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BOSTON MARATHON 2025

Justine Perkins

Bib: 18916•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 44%
Gender (Female)
#0 / 12228
Top 29%
Masters (Masters Women)
#0 / 6759
Top 14%
Division (F50-54)
#0 / 1303
Top 8%
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
7:46/mi
24:08
↑ 97↓ 3451.5%
10K· 6.21 mi
7:41/mi
48:01
↑ 79↓ 1380.4%
15K· 9.32 mi
7:44/mi
1:12:02
↑ 67↓ 78
20K· 12.43 mi
7:50/mi
1:36:23
↑ 106↓ 860.1%
Half· 13.11 mi
7:42/mi
1:41:38
↑ 19↓ 370.5%
25K· 15.53 mi
7:55/mi
2:00:49
↑ 66↓ 880.2%
30K· 18.64 mi
8:13/mi
2:26:20
↑ 181↓ 1480.2%
20M
8:13/mi
2:37:30
↑ 64↓ 500.2%
21M
8:45/mi
2:46:15
↑ 106↓ 241.6%
35K· 21.75 mi
7:56/mi
2:52:11
↑ 17↓ 861.7%
23M
8:14/mi
3:02:29
↑ 23↓ 630.6%
24M
7:52/mi
3:10:21
↓ 821.3%
40K· 24.85 mi
7:57/mi
3:17:09
↓ 200.3%
25.2M
8:39/mi
3:20:08
↑ 13↓ 160.2%
Finish· 26.22 mi
7:33/mi
3:27:50
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:38
Pace7:45 /mi
2nd Half
Distance13.11 mi
Time1:46:12
Pace8:06 /mi
📊Positive Split: 4.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:3924:087:4624:08
7:46
-
10K
6.21 mi11:39:3248:017:4423:53
7:41
-0:05
15K
9.32 mi12:03:331:12:027:4424:01
7:44
+0:03
20K
12.43 mi12:27:541:36:237:4524:21
7:50
+0:06
Half
13.11 mi12:33:091:41:387:455:15
7:42
-0:08
25K
15.53 mi12:52:202:00:497:4719:11
7:55
+0:13
30K
18.64 mi13:17:512:26:207:5125:31
8:13
+0:18
20M
20.00 mi13:29:012:37:307:5211:10
8:13
0:00
21M
21.00 mi13:37:462:46:157:558:45
8:45
+0:32
35K
21.75 mi13:43:422:52:117:555:56
7:56
-0:49
23M
23.00 mi13:54:003:02:297:5610:18
8:14
+0:18
24M
24.00 mi14:01:523:10:217:567:52
7:52
-0:22
40K
24.85 mi14:08:403:17:097:566:48
7:57
+0:05
25.2M
25.20 mi14:11:393:20:087:572:59
8:39
+0:42
Finish
26.22 mi14:19:213:27:507:567:42
7:33
-1:06

