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BOSTON MARATHON 2025

Lauren Stanfield

Bib: 19639•F

NC

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 50%
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
25:38
Rank: #18430
Start → 5K
25:38 | 8:15/mi
10K· 6.21 mi
51:20
Rank: #18388 (+42)
5K → 10K
25:42 | 8:16/mi
15K· 9.32 mi
1:16:42
Rank: #17960 (+428)
10K → 15K
25:22 | 8:10/mi
20K· 12.43 mi
1:42:37
Rank: #17741 (+219)
15K → 20K
25:55 | 8:21/mi
Half· 13.11 mi
1:48:17
Rank: #17739 (+2)
20K → Half
5:40 | 8:18/mi
25K· 15.53 mi
2:08:42
Rank: #17507 (+232)
Half → 25K
20:25 | 8:25/mi
30K· 18.64 mi
2:35:37
Rank: #17130 (+377)
25K → 30K
26:55 | 8:40/mi
20M
2:47:28
Rank: #16974 (+156)
30K → 20M
11:51 | 8:43/mi
21M
2:56:23
Rank: #16709 (+265)
20M → 21M
8:55 | 8:55/mi
35K· 21.75 mi
3:02:41
Rank: #16618 (+91)
21M → 35K
6:18 | 8:25/mi
23M
3:14:54
Rank: #16846 (-228)
35K → 23M
12:13 | 9:45/mi
24M
3:25:11
Rank: #17215 (-369)
23M → 24M
10:17 | 10:17/mi
40K· 24.85 mi
3:32:58
Rank: #17199 (+16)
24M → 40K
7:47 | 9:06/mi
25.2M
3:36:23
Rank: #17193 (+6)
40K → 25.2M
3:25 | 9:54/mi
Finish· 26.22 mi
3:44:57
Rank: #17126 (+67)
25.2M → Finish
8:34 | 8:24/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:17
Pace8:16 /mi
2nd Half
Distance13.11 mi
Time1:56:40
Pace8:54 /mi
📊Positive Split: 7.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:4225:388:1525:38
8:15
-
10K
6.21 mi11:43:2451:208:1625:42
8:16
+0:01
15K
9.32 mi12:08:461:16:428:1425:22
8:10
-0:06
20K
12.43 mi12:34:411:42:378:1525:55
8:21
+0:11
Half
13.11 mi12:40:211:48:178:165:40
8:18
-0:03
25K
15.53 mi13:00:462:08:428:1720:25
8:25
+0:07
30K
18.64 mi13:27:412:35:378:2126:55
8:40
+0:15
20M
20.00 mi13:39:322:47:288:2211:51
8:43
+0:03
21M
21.00 mi13:48:272:56:238:248:55
8:55
+0:12
35K
21.75 mi13:54:453:02:418:246:18
8:25
-0:30
23M
23.00 mi14:06:583:14:548:2812:13
9:45
+1:20
24M
24.00 mi14:17:153:25:118:3310:17
10:17
+0:32
40K
24.85 mi14:25:023:32:588:347:47
9:06
-1:11
25.2M
25.20 mi14:28:273:36:238:353:25
9:54
+0:48
Finish
26.22 mi14:37:013:44:578:358:34
8:24
-1:30

