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BOSTON MARATHON 2025

Kate Harris

Bib: 21876•F

UT

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 38%
Masters (Masters Women)
#0 / 6759
Top 24%
Division (F45-49)
#0 / 1813
Top 28%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:12
Rank: #14729
Start → 5K
24:12 | 7:47/mi
10K· 6.21 mi
48:47
Rank: #15259 (-530)
5K → 10K
24:35 | 7:55/mi
15K· 9.32 mi
1:13:28
Rank: #15353 (-94)
10K → 15K
24:41 | 7:57/mi
20K· 12.43 mi
1:38:31
Rank: #15353
15K → 20K
25:03 | 8:04/mi
Half· 13.11 mi
1:43:54
Rank: #15322 (+31)
20K → Half
5:23 | 7:53/mi
25K· 15.53 mi
2:03:23
Rank: #15107 (+215)
Half → 25K
19:29 | 8:02/mi
30K· 18.64 mi
2:29:14
Rank: #14789 (+318)
25K → 30K
25:51 | 8:19/mi
20M
2:40:54
Rank: #14710 (+79)
30K → 20M
11:40 | 8:35/mi
21M
2:50:20
Rank: #14751 (-41)
20M → 21M
9:26 | 9:26/mi
35K· 21.75 mi
2:56:34
Rank: #14707 (+44)
21M → 35K
6:14 | 8:20/mi
23M
3:07:16
Rank: #14617 (+90)
35K → 23M
10:42 | 8:33/mi
24M
3:15:53
Rank: #14630 (-13)
23M → 24M
8:37 | 8:37/mi
40K· 24.85 mi
3:23:30
Rank: #14646 (-16)
24M → 40K
7:37 | 8:54/mi
25.2M
3:26:55
Rank: #14676 (-30)
40K → 25.2M
3:25 | 9:54/mi
Finish· 26.22 mi
3:35:30
Rank: #14687 (-11)
25.2M → Finish
8:35 | 8:25/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:54
Pace7:56 /mi
2nd Half
Distance13.11 mi
Time1:51:36
Pace8:31 /mi
📊Positive Split: 7.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:1424:127:4724:12
7:47
-
10K
6.21 mi11:42:4948:477:5124:35
7:55
+0:08
15K
9.32 mi12:07:301:13:287:5324:41
7:57
+0:02
20K
12.43 mi12:32:331:38:317:5625:03
8:04
+0:07
Half
13.11 mi12:37:561:43:547:565:23
7:53
-0:11
25K
15.53 mi12:57:252:03:237:5719:29
8:02
+0:09
30K
18.64 mi13:23:162:29:148:0025:51
8:19
+0:17
20M
20.00 mi13:34:562:40:548:0311:40
8:35
+0:16
21M
21.00 mi13:44:222:50:208:079:26
9:26
+0:51
35K
21.75 mi13:50:362:56:348:076:14
8:20
-1:06
23M
23.00 mi14:01:183:07:168:0910:42
8:33
+0:13
24M
24.00 mi14:09:553:15:538:108:37
8:37
+0:04
40K
24.85 mi14:17:323:23:308:117:37
8:54
+0:17
25.2M
25.20 mi14:20:573:26:558:133:25
9:54
+1:00
Finish
26.22 mi14:29:323:35:308:148:35
8:25
-1:29

