Boston Marathon logo
BOSTON MARATHON 2025

Sarah Parker

Bib: 15992•F

UT

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

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:53/mi
24:28
↑ 97↓ 3451.5%
10K· 6.21 mi
8:20/mi
50:22
↑ 79↓ 1380.4%
15K· 9.32 mi
8:33/mi
1:16:57
↑ 67↓ 78
20K· 12.43 mi
8:40/mi
1:43:52
↑ 106↓ 860.1%
Half· 13.11 mi
8:21/mi
1:49:34
↑ 19↓ 370.5%
25K· 15.53 mi
9:05/mi
2:11:36
↑ 66↓ 880.2%
30K· 18.64 mi
9:11/mi
2:40:07
↑ 181↓ 1480.2%
20M
9:09/mi
2:52:33
↑ 64↓ 500.2%
21M
9:57/mi
3:02:30
↑ 106↓ 241.6%
35K· 21.75 mi
9:35/mi
3:09:40
↑ 17↓ 861.7%
23M
9:32/mi
3:21:36
↑ 23↓ 630.6%
24M
9:43/mi
3:31:19
↓ 821.3%
40K· 24.85 mi
9:42/mi
3:39:37
↓ 200.3%
25.2M
9:31/mi
3:42:54
↑ 13↓ 160.2%
Finish· 26.22 mi
9:13/mi
3:52:18
↑ 22↓ 21

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
Time1:49:34
Pace8:21 /mi
2nd Half
Distance13.11 mi
Time2:02:44
Pace9:22 /mi
📊Positive Split: 12.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:1924:287:5324:28
7:53
-
10K
6.21 mi11:22:1350:228:0625:54
8:20
+0:27
15K
9.32 mi11:48:481:16:578:1526:35
8:33
+0:13
20K
12.43 mi12:15:431:43:528:2126:55
8:40
+0:07
Half
13.11 mi12:21:251:49:348:215:42
8:21
-0:19
25K
15.53 mi12:43:272:11:368:2822:02
9:05
+0:44
30K
18.64 mi13:11:582:40:078:3528:31
9:11
+0:06
20M
20.00 mi13:24:242:52:338:3812:26
9:09
-0:02
21M
21.00 mi13:34:213:02:308:419:57
9:57
+0:48
35K
21.75 mi13:41:313:09:408:437:10
9:35
-0:22
23M
23.00 mi13:53:273:21:368:4611:56
9:32
-0:03
24M
24.00 mi14:03:103:31:198:489:43
9:43
+0:11
40K
24.85 mi14:11:283:39:378:508:18
9:42
-0:01
25.2M
25.20 mi14:14:453:42:548:513:17
9:31
-0:11
Finish
26.22 mi14:24:093:52:188:529:24
9:13
-0:18

