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BOSTON MARATHON 2025

Lauren Destefano

Bib: 27149•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
30:49
Rank: #25403
Start → 5K
30:49 | 9:55/mi
10K· 6.21 mi
59:50
Rank: #24541 (+862)
5K → 10K
29:01 | 9:20/mi
15K· 9.32 mi
1:29:16
Rank: #24257 (+284)
10K → 15K
29:26 | 9:28/mi
20K· 12.43 mi
2:00:45
Rank: #24345 (-88)
15K → 20K
31:29 | 10:08/mi
Half· 13.11 mi
2:07:21
Rank: #24322 (+23)
20K → Half
6:36 | 9:40/mi
25K· 15.53 mi
2:34:14
Rank: #24569 (-247)
Half → 25K
26:53 | 11:05/mi
30K· 18.64 mi
3:10:25
Rank: #24683 (-114)
25K → 30K
36:11 | 11:39/mi
20M
3:25:12
Rank: #24605 (+78)
30K → 20M
14:47 | 10:53/mi
21M
3:37:16
Rank: #24562 (+43)
20M → 21M
12:04 | 12:04/mi
35K· 21.75 mi
3:45:13
Rank: #24533 (+29)
21M → 35K
7:57 | 10:38/mi
23M
3:58:18
Rank: #24399 (+134)
35K → 23M
13:05 | 10:27/mi
24M
4:08:37
Rank: #24305 (+94)
23M → 24M
10:19 | 10:19/mi
40K· 24.85 mi
4:17:40
Rank: #24248 (+57)
24M → 40K
9:03 | 10:35/mi
25.2M
4:22:30
Rank: #24285 (-37)
40K → 25.2M
4:50 | 14:01/mi
Finish· 26.22 mi
4:31:46
Rank: #24167 (+118)
25.2M → Finish
9:16 | 9:06/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:07:21
Pace9:43 /mi
2nd Half
Distance13.11 mi
Time2:24:25
Pace11:01 /mi
📊Positive Split: 13.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:4730:499:5530:49
9:55
-
10K
6.21 mi12:16:4859:509:3829:01
9:20
-0:35
15K
9.32 mi12:46:141:29:169:3529:26
9:28
+0:08
20K
12.43 mi13:17:432:00:459:4331:29
10:08
+0:40
Half
13.11 mi13:24:192:07:219:436:36
9:40
-0:28
25K
15.53 mi13:51:122:34:149:5626:53
11:05
+1:25
30K
18.64 mi14:27:233:10:2510:1336:11
11:39
+0:34
20M
20.00 mi14:42:103:25:1210:1614:47
10:53
-0:46
21M
21.00 mi14:54:143:37:1610:2112:04
12:04
+1:11
35K
21.75 mi15:02:113:45:1310:217:57
10:38
-1:26
23M
23.00 mi15:15:163:58:1810:2213:05
10:27
-0:11
24M
24.00 mi15:25:354:08:3710:2210:19
10:19
-0:08
40K
24.85 mi15:34:384:17:4010:229:03
10:35
+0:16
25.2M
25.20 mi15:39:284:22:3010:254:50
14:01
+3:26
Finish
26.22 mi15:48:444:31:4610:229:16
9:06
-4:55

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

9:06 /mi

Average Pace

10:22 /mi

Slowest Pace

14:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:14:19

27% of race

Time at Steady Pace

1:57:29

43% of race

Time at Slower Pace

1:19:58

29% of race

Average Pace: 10:22 /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 mi11:47:4730:499:5530:49
9:55
#25403
10K
6.21 mi12:16:4859:509:3829:01
9:20
#24541
15K
9.32 mi12:46:141:29:169:3529:26
9:28
#24257
20K
12.43 mi13:17:432:00:459:4331:29
10:08
#24345
Half
13.11 mi13:24:192:07:219:436:36
9:40
#24322
25K
15.53 mi13:51:122:34:149:5626:53
11:05
#24569
30K
18.64 mi14:27:233:10:2510:1336:11
11:39
#24683
20M
20.00 mi14:42:103:25:1210:1614:47
10:53
#24605
21M
21.00 mi14:54:143:37:1610:2112:04
12:04
#24562
35K
21.75 mi15:02:113:45:1310:217:57
10:38
#24533
23M
23.00 mi15:15:163:58:1810:2213:05
10:27
#24399
24M
24.00 mi15:25:354:08:3710:2210:19
10:19
#24305
40K
24.85 mi15:34:384:17:4010:229:03
10:35
#24248
25.2M
25.20 mi15:39:284:22:3010:254:50
14:01
#24285
Finish
26.22 mi15:48:444:31:4610:229:16
9:06
#24167
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25403104281042823678(Top 83%)9478(Top 78%)9478(Top 173%)
10K6.21 mi3.10 mi24541+8629972+4569972+45623659(Top 83%)9495(Top 78%)9495(Top 174%)
15K9.32 mi3.11 mi24257+2849821+1519821+15123678(Top 83%)9478(Top 78%)9478(Top 173%)
20K12.43 mi3.11 mi24345-889887-669887-6624498(Top 86%)9982(Top 82%)9982(Top 183%)
Half13.11 mi0.68 mi24322+239882+59882+524059(Top 85%)9742(Top 80%)9742(Top 178%)
25K15.53 mi2.42 mi24569-24710012-13010012-13025332(Top 89%)10478(Top 86%)10478(Top 192%)
30K18.64 mi3.11 mi24683-11410103-9110103-9125064(Top 88%)10441(Top 85%)10441(Top 191%)
20M20.00 mi1.36 mi24605+7810074+2910074+2923348(Top 82%)9600(Top 79%)9600(Top 176%)
21M21.00 mi1.00 mi24562+4310068+610068+623717(Top 83%)9876(Top 81%)9876(Top 181%)
35K21.75 mi0.75 mi24533+2910062+610062+623443(Top 83%)9775(Top 80%)9775(Top 179%)
23M23.00 mi1.25 mi24399+13410003+5910003+5921903(Top 77%)9023(Top 74%)9023(Top 165%)
24M24.00 mi1.00 mi24305+949961+429961+4222314(Top 79%)9303(Top 76%)9303(Top 170%)
40K24.85 mi0.85 mi24248+579949+129949+1222177(Top 78%)9299(Top 76%)9299(Top 170%)
25.2M25.20 mi0.35 mi24285-379967-189967-1826323(Top 93%)11344(Top 93%)11344(Top 207%)
Finish26.22 mi1.02 mi24167+1189925+429925+4219532(Top 69%)7890(Top 65%)7890(Top 144%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21stories
+97ft-345ft

Overall

23678

Females

9478

F18-39

9478

5K→10K

3.1 - 6.2 mi

Top 83%
×5stories
+79ft-138ft

Overall

23659

Females

9495

F18-39

9495

10K→15K

6.2 - 9.3 mi

Top 83%
×3stories
+67ft-78ft

Overall

23678

Females

9478

F18-39

9478

15K→20K

9.3 - 12.4 mi

Top 86%
×5stories
+106ft-86ft

Overall

24498

Females

9982

F18-39

9982

20K→Half

12.4 - 13.1 mi

Top 85%
×2stories
+19ft-37ft

Overall

24059

Females

9742

F18-39

9742

Half→25K

13.1 - 15.5 mi

Top 89%
×4stories
+66ft-88ft

Overall

25332

Females

10478

F18-39

10478

25K→30K

15.5 - 18.6 mi

Top 88%
×9stories
+181ft-148ft

Overall

25064

Females

10441

F18-39

10441

30K→20M

18.6 - 20.0 mi

Top 82%
×5stories
+64ft-50ft

Overall

23348

Females

9600

F18-39

9600

20M→21M

20.0 - 21.0 mi

Top 83%
×8stories
+106ft-24ft

Overall

23717

Females

9876

F18-39

9876

21M→35K

21.0 - 21.8 mi

Top 83%
×7stories
+17ft-86ft

Overall

23443

Females

9775

F18-39

9775

35K→23M

21.8 - 23.0 mi

Top 77%
×5stories
+23ft-63ft

Overall

21903

Females

9023

F18-39

9023

23M→24M

23.0 - 24.0 mi

Top 79%
×6stories
+12ft-82ft

Overall

22314

Females

9303

F18-39

9303

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

22177

Females

9299

F18-39

9299

40K→25.2M

24.9 - 25.2 mi

Top 93%
×1story
+13ft-16ft

Overall

26323

Females

11344

F18-39

11344

25.2M→Finish

25.2 - 26.2 mi

Top 69%
×2stories
+22ft-21ft

Overall

19532

Females

7890

F18-39

7890

Passing Analysis

Category:
Athletes Passed
2126
Passed By
890
Net Change
+1236
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25403
5K → 10K87210+862#25403#24541
10K → 15K32036+284#24541#24257
15K → 20K105193-88#24257#24345
20K → Half329+23#24345#24322
Half → 25K46293-247#24322#24569
25K → 30K93207-114#24569#24683
30K → 20M9719+78#24683#24605
20M → 21M7633+43#24605#24562
21M → 35K4718+29#24562#24533
35K → 23M14410+134#24533#24399
23M → 24M1028+94#24399#24305
24M → 40K6912+57#24305#24248
40K → 25.2M542-37#24248#24285
25.2M → Finish1180+118#24285#24167
TOTALS2126890+1236
📊

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