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

7:47 /mi

Average Pace

8:14 /mi

Slowest Pace

9:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:38:20

46% of race

Time at Steady Pace

1:36:42

45% of race

Time at Slower Pace

20:28

9% of race

Average Pace: 8:13 /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 mi11:18:1424:127:4724:12
7:47
#14729
10K
6.21 mi11:42:4948:477:5124:35
7:55
#15259
15K
9.32 mi12:07:301:13:287:5324:41
7:57
#15353
20K
12.43 mi12:32:331:38:317:5625:03
8:04
#15353
Half
13.11 mi12:37:561:43:547:565:23
7:53
#15322
25K
15.53 mi12:57:252:03:237:5719:29
8:02
#15107
30K
18.64 mi13:23:162:29:148:0025:51
8:19
#14789
20M
20.00 mi13:34:562:40:548:0311:40
8:35
#14710
21M
21.00 mi13:44:222:50:208:079:26
9:26
#14751
35K
21.75 mi13:50:362:56:348:076:14
8:20
#14707
23M
23.00 mi14:01:183:07:168:0910:42
8:33
#14617
24M
24.00 mi14:09:553:15:538:108:37
8:37
#14630
40K
24.85 mi14:17:323:23:308:117:37
8:54
#14646
25.2M
25.20 mi14:20:573:26:558:133:25
9:54
#14676
Finish
26.22 mi14:29:323:35:308:148:35
8:25
#14687
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi147294366436615630(Top 55%)4923(Top 40%)4923(Top 272%)
10K6.21 mi3.10 mi15259-5304698-3324698-33215759(Top 55%)4988(Top 41%)4988(Top 275%)
15K9.32 mi3.11 mi15353-944761-634761-6315630(Top 55%)4923(Top 40%)4923(Top 272%)
20K12.43 mi3.11 mi153534781-204781-2015378(Top 54%)4849(Top 40%)4849(Top 267%)
Half13.11 mi0.68 mi15322+314762+194762+1915075(Top 53%)4658(Top 38%)4658(Top 257%)
25K15.53 mi2.42 mi15107+2154667+954667+9514194(Top 50%)4307(Top 35%)4307(Top 238%)
30K18.64 mi3.11 mi14789+3184555+1124555+11213638(Top 48%)4167(Top 34%)4167(Top 230%)
20M20.00 mi1.36 mi14710+794535+204535+2014361(Top 51%)4701(Top 38%)4701(Top 259%)
21M21.00 mi1.00 mi14751-414580-454580-4515789(Top 56%)5592(Top 46%)5592(Top 308%)
35K21.75 mi0.75 mi14707+444571+94571+914505(Top 51%)4959(Top 41%)4959(Top 274%)
23M23.00 mi1.25 mi14617+904557+144557+1413612(Top 48%)4596(Top 38%)4596(Top 254%)
24M24.00 mi1.00 mi14630-134590-334590-3315268(Top 54%)5518(Top 45%)5518(Top 304%)
40K24.85 mi0.85 mi14646-164626-364626-3615811(Top 56%)5940(Top 49%)5940(Top 328%)
25.2M25.20 mi0.35 mi14676-304656-304656-3016612(Top 58%)6380(Top 52%)6380(Top 352%)
Finish26.22 mi1.02 mi14687-114693-374693-3715747(Top 55%)5879(Top 48%)5879(Top 324%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21stories
+97ft-345ft

Overall

15630

Females

4923

F45-49

4923

5K→10K

3.1 - 6.2 mi

Top 55%
×5stories
+79ft-138ft

Overall

15759

Females

4988

F45-49

4988

10K→15K

6.2 - 9.3 mi

Top 55%
×3stories
+67ft-78ft

Overall

15630

Females

4923

F45-49

4923

15K→20K

9.3 - 12.4 mi

Top 54%
×5stories
+106ft-86ft

Overall

15378

Females

4849

F45-49

4849

20K→Half

12.4 - 13.1 mi

Top 53%
×2stories
+19ft-37ft

Overall

15075

Females

4658

F45-49

4658

Half→25K

13.1 - 15.5 mi

Top 50%
×4stories
+66ft-88ft

Overall

14194

Females

4307

F45-49

4307

25K→30K

15.5 - 18.6 mi

Top 48%
×9stories
+181ft-148ft

Overall

13638

Females

4167

F45-49

4167

30K→20M

18.6 - 20.0 mi

Top 51%
×5stories
+64ft-50ft

Overall

14361

Females

4701

F45-49

4701

20M→21M

20.0 - 21.0 mi

Top 56%
×8stories
+106ft-24ft

Overall

15789

Females

5592

F45-49

5592

21M→35K

21.0 - 21.8 mi

Top 51%
×7stories
+17ft-86ft

Overall

14505

Females

4959

F45-49

4959

35K→23M

21.8 - 23.0 mi

Top 48%
×5stories
+23ft-63ft

Overall

13612

Females

4596

F45-49

4596

23M→24M

23.0 - 24.0 mi

Top 54%
×6stories
+12ft-82ft

Overall

15268

Females

5518

F45-49

5518

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

15811

Females

5940

F45-49

5940

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1story
+13ft-16ft

Overall

16612

Females

6380

F45-49

6380

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2stories
+22ft-21ft

Overall

15747

Females

5879

F45-49

5879

Passing Analysis

Category:
Athletes Passed
1967
Passed By
1925
Net Change
+42
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14729
5K → 10K123653-530#14729#15259
10K → 15K175269-94#15259#15353
15K → 20K2082080#15353#15353
20K → Half5322+31#15353#15322
Half → 25K27560+215#15322#15107
25K → 30K41496+318#15107#14789
30K → 20M16990+79#14789#14710
20M → 21M95136-41#14710#14751
21M → 35K8440+44#14751#14707
35K → 23M14050+90#14707#14617
23M → 24M6679-13#14617#14630
24M → 40K7187-16#14630#14646
40K → 25.2M2555-30#14646#14676
25.2M → Finish6980-11#14676#14687
TOTALS19671925+42
📊

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