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BOSTON MARATHON 2025

Natasha Leslie

Bib: 29375•F

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
31:10
Rank: #25641
Start → 5K
31:10 | 10:02/mi
10K· 6.21 mi
1:02:15
Rank: #25486 (+155)
5K → 10K
31:05 | 10:00/mi
15K· 9.32 mi
1:33:27
Rank: #25352 (+134)
10K → 15K
31:12 | 10:03/mi
20K· 12.43 mi
2:06:48
Rank: #25438 (-86)
15K → 20K
33:21 | 10:44/mi
Half· 13.11 mi
2:13:44
Rank: #25412 (+26)
20K → Half
6:56 | 10:10/mi
25K· 15.53 mi
2:39:26
Rank: #25245 (+167)
Half → 25K
25:42 | 10:36/mi
30K· 18.64 mi
3:14:53
Rank: #25142 (+103)
25K → 30K
35:27 | 11:25/mi
20M
3:30:58
Rank: #25151 (-9)
30K → 20M
16:05 | 11:50/mi
21M
3:42:54
Rank: #25077 (+74)
20M → 21M
11:56 | 11:56/mi
35K· 21.75 mi
3:50:20
Rank: #25004 (+73)
21M → 35K
7:26 | 9:56/mi
23M
4:03:25
Rank: #24854 (+150)
35K → 23M
13:05 | 10:27/mi
24M
4:13:48
Rank: #24773 (+81)
23M → 24M
10:23 | 10:23/mi
40K· 24.85 mi
4:23:53
Rank: #24771 (+2)
24M → 40K
10:05 | 11:48/mi
25.2M
4:27:42
Rank: #24724 (+47)
40K → 25.2M
3:49 | 11:04/mi
Finish· 26.22 mi
4:37:30
Rank: #24653 (+71)
25.2M → Finish
9:48 | 9:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:13:44
Pace10:12 /mi
2nd Half
Distance13.11 mi
Time2:23:46
Pace10:58 /mi
📊Positive Split: 7.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:1131:1010:0231:10
10:02
-
10K
6.21 mi12:25:161:02:1510:0131:05
10:00
-0:02
15K
9.32 mi12:56:281:33:2710:0231:12
10:03
+0:03
20K
12.43 mi13:29:492:06:4810:1233:21
10:44
+0:41
Half
13.11 mi13:36:452:13:4410:126:56
10:10
-0:34
25K
15.53 mi14:02:272:39:2610:1625:42
10:36
+0:26
30K
18.64 mi14:37:543:14:5310:2735:27
11:25
+0:49
20M
20.00 mi14:53:593:30:5810:3316:05
11:50
+0:25
21M
21.00 mi15:05:553:42:5410:3711:56
11:56
+0:06
35K
21.75 mi15:13:213:50:2010:357:26
9:56
-2:00
23M
23.00 mi15:26:264:03:2510:3513:05
10:27
+0:31
24M
24.00 mi15:36:494:13:4810:3510:23
10:23
-0:04
40K
24.85 mi15:46:544:23:5310:3710:05
11:48
+1:25
25.2M
25.20 mi15:50:434:27:4210:373:49
11:04
-0:44
Finish
26.22 mi16:00:314:37:3010:359:48
9:37
-1:27

