Boston Marathon logo
BOSTON MARATHON 2025

Sarah Mahar

Bib: 25751•F

MA

0:00
0:00
/ mi
Be the first to cheer!
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
25:25
Rank: #17994
Start → 5K
25:25 | 8:11/mi
10K· 6.21 mi
50:44
Rank: #17738 (+256)
5K → 10K
25:19 | 8:09/mi
15K· 9.32 mi
1:16:54
Rank: #18113 (-375)
10K → 15K
26:10 | 8:25/mi
20K· 12.43 mi
1:44:05
Rank: #18485 (-372)
15K → 20K
27:11 | 8:45/mi
Half· 13.11 mi
1:50:06
Rank: #18633 (-148)
20K → Half
6:01 | 8:49/mi
25K· 15.53 mi
2:12:12
Rank: #18962 (-329)
Half → 25K
22:06 | 9:07/mi
30K· 18.64 mi
2:41:32
Rank: #19143 (-181)
25K → 30K
29:20 | 9:26/mi
20M
2:54:27
Rank: #19138 (+5)
30K → 20M
12:55 | 9:30/mi
21M
3:04:24
Rank: #19078 (+60)
20M → 21M
9:57 | 9:57/mi
35K· 21.75 mi
3:11:11
Rank: #19057 (+21)
21M → 35K
6:47 | 9:04/mi
23M
3:23:28
Rank: #19134 (-77)
35K → 23M
12:17 | 9:49/mi
24M
3:32:51
Rank: #19134
23M → 24M
9:23 | 9:23/mi
40K· 24.85 mi
3:40:32
Rank: #19000 (+134)
24M → 40K
7:41 | 8:59/mi
25.2M
3:43:55
Rank: #18960 (+40)
40K → 25.2M
3:23 | 9:49/mi
Finish· 26.22 mi
3:52:53
Rank: #18927 (+33)
25.2M → Finish
8:58 | 8:48/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:06
Pace8:24 /mi
2nd Half
Distance13.11 mi
Time2:02:47
Pace9:22 /mi
📊Positive Split: 11.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:40:5725:258:1125:25
8:11
-
10K
6.21 mi12:06:1650:448:1025:19
8:09
-0:02
15K
9.32 mi12:32:261:16:548:1526:10
8:25
+0:16
20K
12.43 mi12:59:371:44:058:2327:11
8:45
+0:20
Half
13.11 mi13:05:381:50:068:246:01
8:49
+0:04
25K
15.53 mi13:27:442:12:128:3122:06
9:07
+0:18
30K
18.64 mi13:57:042:41:328:4029:20
9:26
+0:19
20M
20.00 mi14:09:592:54:278:4312:55
9:30
+0:04
21M
21.00 mi14:19:563:04:248:479:57
9:57
+0:27
35K
21.75 mi14:26:433:11:118:476:47
9:04
-0:53
23M
23.00 mi14:39:003:23:288:5112:17
9:49
+0:45
24M
24.00 mi14:48:233:32:518:529:23
9:23
-0:26
40K
24.85 mi14:56:043:40:328:527:41
8:59
-0:24
25.2M
25.20 mi14:59:273:43:558:533:23
9:49
+0:50
Finish
26.22 mi15:08:253:52:538:538:58
8:48
-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

