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BOSTON MARATHON 2025

Lindsay Sarsfield

Bib: 15876•F

NH

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 40%
Masters (Masters Women)
#0 / 6759
Top 26%
Division (F40-44)
#0 / 1718
Top 49%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:36
Rank: #15891
Start → 5K
24:36 | 7:55/mi
10K· 6.21 mi
48:39
Rank: #15052 (+839)
5K → 10K
24:03 | 7:44/mi
15K· 9.32 mi
1:12:59
Rank: #14901 (+151)
10K → 15K
24:20 | 7:50/mi
20K· 12.43 mi
1:38:03
Rank: #15007 (-106)
15K → 20K
25:04 | 8:04/mi
Half· 13.11 mi
1:43:42
Rank: #15190 (-183)
20K → Half
5:39 | 8:17/mi
25K· 15.53 mi
2:04:14
Rank: #15521 (-331)
Half → 25K
20:32 | 8:28/mi
30K· 18.64 mi
2:31:33
Rank: #15750 (-229)
25K → 30K
27:19 | 8:48/mi
20M
2:43:26
Rank: #15641 (+109)
30K → 20M
11:53 | 8:45/mi
21M
2:52:34
Rank: #15517 (+124)
20M → 21M
9:08 | 9:08/mi
35K· 21.75 mi
2:58:51
Rank: #15491 (+26)
21M → 35K
6:17 | 8:24/mi
23M
3:09:44
Rank: #15377 (+114)
35K → 23M
10:53 | 8:42/mi
24M
3:18:09
Rank: #15297 (+80)
23M → 24M
8:25 | 8:25/mi
40K· 24.85 mi
3:25:25
Rank: #15202 (+95)
24M → 40K
7:16 | 8:30/mi
25.2M
3:28:32
Rank: #15136 (+66)
40K → 25.2M
3:07 | 9:02/mi
Finish· 26.22 mi
3:36:42
Rank: #15021 (+115)
25.2M → Finish
8:10 | 8:01/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:42
Pace7:55 /mi
2nd Half
Distance13.11 mi
Time1:53:00
Pace8:37 /mi
📊Positive Split: 9.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:5024:367:5524:36
7:55
-
10K
6.21 mi11:20:5348:397:5024:03
7:44
-0:11
15K
9.32 mi11:45:131:12:597:5024:20
7:50
+0:06
20K
12.43 mi12:10:171:38:037:5325:04
8:04
+0:14
Half
13.11 mi12:15:561:43:427:555:39
8:17
+0:13
25K
15.53 mi12:36:282:04:148:0020:32
8:28
+0:11
30K
18.64 mi13:03:472:31:338:0827:19
8:48
+0:20
20M
20.00 mi13:15:402:43:268:1011:53
8:45
-0:03
21M
21.00 mi13:24:482:52:348:139:08
9:08
+0:23
35K
21.75 mi13:31:052:58:518:136:17
8:24
-0:44
23M
23.00 mi13:41:583:09:448:1510:53
8:42
+0:18
24M
24.00 mi13:50:233:18:098:158:25
8:25
-0:17
40K
24.85 mi13:57:393:25:258:167:16
8:30
+0:05
25.2M
25.20 mi14:00:463:28:328:173:07
9:02
+0:32
Finish
26.22 mi14:08:563:36:428:168:10
8:01
-1:01

