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BOSTON MARATHON 2025

Alexandra Sanchez

Bib: 31687•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
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
31:40
Rank: #26046
Start → 5K
10:12/mi
31:40 split
10K· 6.21 mi
1:03:54
Rank: #26065 (-19)
5K → 10K
10:22/mi
32:14 split
15K· 9.32 mi
1:38:10
Rank: #26346 (-281)
10K → 15K
11:02/mi
34:16 split
20K· 12.43 mi
2:13:44
Rank: #26426 (-80)
15K → 20K
11:27/mi
35:34 split
Half· 13.11 mi
2:21:09
Rank: #26422 (+4)
20K → Half
10:52/mi
7:25 split
25K· 15.53 mi
2:53:20
Rank: #26729 (-307)
Half → 25K
13:16/mi
32:11 split
30K· 18.64 mi
3:34:35
Rank: #26785 (-56)
25K → 30K
13:17/mi
41:15 split
20M
3:55:14
Rank: #26960 (-175)
30K → 20M
15:12/mi
20:39 split
21M
4:11:42
Rank: #27056 (-96)
20M → 21M
16:28/mi
16:28 split
35K· 21.75 mi
4:20:35
Rank: #27031 (+25)
21M → 35K
11:52/mi
8:53 split
23M
4:36:29
Rank: #27003 (+28)
35K → 23M
12:42/mi
15:54 split
24M
4:48:49
Rank: #26970 (+33)
23M → 24M
12:20/mi
12:20 split
40K· 24.85 mi
5:00:04
Rank: #26953 (+17)
24M → 40K
13:09/mi
11:15 split
25.2M
5:04:51
Rank: #26942 (+11)
40K → 25.2M
13:52/mi
4:47 split
Finish· 26.22 mi
5:17:38
Rank: #26959 (-17)
25.2M → Finish
12:33/mi
12:47 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:21:09
Pace10:46 /mi
2nd Half
Distance13.11 mi
Time2:56:29
Pace13:28 /mi
📊Positive Split: 25.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:58:1531:4010:1231:40
10:12
-
10K
6.21 mi12:30:291:03:5410:1732:14
10:22
+0:10
15K
9.32 mi13:04:451:38:1010:3234:16
11:02
+0:40
20K
12.43 mi13:40:192:13:4410:4635:34
11:27
+0:25
Half
13.11 mi13:47:442:21:0910:467:25
10:52
-0:35
25K
15.53 mi14:19:552:53:2011:0932:11
13:16
+2:24
30K
18.64 mi15:01:103:34:3511:3141:15
13:17
+0:01
20M
20.00 mi15:21:493:55:1411:4620:39
15:12
+1:55
21M
21.00 mi15:38:174:11:4211:5916:28
16:28
+1:16
35K
21.75 mi15:47:104:20:3511:598:53
11:52
-4:36
23M
23.00 mi16:03:044:36:2912:0115:54
12:42
+0:50
24M
24.00 mi16:15:244:48:4912:0212:20
12:20
-0:22
40K
24.85 mi16:26:395:00:0412:0411:15
13:09
+0:49
25.2M
25.20 mi16:31:265:04:5112:064:47
13:52
+0:43
Finish
26.22 mi16:44:135:17:3812:0712:47
12:33
-1:19

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

10:12 /mi

Average Pace

12:07 /mi

Slowest Pace

16:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:21:09

44% of race

Time at Steady Pace

2:14:35

42% of race

Time at Slower Pace

41:54

13% of race

Average Pace: 12:07 /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 mi11:58:1531:4010:1231:40
10:12
#26046
10K
6.21 mi12:30:291:03:5410:1732:14
10:22
#26065
15K
9.32 mi13:04:451:38:1010:3234:16
11:02
#26346
20K
12.43 mi13:40:192:13:4410:4635:34
11:27
#26426
Half
13.11 mi13:47:442:21:0910:467:25
10:52
#26422
25K
15.53 mi14:19:552:53:2011:0932:11
13:16
#26729
30K
18.64 mi15:01:103:34:3511:3141:15
13:17
#26785
20M
20.00 mi15:21:493:55:1411:4620:39
15:12
#26960
21M
21.00 mi15:38:174:11:4211:5916:28
16:28
#27056
35K
21.75 mi15:47:104:20:3511:598:53
11:52
#27031
23M
23.00 mi16:03:044:36:2912:0115:54
12:42
#27003
24M
24.00 mi16:15:244:48:4912:0212:20
12:20
#26970
40K
24.85 mi16:26:395:00:0412:0411:15
13:09
#26953
25.2M
25.20 mi16:31:265:04:5112:064:47
13:52
#26942
Finish
26.22 mi16:44:135:17:3812:0712:47
12:33
#26959
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26046107871078726704(Top 94%)11195(Top 92%)11195(Top 205%)
10K6.21 mi3.10 mi26065-1910810-2310810-2326054(Top 92%)10823(Top 89%)10823(Top 198%)
15K9.32 mi3.11 mi26346-28110975-16510975-16526704(Top 94%)11195(Top 92%)11195(Top 205%)
20K12.43 mi3.11 mi26426-8011029-5411029-5426568(Top 94%)11139(Top 91%)11139(Top 204%)
Half13.11 mi0.68 mi26422+411017+1211017+1226337(Top 93%)11023(Top 90%)11023(Top 202%)
25K15.53 mi2.42 mi26729-30711218-20111218-20127479(Top 97%)11701(Top 96%)11701(Top 214%)
30K18.64 mi3.11 mi26785-5611277-5911277-5926937(Top 95%)11456(Top 94%)11456(Top 209%)
20M20.00 mi1.36 mi26960-17511379-10211379-10227954(Top 98%)12030(Top 98%)12030(Top 220%)
21M21.00 mi1.00 mi27056-9611447-6811447-6827996(Top 99%)12051(Top 99%)12051(Top 220%)
35K21.75 mi0.75 mi27031+2511438+911438+925666(Top 90%)10936(Top 89%)10936(Top 200%)
23M23.00 mi1.25 mi27003+2811427+1111427+1126037(Top 92%)11113(Top 91%)11113(Top 203%)
24M24.00 mi1.00 mi26970+3311412+1511412+1526094(Top 92%)11173(Top 91%)11173(Top 204%)
40K24.85 mi0.85 mi26953+1711413-111413-126440(Top 93%)11352(Top 93%)11352(Top 208%)
25.2M25.20 mi0.35 mi26942+11114131141326111(Top 92%)11238(Top 92%)11238(Top 205%)
Finish26.22 mi1.02 mi26959-1711425-1211425-1227322(Top 96%)11783(Top 96%)11783(Top 215%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 94%
×21story building
+97ft-345ft

Overall

26704

Females

11195

F18-39

11195

5K→10K

3.1 - 6.2 mi

Top 92%
×5story building
+79ft-138ft

Overall

26054

Females

10823

F18-39

10823

10K→15K

6.2 - 9.3 mi

Top 94%
×3story building
+67ft-78ft

Overall

26704

Females

11195

F18-39

11195

15K→20K

9.3 - 12.4 mi

Top 94%
×5story building
+106ft-86ft

Overall

26568

Females

11139

F18-39

11139

20K→Half

12.4 - 13.1 mi

Top 93%
×2story building
+19ft-37ft

Overall

26337

Females

11023

F18-39

11023

Half→25K

13.1 - 15.5 mi

Top 97%
×4story building
+66ft-88ft

Overall

27479

Females

11701

F18-39

11701

25K→30K

15.5 - 18.6 mi

Top 95%
×9story building
+181ft-148ft

Overall

26937

Females

11456

F18-39

11456

30K→20M

18.6 - 20.0 mi

Top 98%
×5story building
+64ft-50ft

Overall

27954

Females

12030

F18-39

12030

20M→21M

20.0 - 21.0 mi

Top 99%
×8story building
+106ft-24ft

Overall

27996

Females

12051

F18-39

12051

21M→35K

21.0 - 21.8 mi

Top 90%
×7story building
+17ft-86ft

Overall

25666

Females

10936

F18-39

10936

35K→23M

21.8 - 23.0 mi

Top 92%
×5story building
+23ft-63ft

Overall

26037

Females

11113

F18-39

11113

23M→24M

23.0 - 24.0 mi

Top 92%
×6story building
+12ft-82ft

Overall

26094

Females

11173

F18-39

11173

24M→40K

24.0 - 24.9 mi

Top 93%
×1story
+6ft-20ft

Overall

26440

Females

11352

F18-39

11352

40K→25.2M

24.9 - 25.2 mi

Top 92%
×1story
+13ft-16ft

Overall

26111

Females

11238

F18-39

11238

25.2M→Finish

25.2 - 26.2 mi

Top 96%
×2story building
+22ft-21ft

Overall

27322

Females

11783

F18-39

11783

Passing Analysis

Category:
Athletes Passed
584
Passed By
1497
Net Change
-913
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26046
5K → 10K157176-19#26046#26065
10K → 15K56337-281#26065#26346
15K → 20K90170-80#26346#26426
20K → Half2117+4#26426#26422
Half → 25K18325-307#26422#26729
25K → 30K69125-56#26729#26785
30K → 20M4179-175#26785#26960
20M → 21M399-96#26960#27056
21M → 35K316+25#27056#27031
35K → 23M357+28#27031#27003
23M → 24M4512+33#27003#26970
24M → 40K3013+17#26970#26953
40K → 25.2M154+11#26953#26942
25.2M → Finish1027-17#26942#26959
TOTALS5841497-913
📊

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