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BOSTON MARATHON 2026

Kenneth Bacow

Bib: 26559β€’M

NY

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M40-44)
#0 / 2198
Race Day Weather
51Β°/41Β°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
30:55
3.11 mi
Rank: #25818
Start β†’ 5K
30:55 | 9:58/mi
10K
1:01:15
6.21 mi
Rank: #25529 (+289)
5K β†’ 10K
30:20 | 9:46/mi
15K
1:31:48
9.32 mi
Rank: #25435 (+94)
10K β†’ 15K
30:33 | 9:50/mi
20K
2:03:46
12.43 mi
Rank: #25486 (-51)
15K β†’ 20K
31:58 | 10:18/mi
HALF
2:10:45
13.11 mi
Rank: #25521 (-35)
20K β†’ HALF
6:59 | 10:15/mi
25K
2:37:08
15.53 mi
Rank: #25671 (-150)
HALF β†’ 25K
26:23 | 10:53/mi
30K
3:15:16
18.64 mi
Rank: #26079 (-408)
25K β†’ 30K
38:08 | 12:17/mi
20M
3:34:52
20.00 mi
Rank: #26418 (-339)
30K β†’ 20M
19:36 | 14:26/mi
21M
3:49:51
21.00 mi
Rank: #26600 (-182)
20M β†’ 21M
14:59 | 14:59/mi
35K
4:00:36
21.75 mi
Rank: #26757 (-157)
21M β†’ 35K
10:45 | 14:23/mi
23M
4:18:26
23.00 mi
Rank: #26917 (-160)
35K β†’ 23M
17:50 | 14:16/mi
24M
4:31:51
24.00 mi
Rank: #27011 (-94)
23M β†’ 24M
13:25 | 13:25/mi
40K
4:43:13
24.85 mi
Rank: #27048 (-37)
24M β†’ 40K
11:22 | 13:18/mi
25.2M
4:48:18
25.20 mi
Rank: #27068 (-20)
40K β†’ 25.2M
5:05 | 14:45/mi
FINISH
5:01:25
26.22 mi
Rank: #27142 (-74)
25.2M β†’ FINISH
13:07 | 12:53/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:10:45
Pace9:59 /mi
2nd Half
Distance13.11 mi
Time2:50:40
Pace13:02 /mi
πŸ“ŠPositive Split: 30.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:38:2930:559:5830:55
9:58
-
10K
6.21 mi12:08:491:01:159:5230:20
9:46
-0:12
15K
9.32 mi12:39:221:31:489:5130:33
9:50
+0:04
20K
12.43 mi13:11:202:03:469:5831:58
10:18
+0:28
HALF
13.11 mi13:18:192:10:459:596:59
10:15
-0:03
25K
15.53 mi13:44:422:37:0810:0726:23
10:53
+0:38
30K
18.64 mi14:22:503:15:1610:2938:08
12:17
+1:24
20M
20.00 mi14:42:263:34:5210:4519:36
14:26
+2:09
21M
21.00 mi14:57:253:49:5110:5714:59
14:59
+0:33
35K
21.75 mi15:08:104:00:3611:0410:45
14:23
-0:36
23M
23.00 mi15:26:004:18:2611:1517:50
14:16
-0:07
24M
24.00 mi15:39:254:31:5111:2013:25
13:25
-0:51
40K
24.85 mi15:50:474:43:1311:2411:22
13:18
-0:07
25.2M
25.20 mi15:55:524:48:1811:275:05
14:45
+1:27
FINISH
26.22 mi16:08:595:01:2511:3113:07
12:53
-1:52

