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BOSTON MARATHON 2025

Sarah Tierney

Bib: 19073•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 37%
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
23:41
Rank: #13330
Start → 5K
23:41 | 7:37/mi
10K· 6.21 mi
46:56
Rank: #12615 (+715)
5K → 10K
23:15 | 7:29/mi
15K· 9.32 mi
1:10:06
Rank: #12179 (+436)
10K → 15K
23:10 | 7:27/mi
20K· 12.43 mi
1:33:56
Rank: #12156 (+23)
15K → 20K
23:50 | 7:40/mi
Half· 13.11 mi
1:39:17
Rank: #12285 (-129)
20K → Half
5:21 | 7:50/mi
25K· 15.53 mi
1:59:01
Rank: #12698 (-413)
Half → 25K
19:44 | 8:08/mi
30K· 18.64 mi
2:25:57
Rank: #13336 (-638)
25K → 30K
26:56 | 8:40/mi
20M
2:38:12
Rank: #13608 (-272)
30K → 20M
12:15 | 9:01/mi
21M
2:47:51
Rank: #13806 (-198)
20M → 21M
9:39 | 9:39/mi
35K· 21.75 mi
2:54:09
Rank: #13829 (-23)
21M → 35K
6:18 | 8:25/mi
23M
3:05:22
Rank: #14004 (-175)
35K → 23M
11:13 | 8:58/mi
24M
3:14:20
Rank: #14188 (-184)
23M → 24M
8:58 | 8:58/mi
40K· 24.85 mi
3:22:07
Rank: #14272 (-84)
24M → 40K
7:47 | 9:06/mi
25.2M
3:25:31
Rank: #14297 (-25)
40K → 25.2M
3:24 | 9:52/mi
Finish· 26.22 mi
3:34:28
Rank: #14409 (-112)
25.2M → Finish
8:57 | 8:47/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:17
Pace7:34 /mi
2nd Half
Distance13.11 mi
Time1:55:11
Pace8:47 /mi
📊Positive Split: 16.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:2323:417:3723:41
7:37
-
10K
6.21 mi11:37:3846:567:3323:15
7:29
-0:08
15K
9.32 mi12:00:481:10:067:3123:10
7:27
-0:02
20K
12.43 mi12:24:381:33:567:3423:50
7:40
+0:13
Half
13.11 mi12:29:591:39:177:345:21
7:50
+0:10
25K
15.53 mi12:49:431:59:017:4019:44
8:08
+0:18
30K
18.64 mi13:16:392:25:577:5026:56
8:40
+0:32
20M
20.00 mi13:28:542:38:127:5512:15
9:01
+0:21
21M
21.00 mi13:38:332:47:518:009:39
9:39
+0:38
35K
21.75 mi13:44:512:54:098:006:18
8:25
-1:14
23M
23.00 mi13:56:043:05:228:0411:13
8:58
+0:33
24M
24.00 mi14:05:023:14:208:068:58
8:58
0:00
40K
24.85 mi14:12:493:22:078:087:47
9:06
+0:08
25.2M
25.20 mi14:16:133:25:318:093:24
9:52
+0:46
Finish
26.22 mi14:25:103:34:288:118:57
8:47
-1:05

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

7:27 /mi

Average Pace

8:11 /mi

Slowest Pace

9:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:59:01

55% of race

Time at Steady Pace

1:14:37

35% of race

Time at Slower Pace

20:50

10% of race

Average Pace: 8:11 /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 mi11:14:2323:417:3723:41
7:37
#13330
10K
6.21 mi11:37:3846:567:3323:15
7:29
#12615
15K
9.32 mi12:00:481:10:067:3123:10
7:27
#12179
20K
12.43 mi12:24:381:33:567:3423:50
7:40
#12156
Half
13.11 mi12:29:591:39:177:345:21
7:50
#12285
25K
15.53 mi12:49:431:59:017:4019:44
8:08
#12698
30K
18.64 mi13:16:392:25:577:5026:56
8:40
#13336
20M
20.00 mi13:28:542:38:127:5512:15
9:01
#13608
21M
21.00 mi13:38:332:47:518:009:39
9:39
#13806
35K
21.75 mi13:44:512:54:098:006:18
8:25
#13829
23M
23.00 mi13:56:043:05:228:0411:13
8:58
#14004
24M
24.00 mi14:05:023:14:208:068:58
8:58
#14188
40K
24.85 mi14:12:493:22:078:087:47
9:06
#14272
25.2M
25.20 mi14:16:133:25:318:093:24
9:52
#14297
Finish
26.22 mi14:25:103:34:288:118:57
8:47
#14409
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi133303508350811407(Top 40%)2590(Top 21%)2590(Top 47%)
10K6.21 mi3.10 mi12615+7153136+3723136+37211982(Top 42%)2814(Top 23%)2814(Top 51%)
15K9.32 mi3.11 mi12179+4362937+1992937+19911407(Top 40%)2590(Top 21%)2590(Top 47%)
20K12.43 mi3.11 mi12156+232956-192956-1912172(Top 43%)3096(Top 25%)3096(Top 57%)
Half13.11 mi0.68 mi12285-1293031-753031-7514672(Top 52%)4439(Top 36%)4439(Top 81%)
25K15.53 mi2.42 mi12698-4133303-2723303-27214910(Top 52%)4698(Top 38%)4698(Top 86%)
30K18.64 mi3.11 mi13336-6383736-4333736-43315821(Top 56%)5351(Top 44%)5351(Top 98%)
20M20.00 mi1.36 mi13608-2723913-1773913-17716864(Top 59%)6063(Top 50%)6063(Top 111%)
21M21.00 mi1.00 mi13806-1984063-1504063-15016784(Top 59%)6133(Top 50%)6133(Top 112%)
35K21.75 mi0.75 mi13829-234092-294092-2915005(Top 53%)5222(Top 43%)5222(Top 95%)
23M23.00 mi1.25 mi14004-1754224-1324224-13216039(Top 56%)5904(Top 48%)5904(Top 108%)
24M24.00 mi1.00 mi14188-1844360-1364360-13617200(Top 61%)6589(Top 54%)6589(Top 120%)
40K24.85 mi0.85 mi14272-844427-674427-6716887(Top 59%)6518(Top 53%)6518(Top 119%)
25.2M25.20 mi0.35 mi14297-254448-214448-2116400(Top 58%)6261(Top 51%)6261(Top 114%)
Finish26.22 mi1.02 mi14409-1124544-964544-9617958(Top 63%)7052(Top 58%)7052(Top 129%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21stories
+97ft-345ft

Overall

11407

Females

2590

F18-39

2590

5K→10K

3.1 - 6.2 mi

Top 42%
×5stories
+79ft-138ft

Overall

11982

Females

2814

F18-39

2814

10K→15K

6.2 - 9.3 mi

Top 40%
×3stories
+67ft-78ft

Overall

11407

Females

2590

F18-39

2590

15K→20K

9.3 - 12.4 mi

Top 43%
×5stories
+106ft-86ft

Overall

12172

Females

3096

F18-39

3096

20K→Half

12.4 - 13.1 mi

Top 52%
×2stories
+19ft-37ft

Overall

14672

Females

4439

F18-39

4439

Half→25K

13.1 - 15.5 mi

Top 52%
×4stories
+66ft-88ft

Overall

14910

Females

4698

F18-39

4698

25K→30K

15.5 - 18.6 mi

Top 56%
×9stories
+181ft-148ft

Overall

15821

Females

5351

F18-39

5351

30K→20M

18.6 - 20.0 mi

Top 59%
×5stories
+64ft-50ft

Overall

16864

Females

6063

F18-39

6063

20M→21M

20.0 - 21.0 mi

Top 59%
×8stories
+106ft-24ft

Overall

16784

Females

6133

F18-39

6133

21M→35K

21.0 - 21.8 mi

Top 53%
×7stories
+17ft-86ft

Overall

15005

Females

5222

F18-39

5222

35K→23M

21.8 - 23.0 mi

Top 56%
×5stories
+23ft-63ft

Overall

16039

Females

5904

F18-39

5904

23M→24M

23.0 - 24.0 mi

Top 61%
×6stories
+12ft-82ft

Overall

17200

Females

6589

F18-39

6589

24M→40K

24.0 - 24.9 mi

Top 59%
×1story
+6ft-20ft

Overall

16887

Females

6518

F18-39

6518

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1story
+13ft-16ft

Overall

16400

Females

6261

F18-39

6261

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2stories
+22ft-21ft

Overall

17958

Females

7052

F18-39

7052

Passing Analysis

Category:
Athletes Passed
2026
Passed By
3105
Net Change
-1079
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13330
5K → 10K78671+715#13330#12615
10K → 15K48246+436#12615#12179
15K → 20K199176+23#12179#12156
20K → Half3132-129#12156#12285
Half → 25K72485-413#12285#12698
25K → 30K98736-638#12698#13336
30K → 20M64336-272#13336#13608
20M → 21M51249-198#13608#13806
21M → 35K4871-23#13806#13829
35K → 23M71246-175#13829#14004
23M → 24M41225-184#14004#14188
24M → 40K49133-84#14188#14272
40K → 25.2M2550-25#14272#14297
25.2M → Finish37149-112#14297#14409
TOTALS20263105-1079
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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