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BOSTON MARATHON 2025

Zachary Cook

Bib: 27587•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M40-44)
#0 / 2247
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:56
Rank: #18992
Start → 5K
25:56 | 8:21/mi
10K· 6.21 mi
51:20
Rank: #18378 (+614)
5K → 10K
25:24 | 8:11/mi
15K· 9.32 mi
1:17:07
Rank: #18230 (+148)
10K → 15K
25:47 | 8:18/mi
20K· 12.43 mi
1:43:18
Rank: #18068 (+162)
15K → 20K
26:11 | 8:26/mi
Half· 13.11 mi
1:48:57
Rank: #18041 (+27)
20K → Half
5:39 | 8:17/mi
25K· 15.53 mi
2:11:32
Rank: #18706 (-665)
Half → 25K
22:35 | 9:19/mi
30K· 18.64 mi
2:39:07
Rank: #18357 (+349)
25K → 30K
27:35 | 8:53/mi
20M
2:51:24
Rank: #18227 (+130)
30K → 20M
12:17 | 9:02/mi
21M
3:00:39
Rank: #18026 (+201)
20M → 21M
9:15 | 9:15/mi
35K· 21.75 mi
3:06:56
Rank: #17889 (+137)
21M → 35K
6:17 | 8:24/mi
23M
3:17:33
Rank: #17592 (+297)
35K → 23M
10:37 | 8:29/mi
24M
3:26:05
Rank: #17455 (+137)
23M → 24M
8:32 | 8:32/mi
40K· 24.85 mi
3:33:20
Rank: #17288 (+167)
24M → 40K
7:15 | 8:29/mi
25.2M
3:36:27
Rank: #17209 (+79)
40K → 25.2M
3:07 | 9:02/mi
Finish· 26.22 mi
3:44:38
Rank: #17037 (+172)
25.2M → Finish
8:11 | 8:02/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:57
Pace8:19 /mi
2nd Half
Distance13.11 mi
Time1:55:41
Pace8:49 /mi
📊Positive Split: 6.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:41:2625:568:2125:56
8:21
-
10K
6.21 mi12:06:5051:208:1625:24
8:11
-0:10
15K
9.32 mi12:32:371:17:078:1625:47
8:18
+0:07
20K
12.43 mi12:58:481:43:188:1926:11
8:26
+0:08
Half
13.11 mi13:04:271:48:578:195:39
8:17
-0:09
25K
15.53 mi13:27:022:11:328:2822:35
9:19
+1:02
30K
18.64 mi13:54:372:39:078:3227:35
8:53
-0:26
20M
20.00 mi14:06:542:51:248:3412:17
9:02
+0:09
21M
21.00 mi14:16:093:00:398:369:15
9:15
+0:13
35K
21.75 mi14:22:263:06:568:366:17
8:24
-0:51
23M
23.00 mi14:33:033:17:338:3510:37
8:29
+0:05
24M
24.00 mi14:41:353:26:058:358:32
8:32
+0:03
40K
24.85 mi14:48:503:33:208:357:15
8:29
-0:03
25.2M
25.20 mi14:51:573:36:278:353:07
9:02
+0:33
Finish
26.22 mi15:00:083:44:388:348:11
8:02
-1:00

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

8:02 /mi

Average Pace

8:34 /mi

Slowest Pace

9:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:29:49

67% of race

Time at Steady Pace

1:14:49

33% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:34 /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 mi11:41:2625:568:2125:56
8:21
#18992
10K
6.21 mi12:06:5051:208:1625:24
8:11
#18378
15K
9.32 mi12:32:371:17:078:1625:47
8:18
#18230
20K
12.43 mi12:58:481:43:188:1926:11
8:26
#18068
Half
13.11 mi13:04:271:48:578:195:39
8:17
#18041
25K
15.53 mi13:27:022:11:328:2822:35
9:19
#18706
30K
18.64 mi13:54:372:39:078:3227:35
8:53
#18357
20M
20.00 mi14:06:542:51:248:3412:17
9:02
#18227
21M
21.00 mi14:16:093:00:398:369:15
9:15
#18026
35K
21.75 mi14:22:263:06:568:366:17
8:24
#17889
23M
23.00 mi14:33:033:17:338:3510:37
8:29
#17592
24M
24.00 mi14:41:353:26:058:358:32
8:32
#17455
40K
24.85 mi14:48:503:33:208:357:15
8:29
#17288
25.2M
25.20 mi14:51:573:36:278:353:07
9:02
#17209
Finish
26.22 mi15:00:083:44:388:348:11
8:02
#17037
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi18992120331203318031(Top 63%)11642(Top 72%)11642(Top 518%)
10K6.21 mi3.10 mi18378+61411776+25711776+25717711(Top 62%)11534(Top 72%)11534(Top 513%)
15K9.32 mi3.11 mi18230+14811714+6211714+6218031(Top 63%)11642(Top 72%)11642(Top 518%)
20K12.43 mi3.11 mi18068+16211644+7011644+7017708(Top 62%)11486(Top 71%)11486(Top 511%)
Half13.11 mi0.68 mi18041+2711625+1911625+1917783(Top 63%)11528(Top 72%)11528(Top 513%)
25K15.53 mi2.42 mi18706-66511902-27711902-27721229(Top 75%)12953(Top 80%)12953(Top 576%)
30K18.64 mi3.11 mi18357+34911724+17811724+17817027(Top 60%)10937(Top 68%)10937(Top 487%)
20M20.00 mi1.36 mi18227+13011630+9411630+9416994(Top 60%)10820(Top 67%)10820(Top 482%)
21M21.00 mi1.00 mi18026+20111524+10611524+10614886(Top 52%)9741(Top 60%)9741(Top 434%)
35K21.75 mi0.75 mi17889+13711457+6711457+6714844(Top 52%)9661(Top 60%)9661(Top 430%)
23M23.00 mi1.25 mi17592+29711270+18711270+18713177(Top 46%)8787(Top 55%)8787(Top 391%)
24M24.00 mi1.00 mi17455+13711186+8411186+8414722(Top 52%)9465(Top 59%)9465(Top 421%)
40K24.85 mi0.85 mi17288+16711090+9611090+9613297(Top 47%)8672(Top 54%)8672(Top 386%)
25.2M25.20 mi0.35 mi17209+7911043+4711043+4712007(Top 42%)8018(Top 50%)8018(Top 357%)
Finish26.22 mi1.02 mi17037+17210947+9610947+9613072(Top 46%)8573(Top 53%)8573(Top 382%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21stories
+97ft-345ft

Overall

18031

Males

11642

M40-44

11642

5K→10K

3.1 - 6.2 mi

Top 62%
×5stories
+79ft-138ft

Overall

17711

Males

11534

M40-44

11534

10K→15K

6.2 - 9.3 mi

Top 63%
×3stories
+67ft-78ft

Overall

18031

Males

11642

M40-44

11642

15K→20K

9.3 - 12.4 mi

Top 62%
×5stories
+106ft-86ft

Overall

17708

Males

11486

M40-44

11486

20K→Half

12.4 - 13.1 mi

Top 63%
×2stories
+19ft-37ft

Overall

17783

Males

11528

M40-44

11528

Half→25K

13.1 - 15.5 mi

Top 75%
×4stories
+66ft-88ft

Overall

21229

Males

12953

M40-44

12953

25K→30K

15.5 - 18.6 mi

Top 60%
×9stories
+181ft-148ft

Overall

17027

Males

10937

M40-44

10937

30K→20M

18.6 - 20.0 mi

Top 60%
×5stories
+64ft-50ft

Overall

16994

Males

10820

M40-44

10820

20M→21M

20.0 - 21.0 mi

Top 52%
×8stories
+106ft-24ft

Overall

14886

Males

9741

M40-44

9741

21M→35K

21.0 - 21.8 mi

Top 52%
×7stories
+17ft-86ft

Overall

14844

Males

9661

M40-44

9661

35K→23M

21.8 - 23.0 mi

Top 46%
×5stories
+23ft-63ft

Overall

13177

Males

8787

M40-44

8787

23M→24M

23.0 - 24.0 mi

Top 52%
×6stories
+12ft-82ft

Overall

14722

Males

9465

M40-44

9465

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

13297

Males

8672

M40-44

8672

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

12007

Males

8018

M40-44

8018

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2stories
+22ft-21ft

Overall

13072

Males

8573

M40-44

8573

Passing Analysis

Category:
Athletes Passed
3167
Passed By
1212
Net Change
+1955
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18992
5K → 10K68874+614#18992#18378
10K → 15K262114+148#18378#18230
15K → 20K264102+162#18230#18068
20K → Half5124+27#18068#18041
Half → 25K39704-665#18041#18706
25K → 30K42879+349#18706#18357
30K → 20M17949+130#18357#18227
20M → 21M21615+201#18227#18026
21M → 35K1447+137#18026#17889
35K → 23M3014+297#17889#17592
23M → 24M15720+137#17592#17455
24M → 40K1747+167#17455#17288
40K → 25.2M845+79#17288#17209
25.2M → Finish1808+172#17209#17037
TOTALS31671212+1955
📊

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