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BOSTON MARATHON 2025

Vanessa Powers-Sifuentes

Bib: 12432•F

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 39%
Gender (Female)
#0 / 12228
Top 22%
Division (F18-39)
#0 / 5469
Top 38%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:39
Rank: #10290
Start → 5K
22:39 | 7:17/mi
10K· 6.21 mi
44:59
Rank: #9806 (+484)
5K → 10K
22:20 | 7:11/mi
15K· 9.32 mi
1:07:15
Rank: #9452 (+354)
10K → 15K
22:16 | 7:10/mi
20K· 12.43 mi
1:29:52
Rank: #9273 (+179)
15K → 20K
22:37 | 7:17/mi
Half· 13.11 mi
1:34:54
Rank: #9344 (-71)
20K → Half
5:02 | 7:23/mi
25K· 15.53 mi
1:53:03
Rank: #9381 (-37)
Half → 25K
18:09 | 7:29/mi
30K· 18.64 mi
2:18:23
Rank: #9911 (-530)
25K → 30K
25:20 | 8:09/mi
20M
2:29:33
Rank: #10039 (-128)
30K → 20M
11:10 | 8:13/mi
21M
2:38:32
Rank: #10240 (-201)
20M → 21M
8:59 | 8:59/mi
35K· 21.75 mi
2:44:33
Rank: #10340 (-100)
21M → 35K
6:01 | 8:03/mi
23M
2:56:52
Rank: #11055 (-715)
35K → 23M
12:19 | 9:50/mi
24M
3:06:32
Rank: #11607 (-552)
23M → 24M
9:40 | 9:40/mi
40K· 24.85 mi
3:12:59
Rank: #11390 (+217)
24M → 40K
6:27 | 7:33/mi
25.2M
3:15:35
Rank: #11203 (+187)
40K → 25.2M
2:36 | 7:32/mi
Finish· 26.22 mi
3:22:45
Rank: #10960 (+243)
25.2M → Finish
7:10 | 7:02/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:54
Pace7:14 /mi
2nd Half
Distance13.11 mi
Time1:47:51
Pace8:14 /mi
📊Positive Split: 13.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:4422:397:1722:39
7:17
-
10K
6.21 mi11:13:0444:597:1422:20
7:11
-0:06
15K
9.32 mi11:35:201:07:157:1322:16
7:10
-0:01
20K
12.43 mi11:57:571:29:527:1422:37
7:17
+0:07
Half
13.11 mi12:02:591:34:547:145:02
7:23
+0:06
25K
15.53 mi12:21:081:53:037:1718:09
7:29
+0:06
30K
18.64 mi12:46:282:18:237:2525:20
8:09
+0:40
20M
20.00 mi12:57:382:29:337:2911:10
8:13
+0:04
21M
21.00 mi13:06:372:38:327:338:59
8:59
+0:46
35K
21.75 mi13:12:382:44:337:346:01
8:03
-0:56
23M
23.00 mi13:24:572:56:527:4112:19
9:50
+1:47
24M
24.00 mi13:34:373:06:327:469:40
9:40
-0:10
40K
24.85 mi13:41:043:12:597:466:27
7:33
-2:07
25.2M
25.20 mi13:43:403:15:357:462:36
7:32
-0:01
Finish
26.22 mi13:50:503:22:457:447:10
7:02
-0:30

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

7:02 /mi

Average Pace

7:44 /mi

Slowest Pace

9:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

7:10

4% of race

Time at Steady Pace

2:02:06

60% of race

Time at Slower Pace

1:13:29

36% of race

Average Pace: 7:44 /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 mi10:50:4422:397:1722:39
7:17
#10290
10K
6.21 mi11:13:0444:597:1422:20
7:11
#9806
15K
9.32 mi11:35:201:07:157:1322:16
7:10
#9452
20K
12.43 mi11:57:571:29:527:1422:37
7:17
#9273
Half
13.11 mi12:02:591:34:547:145:02
7:23
#9344
25K
15.53 mi12:21:081:53:037:1718:09
7:29
#9381
30K
18.64 mi12:46:282:18:237:2525:20
8:09
#9911
20M
20.00 mi12:57:382:29:337:2911:10
8:13
#10039
21M
21.00 mi13:06:372:38:327:338:59
8:59
#10240
35K
21.75 mi13:12:382:44:337:346:01
8:03
#10340
23M
23.00 mi13:24:572:56:527:4112:19
9:50
#11055
24M
24.00 mi13:34:373:06:327:469:40
9:40
#11607
40K
24.85 mi13:41:043:12:597:466:27
7:33
#11390
25.2M
25.20 mi13:43:403:15:357:462:36
7:32
#11203
Finish
26.22 mi13:50:503:22:457:447:10
7:02
#10960
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi10290194519458861(Top 31%)1373(Top 11%)1373(Top 25%)
10K6.21 mi3.10 mi9806+4841714+2311714+2319410(Top 33%)1563(Top 13%)1563(Top 29%)
15K9.32 mi3.11 mi9452+3541581+1331581+1338861(Top 31%)1373(Top 11%)1373(Top 25%)
20K12.43 mi3.11 mi9273+1791532+491532+498901(Top 31%)1485(Top 12%)1485(Top 27%)
Half13.11 mi0.68 mi9344-711573-411573-4110763(Top 38%)2328(Top 19%)2328(Top 43%)
25K15.53 mi2.42 mi9381-371621-481621-489869(Top 35%)2055(Top 17%)2055(Top 38%)
30K18.64 mi3.11 mi9911-5301914-2931914-29312482(Top 44%)3549(Top 29%)3549(Top 65%)
20M20.00 mi1.36 mi10039-1282008-942008-9411918(Top 42%)3394(Top 28%)3394(Top 62%)
21M21.00 mi1.00 mi10240-2012162-1542162-15413405(Top 47%)4311(Top 35%)4311(Top 79%)
35K21.75 mi0.75 mi10340-1002235-732235-7312548(Top 44%)3911(Top 32%)3911(Top 72%)
23M23.00 mi1.25 mi11055-7152643-4082643-40819927(Top 70%)8007(Top 65%)8007(Top 146%)
24M24.00 mi1.00 mi11607-5522973-3302973-33020272(Top 71%)8219(Top 67%)8219(Top 150%)
40K24.85 mi0.85 mi11390+2172898+752898+757110(Top 25%)1612(Top 13%)1612(Top 29%)
25.2M25.20 mi0.35 mi11203+1872812+862812+863700(Top 13%)502(Top 4%)502(Top 9%)
Finish26.22 mi1.02 mi10960+2432724+882724+886000(Top 21%)1263(Top 10%)1263(Top 23%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21stories
+97ft-345ft

Overall

8861

Females

1373

F18-39

1373

5K→10K

3.1 - 6.2 mi

Top 33%
×5stories
+79ft-138ft

Overall

9410

Females

1563

F18-39

1563

10K→15K

6.2 - 9.3 mi

Top 31%
×3stories
+67ft-78ft

Overall

8861

Females

1373

F18-39

1373

15K→20K

9.3 - 12.4 mi

Top 31%
×5stories
+106ft-86ft

Overall

8901

Females

1485

F18-39

1485

20K→Half

12.4 - 13.1 mi

Top 38%
×2stories
+19ft-37ft

Overall

10763

Females

2328

F18-39

2328

Half→25K

13.1 - 15.5 mi

Top 35%
×4stories
+66ft-88ft

Overall

9869

Females

2055

F18-39

2055

25K→30K

15.5 - 18.6 mi

Top 44%
×9stories
+181ft-148ft

Overall

12482

Females

3549

F18-39

3549

30K→20M

18.6 - 20.0 mi

Top 42%
×5stories
+64ft-50ft

Overall

11918

Females

3394

F18-39

3394

20M→21M

20.0 - 21.0 mi

Top 47%
×8stories
+106ft-24ft

Overall

13405

Females

4311

F18-39

4311

21M→35K

21.0 - 21.8 mi

Top 44%
×7stories
+17ft-86ft

Overall

12548

Females

3911

F18-39

3911

35K→23M

21.8 - 23.0 mi

Top 70%
×5stories
+23ft-63ft

Overall

19927

Females

8007

F18-39

8007

23M→24M

23.0 - 24.0 mi

Top 71%
×6stories
+12ft-82ft

Overall

20272

Females

8219

F18-39

8219

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

7110

Females

1612

F18-39

1612

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3700

Females

502

F18-39

502

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2stories
+22ft-21ft

Overall

6000

Females

1263

F18-39

1263

Passing Analysis

Category:
Athletes Passed
2325*
Passed By
2992
Net Change
-670
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10290
5K → 10K559*75+484#10290#9806
10K → 15K39238+354#9806#9452
15K → 20K26485+179#9452#9273
20K → Half1081-71#9273#9344
Half → 25K145182-37#9344#9381
25K → 30K101631-530#9381#9911
30K → 20M83209-128#9911#10039
20M → 21M55255-201#10039#10240
21M → 35K33133-100#10240#10340
35K → 23M14729-715#10340#11055
23M → 24M18570-552#11055#11607
24M → 40K2203+217#11607#11390
40K → 25.2M1870+187#11390#11203
25.2M → Finish2441+243#11203#10960
TOTALS2325*2992-670

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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