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BOSTON MARATHON 2025

Kathryn Morrill

Bib: 18248•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 (F50-54)
#0 / 1303
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:44
Rank: #22124
Start → 5K
27:44 | 8:56/mi
10K· 6.21 mi
56:35
Rank: #22839 (-715)
5K → 10K
28:51 | 9:17/mi
15K· 9.32 mi
1:25:49
Rank: #23145 (-306)
10K → 15K
29:14 | 9:25/mi
20K· 12.43 mi
1:56:37
Rank: #23407 (-262)
15K → 20K
30:48 | 9:55/mi
Half· 13.11 mi
2:03:12
Rank: #23442 (-35)
20K → Half
6:35 | 9:39/mi
25K· 15.53 mi
2:28:14
Rank: #23536 (-94)
Half → 25K
25:02 | 10:19/mi
30K· 18.64 mi
3:02:41
Rank: #23670 (-134)
25K → 30K
34:27 | 11:05/mi
20M
3:16:42
Rank: #23533 (+137)
30K → 20M
14:01 | 10:19/mi
21M
3:27:54
Rank: #23431 (+102)
20M → 21M
11:12 | 11:12/mi
35K· 21.75 mi
3:36:20
Rank: #23490 (-59)
21M → 35K
8:26 | 11:16/mi
23M
3:49:30
Rank: #23412 (+78)
35K → 23M
13:10 | 10:31/mi
24M
4:01:15
Rank: #23529 (-117)
23M → 24M
11:45 | 11:45/mi
40K· 24.85 mi
4:10:05
Rank: #23448 (+81)
24M → 40K
8:50 | 10:20/mi
25.2M
4:14:06
Rank: #23419 (+29)
40K → 25.2M
4:01 | 11:39/mi
Finish· 26.22 mi
4:24:41
Rank: #23459 (-40)
25.2M → Finish
10:35 | 10:23/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:03:12
Pace9:24 /mi
2nd Half
Distance13.11 mi
Time2:21:29
Pace10:48 /mi
📊Positive Split: 14.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:3327:448:5627:44
8:56
-
10K
6.21 mi11:51:2456:359:0628:51
9:17
+0:21
15K
9.32 mi12:20:381:25:499:1229:14
9:25
+0:08
20K
12.43 mi12:51:261:56:379:2330:48
9:55
+0:30
Half
13.11 mi12:58:012:03:129:246:35
9:39
-0:16
25K
15.53 mi13:23:032:28:149:3325:02
10:19
+0:40
30K
18.64 mi13:57:303:02:419:4834:27
11:05
+0:46
20M
20.00 mi14:11:313:16:429:5014:01
10:19
-0:46
21M
21.00 mi14:22:433:27:549:5411:12
11:12
+0:53
35K
21.75 mi14:31:093:36:209:578:26
11:16
+0:04
23M
23.00 mi14:44:193:49:309:5913:10
10:31
-0:45
24M
24.00 mi14:56:044:01:1510:0311:45
11:45
+1:14
40K
24.85 mi15:04:544:10:0510:048:50
10:20
-1:25
25.2M
25.20 mi15:08:554:14:0610:054:01
11:39
+1:19
Finish
26.22 mi15:19:304:24:4110:0610:35
10:23
-1:16