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

7:53 /mi

Average Pace

8:52 /mi

Slowest Pace

9:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:49:34

47% of race

Time at Steady Pace

1:12:23

31% of race

Time at Slower Pace

50:21

22% of race

Average Pace: 8:52 /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 mi10:56:1924:287:5324:28
7:53
#15491
10K
6.21 mi11:22:1350:228:0625:54
8:20
#17307
15K
9.32 mi11:48:481:16:578:1526:35
8:33
#18140
20K
12.43 mi12:15:431:43:528:2126:55
8:40
#18376
Half
13.11 mi12:21:251:49:348:215:42
8:21
#18355
25K
15.53 mi12:43:272:11:368:2822:02
9:05
#18745
30K
18.64 mi13:11:582:40:078:3528:31
9:11
#18694
20M
20.00 mi13:24:242:52:338:3812:26
9:09
#18584
21M
21.00 mi13:34:213:02:308:419:57
9:57
#18564
35K
21.75 mi13:41:313:09:408:437:10
9:35
#18668
23M
23.00 mi13:53:273:21:368:4611:56
9:32
#18674
24M
24.00 mi14:03:103:31:198:489:43
9:43
#18800
40K
24.85 mi14:11:283:39:378:508:18
9:42
#18819
25.2M
25.20 mi14:14:453:42:548:513:17
9:31
#18757
Finish
26.22 mi14:24:093:52:188:529:24
9:13
#18805
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi154914832483219680(Top 69%)7262(Top 59%)7262(Top 133%)
10K6.21 mi3.10 mi17307-18165913-10815913-108118800(Top 66%)6764(Top 55%)6764(Top 124%)
15K9.32 mi3.11 mi18140-8336414-5016414-50119680(Top 69%)7262(Top 59%)7262(Top 133%)
20K12.43 mi3.11 mi18376-2366555-1416555-14119227(Top 68%)7038(Top 58%)7038(Top 129%)
Half13.11 mi0.68 mi18355+216547+86547+818386(Top 65%)6563(Top 54%)6563(Top 120%)
25K15.53 mi2.42 mi18745-3906770-2236770-22320304(Top 71%)7699(Top 63%)7699(Top 141%)
30K18.64 mi3.11 mi18694+516767+36767+318554(Top 65%)6861(Top 56%)6861(Top 125%)
20M20.00 mi1.36 mi18584+1106731+366731+3617556(Top 62%)6453(Top 53%)6453(Top 118%)
21M21.00 mi1.00 mi18564+206759-286759-2818127(Top 64%)6864(Top 56%)6864(Top 126%)
35K21.75 mi0.75 mi18668-1046833-746833-7420617(Top 73%)8299(Top 68%)8299(Top 152%)
23M23.00 mi1.25 mi18674-66872-396872-3918851(Top 66%)7430(Top 61%)7430(Top 136%)
24M24.00 mi1.00 mi18800-1266958-866958-8620446(Top 72%)8320(Top 68%)8320(Top 152%)
40K24.85 mi0.85 mi18819-196997-396997-3919512(Top 69%)7895(Top 65%)7895(Top 144%)
25.2M25.20 mi0.35 mi18757+626975+226975+2214798(Top 52%)5468(Top 45%)5468(Top 100%)
Finish26.22 mi1.02 mi18805-487019-447019-4420069(Top 71%)8184(Top 67%)8184(Top 150%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21story building
+97ft-345ft

Overall

19680

Females

7262

F18-39

7262

5K→10K

3.1 - 6.2 mi

Top 66%
×5story building
+79ft-138ft

Overall

18800

Females

6764

F18-39

6764

10K→15K

6.2 - 9.3 mi

Top 69%
×3story building
+67ft-78ft

Overall

19680

Females

7262

F18-39

7262

15K→20K

9.3 - 12.4 mi

Top 68%
×5story building
+106ft-86ft

Overall

19227

Females

7038

F18-39

7038

20K→Half

12.4 - 13.1 mi

Top 65%
×2story building
+19ft-37ft

Overall

18386

Females

6563

F18-39

6563

Half→25K

13.1 - 15.5 mi

Top 71%
×4story building
+66ft-88ft

Overall

20304

Females

7699

F18-39

7699

25K→30K

15.5 - 18.6 mi

Top 65%
×9story building
+181ft-148ft

Overall

18554

Females

6861

F18-39

6861

30K→20M

18.6 - 20.0 mi

Top 62%
×5story building
+64ft-50ft

Overall

17556

Females

6453

F18-39

6453

20M→21M

20.0 - 21.0 mi

Top 64%
×8story building
+106ft-24ft

Overall

18127

Females

6864

F18-39

6864

21M→35K

21.0 - 21.8 mi

Top 73%
×7story building
+17ft-86ft

Overall

20617

Females

8299

F18-39

8299

35K→23M

21.8 - 23.0 mi

Top 66%
×5story building
+23ft-63ft

Overall

18851

Females

7430

F18-39

7430

23M→24M

23.0 - 24.0 mi

Top 72%
×6story building
+12ft-82ft

Overall

20446

Females

8320

F18-39

8320

24M→40K

24.0 - 24.9 mi

Top 69%
×1story
+6ft-20ft

Overall

19512

Females

7895

F18-39

7895

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1story
+13ft-16ft

Overall

14798

Females

5468

F18-39

5468

25.2M→Finish

25.2 - 26.2 mi

Top 71%
×2story building
+22ft-21ft

Overall

20069

Females

8184

F18-39

8184

Passing Analysis

Category:
Athletes Passed
1206
Passed By
4520
Net Change
-3314
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15491
5K → 10K251841-1816#15491#17307
10K → 15K42875-833#17307#18140
15K → 20K125361-236#18140#18376
20K → Half5029+21#18376#18355
Half → 25K76466-390#18355#18745
25K → 30K262211+51#18745#18694
30K → 20M16555+110#18694#18584
20M → 21M11292+20#18584#18564
21M → 35K31135-104#18564#18668
35K → 23M108114-6#18668#18674
23M → 24M33159-126#18674#18800
24M → 40K6483-19#18800#18819
40K → 25.2M664+62#18819#18757
25.2M → Finish4795-48#18757#18805
TOTALS12064520-3314
📊

Passing Visuals

Category:
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

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing