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BOSTON MARATHON 2025

Stacy Cook

Bib: 24422•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 33%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:16
Rank: #19633
Start → 5K
26:16 | 8:27/mi
10K· 6.21 mi
52:14
Rank: #19281 (+352)
5K → 10K
25:58 | 8:21/mi
15K· 9.32 mi
1:18:18
Rank: #19034 (+247)
10K → 15K
26:04 | 8:23/mi
20K· 12.43 mi
1:45:50
Rank: #19368 (-334)
15K → 20K
27:32 | 8:52/mi
Half· 13.11 mi
1:51:39
Rank: #19374 (-6)
20K → Half
5:49 | 8:32/mi
25K· 15.53 mi
2:14:46
Rank: #19922 (-548)
Half → 25K
23:07 | 9:32/mi
30K· 18.64 mi
2:47:52
Rank: #20896 (-974)
25K → 30K
33:06 | 10:39/mi
20M
3:01:09
Rank: #20833 (+63)
30K → 20M
13:17 | 9:46/mi
21M
3:12:39
Rank: #20995 (-162)
20M → 21M
11:30 | 11:30/mi
35K· 21.75 mi
3:19:54
Rank: #20996 (-1)
21M → 35K
7:15 | 9:41/mi
23M
3:32:55
Rank: #21054 (-58)
35K → 23M
13:01 | 10:24/mi
24M
3:42:48
Rank: #21049 (+5)
23M → 24M
9:53 | 9:53/mi
40K· 24.85 mi
3:51:45
Rank: #21106 (-57)
24M → 40K
8:57 | 10:28/mi
25.2M
3:56:12
Rank: #21187 (-81)
40K → 25.2M
4:27 | 12:54/mi
Finish· 26.22 mi
4:05:32
Rank: #21126 (+61)
25.2M → Finish
9:20 | 9:10/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:39
Pace8:31 /mi
2nd Half
Distance13.11 mi
Time2:13:53
Pace10:13 /mi
📊Positive Split: 19.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:5526:168:2726:16
8:27
-
10K
6.21 mi11:52:5352:148:2425:58
8:21
-0:06
15K
9.32 mi12:18:571:18:188:2426:04
8:23
+0:02
20K
12.43 mi12:46:291:45:508:3127:32
8:52
+0:29
Half
13.11 mi12:52:181:51:398:315:49
8:32
-0:20
25K
15.53 mi13:15:252:14:468:4123:07
9:32
+1:00
30K
18.64 mi13:48:312:47:529:0033:06
10:39
+1:07
20M
20.00 mi14:01:483:01:099:0313:17
9:46
-0:53
21M
21.00 mi14:13:183:12:399:1011:30
11:30
+1:44
35K
21.75 mi14:20:333:19:549:117:15
9:41
-1:49
23M
23.00 mi14:33:343:32:559:1513:01
10:24
+0:43
24M
24.00 mi14:43:273:42:489:179:53
9:53
-0:31
40K
24.85 mi14:52:243:51:459:198:57
10:28
+0:35
25.2M
25.20 mi14:56:513:56:129:224:27
12:54
+2:26
Finish
26.22 mi15:06:114:05:329:229:20
9:10
-3:44

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

8:21 /mi

Average Pace

9:22 /mi

Slowest Pace

12:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:51:39

45% of race

Time at Steady Pace

1:02:52

26% of race

Time at Slower Pace

1:11:01

29% of race

Average Pace: 9:22 /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 mi11:26:5526:168:2726:16
8:27
#19633
10K
6.21 mi11:52:5352:148:2425:58
8:21
#19281
15K
9.32 mi12:18:571:18:188:2426:04
8:23
#19034
20K
12.43 mi12:46:291:45:508:3127:32
8:52
#19368
Half
13.11 mi12:52:181:51:398:315:49
8:32
#19374
25K
15.53 mi13:15:252:14:468:4123:07
9:32
#19922
30K
18.64 mi13:48:312:47:529:0033:06
10:39
#20896
20M
20.00 mi14:01:483:01:099:0313:17
9:46
#20833
21M
21.00 mi14:13:183:12:399:1011:30
11:30
#20995
35K
21.75 mi14:20:333:19:549:117:15
9:41
#20996
23M
23.00 mi14:33:343:32:559:1513:01
10:24
#21054
24M
24.00 mi14:43:273:42:489:179:53
9:53
#21049
40K
24.85 mi14:52:243:51:459:198:57
10:28
#21106
25.2M
25.20 mi14:56:513:56:129:224:27
12:54
#21187
Finish
26.22 mi15:06:114:05:329:229:20
9:10
#21126
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi196337280728018653(Top 66%)6699(Top 55%)6699(Top 1074%)
10K6.21 mi3.10 mi19281+3527057+2237057+22318945(Top 67%)6853(Top 56%)6853(Top 1098%)
15K9.32 mi3.11 mi19034+2476934+1236934+12318653(Top 66%)6699(Top 55%)6699(Top 1074%)
20K12.43 mi3.11 mi19368-3347116-1827116-18220297(Top 71%)7649(Top 63%)7649(Top 1226%)
Half13.11 mi0.68 mi19374-67119-37119-319452(Top 68%)7173(Top 59%)7173(Top 1150%)
25K15.53 mi2.42 mi19922-5487437-3187437-31821980(Top 77%)8638(Top 71%)8638(Top 1384%)
30K18.64 mi3.11 mi20896-9748034-5978034-59723288(Top 82%)9484(Top 78%)9484(Top 1520%)
20M20.00 mi1.36 mi20833+638015+198015+1920226(Top 71%)7928(Top 65%)7928(Top 1271%)
21M21.00 mi1.00 mi20995-1628114-998114-9922616(Top 80%)9305(Top 76%)9305(Top 1491%)
35K21.75 mi0.75 mi20996-18134-208134-2020993(Top 74%)8497(Top 69%)8497(Top 1362%)
23M23.00 mi1.25 mi21054-588191-578191-5721725(Top 76%)8929(Top 73%)8929(Top 1431%)
24M24.00 mi1.00 mi21049+58219-288219-2821013(Top 74%)8606(Top 70%)8606(Top 1379%)
40K24.85 mi0.85 mi21106-578261-428261-4221842(Top 77%)9115(Top 75%)9115(Top 1461%)
25.2M25.20 mi0.35 mi21187-818309-488309-4824907(Top 88%)10629(Top 87%)10629(Top 1703%)
Finish26.22 mi1.02 mi21126+618291+188291+1819799(Top 70%)8038(Top 66%)8038(Top 1288%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21stories
+97ft-345ft

Overall

18653

Females

6699

F60-64

6699

5K→10K

3.1 - 6.2 mi

Top 67%
×5stories
+79ft-138ft

Overall

18945

Females

6853

F60-64

6853

10K→15K

6.2 - 9.3 mi

Top 66%
×3stories
+67ft-78ft

Overall

18653

Females

6699

F60-64

6699

15K→20K

9.3 - 12.4 mi

Top 71%
×5stories
+106ft-86ft

Overall

20297

Females

7649

F60-64

7649

20K→Half

12.4 - 13.1 mi

Top 68%
×2stories
+19ft-37ft

Overall

19452

Females

7173

F60-64

7173

Half→25K

13.1 - 15.5 mi

Top 77%
×4stories
+66ft-88ft

Overall

21980

Females

8638

F60-64

8638

25K→30K

15.5 - 18.6 mi

Top 82%
×9stories
+181ft-148ft

Overall

23288

Females

9484

F60-64

9484

30K→20M

18.6 - 20.0 mi

Top 71%
×5stories
+64ft-50ft

Overall

20226

Females

7928

F60-64

7928

20M→21M

20.0 - 21.0 mi

Top 80%
×8stories
+106ft-24ft

Overall

22616

Females

9305

F60-64

9305

21M→35K

21.0 - 21.8 mi

Top 74%
×7stories
+17ft-86ft

Overall

20993

Females

8497

F60-64

8497

35K→23M

21.8 - 23.0 mi

Top 76%
×5stories
+23ft-63ft

Overall

21725

Females

8929

F60-64

8929

23M→24M

23.0 - 24.0 mi

Top 74%
×6stories
+12ft-82ft

Overall

21013

Females

8606

F60-64

8606

24M→40K

24.0 - 24.9 mi

Top 77%
×1story
+6ft-20ft

Overall

21842

Females

9115

F60-64

9115

40K→25.2M

24.9 - 25.2 mi

Top 88%
×1story
+13ft-16ft

Overall

24907

Females

10629

F60-64

10629

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2stories
+22ft-21ft

Overall

19799

Females

8038

F60-64

8038

Passing Analysis

Category:
Athletes Passed
1542
Passed By
3035
Net Change
-1493
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19633
5K → 10K479127+352#19633#19281
10K → 15K33992+247#19281#19034
15K → 20K108442-334#19034#19368
20K → Half3137-6#19368#19374
Half → 25K50598-548#19374#19922
25K → 30K531027-974#19922#20896
30K → 20M13067+63#20896#20833
20M → 21M43205-162#20833#20995
21M → 35K6162-1#20995#20996
35K → 23M67125-58#20996#21054
23M → 24M6257+5#21054#21049
24M → 40K2784-57#21049#21106
40K → 25.2M1091-81#21106#21187
25.2M → Finish8221+61#21187#21126
TOTALS15423035-1493
📊

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