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BOSTON MARATHON 2025

Katherine Keck

Bib: 16254•F

DE

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
24:31
Rank: #15622
Start → 5K
7:53/mi
24:31 split
10K· 6.21 mi
49:31
Rank: #16262 (-640)
5K → 10K
8:03/mi
25:00 split
15K· 9.32 mi
1:16:07
Rank: #17543 (-1281)
10K → 15K
8:34/mi
26:36 split
20K· 12.43 mi
1:47:03
Rank: #19950 (-2407)
15K → 20K
9:57/mi
30:56 split
Half· 13.11 mi
1:52:49
Rank: #19898 (+52)
20K → Half
8:27/mi
5:46 split
25K· 15.53 mi
2:17:54
Rank: #20986 (-1088)
Half → 25K
10:21/mi
25:05 split
30K· 18.64 mi
2:48:04
Rank: #20945 (+41)
25K → 30K
9:43/mi
30:10 split
20M
3:00:27
Rank: #20654 (+291)
30K → 20M
9:07/mi
12:23 split
21M
3:11:37
Rank: #20750 (-96)
20M → 21M
11:10/mi
11:10 split
35K· 21.75 mi
3:18:35
Rank: #20712 (+38)
21M → 35K
9:19/mi
6:58 split
23M
3:33:33
Rank: #21157 (-445)
35K → 23M
11:57/mi
14:58 split
24M
3:42:07
Rank: #20951 (+206)
23M → 24M
8:34/mi
8:34 split
40K· 24.85 mi
3:49:39
Rank: #20777 (+174)
24M → 40K
8:49/mi
7:32 split
25.2M
3:52:57
Rank: #20703 (+74)
40K → 25.2M
9:34/mi
3:18 split
Finish· 26.22 mi
4:01:29
Rank: #20567 (+136)
25.2M → Finish
8:22/mi
8:32 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:49
Pace8:36 /mi
2nd Half
Distance13.11 mi
Time2:08:40
Pace9:49 /mi
📊Positive Split: 14.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:58:3324:317:5324:31
7:53
-
10K
6.21 mi11:23:3349:317:5825:00
8:03
+0:10
15K
9.32 mi11:50:091:16:078:1026:36
8:34
+0:31
20K
12.43 mi12:21:051:47:038:3730:56
9:57
+1:23
Half
13.11 mi12:26:511:52:498:365:46
8:27
-1:30
25K
15.53 mi12:51:562:17:548:5325:05
10:21
+1:54
30K
18.64 mi13:22:062:48:049:0130:10
9:43
-0:38
20M
20.00 mi13:34:293:00:279:0112:23
9:07
-0:36
21M
21.00 mi13:45:393:11:379:0711:10
11:10
+2:03
35K
21.75 mi13:52:373:18:359:086:58
9:19
-1:51
23M
23.00 mi14:07:353:33:339:1714:58
11:57
+2:38
24M
24.00 mi14:16:093:42:079:158:34
8:34
-3:23
40K
24.85 mi14:23:413:49:399:147:32
8:49
+0:15
25.2M
25.20 mi14:26:593:52:579:153:18
9:34
+0:45
Finish
26.22 mi14:35:314:01:299:138:32
8:22
-1:12

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

7:53 /mi

Average Pace

9:13 /mi

Slowest Pace

11:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:03:49

26% of race

Time at Steady Pace

1:05:21

27% of race

Time at Slower Pace

1:52:19

47% of race

Average Pace: 9:13 /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 mi10:58:3324:317:5324:31
7:53
#15622
10K
6.21 mi11:23:3349:317:5825:00
8:03
#16262
15K
9.32 mi11:50:091:16:078:1026:36
8:34
#17543
20K
12.43 mi12:21:051:47:038:3730:56
9:57
#19950
Half
13.11 mi12:26:511:52:498:365:46
8:27
#19898
25K
15.53 mi12:51:562:17:548:5325:05
10:21
#20986
30K
18.64 mi13:22:062:48:049:0130:10
9:43
#20945
20M
20.00 mi13:34:293:00:279:0112:23
9:07
#20654
21M
21.00 mi13:45:393:11:379:0711:10
11:10
#20750
35K
21.75 mi13:52:373:18:359:086:58
9:19
#20712
23M
23.00 mi14:07:353:33:339:1714:58
11:57
#21157
24M
24.00 mi14:16:093:42:079:158:34
8:34
#20951
40K
24.85 mi14:23:413:49:399:147:32
8:49
#20777
25.2M
25.20 mi14:26:593:52:579:153:18
9:34
#20703
Finish
26.22 mi14:35:314:01:299:138:32
8:22
#20567
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi156224913491319718(Top 69%)7288(Top 60%)7288(Top 133%)
10K6.21 mi3.10 mi16262-6405307-3945307-39416838(Top 59%)5615(Top 46%)5615(Top 103%)
15K9.32 mi3.11 mi17543-12816037-7306037-73019718(Top 69%)7288(Top 60%)7288(Top 133%)
20K12.43 mi3.11 mi19950-24077445-14087445-140824139(Top 85%)9788(Top 80%)9788(Top 179%)
Half13.11 mi0.68 mi19898+527415+307415+3018977(Top 67%)6900(Top 56%)6900(Top 126%)
25K15.53 mi2.42 mi20986-10888029-6148029-61424061(Top 85%)9775(Top 80%)9775(Top 179%)
30K18.64 mi3.11 mi20945+418060-318060-3120724(Top 73%)8067(Top 66%)8067(Top 148%)
20M20.00 mi1.36 mi20654+2917920+1407920+14017406(Top 61%)6379(Top 52%)6379(Top 117%)
21M21.00 mi1.00 mi20750-967984-647984-6421816(Top 77%)8873(Top 73%)8873(Top 162%)
35K21.75 mi0.75 mi20712+387978+67978+619651(Top 69%)7799(Top 64%)7799(Top 143%)
23M23.00 mi1.25 mi21157-4458247-2698247-26925057(Top 88%)10632(Top 87%)10632(Top 194%)
24M24.00 mi1.00 mi20951+2068150+978150+9714993(Top 53%)5388(Top 44%)5388(Top 99%)
40K24.85 mi0.85 mi20777+1748075+758075+7515305(Top 54%)5707(Top 47%)5707(Top 104%)
25.2M25.20 mi0.35 mi20703+748039+368039+3615061(Top 53%)5608(Top 46%)5608(Top 103%)
Finish26.22 mi1.02 mi20567+1367978+617978+6115451(Top 54%)5740(Top 47%)5740(Top 105%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21stories
+97ft-345ft

Overall

19718

Females

7288

F18-39

7288

5K→10K

3.1 - 6.2 mi

Top 59%
×5stories
+79ft-138ft

Overall

16838

Females

5615

F18-39

5615

10K→15K

6.2 - 9.3 mi

Top 69%
×3stories
+67ft-78ft

Overall

19718

Females

7288

F18-39

7288

15K→20K

9.3 - 12.4 mi

Top 85%
×5stories
+106ft-86ft

Overall

24139

Females

9788

F18-39

9788

20K→Half

12.4 - 13.1 mi

Top 67%
×2stories
+19ft-37ft

Overall

18977

Females

6900

F18-39

6900

Half→25K

13.1 - 15.5 mi

Top 85%
×4stories
+66ft-88ft

Overall

24061

Females

9775

F18-39

9775

25K→30K

15.5 - 18.6 mi

Top 73%
×9stories
+181ft-148ft

Overall

20724

Females

8067

F18-39

8067

30K→20M

18.6 - 20.0 mi

Top 61%
×5stories
+64ft-50ft

Overall

17406

Females

6379

F18-39

6379

20M→21M

20.0 - 21.0 mi

Top 77%
×8stories
+106ft-24ft

Overall

21816

Females

8873

F18-39

8873

21M→35K

21.0 - 21.8 mi

Top 69%
×7stories
+17ft-86ft

Overall

19651

Females

7799

F18-39

7799

35K→23M

21.8 - 23.0 mi

Top 88%
×5stories
+23ft-63ft

Overall

25057

Females

10632

F18-39

10632

23M→24M

23.0 - 24.0 mi

Top 53%
×6stories
+12ft-82ft

Overall

14993

Females

5388

F18-39

5388

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

15305

Females

5707

F18-39

5707

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

15061

Females

5608

F18-39

5608

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2stories
+22ft-21ft

Overall

15451

Females

5740

F18-39

5740

Passing Analysis

Category:
Athletes Passed
1521
Passed By
6466
Net Change
-4945
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15622
5K → 10K120760-640#15622#16262
10K → 15K311312-1281#16262#17543
15K → 20K52412-2407#17543#19950
20K → Half6210+52#19950#19898
Half → 25K201108-1088#19898#20986
25K → 30K228187+41#20986#20945
30K → 20M2998+291#20945#20654
20M → 21M60156-96#20654#20750
21M → 35K7537+38#20750#20712
35K → 23M24469-445#20712#21157
23M → 24M2082+206#21157#20951
24M → 40K1762+174#20951#20777
40K → 25.2M740+74#20777#20703
25.2M → Finish1393+136#20703#20567
TOTALS15216466-4945
📊

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