Boston Marathon logo
BOSTON MARATHON 2025

Natalia Suárez

Bib: 12436•F

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 42%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:40
Rank: #10348
Start → 5K
22:40 | 7:18/mi
10K· 6.21 mi
45:03
Rank: #9895 (+453)
5K → 10K
22:23 | 7:12/mi
15K· 9.32 mi
1:07:27
Rank: #9637 (+258)
10K → 15K
22:24 | 7:13/mi
20K· 12.43 mi
1:30:28
Rank: #9695 (-58)
15K → 20K
23:01 | 7:25/mi
Half· 13.11 mi
1:35:26
Rank: #9700 (-5)
20K → Half
4:58 | 7:17/mi
25K· 15.53 mi
1:55:19
Rank: #10648 (-948)
Half → 25K
19:53 | 8:12/mi
30K· 18.64 mi
2:20:37
Rank: #10978 (-330)
25K → 30K
25:18 | 8:09/mi
20M
2:31:42
Rank: #10964 (+14)
30K → 20M
11:05 | 8:09/mi
21M
2:40:32
Rank: #11030 (-66)
20M → 21M
8:50 | 8:50/mi
35K· 21.75 mi
2:46:22
Rank: #10988 (+42)
21M → 35K
5:50 | 7:48/mi
23M
2:56:39
Rank: #10987 (+1)
35K → 23M
10:17 | 8:13/mi
24M
3:05:33
Rank: #11258 (-271)
23M → 24M
8:54 | 8:54/mi
40K· 24.85 mi
3:12:49
Rank: #11323 (-65)
24M → 40K
7:16 | 8:30/mi
25.2M
3:16:15
Rank: #11437 (-114)
40K → 25.2M
3:26 | 9:57/mi
Finish· 26.22 mi
3:24:31
Rank: #11510 (-73)
25.2M → Finish
8:16 | 8:07/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
Time1:35:26
Pace7:17 /mi
2nd Half
Distance13.11 mi
Time1:49:05
Pace8:19 /mi
📊Positive Split: 14.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:2622:407:1822:40
7:18
-
10K
6.21 mi11:14:4945:037:1522:23
7:12
-0:06
15K
9.32 mi11:37:131:07:277:1422:24
7:13
+0:01
20K
12.43 mi12:00:141:30:287:1723:01
7:25
+0:12
Half
13.11 mi12:05:121:35:267:174:58
7:17
-0:08
25K
15.53 mi12:25:051:55:197:2519:53
8:12
+0:55
30K
18.64 mi12:50:232:20:377:3325:18
8:09
-0:03
20M
20.00 mi13:01:282:31:427:3511:05
8:09
0:00
21M
21.00 mi13:10:182:40:327:398:50
8:50
+0:41
35K
21.75 mi13:16:082:46:227:395:50
7:48
-1:02
23M
23.00 mi13:26:252:56:397:4110:17
8:13
+0:25
24M
24.00 mi13:35:193:05:337:448:54
8:54
+0:41
40K
24.85 mi13:42:353:12:497:457:16
8:30
-0:24
25.2M
25.20 mi13:46:013:16:157:473:26
9:57
+1:27
Finish
26.22 mi13:54:173:24:317:488:16
8:07
-1:50

