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BOSTON MARATHON 2025

Alison Lazewski

Bib: 22770•F

PA

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

Start
0:00:00
Race begins
5K· 3.11 mi
29:54
Rank: #24611
Start → 5K
29:54 | 9:37/mi
10K· 6.21 mi
1:00:53
Rank: #24965 (-354)
5K → 10K
30:59 | 9:58/mi
15K· 9.32 mi
1:34:31
Rank: #25603 (-638)
10K → 15K
33:38 | 10:50/mi
20K· 12.43 mi
2:12:59
Rank: #26317 (-714)
15K → 20K
38:28 | 12:23/mi
Half· 13.11 mi
2:20:45
Rank: #26373 (-56)
20K → Half
7:46 | 11:23/mi
25K· 15.53 mi
2:48:15
Rank: #26240 (+133)
Half → 25K
27:30 | 11:21/mi
30K· 18.64 mi
3:29:55
Rank: #26482 (-242)
25K → 30K
41:40 | 13:25/mi
20M
3:45:43
Rank: #26351 (+131)
30K → 20M
15:48 | 11:38/mi
21M
4:00:15
Rank: #26395 (-44)
20M → 21M
14:32 | 14:32/mi
35K· 21.75 mi
4:09:01
Rank: #26360 (+35)
21M → 35K
8:46 | 11:43/mi
23M
4:24:28
Rank: #26338 (+22)
35K → 23M
15:27 | 12:20/mi
24M
4:35:24
Rank: #26245 (+93)
23M → 24M
10:56 | 10:56/mi
40K· 24.85 mi
4:45:54
Rank: #26222 (+23)
24M → 40K
10:30 | 12:17/mi
25.2M
4:50:54
Rank: #26238 (-16)
40K → 25.2M
5:00 | 14:30/mi
Finish· 26.22 mi
5:01:18
Rank: #26197 (+41)
25.2M → Finish
10:24 | 10:12/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:20:45
Pace10:44 /mi
2nd Half
Distance13.11 mi
Time2:40:33
Pace12:15 /mi
📊Positive Split: 14.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:27:1129:549:3729:54
9:37
-
10K
6.21 mi11:58:101:00:539:4830:59
9:58
+0:21
15K
9.32 mi12:31:481:34:3110:0833:38
10:50
+0:52
20K
12.43 mi13:10:162:12:5910:4238:28
12:23
+1:33
Half
13.11 mi13:18:022:20:4510:447:46
11:23
-1:00
25K
15.53 mi13:45:322:48:1510:5027:30
11:21
-0:02
30K
18.64 mi14:27:123:29:5511:1641:40
13:25
+2:04
20M
20.00 mi14:43:003:45:4311:1715:48
11:38
-1:47
21M
21.00 mi14:57:324:00:1511:2614:32
14:32
+2:54
35K
21.75 mi15:06:184:09:0111:278:46
11:43
-2:49
23M
23.00 mi15:21:454:24:2811:3015:27
12:20
+0:37
24M
24.00 mi15:32:414:35:2411:2910:56
10:56
-1:24
40K
24.85 mi15:43:114:45:5411:3010:30
12:17
+1:21
25.2M
25.20 mi15:48:114:50:5411:335:00
14:30
+2:13
Finish
26.22 mi15:58:355:01:1811:3010:24
10:12
-4:18

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

9:37 /mi

Average Pace

11:30 /mi

Slowest Pace

14:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:55

35% of race

Time at Steady Pace

1:36:43

32% of race

Time at Slower Pace

1:39:40

33% of race

Average Pace: 11:29 /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 mi11:27:1129:549:3729:54
9:37
#24611
10K
6.21 mi11:58:101:00:539:4830:59
9:58
#24965
15K
9.32 mi12:31:481:34:3110:0833:38
10:50
#25603
20K
12.43 mi13:10:162:12:5910:4238:28
12:23
#26317
Half
13.11 mi13:18:022:20:4510:447:46
11:23
#26373
25K
15.53 mi13:45:322:48:1510:5027:30
11:21
#26240
30K
18.64 mi14:27:123:29:5511:1641:40
13:25
#26482
20M
20.00 mi14:43:003:45:4311:1715:48
11:38
#26351
21M
21.00 mi14:57:324:00:1511:2614:32
14:32
#26395
35K
21.75 mi15:06:184:09:0111:278:46
11:43
#26360
23M
23.00 mi15:21:454:24:2811:3015:27
12:20
#26338
24M
24.00 mi15:32:414:35:2411:2910:56
10:56
#26245
40K
24.85 mi15:43:114:45:5411:3010:30
12:17
#26222
25.2M
25.20 mi15:48:114:50:5411:335:00
14:30
#26238
Finish
26.22 mi15:58:355:01:1811:3010:24
10:12
#26197
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi24611100151001526443(Top 93%)11029(Top 90%)11029(Top 608%)
10K6.21 mi3.10 mi24965-35410212-19710212-19725248(Top 89%)10370(Top 85%)10370(Top 572%)
15K9.32 mi3.11 mi25603-63810559-34710559-34726443(Top 93%)11029(Top 90%)11029(Top 608%)
20K12.43 mi3.11 mi26317-71410957-39810957-39827425(Top 97%)11656(Top 95%)11656(Top 643%)
Half13.11 mi0.68 mi26373-5610993-3610993-3626948(Top 95%)11380(Top 93%)11380(Top 628%)
25K15.53 mi2.42 mi26240+13310915+7810915+7825669(Top 90%)10673(Top 87%)10673(Top 589%)
30K18.64 mi3.11 mi26482-24211091-17611091-17627071(Top 95%)11537(Top 94%)11537(Top 636%)
20M20.00 mi1.36 mi26351+13111037+5411037+5424744(Top 87%)10339(Top 85%)10339(Top 570%)
21M21.00 mi1.00 mi26395-4411068-3111068-3126729(Top 94%)11433(Top 93%)11433(Top 631%)
35K21.75 mi0.75 mi26360+3511060+811060+825419(Top 89%)10808(Top 88%)10808(Top 596%)
23M23.00 mi1.25 mi26338+2211056+411056+425569(Top 90%)10895(Top 89%)10895(Top 601%)
24M24.00 mi1.00 mi26245+9311022+3411022+3423833(Top 84%)10042(Top 82%)10042(Top 554%)
40K24.85 mi0.85 mi26222+2311010+1211010+1225343(Top 89%)10839(Top 89%)10839(Top 598%)
25.2M25.20 mi0.35 mi26238-1611022-1211022-1226723(Top 94%)11528(Top 94%)11528(Top 636%)
Finish26.22 mi1.02 mi26197+4111002+2011002+2023518(Top 83%)9940(Top 81%)9940(Top 548%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 93%
×21stories
+97ft-345ft

Overall

26443

Females

11029

F45-49

11029

5K→10K

3.1 - 6.2 mi

Top 89%
×5stories
+79ft-138ft

Overall

25248

Females

10370

F45-49

10370

10K→15K

6.2 - 9.3 mi

Top 93%
×3stories
+67ft-78ft

Overall

26443

Females

11029

F45-49

11029

15K→20K

9.3 - 12.4 mi

Top 97%
×5stories
+106ft-86ft

Overall

27425

Females

11656

F45-49

11656

20K→Half

12.4 - 13.1 mi

Top 95%
×2stories
+19ft-37ft

Overall

26948

Females

11380

F45-49

11380

Half→25K

13.1 - 15.5 mi

Top 90%
×4stories
+66ft-88ft

Overall

25669

Females

10673

F45-49

10673

25K→30K

15.5 - 18.6 mi

Top 95%
×9stories
+181ft-148ft

Overall

27071

Females

11537

F45-49

11537

30K→20M

18.6 - 20.0 mi

Top 87%
×5stories
+64ft-50ft

Overall

24744

Females

10339

F45-49

10339

20M→21M

20.0 - 21.0 mi

Top 94%
×8stories
+106ft-24ft

Overall

26729

Females

11433

F45-49

11433

21M→35K

21.0 - 21.8 mi

Top 89%
×7stories
+17ft-86ft

Overall

25419

Females

10808

F45-49

10808

35K→23M

21.8 - 23.0 mi

Top 90%
×5stories
+23ft-63ft

Overall

25569

Females

10895

F45-49

10895

23M→24M

23.0 - 24.0 mi

Top 84%
×6stories
+12ft-82ft

Overall

23833

Females

10042

F45-49

10042

24M→40K

24.0 - 24.9 mi

Top 89%
×1story
+6ft-20ft

Overall

25343

Females

10839

F45-49

10839

40K→25.2M

24.9 - 25.2 mi

Top 94%
×1story
+13ft-16ft

Overall

26723

Females

11528

F45-49

11528

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2stories
+22ft-21ft

Overall

23518

Females

9940

F45-49

9940

Passing Analysis

Category:
Athletes Passed
778
Passed By
2364
Net Change
-1586
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24611
5K → 10K85439-354#24611#24965
10K → 15K18656-638#24965#25603
15K → 20K19733-714#25603#26317
20K → Half359-56#26317#26373
Half → 25K16734+133#26373#26240
25K → 30K40282-242#26240#26482
30K → 20M1321+131#26482#26351
20M → 21M3276-44#26351#26395
21M → 35K438+35#26395#26360
35K → 23M4523+22#26360#26338
23M → 24M952+93#26338#26245
24M → 40K3815+23#26245#26222
40K → 25.2M723-16#26222#26238
25.2M → Finish5413+41#26238#26197
TOTALS7782364-1586
📊

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