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BOSTON MARATHON 2025

Kathryn Keim

Bib: 15674•F

NY

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 29%
Gender (Female)
#0 / 12228
Top 12%
Division (F18-39)
#0 / 5469
Top 22%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:05
Rank: #8728
Start → 5K
22:05 | 7:06/mi
10K· 6.21 mi
44:12
Rank: #8739 (-11)
5K → 10K
22:07 | 7:07/mi
15K· 9.32 mi
1:06:28
Rank: #8758 (-19)
10K → 15K
22:16 | 7:10/mi
20K· 12.43 mi
1:29:00
Rank: #8656 (+102)
15K → 20K
22:32 | 7:15/mi
Half· 13.11 mi
1:33:53
Rank: #8649 (+7)
20K → Half
4:53 | 7:09/mi
25K· 15.53 mi
1:51:33
Rank: #8523 (+126)
Half → 25K
17:40 | 7:17/mi
30K· 18.64 mi
2:15:36
Rank: #8628 (-105)
25K → 30K
24:03 | 7:44/mi
20M
2:26:18
Rank: #8659 (-31)
30K → 20M
10:42 | 7:52/mi
21M
2:34:33
Rank: #8633 (+26)
20M → 21M
8:15 | 8:15/mi
35K· 21.75 mi
2:40:03
Rank: #8561 (+72)
21M → 35K
5:30 | 7:21/mi
23M
2:49:45
Rank: #8461 (+100)
35K → 23M
9:42 | 7:45/mi
24M
2:57:15
Rank: #8376 (+85)
23M → 24M
7:30 | 7:30/mi
40K· 24.85 mi
3:03:49
Rank: #8319 (+57)
24M → 40K
6:34 | 7:41/mi
25.2M
3:06:43
Rank: #8306 (+13)
40K → 25.2M
2:54 | 8:25/mi
Finish· 26.22 mi
3:13:59
Rank: #8214 (+92)
25.2M → Finish
7:16 | 7:08/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:33:53
Pace7:10 /mi
2nd Half
Distance13.11 mi
Time1:40:06
Pace7:38 /mi
📊Positive Split: 6.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:2422:057:0622:05
7:06
-
10K
6.21 mi11:15:3144:127:0722:07
7:07
+0:01
15K
9.32 mi11:37:471:06:287:0822:16
7:10
+0:03
20K
12.43 mi12:00:191:29:007:1022:32
7:15
+0:05
Half
13.11 mi12:05:121:33:537:104:53
7:09
-0:06
25K
15.53 mi12:22:521:51:337:1117:40
7:17
+0:08
30K
18.64 mi12:46:552:15:367:1624:03
7:44
+0:27
20M
20.00 mi12:57:372:26:187:1910:42
7:52
+0:08
21M
21.00 mi13:05:522:34:337:228:15
8:15
+0:23
35K
21.75 mi13:11:222:40:037:225:30
7:21
-0:54
23M
23.00 mi13:21:042:49:457:239:42
7:45
+0:24
24M
24.00 mi13:28:342:57:157:237:30
7:30
-0:15
40K
24.85 mi13:35:083:03:497:246:34
7:41
+0:11
25.2M
25.20 mi13:38:023:06:437:252:54
8:25
+0:44
Finish
26.22 mi13:45:183:13:597:247:16
7:08
-1:17

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

7:06 /mi

Average Pace

7:24 /mi

Slowest Pace

8:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:52:08

89% of race

Time at Steady Pace

18:57

10% of race

Time at Slower Pace

2:54

1% of race

Average Pace: 7:24 /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 mi10:53:2422:057:0622:05
7:06
#8728
10K
6.21 mi11:15:3144:127:0722:07
7:07
#8739
15K
9.32 mi11:37:471:06:287:0822:16
7:10
#8758
20K
12.43 mi12:00:191:29:007:1022:32
7:15
#8656
Half
13.11 mi12:05:121:33:537:104:53
7:09
#8649
25K
15.53 mi12:22:521:51:337:1117:40
7:17
#8523
30K
18.64 mi12:46:552:15:367:1624:03
7:44
#8628
20M
20.00 mi12:57:372:26:187:1910:42
7:52
#8659
21M
21.00 mi13:05:522:34:337:228:15
8:15
#8633
35K
21.75 mi13:11:222:40:037:225:30
7:21
#8561
23M
23.00 mi13:21:042:49:457:239:42
7:45
#8461
24M
24.00 mi13:28:342:57:157:237:30
7:30
#8376
40K
24.85 mi13:35:083:03:497:246:34
7:41
#8319
25.2M
25.20 mi13:38:023:06:437:252:54
8:25
#8306
Finish
26.22 mi13:45:183:13:597:247:16
7:08
#8214
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8728125512558851(Top 31%)1363(Top 11%)1363(Top 25%)
10K6.21 mi3.10 mi8739-111272-171272-178843(Top 31%)1316(Top 11%)1316(Top 24%)
15K9.32 mi3.11 mi8758-191299-271299-278851(Top 31%)1363(Top 11%)1363(Top 25%)
20K12.43 mi3.11 mi8656+1021274+251274+258661(Top 30%)1379(Top 11%)1379(Top 25%)
Half13.11 mi0.68 mi8649+71284-101284-108788(Top 31%)1400(Top 11%)1400(Top 26%)
25K15.53 mi2.42 mi8523+1261253+311253+318283(Top 29%)1332(Top 11%)1332(Top 24%)
30K18.64 mi3.11 mi8628-1051349-961349-969490(Top 33%)2039(Top 17%)2039(Top 37%)
20M20.00 mi1.36 mi8659-311405-561405-569539(Top 34%)2228(Top 18%)2228(Top 41%)
21M21.00 mi1.00 mi8633+261424-191424-198907(Top 31%)2112(Top 17%)2112(Top 39%)
35K21.75 mi0.75 mi8561+721412+121412+127601(Top 27%)1530(Top 13%)1530(Top 28%)
23M23.00 mi1.25 mi8461+1001422-101422-108223(Top 29%)1904(Top 16%)1904(Top 35%)
24M24.00 mi1.00 mi8376+851417+51417+57709(Top 27%)1742(Top 14%)1742(Top 32%)
40K24.85 mi0.85 mi8319+571429-121429-127974(Top 28%)1966(Top 16%)1966(Top 36%)
25.2M25.20 mi0.35 mi8306+131443-141443-148295(Top 29%)2175(Top 18%)2175(Top 40%)
Finish26.22 mi1.02 mi8214+921442+11442+16608(Top 23%)1494(Top 12%)1494(Top 27%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21stories
+97ft-345ft

Overall

8851

Females

1363

F18-39

1363

5K→10K

3.1 - 6.2 mi

Top 31%
×5stories
+79ft-138ft

Overall

8843

Females

1316

F18-39

1316

10K→15K

6.2 - 9.3 mi

Top 31%
×3stories
+67ft-78ft

Overall

8851

Females

1363

F18-39

1363

15K→20K

9.3 - 12.4 mi

Top 30%
×5stories
+106ft-86ft

Overall

8661

Females

1379

F18-39

1379

20K→Half

12.4 - 13.1 mi

Top 31%
×2stories
+19ft-37ft

Overall

8788

Females

1400

F18-39

1400

Half→25K

13.1 - 15.5 mi

Top 29%
×4stories
+66ft-88ft

Overall

8283

Females

1332

F18-39

1332

25K→30K

15.5 - 18.6 mi

Top 33%
×9stories
+181ft-148ft

Overall

9490

Females

2039

F18-39

2039

30K→20M

18.6 - 20.0 mi

Top 34%
×5stories
+64ft-50ft

Overall

9539

Females

2228

F18-39

2228

20M→21M

20.0 - 21.0 mi

Top 31%
×8stories
+106ft-24ft

Overall

8907

Females

2112

F18-39

2112

21M→35K

21.0 - 21.8 mi

Top 27%
×7stories
+17ft-86ft

Overall

7601

Females

1530

F18-39

1530

35K→23M

21.8 - 23.0 mi

Top 29%
×5stories
+23ft-63ft

Overall

8223

Females

1904

F18-39

1904

23M→24M

23.0 - 24.0 mi

Top 27%
×6stories
+12ft-82ft

Overall

7709

Females

1742

F18-39

1742

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7974

Females

1966

F18-39

1966

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

8295

Females

2175

F18-39

2175

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2stories
+22ft-21ft

Overall

6608

Females

1494

F18-39

1494

Passing Analysis

Category:
Athletes Passed
1801
Passed By
1287
Net Change
+514
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8728
5K → 10K195206-11#8728#8739
10K → 15K154173-19#8739#8758
15K → 20K229127+102#8758#8656
20K → Half3427+7#8656#8649
Half → 25K19064+126#8649#8523
25K → 30K175280-105#8523#8628
30K → 20M86117-31#8628#8659
20M → 21M10781+26#8659#8633
21M → 35K9826+72#8633#8561
35K → 23M15757+100#8561#8461
23M → 24M11631+85#8461#8376
24M → 40K10346+57#8376#8319
40K → 25.2M3926+13#8319#8306
25.2M → Finish11826+92#8306#8214
TOTALS18011287+514
📊

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