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BOSTON MARATHON 2025

Kathryn Besemer

Bib: 25305•F

CO

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F65-69)
#0 / 222
Top 32%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:52/mi
30:38
↑ 97↓ 3451.5%
10K· 6.21 mi
9:48/mi
1:01:05
↑ 79↓ 1380.4%
15K· 9.32 mi
9:44/mi
1:31:18
↑ 67↓ 78
20K· 12.43 mi
9:59/mi
2:02:20
↑ 106↓ 860.1%
Half· 13.11 mi
9:10/mi
2:08:35
↑ 19↓ 370.5%
25K· 15.53 mi
9:30/mi
2:31:37
↑ 66↓ 880.2%
30K· 18.64 mi
9:53/mi
3:02:20
↑ 181↓ 1480.2%
20M
9:40/mi
3:15:28
↑ 64↓ 500.2%
21M
10:35/mi
3:26:03
↑ 106↓ 241.6%
35K· 21.75 mi
9:11/mi
3:32:55
↑ 17↓ 861.7%
23M
9:12/mi
3:44:26
↑ 23↓ 630.6%
24M
9:26/mi
3:53:52
↓ 821.3%
40K· 24.85 mi
9:32/mi
4:02:01
↓ 200.3%
25.2M
10:50/mi
4:05:45
↑ 13↓ 160.2%
Finish· 26.22 mi
8:42/mi
4:14:37
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time2:08:35
Pace9:48 /mi
2nd Half✓ Faster
Distance13.11 mi
Time2:06:02
Pace9:37 /mi
📊Negative Split: 2.0% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:30:4830:389:5230:38
9:52
-
10K
6.21 mi12:01:151:01:059:5030:27
9:48
-0:04
15K
9.32 mi12:31:281:31:189:4830:13
9:44
-0:04
20K
12.43 mi13:02:302:02:209:5131:02
9:59
+0:15
Half
13.11 mi13:08:452:08:359:486:15
9:10
-0:49
25K
15.53 mi13:31:472:31:379:4623:02
9:30
+0:20
30K
18.64 mi14:02:303:02:209:4730:43
9:53
+0:23
20M
20.00 mi14:15:383:15:289:4613:08
9:40
-0:13
21M
21.00 mi14:26:133:26:039:4910:35
10:35
+0:55
35K
21.75 mi14:33:053:32:559:476:52
9:11
-1:24
23M
23.00 mi14:44:363:44:269:4511:31
9:12
+0:01
24M
24.00 mi14:54:023:53:529:459:26
9:26
+0:14
40K
24.85 mi15:02:114:02:019:448:09
9:32
+0:06
25.2M
25.20 mi15:05:554:05:459:453:44
10:50
+1:18
Finish
26.22 mi15:14:474:14:379:438:52
8:42
-2:08

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

8:42 /mi

Average Pace

9:43 /mi

Slowest Pace

10:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

33:30

13% of race

Time at Steady Pace

2:55:46

69% of race

Time at Slower Pace

45:21

18% of race

Average Pace: 9:43 /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 mi11:30:4830:389:5230:38
9:52
#25242
10K
6.21 mi12:01:151:01:059:5030:27
9:48
#25039
15K
9.32 mi12:31:281:31:189:4830:13
9:44
#24812
20K
12.43 mi13:02:302:02:209:5131:02
9:59
#24635
Half
13.11 mi13:08:452:08:359:486:15
9:10
#24550
25K
15.53 mi13:31:472:31:379:4623:02
9:30
#24129
30K
18.64 mi14:02:303:02:209:4730:43
9:53
#23618
20M
20.00 mi14:15:383:15:289:4613:08
9:40
#23344
21M
21.00 mi14:26:133:26:039:4910:35
10:35
#23179
35K
21.75 mi14:33:053:32:559:476:52
9:11
#23051
23M
23.00 mi14:44:363:44:269:4511:31
9:12
#22780
24M
24.00 mi14:54:023:53:529:459:26
9:26
#22620
40K
24.85 mi15:02:114:02:019:448:09
9:32
#22488
25.2M
25.20 mi15:05:554:05:459:453:44
10:50
#22457
Finish
26.22 mi15:14:474:14:379:438:52
8:42
#22303
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF65-69Seg. OverallSeg. FemalesSeg. F65-69
5K3.11 mi3.11 mi25242103401034024352(Top 86%)9871(Top 81%)9871(Top 4446%)
10K6.21 mi3.10 mi25039+20310252+8810252+8824852(Top 87%)10152(Top 83%)10152(Top 4573%)
15K9.32 mi3.11 mi24812+22710120+13210120+13224352(Top 86%)9871(Top 81%)9871(Top 4446%)
20K12.43 mi3.11 mi24635+17710035+8510035+8524195(Top 85%)9828(Top 80%)9828(Top 4427%)
Half13.11 mi0.68 mi24550+859999+369999+3622484(Top 79%)8875(Top 73%)8875(Top 3998%)
25K15.53 mi2.42 mi24129+4219776+2239776+22321874(Top 77%)8586(Top 70%)8586(Top 3868%)
30K18.64 mi3.11 mi23618+5119519+2579519+25721270(Top 75%)8388(Top 69%)8388(Top 3778%)
20M20.00 mi1.36 mi23344+2749389+1309389+13019843(Top 70%)7701(Top 63%)7701(Top 3469%)
21M21.00 mi1.00 mi23179+1659320+699320+6920290(Top 71%)8073(Top 66%)8073(Top 3636%)
35K21.75 mi0.75 mi23051+1289264+569264+5619133(Top 67%)7528(Top 62%)7528(Top 3391%)
23M23.00 mi1.25 mi22780+2719145+1199145+11917354(Top 61%)6646(Top 54%)6646(Top 2994%)
24M24.00 mi1.00 mi22620+1609083+629083+6219406(Top 68%)7780(Top 64%)7780(Top 3505%)
40K24.85 mi0.85 mi22488+1329025+589025+5818875(Top 66%)7575(Top 62%)7575(Top 3412%)
25.2M25.20 mi0.35 mi22457+319017+89017+820169(Top 71%)8259(Top 68%)8259(Top 3720%)
Finish26.22 mi1.02 mi22303+1548947+708947+7017526(Top 62%)6848(Top 56%)6848(Top 3085%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
×21story building
+97ft-345ft

Overall

24352

Females

9871

F65-69

9871

5K→10K

3.1 - 6.2 mi

Top 87%
×5story building
+79ft-138ft

Overall

24852

Females

10152

F65-69

10152

10K→15K

6.2 - 9.3 mi

Top 86%
×3story building
+67ft-78ft

Overall

24352

Females

9871

F65-69

9871

15K→20K

9.3 - 12.4 mi

Top 85%
×5story building
+106ft-86ft

Overall

24195

Females

9828

F65-69

9828

20K→Half

12.4 - 13.1 mi

Top 79%
×2story building
+19ft-37ft

Overall

22484

Females

8875

F65-69

8875

Half→25K

13.1 - 15.5 mi

Top 77%
×4story building
+66ft-88ft

Overall

21874

Females

8586

F65-69

8586

25K→30K

15.5 - 18.6 mi

Top 75%
×9story building
+181ft-148ft

Overall

21270

Females

8388

F65-69

8388

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

19843

Females

7701

F65-69

7701

20M→21M

20.0 - 21.0 mi

Top 71%
×8story building
+106ft-24ft

Overall

20290

Females

8073

F65-69

8073

21M→35K

21.0 - 21.8 mi

Top 67%
×7story building
+17ft-86ft

Overall

19133

Females

7528

F65-69

7528

35K→23M

21.8 - 23.0 mi

Top 61%
×5story building
+23ft-63ft

Overall

17354

Females

6646

F65-69

6646

23M→24M

23.0 - 24.0 mi

Top 68%
×6story building
+12ft-82ft

Overall

19406

Females

7780

F65-69

7780

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

18875

Females

7575

F65-69

7575

40K→25.2M

24.9 - 25.2 mi

Top 71%
×1story
+13ft-16ft

Overall

20169

Females

8259

F65-69

8259

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2story building
+22ft-21ft

Overall

17526

Females

6848

F65-69

6848

Passing Analysis

Category:
Athletes Passed
3149
Passed By
210
Net Change
+2939
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25242
5K → 10K29087+203#25242#25039
10K → 15K26538+227#25039#24812
15K → 20K22851+177#24812#24635
20K → Half872+85#24635#24550
Half → 25K4243+421#24550#24129
25K → 30K5165+511#24129#23618
30K → 20M2762+274#23618#23344
20M → 21M1749+165#23344#23179
21M → 35K1302+128#23179#23051
35K → 23M2710+271#23051#22780
23M → 24M1622+160#22780#22620
24M → 40K1342+132#22620#22488
40K → 25.2M365+31#22488#22457
25.2M → Finish1562+154#22457#22303
TOTALS3149210+2939
📊

Passing Visuals

Category:
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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