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BOSTON MARATHON 2025

Alejandra Cárdenas Salazar

Bib: 17183•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 38%
Gender (Female)
#0 / 12228
Top 21%
Division (F18-39)
#0 / 5469
Top 37%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:01
Rank: #14218
Start → 5K
24:01 | 7:44/mi
10K· 6.21 mi
47:42
Rank: #13729 (+489)
5K → 10K
23:41 | 7:37/mi
15K· 9.32 mi
1:11:25
Rank: #13423 (+306)
10K → 15K
23:43 | 7:38/mi
20K· 12.43 mi
1:35:22
Rank: #13145 (+278)
15K → 20K
23:57 | 7:43/mi
Half· 13.11 mi
1:40:33
Rank: #13103 (+42)
20K → Half
5:11 | 7:36/mi
25K· 15.53 mi
1:59:17
Rank: #12838 (+265)
Half → 25K
18:44 | 7:44/mi
30K· 18.64 mi
2:23:37
Rank: #12314 (+524)
25K → 30K
24:20 | 7:50/mi
20M
2:34:12
Rank: #12000 (+314)
30K → 20M
10:35 | 7:47/mi
21M
2:42:27
Rank: #11779 (+221)
20M → 21M
8:15 | 8:15/mi
35K· 21.75 mi
2:48:04
Rank: #11642 (+137)
21M → 35K
5:37 | 7:30/mi
23M
2:57:47
Rank: #11386 (+256)
35K → 23M
9:43 | 7:46/mi
24M
3:05:22
Rank: #11189 (+197)
23M → 24M
7:35 | 7:35/mi
40K· 24.85 mi
3:11:49
Rank: #10999 (+190)
24M → 40K
6:27 | 7:33/mi
25.2M
3:14:34
Rank: #10899 (+100)
40K → 25.2M
2:45 | 7:58/mi
Finish· 26.22 mi
3:21:53
Rank: #10692 (+207)
25.2M → Finish
7:19 | 7:11/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:40:33
Pace7:40 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:41:20
Pace7:44 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:1324:017:4424:01
7:44
-
10K
6.21 mi11:37:5447:427:4123:41
7:37
-0:07
15K
9.32 mi12:01:371:11:257:4023:43
7:38
+0:01
20K
12.43 mi12:25:341:35:227:4023:57
7:43
+0:05
Half
13.11 mi12:30:451:40:337:405:11
7:36
-0:07
25K
15.53 mi12:49:291:59:177:4118:44
7:44
+0:08
30K
18.64 mi13:13:492:23:377:4224:20
7:50
+0:06
20M
20.00 mi13:24:242:34:127:4310:35
7:47
-0:03
21M
21.00 mi13:32:392:42:277:448:15
8:15
+0:28
35K
21.75 mi13:38:162:48:047:445:37
7:30
-0:45
23M
23.00 mi13:47:592:57:477:449:43
7:46
+0:16
24M
24.00 mi13:55:343:05:227:437:35
7:35
-0:11
40K
24.85 mi14:02:013:11:497:436:27
7:33
-0:02
25.2M
25.20 mi14:04:463:14:347:432:45
7:58
+0:25
Finish
26.22 mi14:12:053:21:537:427:19
7:11
-0:47