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

8:10 /mi

Average Pace

8:35 /mi

Slowest Pace

10:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:02:20

81% of race

Time at Slower Pace

42:37

19% of race

Average Pace: 8:35 /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 mi11:17:4225:388:1525:38
8:15
#18430
10K
6.21 mi11:43:2451:208:1625:42
8:16
#18388
15K
9.32 mi12:08:461:16:428:1425:22
8:10
#17960
20K
12.43 mi12:34:411:42:378:1525:55
8:21
#17741
Half
13.11 mi12:40:211:48:178:165:40
8:18
#17739
25K
15.53 mi13:00:462:08:428:1720:25
8:25
#17507
30K
18.64 mi13:27:412:35:378:2126:55
8:40
#17130
20M
20.00 mi13:39:322:47:288:2211:51
8:43
#16974
21M
21.00 mi13:48:272:56:238:248:55
8:55
#16709
35K
21.75 mi13:54:453:02:418:246:18
8:25
#16618
23M
23.00 mi14:06:583:14:548:2812:13
9:45
#16846
24M
24.00 mi14:17:153:25:118:3310:17
10:17
#17215
40K
24.85 mi14:25:023:32:588:347:47
9:06
#17199
25.2M
25.20 mi14:28:273:36:238:353:25
9:54
#17193
Finish
26.22 mi14:37:013:44:578:358:34
8:24
#17126
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi184306595659517178(Top 60%)5834(Top 48%)5834(Top 107%)
10K6.21 mi3.10 mi18388+426551+446551+4418377(Top 65%)6527(Top 53%)6527(Top 119%)
15K9.32 mi3.11 mi17960+4286304+2476304+24717178(Top 60%)5834(Top 48%)5834(Top 107%)
20K12.43 mi3.11 mi17741+2196186+1186186+11817185(Top 61%)5880(Top 48%)5880(Top 108%)
Half13.11 mi0.68 mi17739+26188-26188-217990(Top 63%)6307(Top 52%)6307(Top 115%)
25K15.53 mi2.42 mi17507+2326063+1256063+12516715(Top 59%)5700(Top 47%)5700(Top 104%)
30K18.64 mi3.11 mi17130+3775891+1725891+17215806(Top 56%)5349(Top 44%)5349(Top 98%)
20M20.00 mi1.36 mi16974+1565825+665825+6615217(Top 54%)5167(Top 42%)5167(Top 94%)
21M21.00 mi1.00 mi16709+2655710+1155710+11513072(Top 46%)4172(Top 34%)4172(Top 76%)
35K21.75 mi0.75 mi16618+915673+375673+3715049(Top 53%)5266(Top 43%)5266(Top 96%)
23M23.00 mi1.25 mi16846-2285842-1695842-16919652(Top 69%)7862(Top 64%)7862(Top 144%)
24M24.00 mi1.00 mi17215-3696086-2446086-24422196(Top 78%)9229(Top 75%)9229(Top 169%)
40K24.85 mi0.85 mi17199+166102-166102-1616899(Top 59%)6530(Top 53%)6530(Top 119%)
25.2M25.20 mi0.35 mi17193+66109-76109-716634(Top 59%)6402(Top 52%)6402(Top 117%)
Finish26.22 mi1.02 mi17126+676086+236086+2315662(Top 55%)5844(Top 48%)5844(Top 107%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21stories
+97ft-345ft

Overall

17178

Females

5834

F18-39

5834

5K→10K

3.1 - 6.2 mi

Top 65%
×5stories
+79ft-138ft

Overall

18377

Females

6527

F18-39

6527

10K→15K

6.2 - 9.3 mi

Top 60%
×3stories
+67ft-78ft

Overall

17178

Females

5834

F18-39

5834

15K→20K

9.3 - 12.4 mi

Top 61%
×5stories
+106ft-86ft

Overall

17185

Females

5880

F18-39

5880

20K→Half

12.4 - 13.1 mi

Top 63%
×2stories
+19ft-37ft

Overall

17990

Females

6307

F18-39

6307

Half→25K

13.1 - 15.5 mi

Top 59%
×4stories
+66ft-88ft

Overall

16715

Females

5700

F18-39

5700

25K→30K

15.5 - 18.6 mi

Top 56%
×9stories
+181ft-148ft

Overall

15806

Females

5349

F18-39

5349

30K→20M

18.6 - 20.0 mi

Top 54%
×5stories
+64ft-50ft

Overall

15217

Females

5167

F18-39

5167

20M→21M

20.0 - 21.0 mi

Top 46%
×8stories
+106ft-24ft

Overall

13072

Females

4172

F18-39

4172

21M→35K

21.0 - 21.8 mi

Top 53%
×7stories
+17ft-86ft

Overall

15049

Females

5266

F18-39

5266

35K→23M

21.8 - 23.0 mi

Top 69%
×5stories
+23ft-63ft

Overall

19652

Females

7862

F18-39

7862

23M→24M

23.0 - 24.0 mi

Top 78%
×6stories
+12ft-82ft

Overall

22196

Females

9229

F18-39

9229

24M→40K

24.0 - 24.9 mi

Top 59%
×1story
+6ft-20ft

Overall

16899

Females

6530

F18-39

6530

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

16634

Females

6402

F18-39

6402

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2stories
+22ft-21ft

Overall

15662

Females

5844

F18-39

5844

Passing Analysis

Category:
Athletes Passed
2629
Passed By
1325
Net Change
+1304
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18430
5K → 10K271229+42#18430#18388
10K → 15K46335+428#18388#17960
15K → 20K30687+219#17960#17741
20K → Half3533+2#17741#17739
Half → 25K28048+232#17739#17507
25K → 30K42245+377#17507#17130
30K → 20M18125+156#17130#16974
20M → 21M2716+265#16974#16709
21M → 35K10918+91#16709#16618
35K → 23M57285-228#16618#16846
23M → 24M20389-369#16846#17215
24M → 40K7458+16#17215#17199
40K → 25.2M3832+6#17199#17193
25.2M → Finish10235+67#17193#17126
TOTALS26291325+1304
📊

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