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BOSTON MARATHON 2025

Samantha Brown

Bib: 28593•F

NC

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F40-44)
#0 / 1718
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:25
Rank: #23029
Start → 5K
28:25 | 9:09/mi
10K· 6.21 mi
55:38
Rank: #22224 (+805)
5K → 10K
27:13 | 8:46/mi
15K· 9.32 mi
1:22:33
Rank: #21564 (+660)
10K → 15K
26:55 | 8:40/mi
20K· 12.43 mi
1:49:37
Rank: #21028 (+536)
15K → 20K
27:04 | 8:43/mi
Half· 13.11 mi
1:55:29
Rank: #20967 (+61)
20K → Half
5:52 | 8:36/mi
25K· 15.53 mi
2:16:35
Rank: #20586 (+381)
Half → 25K
21:06 | 8:42/mi
30K· 18.64 mi
2:44:54
Rank: #20117 (+469)
25K → 30K
28:19 | 9:07/mi
20M
2:58:01
Rank: #20088 (+29)
30K → 20M
13:07 | 9:39/mi
21M
3:08:35
Rank: #20088
20M → 21M
10:34 | 10:34/mi
35K· 21.75 mi
3:15:27
Rank: #20058 (+30)
21M → 35K
6:52 | 9:11/mi
23M
3:27:18
Rank: #19980 (+78)
35K → 23M
11:51 | 9:28/mi
24M
3:37:26
Rank: #20096 (-116)
23M → 24M
10:08 | 10:08/mi
40K· 24.85 mi
3:45:43
Rank: #20074 (+22)
24M → 40K
8:17 | 9:41/mi
25.2M
3:49:27
Rank: #20094 (-20)
40K → 25.2M
3:44 | 10:50/mi
Finish· 26.22 mi
3:58:41
Rank: #20098 (-4)
25.2M → Finish
9:14 | 9:04/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:29
Pace8:49 /mi
2nd Half
Distance13.11 mi
Time2:03:12
Pace9:24 /mi
📊Positive Split: 6.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:4828:259:0928:25
9:09
-
10K
6.21 mi12:15:0155:388:5727:13
8:46
-0:23
15K
9.32 mi12:41:561:22:338:5126:55
8:40
-0:06
20K
12.43 mi13:09:001:49:378:4927:04
8:43
+0:03
Half
13.11 mi13:14:521:55:298:495:52
8:36
-0:07
25K
15.53 mi13:35:582:16:358:4821:06
8:42
+0:06
30K
18.64 mi14:04:172:44:548:5128:19
9:07
+0:25
20M
20.00 mi14:17:242:58:018:5413:07
9:39
+0:32
21M
21.00 mi14:27:583:08:358:5910:34
10:34
+0:55
35K
21.75 mi14:34:503:15:278:596:52
9:11
-1:23
23M
23.00 mi14:46:413:27:189:0111:51
9:28
+0:17
24M
24.00 mi14:56:493:37:269:0410:08
10:08
+0:40
40K
24.85 mi15:05:063:45:439:058:17
9:41
-0:27
25.2M
25.20 mi15:08:503:49:279:063:44
10:50
+1:09
Finish
26.22 mi15:18:043:58:419:079:14
9:04
-1:46

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

8:36 /mi

Average Pace

9:07 /mi

Slowest Pace

10:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:48:10

45% of race

Time at Steady Pace

1:24:41

35% of race

Time at Slower Pace

45:50

19% of race

Average Pace: 9:06 /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 mi11:47:4828:259:0928:25
9:09
#23029
10K
6.21 mi12:15:0155:388:5727:13
8:46
#22224
15K
9.32 mi12:41:561:22:338:5126:55
8:40
#21564
20K
12.43 mi13:09:001:49:378:4927:04
8:43
#21028
Half
13.11 mi13:14:521:55:298:495:52
8:36
#20967
25K
15.53 mi13:35:582:16:358:4821:06
8:42
#20586
30K
18.64 mi14:04:172:44:548:5128:19
9:07
#20117
20M
20.00 mi14:17:242:58:018:5413:07
9:39
#20088
21M
21.00 mi14:27:583:08:358:5910:34
10:34
#20088
35K
21.75 mi14:34:503:15:278:596:52
9:11
#20058
23M
23.00 mi14:46:413:27:189:0111:51
9:28
#19980
24M
24.00 mi14:56:493:37:269:0410:08
10:08
#20096
40K
24.85 mi15:05:063:45:439:058:17
9:41
#20074
25.2M
25.20 mi15:08:503:49:279:063:44
10:50
#20094
Finish
26.22 mi15:18:043:58:419:079:14
9:04
#20098
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi230299183918320278(Top 71%)7584(Top 62%)7584(Top 441%)
10K6.21 mi3.10 mi22224+8058738+4458738+44521215(Top 75%)8149(Top 67%)8149(Top 474%)
15K9.32 mi3.11 mi21564+6608340+3988340+39820278(Top 71%)7584(Top 62%)7584(Top 441%)
20K12.43 mi3.11 mi21028+5368047+2938047+29319476(Top 69%)7191(Top 59%)7191(Top 419%)
Half13.11 mi0.68 mi20967+618014+338014+3319862(Top 70%)7400(Top 61%)7400(Top 431%)
25K15.53 mi2.42 mi20586+3817820+1947820+19418424(Top 65%)6672(Top 55%)6672(Top 388%)
30K18.64 mi3.11 mi20117+4697591+2297591+22918256(Top 64%)6722(Top 55%)6722(Top 391%)
20M20.00 mi1.36 mi20088+297599-87599-819794(Top 70%)7674(Top 63%)7674(Top 447%)
21M21.00 mi1.00 mi200887629-307629-3020233(Top 71%)8038(Top 66%)8038(Top 468%)
35K21.75 mi0.75 mi20058+307629762919118(Top 67%)7513(Top 61%)7513(Top 437%)
23M23.00 mi1.25 mi19980+787607+227607+2218546(Top 65%)7262(Top 59%)7262(Top 423%)
24M24.00 mi1.00 mi20096-1167689-827689-8221747(Top 77%)8996(Top 74%)8996(Top 524%)
40K24.85 mi0.85 mi20074+227701-127701-1219443(Top 68%)7859(Top 64%)7859(Top 457%)
25.2M25.20 mi0.35 mi20094-207720-197720-1920144(Top 71%)8234(Top 67%)8234(Top 479%)
Finish26.22 mi1.02 mi20098-47732-127732-1219356(Top 68%)7788(Top 64%)7788(Top 453%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21stories
+97ft-345ft

Overall

20278

Females

7584

F40-44

7584

5K→10K

3.1 - 6.2 mi

Top 75%
×5stories
+79ft-138ft

Overall

21215

Females

8149

F40-44

8149

10K→15K

6.2 - 9.3 mi

Top 71%
×3stories
+67ft-78ft

Overall

20278

Females

7584

F40-44

7584

15K→20K

9.3 - 12.4 mi

Top 69%
×5stories
+106ft-86ft

Overall

19476

Females

7191

F40-44

7191

20K→Half

12.4 - 13.1 mi

Top 70%
×2stories
+19ft-37ft

Overall

19862

Females

7400

F40-44

7400

Half→25K

13.1 - 15.5 mi

Top 65%
×4stories
+66ft-88ft

Overall

18424

Females

6672

F40-44

6672

25K→30K

15.5 - 18.6 mi

Top 64%
×9stories
+181ft-148ft

Overall

18256

Females

6722

F40-44

6722

30K→20M

18.6 - 20.0 mi

Top 70%
×5stories
+64ft-50ft

Overall

19794

Females

7674

F40-44

7674

20M→21M

20.0 - 21.0 mi

Top 71%
×8stories
+106ft-24ft

Overall

20233

Females

8038

F40-44

8038

21M→35K

21.0 - 21.8 mi

Top 67%
×7stories
+17ft-86ft

Overall

19118

Females

7513

F40-44

7513

35K→23M

21.8 - 23.0 mi

Top 65%
×5stories
+23ft-63ft

Overall

18546

Females

7262

F40-44

7262

23M→24M

23.0 - 24.0 mi

Top 77%
×6stories
+12ft-82ft

Overall

21747

Females

8996

F40-44

8996

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

19443

Females

7859

F40-44

7859

40K→25.2M

24.9 - 25.2 mi

Top 71%
×1story
+13ft-16ft

Overall

20144

Females

8234

F40-44

8234

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2stories
+22ft-21ft

Overall

19356

Females

7788

F40-44

7788

Passing Analysis

Category:
Athletes Passed
3618
Passed By
687
Net Change
+2931
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23029
5K → 10K83934+805#23029#22224
10K → 15K67212+660#22224#21564
15K → 20K55115+536#21564#21028
20K → Half7514+61#21028#20967
Half → 25K39514+381#20967#20586
25K → 30K50031+469#20586#20117
30K → 20M11485+29#20117#20088
20M → 21M97970#20088#20088
21M → 35K6838+30#20088#20058
35K → 23M12244+78#20058#19980
23M → 24M31147-116#19980#20096
24M → 40K6846+22#20096#20074
40K → 25.2M2444-20#20074#20094
25.2M → Finish6266-4#20094#20098
TOTALS3618687+2931
📊

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