8:09 /mi

Average Pace

8:53 /mi

Slowest Pace

9:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:05

45% of race

Time at Steady Pace

51:33

22% of race

Time at Slower Pace

1:17:15

33% of race

Average Pace: 8:53 /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 mi11:40:5725:258:1125:25
8:11
#17994
10K
6.21 mi12:06:1650:448:1025:19
8:09
#17738
15K
9.32 mi12:32:261:16:548:1526:10
8:25
#18113
20K
12.43 mi12:59:371:44:058:2327:11
8:45
#18485
Half
13.11 mi13:05:381:50:068:246:01
8:49
#18633
25K
15.53 mi13:27:442:12:128:3122:06
9:07
#18962
30K
18.64 mi13:57:042:41:328:4029:20
9:26
#19143
20M
20.00 mi14:09:592:54:278:4312:55
9:30
#19138
21M
21.00 mi14:19:563:04:248:479:57
9:57
#19078
35K
21.75 mi14:26:433:11:118:476:47
9:04
#19057
23M
23.00 mi14:39:003:23:288:5112:17
9:49
#19134
24M
24.00 mi14:48:233:32:518:529:23
9:23
#19134
40K
24.85 mi14:56:043:40:328:527:41
8:59
#19000
25.2M
25.20 mi14:59:273:43:558:533:23
9:49
#18960
Finish
26.22 mi15:08:253:52:538:538:58
8:48
#18927
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi179946342634218852(Top 66%)6812(Top 56%)6812(Top 125%)
10K6.21 mi3.10 mi17738+2566166+1766166+17617558(Top 62%)6039(Top 49%)6039(Top 110%)
15K9.32 mi3.11 mi18113-3756396-2306396-23018852(Top 66%)6812(Top 56%)6812(Top 125%)
20K12.43 mi3.11 mi18485-3726612-2166612-21619689(Top 69%)7309(Top 60%)7309(Top 134%)
Half13.11 mi0.68 mi18633-1486699-876699-8721003(Top 74%)8036(Top 66%)8036(Top 147%)
25K15.53 mi2.42 mi18962-3296896-1976896-19720424(Top 72%)7767(Top 64%)7767(Top 142%)
30K18.64 mi3.11 mi19143-1817040-1447040-14419710(Top 69%)7504(Top 61%)7504(Top 137%)
20M20.00 mi1.36 mi19138+57058-187058-1819208(Top 68%)7373(Top 60%)7373(Top 135%)
21M21.00 mi1.00 mi19078+607046+127046+1218128(Top 64%)6865(Top 56%)6865(Top 126%)
35K21.75 mi0.75 mi19057+217053-77053-718591(Top 65%)7245(Top 59%)7245(Top 132%)
23M23.00 mi1.25 mi19134-777122-697122-6919834(Top 70%)7960(Top 65%)7960(Top 146%)
24M24.00 mi1.00 mi191347145-237145-2319175(Top 68%)7636(Top 62%)7636(Top 140%)
40K24.85 mi0.85 mi19000+1347100+457100+4516260(Top 57%)6192(Top 51%)6192(Top 113%)
25.2M25.20 mi0.35 mi18960+407088+127088+1216233(Top 57%)6218(Top 51%)6218(Top 114%)
Finish26.22 mi1.02 mi18927+337086+27086+218061(Top 64%)7118(Top 58%)7118(Top 130%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21stories
+97ft-345ft

Overall

18852

Females

6812

F18-39

6812

5K→10K

3.1 - 6.2 mi

Top 62%
×5stories
+79ft-138ft

Overall

17558

Females

6039

F18-39

6039

10K→15K

6.2 - 9.3 mi

Top 66%
×3stories
+67ft-78ft

Overall

18852

Females

6812

F18-39

6812

15K→20K

9.3 - 12.4 mi

Top 69%
×5stories
+106ft-86ft

Overall

19689

Females

7309

F18-39

7309

20K→Half

12.4 - 13.1 mi

Top 74%
×2stories
+19ft-37ft

Overall

21003

Females

8036

F18-39

8036

Half→25K

13.1 - 15.5 mi

Top 72%
×4stories
+66ft-88ft

Overall

20424

Females

7767

F18-39

7767

25K→30K

15.5 - 18.6 mi

Top 69%
×9stories
+181ft-148ft

Overall

19710

Females

7504

F18-39

7504

30K→20M

18.6 - 20.0 mi

Top 68%
×5stories
+64ft-50ft

Overall

19208

Females

7373

F18-39

7373

20M→21M

20.0 - 21.0 mi

Top 64%
×8stories
+106ft-24ft

Overall

18128

Females

6865

F18-39

6865

21M→35K

21.0 - 21.8 mi

Top 65%
×7stories
+17ft-86ft

Overall

18591

Females

7245

F18-39

7245

35K→23M

21.8 - 23.0 mi

Top 70%
×5stories
+23ft-63ft

Overall

19834

Females

7960

F18-39

7960

23M→24M

23.0 - 24.0 mi

Top 68%
×6stories
+12ft-82ft

Overall

19175

Females

7636

F18-39

7636

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

16260

Females

6192

F18-39

6192

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

16233

Females

6218

F18-39

6218

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2stories
+22ft-21ft

Overall

18061

Females

7118

F18-39

7118

Passing Analysis

Category:
Athletes Passed
1583
Passed By
2516
Net Change
-933
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17994
5K → 10K420164+256#17994#17738
10K → 15K87462-375#17738#18113
15K → 20K104476-372#18113#18485
20K → Half8156-148#18485#18633
Half → 25K91420-329#18633#18962
25K → 30K173354-181#18962#19143
30K → 20M10499+5#19143#19138
20M → 21M11959+60#19138#19078
21M → 35K7049+21#19078#19057
35K → 23M66143-77#19057#19134
23M → 24M68680#19134#19134
24M → 40K14915+134#19134#19000
40K → 25.2M477+40#19000#18960
25.2M → Finish7744+33#18960#18927
TOTALS15832516-933
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing