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BOSTON MARATHON 2025

Karen Flynn

Bib: 25209•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F60-64)
#0 / 624
Top 48%
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
9:28/mi
29:26
↑ 97↓ 3451.5%
10K· 6.21 mi
9:27/mi
58:47
↑ 79↓ 1380.4%
15K· 9.32 mi
9:34/mi
1:28:31
↑ 67↓ 78
20K· 12.43 mi
9:42/mi
1:58:39
↑ 106↓ 860.1%
Half· 13.11 mi
9:33/mi
2:05:10
↑ 19↓ 370.5%
25K· 15.53 mi
10:03/mi
2:29:33
↑ 66↓ 880.2%
30K· 18.64 mi
10:15/mi
3:01:24
↑ 181↓ 1480.2%
20M
9:39/mi
3:14:31
↑ 64↓ 500.2%
21M
10:29/mi
3:25:00
↑ 106↓ 241.6%
35K· 21.75 mi
9:00/mi
3:31:44
↑ 17↓ 861.7%
23M
9:54/mi
3:44:08
↑ 23↓ 630.6%
24M
9:31/mi
3:53:39
↓ 821.3%
40K· 24.85 mi
9:39/mi
4:01:54
↓ 200.3%
25.2M
10:32/mi
4:05:32
↑ 13↓ 160.2%
Finish· 26.22 mi
8:57/mi
4:14:39
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:05:10
Pace9:33 /mi
2nd Half
Distance13.11 mi
Time2:09:29
Pace9:53 /mi
📊Positive Split: 3.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:30:3629:269:2829:26
9:28
-
10K
6.21 mi11:59:5758:479:2829:21
9:27
-0:01
15K
9.32 mi12:29:411:28:319:3029:44
9:34
+0:07
20K
12.43 mi12:59:491:58:399:3330:08
9:42
+0:08
Half
13.11 mi13:06:202:05:109:336:31
9:33
-0:09
25K
15.53 mi13:30:432:29:339:3824:23
10:03
+0:30
30K
18.64 mi14:02:343:01:249:4431:51
10:15
+0:12
20M
20.00 mi14:15:413:14:319:4413:07
9:39
-0:36
21M
21.00 mi14:26:103:25:009:4610:29
10:29
+0:50
35K
21.75 mi14:32:543:31:449:446:44
9:00
-1:29
23M
23.00 mi14:45:183:44:089:4512:24
9:54
+0:54
24M
24.00 mi14:54:493:53:399:449:31
9:31
-0:23
40K
24.85 mi15:03:044:01:549:448:15
9:39
+0:08
25.2M
25.20 mi15:06:424:05:329:453:38
10:32
+0:53
Finish
26.22 mi15:15:494:14:399:439:07
8:57
-1:35

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

8:57 /mi

Average Pace

9:43 /mi

Slowest Pace

10:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:51:54

68% of race

Time at Steady Pace

1:22:45

32% of race

Time at Slower Pace

0:00

0% 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 mi11:30:3629:269:2829:26
9:28
#24176
10K
6.21 mi11:59:5758:479:2829:21
9:27
#24076
15K
9.32 mi12:29:411:28:319:3029:44
9:34
#24020
20K
12.43 mi12:59:491:58:399:3330:08
9:42
#23871
Half
13.11 mi13:06:202:05:109:336:31
9:33
#23864
25K
15.53 mi13:30:432:29:339:3824:23
10:03
#23763
30K
18.64 mi14:02:343:01:249:4431:51
10:15
#23484
20M
20.00 mi14:15:413:14:319:4413:07
9:39
#23219
21M
21.00 mi14:26:103:25:009:4610:29
10:29
#23045
35K
21.75 mi14:32:543:31:449:446:44
9:00
#22905
23M
23.00 mi14:45:183:44:089:4512:24
9:54
#22747
24M
24.00 mi14:54:493:53:399:449:31
9:31
#22590
40K
24.85 mi15:03:044:01:549:448:15
9:39
#22468
25.2M
25.20 mi15:06:424:05:329:453:38
10:32
#22424
Finish
26.22 mi15:15:494:14:399:439:07
8:57
#22307
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi241769784978423930(Top 84%)9624(Top 79%)9624(Top 1542%)
10K6.21 mi3.10 mi24076+1009726+589726+5823974(Top 84%)9665(Top 79%)9665(Top 1549%)
15K9.32 mi3.11 mi24020+569689+379689+3723930(Top 84%)9624(Top 79%)9624(Top 1542%)
20K12.43 mi3.11 mi23871+1499621+689621+6823481(Top 83%)9409(Top 77%)9409(Top 1508%)
Half13.11 mi0.68 mi23864+79621962123718(Top 84%)9541(Top 78%)9541(Top 1529%)
25K15.53 mi2.42 mi23763+1019563+589563+5823400(Top 82%)9423(Top 77%)9423(Top 1510%)
30K18.64 mi3.11 mi23484+2799450+1139450+11322322(Top 79%)8955(Top 73%)8955(Top 1435%)
20M20.00 mi1.36 mi23219+2659324+1269324+12619801(Top 70%)7681(Top 63%)7681(Top 1231%)
21M21.00 mi1.00 mi23045+1749252+729252+7219986(Top 70%)7908(Top 65%)7908(Top 1267%)
35K21.75 mi0.75 mi22905+1409187+659187+6518289(Top 64%)7081(Top 58%)7081(Top 1135%)
23M23.00 mi1.25 mi22747+1589125+629125+6220192(Top 71%)8153(Top 67%)8153(Top 1307%)
24M24.00 mi1.00 mi22590+1579069+569069+5619698(Top 69%)7937(Top 65%)7937(Top 1272%)
40K24.85 mi0.85 mi22468+1229012+579012+5719306(Top 68%)7797(Top 64%)7797(Top 1250%)
25.2M25.20 mi0.35 mi22424+449002+109002+1019209(Top 68%)7764(Top 63%)7764(Top 1244%)
Finish26.22 mi1.02 mi22307+1178948+548948+5418803(Top 66%)7499(Top 61%)7499(Top 1202%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 84%
×21story building
+97ft-345ft

Overall

23930

Females

9624

F60-64

9624

5K→10K

3.1 - 6.2 mi

Top 84%
×5story building
+79ft-138ft

Overall

23974

Females

9665

F60-64

9665

10K→15K

6.2 - 9.3 mi

Top 84%
×3story building
+67ft-78ft

Overall

23930

Females

9624

F60-64

9624

15K→20K

9.3 - 12.4 mi

Top 83%
×5story building
+106ft-86ft

Overall

23481

Females

9409

F60-64

9409

20K→Half

12.4 - 13.1 mi

Top 84%
×2story building
+19ft-37ft

Overall

23718

Females

9541

F60-64

9541

Half→25K

13.1 - 15.5 mi

Top 82%
×4story building
+66ft-88ft

Overall

23400

Females

9423

F60-64

9423

25K→30K

15.5 - 18.6 mi

Top 79%
×9story building
+181ft-148ft

Overall

22322

Females

8955

F60-64

8955

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

19801

Females

7681

F60-64

7681

20M→21M

20.0 - 21.0 mi

Top 70%
×8story building
+106ft-24ft

Overall

19986

Females

7908

F60-64

7908

21M→35K

21.0 - 21.8 mi

Top 64%
×7story building
+17ft-86ft

Overall

18289

Females

7081

F60-64

7081

35K→23M

21.8 - 23.0 mi

Top 71%
×5story building
+23ft-63ft

Overall

20192

Females

8153

F60-64

8153

23M→24M

23.0 - 24.0 mi

Top 69%
×6story building
+12ft-82ft

Overall

19698

Females

7937

F60-64

7937

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

19306

Females

7797

F60-64

7797

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

19209

Females

7764

F60-64

7764

25.2M→Finish

25.2 - 26.2 mi

Top 66%
×2story building
+22ft-21ft

Overall

18803

Females

7499

F60-64

7499

Passing Analysis

Category:
Athletes Passed
2384
Passed By
515
Net Change
+1869
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24176
5K → 10K286186+100#24176#24076
10K → 15K172116+56#24076#24020
15K → 20K21768+149#24020#23871
20K → Half2114+7#23871#23864
Half → 25K16766+101#23864#23763
25K → 30K32142+279#23763#23484
30K → 20M2661+265#23484#23219
20M → 21M1784+174#23219#23045
21M → 35K1411+140#23045#22905
35K → 23M1646+158#22905#22747
23M → 24M1592+157#22747#22590
24M → 40K1264+122#22590#22468
40K → 25.2M451+44#22468#22424
25.2M → Finish1214+117#22424#22307
TOTALS2384515+1869
📊

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