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BOSTON MARATHON 2025

Carolyn Butterworth

Bib: 32210•F

MA

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 41%
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
7:40/mi
23:49
↑ 97↓ 3451.5%
10K· 6.21 mi
8:10/mi
49:11
↑ 79↓ 1380.4%
15K· 9.32 mi
8:44/mi
1:16:18
↑ 67↓ 78
20K· 12.43 mi
9:19/mi
1:45:15
↑ 106↓ 860.1%
Half· 13.11 mi
9:17/mi
1:51:35
↑ 19↓ 370.5%
25K· 15.53 mi
9:31/mi
2:14:40
↑ 66↓ 880.2%
30K· 18.64 mi
10:16/mi
2:46:34
↑ 181↓ 1480.2%
20M
10:58/mi
3:01:28
↑ 64↓ 500.2%
21M
11:53/mi
3:13:21
↑ 106↓ 241.6%
35K· 21.75 mi
10:54/mi
3:21:30
↑ 17↓ 861.7%
23M
11:07/mi
3:35:25
↑ 23↓ 630.6%
24M
10:37/mi
3:46:02
↓ 821.3%
40K· 24.85 mi
10:39/mi
3:55:08
↓ 200.3%
25.2M
11:59/mi
3:59:16
↑ 13↓ 160.2%
Finish· 26.22 mi
10:14/mi
4:09:42
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:35
Pace8:31 /mi
2nd Half
Distance13.11 mi
Time2:18:07
Pace10:32 /mi
📊Positive Split: 23.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:3823:497:4023:49
7:40
-
10K
6.21 mi12:09:0049:117:5525:22
8:10
+0:30
15K
9.32 mi12:36:071:16:188:1127:07
8:44
+0:34
20K
12.43 mi13:05:041:45:158:2828:57
9:19
+0:35
Half
13.11 mi13:11:241:51:358:316:20
9:17
-0:02
25K
15.53 mi13:34:292:14:408:4023:05
9:31
+0:14
30K
18.64 mi14:06:232:46:348:5631:54
10:16
+0:45
20M
20.00 mi14:21:173:01:289:0414:54
10:58
+0:42
21M
21.00 mi14:33:103:13:219:1211:53
11:53
+0:55
35K
21.75 mi14:41:193:21:309:168:09
10:54
-0:59
23M
23.00 mi14:55:143:35:259:2213:55
11:07
+0:13
24M
24.00 mi15:05:513:46:029:2510:37
10:37
-0:30
40K
24.85 mi15:14:573:55:089:289:06
10:39
+0:02
25.2M
25.20 mi15:19:053:59:169:304:08
11:59
+1:20
Finish
26.22 mi15:29:314:09:429:3210:26
10:14
-1:45

