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BOSTON MARATHON 2025

Sierra Winters

Bib: 18176•F

NC

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 50%
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
23:26
Rank: #12636
Start → 5K
7:33/mi
23:26 split
10K· 6.21 mi
46:19
Rank: #11741 (+895)
5K → 10K
7:22/mi
22:53 split
15K· 9.32 mi
1:09:14
Rank: #11331 (+410)
10K → 15K
7:23/mi
22:55 split
20K· 12.43 mi
1:34:15
Rank: #12357 (-1026)
15K → 20K
8:03/mi
25:01 split
Half· 13.11 mi
1:39:31
Rank: #12428 (-71)
20K → Half
7:43/mi
5:16 split
25K· 15.53 mi
1:59:34
Rank: #13006 (-578)
Half → 25K
8:16/mi
20:03 split
30K· 18.64 mi
2:30:09
Rank: #15174 (-2168)
25K → 30K
9:51/mi
30:35 split
20M
2:43:35
Rank: #15696 (-522)
30K → 20M
9:53/mi
13:26 split
21M
2:53:54
Rank: #15955 (-259)
20M → 21M
10:19/mi
10:19 split
35K· 21.75 mi
3:01:11
Rank: #16178 (-223)
21M → 35K
9:44/mi
7:17 split
23M
3:13:41
Rank: #16471 (-293)
35K → 23M
9:59/mi
12:30 split
24M
3:23:20
Rank: #16710 (-239)
23M → 24M
9:39/mi
9:39 split
40K· 24.85 mi
3:31:44
Rank: #16870 (-160)
24M → 40K
9:49/mi
8:24 split
25.2M
3:35:24
Rank: #16936 (-66)
40K → 25.2M
10:38/mi
3:40 split
Finish· 26.22 mi
3:44:50
Rank: #17094 (-158)
25.2M → Finish
9:15/mi
9:26 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:31
Pace7:35 /mi
2nd Half
Distance13.11 mi
Time2:05:19
Pace9:34 /mi
📊Positive Split: 25.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:1323:267:3323:26
7:33
-
10K
6.21 mi11:37:0646:197:2722:53
7:22
-0:11
15K
9.32 mi12:00:011:09:147:2622:55
7:23
+0:01
20K
12.43 mi12:25:021:34:157:3525:01
8:03
+0:40
Half
13.11 mi12:30:181:39:317:355:16
7:43
-0:20
25K
15.53 mi12:50:211:59:347:4220:03
8:16
+0:33
30K
18.64 mi13:20:562:30:098:0330:35
9:51
+1:35
20M
20.00 mi13:34:222:43:358:1113:26
9:53
+0:02
21M
21.00 mi13:44:412:53:548:1710:19
10:19
+0:26
35K
21.75 mi13:51:583:01:118:207:17
9:44
-0:35
23M
23.00 mi14:04:283:13:418:2512:30
9:59
+0:15
24M
24.00 mi14:14:073:23:208:289:39
9:39
-0:20
40K
24.85 mi14:22:313:31:448:318:24
9:49
+0:10
25.2M
25.20 mi14:26:113:35:248:333:40
10:38
+0:49
Finish
26.22 mi14:35:373:44:508:359:26
9:15
-1:23

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

7:22 /mi

Average Pace

8:35 /mi

Slowest Pace

10:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:59:34

53% of race

Time at Steady Pace

1:31:17

41% of race

Time at Slower Pace

13:59

6% of race

Average Pace: 8:34 /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 mi11:14:1323:267:3323:26
7:33
#12636
10K
6.21 mi11:37:0646:197:2722:53
7:22
#11741
15K
9.32 mi12:00:011:09:147:2622:55
7:23
#11331
20K
12.43 mi12:25:021:34:157:3525:01
8:03
#12357
Half
13.11 mi12:30:181:39:317:355:16
7:43
#12428
25K
15.53 mi12:50:211:59:347:4220:03
8:16
#13006
30K
18.64 mi13:20:562:30:098:0330:35
9:51
#15174
20M
20.00 mi13:34:222:43:358:1113:26
9:53
#15696
21M
21.00 mi13:44:412:53:548:1710:19
10:19
#15955
35K
21.75 mi13:51:583:01:118:207:17
9:44
#16178
23M
23.00 mi14:04:283:13:418:2512:30
9:59
#16471
24M
24.00 mi14:14:073:23:208:289:39
9:39
#16710
40K
24.85 mi14:22:313:31:448:318:24
9:49
#16870
25.2M
25.20 mi14:26:113:35:248:333:40
10:38
#16936
Finish
26.22 mi14:35:373:44:508:359:26
9:15
#17094
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi126363132313210666(Top 38%)2208(Top 18%)2208(Top 40%)
10K6.21 mi3.10 mi11741+8952672+4602672+46010900(Top 38%)2260(Top 18%)2260(Top 41%)
15K9.32 mi3.11 mi11331+4102489+1832489+18310666(Top 38%)2208(Top 18%)2208(Top 40%)
20K12.43 mi3.11 mi12357-10263064-5753064-57515316(Top 54%)4814(Top 39%)4814(Top 88%)
Half13.11 mi0.68 mi12428-713110-463110-4613685(Top 48%)3907(Top 32%)3907(Top 71%)
25K15.53 mi2.42 mi13006-5783479-3693479-36915753(Top 55%)5167(Top 42%)5167(Top 94%)
30K18.64 mi3.11 mi15174-21684761-12824761-128221134(Top 74%)8303(Top 68%)8303(Top 152%)
20M20.00 mi1.36 mi15696-5225097-3365097-33620572(Top 72%)8116(Top 66%)8116(Top 148%)
21M21.00 mi1.00 mi15955-2595278-1815278-18119427(Top 68%)7568(Top 62%)7568(Top 138%)
35K21.75 mi0.75 mi16178-2235423-1455423-14521118(Top 74%)8560(Top 70%)8560(Top 157%)
23M23.00 mi1.25 mi16471-2935616-1935616-19320432(Top 72%)8253(Top 67%)8253(Top 151%)
24M24.00 mi1.00 mi16710-2395788-1725788-17220196(Top 71%)8180(Top 67%)8180(Top 150%)
40K24.85 mi0.85 mi16870-1605913-1255913-12519894(Top 70%)8090(Top 66%)8090(Top 148%)
25.2M25.20 mi0.35 mi16936-665964-515964-5119501(Top 69%)7888(Top 65%)7888(Top 144%)
Finish26.22 mi1.02 mi17094-1586070-1066070-10620221(Top 71%)8255(Top 68%)8255(Top 151%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21story building
+97ft-345ft

Overall

10666

Females

2208

F18-39

2208

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

10900

Females

2260

F18-39

2260

10K→15K

6.2 - 9.3 mi

Top 38%
×3story building
+67ft-78ft

Overall

10666

Females

2208

F18-39

2208

15K→20K

9.3 - 12.4 mi

Top 54%
×5story building
+106ft-86ft

Overall

15316

Females

4814

F18-39

4814

20K→Half

12.4 - 13.1 mi

Top 48%
×2story building
+19ft-37ft

Overall

13685

Females

3907

F18-39

3907

Half→25K

13.1 - 15.5 mi

Top 55%
×4story building
+66ft-88ft

Overall

15753

Females

5167

F18-39

5167

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

21134

Females

8303

F18-39

8303

30K→20M

18.6 - 20.0 mi

Top 72%
×5story building
+64ft-50ft

Overall

20572

Females

8116

F18-39

8116

20M→21M

20.0 - 21.0 mi

Top 68%
×8story building
+106ft-24ft

Overall

19427

Females

7568

F18-39

7568

21M→35K

21.0 - 21.8 mi

Top 74%
×7story building
+17ft-86ft

Overall

21118

Females

8560

F18-39

8560

35K→23M

21.8 - 23.0 mi

Top 72%
×5story building
+23ft-63ft

Overall

20432

Females

8253

F18-39

8253

23M→24M

23.0 - 24.0 mi

Top 71%
×6story building
+12ft-82ft

Overall

20196

Females

8180

F18-39

8180

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

19894

Females

8090

F18-39

8090

40K→25.2M

24.9 - 25.2 mi

Top 69%
×1story
+13ft-16ft

Overall

19501

Females

7888

F18-39

7888

25.2M→Finish

25.2 - 26.2 mi

Top 71%
×2story building
+22ft-21ft

Overall

20221

Females

8255

F18-39

8255

Passing Analysis

Category:
Athletes Passed
1783
Passed By
6241
Net Change
-4458
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12636
5K → 10K93338+895#12636#11741
10K → 15K44737+410#11741#11331
15K → 20K391065-1026#11331#12357
20K → Half1081-71#12357#12428
Half → 25K57635-578#12428#13006
25K → 30K212189-2168#13006#15174
30K → 20M36558-522#15174#15696
20M → 21M47306-259#15696#15955
21M → 35K21244-223#15955#16178
35K → 23M54347-293#16178#16471
23M → 24M22261-239#16471#16710
24M → 40K43203-160#16710#16870
40K → 25.2M2288-66#16870#16936
25.2M → Finish31189-158#16936#17094
TOTALS17836241-4458
📊

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