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BOSTON MARATHON 2025

Cathy Lapinski

Bib: 22627•F

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F45-49)
#0 / 1813
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
8:44/mi
27:08
↑ 97↓ 3451.5%
10K· 6.21 mi
8:38/mi
53:57
↑ 79↓ 1380.4%
15K· 9.32 mi
8:40/mi
1:20:53
↑ 67↓ 78
20K· 12.43 mi
9:00/mi
1:48:52
↑ 106↓ 860.1%
Half· 13.11 mi
8:39/mi
1:54:46
↑ 19↓ 370.5%
25K· 15.53 mi
8:56/mi
2:16:25
↑ 66↓ 880.2%
30K· 18.64 mi
9:19/mi
2:45:23
↑ 181↓ 1480.2%
20M
9:19/mi
2:58:03
↑ 64↓ 500.2%
21M
10:16/mi
3:08:19
↑ 106↓ 241.6%
35K· 21.75 mi
8:56/mi
3:15:00
↑ 17↓ 861.7%
23M
9:14/mi
3:26:34
↑ 23↓ 630.6%
24M
9:07/mi
3:35:41
↓ 821.3%
40K· 24.85 mi
9:17/mi
3:43:37
↓ 200.3%
25.2M
11:24/mi
3:47:33
↑ 13↓ 160.2%
Finish· 26.22 mi
8:40/mi
3:56:23
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:46
Pace8:45 /mi
2nd Half
Distance13.11 mi
Time2:01:37
Pace9:17 /mi
📊Positive Split: 6.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:2627:088:4427:08
8:44
-
10K
6.21 mi11:51:1553:578:4126:49
8:38
-0:06
15K
9.32 mi12:18:111:20:538:4126:56
8:40
+0:02
20K
12.43 mi12:46:101:48:528:4627:59
9:00
+0:20
Half
13.11 mi12:52:041:54:468:455:54
8:39
-0:21
25K
15.53 mi13:13:432:16:258:4721:39
8:56
+0:17
30K
18.64 mi13:42:412:45:238:5228:58
9:19
+0:23
20M
20.00 mi13:55:212:58:038:5412:40
9:19
0:00
21M
21.00 mi14:05:373:08:198:5810:16
10:16
+0:57
35K
21.75 mi14:12:183:15:008:586:41
8:56
-1:20
23M
23.00 mi14:23:523:26:348:5911:34
9:14
+0:18
24M
24.00 mi14:32:593:35:418:599:07
9:07
-0:07
40K
24.85 mi14:40:553:43:379:007:56
9:17
+0:10
25.2M
25.20 mi14:44:513:47:339:023:56
11:24
+2:07
Finish
26.22 mi14:53:413:56:239:018:50
8:40
-2:44

