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BOSTON MARATHON 2025

Alejandra Rivero

Bib: 17406•F

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

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
7:54/mi
24:34
↑ 97↓ 3451.5%
10K· 6.21 mi
7:47/mi
48:44
↑ 79↓ 1380.4%
15K· 9.32 mi
7:52/mi
1:13:11
↑ 67↓ 78
20K· 12.43 mi
8:40/mi
1:40:07
↑ 106↓ 860.1%
Half· 13.11 mi
9:23/mi
1:46:31
↑ 19↓ 370.5%
25K· 15.53 mi
10:03/mi
2:10:52
↑ 66↓ 880.2%
30K· 18.64 mi
10:04/mi
2:42:07
↑ 181↓ 1480.2%
20M
9:16/mi
2:54:43
↑ 64↓ 500.2%
21M
9:38/mi
3:04:21
↑ 106↓ 241.6%
35K· 21.75 mi
8:33/mi
3:10:45
↑ 17↓ 861.7%
23M
9:17/mi
3:22:22
↑ 23↓ 630.6%
24M
9:20/mi
3:31:42
↓ 821.3%
40K· 24.85 mi
9:31/mi
3:39:50
↓ 200.3%
25.2M
10:18/mi
3:43:23
↑ 13↓ 160.2%
Finish· 26.22 mi
8:19/mi
3:51:52
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:31
Pace8:08 /mi
2nd Half
Distance13.11 mi
Time2:05:21
Pace9:34 /mi
📊Positive Split: 17.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:5024:347:5424:34
7:54
-
10K
6.21 mi11:39:0048:447:5124:10
7:47
-0:07
15K
9.32 mi12:03:271:13:117:5124:27
7:52
+0:05
20K
12.43 mi12:30:231:40:078:0326:56
8:40
+0:48
Half
13.11 mi12:36:471:46:318:086:24
9:23
+0:43
25K
15.53 mi13:01:082:10:528:2524:21
10:03
+0:40
30K
18.64 mi13:32:232:42:078:4231:15
10:04
+0:01
20M
20.00 mi13:44:592:54:438:4412:36
9:16
-0:48
21M
21.00 mi13:54:373:04:218:479:38
9:38
+0:22
35K
21.75 mi14:01:013:10:458:466:24
8:33
-1:05
23M
23.00 mi14:12:383:22:228:4811:37
9:17
+0:44
24M
24.00 mi14:21:583:31:428:499:20
9:20
+0:03
40K
24.85 mi14:30:063:39:508:518:08
9:31
+0:11
25.2M
25.20 mi14:33:393:43:238:523:33
10:18
+0:47
Finish
26.22 mi14:42:083:51:528:518:29
8:19
-1:59

