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BOSTON MARATHON 2025

Natalia Zambrano

Bib: 30060•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
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
8:50/mi
27:26
↑ 97↓ 3451.5%
10K· 6.21 mi
8:43/mi
54:32
↑ 79↓ 1380.4%
15K· 9.32 mi
8:43/mi
1:21:36
↑ 67↓ 78
20K· 12.43 mi
8:52/mi
1:49:10
↑ 106↓ 860.1%
Half· 13.11 mi
8:37/mi
1:55:03
↑ 19↓ 370.5%
25K· 15.53 mi
8:56/mi
2:16:42
↑ 66↓ 880.2%
30K· 18.64 mi
9:26/mi
2:46:01
↑ 181↓ 1480.2%
20M
9:19/mi
2:58:41
↑ 64↓ 500.2%
21M
10:00/mi
3:08:41
↑ 106↓ 241.6%
35K· 21.75 mi
9:08/mi
3:15:31
↑ 17↓ 861.7%
23M
9:20/mi
3:27:12
↑ 23↓ 630.6%
24M
9:04/mi
3:36:16
↓ 821.3%
40K· 24.85 mi
9:09/mi
3:44:05
↓ 200.3%
25.2M
9:52/mi
3:47:29
↑ 13↓ 160.2%
Finish· 26.22 mi
8:45/mi
3:56:24
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:03
Pace8:47 /mi
2nd Half
Distance13.11 mi
Time2:01:21
Pace9:15 /mi
📊Positive Split: 5.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:4427:268:5027:26
8:50
-
10K
6.21 mi12:17:5054:328:4727:06
8:43
-0:07
15K
9.32 mi12:44:541:21:368:4527:04
8:43
0:00
20K
12.43 mi13:12:281:49:108:4727:34
8:52
+0:09
Half
13.11 mi13:18:211:55:038:475:53
8:37
-0:15
25K
15.53 mi13:40:002:16:428:4821:39
8:56
+0:19
30K
18.64 mi14:09:192:46:018:5429:19
9:26
+0:30
20M
20.00 mi14:21:592:58:418:5612:40
9:19
-0:07
21M
21.00 mi14:31:593:08:418:5910:00
10:00
+0:41
35K
21.75 mi14:38:493:15:318:596:50
9:08
-0:52
23M
23.00 mi14:50:303:27:129:0111:41
9:20
+0:12
24M
24.00 mi14:59:343:36:169:019:04
9:04
-0:16
40K
24.85 mi15:07:233:44:059:017:49
9:09
+0:05
25.2M
25.20 mi15:10:473:47:299:023:24
9:52
+0:43
Finish
26.22 mi15:19:423:56:249:018:55
8:45
-1:07

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

8:37 /mi

Average Pace

9:01 /mi

Slowest Pace

10:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:43:00

94% of race

Time at Steady Pace

13:24

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:01 /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 mi11:50:4427:268:5027:26
8:50
#21667
10K
6.21 mi12:17:5054:328:4727:06
8:43
#21325
15K
9.32 mi12:44:541:21:368:4527:04
8:43
#21023
20K
12.43 mi13:12:281:49:108:4727:34
8:52
#20836
Half
13.11 mi13:18:211:55:038:475:53
8:37
#20806
25K
15.53 mi13:40:002:16:428:4821:39
8:56
#20631
30K
18.64 mi14:09:192:46:018:5429:19
9:26
#20400
20M
20.00 mi14:21:592:58:418:5612:40
9:19
#20239
21M
21.00 mi14:31:593:08:418:5910:00
10:00
#20120
35K
21.75 mi14:38:493:15:318:596:50
9:08
#20069
23M
23.00 mi14:50:303:27:129:0111:41
9:20
#19962
24M
24.00 mi14:59:343:36:169:019:04
9:04
#19858
40K
24.85 mi15:07:233:44:059:017:49
9:09
#19758
25.2M
25.20 mi15:10:473:47:299:023:24
9:52
#19706
Finish
26.22 mi15:19:423:56:249:018:55
8:45
#19640
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi216678442844220564(Top 72%)7749(Top 63%)7749(Top 451%)
10K6.21 mi3.10 mi21325+3428231+2118231+21121010(Top 74%)8019(Top 66%)8019(Top 467%)
15K9.32 mi3.11 mi21023+3028053+1788053+17820564(Top 72%)7749(Top 63%)7749(Top 451%)
20K12.43 mi3.11 mi20836+1877945+1087945+10820349(Top 72%)7681(Top 63%)7681(Top 447%)
Half13.11 mi0.68 mi20806+307925+207925+2019975(Top 70%)7463(Top 61%)7463(Top 434%)
25K15.53 mi2.42 mi20631+1757839+867839+8619587(Top 69%)7308(Top 60%)7308(Top 425%)
30K18.64 mi3.11 mi20400+2317762+777762+7719689(Top 69%)7494(Top 61%)7494(Top 436%)
20M20.00 mi1.36 mi20239+1617688+747688+7418408(Top 65%)6957(Top 57%)6957(Top 405%)
21M21.00 mi1.00 mi20120+1197650+387650+3818316(Top 64%)6963(Top 57%)6963(Top 405%)
35K21.75 mi0.75 mi20069+517634+167634+1618909(Top 67%)7406(Top 61%)7406(Top 431%)
23M23.00 mi1.25 mi19962+1077603+317603+3117952(Top 63%)6967(Top 57%)6967(Top 406%)
24M24.00 mi1.00 mi19858+1047573+307573+3017735(Top 62%)6901(Top 56%)6901(Top 402%)
40K24.85 mi0.85 mi19758+1007526+477526+4717125(Top 60%)6656(Top 54%)6656(Top 387%)
25.2M25.20 mi0.35 mi19706+527507+197507+1916473(Top 58%)6334(Top 52%)6334(Top 369%)
Finish26.22 mi1.02 mi19640+667487+207487+2017813(Top 63%)6996(Top 57%)6996(Top 407%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21story building
+97ft-345ft

Overall

20564

Females

7749

F40-44

7749

5K→10K

3.1 - 6.2 mi

Top 74%
×5story building
+79ft-138ft

Overall

21010

Females

8019

F40-44

8019

10K→15K

6.2 - 9.3 mi

Top 72%
×3story building
+67ft-78ft

Overall

20564

Females

7749

F40-44

7749

15K→20K

9.3 - 12.4 mi

Top 72%
×5story building
+106ft-86ft

Overall

20349

Females

7681

F40-44

7681

20K→Half

12.4 - 13.1 mi

Top 70%
×2story building
+19ft-37ft

Overall

19975

Females

7463

F40-44

7463

Half→25K

13.1 - 15.5 mi

Top 69%
×4story building
+66ft-88ft

Overall

19587

Females

7308

F40-44

7308

25K→30K

15.5 - 18.6 mi

Top 69%
×9story building
+181ft-148ft

Overall

19689

Females

7494

F40-44

7494

30K→20M

18.6 - 20.0 mi

Top 65%
×5story building
+64ft-50ft

Overall

18408

Females

6957

F40-44

6957

20M→21M

20.0 - 21.0 mi

Top 64%
×8story building
+106ft-24ft

Overall

18316

Females

6963

F40-44

6963

21M→35K

21.0 - 21.8 mi

Top 67%
×7story building
+17ft-86ft

Overall

18909

Females

7406

F40-44

7406

35K→23M

21.8 - 23.0 mi

Top 63%
×5story building
+23ft-63ft

Overall

17952

Females

6967

F40-44

6967

23M→24M

23.0 - 24.0 mi

Top 62%
×6story building
+12ft-82ft

Overall

17735

Females

6901

F40-44

6901

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

17125

Females

6656

F40-44

6656

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1story
+13ft-16ft

Overall

16473

Females

6334

F40-44

6334

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2story building
+22ft-21ft

Overall

17813

Females

6996

F40-44

6996

Passing Analysis

Category:
Athletes Passed
2696
Passed By
669
Net Change
+2027
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21667
5K → 10K482140+342#21667#21325
10K → 15K37573+302#21325#21023
15K → 20K28194+187#21023#20836
20K → Half4111+30#20836#20806
Half → 25K24570+175#20806#20631
25K → 30K332101+231#20631#20400
30K → 20M18625+161#20400#20239
20M → 21M15132+119#20239#20120
21M → 35K7928+51#20120#20069
35K → 23M14134+107#20069#19962
23M → 24M12319+104#19962#19858
24M → 40K1099+100#19858#19758
40K → 25.2M575+52#19758#19706
25.2M → Finish9428+66#19706#19640
TOTALS2696669+2027
📊

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