Boston Marathon logo
BOSTON MARATHON 2025

Mariana Maruri Cortes

Bib: 11746•F

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 22%
Gender (Female)
#0 / 12228
Top 6%
Division (F18-39)
#0 / 5469
Top 12%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:31
Rank: #7244
Start → 5K
6:55/mi
21:31 split
10K· 6.21 mi
43:01
Rank: #7327 (-83)
5K → 10K
6:55/mi
21:31 split
15K· 9.32 mi
1:04:16
Rank: #7036 (+291)
10K → 15K
6:50/mi
21:15 split
20K· 12.43 mi
1:25:43
Rank: #6799 (+237)
15K → 20K
6:54/mi
21:27 split
Half· 13.11 mi
1:30:36
Rank: #6914 (-115)
20K → Half
7:10/mi
4:53 split
25K· 15.53 mi
1:47:59
Rank: #6935 (-21)
Half → 25K
7:10/mi
17:22 split
30K· 18.64 mi
2:10:15
Rank: #6574 (+361)
25K → 30K
7:10/mi
22:16 split
20M
2:19:59
Rank: #6384 (+190)
30K → 20M
7:10/mi
9:44 split
21M
2:27:52
Rank: #6331 (+53)
20M → 21M
7:53/mi
7:53 split
35K· 21.75 mi
2:33:21
Rank: #6324 (+7)
21M → 35K
7:20/mi
5:29 split
23M
2:42:32
Rank: #6222 (+102)
35K → 23M
7:20/mi
9:11 split
24M
2:49:50
Rank: #6173 (+49)
23M → 24M
7:18/mi
7:18 split
40K· 24.85 mi
2:56:25
Rank: #6186 (-13)
24M → 40K
7:42/mi
6:35 split
25.2M
2:59:16
Rank: #6171 (+15)
40K → 25.2M
8:16/mi
2:51 split
Finish· 26.22 mi
3:06:50
Rank: #6203 (-32)
25.2M → Finish
7:26/mi
7:34 split

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:36
Pace6:55 /mi
2nd Half
Distance13.11 mi
Time1:36:14
Pace7:20 /mi
📊Positive Split: 6.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:2221:316:5521:31
6:55
-
10K
6.21 mi11:09:5243:016:5521:31
6:55
0:00
15K
9.32 mi11:31:071:04:166:5421:15
6:50
-0:05
20K
12.43 mi11:52:341:25:436:5421:27
6:54
+0:04
Half
13.11 mi11:57:271:30:366:554:53
7:10
+0:16
25K
15.53 mi12:14:501:47:596:5717:22
7:10
0:00
30K
18.64 mi12:37:062:10:156:5922:16
7:10
0:00
20M
20.00 mi12:46:502:19:597:009:44
7:10
0:00
21M
21.00 mi12:54:432:27:527:027:53
7:53
+0:43
35K
21.75 mi13:00:122:33:217:035:29
7:20
-0:33
23M
23.00 mi13:09:232:42:327:049:11
7:20
0:00
24M
24.00 mi13:16:412:49:507:057:18
7:18
-0:02
40K
24.85 mi13:23:162:56:257:066:35
7:42
+0:24
25.2M
25.20 mi13:26:072:59:167:072:51
8:16
+0:34
Finish
26.22 mi13:33:413:06:507:087:34
7:26
-0:50

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

6:50 /mi

Average Pace

7:08 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:25:43

46% of race

Time at Steady Pace

1:16:14

41% of race

Time at Slower Pace

24:53

13% of race

Average Pace: 7:08 /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 mi10:48:2221:316:5521:31
6:55
#7244
10K
6.21 mi11:09:5243:016:5521:31
6:55
#7327
15K
9.32 mi11:31:071:04:166:5421:15
6:50
#7036
20K
12.43 mi11:52:341:25:436:5421:27
6:54
#6799
Half
13.11 mi11:57:271:30:366:554:53
7:10
#6914
25K
15.53 mi12:14:501:47:596:5717:22
7:10
#6935
30K
18.64 mi12:37:062:10:156:5922:16
7:10
#6574
20M
20.00 mi12:46:502:19:597:009:44
7:10
#6384
21M
21.00 mi12:54:432:27:527:027:53
7:53
#6331
35K
21.75 mi13:00:122:33:217:035:29
7:20
#6324
23M
23.00 mi13:09:232:42:327:049:11
7:20
#6222
24M
24.00 mi13:16:412:49:507:057:18
7:18
#6173
40K
24.85 mi13:23:162:56:257:066:35
7:42
#6186
25.2M
25.20 mi13:26:072:59:167:072:51
8:16
#6171
Finish
26.22 mi13:33:413:06:507:087:34
7:26
#6203
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi72447537536497(Top 23%)621(Top 5%)621(Top 11%)
10K6.21 mi3.10 mi7327-83777-24777-247419(Top 26%)823(Top 7%)823(Top 15%)
15K9.32 mi3.11 mi7036+291709+68709+686497(Top 23%)621(Top 5%)621(Top 11%)
20K12.43 mi3.11 mi6799+237657+52657+526246(Top 22%)611(Top 5%)611(Top 11%)
Half13.11 mi0.68 mi6914-115690-33690-338838(Top 31%)1450(Top 12%)1450(Top 27%)
25K15.53 mi2.42 mi6935-21713-23713-237373(Top 26%)994(Top 8%)994(Top 18%)
30K18.64 mi3.11 mi6574+361668+45668+455691(Top 20%)596(Top 5%)596(Top 11%)
20M20.00 mi1.36 mi6384+190643+25643+255031(Top 18%)520(Top 4%)520(Top 10%)
21M21.00 mi1.00 mi6331+53649-6649-66709(Top 24%)1178(Top 10%)1178(Top 22%)
35K21.75 mi0.75 mi6324+7662-13662-137481(Top 26%)1503(Top 12%)1503(Top 27%)
23M23.00 mi1.25 mi6222+102664-2664-25608(Top 20%)861(Top 7%)861(Top 16%)
24M24.00 mi1.00 mi6173+49666-2666-26438(Top 23%)1235(Top 10%)1235(Top 23%)
40K24.85 mi0.85 mi6186-13689-23689-238091(Top 28%)2018(Top 17%)2018(Top 37%)
25.2M25.20 mi0.35 mi6171+15694-5694-57478(Top 26%)1818(Top 15%)1818(Top 33%)
Finish26.22 mi1.02 mi6203-32730-36730-368680(Top 31%)2371(Top 19%)2371(Top 43%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
×21story building
+97ft-345ft

Overall

6497

Females

621

F18-39

621

5K→10K

3.1 - 6.2 mi

Top 26%
×5story building
+79ft-138ft

Overall

7419

Females

823

F18-39

823

10K→15K

6.2 - 9.3 mi

Top 23%
×3story building
+67ft-78ft

Overall

6497

Females

621

F18-39

621

15K→20K

9.3 - 12.4 mi

Top 22%
×5story building
+106ft-86ft

Overall

6246

Females

611

F18-39

611

20K→Half

12.4 - 13.1 mi

Top 31%
×2story building
+19ft-37ft

Overall

8838

Females

1450

F18-39

1450

Half→25K

13.1 - 15.5 mi

Top 26%
×4story building
+66ft-88ft

Overall

7373

Females

994

F18-39

994

25K→30K

15.5 - 18.6 mi

Top 20%
×9story building
+181ft-148ft

Overall

5691

Females

596

F18-39

596

30K→20M

18.6 - 20.0 mi

Top 18%
×5story building
+64ft-50ft

Overall

5031

Females

520

F18-39

520

20M→21M

20.0 - 21.0 mi

Top 24%
×8story building
+106ft-24ft

Overall

6709

Females

1178

F18-39

1178

21M→35K

21.0 - 21.8 mi

Top 26%
×7story building
+17ft-86ft

Overall

7481

Females

1503

F18-39

1503

35K→23M

21.8 - 23.0 mi

Top 20%
×5story building
+23ft-63ft

Overall

5608

Females

861

F18-39

861

23M→24M

23.0 - 24.0 mi

Top 23%
×6story building
+12ft-82ft

Overall

6438

Females

1235

F18-39

1235

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

8091

Females

2018

F18-39

2018

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7478

Females

1818

F18-39

1818

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2story building
+22ft-21ft

Overall

8680

Females

2371

F18-39

2371

Passing Analysis

Category:
Athletes Passed
1957
Passed By
916
Net Change
+1041
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7244
5K → 10K166249-83#7244#7327
10K → 15K32332+291#7327#7036
15K → 20K27235+237#7036#6799
20K → Half7122-115#6799#6914
Half → 25K110131-21#6914#6935
25K → 30K39938+361#6935#6574
30K → 20M1988+190#6574#6384
20M → 21M8633+53#6384#6331
21M → 35K4639+7#6331#6324
35K → 23M12523+102#6324#6222
23M → 24M8839+49#6222#6173
24M → 40K4760-13#6173#6186
40K → 25.2M3823+15#6186#6171
25.2M → Finish5284-32#6171#6203
TOTALS1957916+1041
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing