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BOSTON MARATHON 2025

Laura Cortez

Bib: 21596•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 45%
Masters (Masters Women)
#0 / 6759
Top 32%
Division (F40-44)
#0 / 1718
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:28/mi
26:19
↑ 97↓ 3451.5%
10K· 6.21 mi
8:13/mi
51:52
↑ 79↓ 1380.4%
15K· 9.32 mi
8:11/mi
1:17:18
↑ 67↓ 78
20K· 12.43 mi
8:16/mi
1:42:58
↑ 106↓ 860.1%
Half· 13.11 mi
8:15/mi
1:48:36
↑ 19↓ 370.5%
25K· 15.53 mi
8:21/mi
2:08:50
↑ 66↓ 880.2%
30K· 18.64 mi
8:37/mi
2:35:36
↑ 181↓ 1480.2%
20M
8:42/mi
2:47:25
↑ 64↓ 500.2%
21M
9:16/mi
2:56:41
↑ 106↓ 241.6%
35K· 21.75 mi
8:17/mi
3:02:53
↑ 17↓ 861.7%
23M
8:23/mi
3:13:23
↑ 23↓ 630.6%
24M
8:13/mi
3:21:36
↓ 821.3%
40K· 24.85 mi
8:33/mi
3:28:55
↓ 200.3%
25.2M
9:52/mi
3:32:19
↑ 13↓ 160.2%
Finish· 26.22 mi
8:15/mi
3:40:43
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:36
Pace8:17 /mi
2nd Half
Distance13.11 mi
Time1:52:07
Pace8:33 /mi
📊Positive Split: 3.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:0126:198:2826:19
8:28
-
10K
6.21 mi11:48:3451:528:2125:33
8:13
-0:15
15K
9.32 mi12:14:001:17:188:1825:26
8:11
-0:02
20K
12.43 mi12:39:401:42:588:1725:40
8:16
+0:05
Half
13.11 mi12:45:181:48:368:175:38
8:15
-0:01
25K
15.53 mi13:05:322:08:508:1820:14
8:21
+0:06
30K
18.64 mi13:32:182:35:368:2126:46
8:37
+0:16
20M
20.00 mi13:44:072:47:258:2211:49
8:42
+0:05
21M
21.00 mi13:53:232:56:418:259:16
9:16
+0:34
35K
21.75 mi13:59:353:02:538:256:12
8:17
-0:59
23M
23.00 mi14:10:053:13:238:2410:30
8:23
+0:06
24M
24.00 mi14:18:183:21:368:248:13
8:13
-0:10
40K
24.85 mi14:25:373:28:558:247:19
8:33
+0:20
25.2M
25.20 mi14:29:013:32:198:263:24
9:52
+1:19
Finish
26.22 mi14:37:253:40:438:258:24
8:15
-1:37

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

8:11 /mi

Average Pace

8:25 /mi

Slowest Pace

9:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:49:28

77% of race

Time at Slower Pace

51:15

23% of race

Average Pace: 8:25 /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 mi11:23:0126:198:2826:19
8:28
#19718
10K
6.21 mi11:48:3451:528:2125:33
8:13
#18908
15K
9.32 mi12:14:001:17:188:1825:26
8:11
#18369
20K
12.43 mi12:39:401:42:588:1725:40
8:16
#17910
Half
13.11 mi12:45:181:48:368:175:38
8:15
#17880
25K
15.53 mi13:05:322:08:508:1820:14
8:21
#17558
30K
18.64 mi13:32:182:35:368:2126:46
8:37
#17125
20M
20.00 mi13:44:072:47:258:2211:49
8:42
#16956
21M
21.00 mi13:53:232:56:418:259:16
9:16
#16793
35K
21.75 mi13:59:353:02:538:256:12
8:17
#16686
23M
23.00 mi14:10:053:13:238:2410:30
8:23
#16394
24M
24.00 mi14:18:183:21:368:248:13
8:13
#16196
40K
24.85 mi14:25:373:28:558:247:19
8:33
#16115
25.2M
25.20 mi14:29:013:32:198:263:24
9:52
#16110
Finish
26.22 mi14:37:253:40:438:258:24
8:15
#16044
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi197187336733617316(Top 61%)5907(Top 48%)5907(Top 344%)
10K6.21 mi3.10 mi18908+8106848+4886848+48818061(Top 64%)6330(Top 52%)6330(Top 368%)
15K9.32 mi3.11 mi18369+5396546+3026546+30217316(Top 61%)5907(Top 48%)5907(Top 344%)
20K12.43 mi3.11 mi17910+4596282+2646282+26416712(Top 59%)5613(Top 46%)5613(Top 327%)
Half13.11 mi0.68 mi17880+306275+76275+717665(Top 62%)6119(Top 50%)6119(Top 356%)
25K15.53 mi2.42 mi17558+3226095+1806095+18016217(Top 57%)5432(Top 44%)5432(Top 316%)
30K18.64 mi3.11 mi17125+4335888+2075888+20715488(Top 55%)5171(Top 42%)5171(Top 301%)
20M20.00 mi1.36 mi16956+1695812+765812+7615061(Top 53%)5082(Top 42%)5082(Top 296%)
21M21.00 mi1.00 mi16793+1635754+585754+5814992(Top 53%)5175(Top 42%)5175(Top 301%)
35K21.75 mi0.75 mi16686+1075713+415713+4114220(Top 50%)4808(Top 39%)4808(Top 280%)
23M23.00 mi1.25 mi16394+2925569+1445569+14412627(Top 44%)4076(Top 33%)4076(Top 237%)
24M24.00 mi1.00 mi16196+1985496+735496+7312740(Top 45%)4195(Top 34%)4195(Top 244%)
40K24.85 mi0.85 mi16115+815468+285468+2813827(Top 49%)4875(Top 40%)4875(Top 284%)
25.2M25.20 mi0.35 mi16110+55474-65474-616423(Top 58%)6284(Top 51%)6284(Top 366%)
Finish26.22 mi1.02 mi16044+665456+185456+1814588(Top 51%)5256(Top 43%)5256(Top 306%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21story building
+97ft-345ft

Overall

17316

Females

5907

F40-44

5907

5K→10K

3.1 - 6.2 mi

Top 64%
×5story building
+79ft-138ft

Overall

18061

Females

6330

F40-44

6330

10K→15K

6.2 - 9.3 mi

Top 61%
×3story building
+67ft-78ft

Overall

17316

Females

5907

F40-44

5907

15K→20K

9.3 - 12.4 mi

Top 59%
×5story building
+106ft-86ft

Overall

16712

Females

5613

F40-44

5613

20K→Half

12.4 - 13.1 mi

Top 62%
×2story building
+19ft-37ft

Overall

17665

Females

6119

F40-44

6119

Half→25K

13.1 - 15.5 mi

Top 57%
×4story building
+66ft-88ft

Overall

16217

Females

5432

F40-44

5432

25K→30K

15.5 - 18.6 mi

Top 55%
×9story building
+181ft-148ft

Overall

15488

Females

5171

F40-44

5171

30K→20M

18.6 - 20.0 mi

Top 53%
×5story building
+64ft-50ft

Overall

15061

Females

5082

F40-44

5082

20M→21M

20.0 - 21.0 mi

Top 53%
×8story building
+106ft-24ft

Overall

14992

Females

5175

F40-44

5175

21M→35K

21.0 - 21.8 mi

Top 50%
×7story building
+17ft-86ft

Overall

14220

Females

4808

F40-44

4808

35K→23M

21.8 - 23.0 mi

Top 44%
×5story building
+23ft-63ft

Overall

12627

Females

4076

F40-44

4076

23M→24M

23.0 - 24.0 mi

Top 45%
×6story building
+12ft-82ft

Overall

12740

Females

4195

F40-44

4195

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

13827

Females

4875

F40-44

4875

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1story
+13ft-16ft

Overall

16423

Females

6284

F40-44

6284

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2story building
+22ft-21ft

Overall

14588

Females

5256

F40-44

5256

Passing Analysis

Category:
Athletes Passed
4012
Passed By
338
Net Change
+3674
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19718
5K → 10K86252+810#19718#18908
10K → 15K57132+539#18908#18369
15K → 20K48122+459#18369#17910
20K → Half4717+30#17910#17880
Half → 25K34321+322#17880#17558
25K → 30K46431+433#17558#17125
30K → 20M18920+169#17125#16956
20M → 21M19431+163#16956#16793
21M → 35K12013+107#16793#16686
35K → 23M2964+292#16686#16394
23M → 24M2046+198#16394#16196
24M → 40K10625+81#16196#16115
40K → 25.2M3328+5#16115#16110
25.2M → Finish10236+66#16110#16044
TOTALS4012338+3674
📊

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