Boston Marathon logo
BOSTON MARATHON 2025

Samantha Green

Bib: 7548•F

BC

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 42%
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
20:34
Rank: #4792
Start → 5K
20:34 | 6:37/mi
10K· 6.21 mi
41:35
Rank: #5305 (-513)
5K → 10K
21:01 | 6:46/mi
15K· 9.32 mi
1:03:19
Rank: #6138 (-833)
10K → 15K
21:44 | 7:00/mi
20K· 12.43 mi
1:26:33
Rank: #7266 (-1128)
15K → 20K
23:14 | 7:29/mi
Half· 13.11 mi
1:31:40
Rank: #7450 (-184)
20K → Half
5:07 | 7:30/mi
25K· 15.53 mi
1:51:05
Rank: #8302 (-852)
Half → 25K
19:25 | 8:00/mi
30K· 18.64 mi
2:18:41
Rank: #10053 (-1751)
25K → 30K
27:36 | 8:53/mi
20M
2:35:30
Rank: #12518 (-2465)
30K → 20M
16:49 | 12:22/mi
21M
2:48:51
Rank: #14192 (-1674)
20M → 21M
13:21 | 13:21/mi
35K· 21.75 mi
2:58:49
Rank: #15482 (-1290)
21M → 35K
9:58 | 13:19/mi
23M
3:11:45
Rank: #15935 (-453)
35K → 23M
12:56 | 10:20/mi
24M
3:20:11
Rank: #15839 (+96)
23M → 24M
8:26 | 8:26/mi
40K· 24.85 mi
3:27:18
Rank: #15683 (+156)
24M → 40K
7:07 | 8:19/mi
25.2M
3:30:28
Rank: #15628 (+55)
40K → 25.2M
3:10 | 9:11/mi
Finish· 26.22 mi
3:38:46
Rank: #15559 (+69)
25.2M → Finish
8:18 | 8:09/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
Time1:31:40
Pace7:00 /mi
2nd Half
Distance13.11 mi
Time2:07:06
Pace9:42 /mi
📊Positive Split: 38.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:1820:346:3720:34
6:37
-
10K
6.21 mi10:48:1941:356:4221:01
6:46
+0:09
15K
9.32 mi11:10:031:03:196:4821:44
7:00
+0:14
20K
12.43 mi11:33:171:26:336:5823:14
7:29
+0:29
Half
13.11 mi11:38:241:31:407:005:07
7:30
+0:01
25K
15.53 mi11:57:491:51:057:0919:25
8:00
+0:30
30K
18.64 mi12:25:252:18:417:2627:36
8:53
+0:53
20M
20.00 mi12:42:142:35:307:4616:49
12:22
+3:29
21M
21.00 mi12:55:352:48:518:0213:21
13:21
+0:59
35K
21.75 mi13:05:332:58:498:139:58
13:19
-0:02
23M
23.00 mi13:18:293:11:458:2012:56
10:20
-2:59
24M
24.00 mi13:26:553:20:118:208:26
8:26
-1:54
40K
24.85 mi13:34:023:27:188:207:07
8:19
-0:07
25.2M
25.20 mi13:37:123:30:288:213:10
9:11
+0:52
Finish
26.22 mi13:45:303:38:468:218:18
8:09
-1:02

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

6:37 /mi

Average Pace

8:21 /mi

Slowest Pace

13:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:03:19

29% of race

Time at Steady Pace

1:42:23

47% of race

Time at Slower Pace

53:04

24% of race

Average Pace: 8:21 /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 mi10:27:1820:346:3720:34
6:37
#4792
10K
6.21 mi10:48:1941:356:4221:01
6:46
#5305
15K
9.32 mi11:10:031:03:196:4821:44
7:00
#6138
20K
12.43 mi11:33:171:26:336:5823:14
7:29
#7266
Half
13.11 mi11:38:241:31:407:005:07
7:30
#7450
25K
15.53 mi11:57:491:51:057:0919:25
8:00
#8302
30K
18.64 mi12:25:252:18:417:2627:36
8:53
#10053
20M
20.00 mi12:42:142:35:307:4616:49
12:22
#12518
21M
21.00 mi12:55:352:48:518:0213:21
13:21
#14192
35K
21.75 mi13:05:332:58:498:139:58
13:19
#15482
23M
23.00 mi13:18:293:11:458:2012:56
10:20
#15935
24M
24.00 mi13:26:553:20:118:208:26
8:26
#15839
40K
24.85 mi13:34:023:27:188:207:07
8:19
#15683
25.2M
25.20 mi13:37:123:30:288:213:10
9:11
#15628
Finish
26.22 mi13:45:303:38:468:218:18
8:09
#15559
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi47922992997620(Top 27%)907(Top 7%)907(Top 17%)
10K6.21 mi3.10 mi5305-513377-78377-786026(Top 21%)510(Top 4%)510(Top 9%)
15K9.32 mi3.11 mi6138-833510-133510-1337620(Top 27%)907(Top 7%)907(Top 17%)
20K12.43 mi3.11 mi7266-1128788-278788-27810595(Top 37%)2263(Top 19%)2263(Top 41%)
Half13.11 mi0.68 mi7450-184838-50838-5011814(Top 42%)2853(Top 23%)2853(Top 52%)
25K15.53 mi2.42 mi8302-8521167-3291167-32913980(Top 49%)4202(Top 34%)4202(Top 77%)
30K18.64 mi3.11 mi10053-17511980-8131980-81317068(Top 60%)6059(Top 50%)6059(Top 111%)
20M20.00 mi1.36 mi12518-24653320-13403320-134025770(Top 91%)10887(Top 89%)10887(Top 199%)
21M21.00 mi1.00 mi14192-16744268-9484268-94825513(Top 90%)10810(Top 88%)10810(Top 198%)
35K21.75 mi0.75 mi15482-12905016-7485016-74827242(Top 96%)11714(Top 96%)11714(Top 214%)
23M23.00 mi1.25 mi15935-4535332-3165332-31621522(Top 76%)8828(Top 72%)8828(Top 161%)
24M24.00 mi1.00 mi15839+965289+435289+4314128(Top 50%)4894(Top 40%)4894(Top 89%)
40K24.85 mi0.85 mi15683+1565219+705219+7012345(Top 43%)4114(Top 34%)4114(Top 75%)
25.2M25.20 mi0.35 mi15628+555206+135206+1312908(Top 45%)4466(Top 37%)4466(Top 82%)
Finish26.22 mi1.02 mi15559+695187+195187+1913932(Top 49%)4922(Top 40%)4922(Top 90%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21stories
+97ft-345ft

Overall

7620

Females

907

F18-39

907

5K→10K

3.1 - 6.2 mi

Top 21%
×5stories
+79ft-138ft

Overall

6026

Females

510

F18-39

510

10K→15K

6.2 - 9.3 mi

Top 27%
×3stories
+67ft-78ft

Overall

7620

Females

907

F18-39

907

15K→20K

9.3 - 12.4 mi

Top 37%
×5stories
+106ft-86ft

Overall

10595

Females

2263

F18-39

2263

20K→Half

12.4 - 13.1 mi

Top 42%
×2stories
+19ft-37ft

Overall

11814

Females

2853

F18-39

2853

Half→25K

13.1 - 15.5 mi

Top 49%
×4stories
+66ft-88ft

Overall

13980

Females

4202

F18-39

4202

25K→30K

15.5 - 18.6 mi

Top 60%
×9stories
+181ft-148ft

Overall

17068

Females

6059

F18-39

6059

30K→20M

18.6 - 20.0 mi

Top 91%
×5stories
+64ft-50ft

Overall

25770

Females

10887

F18-39

10887

20M→21M

20.0 - 21.0 mi

Top 90%
×8stories
+106ft-24ft

Overall

25513

Females

10810

F18-39

10810

21M→35K

21.0 - 21.8 mi

Top 96%
×7stories
+17ft-86ft

Overall

27242

Females

11714

F18-39

11714

35K→23M

21.8 - 23.0 mi

Top 76%
×5stories
+23ft-63ft

Overall

21522

Females

8828

F18-39

8828

23M→24M

23.0 - 24.0 mi

Top 50%
×6stories
+12ft-82ft

Overall

14128

Females

4894

F18-39

4894

24M→40K

24.0 - 24.9 mi

Top 43%
×1story
+6ft-20ft

Overall

12345

Females

4114

F18-39

4114

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

12908

Females

4466

F18-39

4466

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2stories
+22ft-21ft

Overall

13932

Females

4922

F18-39

4922

Passing Analysis

Category:
Athletes Passed
618
Passed By
11383
Net Change
-10767
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4792
5K → 10K48561-513#4792#5305
10K → 15K21854-833#5305#6138
15K → 20K111139-1128#6138#7266
20K → Half2186-184#7266#7450
Half → 25K14866-852#7450#8302
25K → 30K241774-1751#8302#10053
30K → 20M32467-2465#10053#12518
20M → 21M01674-1674#12518#14192
21M → 35K21292-1290#14192#15482
35K → 23M42495-453#15482#15935
23M → 24M12327+96#15935#15839
24M → 40K16711+156#15839#15683
40K → 25.2M616+55#15683#15628
25.2M → Finish10031+69#15628#15559
TOTALS61811383-10767
📊

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