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BOSTON MARATHON 2025

Laura Carlson

Bib: 24098•F

DE

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 46%
Division (F55-59)
#0 / 994
Top 26%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:17
Rank: #19655
Start → 5K
26:17 | 8:28/mi
10K· 6.21 mi
53:09
Rank: #20162 (-507)
5K → 10K
26:52 | 8:39/mi
15K· 9.32 mi
1:20:07
Rank: #20203 (-41)
10K → 15K
26:58 | 8:41/mi
20K· 12.43 mi
1:46:51
Rank: #19856 (+347)
15K → 20K
26:44 | 8:36/mi
Half· 13.11 mi
1:52:37
Rank: #19820 (+36)
20K → Half
5:46 | 8:27/mi
25K· 15.53 mi
2:13:39
Rank: #19538 (+282)
Half → 25K
21:02 | 8:41/mi
30K· 18.64 mi
2:41:07
Rank: #18999 (+539)
25K → 30K
27:28 | 8:50/mi
20M
2:53:24
Rank: #18846 (+153)
30K → 20M
12:17 | 9:02/mi
21M
3:03:11
Rank: #18752 (+94)
20M → 21M
9:47 | 9:47/mi
35K· 21.75 mi
3:09:46
Rank: #18687 (+65)
21M → 35K
6:35 | 8:48/mi
23M
3:21:11
Rank: #18562 (+125)
35K → 23M
11:25 | 9:07/mi
24M
3:29:56
Rank: #18433 (+129)
23M → 24M
8:45 | 8:45/mi
40K· 24.85 mi
3:37:39
Rank: #18359 (+74)
24M → 40K
7:43 | 9:02/mi
25.2M
3:41:00
Rank: #18311 (+48)
40K → 25.2M
3:21 | 9:43/mi
Finish· 26.22 mi
3:49:45
Rank: #18264 (+47)
25.2M → Finish
8:45 | 8:35/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:37
Pace8:35 /mi
2nd Half
Distance13.11 mi
Time1:57:08
Pace8:56 /mi
📊Positive Split: 4.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:5626:178:2826:17
8:28
-
10K
6.21 mi11:51:4853:098:3326:52
8:39
+0:11
15K
9.32 mi12:18:461:20:078:3626:58
8:41
+0:02
20K
12.43 mi12:45:301:46:518:3626:44
8:36
-0:05
Half
13.11 mi12:51:161:52:378:355:46
8:27
-0:09
25K
15.53 mi13:12:182:13:398:3621:02
8:41
+0:14
30K
18.64 mi13:39:462:41:078:3927:28
8:50
+0:09
20M
20.00 mi13:52:032:53:248:4012:17
9:02
+0:12
21M
21.00 mi14:01:503:03:118:439:47
9:47
+0:45
35K
21.75 mi14:08:253:09:468:446:35
8:48
-0:59
23M
23.00 mi14:19:503:21:118:4511:25
9:07
+0:19
24M
24.00 mi14:28:353:29:568:458:45
8:45
-0:22
40K
24.85 mi14:36:183:37:398:457:43
9:02
+0:17
25.2M
25.20 mi14:39:393:41:008:463:21
9:43
+0:41
Finish
26.22 mi14:48:243:49:458:468:45
8:35
-1:08

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

8:27 /mi

Average Pace

8:46 /mi

Slowest Pace

9:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:36:37

94% of race

Time at Steady Pace

13:08

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:46 /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 mi11:24:5626:178:2826:17
8:28
#19655
10K
6.21 mi11:51:4853:098:3326:52
8:39
#20162
15K
9.32 mi12:18:461:20:078:3626:58
8:41
#20203
20K
12.43 mi12:45:301:46:518:3626:44
8:36
#19856
Half
13.11 mi12:51:161:52:378:355:46
8:27
#19820
25K
15.53 mi13:12:182:13:398:3621:02
8:41
#19538
30K
18.64 mi13:39:462:41:078:3927:28
8:50
#18999
20M
20.00 mi13:52:032:53:248:4012:17
9:02
#18846
21M
21.00 mi14:01:503:03:118:439:47
9:47
#18752
35K
21.75 mi14:08:253:09:468:446:35
8:48
#18687
23M
23.00 mi14:19:503:21:118:4511:25
9:07
#18562
24M
24.00 mi14:28:353:29:568:458:45
8:45
#18433
40K
24.85 mi14:36:183:37:398:457:43
9:02
#18359
25.2M
25.20 mi14:39:393:41:008:463:21
9:43
#18311
Finish
26.22 mi14:48:243:49:458:468:45
8:35
#18264
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi196557294729420369(Top 72%)7635(Top 62%)7635(Top 768%)
10K6.21 mi3.10 mi20162-5077572-2787572-27820589(Top 72%)7794(Top 64%)7794(Top 784%)
15K9.32 mi3.11 mi20203-417585-137585-1320369(Top 72%)7635(Top 62%)7635(Top 768%)
20K12.43 mi3.11 mi19856+3477394+1917394+19118890(Top 67%)6848(Top 56%)6848(Top 689%)
Half13.11 mi0.68 mi19820+367374+207374+2018932(Top 67%)6855(Top 56%)6855(Top 690%)
25K15.53 mi2.42 mi19538+2827219+1557219+15518255(Top 64%)6568(Top 54%)6568(Top 661%)
30K18.64 mi3.11 mi18999+5396950+2696950+26916855(Top 59%)5958(Top 49%)5958(Top 599%)
20M20.00 mi1.36 mi18846+1536882+686882+6817035(Top 60%)6157(Top 50%)6157(Top 619%)
21M21.00 mi1.00 mi18752+946864+186864+1817426(Top 61%)6496(Top 53%)6496(Top 654%)
35K21.75 mi0.75 mi18687+656841+236841+2317281(Top 61%)6516(Top 53%)6516(Top 656%)
23M23.00 mi1.25 mi18562+1256801+406801+4016944(Top 60%)6419(Top 52%)6419(Top 646%)
24M24.00 mi1.00 mi18433+1296757+446757+4416064(Top 57%)5973(Top 49%)5973(Top 601%)
40K24.85 mi0.85 mi18359+746745+126745+1216485(Top 58%)6308(Top 52%)6308(Top 635%)
25.2M25.20 mi0.35 mi18311+486732+136732+1315778(Top 56%)5989(Top 49%)5989(Top 603%)
Finish26.22 mi1.02 mi18264+476725+76725+716792(Top 59%)6453(Top 53%)6453(Top 649%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21stories
+97ft-345ft

Overall

20369

Females

7635

F55-59

7635

5K→10K

3.1 - 6.2 mi

Top 72%
×5stories
+79ft-138ft

Overall

20589

Females

7794

F55-59

7794

10K→15K

6.2 - 9.3 mi

Top 72%
×3stories
+67ft-78ft

Overall

20369

Females

7635

F55-59

7635

15K→20K

9.3 - 12.4 mi

Top 67%
×5stories
+106ft-86ft

Overall

18890

Females

6848

F55-59

6848

20K→Half

12.4 - 13.1 mi

Top 67%
×2stories
+19ft-37ft

Overall

18932

Females

6855

F55-59

6855

Half→25K

13.1 - 15.5 mi

Top 64%
×4stories
+66ft-88ft

Overall

18255

Females

6568

F55-59

6568

25K→30K

15.5 - 18.6 mi

Top 59%
×9stories
+181ft-148ft

Overall

16855

Females

5958

F55-59

5958

30K→20M

18.6 - 20.0 mi

Top 60%
×5stories
+64ft-50ft

Overall

17035

Females

6157

F55-59

6157

20M→21M

20.0 - 21.0 mi

Top 61%
×8stories
+106ft-24ft

Overall

17426

Females

6496

F55-59

6496

21M→35K

21.0 - 21.8 mi

Top 61%
×7stories
+17ft-86ft

Overall

17281

Females

6516

F55-59

6516

35K→23M

21.8 - 23.0 mi

Top 60%
×5stories
+23ft-63ft

Overall

16944

Females

6419

F55-59

6419

23M→24M

23.0 - 24.0 mi

Top 57%
×6stories
+12ft-82ft

Overall

16064

Females

5973

F55-59

5973

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

16485

Females

6308

F55-59

6308

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

15778

Females

5989

F55-59

5989

25.2M→Finish

25.2 - 26.2 mi

Top 59%
×2stories
+22ft-21ft

Overall

16792

Females

6453

F55-59

6453

Passing Analysis

Category:
Athletes Passed
2556
Passed By
1165
Net Change
+1391
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19655
5K → 10K98605-507#19655#20162
10K → 15K164205-41#20162#20203
15K → 20K38740+347#20203#19856
20K → Half4610+36#19856#19820
Half → 25K31028+282#19820#19538
25K → 30K56324+539#19538#18999
30K → 20M18835+153#18999#18846
20M → 21M15258+94#18846#18752
21M → 35K8419+65#18752#18687
35K → 23M16944+125#18687#18562
23M → 24M14819+129#18562#18433
24M → 40K10834+74#18433#18359
40K → 25.2M546+48#18359#18311
25.2M → Finish8538+47#18311#18264
TOTALS25561165+1391
📊

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