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

7:33 /mi

Average Pace

7:56 /mi

Slowest Pace

8:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:16:06

94% of race

Time at Steady Pace

11:44

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:56 /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 mi11:15:3924:087:4624:08
7:46
#14524
10K
6.21 mi11:39:3248:017:4423:53
7:41
#14134
15K
9.32 mi12:03:331:12:027:4424:01
7:44
#14012
20K
12.43 mi12:27:541:36:237:4524:21
7:50
#13864
Half
13.11 mi12:33:091:41:387:455:15
7:42
#13825
25K
15.53 mi12:52:202:00:497:4719:11
7:55
#13693
30K
18.64 mi13:17:512:26:207:5125:31
8:13
#13477
20M
20.00 mi13:29:012:37:307:5211:10
8:13
#13339
21M
21.00 mi13:37:462:46:157:558:45
8:45
#13228
35K
21.75 mi13:43:422:52:117:555:56
7:56
#13153
23M
23.00 mi13:54:003:02:297:5610:18
8:14
#13032
24M
24.00 mi14:01:523:10:217:567:52
7:52
#12885
40K
24.85 mi14:08:403:17:097:566:48
7:57
#12753
25.2M
25.20 mi14:11:393:20:087:572:59
8:39
#12686
Finish
26.22 mi14:19:213:27:507:567:42
7:33
#12535
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi145244230423013791(Top 49%)3891(Top 32%)3891(Top 299%)
10K6.21 mi3.10 mi14134+3904016+2144016+21413782(Top 49%)3825(Top 31%)3825(Top 294%)
15K9.32 mi3.11 mi14012+1223974+423974+4213791(Top 49%)3891(Top 32%)3891(Top 299%)
20K12.43 mi3.11 mi13864+1483932+423932+4213576(Top 48%)3858(Top 32%)3858(Top 296%)
Half13.11 mi0.68 mi13825+393923+93923+913399(Top 47%)3710(Top 30%)3710(Top 285%)
25K15.53 mi2.42 mi13693+1323868+553868+5513201(Top 46%)3773(Top 31%)3773(Top 290%)
30K18.64 mi3.11 mi13477+2163802+663802+6612932(Top 46%)3791(Top 31%)3791(Top 291%)
20M20.00 mi1.36 mi13339+1383763+393763+3911934(Top 42%)3410(Top 28%)3410(Top 262%)
21M21.00 mi1.00 mi13228+1113736+273736+2712009(Top 42%)3602(Top 29%)3602(Top 276%)
35K21.75 mi0.75 mi13153+753710+263710+2611810(Top 42%)3549(Top 29%)3549(Top 272%)
23M23.00 mi1.25 mi13032+1213686+243686+2411553(Top 41%)3508(Top 29%)3508(Top 269%)
24M24.00 mi1.00 mi12885+1473638+483638+4810360(Top 36%)2982(Top 24%)2982(Top 229%)
40K24.85 mi0.85 mi12753+1323592+463592+469907(Top 35%)2887(Top 24%)2887(Top 222%)
25.2M25.20 mi0.35 mi12686+673567+253567+259810(Top 35%)2936(Top 24%)2936(Top 225%)
Finish26.22 mi1.02 mi12535+1513519+483519+489645(Top 34%)2839(Top 23%)2839(Top 218%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21story building
+97ft-345ft

Overall

13791

Females

3891

F50-54

3891

5K→10K

3.1 - 6.2 mi

Top 49%
×5story building
+79ft-138ft

Overall

13782

Females

3825

F50-54

3825

10K→15K

6.2 - 9.3 mi

Top 49%
×3story building
+67ft-78ft

Overall

13791

Females

3891

F50-54

3891

15K→20K

9.3 - 12.4 mi

Top 48%
×5story building
+106ft-86ft

Overall

13576

Females

3858

F50-54

3858

20K→Half

12.4 - 13.1 mi

Top 47%
×2story building
+19ft-37ft

Overall

13399

Females

3710

F50-54

3710

Half→25K

13.1 - 15.5 mi

Top 46%
×4story building
+66ft-88ft

Overall

13201

Females

3773

F50-54

3773

25K→30K

15.5 - 18.6 mi

Top 46%
×9story building
+181ft-148ft

Overall

12932

Females

3791

F50-54

3791

30K→20M

18.6 - 20.0 mi

Top 42%
×5story building
+64ft-50ft

Overall

11934

Females

3410

F50-54

3410

20M→21M

20.0 - 21.0 mi

Top 42%
×8story building
+106ft-24ft

Overall

12009

Females

3602

F50-54

3602

21M→35K

21.0 - 21.8 mi

Top 42%
×7story building
+17ft-86ft

Overall

11810

Females

3549

F50-54

3549

35K→23M

21.8 - 23.0 mi

Top 41%
×5story building
+23ft-63ft

Overall

11553

Females

3508

F50-54

3508

23M→24M

23.0 - 24.0 mi

Top 36%
×6story building
+12ft-82ft

Overall

10360

Females

2982

F50-54

2982

24M→40K

24.0 - 24.9 mi

Top 35%
×1story
+6ft-20ft

Overall

9907

Females

2887

F50-54

2887

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9810

Females

2936

F50-54

2936

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2story building
+22ft-21ft

Overall

9645

Females

2839

F50-54

2839

Passing Analysis

Category:
Athletes Passed
2835
Passed By
846
Net Change
+1989
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14524
5K → 10K510120+390#14524#14134
10K → 15K256134+122#14134#14012
15K → 20K282134+148#14012#13864
20K → Half5516+39#13864#13825
Half → 25K243111+132#13825#13693
25K → 30K333117+216#13693#13477
30K → 20M18749+138#13477#13339
20M → 21M16049+111#13339#13228
21M → 35K9419+75#13228#13153
35K → 23M16342+121#13153#13032
23M → 24M16619+147#13032#12885
24M → 40K15018+132#12885#12753
40K → 25.2M736+67#12753#12686
25.2M → Finish16312+151#12686#12535
TOTALS2835846+1989
📊

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