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BOSTON MARATHON 2025

Michael Zakosek

Bib: 10909•M

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 36%
Gender (Male)
#0 / 16105
Top 49%
Masters (Masters Men)
#0 / 10463
Top 38%
Division (M60-64)
#0 / 1259
Top 8%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:09
Rank: #8878
Start → 5K
22:09 | 7:08/mi
10K· 6.21 mi
44:23
Rank: #8969 (-91)
5K → 10K
22:14 | 7:09/mi
15K· 9.32 mi
1:06:59
Rank: #9221 (-252)
10K → 15K
22:36 | 7:16/mi
20K· 12.43 mi
1:30:32
Rank: #9735 (-514)
15K → 20K
23:33 | 7:35/mi
Half· 13.11 mi
1:35:30
Rank: #9739 (-4)
20K → Half
4:58 | 7:17/mi
25K· 15.53 mi
1:53:49
Rank: #9793 (-54)
Half → 25K
18:19 | 7:33/mi
30K· 18.64 mi
2:17:48
Rank: #9635 (+158)
25K → 30K
23:59 | 7:43/mi
20M
2:28:27
Rank: #9572 (+63)
30K → 20M
10:39 | 7:50/mi
21M
2:36:49
Rank: #9532 (+40)
20M → 21M
8:22 | 8:22/mi
35K· 21.75 mi
2:42:38
Rank: #9559 (-27)
21M → 35K
5:49 | 7:46/mi
23M
2:52:53
Rank: #9642 (-83)
35K → 23M
10:15 | 8:11/mi
24M
3:01:03
Rank: #9758 (-116)
23M → 24M
8:10 | 8:10/mi
40K· 24.85 mi
3:08:13
Rank: #9849 (-91)
24M → 40K
7:10 | 8:23/mi
25.2M
3:11:28
Rank: #9926 (-77)
40K → 25.2M
3:15 | 9:25/mi
Finish· 26.22 mi
3:19:56
Rank: #10123 (-197)
25.2M → Finish
8:28 | 8:19/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:30
Pace7:17 /mi
2nd Half
Distance13.11 mi
Time1:44:26
Pace7:58 /mi
📊Positive Split: 9.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:5422:097:0822:09
7:08
-
10K
6.21 mi11:11:0844:237:0922:14
7:09
+0:01
15K
9.32 mi11:33:441:06:597:1122:36
7:16
+0:07
20K
12.43 mi11:57:171:30:327:1723:33
7:35
+0:19
Half
13.11 mi12:02:151:35:307:174:58
7:17
-0:18
25K
15.53 mi12:20:341:53:497:2018:19
7:33
+0:16
30K
18.64 mi12:44:332:17:487:2423:59
7:43
+0:10
20M
20.00 mi12:55:122:28:277:2510:39
7:50
+0:07
21M
21.00 mi13:03:342:36:497:288:22
8:22
+0:32
35K
21.75 mi13:09:232:42:387:295:49
7:46
-0:36
23M
23.00 mi13:19:382:52:537:3110:15
8:11
+0:25
24M
24.00 mi13:27:483:01:037:338:10
8:10
-0:01
40K
24.85 mi13:34:583:08:137:347:10
8:23
+0:13
25.2M
25.20 mi13:38:133:11:287:363:15
9:25
+1:02
Finish
26.22 mi13:46:413:19:567:388:28
8:19
-1:06

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

7:08 /mi

Average Pace

7:38 /mi

Slowest Pace

9:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:11:57

36% of race

Time at Steady Pace

1:22:19

41% of race

Time at Slower Pace

45:40

23% of race

Average Pace: 7:38 /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 mi10:48:5422:097:0822:09
7:08
#8878
10K
6.21 mi11:11:0844:237:0922:14
7:09
#8969
15K
9.32 mi11:33:441:06:597:1122:36
7:16
#9221
20K
12.43 mi11:57:171:30:327:1723:33
7:35
#9735
Half
13.11 mi12:02:151:35:307:174:58
7:17
#9739
25K
15.53 mi12:20:341:53:497:2018:19
7:33
#9793
30K
18.64 mi12:44:332:17:487:2423:59
7:43
#9635
20M
20.00 mi12:55:122:28:277:2510:39
7:50
#9572
21M
21.00 mi13:03:342:36:497:288:22
8:22
#9532
35K
21.75 mi13:09:232:42:387:295:49
7:46
#9559
23M
23.00 mi13:19:382:52:537:3110:15
8:11
#9642
24M
24.00 mi13:27:483:01:037:338:10
8:10
#9758
40K
24.85 mi13:34:583:08:137:347:10
8:23
#9849
25.2M
25.20 mi13:38:133:11:287:363:15
9:25
#9926
Finish
26.22 mi13:46:413:19:567:388:28
8:19
#10123
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi8878753775379761(Top 34%)7955(Top 49%)7955(Top 632%)
10K6.21 mi3.10 mi8969-917577-407577-409123(Top 32%)7677(Top 48%)7677(Top 610%)
15K9.32 mi3.11 mi9221-2527711-1347711-1349761(Top 34%)7955(Top 49%)7955(Top 632%)
20K12.43 mi3.11 mi9735-5147960-2497960-24911420(Top 40%)8694(Top 54%)8694(Top 691%)
Half13.11 mi0.68 mi9739-47964-47964-49787(Top 34%)7915(Top 49%)7915(Top 629%)
25K15.53 mi2.42 mi9793-547961+37961+310384(Top 37%)8076(Top 50%)8076(Top 641%)
30K18.64 mi3.11 mi9635+1587812+1497812+1499322(Top 33%)7330(Top 46%)7330(Top 582%)
20M20.00 mi1.36 mi9572+637746+667746+669273(Top 33%)7149(Top 44%)7149(Top 568%)
21M21.00 mi1.00 mi9532+407694+527694+529624(Top 34%)7167(Top 45%)7167(Top 569%)
35K21.75 mi0.75 mi9559-277696-27696-210586(Top 37%)7655(Top 48%)7655(Top 608%)
23M23.00 mi1.25 mi9642-837694+27694+211263(Top 40%)7875(Top 49%)7875(Top 625%)
24M24.00 mi1.00 mi9758-1167709-157709-1512316(Top 43%)8324(Top 52%)8324(Top 661%)
40K24.85 mi0.85 mi9849-917718-97718-912639(Top 44%)8345(Top 52%)8345(Top 663%)
25.2M25.20 mi0.35 mi9926-777746-287746-2814057(Top 49%)8942(Top 56%)8942(Top 710%)
Finish26.22 mi1.02 mi10123-1977813-677813-6714930(Top 53%)9440(Top 59%)9440(Top 750%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21stories
+97ft-345ft

Overall

9761

Males

7955

M60-64

7955

5K→10K

3.1 - 6.2 mi

Top 32%
×5stories
+79ft-138ft

Overall

9123

Males

7677

M60-64

7677

10K→15K

6.2 - 9.3 mi

Top 34%
×3stories
+67ft-78ft

Overall

9761

Males

7955

M60-64

7955

15K→20K

9.3 - 12.4 mi

Top 40%
×5stories
+106ft-86ft

Overall

11420

Males

8694

M60-64

8694

20K→Half

12.4 - 13.1 mi

Top 34%
×2stories
+19ft-37ft

Overall

9787

Males

7915

M60-64

7915

Half→25K

13.1 - 15.5 mi

Top 37%
×4stories
+66ft-88ft

Overall

10384

Males

8076

M60-64

8076

25K→30K

15.5 - 18.6 mi

Top 33%
×9stories
+181ft-148ft

Overall

9322

Males

7330

M60-64

7330

30K→20M

18.6 - 20.0 mi

Top 33%
×5stories
+64ft-50ft

Overall

9273

Males

7149

M60-64

7149

20M→21M

20.0 - 21.0 mi

Top 34%
×8stories
+106ft-24ft

Overall

9624

Males

7167

M60-64

7167

21M→35K

21.0 - 21.8 mi

Top 37%
×7stories
+17ft-86ft

Overall

10586

Males

7655

M60-64

7655

35K→23M

21.8 - 23.0 mi

Top 40%
×5stories
+23ft-63ft

Overall

11263

Males

7875

M60-64

7875

23M→24M

23.0 - 24.0 mi

Top 43%
×6stories
+12ft-82ft

Overall

12316

Males

8324

M60-64

8324

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

12639

Males

8345

M60-64

8345

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

14057

Males

8942

M60-64

8942

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2stories
+22ft-21ft

Overall

14930

Males

9440

M60-64

9440

Passing Analysis

Category:
Athletes Passed
1334
Passed By
2576
Net Change
-1245
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8878
5K → 10K180271-91#8878#8969
10K → 15K89341-252#8969#9221
15K → 20K77591-514#9221#9735
20K → Half3236-4#9735#9739
Half → 25K134188-54#9739#9793
25K → 30K308150+158#9793#9635
30K → 20M12461+63#9635#9572
20M → 21M11070+40#9572#9532
21M → 35K5077-27#9532#9559
35K → 23M82165-83#9559#9642
23M → 24M58174-116#9642#9758
24M → 40K46136-91#9758#9849
40K → 25.2M1491-77#9849#9926
25.2M → Finish30225-197#9926#10123
TOTALS13342576-1245
📊

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