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BOSTON MARATHON 2025

Lauren Isles

Bib: 13078•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 46%
Gender (Female)
#0 / 12228
Top 31%
Division (F18-39)
#0 / 5469
Top 50%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:05
Rank: #8735
Start → 5K
7:06/mi
22:05 split
10K· 6.21 mi
44:19
Rank: #8894 (-159)
5K → 10K
7:09/mi
22:14 split
15K· 9.32 mi
1:07:16
Rank: #9476 (-582)
10K → 15K
7:23/mi
22:57 split
20K· 12.43 mi
1:31:19
Rank: #10300 (-824)
15K → 20K
7:44/mi
24:03 split
Half· 13.11 mi
1:36:40
Rank: #10522 (-222)
20K → Half
7:50/mi
5:21 split
25K· 15.53 mi
1:56:21
Rank: #11250 (-728)
Half → 25K
8:07/mi
19:41 split
30K· 18.64 mi
2:22:03
Rank: #11600 (-350)
25K → 30K
8:16/mi
25:42 split
20M
2:33:44
Rank: #11784 (-184)
30K → 20M
8:36/mi
11:41 split
21M
2:42:46
Rank: #11894 (-110)
20M → 21M
9:02/mi
9:02 split
35K· 21.75 mi
2:49:15
Rank: #12082 (-188)
21M → 35K
8:40/mi
6:29 split
23M
3:00:40
Rank: #12389 (-307)
35K → 23M
9:07/mi
11:25 split
24M
3:09:41
Rank: #12672 (-283)
23M → 24M
9:01/mi
9:01 split
40K· 24.85 mi
3:17:37
Rank: #12908 (-236)
24M → 40K
9:17/mi
7:56 split
25.2M
3:21:01
Rank: #12981 (-73)
40K → 25.2M
9:52/mi
3:24 split
Finish· 26.22 mi
3:29:43
Rank: #13136 (-155)
25.2M → Finish
8:32/mi
8:42 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:40
Pace7:22 /mi
2nd Half
Distance13.11 mi
Time1:53:03
Pace8:37 /mi
📊Positive Split: 16.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:1122:057:0622:05
7:06
-
10K
6.21 mi11:13:2544:197:0822:14
7:09
+0:03
15K
9.32 mi11:36:221:07:167:1322:57
7:23
+0:14
20K
12.43 mi12:00:251:31:197:2124:03
7:44
+0:21
Half
13.11 mi12:05:461:36:407:225:21
7:50
+0:06
25K
15.53 mi12:25:271:56:217:2919:41
8:07
+0:17
30K
18.64 mi12:51:092:22:037:3725:42
8:16
+0:09
20M
20.00 mi13:02:502:33:447:4111:41
8:36
+0:20
21M
21.00 mi13:11:522:42:467:459:02
9:02
+0:26
35K
21.75 mi13:18:212:49:157:476:29
8:40
-0:22
23M
23.00 mi13:29:463:00:407:5111:25
9:07
+0:27
24M
24.00 mi13:38:473:09:417:549:01
9:01
-0:06
40K
24.85 mi13:46:433:17:377:577:56
9:17
+0:16
25.2M
25.20 mi13:50:073:21:017:593:24
9:52
+0:35
Finish
26.22 mi13:58:493:29:438:008:42
8:32
-1:20

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

7:06 /mi

Average Pace

8:00 /mi

Slowest Pace

9:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:21

55% of race

Time at Steady Pace

52:34

25% of race

Time at Slower Pace

40:48

19% of race

Average Pace: 8:00 /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 mi10:51:1122:057:0622:05
7:06
#8735
10K
6.21 mi11:13:2544:197:0822:14
7:09
#8894
15K
9.32 mi11:36:221:07:167:1322:57
7:23
#9476
20K
12.43 mi12:00:251:31:197:2124:03
7:44
#10300
Half
13.11 mi12:05:461:36:407:225:21
7:50
#10522
25K
15.53 mi12:25:271:56:217:2919:41
8:07
#11250
30K
18.64 mi12:51:092:22:037:3725:42
8:16
#11600
20M
20.00 mi13:02:502:33:447:4111:41
8:36
#11784
21M
21.00 mi13:11:522:42:467:459:02
9:02
#11894
35K
21.75 mi13:18:212:49:157:476:29
8:40
#12082
23M
23.00 mi13:29:463:00:407:5111:25
9:07
#12389
24M
24.00 mi13:38:473:09:417:549:01
9:01
#12672
40K
24.85 mi13:46:433:17:377:577:56
9:17
#12908
25.2M
25.20 mi13:50:073:21:017:593:24
9:52
#12981
Finish
26.22 mi13:58:493:29:438:008:42
8:32
#13136
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi87351262126210773(Top 38%)2260(Top 18%)2260(Top 41%)
10K6.21 mi3.10 mi8894-1591344-821344-829144(Top 32%)1439(Top 12%)1439(Top 26%)
15K9.32 mi3.11 mi9476-5821591-2471591-24710773(Top 38%)2260(Top 18%)2260(Top 41%)
20K12.43 mi3.11 mi10300-8242014-4232014-42312782(Top 45%)3431(Top 28%)3431(Top 63%)
Half13.11 mi0.68 mi10522-2222110-962110-9614631(Top 52%)4398(Top 36%)4398(Top 80%)
25K15.53 mi2.42 mi11250-7282517-4072517-40714757(Top 52%)4613(Top 38%)4613(Top 84%)
30K18.64 mi3.11 mi11600-3502785-2682785-26813318(Top 47%)4009(Top 33%)4009(Top 73%)
20M20.00 mi1.36 mi11784-1842915-1302915-13014419(Top 51%)4729(Top 39%)4729(Top 86%)
21M21.00 mi1.00 mi11894-1103019-1043019-10413717(Top 48%)4470(Top 37%)4470(Top 82%)
35K21.75 mi0.75 mi12082-1883144-1253144-12516480(Top 58%)6039(Top 49%)6039(Top 110%)
23M23.00 mi1.25 mi12389-3073344-2003344-20016923(Top 60%)6398(Top 52%)6398(Top 117%)
24M24.00 mi1.00 mi12672-2833511-1673511-16717454(Top 61%)6731(Top 55%)6731(Top 123%)
40K24.85 mi0.85 mi12908-2363685-1743685-17417746(Top 62%)6988(Top 57%)6988(Top 128%)
25.2M25.20 mi0.35 mi12981-733731-463731-4616396(Top 58%)6257(Top 51%)6257(Top 114%)
Finish26.22 mi1.02 mi13136-1553839-1083839-10816459(Top 58%)6269(Top 51%)6269(Top 115%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21story building
+97ft-345ft

Overall

10773

Females

2260

F18-39

2260

5K→10K

3.1 - 6.2 mi

Top 32%
×5story building
+79ft-138ft

Overall

9144

Females

1439

F18-39

1439

10K→15K

6.2 - 9.3 mi

Top 38%
×3story building
+67ft-78ft

Overall

10773

Females

2260

F18-39

2260

15K→20K

9.3 - 12.4 mi

Top 45%
×5story building
+106ft-86ft

Overall

12782

Females

3431

F18-39

3431

20K→Half

12.4 - 13.1 mi

Top 52%
×2story building
+19ft-37ft

Overall

14631

Females

4398

F18-39

4398

Half→25K

13.1 - 15.5 mi

Top 52%
×4story building
+66ft-88ft

Overall

14757

Females

4613

F18-39

4613

25K→30K

15.5 - 18.6 mi

Top 47%
×9story building
+181ft-148ft

Overall

13318

Females

4009

F18-39

4009

30K→20M

18.6 - 20.0 mi

Top 51%
×5story building
+64ft-50ft

Overall

14419

Females

4729

F18-39

4729

20M→21M

20.0 - 21.0 mi

Top 48%
×8story building
+106ft-24ft

Overall

13717

Females

4470

F18-39

4470

21M→35K

21.0 - 21.8 mi

Top 58%
×7story building
+17ft-86ft

Overall

16480

Females

6039

F18-39

6039

35K→23M

21.8 - 23.0 mi

Top 60%
×5story building
+23ft-63ft

Overall

16923

Females

6398

F18-39

6398

23M→24M

23.0 - 24.0 mi

Top 61%
×6story building
+12ft-82ft

Overall

17454

Females

6731

F18-39

6731

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

17746

Females

6988

F18-39

6988

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1story
+13ft-16ft

Overall

16396

Females

6257

F18-39

6257

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2story building
+22ft-21ft

Overall

16459

Females

6269

F18-39

6269

Passing Analysis

Category:
Athletes Passed
728
Passed By
5127
Net Change
-4401
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8735
5K → 10K136295-159#8735#8894
10K → 15K45627-582#8894#9476
15K → 20K43865-824#9476#10300
20K → Half7229-222#10300#10522
Half → 25K52780-728#10522#11250
25K → 30K127477-350#11250#11600
30K → 20M73257-184#11600#11784
20M → 21M77187-110#11784#11894
21M → 35K24212-188#11894#12082
35K → 23M48355-307#12082#12389
23M → 24M23306-283#12389#12672
24M → 40K31267-236#12672#12908
40K → 25.2M1790-73#12908#12981
25.2M → Finish25180-155#12981#13136
TOTALS7285127-4401
📊

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