78
20K· 12.43 mi
8:24/mi
1:37:19
↑ 106↓ 860.1%
Half· 13.11 mi
8:15/mi
1:42:57
↑ 19↓ 370.5%
25K· 15.53 mi
8:44/mi
2:04:08
↑ 66↓ 880.2%
30K· 18.64 mi
8:48/mi
2:31:27
↑ 181↓ 1480.2%
20M
9:16/mi
2:44:02
↑ 64↓ 500.2%
21M
9:18/mi
2:53:20
↑ 106↓ 241.6%
35K· 21.75 mi
8:48/mi
2:59:55
↑ 17↓ 861.7%
23M
9:08/mi
3:11:21
↑ 23↓ 630.6%
24M
8:49/mi
3:20:10
↓ 821.3%
40K· 24.85 mi
8:24/mi
3:27:21
↓ 200.3%
25.2M
8:56/mi
3:30:26
↑ 13↓ 160.2%
Finish· 26.22 mi
7:31/mi
3:38:06
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:57
Pace7:51 /mi
2nd Half
Distance13.11 mi
Time1:55:09
Pace8:47 /mi
📊Positive Split: 11.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:5123:287:3323:28
7:33
-
10K
6.21 mi11:17:2647:037:3423:35
7:35
+0:02
15K
9.32 mi11:41:361:11:137:3824:10
7:47
+0:12
20K
12.43 mi12:07:421:37:197:5026:06
8:24
+0:37
Half
13.11 mi12:13:201:42:577:515:38
8:15
-0:09
25K
15.53 mi12:34:312:04:087:5921:11
8:44
+0:29
30K
18.64 mi13:01:502:31:278:0727:19
8:48
+0:04
20M
20.00 mi13:14:252:44:028:1212:35
9:16
+0:28
21M
21.00 mi13:23:432:53:208:159:18
9:18
+0:02
35K
21.75 mi13:30:182:59:558:166:35
8:48
-0:30
23M
23.00 mi13:41:443:11:218:1911:26
9:08
+0:20
24M
24.00 mi13:50:333:20:108:208:49
8:49
-0:19
40K
24.85 mi13:57:443:27:218:217:11
8:24
-0:25
25.2M
25.20 mi14:00:493:30:268:213:05
8:56
+0:32
Finish
26.22 mi14:08:293:38:068:197:40
7:31
-1:25

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

7:31 /mi

Average Pace

8:19 /mi

Slowest Pace

9:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:48

54% of race

Time at Steady Pace

1:06:59

31% of race

Time at Slower Pace

33:19

15% of race

Average Pace: 8:19 /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 mi10:53:5123:287:3323:28
7:33
#12710
10K
6.21 mi11:17:2647:037:3423:35
7:35
#12780
15K
9.32 mi11:41:361:11:137:3824:10
7:47
#13243
20K
12.43 mi12:07:421:37:197:5026:06
8:24
#14500
Half
13.11 mi12:13:201:42:577:515:38
8:15
#14700
25K
15.53 mi12:34:312:04:087:5921:11
8:44
#15476
30K
18.64 mi13:01:502:31:278:0727:19
8:48
#15695
20M
20.00 mi13:14:252:44:028:1212:35
9:16
#15873
21M
21.00 mi13:23:432:53:208:159:18
9:18
#15780
35K
21.75 mi13:30:182:59:558:166:35
8:48
#15781
23M
23.00 mi13:41:443:11:218:1911:26
9:08
#15808
24M
24.00 mi13:50:333:20:108:208:49
8:49
#15834
40K
24.85 mi13:57:443:27:218:217:11
8:24
#15693
25.2M
25.20 mi14:00:493:30:268:213:05
8:56
#15618
Finish
26.22 mi14:08:293:38:068:197:40
7:31
#15401
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi127103175317514202(Top 50%)4141(Top 34%)4141(Top 76%)
10K6.21 mi3.10 mi12780-703220-453220-4512960(Top 46%)3352(Top 27%)3352(Top 61%)
15K9.32 mi3.11 mi13243-4633540-3203540-32014202(Top 50%)4141(Top 34%)4141(Top 76%)
20K12.43 mi3.11 mi14500-12574288-7484288-74817556(Top 62%)6078(Top 50%)6078(Top 111%)
Half13.11 mi0.68 mi14700-2004411-1234411-12317657(Top 62%)6111(Top 50%)6111(Top 112%)
25K15.53 mi2.42 mi15476-7764874-4634874-46318605(Top 66%)6754(Top 55%)6754(Top 123%)
30K18.64 mi3.11 mi15695-2195046-1725046-17216560(Top 58%)5776(Top 47%)5776(Top 106%)
20M20.00 mi1.36 mi15873-1785197-1515197-15118094(Top 64%)6763(Top 55%)6763(Top 124%)
21M21.00 mi1.00 mi15780+935180+175180+1715160(Top 53%)5264(Top 43%)5264(Top 96%)
35K21.75 mi0.75 mi15781-15201-215201-2117252(Top 61%)6487(Top 53%)6487(Top 119%)
23M23.00 mi1.25 mi15808-275252-515252-5117009(Top 60%)6452(Top 53%)6452(Top 118%)
24M24.00 mi1.00 mi15834-265285-335285-3316425(Top 58%)6161(Top 50%)6161(Top 113%)
40K24.85 mi0.85 mi15693+1415225+605225+6012844(Top 45%)4364(Top 36%)4364(Top 80%)
25.2M25.20 mi0.35 mi15618+755198+275198+2711572(Top 41%)3809(Top 31%)3809(Top 70%)
Finish26.22 mi1.02 mi15401+2175106+925106+929410(Top 33%)2738(Top 22%)2738(Top 50%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21story building
+97ft-345ft

Overall

14202

Females

4141

F18-39

4141

5K→10K

3.1 - 6.2 mi

Top 46%
×5story building
+79ft-138ft

Overall

12960

Females

3352

F18-39

3352

10K→15K

6.2 - 9.3 mi

Top 50%
×3story building
+67ft-78ft

Overall

14202

Females

4141

F18-39

4141

15K→20K

9.3 - 12.4 mi

Top 62%
×5story building
+106ft-86ft

Overall

17556

Females

6078

F18-39

6078

20K→Half

12.4 - 13.1 mi

Top 62%
×2story building
+19ft-37ft

Overall

17657

Females

6111

F18-39

6111

Half→25K

13.1 - 15.5 mi

Top 66%
×4story building
+66ft-88ft

Overall

18605

Females

6754

F18-39

6754

25K→30K

15.5 - 18.6 mi

Top 58%
×9story building
+181ft-148ft

Overall

16560

Females

5776

F18-39

5776

30K→20M

18.6 - 20.0 mi

Top 64%
×5story building
+64ft-50ft

Overall

18094

Females

6763

F18-39

6763

20M→21M

20.0 - 21.0 mi

Top 53%
×8story building
+106ft-24ft

Overall

15160

Females

5264

F18-39

5264

21M→35K

21.0 - 21.8 mi

Top 61%
×7story building
+17ft-86ft

Overall

17252

Females

6487

F18-39

6487

35K→23M

21.8 - 23.0 mi

Top 60%
×5story building
+23ft-63ft

Overall

17009

Females

6452

F18-39

6452

23M→24M

23.0 - 24.0 mi

Top 58%
×6story building
+12ft-82ft

Overall

16425

Females

6161

F18-39

6161

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

12844

Females

4364

F18-39

4364

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

11572

Females

3809

F18-39

3809

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2story building
+22ft-21ft

Overall

9410

Females

2738

F18-39

2738

Passing Analysis

Category:
Athletes Passed
1492
Passed By
4183
Net Change
-2691
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12710
5K → 10K251321-70#12710#12780
10K → 15K78541-463#12780#13243
15K → 20K341291-1257#13243#14500
20K → Half10210-200#14500#14700
Half → 25K44820-776#14700#15476
25K → 30K169388-219#15476#15695
30K → 20M71249-178#15695#15873
20M → 21M15663+93#15873#15780
21M → 35K7374-1#15780#15781
35K → 23M97124-27#15781#15808
23M → 24M6187-26#15808#15834
24M → 40K15312+141#15834#15693
40K → 25.2M761+75#15693#15618
25.2M → Finish2192+217#15618#15401
TOTALS14924183-2691
📊

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