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BOSTON MARATHON 2025

Kimberly Karras

Bib: 20870•F

UT

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:15
Rank: #21370
Start → 5K
8:46/mi
27:15 split
10K· 6.21 mi
56:47
Rank: #22981 (-1611)
5K → 10K
9:30/mi
29:32 split
15K· 9.32 mi
1:25:08
Rank: #22860 (+121)
10K → 15K
9:07/mi
28:21 split
20K· 12.43 mi
1:54:14
Rank: #22751 (+109)
15K → 20K
9:22/mi
29:06 split
Half· 13.11 mi
2:00:22
Rank: #22695 (+56)
20K → Half
8:59/mi
6:08 split
25K· 15.53 mi
2:23:54
Rank: #22667 (+28)
Half → 25K
9:42/mi
23:32 split
30K· 18.64 mi
2:57:59
Rank: #22946 (-279)
25K → 30K
10:58/mi
34:05 split
20M
3:13:17
Rank: #23046 (-100)
30K → 20M
11:16/mi
15:18 split
21M
3:25:52
Rank: #23152 (-106)
20M → 21M
12:35/mi
12:35 split
35K· 21.75 mi
3:34:04
Rank: #23198 (-46)
21M → 35K
10:58/mi
8:12 split
23M
3:49:19
Rank: #23393 (-195)
35K → 23M
12:11/mi
15:15 split
24M
4:02:02
Rank: #23621 (-228)
23M → 24M
12:43/mi
12:43 split
40K· 24.85 mi
4:12:54
Rank: #23750 (-129)
24M → 40K
12:43/mi
10:52 split
25.2M
4:17:17
Rank: #23762 (-12)
40K → 25.2M
12:43/mi
4:23 split
Finish· 26.22 mi
4:30:14
Rank: #24040 (-278)
25.2M → Finish
12:43/mi
12:57 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:00:22
Pace9:11 /mi
2nd Half
Distance13.11 mi
Time2:29:52
Pace11:26 /mi
📊Positive Split: 24.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:2527:158:4627:15
8:46
-
10K
6.21 mi11:55:5756:479:0829:32
9:30
+0:44
15K
9.32 mi12:24:181:25:089:0828:21
9:07
-0:23
20K
12.43 mi12:53:241:54:149:1229:06
9:22
+0:15
Half
13.11 mi12:59:322:00:229:116:08
8:59
-0:23
25K
15.53 mi13:23:042:23:549:1623:32
9:42
+0:43
30K
18.64 mi13:57:092:57:599:3334:05
10:58
+1:16
20M
20.00 mi14:12:273:13:179:4015:18
11:16
+0:18
21M
21.00 mi14:25:023:25:529:4812:35
12:35
+1:19
35K
21.75 mi14:33:143:34:049:518:12
10:58
-1:37
23M
23.00 mi14:48:293:49:199:5815:15
12:11
+1:13
24M
24.00 mi15:01:124:02:0210:0512:43
12:43
+0:32
40K
24.85 mi15:12:044:12:5410:1010:52
12:43
0:00
25.2M
25.20 mi15:16:274:17:1710:134:23
12:43
0:00
Finish
26.22 mi15:29:244:30:1410:1912:57
12:43
0:00

