Boston Marathon logo
BOSTON MARATHON 2025

Samantha Smith

Bib: 28299•F

MA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
30:31
Rank: #25139
Start → 5K
30:31 | 9:49/mi
10K· 6.21 mi
1:01:18
Rank: #25100 (+39)
5K → 10K
30:47 | 9:54/mi
15K· 9.32 mi
1:37:02
Rank: #26099 (-999)
10K → 15K
35:44 | 11:30/mi
20K· 12.43 mi
2:14:05
Rank: #26468 (-369)
15K → 20K
37:03 | 11:56/mi
Half· 13.11 mi
2:21:31
Rank: #26460 (+8)
20K → Half
7:26 | 10:54/mi
25K· 15.53 mi
2:52:52
Rank: #26681 (-221)
Half → 25K
31:21 | 12:56/mi
30K· 18.64 mi
3:31:12
Rank: #26579 (+102)
25K → 30K
38:20 | 12:20/mi
20M
3:47:54
Rank: #26519 (+60)
30K → 20M
16:42 | 12:17/mi
21M
4:01:36
Rank: #26479 (+40)
20M → 21M
13:42 | 13:42/mi
35K· 21.75 mi
4:10:28
Rank: #26449 (+30)
21M → 35K
8:52 | 11:51/mi
23M
4:25:01
Rank: #26376 (+73)
35K → 23M
14:33 | 11:37/mi
24M
4:36:38
Rank: #26311 (+65)
23M → 24M
11:37 | 11:37/mi
40K· 24.85 mi
4:47:31
Rank: #26318 (-7)
24M → 40K
10:53 | 12:44/mi
25.2M
4:52:17
Rank: #26317 (+1)
40K → 25.2M
4:46 | 13:49/mi
Finish· 26.22 mi
5:03:22
Rank: #26293 (+24)
25.2M → Finish
11:05 | 10:53/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
Time2:21:31
Pace10:48 /mi
2nd Half
Distance13.11 mi
Time2:41:51
Pace12:21 /mi
📊Positive Split: 14.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:5630:319:4930:31
9:49
-
10K
6.21 mi12:21:431:01:189:5230:47
9:54
+0:05
15K
9.32 mi12:57:271:37:0210:2535:44
11:30
+1:36
20K
12.43 mi13:34:302:14:0510:4737:03
11:56
+0:26
Half
13.11 mi13:41:562:21:3110:487:26
10:54
-1:02
25K
15.53 mi14:13:172:52:5211:0831:21
12:56
+2:02
30K
18.64 mi14:51:373:31:1211:2038:20
12:20
-0:36
20M
20.00 mi15:08:193:47:5411:2416:42
12:17
-0:03
21M
21.00 mi15:22:014:01:3611:3013:42
13:42
+1:25
35K
21.75 mi15:30:534:10:2811:318:52
11:51
-1:51
23M
23.00 mi15:45:264:25:0111:3114:33
11:37
-0:14
24M
24.00 mi15:57:034:36:3811:3211:37
11:37
0:00
40K
24.85 mi16:07:564:47:3111:3410:53
12:44
+1:07
25.2M
25.20 mi16:12:424:52:1711:364:46
13:49
+1:05
Finish
26.22 mi16:23:475:03:2211:3511:05
10:53
-2:56

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

9:49 /mi

Average Pace

11:35 /mi

Slowest Pace

13:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:19:49

26% of race

Time at Steady Pace

2:42:51

54% of race

Time at Slower Pace

1:00:42

20% of race

Average Pace: 11:34 /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 mi11:50:5630:319:4930:31
9:49
#25139
10K
6.21 mi12:21:431:01:189:5230:47
9:54
#25100
15K
9.32 mi12:57:271:37:0210:2535:44
11:30
#26099
20K
12.43 mi13:34:302:14:0510:4737:03
11:56
#26468
Half
13.11 mi13:41:562:21:3110:487:26
10:54
#26460
25K
15.53 mi14:13:172:52:5211:0831:21
12:56
#26681
30K
18.64 mi14:51:373:31:1211:2038:20
12:20
#26579
20M
20.00 mi15:08:193:47:5411:2416:42
12:17
#26519
21M
21.00 mi15:22:014:01:3611:3013:42
13:42
#26479
35K
21.75 mi15:30:534:10:2811:318:52
11:51
#26449
23M
23.00 mi15:45:264:25:0111:3114:33
11:37
#26376
24M
24.00 mi15:57:034:36:3811:3211:37
11:37
#26311
40K
24.85 mi16:07:564:47:3111:3410:53
12:44
#26318
25.2M
25.20 mi16:12:424:52:1711:364:46
13:49
#26317
Finish
26.22 mi16:23:475:03:2211:3511:05
10:53
#26293
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25139102831028327226(Top 96%)11505(Top 94%)11505(Top 210%)
10K6.21 mi3.10 mi25100+3910279+410279+425104(Top 88%)10292(Top 84%)10292(Top 188%)
15K9.32 mi3.11 mi26099-99910834-55510834-55527226(Top 96%)11505(Top 94%)11505(Top 210%)
20K12.43 mi3.11 mi26468-36911047-21311047-21327053(Top 95%)11423(Top 93%)11423(Top 209%)
Half13.11 mi0.68 mi26460+811043+411043+426362(Top 93%)11038(Top 90%)11038(Top 202%)
25K15.53 mi2.42 mi26681-22111187-14411187-14427241(Top 96%)11568(Top 95%)11568(Top 212%)
30K18.64 mi3.11 mi26579+10211150+3711150+3725988(Top 91%)10937(Top 89%)10937(Top 200%)
20M20.00 mi1.36 mi26519+6011126+2411126+2425647(Top 90%)10825(Top 89%)10825(Top 198%)
21M21.00 mi1.00 mi26479+4011113+1311113+1325872(Top 91%)10979(Top 90%)10979(Top 201%)
35K21.75 mi0.75 mi26449+3011106+711106+725625(Top 90%)10912(Top 89%)10912(Top 200%)
23M23.00 mi1.25 mi26376+7311075+3111075+3124441(Top 86%)10318(Top 84%)10318(Top 189%)
24M24.00 mi1.00 mi26311+6511056+1911056+1925083(Top 88%)10674(Top 87%)10674(Top 195%)
40K24.85 mi0.85 mi26318-711067-1111067-1125964(Top 91%)11131(Top 91%)11131(Top 204%)
25.2M25.20 mi0.35 mi26317+111065+211065+226050(Top 92%)11208(Top 92%)11208(Top 205%)
Finish26.22 mi1.02 mi26293+2411054+1111054+1125108(Top 88%)10706(Top 88%)10706(Top 196%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 96%
×21stories
+97ft-345ft

Overall

27226

Females

11505

F18-39

11505

5K→10K

3.1 - 6.2 mi

Top 88%
×5stories
+79ft-138ft

Overall

25104

Females

10292

F18-39

10292

10K→15K

6.2 - 9.3 mi

Top 96%
×3stories
+67ft-78ft

Overall

27226

Females

11505

F18-39

11505

15K→20K

9.3 - 12.4 mi

Top 95%
×5stories
+106ft-86ft

Overall

27053

Females

11423

F18-39

11423

20K→Half

12.4 - 13.1 mi

Top 93%
×2stories
+19ft-37ft

Overall

26362

Females

11038

F18-39

11038

Half→25K

13.1 - 15.5 mi

Top 96%
×4stories
+66ft-88ft

Overall

27241

Females

11568

F18-39

11568

25K→30K

15.5 - 18.6 mi

Top 91%
×9stories
+181ft-148ft

Overall

25988

Females

10937

F18-39

10937

30K→20M

18.6 - 20.0 mi

Top 90%
×5stories
+64ft-50ft

Overall

25647

Females

10825

F18-39

10825

20M→21M

20.0 - 21.0 mi

Top 91%
×8stories
+106ft-24ft

Overall

25872

Females

10979

F18-39

10979

21M→35K

21.0 - 21.8 mi

Top 90%
×7stories
+17ft-86ft

Overall

25625

Females

10912

F18-39

10912

35K→23M

21.8 - 23.0 mi

Top 86%
×5stories
+23ft-63ft

Overall

24441

Females

10318

F18-39

10318

23M→24M

23.0 - 24.0 mi

Top 88%
×6stories
+12ft-82ft

Overall

25083

Females

10674

F18-39

10674

24M→40K

24.0 - 24.9 mi

Top 91%
×1story
+6ft-20ft

Overall

25964

Females

11131

F18-39

11131

40K→25.2M

24.9 - 25.2 mi

Top 92%
×1story
+13ft-16ft

Overall

26050

Females

11208

F18-39

11208

25.2M→Finish

25.2 - 26.2 mi

Top 88%
×2stories
+22ft-21ft

Overall

25108

Females

10706

F18-39

10706

Passing Analysis

Category:
Athletes Passed
820
Passed By
1974
Net Change
-1154
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25139
5K → 10K193154+39#25139#25100
10K → 15K61005-999#25100#26099
15K → 20K36405-369#26099#26468
20K → Half2214+8#26468#26460
Half → 25K29250-221#26460#26681
25K → 30K13533+102#26681#26579
30K → 20M7515+60#26579#26519
20M → 21M6121+40#26519#26479
21M → 35K4010+30#26479#26449
35K → 23M807+73#26449#26376
23M → 24M716+65#26376#26311
24M → 40K2330-7#26311#26318
40K → 25.2M109+1#26318#26317
25.2M → Finish3915+24#26317#26293
TOTALS8201974-1154
📊

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