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

8:56 /mi

Average Pace

10:06 /mi

Slowest Pace

11:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:32:24

35% of race

Time at Steady Pace

1:42:26

39% of race

Time at Slower Pace

1:09:51

26% of race

Average Pace: 10:06 /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 mi11:22:3327:448:5627:44
8:56
#22124
10K
6.21 mi11:51:2456:359:0628:51
9:17
#22839
15K
9.32 mi12:20:381:25:499:1229:14
9:25
#23145
20K
12.43 mi12:51:261:56:379:2330:48
9:55
#23407
Half
13.11 mi12:58:012:03:129:246:35
9:39
#23442
25K
15.53 mi13:23:032:28:149:3325:02
10:19
#23536
30K
18.64 mi13:57:303:02:419:4834:27
11:05
#23670
20M
20.00 mi14:11:313:16:429:5014:01
10:19
#23533
21M
21.00 mi14:22:433:27:549:5411:12
11:12
#23431
35K
21.75 mi14:31:093:36:209:578:26
11:16
#23490
23M
23.00 mi14:44:193:49:309:5913:10
10:31
#23412
24M
24.00 mi14:56:044:01:1510:0311:45
11:45
#23529
40K
24.85 mi15:04:544:10:0510:048:50
10:20
#23448
25.2M
25.20 mi15:08:554:14:0610:054:01
11:39
#23419
Finish
26.22 mi15:19:304:24:4110:0610:35
10:23
#23459
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi221248698869823504(Top 83%)9379(Top 77%)9379(Top 720%)
10K6.21 mi3.10 mi22839-7159067-3699067-36923485(Top 83%)9402(Top 77%)9402(Top 722%)
15K9.32 mi3.11 mi23145-3069214-1479214-14723504(Top 83%)9379(Top 77%)9379(Top 720%)
20K12.43 mi3.11 mi23407-2629345-1319345-13124052(Top 85%)9736(Top 80%)9736(Top 747%)
Half13.11 mi0.68 mi23442-359364-199364-1923986(Top 84%)9697(Top 79%)9697(Top 744%)
25K15.53 mi2.42 mi23536-949440-769440-7624011(Top 85%)9745(Top 80%)9745(Top 748%)
30K18.64 mi3.11 mi23670-1349556-1169556-11624167(Top 85%)9956(Top 81%)9956(Top 764%)
20M20.00 mi1.36 mi23533+1379497+599497+5921922(Top 77%)8848(Top 72%)8848(Top 679%)
21M21.00 mi1.00 mi23431+1029464+339464+3321921(Top 77%)8930(Top 73%)8930(Top 685%)
35K21.75 mi0.75 mi23490-599507-439507-4324731(Top 87%)10441(Top 85%)10441(Top 801%)
23M23.00 mi1.25 mi23412+789480+279480+2722071(Top 78%)9107(Top 74%)9107(Top 699%)
24M24.00 mi1.00 mi23529-1179559-799559-7925341(Top 89%)10794(Top 88%)10794(Top 828%)
40K24.85 mi0.85 mi23448+819526+339526+3321501(Top 76%)8935(Top 73%)8935(Top 686%)
25.2M25.20 mi0.35 mi23419+299526952622477(Top 79%)9400(Top 77%)9400(Top 721%)
Finish26.22 mi1.02 mi23459-409565-399565-3924013(Top 85%)10178(Top 83%)10178(Top 781%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21stories
+97ft-345ft

Overall

23504

Females

9379

F50-54

9379

5K→10K

3.1 - 6.2 mi

Top 83%
×5stories
+79ft-138ft

Overall

23485

Females

9402

F50-54

9402

10K→15K

6.2 - 9.3 mi

Top 83%
×3stories
+67ft-78ft

Overall

23504

Females

9379

F50-54

9379

15K→20K

9.3 - 12.4 mi

Top 85%
×5stories
+106ft-86ft

Overall

24052

Females

9736

F50-54

9736

20K→Half

12.4 - 13.1 mi

Top 84%
×2stories
+19ft-37ft

Overall

23986

Females

9697

F50-54

9697

Half→25K

13.1 - 15.5 mi

Top 85%
×4stories
+66ft-88ft

Overall

24011

Females

9745

F50-54

9745

25K→30K

15.5 - 18.6 mi

Top 85%
×9stories
+181ft-148ft

Overall

24167

Females

9956

F50-54

9956

30K→20M

18.6 - 20.0 mi

Top 77%
×5stories
+64ft-50ft

Overall

21922

Females

8848

F50-54

8848

20M→21M

20.0 - 21.0 mi

Top 77%
×8stories
+106ft-24ft

Overall

21921

Females

8930

F50-54

8930

21M→35K

21.0 - 21.8 mi

Top 87%
×7stories
+17ft-86ft

Overall

24731

Females

10441

F50-54

10441

35K→23M

21.8 - 23.0 mi

Top 78%
×5stories
+23ft-63ft

Overall

22071

Females

9107

F50-54

9107

23M→24M

23.0 - 24.0 mi

Top 89%
×6stories
+12ft-82ft

Overall

25341

Females

10794

F50-54

10794

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

21501

Females

8935

F50-54

8935

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

22477

Females

9400

F50-54

9400

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2stories
+22ft-21ft

Overall

24013

Females

10178

F50-54

10178

Passing Analysis

Category:
Athletes Passed
1070
Passed By
2405
Net Change
-1335
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22124
5K → 10K63778-715#22124#22839
10K → 15K86392-306#22839#23145
15K → 20K88350-262#23145#23407
20K → Half1954-35#23407#23442
Half → 25K94188-94#23442#23536
25K → 30K110244-134#23536#23670
30K → 20M15114+137#23670#23533
20M → 21M13230+102#23533#23431
21M → 35K2988-59#23431#23490
35K → 23M10729+78#23490#23412
23M → 24M24141-117#23412#23529
24M → 40K9413+81#23529#23448
40K → 25.2M4314+29#23448#23419
25.2M → Finish3070-40#23419#23459
TOTALS10702405-1335
📊

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