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BOSTON MARATHON 2025

Louisa Dunk

Bib: 24566•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F55-59)
#0 / 994
Top 49%
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
9:13/mi
28:39
↑ 97↓ 3451.5%
10K· 6.21 mi
9:01/mi
56:40
↑ 79↓ 1380.4%
15K· 9.32 mi
8:50/mi
1:24:08
↑ 67↓ 78
20K· 12.43 mi
8:55/mi
1:51:49
↑ 106↓ 860.1%
Half· 13.11 mi
8:59/mi
1:57:57
↑ 19↓ 370.5%
25K· 15.53 mi
8:59/mi
2:19:44
↑ 66↓ 880.2%
30K· 18.64 mi
9:15/mi
2:48:29
↑ 181↓ 1480.2%
20M
9:34/mi
3:01:29
↑ 64↓ 500.2%
21M
10:06/mi
3:11:35
↑ 106↓ 241.6%
35K· 21.75 mi
9:04/mi
3:18:22
↑ 17↓ 861.7%
23M
9:29/mi
3:30:14
↑ 23↓ 630.6%
24M
9:39/mi
3:39:53
↓ 821.3%
40K· 24.85 mi
10:07/mi
3:48:32
↓ 200.3%
25.2M
11:01/mi
3:52:20
↑ 13↓ 160.2%
Finish· 26.22 mi
9:44/mi
4:02:15
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:57
Pace9:00 /mi
2nd Half
Distance13.11 mi
Time2:04:18
Pace9:29 /mi
📊Positive Split: 5.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:28:4528:399:1328:39
9:13
-
10K
6.21 mi11:56:4656:409:0728:01
9:01
-0:12
15K
9.32 mi12:24:141:24:089:0227:28
8:50
-0:11
20K
12.43 mi12:51:551:51:499:0027:41
8:55
+0:05
Half
13.11 mi12:58:031:57:579:006:08
8:59
+0:04
25K
15.53 mi13:19:502:19:449:0021:47
8:59
0:00
30K
18.64 mi13:48:352:48:299:0228:45
9:15
+0:16
20M
20.00 mi14:01:353:01:299:0413:00
9:34
+0:19
21M
21.00 mi14:11:413:11:359:0710:06
10:06
+0:32
35K
21.75 mi14:18:283:18:229:076:47
9:04
-1:02
23M
23.00 mi14:30:203:30:149:0811:52
9:29
+0:25
24M
24.00 mi14:39:593:39:539:109:39
9:39
+0:10
40K
24.85 mi14:48:383:48:329:128:39
10:07
+0:28
25.2M
25.20 mi14:52:263:52:209:133:48
11:01
+0:54
Finish
26.22 mi15:02:214:02:159:159:55
9:44
-1:17

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

8:50 /mi

Average Pace

9:15 /mi

Slowest Pace

11:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

55:09

23% of race

Time at Steady Pace

2:11:59

54% of race

Time at Slower Pace

55:07

23% of race

Average Pace: 9:14 /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 mi11:28:4528:399:1328:39
9:13
#23300
10K
6.21 mi11:56:4656:409:0728:01
9:01
#22894
15K
9.32 mi12:24:141:24:089:0227:28
8:50
#22398
20K
12.43 mi12:51:551:51:499:0027:41
8:55
#21923
Half
13.11 mi12:58:031:57:579:006:08
8:59
#21912
25K
15.53 mi13:19:502:19:449:0021:47
8:59
#21530
30K
18.64 mi13:48:352:48:299:0228:45
9:15
#21052
20M
20.00 mi14:01:353:01:299:0413:00
9:34
#20906
21M
21.00 mi14:11:413:11:359:0710:06
10:06
#20740
35K
21.75 mi14:18:283:18:229:076:47
9:04
#20667
23M
23.00 mi14:30:203:30:149:0811:52
9:29
#20555
24M
24.00 mi14:39:593:39:539:109:39
9:39
#20563
40K
24.85 mi14:48:383:48:329:128:39
10:07
#20599
25.2M
25.20 mi14:52:263:52:209:133:48
11:01
#20614
Finish
26.22 mi15:02:214:02:159:159:55
9:44
#20665
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi233009329932921247(Top 75%)8136(Top 67%)8136(Top 819%)
10K6.21 mi3.10 mi22894+4069094+2359094+23522463(Top 79%)8841(Top 72%)8841(Top 889%)
15K9.32 mi3.11 mi22398+4968806+2888806+28821247(Top 75%)8136(Top 67%)8136(Top 819%)
20K12.43 mi3.11 mi21923+4758561+2458561+24520540(Top 72%)7797(Top 64%)7797(Top 784%)
Half13.11 mi0.68 mi21912+118555+68555+621796(Top 77%)8468(Top 69%)8468(Top 852%)
25K15.53 mi2.42 mi21530+3828341+2148341+21419841(Top 70%)7443(Top 61%)7443(Top 749%)
30K18.64 mi3.11 mi21052+4788117+2248117+22418924(Top 67%)7082(Top 58%)7082(Top 712%)
20M20.00 mi1.36 mi20906+1468047+708047+7019496(Top 69%)7524(Top 62%)7524(Top 757%)
21M21.00 mi1.00 mi20740+1667978+697978+6918698(Top 66%)7180(Top 59%)7180(Top 722%)
35K21.75 mi0.75 mi20667+737958+207958+2018612(Top 66%)7266(Top 59%)7266(Top 731%)
23M23.00 mi1.25 mi20555+1127920+387920+3818614(Top 66%)7307(Top 60%)7307(Top 735%)
24M24.00 mi1.00 mi20563-87939-197939-1920208(Top 71%)8192(Top 67%)8192(Top 824%)
40K24.85 mi0.85 mi20599-367982-437982-4320844(Top 73%)8579(Top 70%)8579(Top 863%)
25.2M25.20 mi0.35 mi20614-157996-147996-1420735(Top 73%)8519(Top 70%)8519(Top 857%)
Finish26.22 mi1.02 mi20665-518037-418037-4122034(Top 78%)9171(Top 75%)9171(Top 923%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21story building
+97ft-345ft

Overall

21247

Females

8136

F55-59

8136

5K→10K

3.1 - 6.2 mi

Top 79%
×5story building
+79ft-138ft

Overall

22463

Females

8841

F55-59

8841

10K→15K

6.2 - 9.3 mi

Top 75%
×3story building
+67ft-78ft

Overall

21247

Females

8136

F55-59

8136

15K→20K

9.3 - 12.4 mi

Top 72%
×5story building
+106ft-86ft

Overall

20540

Females

7797

F55-59

7797

20K→Half

12.4 - 13.1 mi

Top 77%
×2story building
+19ft-37ft

Overall

21796

Females

8468

F55-59

8468

Half→25K

13.1 - 15.5 mi

Top 70%
×4story building
+66ft-88ft

Overall

19841

Females

7443

F55-59

7443

25K→30K

15.5 - 18.6 mi

Top 67%
×9story building
+181ft-148ft

Overall

18924

Females

7082

F55-59

7082

30K→20M

18.6 - 20.0 mi

Top 69%
×5story building
+64ft-50ft

Overall

19496

Females

7524

F55-59

7524

20M→21M

20.0 - 21.0 mi

Top 66%
×8story building
+106ft-24ft

Overall

18698

Females

7180

F55-59

7180

21M→35K

21.0 - 21.8 mi

Top 66%
×7story building
+17ft-86ft

Overall

18612

Females

7266

F55-59

7266

35K→23M

21.8 - 23.0 mi

Top 66%
×5story building
+23ft-63ft

Overall

18614

Females

7307

F55-59

7307

23M→24M

23.0 - 24.0 mi

Top 71%
×6story building
+12ft-82ft

Overall

20208

Females

8192

F55-59

8192

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

20844

Females

8579

F55-59

8579

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

20735

Females

8519

F55-59

8519

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2story building
+22ft-21ft

Overall

22034

Females

9171

F55-59

9171

Passing Analysis

Category:
Athletes Passed
3163
Passed By
528
Net Change
+2635
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23300
5K → 10K48579+406#23300#22894
10K → 15K51822+496#22894#22398
15K → 20K4827+475#22398#21923
20K → Half4433+11#21923#21912
Half → 25K39311+382#21912#21530
25K → 30K49517+478#21530#21052
30K → 20M17630+146#21052#20906
20M → 21M18923+166#20906#20740
21M → 35K9421+73#20740#20667
35K → 23M14129+112#20667#20555
23M → 24M5260-8#20555#20563
24M → 40K4783-36#20563#20599
40K → 25.2M1934-15#20599#20614
25.2M → Finish2879-51#20614#20665
TOTALS3163528+2635
📊

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