Boston Marathon logo
BOSTON MARATHON 2025

Laura Mcdermott

Bib: 22927•F

FL

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 44%
Division (F45-49)
#0 / 1813
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:18
Rank: #19684
Start → 5K
26:18 | 8:28/mi
10K· 6.21 mi
52:42
Rank: #19725 (-41)
5K → 10K
26:24 | 8:30/mi
15K· 9.32 mi
1:18:55
Rank: #19466 (+259)
10K → 15K
26:13 | 8:26/mi
20K· 12.43 mi
1:45:10
Rank: #19034 (+432)
15K → 20K
26:15 | 8:27/mi
Half· 13.11 mi
1:50:51
Rank: #18994 (+40)
20K → Half
5:41 | 8:20/mi
25K· 15.53 mi
2:11:41
Rank: #18774 (+220)
Half → 25K
20:50 | 8:36/mi
30K· 18.64 mi
2:39:20
Rank: #18433 (+341)
25K → 30K
27:39 | 8:54/mi
20M
2:51:46
Rank: #18361 (+72)
30K → 20M
12:26 | 9:09/mi
21M
3:01:25
Rank: #18246 (+115)
20M → 21M
9:39 | 9:39/mi
35K· 21.75 mi
3:07:52
Rank: #18163 (+83)
21M → 35K
6:27 | 8:37/mi
23M
3:19:24
Rank: #18102 (+61)
35K → 23M
11:32 | 9:13/mi
24M
3:28:19
Rank: #18024 (+78)
23M → 24M
8:55 | 8:55/mi
40K· 24.85 mi
3:36:07
Rank: #17982 (+42)
24M → 40K
7:48 | 9:07/mi
25.2M
3:39:39
Rank: #17994 (-12)
40K → 25.2M
3:32 | 10:15/mi
Finish· 26.22 mi
3:48:39
Rank: #17998 (-4)
25.2M → Finish
9:00 | 8:50/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
Time1:50:51
Pace8:27 /mi
2nd Half
Distance13.11 mi
Time1:57:48
Pace8:59 /mi
📊Positive Split: 6.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:1926:188:2826:18
8:28
-
10K
6.21 mi11:48:4352:428:2926:24
8:30
+0:02
15K
9.32 mi12:14:561:18:558:2826:13
8:26
-0:04
20K
12.43 mi12:41:111:45:108:2826:15
8:27
+0:01
Half
13.11 mi12:46:521:50:518:275:41
8:20
-0:07
25K
15.53 mi13:07:422:11:418:2920:50
8:36
+0:16
30K
18.64 mi13:35:212:39:208:3327:39
8:54
+0:18
20M
20.00 mi13:47:472:51:468:3512:26
9:09
+0:15
21M
21.00 mi13:57:263:01:258:389:39
9:39
+0:30
35K
21.75 mi14:03:533:07:528:386:27
8:37
-1:02
23M
23.00 mi14:15:253:19:248:4011:32
9:13
+0:36
24M
24.00 mi14:24:203:28:198:418:55
8:55
-0:18
40K
24.85 mi14:32:083:36:078:427:48
9:07
+0:12
25.2M
25.20 mi14:35:403:39:398:433:32
10:15
+1:08
Finish
26.22 mi14:44:403:48:398:449:00
8:50
-1:25

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

8:20 /mi

Average Pace

8:44 /mi

Slowest Pace

10:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:50:51

48% of race

Time at Steady Pace

1:12:51

32% of race

Time at Slower Pace

44:57

20% of race

Average Pace: 8:43 /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 mi11:22:1926:188:2826:18
8:28
#19684
10K
6.21 mi11:48:4352:428:2926:24
8:30
#19725
15K
9.32 mi12:14:561:18:558:2826:13
8:26
#19466
20K
12.43 mi12:41:111:45:108:2826:15
8:27
#19034
Half
13.11 mi12:46:521:50:518:275:41
8:20
#18994
25K
15.53 mi13:07:422:11:418:2920:50
8:36
#18774
30K
18.64 mi13:35:212:39:208:3327:39
8:54
#18433
20M
20.00 mi13:47:472:51:468:3512:26
9:09
#18361
21M
21.00 mi13:57:263:01:258:389:39
9:39
#18246
35K
21.75 mi14:03:533:07:528:386:27
8:37
#18163
23M
23.00 mi14:15:253:19:248:4011:32
9:13
#18102
24M
24.00 mi14:24:203:28:198:418:55
8:55
#18024
40K
24.85 mi14:32:083:36:078:427:48
9:07
#17982
25.2M
25.20 mi14:35:403:39:398:433:32
10:15
#17994
Finish
26.22 mi14:44:403:48:398:449:00
8:50
#17998
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi196847314731418965(Top 67%)6881(Top 56%)6881(Top 380%)
10K6.21 mi3.10 mi19725-417313+17313+119793(Top 70%)7355(Top 60%)7355(Top 406%)
15K9.32 mi3.11 mi19466+2597163+1507163+15018965(Top 67%)6881(Top 56%)6881(Top 380%)
20K12.43 mi3.11 mi19034+4326924+2396924+23917891(Top 63%)6285(Top 51%)6285(Top 347%)
Half13.11 mi0.68 mi18994+406903+216903+2118183(Top 64%)6433(Top 53%)6433(Top 355%)
25K15.53 mi2.42 mi18774+2206784+1196784+11917778(Top 63%)6298(Top 52%)6298(Top 347%)
30K18.64 mi3.11 mi18433+3416624+1606624+16017161(Top 60%)6113(Top 50%)6113(Top 337%)
20M20.00 mi1.36 mi18361+726615+96615+917548(Top 62%)6445(Top 53%)6445(Top 355%)
21M21.00 mi1.00 mi18246+1156579+366579+3616808(Top 59%)6157(Top 50%)6157(Top 340%)
35K21.75 mi0.75 mi18163+836547+326547+3216237(Top 57%)5922(Top 48%)5922(Top 327%)
23M23.00 mi1.25 mi18102+616553-66553-617395(Top 61%)6658(Top 54%)6658(Top 367%)
24M24.00 mi1.00 mi18024+786531+226531+2216949(Top 60%)6473(Top 53%)6473(Top 357%)
40K24.85 mi0.85 mi17982+426540-96540-916999(Top 60%)6582(Top 54%)6582(Top 363%)
25.2M25.20 mi0.35 mi17994-126552-126552-1218127(Top 64%)7202(Top 59%)7202(Top 397%)
Finish26.22 mi1.02 mi17998-46570-186570-1818223(Top 64%)7197(Top 59%)7197(Top 397%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 67%
×21stories
+97ft-345ft

Overall

18965

Females

6881

F45-49

6881

5K→10K

3.1 - 6.2 mi

Top 70%
×5stories
+79ft-138ft

Overall

19793

Females

7355

F45-49

7355

10K→15K

6.2 - 9.3 mi

Top 67%
×3stories
+67ft-78ft

Overall

18965

Females

6881

F45-49

6881

15K→20K

9.3 - 12.4 mi

Top 63%
×5stories
+106ft-86ft

Overall

17891

Females

6285

F45-49

6285

20K→Half

12.4 - 13.1 mi

Top 64%
×2stories
+19ft-37ft

Overall

18183

Females

6433

F45-49

6433

Half→25K

13.1 - 15.5 mi

Top 63%
×4stories
+66ft-88ft

Overall

17778

Females

6298

F45-49

6298

25K→30K

15.5 - 18.6 mi

Top 60%
×9stories
+181ft-148ft

Overall

17161

Females

6113

F45-49

6113

30K→20M

18.6 - 20.0 mi

Top 62%
×5stories
+64ft-50ft

Overall

17548

Females

6445

F45-49

6445

20M→21M

20.0 - 21.0 mi

Top 59%
×8stories
+106ft-24ft

Overall

16808

Females

6157

F45-49

6157

21M→35K

21.0 - 21.8 mi

Top 57%
×7stories
+17ft-86ft

Overall

16237

Females

5922

F45-49

5922

35K→23M

21.8 - 23.0 mi

Top 61%
×5stories
+23ft-63ft

Overall

17395

Females

6658

F45-49

6658

23M→24M

23.0 - 24.0 mi

Top 60%
×6stories
+12ft-82ft

Overall

16949

Females

6473

F45-49

6473

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

16999

Females

6582

F45-49

6582

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1story
+13ft-16ft

Overall

18127

Females

7202

F45-49

7202

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2stories
+22ft-21ft

Overall

18223

Females

7197

F45-49

7197

Passing Analysis

Category:
Athletes Passed
2601
Passed By
915
Net Change
+1686
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19684
5K → 10K240281-41#19684#19725
10K → 15K33576+259#19725#19466
15K → 20K46432+432#19466#19034
20K → Half5212+40#19034#18994
Half → 25K26747+220#18994#18774
25K → 30K42382+341#18774#18433
30K → 20M14169+72#18433#18361
20M → 21M15843+115#18361#18246
21M → 35K9613+83#18246#18163
35K → 23M13170+61#18163#18102
23M → 24M10628+78#18102#18024
24M → 40K9250+42#18024#17982
40K → 25.2M2638-12#17982#17994
25.2M → Finish7074-4#17994#17998
TOTALS2601915+1686
📊

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