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BOSTON MARATHON 2025

Shelley Percival

Bib: 31544•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
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
8:54/mi
27:40
↑ 97↓ 3451.5%
10K· 6.21 mi
8:33/mi
54:15
↑ 79↓ 1380.4%
15K· 9.32 mi
8:42/mi
1:21:17
↑ 67↓ 78
20K· 12.43 mi
9:14/mi
1:49:59
↑ 106↓ 860.1%
Half· 13.11 mi
8:52/mi
1:56:02
↑ 19↓ 370.5%
25K· 15.53 mi
9:35/mi
2:19:16
↑ 66↓ 880.2%
30K· 18.64 mi
10:25/mi
2:51:39
↑ 181↓ 1480.2%
20M
10:35/mi
3:06:02
↑ 64↓ 500.2%
21M
11:36/mi
3:17:38
↑ 106↓ 241.6%
35K· 21.75 mi
10:16/mi
3:25:19
↑ 17↓ 861.7%
23M
10:17/mi
3:38:12
↑ 23↓ 630.6%
24M
10:36/mi
3:48:48
↓ 821.3%
40K· 24.85 mi
10:13/mi
3:57:32
↓ 200.3%
25.2M
10:41/mi
4:01:13
↑ 13↓ 160.2%
Finish· 26.22 mi
9:24/mi
4:10:48
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:02
Pace8:51 /mi
2nd Half
Distance13.11 mi
Time2:14:46
Pace10:17 /mi
📊Positive Split: 16.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:3727:408:5427:40
8:54
-
10K
6.21 mi12:15:1254:158:4426:35
8:33
-0:21
15K
9.32 mi12:42:141:21:178:4327:02
8:42
+0:09
20K
12.43 mi13:10:561:49:598:5128:42
9:14
+0:32
Half
13.11 mi13:16:591:56:028:516:03
8:52
-0:22
25K
15.53 mi13:40:132:19:168:5823:14
9:35
+0:43
30K
18.64 mi14:12:362:51:399:1232:23
10:25
+0:50
20M
20.00 mi14:26:593:06:029:1814:23
10:35
+0:10
21M
21.00 mi14:38:353:17:389:2511:36
11:36
+1:01
35K
21.75 mi14:46:163:25:199:267:41
10:16
-1:20
23M
23.00 mi14:59:093:38:129:2912:53
10:17
+0:01
24M
24.00 mi15:09:453:48:489:3210:36
10:36
+0:19
40K
24.85 mi15:18:293:57:329:338:44
10:13
-0:23
25.2M
25.20 mi15:22:104:01:139:343:41
10:41
+0:28
Finish
26.22 mi15:31:454:10:489:349:35
9:24
-1:17

