Boston Marathon logo
BOSTON MARATHON 2025

Mariah Massey

Bib: 10834•F

NY

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
21:38
Rank: #7539
Start → 5K
21:38 | 6:58/mi
10K· 6.21 mi
43:23
Rank: #7735 (-196)
5K → 10K
21:45 | 7:00/mi
15K· 9.32 mi
1:04:58
Rank: #7570 (+165)
10K → 15K
21:35 | 6:57/mi
20K· 12.43 mi
1:26:42
Rank: #7343 (+227)
15K → 20K
21:44 | 7:00/mi
Half· 13.11 mi
1:31:23
Rank: #7299 (+44)
20K → Half
4:41 | 6:52/mi
25K· 15.53 mi
1:48:25
Rank: #7129 (+170)
Half → 25K
17:02 | 7:02/mi
30K· 18.64 mi
2:11:09
Rank: #6896 (+233)
25K → 30K
22:44 | 7:19/mi
20M
2:21:18
Rank: #6801 (+95)
30K → 20M
10:09 | 7:28/mi
21M
2:29:12
Rank: #6730 (+71)
20M → 21M
7:54 | 7:54/mi
35K· 21.75 mi
2:34:33
Rank: #6675 (+55)
21M → 35K
5:21 | 7:09/mi
23M
2:43:56
Rank: #6578 (+97)
35K → 23M
9:23 | 7:30/mi
24M
2:51:17
Rank: #6532 (+46)
23M → 24M
7:21 | 7:21/mi
40K· 24.85 mi
2:57:38
Rank: #6471 (+61)
24M → 40K
6:21 | 7:26/mi
25.2M
3:00:25
Rank: #6443 (+28)
40K → 25.2M
2:47 | 8:04/mi
Finish· 26.22 mi
3:07:25
Rank: #6336 (+107)
25.2M → Finish
7:00 | 6:52/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
Time1:31:23
Pace6:58 /mi
2nd Half
Distance13.11 mi
Time1:36:02
Pace7:20 /mi
📊Positive Split: 5.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:5321:386:5821:38
6:58
-
10K
6.21 mi11:11:3843:236:5921:45
7:00
+0:02
15K
9.32 mi11:33:131:04:586:5821:35
6:57
-0:03
20K
12.43 mi11:54:571:26:426:5921:44
7:00
+0:03
Half
13.11 mi11:59:381:31:236:584:41
6:52
-0:08
25K
15.53 mi12:16:401:48:256:5917:02
7:02
+0:10
30K
18.64 mi12:39:242:11:097:0222:44
7:19
+0:17
20M
20.00 mi12:49:332:21:187:0410:09
7:28
+0:09
21M
21.00 mi12:57:272:29:127:067:54
7:54
+0:26
35K
21.75 mi13:02:482:34:337:065:21
7:09
-0:45
23M
23.00 mi13:12:112:43:567:089:23
7:30
+0:21
24M
24.00 mi13:19:322:51:177:087:21
7:21
-0:09
40K
24.85 mi13:25:532:57:387:096:21
7:26
+0:05
25.2M
25.20 mi13:28:403:00:257:102:47
8:04
+0:38
Finish
26.22 mi13:35:403:07:257:097:00
6:52
-1:12

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

6:52 /mi

Average Pace

7:09 /mi

Slowest Pace

8:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:56:44

94% of race

Time at Steady Pace

10:41

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:09 /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 mi10:49:5321:386:5821:38
6:58
#7539
10K
6.21 mi11:11:3843:236:5921:45
7:00
#7735
15K
9.32 mi11:33:131:04:586:5821:35
6:57
#7570
20K
12.43 mi11:54:571:26:426:5921:44
7:00
#7343
Half
13.11 mi11:59:381:31:236:584:41
6:52
#7299
25K
15.53 mi12:16:401:48:256:5917:02
7:02
#7129
30K
18.64 mi12:39:242:11:097:0222:44
7:19
#6896
20M
20.00 mi12:49:332:21:187:0410:09
7:28
#6801
21M
21.00 mi12:57:272:29:127:067:54
7:54
#6730
35K
21.75 mi13:02:482:34:337:065:21
7:09
#6675
23M
23.00 mi13:12:112:43:567:089:23
7:30
#6578
24M
24.00 mi13:19:322:51:177:087:21
7:21
#6532
40K
24.85 mi13:25:532:57:387:096:21
7:26
#6471
25.2M
25.20 mi13:28:403:00:257:102:47
8:04
#6443
Finish
26.22 mi13:35:403:07:257:097:00
6:52
#6336
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi75398198197295(Top 26%)807(Top 7%)807(Top 15%)
10K6.21 mi3.10 mi7735-196902-83902-837932(Top 28%)975(Top 8%)975(Top 18%)
15K9.32 mi3.11 mi7570+165862+40862+407295(Top 26%)807(Top 7%)807(Top 15%)
20K12.43 mi3.11 mi7343+227807+55807+556859(Top 24%)743(Top 6%)743(Top 14%)
Half13.11 mi0.68 mi7299+44795+12795+126732(Top 24%)710(Top 6%)710(Top 13%)
25K15.53 mi2.42 mi7129+170764+31764+316497(Top 23%)721(Top 6%)721(Top 13%)
30K18.64 mi3.11 mi6896+233751+13751+136548(Top 23%)850(Top 7%)850(Top 16%)
20M20.00 mi1.36 mi6801+95753-2753-26820(Top 24%)1081(Top 9%)1081(Top 20%)
21M21.00 mi1.00 mi6730+71757-4757-46801(Top 24%)1216(Top 10%)1216(Top 22%)
35K21.75 mi0.75 mi6675+55759-2759-26317(Top 22%)1025(Top 8%)1025(Top 19%)
23M23.00 mi1.25 mi6578+97766-7766-76602(Top 23%)1223(Top 10%)1223(Top 22%)
24M24.00 mi1.00 mi6532+46768-2768-26737(Top 24%)1346(Top 11%)1346(Top 25%)
40K24.85 mi0.85 mi6471+61775-7775-76382(Top 22%)1281(Top 10%)1281(Top 23%)
25.2M25.20 mi0.35 mi6443+28782-7782-76362(Top 22%)1365(Top 11%)1365(Top 25%)
Finish26.22 mi1.02 mi6336+107767+15767+154925(Top 17%)845(Top 7%)845(Top 15%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21stories
+97ft-345ft

Overall

7295

Females

807

F18-39

807

5K→10K

3.1 - 6.2 mi

Top 28%
×5stories
+79ft-138ft

Overall

7932

Females

975

F18-39

975

10K→15K

6.2 - 9.3 mi

Top 26%
×3stories
+67ft-78ft

Overall

7295

Females

807

F18-39

807

15K→20K

9.3 - 12.4 mi

Top 24%
×5stories
+106ft-86ft

Overall

6859

Females

743

F18-39

743

20K→Half

12.4 - 13.1 mi

Top 24%
×2stories
+19ft-37ft

Overall

6732

Females

710

F18-39

710

Half→25K

13.1 - 15.5 mi

Top 23%
×4stories
+66ft-88ft

Overall

6497

Females

721

F18-39

721

25K→30K

15.5 - 18.6 mi

Top 23%
×9stories
+181ft-148ft

Overall

6548

Females

850

F18-39

850

30K→20M

18.6 - 20.0 mi

Top 24%
×5stories
+64ft-50ft

Overall

6820

Females

1081

F18-39

1081

20M→21M

20.0 - 21.0 mi

Top 24%
×8stories
+106ft-24ft

Overall

6801

Females

1216

F18-39

1216

21M→35K

21.0 - 21.8 mi

Top 22%
×7stories
+17ft-86ft

Overall

6317

Females

1025

F18-39

1025

35K→23M

21.8 - 23.0 mi

Top 23%
×5stories
+23ft-63ft

Overall

6602

Females

1223

F18-39

1223

23M→24M

23.0 - 24.0 mi

Top 24%
×6stories
+12ft-82ft

Overall

6737

Females

1346

F18-39

1346

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

6382

Females

1281

F18-39

1281

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

6362

Females

1365

F18-39

1365

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2stories
+22ft-21ft

Overall

4925

Females

845

F18-39

845

Passing Analysis

Category:
Athletes Passed
1942
Passed By
739
Net Change
+1203
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7539
5K → 10K127323-196#7539#7735
10K → 15K22762+165#7735#7570
15K → 20K25225+227#7570#7343
20K → Half528+44#7343#7299
Half → 25K19929+170#7299#7129
25K → 30K29764+233#7129#6896
30K → 20M13439+95#6896#6801
20M → 21M11544+71#6801#6730
21M → 35K7217+55#6730#6675
35K → 23M13538+97#6675#6578
23M → 24M8337+46#6578#6532
24M → 40K8625+61#6532#6471
40K → 25.2M4214+28#6471#6443
25.2M → Finish12114+107#6443#6336
TOTALS1942739+1203
📊

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