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

7:11 /mi

Average Pace

7:42 /mi

Slowest Pace

8:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:10:53

95% of race

Time at Steady Pace

11:00

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:42 /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 mi11:14:1324:017:4424:01
7:44
#14218
10K
6.21 mi11:37:5447:427:4123:41
7:37
#13729
15K
9.32 mi12:01:371:11:257:4023:43
7:38
#13423
20K
12.43 mi12:25:341:35:227:4023:57
7:43
#13145
Half
13.11 mi12:30:451:40:337:405:11
7:36
#13103
25K
15.53 mi12:49:291:59:177:4118:44
7:44
#12838
30K
18.64 mi13:13:492:23:377:4224:20
7:50
#12314
20M
20.00 mi13:24:242:34:127:4310:35
7:47
#12000
21M
21.00 mi13:32:392:42:277:448:15
8:15
#11779
35K
21.75 mi13:38:162:48:047:445:37
7:30
#11642
23M
23.00 mi13:47:592:57:477:449:43
7:46
#11386
24M
24.00 mi13:55:343:05:227:437:35
7:35
#11189
40K
24.85 mi14:02:013:11:497:436:27
7:33
#10999
25.2M
25.20 mi14:04:463:14:347:432:45
7:58
#10899
Finish
26.22 mi14:12:053:21:537:427:19
7:11
#10692
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi142184042404212920(Top 45%)3397(Top 28%)3397(Top 62%)
10K6.21 mi3.10 mi13729+4893781+2613781+26113235(Top 47%)3512(Top 29%)3512(Top 64%)
15K9.32 mi3.11 mi13423+3063639+1423639+14212920(Top 45%)3397(Top 28%)3397(Top 62%)
20K12.43 mi3.11 mi13145+2783524+1153524+11512496(Top 44%)3266(Top 27%)3266(Top 60%)
Half13.11 mi0.68 mi13103+423504+203504+2012565(Top 44%)3249(Top 27%)3249(Top 59%)
25K15.53 mi2.42 mi12838+2653381+1233381+12311758(Top 41%)2998(Top 25%)2998(Top 55%)
30K18.64 mi3.11 mi12314+5243164+2173164+21710177(Top 36%)2369(Top 19%)2369(Top 43%)
20M20.00 mi1.36 mi12000+3143036+1283036+1288980(Top 32%)1987(Top 16%)1987(Top 36%)
21M21.00 mi1.00 mi11779+2212954+822954+828942(Top 31%)2147(Top 18%)2147(Top 39%)
35K21.75 mi0.75 mi11642+1372908+462908+468740(Top 31%)2019(Top 17%)2019(Top 37%)
23M23.00 mi1.25 mi11386+2562825+832825+838346(Top 29%)1975(Top 16%)1975(Top 36%)
24M24.00 mi1.00 mi11189+1972755+702755+708342(Top 29%)2034(Top 17%)2034(Top 37%)
40K24.85 mi0.85 mi10999+1902694+612694+617108(Top 25%)1610(Top 13%)1610(Top 29%)
25.2M25.20 mi0.35 mi10899+1002657+372657+375913(Top 21%)1239(Top 10%)1239(Top 23%)
Finish26.22 mi1.02 mi10692+2072571+862571+866959(Top 25%)1636(Top 13%)1636(Top 30%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21stories
+97ft-345ft

Overall

12920

Females

3397

F18-39

3397

5K→10K

3.1 - 6.2 mi

Top 47%
×5stories
+79ft-138ft

Overall

13235

Females

3512

F18-39

3512

10K→15K

6.2 - 9.3 mi

Top 45%
×3stories
+67ft-78ft

Overall

12920

Females

3397

F18-39

3397

15K→20K

9.3 - 12.4 mi

Top 44%
×5stories
+106ft-86ft

Overall

12496

Females

3266

F18-39

3266

20K→Half

12.4 - 13.1 mi

Top 44%
×2stories
+19ft-37ft

Overall

12565

Females

3249

F18-39

3249

Half→25K

13.1 - 15.5 mi

Top 41%
×4stories
+66ft-88ft

Overall

11758

Females

2998

F18-39

2998

25K→30K

15.5 - 18.6 mi

Top 36%
×9stories
+181ft-148ft

Overall

10177

Females

2369

F18-39

2369

30K→20M

18.6 - 20.0 mi

Top 32%
×5stories
+64ft-50ft

Overall

8980

Females

1987

F18-39

1987

20M→21M

20.0 - 21.0 mi

Top 31%
×8stories
+106ft-24ft

Overall

8942

Females

2147

F18-39

2147

21M→35K

21.0 - 21.8 mi

Top 31%
×7stories
+17ft-86ft

Overall

8740

Females

2019

F18-39

2019

35K→23M

21.8 - 23.0 mi

Top 29%
×5stories
+23ft-63ft

Overall

8346

Females

1975

F18-39

1975

23M→24M

23.0 - 24.0 mi

Top 29%
×6stories
+12ft-82ft

Overall

8342

Females

2034

F18-39

2034

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

7108

Females

1610

F18-39

1610

40K→25.2M

24.9 - 25.2 mi

Top 21%
×1story
+13ft-16ft

Overall

5913

Females

1239

F18-39

1239

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2stories
+22ft-21ft

Overall

6959

Females

1636

F18-39

1636

Passing Analysis

Category:
Athletes Passed
3901
Passed By
375
Net Change
+3526
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14218
5K → 10K58394+489#14218#13729
10K → 15K37569+306#13729#13423
15K → 20K34365+278#13423#13145
20K → Half5614+42#13145#13103
Half → 25K30439+265#13103#12838
25K → 30K55127+524#12838#12314
30K → 20M3217+314#12314#12000
20M → 21M23817+221#12000#11779
21M → 35K1458+137#11779#11642
35K → 23M26711+256#11642#11386
23M → 24M2047+197#11386#11189
24M → 40K1999+190#11189#10999
40K → 25.2M1033+100#10999#10899
25.2M → Finish2125+207#10899#10692
TOTALS3901375+3526
📊

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