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BOSTON MARATHON 2025

Andrea Cornejo Alvarez

Bib: 12817•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 36%
Gender (Female)
#0 / 12228
Top 19%
Division (F18-39)
#0 / 5469
Top 33%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:44
Rank: #10555
Start → 5K
22:44 | 7:19/mi
10K· 6.21 mi
45:45
Rank: #10900 (-345)
5K → 10K
23:01 | 7:25/mi
15K· 9.32 mi
1:08:44
Rank: #10839 (+61)
10K → 15K
22:59 | 7:24/mi
20K· 12.43 mi
1:31:55
Rank: #10736 (+103)
15K → 20K
23:11 | 7:28/mi
Half· 13.11 mi
1:36:55
Rank: #10696 (+40)
20K → Half
5:00 | 7:20/mi
25K· 15.53 mi
1:55:08
Rank: #10561 (+135)
Half → 25K
18:13 | 7:31/mi
30K· 18.64 mi
2:19:18
Rank: #10340 (+221)
25K → 30K
24:10 | 7:47/mi
20M
2:30:14
Rank: #10354 (-14)
30K → 20M
10:56 | 8:03/mi
21M
2:39:04
Rank: #10482 (-128)
20M → 21M
8:50 | 8:50/mi
35K· 21.75 mi
2:44:56
Rank: #10481 (+1)
21M → 35K
5:52 | 7:51/mi
23M
2:54:55
Rank: #10377 (+104)
35K → 23M
9:59 | 7:58/mi
24M
3:02:41
Rank: #10327 (+50)
23M → 24M
7:46 | 7:46/mi
40K· 24.85 mi
3:09:32
Rank: #10284 (+43)
24M → 40K
6:51 | 8:01/mi
25.2M
3:12:28
Rank: #10249 (+35)
40K → 25.2M
2:56 | 8:30/mi
Finish· 26.22 mi
3:20:03
Rank: #10162 (+87)
25.2M → Finish
7:35 | 7:26/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:55
Pace7:24 /mi
2nd Half
Distance13.11 mi
Time1:43:08
Pace7:52 /mi
📊Positive Split: 6.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:3122:447:1922:44
7:19
-
10K
6.21 mi11:13:3245:457:2223:01
7:25
+0:06
15K
9.32 mi11:36:311:08:447:2222:59
7:24
-0:01
20K
12.43 mi11:59:421:31:557:2423:11
7:28
+0:04
Half
13.11 mi12:04:421:36:557:245:00
7:20
-0:08
25K
15.53 mi12:22:551:55:087:2518:13
7:31
+0:11
30K
18.64 mi12:47:052:19:187:2824:10
7:47
+0:16
20M
20.00 mi12:58:012:30:147:3110:56
8:03
+0:16
21M
21.00 mi13:06:512:39:047:348:50
8:50
+0:47
35K
21.75 mi13:12:432:44:567:355:52
7:51
-0:59
23M
23.00 mi13:22:422:54:557:369:59
7:58
+0:07
24M
24.00 mi13:30:283:02:417:377:46
7:46
-0:12
40K
24.85 mi13:37:193:09:327:386:51
8:01
+0:15
25.2M
25.20 mi13:40:153:12:287:382:56
8:30
+0:29
Finish
26.22 mi13:47:503:20:037:387:35
7:26
-1:04

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

7:19 /mi

Average Pace

7:38 /mi

Slowest Pace

8:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:02:43

61% of race

Time at Steady Pace

47:47

24% of race

Time at Slower Pace

29:33

15% of race

Average Pace: 7:38 /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 mi10:50:3122:447:1922:44
7:19
#10555
10K
6.21 mi11:13:3245:457:2223:01
7:25
#10900
15K
9.32 mi11:36:311:08:447:2222:59
7:24
#10839
20K
12.43 mi11:59:421:31:557:2423:11
7:28
#10736
Half
13.11 mi12:04:421:36:557:245:00
7:20
#10696
25K
15.53 mi12:22:551:55:087:2518:13
7:31
#10561
30K
18.64 mi12:47:052:19:187:2824:10
7:47
#10340
20M
20.00 mi12:58:012:30:147:3110:56
8:03
#10354
21M
21.00 mi13:06:512:39:047:348:50
8:50
#10482
35K
21.75 mi13:12:432:44:567:355:52
7:51
#10481
23M
23.00 mi13:22:422:54:557:369:59
7:58
#10377
24M
24.00 mi13:30:283:02:417:377:46
7:46
#10327
40K
24.85 mi13:37:193:09:327:386:51
8:01
#10284
25.2M
25.20 mi13:40:153:12:287:382:56
8:30
#10249
Finish
26.22 mi13:47:503:20:037:387:35
7:26
#10162
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi105552063206310871(Top 38%)2309(Top 19%)2309(Top 42%)
10K6.21 mi3.10 mi10900-3452258-1952258-19511274(Top 40%)2453(Top 20%)2453(Top 45%)
15K9.32 mi3.11 mi10839+612244+142244+1410871(Top 38%)2309(Top 19%)2309(Top 42%)
20K12.43 mi3.11 mi10736+1032208+362208+3610451(Top 37%)2189(Top 18%)2189(Top 40%)
Half13.11 mi0.68 mi10696+402192+162192+1610341(Top 36%)2121(Top 17%)2121(Top 39%)
25K15.53 mi2.42 mi10561+1352162+302162+3010097(Top 36%)2139(Top 17%)2139(Top 39%)
30K18.64 mi3.11 mi10340+2212120+422120+429780(Top 34%)2182(Top 18%)2182(Top 40%)
20M20.00 mi1.36 mi10354-142176-562176-5610757(Top 38%)2804(Top 23%)2804(Top 51%)
21M21.00 mi1.00 mi10482-1282286-1102286-11012508(Top 44%)3855(Top 32%)3855(Top 70%)
35K21.75 mi0.75 mi10481+12299-132299-1311144(Top 39%)3170(Top 26%)3170(Top 58%)
23M23.00 mi1.25 mi10377+1042298+12298+19865(Top 35%)2669(Top 22%)2669(Top 49%)
24M24.00 mi1.00 mi10327+502302-42302-49591(Top 34%)2597(Top 21%)2597(Top 47%)
40K24.85 mi0.85 mi10284+432319-172319-1710310(Top 36%)3074(Top 25%)3074(Top 56%)
25.2M25.20 mi0.35 mi10249+352317+22317+28884(Top 31%)2468(Top 20%)2468(Top 45%)
Finish26.22 mi1.02 mi10162+872301+162301+168805(Top 31%)2443(Top 20%)2443(Top 45%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21stories
+97ft-345ft

Overall

10871

Females

2309

F18-39

2309

5K→10K

3.1 - 6.2 mi

Top 40%
×5stories
+79ft-138ft

Overall

11274

Females

2453

F18-39

2453

10K→15K

6.2 - 9.3 mi

Top 38%
×3stories
+67ft-78ft

Overall

10871

Females

2309

F18-39

2309

15K→20K

9.3 - 12.4 mi

Top 37%
×5stories
+106ft-86ft

Overall

10451

Females

2189

F18-39

2189

20K→Half

12.4 - 13.1 mi

Top 36%
×2stories
+19ft-37ft

Overall

10341

Females

2121

F18-39

2121

Half→25K

13.1 - 15.5 mi

Top 36%
×4stories
+66ft-88ft

Overall

10097

Females

2139

F18-39

2139

25K→30K

15.5 - 18.6 mi

Top 34%
×9stories
+181ft-148ft

Overall

9780

Females

2182

F18-39

2182

30K→20M

18.6 - 20.0 mi

Top 38%
×5stories
+64ft-50ft

Overall

10757

Females

2804

F18-39

2804

20M→21M

20.0 - 21.0 mi

Top 44%
×8stories
+106ft-24ft

Overall

12508

Females

3855

F18-39

3855

21M→35K

21.0 - 21.8 mi

Top 39%
×7stories
+17ft-86ft

Overall

11144

Females

3170

F18-39

3170

35K→23M

21.8 - 23.0 mi

Top 35%
×5stories
+23ft-63ft

Overall

9865

Females

2669

F18-39

2669

23M→24M

23.0 - 24.0 mi

Top 34%
×6stories
+12ft-82ft

Overall

9591

Females

2597

F18-39

2597

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

10310

Females

3074

F18-39

3074

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8884

Females

2468

F18-39

2468

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2stories
+22ft-21ft

Overall

8805

Females

2443

F18-39

2443

Passing Analysis

Category:
Athletes Passed
1924
Passed By
1530
Net Change
+393
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10555
5K → 10K128473-345#10555#10900
10K → 15K201140+61#10900#10839
15K → 20K214111+103#10839#10736
20K → Half5717+40#10736#10696
Half → 25K23095+135#10696#10561
25K → 30K324102+221#10561#10340
30K → 20M113127-14#10340#10354
20M → 21M67195-128#10354#10482
21M → 35K6059+1#10482#10481
35K → 23M15248+104#10481#10377
23M → 24M10353+50#10377#10327
24M → 40K10057+43#10327#10284
40K → 25.2M5520+35#10284#10249
25.2M → Finish12033+87#10249#10162
TOTALS19241530+393
📊

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