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BOSTON MARATHON 2025

Kat Gross

Bib: 32156•F

KY

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

Start
0:00:00
Race begins
5K· 3.11 mi
32:20
Rank: #26548
Start → 5K
32:20 | 10:24/mi
10K· 6.21 mi
1:04:45
Rank: #26331 (+217)
5K → 10K
32:25 | 10:26/mi
15K· 9.32 mi
1:36:52
Rank: #26070 (+261)
10K → 15K
32:07 | 10:20/mi
20K· 12.43 mi
2:09:08
Rank: #25777 (+293)
15K → 20K
32:16 | 10:23/mi
Half· 13.11 mi
2:16:10
Rank: #25754 (+23)
20K → Half
7:02 | 10:19/mi
25K· 15.53 mi
2:42:11
Rank: #25595 (+159)
Half → 25K
26:01 | 10:44/mi
30K· 18.64 mi
3:17:11
Rank: #25371 (+224)
25K → 30K
35:00 | 11:16/mi
20M
3:32:53
Rank: #25325 (+46)
30K → 20M
15:42 | 11:33/mi
21M
3:44:46
Rank: #25241 (+84)
20M → 21M
11:53 | 11:53/mi
35K· 21.75 mi
3:53:19
Rank: #25226 (+15)
21M → 35K
8:33 | 11:26/mi
23M
4:07:50
Rank: #25179 (+47)
35K → 23M
14:31 | 11:36/mi
24M
4:19:03
Rank: #25155 (+24)
23M → 24M
11:13 | 11:13/mi
40K· 24.85 mi
4:28:56
Rank: #25138 (+17)
24M → 40K
9:53 | 11:34/mi
25.2M
4:33:07
Rank: #25120 (+18)
40K → 25.2M
4:11 | 12:08/mi
Finish· 26.22 mi
4:43:21
Rank: #25067 (+53)
25.2M → Finish
10:14 | 10:03/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:16:10
Pace10:23 /mi
2nd Half
Distance13.11 mi
Time2:27:11
Pace11:14 /mi
📊Positive Split: 8.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:57:1032:2010:2432:20
10:24
-
10K
6.21 mi12:29:351:04:4510:2532:25
10:26
+0:02
15K
9.32 mi13:01:421:36:5210:2432:07
10:20
-0:06
20K
12.43 mi13:33:582:09:0810:2332:16
10:23
+0:03
Half
13.11 mi13:41:002:16:1010:237:02
10:19
-0:04
25K
15.53 mi14:07:012:42:1110:2626:01
10:44
+0:25
30K
18.64 mi14:42:013:17:1110:3535:00
11:16
+0:32
20M
20.00 mi14:57:433:32:5310:3915:42
11:33
+0:17
21M
21.00 mi15:09:363:44:4610:4211:53
11:53
+0:20
35K
21.75 mi15:18:093:53:1910:448:33
11:26
-0:27
23M
23.00 mi15:32:404:07:5010:4714:31
11:36
+0:10
24M
24.00 mi15:43:534:19:0310:4811:13
11:13
-0:23
40K
24.85 mi15:53:464:28:5610:499:53
11:34
+0:21
25.2M
25.20 mi15:57:574:33:0710:504:11
12:08
+0:34
Finish
26.22 mi16:08:114:43:2110:4910:14
10:03
-2:05

