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BOSTON MARATHON 2025

Karolina Swedblom

Bib: 23608•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
25:53
Rank: #18932
Start → 5K
25:53 | 8:20/mi
10K· 6.21 mi
52:04
Rank: #19123 (-191)
5K → 10K
26:11 | 8:26/mi
15K· 9.32 mi
1:18:41
Rank: #19309 (-186)
10K → 15K
26:37 | 8:34/mi
20K· 12.43 mi
1:47:00
Rank: #19926 (-617)
15K → 20K
28:19 | 9:07/mi
Half· 13.11 mi
1:53:16
Rank: #20066 (-140)
20K → Half
6:16 | 9:11/mi
25K· 15.53 mi
2:16:42
Rank: #20633 (-567)
Half → 25K
23:26 | 9:40/mi
30K· 18.64 mi
2:48:22
Rank: #21023 (-390)
25K → 30K
31:40 | 10:12/mi
20M
3:02:18
Rank: #21102 (-79)
30K → 20M
13:56 | 10:15/mi
21M
3:13:05
Rank: #21095 (+7)
20M → 21M
10:47 | 10:47/mi
35K· 21.75 mi
3:20:45
Rank: #21167 (-72)
21M → 35K
7:40 | 10:15/mi
23M
3:33:56
Rank: #21229 (-62)
35K → 23M
13:11 | 10:32/mi
24M
3:44:16
Rank: #21298 (-69)
23M → 24M
10:20 | 10:20/mi
40K· 24.85 mi
3:53:10
Rank: #21310 (-12)
24M → 40K
8:54 | 10:25/mi
25.2M
3:57:03
Rank: #21312 (-2)
40K → 25.2M
3:53 | 11:16/mi
Finish· 26.22 mi
4:07:03
Rank: #21351 (-39)
25.2M → Finish
10:00 | 9:49/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:16
Pace8:38 /mi
2nd Half
Distance13.11 mi
Time2:13:47
Pace10:12 /mi
📊Positive Split: 18.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:0425:538:2025:53
8:20
-
10K
6.21 mi11:50:1552:048:2326:11
8:26
+0:06
15K
9.32 mi12:16:521:18:418:2726:37
8:34
+0:08
20K
12.43 mi12:45:111:47:008:3728:19
9:07
+0:33
Half
13.11 mi12:51:271:53:168:386:16
9:11
+0:04
25K
15.53 mi13:14:532:16:428:4823:26
9:40
+0:29
30K
18.64 mi13:46:332:48:229:0231:40
10:12
+0:32
20M
20.00 mi14:00:293:02:189:0713:56
10:15
+0:03
21M
21.00 mi14:11:163:13:059:1210:47
10:47
+0:32
35K
21.75 mi14:18:563:20:459:147:40
10:15
-0:32
23M
23.00 mi14:32:073:33:569:1813:11
10:32
+0:17
24M
24.00 mi14:42:273:44:169:2110:20
10:20
-0:12
40K
24.85 mi14:51:213:53:109:238:54
10:25
+0:05
25.2M
25.20 mi14:55:143:57:039:243:53
11:16
+0:51
Finish
26.22 mi15:05:144:07:039:2610:00
9:49
-1:27

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

8:20 /mi

Average Pace

9:26 /mi

Slowest Pace

11:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:16:42

55% of race

Time at Steady Pace

1:35:41

39% of race

Time at Slower Pace

14:40

6% of race

Average Pace: 9:25 /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 mi11:24:0425:538:2025:53
8:20
#18932
10K
6.21 mi11:50:1552:048:2326:11
8:26
#19123
15K
9.32 mi12:16:521:18:418:2726:37
8:34
#19309
20K
12.43 mi12:45:111:47:008:3728:19
9:07
#19926
Half
13.11 mi12:51:271:53:168:386:16
9:11
#20066
25K
15.53 mi13:14:532:16:428:4823:26
9:40
#20633
30K
18.64 mi13:46:332:48:229:0231:40
10:12
#21023
20M
20.00 mi14:00:293:02:189:0713:56
10:15
#21102
21M
21.00 mi14:11:163:13:059:1210:47
10:47
#21095
35K
21.75 mi14:18:563:20:459:147:40
10:15
#21167
23M
23.00 mi14:32:073:33:569:1813:11
10:32
#21229
24M
24.00 mi14:42:273:44:169:2110:20
10:20
#21298
40K
24.85 mi14:51:213:53:109:238:54
10:25
#21310
25.2M
25.20 mi14:55:143:57:039:243:53
11:16
#21312
Finish
26.22 mi15:05:144:07:039:2610:00
9:49
#21351
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi189326875687519749(Top 70%)7300(Top 60%)7300(Top 560%)
10K6.21 mi3.10 mi19123-1916972-976972-9719369(Top 68%)7094(Top 58%)7094(Top 544%)
15K9.32 mi3.11 mi19309-1867067-957067-9519749(Top 70%)7300(Top 60%)7300(Top 560%)
20K12.43 mi3.11 mi19926-6177432-3657432-36521523(Top 76%)8330(Top 68%)8330(Top 639%)
Half13.11 mi0.68 mi20066-1407512-807512-8022552(Top 79%)8903(Top 73%)8903(Top 683%)
25K15.53 mi2.42 mi20633-5677841-3297841-32922402(Top 79%)8876(Top 73%)8876(Top 681%)
30K18.64 mi3.11 mi21023-3908101-2608101-26022171(Top 78%)8859(Top 72%)8859(Top 680%)
20M20.00 mi1.36 mi21102-798165-648165-6421732(Top 77%)8751(Top 72%)8751(Top 672%)
21M21.00 mi1.00 mi21095+78175-108175-1020804(Top 73%)8349(Top 68%)8349(Top 641%)
35K21.75 mi0.75 mi21167-728225-508225-5022564(Top 79%)9312(Top 76%)9312(Top 715%)
23M23.00 mi1.25 mi21229-628285-608285-6022101(Top 78%)9116(Top 75%)9116(Top 700%)
24M24.00 mi1.00 mi21298-698346-618346-6122354(Top 79%)9315(Top 76%)9315(Top 715%)
40K24.85 mi0.85 mi21310-128370-248370-2421676(Top 76%)9026(Top 74%)9026(Top 693%)
25.2M25.20 mi0.35 mi21312-28380-108380-1021444(Top 75%)8877(Top 73%)8877(Top 681%)
Finish26.22 mi1.02 mi21351-398417-378417-3722332(Top 79%)9337(Top 76%)9337(Top 717%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21stories
+97ft-345ft

Overall

19749

Females

7300

F50-54

7300

5K→10K

3.1 - 6.2 mi

Top 68%
×5stories
+79ft-138ft

Overall

19369

Females

7094

F50-54

7094

10K→15K

6.2 - 9.3 mi

Top 70%
×3stories
+67ft-78ft

Overall

19749

Females

7300

F50-54

7300

15K→20K

9.3 - 12.4 mi

Top 76%
×5stories
+106ft-86ft

Overall

21523

Females

8330

F50-54

8330

20K→Half

12.4 - 13.1 mi

Top 79%
×2stories
+19ft-37ft

Overall

22552

Females

8903

F50-54

8903

Half→25K

13.1 - 15.5 mi

Top 79%
×4stories
+66ft-88ft

Overall

22402

Females

8876

F50-54

8876

25K→30K

15.5 - 18.6 mi

Top 78%
×9stories
+181ft-148ft

Overall

22171

Females

8859

F50-54

8859

30K→20M

18.6 - 20.0 mi

Top 77%
×5stories
+64ft-50ft

Overall

21732

Females

8751

F50-54

8751

20M→21M

20.0 - 21.0 mi

Top 73%
×8stories
+106ft-24ft

Overall

20804

Females

8349

F50-54

8349

21M→35K

21.0 - 21.8 mi

Top 79%
×7stories
+17ft-86ft

Overall

22564

Females

9312

F50-54

9312

35K→23M

21.8 - 23.0 mi

Top 78%
×5stories
+23ft-63ft

Overall

22101

Females

9116

F50-54

9116

23M→24M

23.0 - 24.0 mi

Top 79%
×6stories
+12ft-82ft

Overall

22354

Females

9315

F50-54

9315

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

21676

Females

9026

F50-54

9026

40K→25.2M

24.9 - 25.2 mi

Top 75%
×1story
+13ft-16ft

Overall

21444

Females

8877

F50-54

8877

25.2M→Finish

25.2 - 26.2 mi

Top 79%
×2stories
+22ft-21ft

Overall

22332

Females

9337

F50-54

9337

Passing Analysis

Category:
Athletes Passed
952
Passed By
3371
Net Change
-2419
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18932
5K → 10K177368-191#18932#19123
10K → 15K142328-186#19123#19309
15K → 20K61678-617#19309#19926
20K → Half9149-140#19926#20066
Half → 25K42609-567#20066#20633
25K → 30K107497-390#20633#21023
30K → 20M80159-79#21023#21102
20M → 21M9588+7#21102#21095
21M → 35K34106-72#21095#21167
35K → 23M70132-62#21167#21229
23M → 24M3099-69#21229#21298
24M → 40K4759-12#21298#21310
40K → 25.2M2830-2#21310#21312
25.2M → Finish3069-39#21312#21351
TOTALS9523371-2419
📊

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