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BOSTON MARATHON 2025

Louise Stafford

Bib: 19260•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 45%
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
24:56
Rank: #16806
Start → 5K
24:56 | 8:02/mi
10K· 6.21 mi
50:18
Rank: #17229 (-423)
5K → 10K
25:22 | 8:10/mi
15K· 9.32 mi
1:15:46
Rank: #17288 (-59)
10K → 15K
25:28 | 8:12/mi
20K· 12.43 mi
1:41:55
Rank: #17353 (-65)
15K → 20K
26:09 | 8:25/mi
Half· 13.11 mi
1:47:37
Rank: #17389 (-36)
20K → Half
5:42 | 8:21/mi
25K· 15.53 mi
2:10:12
Rank: #18146 (-757)
Half → 25K
22:35 | 9:19/mi
30K· 18.64 mi
2:40:58
Rank: #18951 (-805)
25K → 30K
30:46 | 9:54/mi
20M
2:53:46
Rank: #18968 (-17)
30K → 20M
12:48 | 9:25/mi
21M
3:03:56
Rank: #18955 (+13)
20M → 21M
10:10 | 10:10/mi
35K· 21.75 mi
3:10:17
Rank: #18828 (+127)
21M → 35K
6:21 | 8:29/mi
23M
3:21:55
Rank: #18755 (+73)
35K → 23M
11:38 | 9:17/mi
24M
3:30:54
Rank: #18686 (+69)
23M → 24M
8:59 | 8:59/mi
40K· 24.85 mi
3:38:12
Rank: #18475 (+211)
24M → 40K
7:18 | 8:32/mi
25.2M
3:41:28
Rank: #18413 (+62)
40K → 25.2M
3:16 | 9:28/mi
Finish· 26.22 mi
3:49:29
Rank: #18205 (+208)
25.2M → Finish
8:01 | 7:52/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:37
Pace8:13 /mi
2nd Half
Distance13.11 mi
Time2:01:52
Pace9:18 /mi
📊Positive Split: 13.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:4024:568:0224:56
8:02
-
10K
6.21 mi11:45:0250:188:0625:22
8:10
+0:08
15K
9.32 mi12:10:301:15:468:0825:28
8:12
+0:02
20K
12.43 mi12:36:391:41:558:1226:09
8:25
+0:13
Half
13.11 mi12:42:211:47:378:135:42
8:21
-0:04
25K
15.53 mi13:04:562:10:128:2322:35
9:19
+0:58
30K
18.64 mi13:35:422:40:588:3830:46
9:54
+0:35
20M
20.00 mi13:48:302:53:468:4112:48
9:25
-0:29
21M
21.00 mi13:58:403:03:568:4610:10
10:10
+0:45
35K
21.75 mi14:05:013:10:178:456:21
8:29
-1:41
23M
23.00 mi14:16:393:21:558:4711:38
9:17
+0:48
24M
24.00 mi14:25:383:30:548:478:59
8:59
-0:18
40K
24.85 mi14:32:563:38:128:477:18
8:32
-0:27
25.2M
25.20 mi14:36:123:41:288:473:16
9:28
+0:56
Finish
26.22 mi14:44:133:49:298:468:01
7:52
-1:36