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

10:03 /mi

Average Pace

10:49 /mi

Slowest Pace

12:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:52:25

61% of race

Time at Steady Pace

54:46

19% of race

Time at Slower Pace

56:10

20% of race

Average Pace: 10:48 /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 mi11:57:1032:2010:2432:20
10:24
#26548
10K
6.21 mi12:29:351:04:4510:2532:25
10:26
#26331
15K
9.32 mi13:01:421:36:5210:2432:07
10:20
#26070
20K
12.43 mi13:33:582:09:0810:2332:16
10:23
#25777
Half
13.11 mi13:41:002:16:1010:237:02
10:19
#25754
25K
15.53 mi14:07:012:42:1110:2626:01
10:44
#25595
30K
18.64 mi14:42:013:17:1110:3535:00
11:16
#25371
20M
20.00 mi14:57:433:32:5310:3915:42
11:33
#25325
21M
21.00 mi15:09:363:44:4610:4211:53
11:53
#25241
35K
21.75 mi15:18:093:53:1910:448:33
11:26
#25226
23M
23.00 mi15:32:404:07:5010:4714:31
11:36
#25179
24M
24.00 mi15:43:534:19:0310:4811:13
11:13
#25155
40K
24.85 mi15:53:464:28:5610:499:53
11:34
#25138
25.2M
25.20 mi15:57:574:33:0710:504:11
12:08
#25120
Finish
26.22 mi16:08:114:43:2110:4910:14
10:03
#25067
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26548110671106725653(Top 90%)10589(Top 87%)10589(Top 194%)
10K6.21 mi3.10 mi26331+21710951+11610951+11626152(Top 92%)10879(Top 89%)10879(Top 199%)
15K9.32 mi3.11 mi26070+26110818+13310818+13325653(Top 90%)10589(Top 87%)10589(Top 194%)
20K12.43 mi3.11 mi25777+29310662+15610662+15624985(Top 88%)10250(Top 84%)10250(Top 187%)
Half13.11 mi0.68 mi25754+2310642+2010642+2025438(Top 90%)10510(Top 86%)10510(Top 192%)
25K15.53 mi2.42 mi25595+15910569+7310569+7324762(Top 87%)10162(Top 83%)10162(Top 186%)
30K18.64 mi3.11 mi25371+22410488+8110488+8124490(Top 86%)10126(Top 83%)10126(Top 185%)
20M20.00 mi1.36 mi25325+4610482+610482+624628(Top 87%)10281(Top 84%)10281(Top 188%)
21M21.00 mi1.00 mi25241+8410445+3710445+3723370(Top 82%)9698(Top 79%)9698(Top 177%)
35K21.75 mi0.75 mi25226+1510442+310442+324964(Top 88%)10568(Top 86%)10568(Top 193%)
23M23.00 mi1.25 mi25179+4710433+910433+924394(Top 86%)10295(Top 84%)10295(Top 188%)
24M24.00 mi1.00 mi25155+2410423+1010423+1024402(Top 86%)10327(Top 84%)10327(Top 189%)
40K24.85 mi0.85 mi25138+1710422+110422+124221(Top 85%)10281(Top 84%)10281(Top 188%)
25.2M25.20 mi0.35 mi25120+1810417+510417+523447(Top 83%)9893(Top 81%)9893(Top 181%)
Finish26.22 mi1.02 mi25067+5310396+2110396+2123039(Top 81%)9687(Top 79%)9687(Top 177%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21stories
+97ft-345ft

Overall

25653

Females

10589

F18-39

10589

5K→10K

3.1 - 6.2 mi

Top 92%
×5stories
+79ft-138ft

Overall

26152

Females

10879

F18-39

10879

10K→15K

6.2 - 9.3 mi

Top 90%
×3stories
+67ft-78ft

Overall

25653

Females

10589

F18-39

10589

15K→20K

9.3 - 12.4 mi

Top 88%
×5stories
+106ft-86ft

Overall

24985

Females

10250

F18-39

10250

20K→Half

12.4 - 13.1 mi

Top 90%
×2stories
+19ft-37ft

Overall

25438

Females

10510

F18-39

10510

Half→25K

13.1 - 15.5 mi

Top 87%
×4stories
+66ft-88ft

Overall

24762

Females

10162

F18-39

10162

25K→30K

15.5 - 18.6 mi

Top 86%
×9stories
+181ft-148ft

Overall

24490

Females

10126

F18-39

10126

30K→20M

18.6 - 20.0 mi

Top 87%
×5stories
+64ft-50ft

Overall

24628

Females

10281

F18-39

10281

20M→21M

20.0 - 21.0 mi

Top 82%
×8stories
+106ft-24ft

Overall

23370

Females

9698

F18-39

9698

21M→35K

21.0 - 21.8 mi

Top 88%
×7stories
+17ft-86ft

Overall

24964

Females

10568

F18-39

10568

35K→23M

21.8 - 23.0 mi

Top 86%
×5stories
+23ft-63ft

Overall

24394

Females

10295

F18-39

10295

23M→24M

23.0 - 24.0 mi

Top 86%
×6stories
+12ft-82ft

Overall

24402

Females

10327

F18-39

10327

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

24221

Females

10281

F18-39

10281

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

23447

Females

9893

F18-39

9893

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2stories
+22ft-21ft

Overall

23039

Females

9687

F18-39

9687

Passing Analysis

Category:
Athletes Passed
1785
Passed By
304
Net Change
+1481
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26548
5K → 10K30487+217#26548#26331
10K → 15K28221+261#26331#26070
15K → 20K30512+293#26070#25777
20K → Half307+23#25777#25754
Half → 25K19233+159#25754#25595
25K → 30K25026+224#25595#25371
30K → 20M7529+46#25371#25325
20M → 21M928+84#25325#25241
21M → 35K2914+15#25241#25226
35K → 23M6821+47#25226#25179
23M → 24M4016+24#25179#25155
24M → 40K3720+17#25155#25138
40K → 25.2M202+18#25138#25120
25.2M → Finish618+53#25120#25067
TOTALS1785304+1481
📊

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