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

7:44 /mi

Average Pace

8:16 /mi

Slowest Pace

9:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:34:22

71% of race

Time at Steady Pace

53:12

25% of race

Time at Slower Pace

9:08

4% of race

Average Pace: 8:16 /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 mi10:56:5024:367:5524:36
7:55
#15891
10K
6.21 mi11:20:5348:397:5024:03
7:44
#15052
15K
9.32 mi11:45:131:12:597:5024:20
7:50
#14901
20K
12.43 mi12:10:171:38:037:5325:04
8:04
#15007
Half
13.11 mi12:15:561:43:427:555:39
8:17
#15190
25K
15.53 mi12:36:282:04:148:0020:32
8:28
#15521
30K
18.64 mi13:03:472:31:338:0827:19
8:48
#15750
20M
20.00 mi13:15:402:43:268:1011:53
8:45
#15641
21M
21.00 mi13:24:482:52:348:139:08
9:08
#15517
35K
21.75 mi13:31:052:58:518:136:17
8:24
#15491
23M
23.00 mi13:41:583:09:448:1510:53
8:42
#15377
24M
24.00 mi13:50:233:18:098:158:25
8:25
#15297
40K
24.85 mi13:57:393:25:258:167:16
8:30
#15202
25.2M
25.20 mi14:00:463:28:328:173:07
9:02
#15136
Finish
26.22 mi14:08:563:36:428:168:10
8:01
#15021
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi158915075507514668(Top 52%)4399(Top 36%)4399(Top 256%)
10K6.21 mi3.10 mi15052+8394578+4974578+49714273(Top 50%)4119(Top 34%)4119(Top 240%)
15K9.32 mi3.11 mi14901+1514496+824496+8214668(Top 52%)4399(Top 36%)4399(Top 256%)
20K12.43 mi3.11 mi15007-1064591-954591-9515417(Top 54%)4869(Top 40%)4869(Top 283%)
Half13.11 mi0.68 mi15190-1834694-1034694-10317825(Top 63%)6204(Top 51%)6204(Top 361%)
25K15.53 mi2.42 mi15521-3314900-2064900-20616985(Top 60%)5841(Top 48%)5841(Top 340%)
30K18.64 mi3.11 mi15750-2295084-1845084-18416558(Top 58%)5774(Top 47%)5774(Top 336%)
20M20.00 mi1.36 mi15641+1095061+235061+2315355(Top 54%)5234(Top 43%)5234(Top 305%)
21M21.00 mi1.00 mi15517+1245023+385023+3814291(Top 50%)4784(Top 39%)4784(Top 278%)
35K21.75 mi0.75 mi15491+265023502314875(Top 52%)5164(Top 42%)5164(Top 301%)
23M23.00 mi1.25 mi15377+1145000+235000+2314523(Top 51%)5081(Top 42%)5081(Top 296%)
24M24.00 mi1.00 mi15297+804978+224978+2214017(Top 49%)4836(Top 40%)4836(Top 281%)
40K24.85 mi0.85 mi15202+954960+184960+1813457(Top 47%)4684(Top 38%)4684(Top 273%)
25.2M25.20 mi0.35 mi15136+664930+304930+3012100(Top 43%)4041(Top 33%)4041(Top 235%)
Finish26.22 mi1.02 mi15021+1154885+454885+4513005(Top 46%)4441(Top 36%)4441(Top 258%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21stories
+97ft-345ft

Overall

14668

Females

4399

F40-44

4399

5K→10K

3.1 - 6.2 mi

Top 50%
×5stories
+79ft-138ft

Overall

14273

Females

4119

F40-44

4119

10K→15K

6.2 - 9.3 mi

Top 52%
×3stories
+67ft-78ft

Overall

14668

Females

4399

F40-44

4399

15K→20K

9.3 - 12.4 mi

Top 54%
×5stories
+106ft-86ft

Overall

15417

Females

4869

F40-44

4869

20K→Half

12.4 - 13.1 mi

Top 63%
×2stories
+19ft-37ft

Overall

17825

Females

6204

F40-44

6204

Half→25K

13.1 - 15.5 mi

Top 60%
×4stories
+66ft-88ft

Overall

16985

Females

5841

F40-44

5841

25K→30K

15.5 - 18.6 mi

Top 58%
×9stories
+181ft-148ft

Overall

16558

Females

5774

F40-44

5774

30K→20M

18.6 - 20.0 mi

Top 54%
×5stories
+64ft-50ft

Overall

15355

Females

5234

F40-44

5234

20M→21M

20.0 - 21.0 mi

Top 50%
×8stories
+106ft-24ft

Overall

14291

Females

4784

F40-44

4784

21M→35K

21.0 - 21.8 mi

Top 52%
×7stories
+17ft-86ft

Overall

14875

Females

5164

F40-44

5164

35K→23M

21.8 - 23.0 mi

Top 51%
×5stories
+23ft-63ft

Overall

14523

Females

5081

F40-44

5081

23M→24M

23.0 - 24.0 mi

Top 49%
×6stories
+12ft-82ft

Overall

14017

Females

4836

F40-44

4836

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

13457

Females

4684

F40-44

4684

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

12100

Females

4041

F40-44

4041

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2stories
+22ft-21ft

Overall

13005

Females

4441

F40-44

4441

Passing Analysis

Category:
Athletes Passed
2652
Passed By
1782
Net Change
+870
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15891
5K → 10K90869+839#15891#15052
10K → 15K279128+151#15052#14901
15K → 20K180286-106#14901#15007
20K → Half12195-183#15007#15190
Half → 25K84415-331#15190#15521
25K → 30K164393-229#15521#15750
30K → 20M17566+109#15750#15641
20M → 21M17450+124#15641#15517
21M → 35K6741+26#15517#15491
35K → 23M16753+114#15491#15377
23M → 24M11131+80#15377#15297
24M → 40K11621+95#15297#15202
40K → 25.2M759+66#15202#15136
25.2M → Finish14025+115#15136#15021
TOTALS26521782+870
📊

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