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

8:38 /mi

Average Pace

9:01 /mi

Slowest Pace

11:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

26:49

11% of race

Time at Steady Pace

3:15:22

83% of race

Time at Slower Pace

14:12

6% of race

Average Pace: 9:01 /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 mi11:24:2627:088:4427:08
8:44
#21173
10K
6.21 mi11:51:1553:578:4126:49
8:38
#20830
15K
9.32 mi12:18:111:20:538:4126:56
8:40
#20631
20K
12.43 mi12:46:101:48:528:4627:59
9:00
#20727
Half
13.11 mi12:52:041:54:468:455:54
8:39
#20691
25K
15.53 mi13:13:432:16:258:4721:39
8:56
#20527
30K
18.64 mi13:42:412:45:238:5228:58
9:19
#20254
20M
20.00 mi13:55:212:58:038:5412:40
9:19
#20098
21M
21.00 mi14:05:373:08:198:5810:16
10:16
#20024
35K
21.75 mi14:12:183:15:008:586:41
8:56
#19955
23M
23.00 mi14:23:523:26:348:5911:34
9:14
#19826
24M
24.00 mi14:32:593:35:418:599:07
9:07
#19728
40K
24.85 mi14:40:553:43:379:007:56
9:17
#19673
25.2M
25.20 mi14:44:513:47:339:023:56
11:24
#19718
Finish
26.22 mi14:53:413:56:239:018:50
8:40
#19637
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi211738178817820304(Top 71%)7599(Top 62%)7599(Top 419%)
10K6.21 mi3.10 mi20830+3437956+2227956+22220523(Top 72%)7756(Top 63%)7756(Top 428%)
15K9.32 mi3.11 mi20631+1997825+1317825+13120304(Top 71%)7599(Top 62%)7599(Top 419%)
20K12.43 mi3.11 mi20727-967887-627887-6221016(Top 74%)8066(Top 66%)8066(Top 445%)
Half13.11 mi0.68 mi20691+367870+177870+1720094(Top 71%)7534(Top 62%)7534(Top 416%)
25K15.53 mi2.42 mi20527+1647789+817789+8119586(Top 69%)7307(Top 60%)7307(Top 403%)
30K18.64 mi3.11 mi20254+2737676+1137676+11319222(Top 68%)7241(Top 59%)7241(Top 399%)
20M20.00 mi1.36 mi20098+1567604+727604+7218407(Top 65%)6956(Top 57%)6956(Top 384%)
21M21.00 mi1.00 mi20024+747585+197585+1919260(Top 68%)7470(Top 61%)7470(Top 412%)
35K21.75 mi0.75 mi19955+697563+227563+2217962(Top 63%)6888(Top 56%)6888(Top 380%)
23M23.00 mi1.25 mi19826+1297524+397524+3917528(Top 62%)6747(Top 55%)6747(Top 372%)
24M24.00 mi1.00 mi19728+987496+287496+2817988(Top 63%)7035(Top 58%)7035(Top 388%)
40K24.85 mi0.85 mi19673+557478+187478+1817785(Top 63%)7027(Top 57%)7027(Top 388%)
25.2M25.20 mi0.35 mi19718-457513-357513-3521820(Top 77%)9058(Top 74%)9058(Top 500%)
Finish26.22 mi1.02 mi19637+817484+297484+2917325(Top 61%)6728(Top 55%)6728(Top 371%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21story building
+97ft-345ft

Overall

20304

Females

7599

F45-49

7599

5K→10K

3.1 - 6.2 mi

Top 72%
×5story building
+79ft-138ft

Overall

20523

Females

7756

F45-49

7756

10K→15K

6.2 - 9.3 mi

Top 71%
×3story building
+67ft-78ft

Overall

20304

Females

7599

F45-49

7599

15K→20K

9.3 - 12.4 mi

Top 74%
×5story building
+106ft-86ft

Overall

21016

Females

8066

F45-49

8066

20K→Half

12.4 - 13.1 mi

Top 71%
×2story building
+19ft-37ft

Overall

20094

Females

7534

F45-49

7534

Half→25K

13.1 - 15.5 mi

Top 69%
×4story building
+66ft-88ft

Overall

19586

Females

7307

F45-49

7307

25K→30K

15.5 - 18.6 mi

Top 68%
×9story building
+181ft-148ft

Overall

19222

Females

7241

F45-49

7241

30K→20M

18.6 - 20.0 mi

Top 65%
×5story building
+64ft-50ft

Overall

18407

Females

6956

F45-49

6956

20M→21M

20.0 - 21.0 mi

Top 68%
×8story building
+106ft-24ft

Overall

19260

Females

7470

F45-49

7470

21M→35K

21.0 - 21.8 mi

Top 63%
×7story building
+17ft-86ft

Overall

17962

Females

6888

F45-49

6888

35K→23M

21.8 - 23.0 mi

Top 62%
×5story building
+23ft-63ft

Overall

17528

Females

6747

F45-49

6747

23M→24M

23.0 - 24.0 mi

Top 63%
×6story building
+12ft-82ft

Overall

17988

Females

7035

F45-49

7035

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

17785

Females

7027

F45-49

7027

40K→25.2M

24.9 - 25.2 mi

Top 77%
×1story
+13ft-16ft

Overall

21820

Females

9058

F45-49

9058

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2story building
+22ft-21ft

Overall

17325

Females

6728

F45-49

6728

Passing Analysis

Category:
Athletes Passed
2465
Passed By
929
Net Change
+1536
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21173
5K → 10K501158+343#21173#20830
10K → 15K303104+199#20830#20631
15K → 20K149245-96#20631#20727
20K → Half5014+36#20727#20691
Half → 25K23470+164#20691#20527
25K → 30K36491+273#20527#20254
30K → 20M17822+156#20254#20098
20M → 21M12753+74#20098#20024
21M → 35K8213+69#20024#19955
35K → 23M15728+129#19955#19826
23M → 24M11820+98#19826#19728
24M → 40K8833+55#19728#19673
40K → 25.2M1257-45#19673#19718
25.2M → Finish10221+81#19718#19637
TOTALS2465929+1536
📊

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