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

10:35 /mi

Slowest Pace

11:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:50:41

40% of race

Time at Steady Pace

1:29:27

32% of race

Time at Slower Pace

1:17:22

28% of race

Average Pace: 10:35 /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 mi11:54:1131:1010:0231:10
10:02
#25641
10K
6.21 mi12:25:161:02:1510:0131:05
10:00
#25486
15K
9.32 mi12:56:281:33:2710:0231:12
10:03
#25352
20K
12.43 mi13:29:492:06:4810:1233:21
10:44
#25438
Half
13.11 mi13:36:452:13:4410:126:56
10:10
#25412
25K
15.53 mi14:02:272:39:2610:1625:42
10:36
#25245
30K
18.64 mi14:37:543:14:5310:2735:27
11:25
#25142
20M
20.00 mi14:53:593:30:5810:3316:05
11:50
#25151
21M
21.00 mi15:05:553:42:5410:3711:56
11:56
#25077
35K
21.75 mi15:13:213:50:2010:357:26
9:56
#25004
23M
23.00 mi15:26:264:03:2510:3513:05
10:27
#24854
24M
24.00 mi15:36:494:13:4810:3510:23
10:23
#24773
40K
24.85 mi15:46:544:23:5310:3710:05
11:48
#24771
25.2M
25.20 mi15:50:434:27:4210:373:49
11:04
#24724
Finish
26.22 mi16:00:314:37:3010:359:48
9:37
#24653
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25641105541055425068(Top 88%)10253(Top 84%)10253(Top 187%)
10K6.21 mi3.10 mi25486+15510491+6310491+6325327(Top 89%)10418(Top 85%)10418(Top 190%)
15K9.32 mi3.11 mi25352+13410416+7510416+7525068(Top 88%)10253(Top 84%)10253(Top 187%)
20K12.43 mi3.11 mi25438-8610478-6210478-6225595(Top 90%)10585(Top 87%)10585(Top 194%)
Half13.11 mi0.68 mi25412+2610462+1610462+1625141(Top 89%)10340(Top 85%)10340(Top 189%)
25K15.53 mi2.42 mi25245+16710388+7410388+7424543(Top 86%)10041(Top 82%)10041(Top 184%)
30K18.64 mi3.11 mi25142+10310359+2910359+2924713(Top 87%)10245(Top 84%)10245(Top 187%)
20M20.00 mi1.36 mi25151-910378-1910378-1925018(Top 88%)10481(Top 86%)10481(Top 192%)
21M21.00 mi1.00 mi25077+7410345+3310345+3323461(Top 83%)9747(Top 80%)9747(Top 178%)
35K21.75 mi0.75 mi25004+7310314+3110314+3121692(Top 76%)8879(Top 73%)8879(Top 162%)
23M23.00 mi1.25 mi24854+15010247+6710247+6721863(Top 77%)9002(Top 74%)9002(Top 165%)
24M24.00 mi1.00 mi24773+8110220+2710220+2722463(Top 79%)9376(Top 77%)9376(Top 171%)
40K24.85 mi0.85 mi24771+210235-1510235-1524608(Top 87%)10480(Top 86%)10480(Top 192%)
25.2M25.20 mi0.35 mi24724+4710215+2010215+2020780(Top 73%)8564(Top 70%)8564(Top 157%)
Finish26.22 mi1.02 mi24653+7110180+3510180+3521582(Top 76%)8958(Top 73%)8958(Top 164%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21stories
+97ft-345ft

Overall

25068

Females

10253

F18-39

10253

5K→10K

3.1 - 6.2 mi

Top 89%
×5stories
+79ft-138ft

Overall

25327

Females

10418

F18-39

10418

10K→15K

6.2 - 9.3 mi

Top 88%
×3stories
+67ft-78ft

Overall

25068

Females

10253

F18-39

10253

15K→20K

9.3 - 12.4 mi

Top 90%
×5stories
+106ft-86ft

Overall

25595

Females

10585

F18-39

10585

20K→Half

12.4 - 13.1 mi

Top 89%
×2stories
+19ft-37ft

Overall

25141

Females

10340

F18-39

10340

Half→25K

13.1 - 15.5 mi

Top 86%
×4stories
+66ft-88ft

Overall

24543

Females

10041

F18-39

10041

25K→30K

15.5 - 18.6 mi

Top 87%
×9stories
+181ft-148ft

Overall

24713

Females

10245

F18-39

10245

30K→20M

18.6 - 20.0 mi

Top 88%
×5stories
+64ft-50ft

Overall

25018

Females

10481

F18-39

10481

20M→21M

20.0 - 21.0 mi

Top 83%
×8stories
+106ft-24ft

Overall

23461

Females

9747

F18-39

9747

21M→35K

21.0 - 21.8 mi

Top 76%
×7stories
+17ft-86ft

Overall

21692

Females

8879

F18-39

8879

35K→23M

21.8 - 23.0 mi

Top 77%
×5stories
+23ft-63ft

Overall

21863

Females

9002

F18-39

9002

23M→24M

23.0 - 24.0 mi

Top 79%
×6stories
+12ft-82ft

Overall

22463

Females

9376

F18-39

9376

24M→40K

24.0 - 24.9 mi

Top 87%
×1story
+6ft-20ft

Overall

24608

Females

10480

F18-39

10480

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

20780

Females

8564

F18-39

8564

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2stories
+22ft-21ft

Overall

21582

Females

8958

F18-39

8958

Passing Analysis

Category:
Athletes Passed
1592
Passed By
604
Net Change
+988
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25641
5K → 10K274119+155#25641#25486
10K → 15K20268+134#25486#25352
15K → 20K93179-86#25352#25438
20K → Half348+26#25438#25412
Half → 25K19427+167#25412#25245
25K → 30K18178+103#25245#25142
30K → 20M5059-9#25142#25151
20M → 21M9622+74#25151#25077
21M → 35K741+73#25077#25004
35K → 23M1511+150#25004#24854
23M → 24M843+81#24854#24773
24M → 40K3432+2#24773#24771
40K → 25.2M481+47#24771#24724
25.2M → Finish776+71#24724#24653
TOTALS1592604+988
📊

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