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BOSTON MARATHON 2025

Mark Sekerak

Bib: 19610•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 (M55-59)
#0 / 1648
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:15
Rank: #19585
Start → 5K
26:15 | 8:27/mi
10K· 6.21 mi
52:05
Rank: #19126 (+459)
5K → 10K
25:50 | 8:19/mi
15K· 9.32 mi
1:17:53
Rank: #18757 (+369)
10K → 15K
25:48 | 8:18/mi
20K· 12.43 mi
1:44:05
Rank: #18479 (+278)
15K → 20K
26:12 | 8:26/mi
Half· 13.11 mi
1:49:46
Rank: #18463 (+16)
20K → Half
5:41 | 8:20/mi
25K· 15.53 mi
2:10:24
Rank: #18222 (+241)
Half → 25K
20:38 | 8:31/mi
30K· 18.64 mi
2:37:46
Rank: #17864 (+358)
25K → 30K
27:22 | 8:49/mi
20M
2:49:47
Rank: #17706 (+158)
30K → 20M
12:01 | 8:51/mi
21M
2:58:57
Rank: #17501 (+205)
20M → 21M
9:10 | 9:10/mi
35K· 21.75 mi
3:05:31
Rank: #17473 (+28)
21M → 35K
6:34 | 8:47/mi
23M
3:16:42
Rank: #17358 (+115)
35K → 23M
11:11 | 8:56/mi
24M
3:26:07
Rank: #17466 (-108)
23M → 24M
9:25 | 9:25/mi
40K· 24.85 mi
3:33:43
Rank: #17402 (+64)
24M → 40K
7:36 | 8:53/mi
25.2M
3:37:01
Rank: #17357 (+45)
40K → 25.2M
3:18 | 9:34/mi
Finish· 26.22 mi
3:45:59
Rank: #17373 (-16)
25.2M → Finish
8:58 | 8:48/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:46
Pace8:22 /mi
2nd Half
Distance13.11 mi
Time1:56:13
Pace8:52 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:4926:158:2726:15
8:27
-
10K
6.21 mi11:44:3952:058:2325:50
8:19
-0:08
15K
9.32 mi12:10:271:17:538:2125:48
8:18
-0:01
20K
12.43 mi12:36:391:44:058:2326:12
8:26
+0:08
Half
13.11 mi12:42:201:49:468:225:41
8:20
-0:06
25K
15.53 mi13:02:582:10:248:2420:38
8:31
+0:11
30K
18.64 mi13:30:202:37:468:2827:22
8:49
+0:18
20M
20.00 mi13:42:212:49:478:2912:01
8:51
+0:02
21M
21.00 mi13:51:312:58:578:319:10
9:10
+0:19
35K
21.75 mi13:58:053:05:318:326:34
8:47
-0:23
23M
23.00 mi14:09:163:16:428:3311:11
8:56
+0:09
24M
24.00 mi14:18:413:26:078:359:25
9:25
+0:29
40K
24.85 mi14:26:173:33:438:367:36
8:53
-0:32
25.2M
25.20 mi14:29:353:37:018:373:18
9:34
+0:41
Finish
26.22 mi14:38:333:45:598:388:58
8:48
-0:46

