Boston Marathon logo
BOSTON MARATHON 2025

Piper Gray

Bib: 15171•F

KY

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 37%
Gender (Female)
#0 / 12228
Top 21%
Division (F18-39)
#0 / 5469
Top 36%
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
7:41/mi
23:53
↑ 97↓ 3451.5%
10K· 6.21 mi
7:40/mi
47:42
↑ 79↓ 1380.4%
15K· 9.32 mi
7:38/mi
1:11:24
↑ 67↓ 78
20K· 12.43 mi
7:38/mi
1:35:08
↑ 106↓ 860.1%
Half· 13.11 mi
7:37/mi
1:40:20
↑ 19↓ 370.5%
25K· 15.53 mi
7:40/mi
1:58:56
↑ 66↓ 880.2%
30K· 18.64 mi
7:47/mi
2:23:06
↑ 181↓ 1480.2%
20M
7:50/mi
2:33:45
↑ 64↓ 500.2%
21M
8:06/mi
2:41:51
↑ 106↓ 241.6%
35K· 21.75 mi
7:33/mi
2:47:30
↑ 17↓ 861.7%
23M
7:45/mi
2:57:12
↑ 23↓ 630.6%
24M
7:30/mi
3:04:42
↓ 821.3%
40K· 24.85 mi
7:33/mi
3:11:09
↓ 200.3%
25.2M
8:22/mi
3:14:02
↑ 13↓ 160.2%
Finish· 26.22 mi
7:24/mi
3:21:34
↑ 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 Half⚖️ Balanced
Distance13.11 mi
Time1:40:20
Pace7:39 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:41:14
Pace7:43 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:1523:537:4123:53
7:41
-
10K
6.21 mi11:20:0447:427:4123:49
7:40
-0:01
15K
9.32 mi11:43:461:11:247:4023:42
7:38
-0:02
20K
12.43 mi12:07:301:35:087:3923:44
7:38
0:00
Half
13.11 mi12:12:421:40:207:395:12
7:37
-0:01
25K
15.53 mi12:31:181:58:567:3918:36
7:40
+0:03
30K
18.64 mi12:55:282:23:067:4124:10
7:47
+0:07
20M
20.00 mi13:06:072:33:457:4110:39
7:50
+0:03
21M
21.00 mi13:14:132:41:517:428:06
8:06
+0:16
35K
21.75 mi13:19:522:47:307:425:39
7:33
-0:33
23M
23.00 mi13:29:342:57:127:429:42
7:45
+0:12
24M
24.00 mi13:37:043:04:427:427:30
7:30
-0:15
40K
24.85 mi13:43:313:11:097:416:27
7:33
+0:03
25.2M
25.20 mi13:46:243:14:027:422:53
8:22
+0:49
Finish
26.22 mi13:53:563:21:347:427:32
7:24
-0:58

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

7:24 /mi

Average Pace

7:42 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:18:41

99% of race

Time at Steady Pace

2:53

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:41 /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 mi10:56:1523:537:4123:53
7:41
#13864
10K
6.21 mi11:20:0447:427:4123:49
7:40
#13726
15K
9.32 mi11:43:461:11:247:4023:42
7:38
#13407
20K
12.43 mi12:07:301:35:087:3923:44
7:38
#12966
Half
13.11 mi12:12:421:40:207:395:12
7:37
#12934
25K
15.53 mi12:31:181:58:567:3918:36
7:40
#12655
30K
18.64 mi12:55:282:23:067:4124:10
7:47
#12048
20M
20.00 mi13:06:072:33:457:4110:39
7:50
#11791
21M
21.00 mi13:14:132:41:517:428:06
8:06
#11539
35K
21.75 mi13:19:522:47:307:425:39
7:33
#11417
23M
23.00 mi13:29:342:57:127:429:42
7:45
#11173
24M
24.00 mi13:37:043:04:427:427:30
7:30
#10974
40K
24.85 mi13:43:313:11:097:416:27
7:33
#10799
25.2M
25.20 mi13:46:243:14:027:422:53
8:22
#10731
Finish
26.22 mi13:53:563:21:347:427:32
7:24
#10610
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi138643810381012865(Top 45%)3362(Top 27%)3362(Top 61%)
10K6.21 mi3.10 mi13726+1383778+323778+3213585(Top 48%)3707(Top 30%)3707(Top 68%)
15K9.32 mi3.11 mi13407+3193628+1503628+15012865(Top 45%)3362(Top 27%)3362(Top 61%)
20K12.43 mi3.11 mi12966+4413424+2043424+20411874(Top 42%)2931(Top 24%)2931(Top 54%)
Half13.11 mi0.68 mi12934+323411+133411+1312771(Top 45%)3350(Top 27%)3350(Top 61%)
25K15.53 mi2.42 mi12655+2793277+1343277+13411324(Top 40%)2752(Top 23%)2752(Top 50%)
30K18.64 mi3.11 mi12048+6073023+2543023+2549786(Top 34%)2188(Top 18%)2188(Top 40%)
20M20.00 mi1.36 mi11791+2572917+1062917+1069316(Top 33%)2134(Top 17%)2134(Top 39%)
21M21.00 mi1.00 mi11539+2522832+852832+858000(Top 28%)1739(Top 14%)1739(Top 32%)
35K21.75 mi0.75 mi11417+1222796+362796+369063(Top 32%)2157(Top 18%)2157(Top 39%)
23M23.00 mi1.25 mi11173+2442707+892707+898256(Top 29%)1937(Top 16%)1937(Top 35%)
24M24.00 mi1.00 mi10974+1992644+632644+637734(Top 27%)1767(Top 14%)1767(Top 32%)
40K24.85 mi0.85 mi10799+1752585+592585+597105(Top 25%)1607(Top 13%)1607(Top 29%)
25.2M25.20 mi0.35 mi10731+682553+322553+328044(Top 28%)2102(Top 17%)2102(Top 38%)
Finish26.22 mi1.02 mi10610+1212527+262527+268467(Top 30%)2278(Top 19%)2278(Top 42%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21story building
+97ft-345ft

Overall

12865

Females

3362

F18-39

3362

5K→10K

3.1 - 6.2 mi

Top 48%
×5story building
+79ft-138ft

Overall

13585

Females

3707

F18-39

3707

10K→15K

6.2 - 9.3 mi

Top 45%
×3story building
+67ft-78ft

Overall

12865

Females

3362

F18-39

3362

15K→20K

9.3 - 12.4 mi

Top 42%
×5story building
+106ft-86ft

Overall

11874

Females

2931

F18-39

2931

20K→Half

12.4 - 13.1 mi

Top 45%
×2story building
+19ft-37ft

Overall

12771

Females

3350

F18-39

3350

Half→25K

13.1 - 15.5 mi

Top 40%
×4story building
+66ft-88ft

Overall

11324

Females

2752

F18-39

2752

25K→30K

15.5 - 18.6 mi

Top 34%
×9story building
+181ft-148ft

Overall

9786

Females

2188

F18-39

2188

30K→20M

18.6 - 20.0 mi

Top 33%
×5story building
+64ft-50ft

Overall

9316

Females

2134

F18-39

2134

20M→21M

20.0 - 21.0 mi

Top 28%
×8story building
+106ft-24ft

Overall

8000

Females

1739

F18-39

1739

21M→35K

21.0 - 21.8 mi

Top 32%
×7story building
+17ft-86ft

Overall

9063

Females

2157

F18-39

2157

35K→23M

21.8 - 23.0 mi

Top 29%
×5story building
+23ft-63ft

Overall

8256

Females

1937

F18-39

1937

23M→24M

23.0 - 24.0 mi

Top 27%
×6story building
+12ft-82ft

Overall

7734

Females

1767

F18-39

1767

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

7105

Females

1607

F18-39

1607

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

8044

Females

2102

F18-39

2102

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2story building
+22ft-21ft

Overall

8467

Females

2278

F18-39

2278

Passing Analysis

Category:
Athletes Passed
3721
Passed By
467
Net Change
+3254
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13864
5K → 10K350212+138#13864#13726
10K → 15K38465+319#13726#13407
15K → 20K47231+441#13407#12966
20K → Half4614+32#12966#12934
Half → 25K30627+279#12934#12655
25K → 30K62316+607#12655#12048
30K → 20M27316+257#12048#11791
20M → 21M26311+252#11791#11539
21M → 35K13614+122#11539#11417
35K → 23M25713+244#11417#11173
23M → 24M2012+199#11173#10974
24M → 40K1849+175#10974#10799
40K → 25.2M757+68#10799#10731
25.2M → Finish15130+121#10731#10610
TOTALS3721467+3254
📊

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