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BOSTON MARATHON 2025

Sonja Barth

Bib: 21663•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:07
Rank: #21147
Start → 5K
27:07 | 8:44/mi
10K· 6.21 mi
54:56
Rank: #21669 (-522)
5K → 10K
27:49 | 8:57/mi
15K· 9.32 mi
1:22:52
Rank: #21775 (-106)
10K → 15K
27:56 | 8:59/mi
20K· 12.43 mi
1:51:20
Rank: #21746 (+29)
15K → 20K
28:28 | 9:10/mi
Half· 13.11 mi
1:57:21
Rank: #21701 (+45)
20K → Half
6:01 | 8:49/mi
25K· 15.53 mi
2:20:49
Rank: #21868 (-167)
Half → 25K
23:28 | 9:41/mi
30K· 18.64 mi
2:53:46
Rank: #22241 (-373)
25K → 30K
32:57 | 10:36/mi
20M
3:09:05
Rank: #22419 (-178)
30K → 20M
15:19 | 11:16/mi
21M
3:20:55
Rank: #22468 (-49)
20M → 21M
11:50 | 11:50/mi
35K· 21.75 mi
3:28:39
Rank: #22466 (+2)
21M → 35K
7:44 | 10:20/mi
23M
3:42:14
Rank: #22489 (-23)
35K → 23M
13:35 | 10:51/mi
24M
3:52:25
Rank: #22442 (+47)
23M → 24M
10:11 | 10:11/mi
40K· 24.85 mi
4:02:00
Rank: #22486 (-44)
24M → 40K
9:35 | 11:13/mi
25.2M
4:06:42
Rank: #22583 (-97)
40K → 25.2M
4:42 | 13:38/mi
Finish· 26.22 mi
4:17:08
Rank: #22611 (-28)
25.2M → Finish
10:26 | 10:14/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:21
Pace8:57 /mi
2nd Half
Distance13.11 mi
Time2:19:47
Pace10:40 /mi
📊Positive Split: 19.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:4127:078:4427:07
8:44
-
10K
6.21 mi11:49:3054:568:5027:49
8:57
+0:13
15K
9.32 mi12:17:261:22:528:5327:56
8:59
+0:02
20K
12.43 mi12:45:541:51:208:5828:28
9:10
+0:11
Half
13.11 mi12:51:551:57:218:576:01
8:49
-0:21
25K
15.53 mi13:15:232:20:499:0423:28
9:41
+0:52
30K
18.64 mi13:48:202:53:469:1932:57
10:36
+0:55
20M
20.00 mi14:03:393:09:059:2715:19
11:16
+0:40
21M
21.00 mi14:15:293:20:559:3411:50
11:50
+0:34
35K
21.75 mi14:23:133:28:399:367:44
10:20
-1:30
23M
23.00 mi14:36:483:42:149:4013:35
10:51
+0:31
24M
24.00 mi14:46:593:52:259:4110:11
10:11
-0:40
40K
24.85 mi14:56:344:02:009:449:35
11:13
+1:02
25.2M
25.20 mi15:01:164:06:429:474:42
13:38
+2:25
Finish
26.22 mi15:11:424:17:089:4910:26
10:14
-3:24

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

8:44 /mi

Average Pace

9:49 /mi

Slowest Pace

13:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:21

46% of race

Time at Steady Pace

1:38:21

38% of race

Time at Slower Pace

41:26

16% of race

Average Pace: 9:48 /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 mi11:21:4127:078:4427:07
8:44
#21147
10K
6.21 mi11:49:3054:568:5027:49
8:57
#21669
15K
9.32 mi12:17:261:22:528:5327:56
8:59
#21775
20K
12.43 mi12:45:541:51:208:5828:28
9:10
#21746
Half
13.11 mi12:51:551:57:218:576:01
8:49
#21701
25K
15.53 mi13:15:232:20:499:0423:28
9:41
#21868
30K
18.64 mi13:48:202:53:469:1932:57
10:36
#22241
20M
20.00 mi14:03:393:09:059:2715:19
11:16
#22419
21M
21.00 mi14:15:293:20:559:3411:50
11:50
#22468
35K
21.75 mi14:23:133:28:399:367:44
10:20
#22466
23M
23.00 mi14:36:483:42:149:4013:35
10:51
#22489
24M
24.00 mi14:46:593:52:259:4110:11
10:11
#22442
40K
24.85 mi14:56:344:02:009:449:35
11:13
#22486
25.2M
25.20 mi15:01:164:06:429:474:42
13:38
#22583
Finish
26.22 mi15:11:424:17:089:4910:26
10:14
#22611
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi211478165816522003(Top 77%)8554(Top 70%)8554(Top 656%)
10K6.21 mi3.10 mi21669-5228426-2618426-26122187(Top 78%)8703(Top 71%)8703(Top 668%)
15K9.32 mi3.11 mi21775-1068483-578483-5722003(Top 77%)8554(Top 70%)8554(Top 656%)
20K12.43 mi3.11 mi21746+298462+218462+2121758(Top 77%)8466(Top 69%)8466(Top 650%)
Half13.11 mi0.68 mi21701+458439+238439+2321055(Top 74%)8088(Top 66%)8088(Top 621%)
25K15.53 mi2.42 mi21868-1678538-998538-9922446(Top 79%)8902(Top 73%)8902(Top 683%)
30K18.64 mi3.11 mi22241-3738760-2228760-22223183(Top 82%)9428(Top 77%)9428(Top 724%)
20M20.00 mi1.36 mi22419-1788882-1228882-12224144(Top 85%)10031(Top 82%)10031(Top 770%)
21M21.00 mi1.00 mi22468-498929-478929-4723286(Top 82%)9648(Top 79%)9648(Top 740%)
35K21.75 mi0.75 mi22466+28941-128941-1222806(Top 80%)9442(Top 77%)9442(Top 725%)
23M23.00 mi1.25 mi22489-238982-418982-4122875(Top 81%)9536(Top 78%)9536(Top 732%)
24M24.00 mi1.00 mi22442+478980+28980+221904(Top 77%)9090(Top 74%)9090(Top 698%)
40K24.85 mi0.85 mi22486-449024-449024-4423588(Top 83%)9979(Top 82%)9979(Top 766%)
25.2M25.20 mi0.35 mi22583-979084-609084-6025861(Top 91%)11111(Top 91%)11111(Top 853%)
Finish26.22 mi1.02 mi22611-289121-379121-3723643(Top 83%)9997(Top 82%)9997(Top 767%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21stories
+97ft-345ft

Overall

22003

Females

8554

F50-54

8554

5K→10K

3.1 - 6.2 mi

Top 78%
×5stories
+79ft-138ft

Overall

22187

Females

8703

F50-54

8703

10K→15K

6.2 - 9.3 mi

Top 77%
×3stories
+67ft-78ft

Overall

22003

Females

8554

F50-54

8554

15K→20K

9.3 - 12.4 mi

Top 77%
×5stories
+106ft-86ft

Overall

21758

Females

8466

F50-54

8466

20K→Half

12.4 - 13.1 mi

Top 74%
×2stories
+19ft-37ft

Overall

21055

Females

8088

F50-54

8088

Half→25K

13.1 - 15.5 mi

Top 79%
×4stories
+66ft-88ft

Overall

22446

Females

8902

F50-54

8902

25K→30K

15.5 - 18.6 mi

Top 82%
×9stories
+181ft-148ft

Overall

23183

Females

9428

F50-54

9428

30K→20M

18.6 - 20.0 mi

Top 85%
×5stories
+64ft-50ft

Overall

24144

Females

10031

F50-54

10031

20M→21M

20.0 - 21.0 mi

Top 82%
×8stories
+106ft-24ft

Overall

23286

Females

9648

F50-54

9648

21M→35K

21.0 - 21.8 mi

Top 80%
×7stories
+17ft-86ft

Overall

22806

Females

9442

F50-54

9442

35K→23M

21.8 - 23.0 mi

Top 81%
×5stories
+23ft-63ft

Overall

22875

Females

9536

F50-54

9536

23M→24M

23.0 - 24.0 mi

Top 77%
×6stories
+12ft-82ft

Overall

21904

Females

9090

F50-54

9090

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

23588

Females

9979

F50-54

9979

40K→25.2M

24.9 - 25.2 mi

Top 91%
×1story
+13ft-16ft

Overall

25861

Females

11111

F50-54

11111

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2stories
+22ft-21ft

Overall

23643

Females

9997

F50-54

9997

Passing Analysis

Category:
Athletes Passed
1072
Passed By
2536
Net Change
-1464
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21147
5K → 10K111633-522#21147#21669
10K → 15K167273-106#21669#21775
15K → 20K200171+29#21775#21746
20K → Half6015+45#21746#21701
Half → 25K97264-167#21701#21868
25K → 30K88461-373#21868#22241
30K → 20M37215-178#22241#22419
20M → 21M60109-49#22419#22468
21M → 35K4644+2#22468#22466
35K → 23M6285-23#22466#22489
23M → 24M7629+47#22489#22442
24M → 40K3175-44#22442#22486
40K → 25.2M3100-97#22486#22583
25.2M → Finish3462-28#22583#22611
TOTALS10722536-1464
📊

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