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

7:40 /mi

Average Pace

9:32 /mi

Slowest Pace

11:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:14:40

54% of race

Time at Steady Pace

1:02:03

25% of race

Time at Slower Pace

52:59

21% of race

Average Pace: 9:31 /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 mi11:43:3823:497:4023:49
7:40
#13687
10K
6.21 mi12:09:0049:117:5525:22
8:10
#15842
15K
9.32 mi12:36:071:16:188:1127:07
8:44
#17681
20K
12.43 mi13:05:041:45:158:2828:57
9:19
#19076
Half
13.11 mi13:11:241:51:358:316:20
9:17
#19336
25K
15.53 mi13:34:292:14:408:4023:05
9:31
#19886
30K
18.64 mi14:06:232:46:348:5631:54
10:16
#20554
20M
20.00 mi14:21:173:01:289:0414:54
10:58
#20903
21M
21.00 mi14:33:103:13:219:1211:53
11:53
#21155
35K
21.75 mi14:41:193:21:309:168:09
10:54
#21317
23M
23.00 mi14:55:143:35:259:2213:55
11:07
#21491
24M
24.00 mi15:05:513:46:029:2510:37
10:37
#21578
40K
24.85 mi15:14:573:55:089:289:06
10:39
#21596
25.2M
25.20 mi15:19:053:59:169:304:08
11:59
#21632
Finish
26.22 mi15:29:314:09:429:3210:26
10:14
#21703
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi136873707370720656(Top 73%)7811(Top 64%)7811(Top 1252%)
10K6.21 mi3.10 mi15842-21555047-13405047-134017674(Top 62%)6106(Top 50%)6106(Top 979%)
15K9.32 mi3.11 mi17681-18396134-10876134-108720656(Top 73%)7811(Top 64%)7811(Top 1252%)
20K12.43 mi3.11 mi19076-13956947-8136947-81322331(Top 79%)8771(Top 72%)8771(Top 1406%)
Half13.11 mi0.68 mi19336-2607103-1567103-15622912(Top 81%)9090(Top 74%)9090(Top 1457%)
25K15.53 mi2.42 mi19886-5507417-3147417-31421934(Top 77%)8616(Top 70%)8616(Top 1381%)
30K18.64 mi3.11 mi20554-6687840-4237840-42322359(Top 79%)8975(Top 73%)8975(Top 1438%)
20M20.00 mi1.36 mi20903-3498046-2068046-20623518(Top 83%)9692(Top 79%)9692(Top 1553%)
21M21.00 mi1.00 mi21155-2528205-1598205-15923388(Top 82%)9705(Top 79%)9705(Top 1555%)
35K21.75 mi0.75 mi21317-1628300-958300-9523995(Top 84%)10052(Top 82%)10052(Top 1611%)
23M23.00 mi1.25 mi21491-1748426-1268426-12623493(Top 83%)9841(Top 80%)9841(Top 1577%)
24M24.00 mi1.00 mi21578-878496-708496-7023122(Top 81%)9692(Top 79%)9692(Top 1553%)
40K24.85 mi0.85 mi21596-188530-348530-3422310(Top 79%)9364(Top 77%)9364(Top 1501%)
25.2M25.20 mi0.35 mi21632-368564-348564-3423215(Top 82%)9766(Top 80%)9766(Top 1565%)
Finish26.22 mi1.02 mi21703-718617-538617-5323641(Top 83%)9995(Top 82%)9995(Top 1602%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21story building
+97ft-345ft

Overall

20656

Females

7811

F60-64

7811

5K→10K

3.1 - 6.2 mi

Top 62%
×5story building
+79ft-138ft

Overall

17674

Females

6106

F60-64

6106

10K→15K

6.2 - 9.3 mi

Top 73%
×3story building
+67ft-78ft

Overall

20656

Females

7811

F60-64

7811

15K→20K

9.3 - 12.4 mi

Top 79%
×5story building
+106ft-86ft

Overall

22331

Females

8771

F60-64

8771

20K→Half

12.4 - 13.1 mi

Top 81%
×2story building
+19ft-37ft

Overall

22912

Females

9090

F60-64

9090

Half→25K

13.1 - 15.5 mi

Top 77%
×4story building
+66ft-88ft

Overall

21934

Females

8616

F60-64

8616

25K→30K

15.5 - 18.6 mi

Top 79%
×9story building
+181ft-148ft

Overall

22359

Females

8975

F60-64

8975

30K→20M

18.6 - 20.0 mi

Top 83%
×5story building
+64ft-50ft

Overall

23518

Females

9692

F60-64

9692

20M→21M

20.0 - 21.0 mi

Top 82%
×8story building
+106ft-24ft

Overall

23388

Females

9705

F60-64

9705

21M→35K

21.0 - 21.8 mi

Top 84%
×7story building
+17ft-86ft

Overall

23995

Females

10052

F60-64

10052

35K→23M

21.8 - 23.0 mi

Top 83%
×5story building
+23ft-63ft

Overall

23493

Females

9841

F60-64

9841

23M→24M

23.0 - 24.0 mi

Top 81%
×6story building
+12ft-82ft

Overall

23122

Females

9692

F60-64

9692

24M→40K

24.0 - 24.9 mi

Top 79%
×1story
+6ft-20ft

Overall

22310

Females

9364

F60-64

9364

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1story
+13ft-16ft

Overall

23215

Females

9766

F60-64

9766

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2story building
+22ft-21ft

Overall

23641

Females

9995

F60-64

9995

Passing Analysis

Category:
Athletes Passed
447
Passed By
8463
Net Change
-8016
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13687
5K → 10K182173-2155#13687#15842
10K → 15K171856-1839#15842#17681
15K → 20K191414-1395#17681#19076
20K → Half4264-260#19076#19336
Half → 25K51601-550#19336#19886
25K → 30K82750-668#19886#20554
30K → 20M34383-349#20554#20903
20M → 21M30282-252#20903#21155
21M → 35K19181-162#21155#21317
35K → 23M53227-174#21317#21491
23M → 24M30117-87#21491#21578
24M → 40K5169-18#21578#21596
40K → 25.2M1450-36#21596#21632
25.2M → Finish2596-71#21632#21703
TOTALS4478463-8016
📊

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