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

7:47 /mi

Average Pace

8:51 /mi

Slowest Pace

10:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55:00

50% of race

Time at Steady Pace

57:43

25% of race

Time at Slower Pace

59:09

26% of race

Average Pace: 8:51 /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 mi11:14:5024:347:5424:34
7:54
#15792
10K
6.21 mi11:39:0048:447:5124:10
7:47
#15189
15K
9.32 mi12:03:271:13:117:5124:27
7:52
#15109
20K
12.43 mi12:30:231:40:078:0326:56
8:40
#16355
Half
13.11 mi12:36:471:46:318:086:24
9:23
#16867
25K
15.53 mi13:01:082:10:528:2524:21
10:03
#18437
30K
18.64 mi13:32:232:42:078:4231:15
10:04
#19315
20M
20.00 mi13:44:592:54:438:4412:36
9:16
#19209
21M
21.00 mi13:54:373:04:218:479:38
9:38
#19059
35K
21.75 mi14:01:013:10:458:466:24
8:33
#18941
23M
23.00 mi14:12:383:22:228:4811:37
9:17
#18866
24M
24.00 mi14:21:583:31:428:499:20
9:20
#18881
40K
24.85 mi14:30:063:39:508:518:08
9:31
#18866
25.2M
25.20 mi14:33:393:43:238:523:33
10:18
#18856
Finish
26.22 mi14:42:083:51:528:518:29
8:19
#18715
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi157925021502115011(Top 53%)4591(Top 38%)4591(Top 84%)
10K6.21 mi3.10 mi15189+6034657+3644657+36414641(Top 52%)4335(Top 35%)4335(Top 79%)
15K9.32 mi3.11 mi15109+804625+324625+3215011(Top 53%)4591(Top 38%)4591(Top 84%)
20K12.43 mi3.11 mi16355-12465356-7315356-73119264(Top 68%)7060(Top 58%)7060(Top 129%)
Half13.11 mi0.68 mi16867-5125657-3015657-30123204(Top 82%)9249(Top 76%)9249(Top 169%)
25K15.53 mi2.42 mi18437-15706601-9446601-94423369(Top 82%)9404(Top 77%)9404(Top 172%)
30K18.64 mi3.11 mi19315-8787140-5397140-53921760(Top 77%)8645(Top 71%)8645(Top 158%)
20M20.00 mi1.36 mi19209+1067098+427098+4218179(Top 64%)6819(Top 56%)6819(Top 125%)
21M21.00 mi1.00 mi19059+1507038+607038+6016731(Top 59%)6113(Top 50%)6113(Top 112%)
35K21.75 mi0.75 mi18941+1186992+466992+4615862(Top 56%)5719(Top 47%)5719(Top 105%)
23M23.00 mi1.25 mi18866+756977+156977+1517702(Top 62%)6844(Top 56%)6844(Top 125%)
24M24.00 mi1.00 mi18881-157006-297006-2918976(Top 67%)7531(Top 62%)7531(Top 138%)
40K24.85 mi0.85 mi18866+157029-237029-2318771(Top 66%)7509(Top 61%)7509(Top 137%)
25.2M25.20 mi0.35 mi18856+107024+57024+518303(Top 64%)7291(Top 60%)7291(Top 133%)
Finish26.22 mi1.02 mi18715+1416970+546970+5415125(Top 53%)5562(Top 45%)5562(Top 102%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21story building
+97ft-345ft

Overall

15011

Females

4591

F18-39

4591

5K→10K

3.1 - 6.2 mi

Top 52%
×5story building
+79ft-138ft

Overall

14641

Females

4335

F18-39

4335

10K→15K

6.2 - 9.3 mi

Top 53%
×3story building
+67ft-78ft

Overall

15011

Females

4591

F18-39

4591

15K→20K

9.3 - 12.4 mi

Top 68%
×5story building
+106ft-86ft

Overall

19264

Females

7060

F18-39

7060

20K→Half

12.4 - 13.1 mi

Top 82%
×2story building
+19ft-37ft

Overall

23204

Females

9249

F18-39

9249

Half→25K

13.1 - 15.5 mi

Top 82%
×4story building
+66ft-88ft

Overall

23369

Females

9404

F18-39

9404

25K→30K

15.5 - 18.6 mi

Top 77%
×9story building
+181ft-148ft

Overall

21760

Females

8645

F18-39

8645

30K→20M

18.6 - 20.0 mi

Top 64%
×5story building
+64ft-50ft

Overall

18179

Females

6819

F18-39

6819

20M→21M

20.0 - 21.0 mi

Top 59%
×8story building
+106ft-24ft

Overall

16731

Females

6113

F18-39

6113

21M→35K

21.0 - 21.8 mi

Top 56%
×7story building
+17ft-86ft

Overall

15862

Females

5719

F18-39

5719

35K→23M

21.8 - 23.0 mi

Top 62%
×5story building
+23ft-63ft

Overall

17702

Females

6844

F18-39

6844

23M→24M

23.0 - 24.0 mi

Top 67%
×6story building
+12ft-82ft

Overall

18976

Females

7531

F18-39

7531

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

18771

Females

7509

F18-39

7509

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1story
+13ft-16ft

Overall

18303

Females

7291

F18-39

7291

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2story building
+22ft-21ft

Overall

15125

Females

5562

F18-39

5562

Passing Analysis

Category:
Athletes Passed
1985
Passed By
4908
Net Change
-2923
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15792
5K → 10K704101+603#15792#15189
10K → 15K247167+80#15189#15109
15K → 20K341280-1246#15109#16355
20K → Half2514-512#16355#16867
Half → 25K141584-1570#16867#18437
25K → 30K56934-878#18437#19315
30K → 20M15953+106#19315#19209
20M → 21M17626+150#19209#19059
21M → 35K1268+118#19059#18941
35K → 23M14166+75#18941#18866
23M → 24M5873-15#18866#18881
24M → 40K7661+15#18881#18866
40K → 25.2M3525+10#18866#18856
25.2M → Finish15716+141#18856#18715
TOTALS19854908-2923
📊

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