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

7:52 /mi

Average Pace

8:46 /mi

Slowest Pace

10:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

58:19

25% of race

Time at Steady Pace

1:10:58

31% of race

Time at Slower Pace

1:40:12

44% of race

Average Pace: 8:45 /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 mi11:19:4024:568:0224:56
8:02
#16806
10K
6.21 mi11:45:0250:188:0625:22
8:10
#17229
15K
9.32 mi12:10:301:15:468:0825:28
8:12
#17288
20K
12.43 mi12:36:391:41:558:1226:09
8:25
#17353
Half
13.11 mi12:42:211:47:378:135:42
8:21
#17389
25K
15.53 mi13:04:562:10:128:2322:35
9:19
#18146
30K
18.64 mi13:35:422:40:588:3830:46
9:54
#18951
20M
20.00 mi13:48:302:53:468:4112:48
9:25
#18968
21M
21.00 mi13:58:403:03:568:4610:10
10:10
#18955
35K
21.75 mi14:05:013:10:178:456:21
8:29
#18828
23M
23.00 mi14:16:393:21:558:4711:38
9:17
#18755
24M
24.00 mi14:25:383:30:548:478:59
8:59
#18686
40K
24.85 mi14:32:563:38:128:477:18
8:32
#18475
25.2M
25.20 mi14:36:123:41:288:473:16
9:28
#18413
Finish
26.22 mi14:44:133:49:298:468:01
7:52
#18205
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi168065637563717383(Top 61%)5950(Top 49%)5950(Top 346%)
10K6.21 mi3.10 mi17229-4235864-2275864-22717670(Top 62%)6102(Top 50%)6102(Top 355%)
15K9.32 mi3.11 mi17288-595888-245888-2417383(Top 61%)5950(Top 49%)5950(Top 346%)
20K12.43 mi3.11 mi17353-655948-605948-6017666(Top 62%)6150(Top 50%)6150(Top 358%)
Half13.11 mi0.68 mi17389-365975-275975-2718369(Top 65%)6546(Top 54%)6546(Top 381%)
25K15.53 mi2.42 mi18146-7576443-4686443-46821240(Top 75%)8222(Top 67%)8222(Top 479%)
30K18.64 mi3.11 mi18951-8056916-4736916-47321310(Top 75%)8400(Top 69%)8400(Top 489%)
20M20.00 mi1.36 mi18968-176959-436959-4318834(Top 66%)7174(Top 59%)7174(Top 418%)
21M21.00 mi1.00 mi18955+136983-246983-2418928(Top 67%)7299(Top 60%)7299(Top 425%)
35K21.75 mi0.75 mi18828+1276922+616922+6115453(Top 54%)5509(Top 45%)5509(Top 321%)
23M23.00 mi1.25 mi18755+736912+106912+1017746(Top 62%)6863(Top 56%)6863(Top 399%)
24M24.00 mi1.00 mi18686+696894+186894+1817304(Top 61%)6652(Top 54%)6652(Top 387%)
40K24.85 mi0.85 mi18475+2116809+856809+8513720(Top 48%)4831(Top 40%)4831(Top 281%)
25.2M25.20 mi0.35 mi18413+626782+276782+2714548(Top 51%)5337(Top 44%)5337(Top 311%)
Finish26.22 mi1.02 mi18205+2086683+996683+9911992(Top 42%)3940(Top 32%)3940(Top 229%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21stories
+97ft-345ft

Overall

17383

Females

5950

F40-44

5950

5K→10K

3.1 - 6.2 mi

Top 62%
×5stories
+79ft-138ft

Overall

17670

Females

6102

F40-44

6102

10K→15K

6.2 - 9.3 mi

Top 61%
×3stories
+67ft-78ft

Overall

17383

Females

5950

F40-44

5950

15K→20K

9.3 - 12.4 mi

Top 62%
×5stories
+106ft-86ft

Overall

17666

Females

6150

F40-44

6150

20K→Half

12.4 - 13.1 mi

Top 65%
×2stories
+19ft-37ft

Overall

18369

Females

6546

F40-44

6546

Half→25K

13.1 - 15.5 mi

Top 75%
×4stories
+66ft-88ft

Overall

21240

Females

8222

F40-44

8222

25K→30K

15.5 - 18.6 mi

Top 75%
×9stories
+181ft-148ft

Overall

21310

Females

8400

F40-44

8400

30K→20M

18.6 - 20.0 mi

Top 66%
×5stories
+64ft-50ft

Overall

18834

Females

7174

F40-44

7174

20M→21M

20.0 - 21.0 mi

Top 67%
×8stories
+106ft-24ft

Overall

18928

Females

7299

F40-44

7299

21M→35K

21.0 - 21.8 mi

Top 54%
×7stories
+17ft-86ft

Overall

15453

Females

5509

F40-44

5509

35K→23M

21.8 - 23.0 mi

Top 62%
×5stories
+23ft-63ft

Overall

17746

Females

6863

F40-44

6863

23M→24M

23.0 - 24.0 mi

Top 61%
×6stories
+12ft-82ft

Overall

17304

Females

6652

F40-44

6652

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

13720

Females

4831

F40-44

4831

40K→25.2M

24.9 - 25.2 mi

Top 51%
×1story
+13ft-16ft

Overall

14548

Females

5337

F40-44

5337

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2stories
+22ft-21ft

Overall

11992

Females

3940

F40-44

3940

Passing Analysis

Category:
Athletes Passed
1718
Passed By
3117
Net Change
-1399
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16806
5K → 10K159582-423#16806#17229
10K → 15K169228-59#17229#17288
15K → 20K169234-65#17288#17353
20K → Half2157-36#17353#17389
Half → 25K46803-757#17389#18146
25K → 30K71876-805#18146#18951
30K → 20M107124-17#18951#18968
20M → 21M11299+13#18968#18955
21M → 35K1281+127#18955#18828
35K → 23M13865+73#18828#18755
23M → 24M10031+69#18755#18686
24M → 40K2165+211#18686#18475
40K → 25.2M675+62#18475#18413
25.2M → Finish2157+208#18413#18205
TOTALS17183117-1399
📊

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