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BOSTON MARATHON 2025

Sabrina Pennington

Bib: 15025•F

HI

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0:00
/ mi
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Overall
#0 / 28404
Top 48%
Gender (Female)
#0 / 12228
Top 33%
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
24:40
Rank: #16100
Start → 5K
7:56/mi
24:40 split
10K· 6.21 mi
49:02
Rank: #15601 (+499)
5K → 10K
7:51/mi
24:22 split
15K· 9.32 mi
1:13:09
Rank: #15061 (+540)
10K → 15K
7:46/mi
24:07 split
20K· 12.43 mi
1:37:26
Rank: #14592 (+469)
15K → 20K
7:49/mi
24:17 split
Half· 13.11 mi
1:42:40
Rank: #14490 (+102)
20K → Half
7:40/mi
5:14 split
25K· 15.53 mi
2:02:03
Rank: #14360 (+130)
Half → 25K
8:00/mi
19:23 split
30K· 18.64 mi
2:28:04
Rank: #14225 (+135)
25K → 30K
8:22/mi
26:01 split
20M
2:39:45
Rank: #14219 (+6)
30K → 20M
8:36/mi
11:41 split
21M
2:48:44
Rank: #14136 (+83)
20M → 21M
8:59/mi
8:59 split
35K· 21.75 mi
2:54:31
Rank: #13965 (+171)
21M → 35K
7:44/mi
5:47 split
23M
3:04:40
Rank: #13755 (+210)
35K → 23M
8:06/mi
10:09 split
24M
3:12:36
Rank: #13596 (+159)
23M → 24M
7:56/mi
7:56 split
40K· 24.85 mi
3:19:46
Rank: #13542 (+54)
24M → 40K
8:23/mi
7:10 split
25.2M
3:22:52
Rank: #13500 (+42)
40K → 25.2M
8:59/mi
3:06 split
Finish· 26.22 mi
3:31:02
Rank: #13491 (+9)
25.2M → Finish
8:01/mi
8:10 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:40
Pace7:50 /mi
2nd Half
Distance13.11 mi
Time1:48:22
Pace8:16 /mi
📊Positive Split: 5.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:5024:407:5624:40
7:56
-
10K
6.21 mi11:20:1249:027:5324:22
7:51
-0:05
15K
9.32 mi11:44:191:13:097:5124:07
7:46
-0:05
20K
12.43 mi12:08:361:37:267:5024:17
7:49
+0:03
Half
13.11 mi12:13:501:42:407:505:14
7:40
-0:09
25K
15.53 mi12:33:132:02:037:5119:23
8:00
+0:20
30K
18.64 mi12:59:142:28:047:5726:01
8:22
+0:22
20M
20.00 mi13:10:552:39:457:5911:41
8:36
+0:14
21M
21.00 mi13:19:542:48:448:028:59
8:59
+0:23
35K
21.75 mi13:25:412:54:318:015:47
7:44
-1:15
23M
23.00 mi13:35:503:04:408:0210:09
8:06
+0:22
24M
24.00 mi13:43:463:12:368:027:56
7:56
-0:10
40K
24.85 mi13:50:563:19:468:027:10
8:23
+0:27
25.2M
25.20 mi13:54:023:22:528:033:06
8:59
+0:36
Finish
26.22 mi14:02:123:31:028:038:10
8:01
-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

7:40 /mi

Average Pace

8:03 /mi

Slowest Pace

8:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:07:16

89% of race

Time at Steady Pace

23:46

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:03 /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 mi10:55:5024:407:5624:40
7:56
#16100
10K
6.21 mi11:20:1249:027:5324:22
7:51
#15601
15K
9.32 mi11:44:191:13:097:5124:07
7:46
#15061
20K
12.43 mi12:08:361:37:267:5024:17
7:49
#14592
Half
13.11 mi12:13:501:42:407:505:14
7:40
#14490
25K
15.53 mi12:33:132:02:037:5119:23
8:00
#14360
30K
18.64 mi12:59:142:28:047:5726:01
8:22
#14225
20M
20.00 mi13:10:552:39:457:5911:41
8:36
#14219
21M
21.00 mi13:19:542:48:448:028:59
8:59
#14136
35K
21.75 mi13:25:412:54:318:015:47
7:44
#13965
23M
23.00 mi13:35:503:04:408:0210:09
8:06
#13755
24M
24.00 mi13:43:463:12:368:027:56
7:56
#13596
40K
24.85 mi13:50:563:19:468:027:10
8:23
#13542
25.2M
25.20 mi13:54:023:22:528:033:06
8:59
#13500
Finish
26.22 mi14:02:123:31:028:038:10
8:01
#13491
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi161005202520214059(Top 49%)4051(Top 33%)4051(Top 74%)
10K6.21 mi3.10 mi15601+4994896+3064896+30615206(Top 54%)4664(Top 38%)4664(Top 85%)
15K9.32 mi3.11 mi15061+5404590+3064590+30614059(Top 49%)4051(Top 33%)4051(Top 74%)
20K12.43 mi3.11 mi14592+4694343+2474343+24713418(Top 47%)3770(Top 31%)3770(Top 69%)
Half13.11 mi0.68 mi14490+1024293+504293+5013234(Top 47%)3634(Top 30%)3634(Top 66%)
25K15.53 mi2.42 mi14360+1304250+434250+4313857(Top 49%)4137(Top 34%)4137(Top 76%)
30K18.64 mi3.11 mi14225+1354236+144236+1413985(Top 49%)4354(Top 36%)4354(Top 80%)
20M20.00 mi1.36 mi14219+64256-204256-2014422(Top 51%)4732(Top 39%)4732(Top 87%)
21M21.00 mi1.00 mi14136+834239+174239+1713410(Top 47%)4316(Top 35%)4316(Top 79%)
35K21.75 mi0.75 mi13965+1714169+704169+7010383(Top 37%)2808(Top 23%)2808(Top 51%)
23M23.00 mi1.25 mi13755+2104088+814088+8110823(Top 38%)3146(Top 26%)3146(Top 58%)
24M24.00 mi1.00 mi13596+1594032+564032+5610816(Top 38%)3215(Top 26%)3215(Top 59%)
40K24.85 mi0.85 mi13542+544023+94023+912709(Top 45%)4283(Top 35%)4283(Top 78%)
25.2M25.20 mi0.35 mi13500+424015+84015+811807(Top 42%)3883(Top 32%)3883(Top 71%)
Finish26.22 mi1.02 mi13491+94033-184033-1812995(Top 46%)4431(Top 36%)4431(Top 81%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21story building
+97ft-345ft

Overall

14059

Females

4051

F18-39

4051

5K→10K

3.1 - 6.2 mi

Top 54%
×5story building
+79ft-138ft

Overall

15206

Females

4664

F18-39

4664

10K→15K

6.2 - 9.3 mi

Top 49%
×3story building
+67ft-78ft

Overall

14059

Females

4051

F18-39

4051

15K→20K

9.3 - 12.4 mi

Top 47%
×5story building
+106ft-86ft

Overall

13418

Females

3770

F18-39

3770

20K→Half

12.4 - 13.1 mi

Top 47%
×2story building
+19ft-37ft

Overall

13234

Females

3634

F18-39

3634

Half→25K

13.1 - 15.5 mi

Top 49%
×4story building
+66ft-88ft

Overall

13857

Females

4137

F18-39

4137

25K→30K

15.5 - 18.6 mi

Top 49%
×9story building
+181ft-148ft

Overall

13985

Females

4354

F18-39

4354

30K→20M

18.6 - 20.0 mi

Top 51%
×5story building
+64ft-50ft

Overall

14422

Females

4732

F18-39

4732

20M→21M

20.0 - 21.0 mi

Top 47%
×8story building
+106ft-24ft

Overall

13410

Females

4316

F18-39

4316

21M→35K

21.0 - 21.8 mi

Top 37%
×7story building
+17ft-86ft

Overall

10383

Females

2808

F18-39

2808

35K→23M

21.8 - 23.0 mi

Top 38%
×5story building
+23ft-63ft

Overall

10823

Females

3146

F18-39

3146

23M→24M

23.0 - 24.0 mi

Top 38%
×6story building
+12ft-82ft

Overall

10816

Females

3215

F18-39

3215

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

12709

Females

4283

F18-39

4283

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11807

Females

3883

F18-39

3883

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2story building
+22ft-21ft

Overall

12995

Females

4431

F18-39

4431

Passing Analysis

Category:
Athletes Passed
3411
Passed By
802
Net Change
+2609
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16100
5K → 10K621122+499#16100#15601
10K → 15K56020+540#15601#15061
15K → 20K49425+469#15061#14592
20K → Half1075+102#14592#14490
Half → 25K230100+130#14490#14360
25K → 30K307172+135#14360#14225
30K → 20M113107+6#14225#14219
20M → 21M15774+83#14219#14136
21M → 35K1732+171#14136#13965
35K → 23M22717+210#13965#13755
23M → 24M17819+159#13755#13596
24M → 40K10450+54#13596#13542
40K → 25.2M6119+42#13542#13500
25.2M → Finish7970+9#13500#13491
TOTALS3411802+2609
📊

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