Boston Marathon logo
BOSTON MARATHON 2025

Ana Sofía González Montemayor

Bib: 15230•F

MN

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 41%
Gender (Female)
#0 / 12228
Top 25%
Division (F18-39)
#0 / 5469
Top 43%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:47
Rank: #13575
Start → 5K
23:47 | 7:39/mi
10K· 6.21 mi
47:46
Rank: #13818 (-243)
5K → 10K
23:59 | 7:43/mi
15K· 9.32 mi
1:11:37
Rank: #13606 (+212)
10K → 15K
23:51 | 7:41/mi
20K· 12.43 mi
1:36:09
Rank: #13688 (-82)
15K → 20K
24:32 | 7:54/mi
Half· 13.11 mi
1:41:23
Rank: #13659 (+29)
20K → Half
5:14 | 7:40/mi
25K· 15.53 mi
2:00:24
Rank: #13439 (+220)
Half → 25K
19:01 | 7:51/mi
30K· 18.64 mi
2:25:30
Rank: #13136 (+303)
25K → 30K
25:06 | 8:05/mi
20M
2:36:27
Rank: #12924 (+212)
30K → 20M
10:57 | 8:03/mi
21M
2:44:56
Rank: #12722 (+202)
20M → 21M
8:29 | 8:29/mi
35K· 21.75 mi
2:50:34
Rank: #12559 (+163)
21M → 35K
5:38 | 7:32/mi
23M
3:00:29
Rank: #12330 (+229)
35K → 23M
9:55 | 7:55/mi
24M
3:08:13
Rank: #12187 (+143)
23M → 24M
7:44 | 7:44/mi
40K· 24.85 mi
3:14:38
Rank: #11947 (+240)
24M → 40K
6:25 | 7:30/mi
25.2M
3:17:30
Rank: #11868 (+79)
40K → 25.2M
2:52 | 8:19/mi
Finish· 26.22 mi
3:24:56
Rank: #11663 (+205)
25.2M → Finish
7:26 | 7:18/mi

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
Time1:41:23
Pace7:44 /mi
2nd Half
Distance13.11 mi
Time1:43:33
Pace7:54 /mi
📊Positive Split: 2.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:5123:477:3923:47
7:39
-
10K
6.21 mi11:20:5047:467:4123:59
7:43
+0:04
15K
9.32 mi11:44:411:11:377:4123:51
7:41
-0:02
20K
12.43 mi12:09:131:36:097:4424:32
7:54
+0:13
Half
13.11 mi12:14:271:41:237:445:14
7:40
-0:14
25K
15.53 mi12:33:282:00:247:4519:01
7:51
+0:11
30K
18.64 mi12:58:342:25:307:4825:06
8:05
+0:14
20M
20.00 mi13:09:312:36:277:4910:57
8:03
-0:02
21M
21.00 mi13:18:002:44:567:518:29
8:29
+0:26
35K
21.75 mi13:23:382:50:347:515:38
7:32
-0:57
23M
23.00 mi13:33:333:00:297:519:55
7:55
+0:23
24M
24.00 mi13:41:173:08:137:517:44
7:44
-0:11
40K
24.85 mi13:47:423:14:387:506:25
7:30
-0:14
25.2M
25.20 mi13:50:343:17:307:502:52
8:19
+0:49
Finish
26.22 mi13:58:003:24:567:497:26
7:18
-1:01

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

7:18 /mi

Average Pace

7:49 /mi

Slowest Pace

8:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:37:32

77% of race

Time at Steady Pace

47:24

23% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:49 /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 mi10:56:5123:477:3923:47
7:39
#13575
10K
6.21 mi11:20:5047:467:4123:59
7:43
#13818
15K
9.32 mi11:44:411:11:377:4123:51
7:41
#13606
20K
12.43 mi12:09:131:36:097:4424:32
7:54
#13688
Half
13.11 mi12:14:271:41:237:445:14
7:40
#13659
25K
15.53 mi12:33:282:00:247:4519:01
7:51
#13439
30K
18.64 mi12:58:342:25:307:4825:06
8:05
#13136
20M
20.00 mi13:09:312:36:277:4910:57
8:03
#12924
21M
21.00 mi13:18:002:44:567:518:29
8:29
#12722
35K
21.75 mi13:23:382:50:347:515:38
7:32
#12559
23M
23.00 mi13:33:333:00:297:519:55
7:55
#12330
24M
24.00 mi13:41:173:08:137:517:44
7:44
#12187
40K
24.85 mi13:47:423:14:387:506:25
7:30
#11947
25.2M
25.20 mi13:50:343:17:307:502:52
8:19
#11868
Finish
26.22 mi13:58:003:24:567:497:26
7:18
#11663
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi135753639363913264(Top 47%)3590(Top 29%)3590(Top 66%)
10K6.21 mi3.10 mi13818-2433833-1943833-19414076(Top 50%)3997(Top 33%)3997(Top 73%)
15K9.32 mi3.11 mi13606+2123747+863747+8613264(Top 47%)3590(Top 29%)3590(Top 66%)
20K12.43 mi3.11 mi13688-823834-873834-8714059(Top 49%)4119(Top 34%)4119(Top 75%)
Half13.11 mi0.68 mi13659+293822+123822+1213190(Top 46%)3590(Top 29%)3590(Top 66%)
25K15.53 mi2.42 mi13439+2203732+903732+9012693(Top 45%)3490(Top 29%)3490(Top 64%)
30K18.64 mi3.11 mi13136+3033631+1013631+10111950(Top 42%)3265(Top 27%)3265(Top 60%)
20M20.00 mi1.36 mi12924+2123541+903541+9010845(Top 38%)2861(Top 23%)2861(Top 52%)
21M21.00 mi1.00 mi12722+2023457+843457+8410369(Top 37%)2799(Top 23%)2799(Top 51%)
35K21.75 mi0.75 mi12559+1633395+623395+628911(Top 31%)2105(Top 17%)2105(Top 38%)
23M23.00 mi1.25 mi12330+2293312+833312+839472(Top 33%)2492(Top 20%)2492(Top 46%)
24M24.00 mi1.00 mi12187+1433270+423270+429386(Top 33%)2519(Top 21%)2519(Top 46%)
40K24.85 mi0.85 mi11947+2403187+833187+836876(Top 24%)1516(Top 12%)1516(Top 28%)
25.2M25.20 mi0.35 mi11868+793157+303157+307809(Top 27%)1998(Top 16%)1998(Top 37%)
Finish26.22 mi1.02 mi11663+2053089+683089+687784(Top 27%)1982(Top 16%)1982(Top 36%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21stories
+97ft-345ft

Overall

13264

Females

3590

F18-39

3590

5K→10K

3.1 - 6.2 mi

Top 50%
×5stories
+79ft-138ft

Overall

14076

Females

3997

F18-39

3997

10K→15K

6.2 - 9.3 mi

Top 47%
×3stories
+67ft-78ft

Overall

13264

Females

3590

F18-39

3590

15K→20K

9.3 - 12.4 mi

Top 49%
×5stories
+106ft-86ft

Overall

14059

Females

4119

F18-39

4119

20K→Half

12.4 - 13.1 mi

Top 46%
×2stories
+19ft-37ft

Overall

13190

Females

3590

F18-39

3590

Half→25K

13.1 - 15.5 mi

Top 45%
×4stories
+66ft-88ft

Overall

12693

Females

3490

F18-39

3490

25K→30K

15.5 - 18.6 mi

Top 42%
×9stories
+181ft-148ft

Overall

11950

Females

3265

F18-39

3265

30K→20M

18.6 - 20.0 mi

Top 38%
×5stories
+64ft-50ft

Overall

10845

Females

2861

F18-39

2861

20M→21M

20.0 - 21.0 mi

Top 37%
×8stories
+106ft-24ft

Overall

10369

Females

2799

F18-39

2799

21M→35K

21.0 - 21.8 mi

Top 31%
×7stories
+17ft-86ft

Overall

8911

Females

2105

F18-39

2105

35K→23M

21.8 - 23.0 mi

Top 33%
×5stories
+23ft-63ft

Overall

9472

Females

2492

F18-39

2492

23M→24M

23.0 - 24.0 mi

Top 33%
×6stories
+12ft-82ft

Overall

9386

Females

2519

F18-39

2519

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6876

Females

1516

F18-39

1516

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7809

Females

1998

F18-39

1998

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2stories
+22ft-21ft

Overall

7784

Females

1982

F18-39

1982

Passing Analysis

Category:
Athletes Passed
2963
Passed By
1051
Net Change
+1912
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13575
5K → 10K189432-243#13575#13818
10K → 15K325113+212#13818#13606
15K → 20K165247-82#13606#13688
20K → Half5021+29#13688#13659
Half → 25K27252+220#13659#13439
25K → 30K412109+303#13439#13136
30K → 20M23321+212#13136#12924
20M → 21M21715+202#12924#12722
21M → 35K1641+163#12722#12559
35K → 23M23910+229#12559#12330
23M → 24M16118+143#12330#12187
24M → 40K2422+240#12187#11947
40K → 25.2M834+79#11947#11868
25.2M → Finish2116+205#11868#11663
TOTALS29631051+1912
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

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