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BOSTON MARATHON 2025

Kasey King

Bib: 28743•F

GA

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

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
10:23/mi
32:17
↑ 97↓ 3451.5%
10K· 6.21 mi
10:06/mi
1:03:41
↑ 79↓ 1380.4%
15K· 9.32 mi
9:59/mi
1:34:43
↑ 67↓ 78
20K· 12.43 mi
9:55/mi
2:05:31
↑ 106↓ 860.1%
Half· 13.11 mi
9:26/mi
2:11:57
↑ 19↓ 370.5%
25K· 15.53 mi
10:01/mi
2:36:14
↑ 66↓ 880.2%
30K· 18.64 mi
10:22/mi
3:08:26
↑ 181↓ 1480.2%
20M
10:25/mi
3:22:36
↑ 64↓ 500.2%
21M
11:13/mi
3:33:49
↑ 106↓ 241.6%
35K· 21.75 mi
10:15/mi
3:41:29
↑ 17↓ 861.7%
23M
10:45/mi
3:54:57
↑ 23↓ 630.6%
24M
10:26/mi
4:05:23
↓ 821.3%
40K· 24.85 mi
10:39/mi
4:14:29
↓ 200.3%
25.2M
11:27/mi
4:18:26
↑ 13↓ 160.2%
Finish· 26.22 mi
9:31/mi
4:28:08
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:11:57
Pace10:04 /mi
2nd Half
Distance13.11 mi
Time2:16:11
Pace10:23 /mi
📊Positive Split: 3.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:3832:1710:2332:17
10:23
-
10K
6.21 mi12:23:021:03:4110:1531:24
10:06
-0:17
15K
9.32 mi12:54:041:34:4310:1031:02
9:59
-0:07
20K
12.43 mi13:24:522:05:3110:0630:48
9:55
-0:04
Half
13.11 mi13:31:182:11:5710:046:26
9:26
-0:29
25K
15.53 mi13:55:352:36:1410:0324:17
10:01
+0:35
30K
18.64 mi14:27:473:08:2610:0732:12
10:22
+0:21
20M
20.00 mi14:41:573:22:3610:0814:10
10:25
+0:03
21M
21.00 mi14:53:103:33:4910:1111:13
11:13
+0:48
35K
21.75 mi15:00:503:41:2910:117:40
10:15
-0:58
23M
23.00 mi15:14:183:54:5710:1313:28
10:45
+0:30
24M
24.00 mi15:24:444:05:2310:1310:26
10:26
-0:19
40K
24.85 mi15:33:504:14:2910:149:06
10:39
+0:13
25.2M
25.20 mi15:37:474:18:2610:153:57
11:27
+0:48
Finish
26.22 mi15:47:294:28:0810:149:42
9:31
-1:56