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

8:33 /mi

Average Pace

9:34 /mi

Slowest Pace

11:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:28:51

59% of race

Time at Steady Pace

1:26:40

35% of race

Time at Slower Pace

15:17

6% of race

Average Pace: 9:34 /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 mi11:48:3727:408:5427:40
8:54
#22024
10K
6.21 mi12:15:1254:158:4426:35
8:33
#21065
15K
9.32 mi12:42:141:21:178:4327:02
8:42
#20855
20K
12.43 mi13:10:561:49:598:5128:42
9:14
#21183
Half
13.11 mi13:16:591:56:028:516:03
8:52
#21183
25K
15.53 mi13:40:132:19:168:5823:14
9:35
#21413
30K
18.64 mi14:12:362:51:399:1232:23
10:25
#21793
20M
20.00 mi14:26:593:06:029:1814:23
10:35
#21879
21M
21.00 mi14:38:353:17:389:2511:36
11:36
#21952
35K
21.75 mi14:46:163:25:199:267:41
10:16
#21969
23M
23.00 mi14:59:093:38:129:2912:53
10:17
#21913
24M
24.00 mi15:09:453:48:489:3210:36
10:36
#21968
40K
24.85 mi15:18:293:57:329:338:44
10:13
#21926
25.2M
25.20 mi15:22:104:01:139:343:41
10:41
#21886
Finish
26.22 mi15:31:454:10:489:349:35
9:24
#21830
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi220248639863920516(Top 72%)7726(Top 63%)7726(Top 593%)
10K6.21 mi3.10 mi21065+9598087+5528087+55220136(Top 71%)7539(Top 62%)7539(Top 579%)
15K9.32 mi3.11 mi20855+2107958+1297958+12920516(Top 72%)7726(Top 63%)7726(Top 593%)
20K12.43 mi3.11 mi21183-3288133-1758133-17522041(Top 78%)8607(Top 70%)8607(Top 661%)
Half13.11 mi0.68 mi211838130+38130+321291(Top 75%)8205(Top 67%)8205(Top 630%)
25K15.53 mi2.42 mi21413-2308278-1488278-14822132(Top 78%)8724(Top 71%)8724(Top 670%)
30K18.64 mi3.11 mi21793-3808507-2298507-22922757(Top 80%)9189(Top 75%)9189(Top 705%)
20M20.00 mi1.36 mi21879-868567-608567-6022660(Top 80%)9231(Top 75%)9231(Top 708%)
21M21.00 mi1.00 mi21952-738640-738640-7322825(Top 80%)9409(Top 77%)9409(Top 722%)
35K21.75 mi0.75 mi21969-178664-248664-2422619(Top 80%)9342(Top 76%)9342(Top 717%)
23M23.00 mi1.25 mi21913+568669-58669-521391(Top 75%)8744(Top 72%)8744(Top 671%)
24M24.00 mi1.00 mi21968-558720-518720-5123084(Top 81%)9677(Top 79%)9677(Top 743%)
40K24.85 mi0.85 mi21926+428716+48716+421134(Top 74%)8734(Top 71%)8734(Top 670%)
25.2M25.20 mi0.35 mi21886+408703+138703+1319717(Top 69%)8028(Top 66%)8028(Top 616%)
Finish26.22 mi1.02 mi21830+568690+138690+1320856(Top 73%)8591(Top 70%)8591(Top 659%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21story building
+97ft-345ft

Overall

20516

Females

7726

F50-54

7726

5K→10K

3.1 - 6.2 mi

Top 71%
×5story building
+79ft-138ft

Overall

20136

Females

7539

F50-54

7539

10K→15K

6.2 - 9.3 mi

Top 72%
×3story building
+67ft-78ft

Overall

20516

Females

7726

F50-54

7726

15K→20K

9.3 - 12.4 mi

Top 78%
×5story building
+106ft-86ft

Overall

22041

Females

8607

F50-54

8607

20K→Half

12.4 - 13.1 mi

Top 75%
×2story building
+19ft-37ft

Overall

21291

Females

8205

F50-54

8205

Half→25K

13.1 - 15.5 mi

Top 78%
×4story building
+66ft-88ft

Overall

22132

Females

8724

F50-54

8724

25K→30K

15.5 - 18.6 mi

Top 80%
×9story building
+181ft-148ft

Overall

22757

Females

9189

F50-54

9189

30K→20M

18.6 - 20.0 mi

Top 80%
×5story building
+64ft-50ft

Overall

22660

Females

9231

F50-54

9231

20M→21M

20.0 - 21.0 mi

Top 80%
×8story building
+106ft-24ft

Overall

22825

Females

9409

F50-54

9409

21M→35K

21.0 - 21.8 mi

Top 80%
×7story building
+17ft-86ft

Overall

22619

Females

9342

F50-54

9342

35K→23M

21.8 - 23.0 mi

Top 75%
×5story building
+23ft-63ft

Overall

21391

Females

8744

F50-54

8744

23M→24M

23.0 - 24.0 mi

Top 81%
×6story building
+12ft-82ft

Overall

23084

Females

9677

F50-54

9677

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

21134

Females

8734

F50-54

8734

40K→25.2M

24.9 - 25.2 mi

Top 69%
×1story
+13ft-16ft

Overall

19717

Females

8028

F50-54

8028

25.2M→Finish

25.2 - 26.2 mi

Top 73%
×2story building
+22ft-21ft

Overall

20856

Females

8591

F50-54

8591

Passing Analysis

Category:
Athletes Passed
2093
Passed By
1899
Net Change
+194
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22024
5K → 10K99031+959#22024#21065
10K → 15K30090+210#21065#20855
15K → 20K115443-328#20855#21183
20K → Half31310#21183#21183
Half → 25K84314-230#21183#21413
25K → 30K86466-380#21413#21793
30K → 20M66152-86#21793#21879
20M → 21M61134-73#21879#21952
21M → 35K3350-17#21952#21969
35K → 23M10246+56#21969#21913
23M → 24M3691-55#21913#21968
24M → 40K6422+42#21968#21926
40K → 25.2M455+40#21926#21886
25.2M → Finish8024+56#21886#21830
TOTALS20931899+194
📊

Passing Visuals

Category:
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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