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BOSTON MARATHON 2025

Kathleen Harcourt

Bib: 13441•F

CO

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 47%
Gender (Female)
#0 / 12228
Top 32%
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:24
Rank: #12540
Start → 5K
23:24 | 7:32/mi
10K· 6.21 mi
47:26
Rank: #13348 (-808)
5K → 10K
24:02 | 7:44/mi
15K· 9.32 mi
1:11:31
Rank: #13519 (-171)
10K → 15K
24:05 | 7:45/mi
20K· 12.43 mi
1:36:18
Rank: #13796 (-277)
15K → 20K
24:47 | 7:59/mi
Half· 13.11 mi
1:41:51
Rank: #13997 (-201)
20K → Half
5:33 | 8:08/mi
25K· 15.53 mi
2:01:26
Rank: #14024 (-27)
Half → 25K
19:35 | 8:05/mi
30K· 18.64 mi
2:27:59
Rank: #14177 (-153)
25K → 30K
26:33 | 8:33/mi
20M
2:39:20
Rank: #14043 (+134)
30K → 20M
11:21 | 8:21/mi
21M
2:48:17
Rank: #13954 (+89)
20M → 21M
8:57 | 8:57/mi
35K· 21.75 mi
2:54:31
Rank: #13963 (-9)
21M → 35K
6:14 | 8:20/mi
23M
3:04:50
Rank: #13815 (+148)
35K → 23M
10:19 | 8:14/mi
24M
3:12:47
Rank: #13662 (+153)
23M → 24M
7:57 | 7:57/mi
40K· 24.85 mi
3:19:41
Rank: #13514 (+148)
24M → 40K
6:54 | 8:04/mi
25.2M
3:22:39
Rank: #13434 (+80)
40K → 25.2M
2:58 | 8:36/mi
Finish· 26.22 mi
3:30:14
Rank: #13280 (+154)
25.2M → Finish
7:35 | 7:26/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:51
Pace7:46 /mi
2nd Half
Distance13.11 mi
Time1:48:23
Pace8:16 /mi
📊Positive Split: 6.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:4623:247:3223:24
7:32
-
10K
6.21 mi11:16:4847:267:3824:02
7:44
+0:12
15K
9.32 mi11:40:531:11:317:4024:05
7:45
+0:01
20K
12.43 mi12:05:401:36:187:4524:47
7:59
+0:14
Half
13.11 mi12:11:131:41:517:465:33
8:08
+0:09
25K
15.53 mi12:30:482:01:267:4919:35
8:05
-0:03
30K
18.64 mi12:57:212:27:597:5626:33
8:33
+0:28
20M
20.00 mi13:08:422:39:207:5811:21
8:21
-0:12
21M
21.00 mi13:17:392:48:178:018:57
8:57
+0:36
35K
21.75 mi13:23:532:54:318:016:14
8:20
-0:37
23M
23.00 mi13:34:123:04:508:0210:19
8:14
-0:06
24M
24.00 mi13:42:093:12:478:027:57
7:57
-0:17
40K
24.85 mi13:49:033:19:418:026:54
8:04
+0:07
25.2M
25.20 mi13:52:013:22:398:032:58
8:36
+0:32
Finish
26.22 mi13:59:363:30:148:017:35
7:26
-1:10

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

7:26 /mi

Average Pace

8:01 /mi

Slowest Pace

8:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:19:06

38% of race

Time at Steady Pace

1:15:05

36% of race

Time at Slower Pace

56:03

27% of race

Average Pace: 8:01 /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 mi10:52:4623:247:3223:24
7:32
#12540
10K
6.21 mi11:16:4847:267:3824:02
7:44
#13348
15K
9.32 mi11:40:531:11:317:4024:05
7:45
#13519
20K
12.43 mi12:05:401:36:187:4524:47
7:59
#13796
Half
13.11 mi12:11:131:41:517:465:33
8:08
#13997
25K
15.53 mi12:30:482:01:267:4919:35
8:05
#14024
30K
18.64 mi12:57:212:27:597:5626:33
8:33
#14177
20M
20.00 mi13:08:422:39:207:5811:21
8:21
#14043
21M
21.00 mi13:17:392:48:178:018:57
8:57
#13954
35K
21.75 mi13:23:532:54:318:016:14
8:20
#13963
23M
23.00 mi13:34:123:04:508:0210:19
8:14
#13815
24M
24.00 mi13:42:093:12:478:027:57
7:57
#13662
40K
24.85 mi13:49:033:19:418:026:54
8:04
#13514
25.2M
25.20 mi13:52:013:22:398:032:58
8:36
#13434
Finish
26.22 mi13:59:363:30:148:017:35
7:26
#13280
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi125403087308713958(Top 49%)3989(Top 33%)3989(Top 73%)
10K6.21 mi3.10 mi13348-8083557-4703557-47014217(Top 50%)4088(Top 33%)4088(Top 75%)
15K9.32 mi3.11 mi13519-1713701-1443701-14413958(Top 49%)3989(Top 33%)3989(Top 73%)
20K12.43 mi3.11 mi13796-2773898-1973898-19714759(Top 52%)4510(Top 37%)4510(Top 82%)
Half13.11 mi0.68 mi13997-2014002-1044002-10416854(Top 59%)5657(Top 46%)5657(Top 103%)
25K15.53 mi2.42 mi14024-274060-584060-5814481(Top 51%)4472(Top 37%)4472(Top 82%)
30K18.64 mi3.11 mi14177-1534209-1494209-14915056(Top 53%)4931(Top 40%)4931(Top 90%)
20M20.00 mi1.36 mi14043+1344163+464163+4612867(Top 45%)3896(Top 32%)3896(Top 71%)
21M21.00 mi1.00 mi13954+894138+254138+2513231(Top 47%)4230(Top 35%)4230(Top 77%)
35K21.75 mi0.75 mi13963-94167-294167-2914492(Top 51%)4946(Top 40%)4946(Top 90%)
23M23.00 mi1.25 mi13815+1484122+454122+4511673(Top 41%)3571(Top 29%)3571(Top 65%)
24M24.00 mi1.00 mi13662+1534068+544068+5410928(Top 38%)3270(Top 27%)3270(Top 60%)
40K24.85 mi0.85 mi13514+1484006+624006+6210707(Top 38%)3276(Top 27%)3276(Top 60%)
25.2M25.20 mi0.35 mi13434+803975+313975+319545(Top 34%)2822(Top 23%)2822(Top 52%)
Finish26.22 mi1.02 mi13280+1543913+623913+628828(Top 31%)2466(Top 20%)2466(Top 45%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21stories
+97ft-345ft

Overall

13958

Females

3989

F18-39

3989

5K→10K

3.1 - 6.2 mi

Top 50%
×5stories
+79ft-138ft

Overall

14217

Females

4088

F18-39

4088

10K→15K

6.2 - 9.3 mi

Top 49%
×3stories
+67ft-78ft

Overall

13958

Females

3989

F18-39

3989

15K→20K

9.3 - 12.4 mi

Top 52%
×5stories
+106ft-86ft

Overall

14759

Females

4510

F18-39

4510

20K→Half

12.4 - 13.1 mi

Top 59%
×2stories
+19ft-37ft

Overall

16854

Females

5657

F18-39

5657

Half→25K

13.1 - 15.5 mi

Top 51%
×4stories
+66ft-88ft

Overall

14481

Females

4472

F18-39

4472

25K→30K

15.5 - 18.6 mi

Top 53%
×9stories
+181ft-148ft

Overall

15056

Females

4931

F18-39

4931

30K→20M

18.6 - 20.0 mi

Top 45%
×5stories
+64ft-50ft

Overall

12867

Females

3896

F18-39

3896

20M→21M

20.0 - 21.0 mi

Top 47%
×8stories
+106ft-24ft

Overall

13231

Females

4230

F18-39

4230

21M→35K

21.0 - 21.8 mi

Top 51%
×7stories
+17ft-86ft

Overall

14492

Females

4946

F18-39

4946

35K→23M

21.8 - 23.0 mi

Top 41%
×5stories
+23ft-63ft

Overall

11673

Females

3571

F18-39

3571

23M→24M

23.0 - 24.0 mi

Top 38%
×6stories
+12ft-82ft

Overall

10928

Females

3270

F18-39

3270

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10707

Females

3276

F18-39

3276

40K→25.2M

24.9 - 25.2 mi

Top 34%
×1story
+13ft-16ft

Overall

9545

Females

2822

F18-39

2822

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2stories
+22ft-21ft

Overall

8828

Females

2466

F18-39

2466

Passing Analysis

Category:
Athletes Passed
1875
Passed By
2615
Net Change
-740
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12540
5K → 10K65873-808#12540#13348
10K → 15K156327-171#13348#13519
15K → 20K122399-277#13519#13796
20K → Half3204-201#13796#13997
Half → 25K157184-27#13997#14024
25K → 30K218371-153#14024#14177
30K → 20M17945+134#14177#14043
20M → 21M14758+89#14043#13954
21M → 35K6170-9#13954#13963
35K → 23M19042+148#13963#13815
23M → 24M16815+153#13815#13662
24M → 40K16012+148#13662#13514
40K → 25.2M877+80#13514#13434
25.2M → Finish1628+154#13434#13280
TOTALS18752615-740
📊

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