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

8:46 /mi

Average Pace

10:19 /mi

Slowest Pace

12:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:23:54

53% of race

Time at Steady Pace

57:35

21% of race

Time at Slower Pace

1:08:45

25% of race

Average Pace: 10:18 /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 mi11:26:2527:158:4627:15
8:46
#21370
10K
6.21 mi11:55:5756:479:0829:32
9:30
#22981
15K
9.32 mi12:24:181:25:089:0828:21
9:07
#22860
20K
12.43 mi12:53:241:54:149:1229:06
9:22
#22751
Half
13.11 mi12:59:322:00:229:116:08
8:59
#22695
25K
15.53 mi13:23:042:23:549:1623:32
9:42
#22667
30K
18.64 mi13:57:092:57:599:3334:05
10:58
#22946
20M
20.00 mi14:12:273:13:179:4015:18
11:16
#23046
21M
21.00 mi14:25:023:25:529:4812:35
12:35
#23152
35K
21.75 mi14:33:143:34:049:518:12
10:58
#23198
23M
23.00 mi14:48:293:49:199:5815:15
12:11
#23393
24M
24.00 mi15:01:124:02:0210:0512:43
12:43
#23621
40K
24.85 mi15:12:044:12:5410:1010:52
12:43
#23750
25.2M
25.20 mi15:16:274:17:1710:134:23
12:43
#23762
Finish
26.22 mi15:29:244:30:1410:1912:57
12:43
#24040
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi213708282828222580(Top 79%)8882(Top 73%)8882(Top 517%)
10K6.21 mi3.10 mi22981-16119140-8589140-85824133(Top 85%)9762(Top 80%)9762(Top 568%)
15K9.32 mi3.11 mi22860+1219045+959045+9522580(Top 79%)8882(Top 73%)8882(Top 517%)
20K12.43 mi3.11 mi22751+1098983+628983+6222477(Top 79%)8853(Top 72%)8853(Top 515%)
Half13.11 mi0.68 mi22695+568953+308953+3021842(Top 77%)8514(Top 70%)8514(Top 496%)
25K15.53 mi2.42 mi22667+288959-68959-622525(Top 79%)8948(Top 73%)8948(Top 521%)
30K18.64 mi3.11 mi22946-2799155-1969155-19623959(Top 84%)9846(Top 81%)9846(Top 573%)
20M20.00 mi1.36 mi23046-1009237-829237-8224118(Top 85%)10013(Top 82%)10013(Top 583%)
21M21.00 mi1.00 mi23152-1069304-679304-6724519(Top 86%)10300(Top 84%)10300(Top 600%)
35K21.75 mi0.75 mi23198-469341-379341-3724127(Top 85%)10130(Top 83%)10130(Top 590%)
23M23.00 mi1.25 mi23393-1959469-1289469-12825372(Top 89%)10790(Top 88%)10790(Top 628%)
24M24.00 mi1.00 mi23621-2289610-1419610-14126543(Top 93%)11388(Top 93%)11388(Top 663%)
40K24.85 mi0.85 mi23750-1299695-859695-8525956(Top 91%)11123(Top 91%)11123(Top 647%)
25.2M25.20 mi0.35 mi23762-129703-89703-824614(Top 87%)10475(Top 86%)10475(Top 610%)
Finish26.22 mi1.02 mi24040-2789862-1599862-15927433(Top 97%)11837(Top 97%)11837(Top 689%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21story building
+97ft-345ft

Overall

22580

Females

8882

F40-44

8882

5K→10K

3.1 - 6.2 mi

Top 85%
×5story building
+79ft-138ft

Overall

24133

Females

9762

F40-44

9762

10K→15K

6.2 - 9.3 mi

Top 79%
×3story building
+67ft-78ft

Overall

22580

Females

8882

F40-44

8882

15K→20K

9.3 - 12.4 mi

Top 79%
×5story building
+106ft-86ft

Overall

22477

Females

8853

F40-44

8853

20K→Half

12.4 - 13.1 mi

Top 77%
×2story building
+19ft-37ft

Overall

21842

Females

8514

F40-44

8514

Half→25K

13.1 - 15.5 mi

Top 79%
×4story building
+66ft-88ft

Overall

22525

Females

8948

F40-44

8948

25K→30K

15.5 - 18.6 mi

Top 84%
×9story building
+181ft-148ft

Overall

23959

Females

9846

F40-44

9846

30K→20M

18.6 - 20.0 mi

Top 85%
×5story building
+64ft-50ft

Overall

24118

Females

10013

F40-44

10013

20M→21M

20.0 - 21.0 mi

Top 86%
×8story building
+106ft-24ft

Overall

24519

Females

10300

F40-44

10300

21M→35K

21.0 - 21.8 mi

Top 85%
×7story building
+17ft-86ft

Overall

24127

Females

10130

F40-44

10130

35K→23M

21.8 - 23.0 mi

Top 89%
×5story building
+23ft-63ft

Overall

25372

Females

10790

F40-44

10790

23M→24M

23.0 - 24.0 mi

Top 93%
×6story building
+12ft-82ft

Overall

26543

Females

11388

F40-44

11388

24M→40K

24.0 - 24.9 mi

Top 91%
×1story
+6ft-20ft

Overall

25956

Females

11123

F40-44

11123

40K→25.2M

24.9 - 25.2 mi

Top 87%
×1story
+13ft-16ft

Overall

24614

Females

10475

F40-44

10475

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×2story building
+22ft-21ft

Overall

27433

Females

11837

F40-44

11837

Passing Analysis

Category:
Athletes Passed
969
Passed By
3639
Net Change
-2670
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21370
5K → 10K171628-1611#21370#22981
10K → 15K227106+121#22981#22860
15K → 20K241132+109#22860#22751
20K → Half659+56#22751#22695
Half → 25K160132+28#22695#22667
25K → 30K80359-279#22667#22946
30K → 20M53153-100#22946#23046
20M → 21M36142-106#23046#23152
21M → 35K2470-46#23152#23198
35K → 23M25220-195#23198#23393
23M → 24M13241-228#23393#23621
24M → 40K12141-129#23621#23750
40K → 25.2M1022-12#23750#23762
25.2M → Finish6284-278#23762#24040
TOTALS9693639-2670
📊

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