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

7:12 /mi

Average Pace

7:48 /mi

Slowest Pace

9:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:35:26

47% of race

Time at Steady Pace

1:27:55

43% of race

Time at Slower Pace

21:10

10% of race

Average Pace: 7:48 /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 mi10:52:2622:407:1822:40
7:18
#10348
10K
6.21 mi11:14:4945:037:1522:23
7:12
#9895
15K
9.32 mi11:37:131:07:277:1422:24
7:13
#9637
20K
12.43 mi12:00:141:30:287:1723:01
7:25
#9695
Half
13.11 mi12:05:121:35:267:174:58
7:17
#9700
25K
15.53 mi12:25:051:55:197:2519:53
8:12
#10648
30K
18.64 mi12:50:232:20:377:3325:18
8:09
#10978
20M
20.00 mi13:01:282:31:427:3511:05
8:09
#10964
21M
21.00 mi13:10:182:40:327:398:50
8:50
#11030
35K
21.75 mi13:16:082:46:227:395:50
7:48
#10988
23M
23.00 mi13:26:252:56:397:4110:17
8:13
#10987
24M
24.00 mi13:35:193:05:337:448:54
8:54
#11258
40K
24.85 mi13:42:353:12:497:457:16
8:30
#11323
25.2M
25.20 mi13:46:013:16:157:473:26
9:57
#11437
Finish
26.22 mi13:54:173:24:317:488:16
8:07
#11510
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi10348196719679238(Top 33%)1537(Top 13%)1537(Top 28%)
10K6.21 mi3.10 mi9895+4531758+2091758+2099548(Top 34%)1624(Top 13%)1624(Top 30%)
15K9.32 mi3.11 mi9637+2581666+921666+929238(Top 33%)1537(Top 13%)1537(Top 28%)
20K12.43 mi3.11 mi9695-581733-671733-679986(Top 35%)1959(Top 16%)1959(Top 36%)
Half13.11 mi0.68 mi9700-5173317339924(Top 35%)1940(Top 16%)1940(Top 35%)
25K15.53 mi2.42 mi10648-9482204-4712204-47115318(Top 54%)4903(Top 40%)4903(Top 90%)
30K18.64 mi3.11 mi10978-3302460-2562460-25612395(Top 44%)3497(Top 29%)3497(Top 64%)
20M20.00 mi1.36 mi10964+142492-322492-3211524(Top 41%)3193(Top 26%)3193(Top 58%)
21M21.00 mi1.00 mi11030-662558-662558-6612517(Top 44%)3864(Top 32%)3864(Top 71%)
35K21.75 mi0.75 mi10988+422568-102568-1010849(Top 38%)3032(Top 25%)3032(Top 55%)
23M23.00 mi1.25 mi10987+12611-432611-4311448(Top 40%)3451(Top 28%)3451(Top 63%)
24M24.00 mi1.00 mi11258-2712796-1852796-18516851(Top 59%)6405(Top 52%)6405(Top 117%)
40K24.85 mi0.85 mi11323-652863-672863-6713430(Top 47%)4657(Top 38%)4657(Top 85%)
25.2M25.20 mi0.35 mi11437-1142938-752938-7516823(Top 59%)6477(Top 53%)6477(Top 118%)
Finish26.22 mi1.02 mi11510-733013-753013-7513681(Top 48%)4779(Top 39%)4779(Top 87%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21stories
+97ft-345ft

Overall

9238

Females

1537

F18-39

1537

5K→10K

3.1 - 6.2 mi

Top 34%
×5stories
+79ft-138ft

Overall

9548

Females

1624

F18-39

1624

10K→15K

6.2 - 9.3 mi

Top 33%
×3stories
+67ft-78ft

Overall

9238

Females

1537

F18-39

1537

15K→20K

9.3 - 12.4 mi

Top 35%
×5stories
+106ft-86ft

Overall

9986

Females

1959

F18-39

1959

20K→Half

12.4 - 13.1 mi

Top 35%
×2stories
+19ft-37ft

Overall

9924

Females

1940

F18-39

1940

Half→25K

13.1 - 15.5 mi

Top 54%
×4stories
+66ft-88ft

Overall

15318

Females

4903

F18-39

4903

25K→30K

15.5 - 18.6 mi

Top 44%
×9stories
+181ft-148ft

Overall

12395

Females

3497

F18-39

3497

30K→20M

18.6 - 20.0 mi

Top 41%
×5stories
+64ft-50ft

Overall

11524

Females

3193

F18-39

3193

20M→21M

20.0 - 21.0 mi

Top 44%
×8stories
+106ft-24ft

Overall

12517

Females

3864

F18-39

3864

21M→35K

21.0 - 21.8 mi

Top 38%
×7stories
+17ft-86ft

Overall

10849

Females

3032

F18-39

3032

35K→23M

21.8 - 23.0 mi

Top 40%
×5stories
+23ft-63ft

Overall

11448

Females

3451

F18-39

3451

23M→24M

23.0 - 24.0 mi

Top 59%
×6stories
+12ft-82ft

Overall

16851

Females

6405

F18-39

6405

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

13430

Females

4657

F18-39

4657

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

16823

Females

6477

F18-39

6477

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2stories
+22ft-21ft

Overall

13681

Females

4779

F18-39

4779

Passing Analysis

Category:
Athletes Passed
1772*
Passed By
2932
Net Change
-1162
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10348
5K → 10K537*84+453#10348#9895
10K → 15K32264+258#9895#9637
15K → 20K161219-58#9637#9695
20K → Half3237-5#9695#9700
Half → 25K37983-948#9700#10648
25K → 30K145475-330#10648#10978
30K → 20M122108+14#10978#10964
20M → 21M76142-66#10964#11030
21M → 35K7634+42#11030#10988
35K → 23M109108+1#10988#10987
23M → 24M33304-271#10987#11258
24M → 40K50115-65#11258#11323
40K → 25.2M17131-114#11323#11437
25.2M → Finish55128-73#11437#11510
TOTALS1772*2932-1162

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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