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BOSTON MARATHON 2025

Samantha Feenstra

Bib: 9644•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 26%
Gender (Female)
#0 / 12228
Top 9%
Division (F18-39)
#0 / 5469
Top 17%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:11
Rank: #8988
Start → 5K
22:11 | 7:08/mi
10K· 6.21 mi
43:54
Rank: #8395 (+593)
5K → 10K
21:43 | 6:59/mi
15K· 9.32 mi
1:05:49
Rank: #8220 (+175)
10K → 15K
21:55 | 7:03/mi
20K· 12.43 mi
1:27:53
Rank: #7977 (+243)
15K → 20K
22:04 | 7:06/mi
Half· 13.11 mi
1:32:43
Rank: #7981 (-4)
20K → Half
4:50 | 7:05/mi
25K· 15.53 mi
1:50:06
Rank: #7841 (+140)
Half → 25K
17:23 | 7:10/mi
30K· 18.64 mi
2:13:28
Rank: #7749 (+92)
25K → 30K
23:22 | 7:31/mi
20M
2:23:47
Rank: #7676 (+73)
30K → 20M
10:19 | 7:36/mi
21M
2:31:46
Rank: #7574 (+102)
20M → 21M
7:59 | 7:59/mi
35K· 21.75 mi
2:37:17
Rank: #7559 (+15)
21M → 35K
5:31 | 7:22/mi
23M
2:46:44
Rank: #7455 (+104)
35K → 23M
9:27 | 7:33/mi
24M
2:54:11
Rank: #7410 (+45)
23M → 24M
7:27 | 7:27/mi
40K· 24.85 mi
3:00:42
Rank: #7357 (+53)
24M → 40K
6:31 | 7:37/mi
25.2M
3:03:35
Rank: #7353 (+4)
40K → 25.2M
2:53 | 8:22/mi
Finish· 26.22 mi
3:11:15
Rank: #7400 (-47)
25.2M → Finish
7:40 | 7:31/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:43
Pace7:04 /mi
2nd Half
Distance13.11 mi
Time1:38:32
Pace7:31 /mi
📊Positive Split: 6.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:2822:117:0822:11
7:08
-
10K
6.21 mi11:10:1143:547:0421:43
6:59
-0:09
15K
9.32 mi11:32:061:05:497:0421:55
7:03
+0:04
20K
12.43 mi11:54:101:27:537:0422:04
7:06
+0:03
Half
13.11 mi11:59:001:32:437:044:50
7:05
-0:01
25K
15.53 mi12:16:231:50:067:0517:23
7:10
+0:05
30K
18.64 mi12:39:452:13:287:1023:22
7:31
+0:21
20M
20.00 mi12:50:042:23:477:1110:19
7:36
+0:05
21M
21.00 mi12:58:032:31:467:147:59
7:59
+0:23
35K
21.75 mi13:03:342:37:177:145:31
7:22
-0:37
23M
23.00 mi13:13:012:46:447:159:27
7:33
+0:11
24M
24.00 mi13:20:282:54:117:157:27
7:27
-0:06
40K
24.85 mi13:26:593:00:427:166:31
7:37
+0:10
25.2M
25.20 mi13:29:523:03:357:172:53
8:22
+0:45
Finish
26.22 mi13:37:323:11:157:187:40
7:31
-0:51

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

6:59 /mi

Average Pace

7:18 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:00:23

94% of race

Time at Steady Pace

7:59

4% of race

Time at Slower Pace

2:53

2% of race

Average Pace: 7:18 /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 mi10:48:2822:117:0822:11
7:08
#8988
10K
6.21 mi11:10:1143:547:0421:43
6:59
#8395
15K
9.32 mi11:32:061:05:497:0421:55
7:03
#8220
20K
12.43 mi11:54:101:27:537:0422:04
7:06
#7977
Half
13.11 mi11:59:001:32:437:044:50
7:05
#7981
25K
15.53 mi12:16:231:50:067:0517:23
7:10
#7841
30K
18.64 mi12:39:452:13:287:1023:22
7:31
#7749
20M
20.00 mi12:50:042:23:477:1110:19
7:36
#7676
21M
21.00 mi12:58:032:31:467:147:59
7:59
#7574
35K
21.75 mi13:03:342:37:177:145:31
7:22
#7559
23M
23.00 mi13:13:012:46:447:159:27
7:33
#7455
24M
24.00 mi13:20:282:54:117:157:27
7:27
#7410
40K
24.85 mi13:26:593:00:427:166:31
7:37
#7357
25.2M
25.20 mi13:29:523:03:357:172:53
8:22
#7353
Finish
26.22 mi13:37:323:11:157:187:40
7:31
#7400
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8988136413648006(Top 28%)1043(Top 9%)1043(Top 19%)
10K6.21 mi3.10 mi8395+5931142+2221142+2227870(Top 28%)962(Top 8%)962(Top 18%)
15K9.32 mi3.11 mi8220+1751085+571085+578006(Top 28%)1043(Top 9%)1043(Top 19%)
20K12.43 mi3.11 mi7977+2431018+671018+677545(Top 27%)951(Top 8%)951(Top 17%)
Half13.11 mi0.68 mi7981-41021-31021-38232(Top 29%)1170(Top 10%)1170(Top 21%)
25K15.53 mi2.42 mi7841+140988+33988+337409(Top 26%)1005(Top 8%)1005(Top 18%)
30K18.64 mi3.11 mi7749+921010-221010-227900(Top 28%)1354(Top 11%)1354(Top 25%)
20M20.00 mi1.36 mi7676+731016-61016-67638(Top 27%)1384(Top 11%)1384(Top 25%)
21M21.00 mi1.00 mi7574+1021025-91025-97276(Top 26%)1416(Top 12%)1416(Top 26%)
35K21.75 mi0.75 mi7559+151041-161041-167745(Top 27%)1568(Top 13%)1568(Top 29%)
23M23.00 mi1.25 mi7455+1041042-11042-16917(Top 24%)1355(Top 11%)1355(Top 25%)
24M24.00 mi1.00 mi7410+451064-221064-227369(Top 26%)1599(Top 13%)1599(Top 29%)
40K24.85 mi0.85 mi7357+531072-81072-87579(Top 27%)1784(Top 15%)1784(Top 33%)
25.2M25.20 mi0.35 mi7353+41085-131085-137991(Top 28%)2049(Top 17%)2049(Top 37%)
Finish26.22 mi1.02 mi7400-471137-521137-529364(Top 33%)2692(Top 22%)2692(Top 49%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21stories
+97ft-345ft

Overall

8006

Females

1043

F18-39

1043

5K→10K

3.1 - 6.2 mi

Top 28%
×5stories
+79ft-138ft

Overall

7870

Females

962

F18-39

962

10K→15K

6.2 - 9.3 mi

Top 28%
×3stories
+67ft-78ft

Overall

8006

Females

1043

F18-39

1043

15K→20K

9.3 - 12.4 mi

Top 27%
×5stories
+106ft-86ft

Overall

7545

Females

951

F18-39

951

20K→Half

12.4 - 13.1 mi

Top 29%
×2stories
+19ft-37ft

Overall

8232

Females

1170

F18-39

1170

Half→25K

13.1 - 15.5 mi

Top 26%
×4stories
+66ft-88ft

Overall

7409

Females

1005

F18-39

1005

25K→30K

15.5 - 18.6 mi

Top 28%
×9stories
+181ft-148ft

Overall

7900

Females

1354

F18-39

1354

30K→20M

18.6 - 20.0 mi

Top 27%
×5stories
+64ft-50ft

Overall

7638

Females

1384

F18-39

1384

20M→21M

20.0 - 21.0 mi

Top 26%
×8stories
+106ft-24ft

Overall

7276

Females

1416

F18-39

1416

21M→35K

21.0 - 21.8 mi

Top 27%
×7stories
+17ft-86ft

Overall

7745

Females

1568

F18-39

1568

35K→23M

21.8 - 23.0 mi

Top 24%
×5stories
+23ft-63ft

Overall

6917

Females

1355

F18-39

1355

23M→24M

23.0 - 24.0 mi

Top 26%
×6stories
+12ft-82ft

Overall

7369

Females

1599

F18-39

1599

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7579

Females

1784

F18-39

1784

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7991

Females

2049

F18-39

2049

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2stories
+22ft-21ft

Overall

9364

Females

2692

F18-39

2692

Passing Analysis

Category:
Athletes Passed
2345
Passed By
757
Net Change
+1588
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8988
5K → 10K63542+593#8988#8395
10K → 15K24469+175#8395#8220
15K → 20K27734+243#8220#7977
20K → Half2832-4#7977#7981
Half → 25K19151+140#7981#7841
25K → 30K230138+92#7841#7749
30K → 20M12552+73#7749#7676
20M → 21M14341+102#7676#7574
21M → 35K6348+15#7574#7559
35K → 23M15046+104#7559#7455
23M → 24M8944+45#7455#7410
24M → 40K9441+53#7410#7357
40K → 25.2M3127+4#7357#7353
25.2M → Finish4592-47#7353#7400
TOTALS2345757+1588
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing