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BOSTON MARATHON 2025

Kasey Kuker

Bib: 8374•F

MN

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 48%
Gender (Female)
#0 / 12228
Top 33%
Masters (Masters Women)
#0 / 6759
Top 18%
Division (F40-44)
#0 / 1718
Top 38%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:45
Rank: #10610
Start → 5K
22:45 | 7:19/mi
10K· 6.21 mi
46:10
Rank: #11532 (-922)
5K → 10K
23:25 | 7:32/mi
15K· 9.32 mi
1:10:07
Rank: #12193 (-661)
10K → 15K
23:57 | 7:43/mi
20K· 12.43 mi
1:34:35
Rank: #12586 (-393)
15K → 20K
24:28 | 7:53/mi
Half· 13.11 mi
1:39:57
Rank: #12701 (-115)
20K → Half
5:22 | 7:52/mi
25K· 15.53 mi
1:59:18
Rank: #12855 (-154)
Half → 25K
19:21 | 7:59/mi
30K· 18.64 mi
2:25:38
Rank: #13201 (-346)
25K → 30K
26:20 | 8:29/mi
20M
2:37:23
Rank: #13284 (-83)
30K → 20M
11:45 | 8:39/mi
21M
2:47:43
Rank: #13758 (-474)
20M → 21M
10:20 | 10:20/mi
35K· 21.75 mi
2:53:41
Rank: #13675 (+83)
21M → 35K
5:58 | 7:59/mi
23M
3:04:27
Rank: #13658 (+17)
35K → 23M
10:46 | 8:36/mi
24M
3:12:33
Rank: #13573 (+85)
23M → 24M
8:06 | 8:06/mi
40K· 24.85 mi
3:19:32
Rank: #13468 (+105)
24M → 40K
6:59 | 8:10/mi
25.2M
3:23:03
Rank: #13567 (-99)
40K → 25.2M
3:31 | 10:12/mi
Finish· 26.22 mi
3:31:15
Rank: #13550 (+17)
25.2M → Finish
8:12 | 8:03/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:57
Pace7:37 /mi
2nd Half
Distance13.11 mi
Time1:51:18
Pace8:29 /mi
📊Positive Split: 11.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:30:1722:457:1922:45
7:19
-
10K
6.21 mi10:53:4246:107:2623:25
7:32
+0:13
15K
9.32 mi11:17:391:10:077:3123:57
7:43
+0:11
20K
12.43 mi11:42:071:34:357:3724:28
7:53
+0:10
Half
13.11 mi11:47:291:39:577:375:22
7:52
-0:01
25K
15.53 mi12:06:501:59:187:4119:21
7:59
+0:07
30K
18.64 mi12:33:102:25:387:4926:20
8:29
+0:30
20M
20.00 mi12:44:552:37:237:5211:45
8:39
+0:10
21M
21.00 mi12:55:152:47:437:5910:20
10:20
+1:41
35K
21.75 mi13:01:132:53:417:595:58
7:59
-2:21
23M
23.00 mi13:11:593:04:278:0110:46
8:36
+0:37
24M
24.00 mi13:20:053:12:338:018:06
8:06
-0:30
40K
24.85 mi13:27:043:19:328:026:59
8:10
+0:04
25.2M
25.20 mi13:30:353:23:038:033:31
10:12
+2:02
Finish
26.22 mi13:38:473:31:158:048:12
8:03
-2:09