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

πŸ“ˆPace 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

9:46 /mi

Average Pace

11:30 /mi

Slowest Pace

14:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

πŸ“ŠSegments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:37:08

52% of race

Time at Steady Pace

1:16:02

25% of race

Time at Slower Pace

1:08:15

23% of race

Average Pace: 11:30 /mi

Loading chart...
Faster pace (< avg)
Steady pace (β‰ˆ 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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:38:2930:559:5830:55
9:58
#25818
10K
6.21 mi12:08:491:01:159:5230:20
9:46
#25529
15K
9.32 mi12:39:221:31:489:5130:33
9:50
#25435
20K
12.43 mi13:11:202:03:469:5831:58
10:18
#25486
HALF
13.11 mi13:18:192:10:459:596:59
10:15
#25521
25K
15.53 mi13:44:422:37:0810:0726:23
10:53
#25671
30K
18.64 mi14:22:503:15:1610:2938:08
12:17
#26079
20M
20.00 mi14:42:263:34:5210:4519:36
14:26
#26418
21M
21.00 mi14:57:253:49:5110:5714:59
14:59
#26600
35K
21.75 mi15:08:104:00:3611:0410:45
14:23
#26757
23M
23.00 mi15:26:004:18:2611:1517:50
14:16
#26917
24M
24.00 mi15:39:254:31:5111:2013:25
13:25
#27011
40K
24.85 mi15:50:474:43:1311:2411:22
13:18
#27048
25.2M
25.20 mi15:55:524:48:1811:275:05
14:45
#27068
FINISH
26.22 mi16:08:595:01:2511:3113:07
12:53
#27142
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi25818151071510725305(Top 87%)14874(Top 91%)14874(Top 677%)
10K6.21 mi3.10 mi25529+28914973+13414973+13425253(Top 87%)14852(Top 91%)14852(Top 676%)
15K9.32 mi3.11 mi25435+9414920+5314920+5325305(Top 87%)14874(Top 91%)14874(Top 677%)
20K12.43 mi3.11 mi25486-5114945-2514945-2525686(Top 89%)15008(Top 92%)15008(Top 683%)
HALF13.11 mi0.68 mi25521-3514963-1814963-1826174(Top 90%)15225(Top 93%)15225(Top 693%)
25K15.53 mi2.42 mi25671-15015017-5415017-5426144(Top 90%)15165(Top 93%)15165(Top 690%)
30K18.64 mi3.11 mi26079-40815169-15215169-15227100(Top 93%)15487(Top 95%)15487(Top 705%)
20M20.00 mi1.36 mi26418-33915291-12215291-12228361(Top 98%)16024(Top 98%)16024(Top 729%)
21M21.00 mi1.00 mi26600-18215370-7915370-7928044(Top 97%)15858(Top 97%)15858(Top 721%)
35K21.75 mi0.75 mi26757-15715443-7315443-7328509(Top 98%)16054(Top 98%)16054(Top 730%)
23M23.00 mi1.25 mi26917-16015496-5315496-5328307(Top 98%)15959(Top 98%)15959(Top 726%)
24M24.00 mi1.00 mi27011-9415530-3415530-3427963(Top 96%)15768(Top 96%)15768(Top 717%)
40K24.85 mi0.85 mi27048-3715538-815538-827334(Top 94%)15448(Top 95%)15448(Top 703%)
25.2M25.20 mi0.35 mi27068-2015541-315541-327773(Top 96%)15657(Top 96%)15657(Top 712%)
FINISH26.22 mi1.02 mi27142-7415561-2015561-2028136(Top 97%)15849(Top 97%)15849(Top 721%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
Γ—21
+97ft-345ft

Overall

25305

Males

14874

M40-44

14874

5K→10K

3.1 - 6.2 mi

Top 87%
Γ—5
+79ft-138ft

Overall

25253

Males

14852

M40-44

14852

10K→15K

6.2 - 9.3 mi

Top 87%
Γ—3
+67ft-78ft

Overall

25305

Males

14874

M40-44

14874

15K→20K

9.3 - 12.4 mi

Top 89%
Γ—5
+106ft-86ft

Overall

25686

Males

15008

M40-44

15008

20K→HALF

12.4 - 13.1 mi

Top 90%
Γ—2
+19ft-37ft

Overall

26174

Males

15225

M40-44

15225

HALF→25K

13.1 - 15.5 mi

Top 90%
Γ—4
+66ft-88ft

Overall

26144

Males

15165

M40-44

15165

25K→30K

15.5 - 18.6 mi

Top 93%
Γ—9
+181ft-148ft

Overall

27100

Males

15487

M40-44

15487

30K→20M

18.6 - 20.0 mi

Top 98%
Γ—5
+64ft-50ft

Overall

28361

Males

16024

M40-44

16024

20M→21M

20.0 - 21.0 mi

Top 97%
Γ—8
+106ft-24ft

Overall

28044

Males

15858

M40-44

15858

21M→35K

21.0 - 21.8 mi

Top 98%
Γ—7
+17ft-86ft

Overall

28509

Males

16054

M40-44

16054

35K→23M

21.8 - 23.0 mi

Top 98%
Γ—5
+23ft-63ft

Overall

28307

Males

15959

M40-44

15959

23M→24M

23.0 - 24.0 mi

Top 96%
Γ—6
+12ft-82ft

Overall

27963

Males

15768

M40-44

15768

24M→40K

24.0 - 24.9 mi

Top 94%
Γ—1
+6ft-20ft

Overall

27334

Males

15448

M40-44

15448

40K→25.2M

24.9 - 25.2 mi

Top 96%
Γ—1
+13ft-16ft

Overall

27773

Males

15657

M40-44

15657

25.2M→FINISH

25.2 - 26.2 mi

Top 97%
Γ—2
+22ft-21ft

Overall

28136

Males

15849

M40-44

15849

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
834*
Passed By
1766
Net Change
-1324
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#25818
5K β†’ 10K386*97+289#25818#25529
10K β†’ 15K19399+94#25529#25435
15K β†’ 20K100151-51#25435#25486
20K β†’ HALF1146-35#25486#25521
HALF β†’ 25K52200-150#25521#25671
25K β†’ 30K35200-408#25671#26079
30K β†’ 20M8200-339#26079#26418
20M β†’ 21M2184-182#26418#26600
21M β†’ 35K1158-157#26600#26757
35K β†’ 23M14174-160#26757#26917
23M β†’ 24M11105-94#26917#27011
24M β†’ 40K1047-37#27011#27048
40K β†’ 25.2M626-20#27048#27068
25.2M β†’ FINISH579-74#27068#27142
TOTALS834*1766-1324

* Includes athletes who did not complete a segment (DNF/DNQ).

πŸ“Š

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

πŸ“ˆPosition Graph

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🎨Heatmap Timeline

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πŸ”„Passing Circle

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🌊Position Flow

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πŸƒRace Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing