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BOSTON MARATHON 2025

Samantha Rosenberg

Bib: 25966•F

CT

0:00
0:00
/ mi
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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
29:00
Rank: #23659
Start → 5K
29:00 | 9:20/mi
10K· 6.21 mi
58:39
Rank: #24001 (-342)
5K → 10K
29:39 | 9:33/mi
15K· 9.32 mi
1:29:46
Rank: #24391 (-390)
10K → 15K
31:07 | 10:01/mi
20K· 12.43 mi
2:05:54
Rank: #25293 (-902)
15K → 20K
36:08 | 11:38/mi
Half· 13.11 mi
2:14:16
Rank: #25494 (-201)
20K → Half
8:22 | 12:16/mi
25K· 15.53 mi
2:46:05
Rank: #26022 (-528)
Half → 25K
31:49 | 13:07/mi
30K· 18.64 mi
3:26:01
Rank: #26157 (-135)
25K → 30K
39:56 | 12:51/mi
20M
3:42:39
Rank: #26121 (+36)
30K → 20M
16:38 | 12:14/mi
21M
3:55:40
Rank: #26070 (+51)
20M → 21M
13:01 | 13:01/mi
35K· 21.75 mi
4:04:06
Rank: #26028 (+42)
21M → 35K
8:26 | 11:16/mi
23M
4:20:03
Rank: #26059 (-31)
35K → 23M
15:57 | 12:44/mi
24M
4:30:41
Rank: #25976 (+83)
23M → 24M
10:38 | 10:38/mi
40K· 24.85 mi
4:41:03
Rank: #25962 (+14)
24M → 40K
10:22 | 12:07/mi
25.2M
4:44:58
Rank: #25918 (+44)
40K → 25.2M
3:55 | 11:21/mi
Finish· 26.22 mi
4:55:26
Rank: #25871 (+47)
25.2M → Finish
10:28 | 10:16/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:14:16
Pace10:15 /mi
2nd Half
Distance13.11 mi
Time2:41:10
Pace12:18 /mi
📊Positive Split: 20.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:1429:009:2029:00
9:20
-
10K
6.21 mi12:13:5358:399:2629:39
9:33
+0:13
15K
9.32 mi12:45:001:29:469:3831:07
10:01
+0:28
20K
12.43 mi13:21:082:05:5410:0836:08
11:38
+1:37
Half
13.11 mi13:29:302:14:1610:158:22
12:16
+0:38
25K
15.53 mi14:01:192:46:0510:4131:49
13:07
+0:51
30K
18.64 mi14:41:153:26:0111:0339:56
12:51
-0:16
20M
20.00 mi14:57:533:42:3911:0816:38
12:14
-0:37
21M
21.00 mi15:10:543:55:4011:1313:01
13:01
+0:47
35K
21.75 mi15:19:204:04:0611:138:26
11:16
-1:45
23M
23.00 mi15:35:174:20:0311:1815:57
12:44
+1:28
24M
24.00 mi15:45:554:30:4111:1710:38
10:38
-2:06
40K
24.85 mi15:56:174:41:0311:1810:22
12:07
+1:29
25.2M
25.20 mi16:00:124:44:5811:183:55
11:21
-0:46
Finish
26.22 mi16:10:404:55:2611:1710:28
10:16
-1:05

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

9:20 /mi

Average Pace

11:17 /mi

Slowest Pace

13:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:50:52

38% of race

Time at Steady Pace

1:15:29

26% of race

Time at Slower Pace

1:49:05

37% of race

Average Pace: 11:16 /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 mi11:44:1429:009:2029:00
9:20
#23659
10K
6.21 mi12:13:5358:399:2629:39
9:33
#24001
15K
9.32 mi12:45:001:29:469:3831:07
10:01
#24391
20K
12.43 mi13:21:082:05:5410:0836:08
11:38
#25293
Half
13.11 mi13:29:302:14:1610:158:22
12:16
#25494
25K
15.53 mi14:01:192:46:0510:4131:49
13:07
#26022
30K
18.64 mi14:41:153:26:0111:0339:56
12:51
#26157
20M
20.00 mi14:57:533:42:3911:0816:38
12:14
#26121
21M
21.00 mi15:10:543:55:4011:1313:01
13:01
#26070
35K
21.75 mi15:19:204:04:0611:138:26
11:16
#26028
23M
23.00 mi15:35:174:20:0311:1815:57
12:44
#26059
24M
24.00 mi15:45:554:30:4111:1710:38
10:38
#25976
40K
24.85 mi15:56:174:41:0311:1810:22
12:07
#25962
25.2M
25.20 mi16:00:124:44:5811:183:55
11:21
#25918
Finish
26.22 mi16:10:404:55:2611:1710:28
10:16
#25871
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi236599511951125016(Top 88%)10221(Top 84%)10221(Top 187%)
10K6.21 mi3.10 mi24001-3429685-1749685-17424218(Top 85%)9816(Top 80%)9816(Top 179%)
15K9.32 mi3.11 mi24391-3909900-2159900-21525016(Top 88%)10221(Top 84%)10221(Top 187%)
20K12.43 mi3.11 mi25293-90210403-50310403-50326770(Top 94%)11257(Top 92%)11257(Top 206%)
Half13.11 mi0.68 mi25494-20110507-10410507-10427632(Top 97%)11786(Top 96%)11786(Top 216%)
25K15.53 mi2.42 mi26022-52810812-30510812-30527374(Top 96%)11636(Top 95%)11636(Top 213%)
30K18.64 mi3.11 mi26157-13510910-9810910-9826525(Top 93%)11234(Top 92%)11234(Top 205%)
20M20.00 mi1.36 mi26121+3610905+510905+525582(Top 90%)10794(Top 88%)10794(Top 197%)
21M21.00 mi1.00 mi26070+5110884+2110884+2125050(Top 88%)10594(Top 87%)10594(Top 194%)
35K21.75 mi0.75 mi26028+4210869+1510869+1524713(Top 87%)10437(Top 85%)10437(Top 191%)
23M23.00 mi1.25 mi26059-3110892-2310892-2326075(Top 92%)11129(Top 91%)11129(Top 203%)
24M24.00 mi1.00 mi25976+8310856+3610856+3623139(Top 81%)9709(Top 79%)9709(Top 178%)
40K24.85 mi0.85 mi25962+1410855+110855+125102(Top 88%)10725(Top 88%)10725(Top 196%)
25.2M25.20 mi0.35 mi25918+4410841+1410841+1421616(Top 76%)8985(Top 73%)8985(Top 164%)
Finish26.22 mi1.02 mi25871+4710829+1210829+1223704(Top 83%)10031(Top 82%)10031(Top 183%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21stories
+97ft-345ft

Overall

25016

Females

10221

F18-39

10221

5K→10K

3.1 - 6.2 mi

Top 85%
×5stories
+79ft-138ft

Overall

24218

Females

9816

F18-39

9816

10K→15K

6.2 - 9.3 mi

Top 88%
×3stories
+67ft-78ft

Overall

25016

Females

10221

F18-39

10221

15K→20K

9.3 - 12.4 mi

Top 94%
×5stories
+106ft-86ft

Overall

26770

Females

11257

F18-39

11257

20K→Half

12.4 - 13.1 mi

Top 97%
×2stories
+19ft-37ft

Overall

27632

Females

11786

F18-39

11786

Half→25K

13.1 - 15.5 mi

Top 96%
×4stories
+66ft-88ft

Overall

27374

Females

11636

F18-39

11636

25K→30K

15.5 - 18.6 mi

Top 93%
×9stories
+181ft-148ft

Overall

26525

Females

11234

F18-39

11234

30K→20M

18.6 - 20.0 mi

Top 90%
×5stories
+64ft-50ft

Overall

25582

Females

10794

F18-39

10794

20M→21M

20.0 - 21.0 mi

Top 88%
×8stories
+106ft-24ft

Overall

25050

Females

10594

F18-39

10594

21M→35K

21.0 - 21.8 mi

Top 87%
×7stories
+17ft-86ft

Overall

24713

Females

10437

F18-39

10437

35K→23M

21.8 - 23.0 mi

Top 92%
×5stories
+23ft-63ft

Overall

26075

Females

11129

F18-39

11129

23M→24M

23.0 - 24.0 mi

Top 81%
×6stories
+12ft-82ft

Overall

23139

Females

9709

F18-39

9709

24M→40K

24.0 - 24.9 mi

Top 88%
×1story
+6ft-20ft

Overall

25102

Females

10725

F18-39

10725

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

21616

Females

8985

F18-39

8985

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2stories
+22ft-21ft

Overall

23704

Females

10031

F18-39

10031

Passing Analysis

Category:
Athletes Passed
692
Passed By
2904
Net Change
-2212
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23659
5K → 10K116458-342#23659#24001
10K → 15K45435-390#24001#24391
15K → 20K11913-902#24391#25293
20K → Half5206-201#25293#25494
Half → 25K10538-528#25494#26022
25K → 30K75210-135#26022#26157
30K → 20M6529+36#26157#26121
20M → 21M6817+51#26121#26070
21M → 35K5311+42#26070#26028
35K → 23M2859-31#26028#26059
23M → 24M863+83#26059#25976
24M → 40K3117+14#25976#25962
40K → 25.2M440+44#25962#25918
25.2M → Finish558+47#25918#25871
TOTALS6922904-2212
📊

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