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

9:26 /mi

Average Pace

10:14 /mi

Slowest Pace

11:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:13:39

50% of race

Time at Steady Pace

1:36:45

36% of race

Time at Slower Pace

37:44

14% of race

Average Pace: 10:14 /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 mi11:51:3832:1710:2332:17
10:23
#26524
10K
6.21 mi12:23:021:03:4110:1531:24
10:06
#26006
15K
9.32 mi12:54:041:34:4310:1031:02
9:59
#25644
20K
12.43 mi13:24:522:05:3110:0630:48
9:55
#25233
Half
13.11 mi13:31:182:11:5710:046:26
9:26
#25154
25K
15.53 mi13:55:352:36:1410:0324:17
10:01
#24839
30K
18.64 mi14:27:473:08:2610:0732:12
10:22
#24473
20M
20.00 mi14:41:573:22:3610:0814:10
10:25
#24322
21M
21.00 mi14:53:103:33:4910:1111:13
11:13
#24187
35K
21.75 mi15:00:503:41:2910:117:40
10:15
#24127
23M
23.00 mi15:14:183:54:5710:1313:28
10:45
#24036
24M
24.00 mi15:24:444:05:2310:1310:26
10:26
#23979
40K
24.85 mi15:33:504:14:2910:149:06
10:39
#23924
25.2M
25.20 mi15:37:474:18:2610:153:57
11:27
#23897
Finish
26.22 mi15:47:294:28:0810:149:42
9:31
#23823
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26524110531105324974(Top 88%)10201(Top 83%)10201(Top 187%)
10K6.21 mi3.10 mi26006+51810782+27110782+27125547(Top 90%)10551(Top 86%)10551(Top 193%)
15K9.32 mi3.11 mi25644+36210587+19510587+19524974(Top 88%)10201(Top 83%)10201(Top 187%)
20K12.43 mi3.11 mi25233+41110362+22510362+22524053(Top 85%)9737(Top 80%)9737(Top 178%)
Half13.11 mi0.68 mi25154+7910322+4010322+4023379(Top 82%)9365(Top 77%)9365(Top 171%)
25K15.53 mi2.42 mi24839+31510169+15310169+15323304(Top 82%)9366(Top 77%)9366(Top 171%)
30K18.64 mi3.11 mi24473+3669987+1829987+18222631(Top 80%)9124(Top 75%)9124(Top 167%)
20M20.00 mi1.36 mi24322+1519925+629925+6222242(Top 78%)9031(Top 74%)9031(Top 165%)
21M21.00 mi1.00 mi24187+1359865+609865+6021971(Top 77%)8957(Top 73%)8957(Top 164%)
35K21.75 mi0.75 mi24127+609836+299836+2922584(Top 80%)9332(Top 76%)9332(Top 171%)
23M23.00 mi1.25 mi24036+919813+239813+2322662(Top 80%)9427(Top 77%)9427(Top 172%)
24M24.00 mi1.00 mi23979+579795+189795+1822652(Top 80%)9461(Top 77%)9461(Top 173%)
40K24.85 mi0.85 mi23924+559777+189777+1822314(Top 79%)9368(Top 77%)9368(Top 171%)
25.2M25.20 mi0.35 mi23897+279772+59772+521978(Top 77%)9150(Top 75%)9150(Top 167%)
Finish26.22 mi1.02 mi23823+749748+249748+2421260(Top 75%)8798(Top 72%)8798(Top 161%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21story building
+97ft-345ft

Overall

24974

Females

10201

F18-39

10201

5K→10K

3.1 - 6.2 mi

Top 90%
×5story building
+79ft-138ft

Overall

25547

Females

10551

F18-39

10551

10K→15K

6.2 - 9.3 mi

Top 88%
×3story building
+67ft-78ft

Overall

24974

Females

10201

F18-39

10201

15K→20K

9.3 - 12.4 mi

Top 85%
×5story building
+106ft-86ft

Overall

24053

Females

9737

F18-39

9737

20K→Half

12.4 - 13.1 mi

Top 82%
×2story building
+19ft-37ft

Overall

23379

Females

9365

F18-39

9365

Half→25K

13.1 - 15.5 mi

Top 82%
×4story building
+66ft-88ft

Overall

23304

Females

9366

F18-39

9366

25K→30K

15.5 - 18.6 mi

Top 80%
×9story building
+181ft-148ft

Overall

22631

Females

9124

F18-39

9124

30K→20M

18.6 - 20.0 mi

Top 78%
×5story building
+64ft-50ft

Overall

22242

Females

9031

F18-39

9031

20M→21M

20.0 - 21.0 mi

Top 77%
×8story building
+106ft-24ft

Overall

21971

Females

8957

F18-39

8957

21M→35K

21.0 - 21.8 mi

Top 80%
×7story building
+17ft-86ft

Overall

22584

Females

9332

F18-39

9332

35K→23M

21.8 - 23.0 mi

Top 80%
×5story building
+23ft-63ft

Overall

22662

Females

9427

F18-39

9427

23M→24M

23.0 - 24.0 mi

Top 80%
×6story building
+12ft-82ft

Overall

22652

Females

9461

F18-39

9461

24M→40K

24.0 - 24.9 mi

Top 79%
×1story
+6ft-20ft

Overall

22314

Females

9368

F18-39

9368

40K→25.2M

24.9 - 25.2 mi

Top 77%
×1story
+13ft-16ft

Overall

21978

Females

9150

F18-39

9150

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2story building
+22ft-21ft

Overall

21260

Females

8798

F18-39

8798

Passing Analysis

Category:
Athletes Passed
2864
Passed By
163
Net Change
+2701
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26524
5K → 10K54628+518#26524#26006
10K → 15K37412+362#26006#25644
15K → 20K4187+411#25644#25233
20K → Half812+79#25233#25154
Half → 25K3183+315#25154#24839
25K → 30K3715+366#24839#24473
30K → 20M1587+151#24473#24322
20M → 21M14712+135#24322#24187
21M → 35K677+60#24187#24127
35K → 23M11726+91#24127#24036
23M → 24M7417+57#24036#23979
24M → 40K7116+55#23979#23924
40K → 25.2M347+27#23924#23897
25.2M → Finish8814+74#23897#23823
TOTALS2864163+2701
📊

Passing Visuals

Category:
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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