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

7:19 /mi

Average Pace

8:04 /mi

Slowest Pace

10:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

46:10

22% of race

Time at Steady Pace

1:42:23

48% of race

Time at Slower Pace

1:02:42

30% of race

Average Pace: 8:03 /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 mi10:30:1722:457:1922:45
7:19
#10610
10K
6.21 mi10:53:4246:107:2623:25
7:32
#11532
15K
9.32 mi11:17:391:10:077:3123:57
7:43
#12193
20K
12.43 mi11:42:071:34:357:3724:28
7:53
#12586
Half
13.11 mi11:47:291:39:577:375:22
7:52
#12701
25K
15.53 mi12:06:501:59:187:4119:21
7:59
#12855
30K
18.64 mi12:33:102:25:387:4926:20
8:29
#13201
20M
20.00 mi12:44:552:37:237:5211:45
8:39
#13284
21M
21.00 mi12:55:152:47:437:5910:20
10:20
#13758
35K
21.75 mi13:01:132:53:417:595:58
7:59
#13675
23M
23.00 mi13:11:593:04:278:0110:46
8:36
#13658
24M
24.00 mi13:20:053:12:338:018:06
8:06
#13573
40K
24.85 mi13:27:043:19:328:026:59
8:10
#13468
25.2M
25.20 mi13:30:353:23:038:033:31
10:12
#13567
Finish
26.22 mi13:38:473:31:158:048:12
8:03
#13550
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi106102100210013606(Top 48%)3792(Top 31%)3792(Top 221%)
10K6.21 mi3.10 mi11532-9222576-4762576-47612457(Top 44%)3070(Top 25%)3070(Top 179%)
15K9.32 mi3.11 mi12193-6612944-3682944-36813606(Top 48%)3792(Top 31%)3792(Top 221%)
20K12.43 mi3.11 mi12586-3933195-2513195-25113898(Top 49%)4035(Top 33%)4035(Top 235%)
Half13.11 mi0.68 mi12701-1153276-813276-8114834(Top 52%)4512(Top 37%)4512(Top 263%)
25K15.53 mi2.42 mi12855-1543392-1163392-11613753(Top 48%)4079(Top 33%)4079(Top 237%)
30K18.64 mi3.11 mi13201-3463671-2793671-27914604(Top 51%)4681(Top 38%)4681(Top 272%)
20M20.00 mi1.36 mi13284-833740-693740-6914704(Top 52%)4879(Top 40%)4879(Top 284%)
21M21.00 mi1.00 mi13758-4744035-2954035-29519489(Top 69%)7606(Top 62%)7606(Top 443%)
35K21.75 mi0.75 mi13675+834006+294006+2912161(Top 43%)3735(Top 31%)3735(Top 217%)
23M23.00 mi1.25 mi13658+174042-364042-3613929(Top 49%)4759(Top 39%)4759(Top 277%)
24M24.00 mi1.00 mi13573+854021+214021+2111932(Top 42%)3771(Top 31%)3771(Top 219%)
40K24.85 mi0.85 mi13468+1053977+443977+4411402(Top 40%)3611(Top 30%)3611(Top 210%)
25.2M25.20 mi0.35 mi13567-994051-744051-7417878(Top 63%)7056(Top 58%)7056(Top 411%)
Finish26.22 mi1.02 mi13550+174066-154066-1513214(Top 47%)4554(Top 37%)4554(Top 265%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21stories
+97ft-345ft

Overall

13606

Females

3792

F40-44

3792

5K→10K

3.1 - 6.2 mi

Top 44%
×5stories
+79ft-138ft

Overall

12457

Females

3070

F40-44

3070

10K→15K

6.2 - 9.3 mi

Top 48%
×3stories
+67ft-78ft

Overall

13606

Females

3792

F40-44

3792

15K→20K

9.3 - 12.4 mi

Top 49%
×5stories
+106ft-86ft

Overall

13898

Females

4035

F40-44

4035

20K→Half

12.4 - 13.1 mi

Top 52%
×2stories
+19ft-37ft

Overall

14834

Females

4512

F40-44

4512

Half→25K

13.1 - 15.5 mi

Top 48%
×4stories
+66ft-88ft

Overall

13753

Females

4079

F40-44

4079

25K→30K

15.5 - 18.6 mi

Top 51%
×9stories
+181ft-148ft

Overall

14604

Females

4681

F40-44

4681

30K→20M

18.6 - 20.0 mi

Top 52%
×5stories
+64ft-50ft

Overall

14704

Females

4879

F40-44

4879

20M→21M

20.0 - 21.0 mi

Top 69%
×8stories
+106ft-24ft

Overall

19489

Females

7606

F40-44

7606

21M→35K

21.0 - 21.8 mi

Top 43%
×7stories
+17ft-86ft

Overall

12161

Females

3735

F40-44

3735

35K→23M

21.8 - 23.0 mi

Top 49%
×5stories
+23ft-63ft

Overall

13929

Females

4759

F40-44

4759

23M→24M

23.0 - 24.0 mi

Top 42%
×6stories
+12ft-82ft

Overall

11932

Females

3771

F40-44

3771

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

11402

Females

3611

F40-44

3611

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

17878

Females

7056

F40-44

7056

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2stories
+22ft-21ft

Overall

13214

Females

4554

F40-44

4554

Passing Analysis

Category:
Athletes Passed
1148
Passed By
4088
Net Change
-2940
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10610
5K → 10K40962-922#10610#11532
10K → 15K52713-661#11532#12193
15K → 20K97490-393#12193#12586
20K → Half5120-115#12586#12701
Half → 25K117271-154#12701#12855
25K → 30K156502-346#12855#13201
30K → 20M86169-83#13201#13284
20M → 21M29503-474#13284#13758
21M → 35K9815+83#13758#13675
35K → 23M121104+17#13675#13658
23M → 24M12338+85#13658#13573
24M → 40K12520+105#13573#13468
40K → 25.2M18117-99#13468#13567
25.2M → Finish8164+17#13567#13550
TOTALS11484088-2940
📊

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