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

8:18 /mi

Average Pace

8:38 /mi

Slowest Pace

9:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:24:06

90% of race

Time at Steady Pace

21:53

10% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:37 /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 mi11:18:4926:158:2726:15
8:27
#19585
10K
6.21 mi11:44:3952:058:2325:50
8:19
#19126
15K
9.32 mi12:10:271:17:538:2125:48
8:18
#18757
20K
12.43 mi12:36:391:44:058:2326:12
8:26
#18479
Half
13.11 mi12:42:201:49:468:225:41
8:20
#18463
25K
15.53 mi13:02:582:10:248:2420:38
8:31
#18222
30K
18.64 mi13:30:202:37:468:2827:22
8:49
#17864
20M
20.00 mi13:42:212:49:478:2912:01
8:51
#17706
21M
21.00 mi13:51:312:58:578:319:10
9:10
#17501
35K
21.75 mi13:58:053:05:318:326:34
8:47
#17473
23M
23.00 mi14:09:163:16:428:3311:11
8:56
#17358
24M
24.00 mi14:18:413:26:078:359:25
9:25
#17466
40K
24.85 mi14:26:173:33:438:367:36
8:53
#17402
25.2M
25.20 mi14:29:353:37:018:373:18
9:34
#17357
Finish
26.22 mi14:38:333:45:598:388:58
8:48
#17373
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi19585122771227718072(Top 64%)11656(Top 72%)11656(Top 707%)
10K6.21 mi3.10 mi19126+45912096+18112096+18118628(Top 66%)11906(Top 74%)11906(Top 722%)
15K9.32 mi3.11 mi18757+36911938+15811938+15818072(Top 64%)11656(Top 72%)11656(Top 707%)
20K12.43 mi3.11 mi18479+27811818+12011818+12017750(Top 62%)11507(Top 71%)11507(Top 698%)
Half13.11 mi0.68 mi18463+1611819-111819-118061(Top 64%)11651(Top 72%)11651(Top 707%)
25K15.53 mi2.42 mi18222+24111686+13311686+13317256(Top 61%)11206(Top 70%)11206(Top 680%)
30K18.64 mi3.11 mi17864+35811484+20211484+20216647(Top 59%)10773(Top 67%)10773(Top 654%)
20M20.00 mi1.36 mi17706+15811390+9411390+9415894(Top 56%)10328(Top 64%)10328(Top 627%)
21M21.00 mi1.00 mi17501+20511280+11011280+11014433(Top 51%)9544(Top 59%)9544(Top 579%)
35K21.75 mi0.75 mi17473+2811247+3311247+3317105(Top 60%)10653(Top 66%)10653(Top 646%)
23M23.00 mi1.25 mi17358+11511166+8111166+8115865(Top 56%)10013(Top 62%)10013(Top 608%)
24M24.00 mi1.00 mi17466-10811190-2411190-2419287(Top 68%)11541(Top 72%)11541(Top 700%)
40K24.85 mi0.85 mi17402+6411138+5211138+5215682(Top 55%)9761(Top 61%)9761(Top 592%)
25.2M25.20 mi0.35 mi17357+4511108+3011108+3014924(Top 53%)9381(Top 58%)9381(Top 569%)
Finish26.22 mi1.02 mi17373-1611087+2111087+2118016(Top 63%)10879(Top 68%)10879(Top 660%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21stories
+97ft-345ft

Overall

18072

Males

11656

M55-59

11656

5K→10K

3.1 - 6.2 mi

Top 66%
×5stories
+79ft-138ft

Overall

18628

Males

11906

M55-59

11906

10K→15K

6.2 - 9.3 mi

Top 64%
×3stories
+67ft-78ft

Overall

18072

Males

11656

M55-59

11656

15K→20K

9.3 - 12.4 mi

Top 62%
×5stories
+106ft-86ft

Overall

17750

Males

11507

M55-59

11507

20K→Half

12.4 - 13.1 mi

Top 64%
×2stories
+19ft-37ft

Overall

18061

Males

11651

M55-59

11651

Half→25K

13.1 - 15.5 mi

Top 61%
×4stories
+66ft-88ft

Overall

17256

Males

11206

M55-59

11206

25K→30K

15.5 - 18.6 mi

Top 59%
×9stories
+181ft-148ft

Overall

16647

Males

10773

M55-59

10773

30K→20M

18.6 - 20.0 mi

Top 56%
×5stories
+64ft-50ft

Overall

15894

Males

10328

M55-59

10328

20M→21M

20.0 - 21.0 mi

Top 51%
×8stories
+106ft-24ft

Overall

14433

Males

9544

M55-59

9544

21M→35K

21.0 - 21.8 mi

Top 60%
×7stories
+17ft-86ft

Overall

17105

Males

10653

M55-59

10653

35K→23M

21.8 - 23.0 mi

Top 56%
×5stories
+23ft-63ft

Overall

15865

Males

10013

M55-59

10013

23M→24M

23.0 - 24.0 mi

Top 68%
×6stories
+12ft-82ft

Overall

19287

Males

11541

M55-59

11541

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

15682

Males

9761

M55-59

9761

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14924

Males

9381

M55-59

9381

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2stories
+22ft-21ft

Overall

18016

Males

10879

M55-59

10879

Passing Analysis

Category:
Athletes Passed
3037
Passed By
825
Net Change
+2212
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19585
5K → 10K565106+459#19585#19126
10K → 15K42051+369#19126#18757
15K → 20K35274+278#18757#18479
20K → Half4428+16#18479#18463
Half → 25K29352+241#18463#18222
25K → 30K42365+358#18222#17864
30K → 20M19840+158#17864#17706
20M → 21M22419+205#17706#17501
21M → 35K8355+28#17501#17473
35K → 23M15944+115#17473#17358
23M → 24M55163-108#17358#17466
24M → 40K9935+64#17466#17402
40K → 25.2M5813+45#17402#17357
25.2M → Finish6480-16#17357#17373
TOTALS3037825+2212
📊

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