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BOSTON MARATHON 2026

Robert Belusko

Bib: 13260•M

IL

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 37%
Gender (Male)
#0 / 16340
Top 50%
Masters (Masters Men)
#0 / 10617
Top 39%
Age Group (M45-49)
#0 / 2413
Race Day Weather
51°/41°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
22:44
3.11 mi
Rank: #11184
Start → 5K
22:44 | 7:20/mi
10K
45:23
6.21 mi
Rank: #11101 (+83)
5K → 10K
22:39 | 7:18/mi
15K
1:07:36
9.32 mi
Rank: #10626 (+475)
10K → 15K
22:13 | 7:10/mi
20K
1:29:53
12.43 mi
Rank: #10186 (+440)
15K → 20K
22:17 | 7:11/mi
HALF
1:34:39
13.11 mi
Rank: #10079 (+107)
20K → HALF
4:46 | 7:00/mi
25K
1:51:52
15.53 mi
Rank: #9710 (+369)
HALF → 25K
17:13 | 7:06/mi
30K
2:14:39
18.64 mi
Rank: #9437 (+273)
25K → 30K
22:47 | 7:20/mi
20M
2:24:46
20.00 mi
Rank: #9356 (+81)
30K → 20M
10:07 | 7:27/mi
21M
2:32:42
21.00 mi
Rank: #9314 (+42)
20M → 21M
7:56 | 7:56/mi
35K
2:38:12
21.75 mi
Rank: #9290 (+24)
21M → 35K
5:30 | 7:22/mi
23M
2:47:54
23.00 mi
Rank: #9294 (-4)
35K → 23M
9:42 | 7:46/mi
24M
2:56:01
24.00 mi
Rank: #9497 (-203)
23M → 24M
8:07 | 8:07/mi
40K
3:03:40
24.85 mi
Rank: #9908 (-411)
24M → 40K
7:39 | 8:57/mi
25.2M
3:07:07
25.20 mi
Rank: #10095 (-187)
40K → 25.2M
3:27 | 10:01/mi
FINISH
3:16:27
26.22 mi
Rank: #10692 (-597)
25.2M → FINISH
9:20 | 9:10/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:34:39
Pace7:14 /mi
2nd Half
Distance13.11 mi
Time1:41:48
Pace7:46 /mi
📊Positive Split: 7.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:2222:447:2022:44
7:20
-
10K
6.21 mi11:18:0145:237:1922:39
7:18
-0:02
15K
9.32 mi11:40:141:07:367:1622:13
7:10
-0:08
20K
12.43 mi12:02:311:29:537:1422:17
7:11
+0:01
HALF
13.11 mi12:07:171:34:397:144:46
7:00
-0:11
25K
15.53 mi12:24:301:51:527:1317:13
7:06
+0:06
30K
18.64 mi12:47:172:14:397:1422:47
7:20
+0:14
20M
20.00 mi12:57:242:24:467:1510:07
7:27
+0:07
21M
21.00 mi13:05:202:32:427:177:56
7:56
+0:29
35K
21.75 mi13:10:502:38:127:175:30
7:22
-0:34
23M
23.00 mi13:20:322:47:547:199:42
7:46
+0:24
24M
24.00 mi13:28:392:56:017:218:07
8:07
+0:21
40K
24.85 mi13:36:183:03:407:247:39
8:57
+0:50
25.2M
25.20 mi13:39:453:07:077:263:27
10:01
+1:04
FINISH
26.22 mi13:49:053:16:277:309:20
9:10
-0:51

Checkpoint Splits Visualizations

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

📈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

7:00 /mi

Average Pace

7:30 /mi

Slowest Pace

10:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

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

0:00

0% of race

Time at Steady Pace

2:39:58

81% of race

Time at Slower Pace

36:29

19% of race

Average Pace: 7:30 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:55:2222:447:2022:44
7:20
#11184
10K
6.21 mi11:18:0145:237:1922:39
7:18
#11101
15K
9.32 mi11:40:141:07:367:1622:13
7:10
#10626
20K
12.43 mi12:02:311:29:537:1422:17
7:11
#10186
HALF
13.11 mi12:07:171:34:397:144:46
7:00
#10079
25K
15.53 mi12:24:301:51:527:1317:13
7:06
#9710
30K
18.64 mi12:47:172:14:397:1422:47
7:20
#9437
20M
20.00 mi12:57:242:24:467:1510:07
7:27
#9356
21M
21.00 mi13:05:202:32:427:177:56
7:56
#9314
35K
21.75 mi13:10:502:38:127:175:30
7:22
#9290
23M
23.00 mi13:20:322:47:547:199:42
7:46
#9294
24M
24.00 mi13:28:392:56:017:218:07
8:07
#9497
40K
24.85 mi13:36:183:03:407:247:39
8:57
#9908
25.2M
25.20 mi13:39:453:07:077:263:27
10:01
#10095
FINISH
26.22 mi13:49:053:16:277:309:20
9:10
#10692
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi11184868786879691(Top 33%)7870(Top 48%)7870(Top 326%)
10K6.21 mi3.10 mi11101+838604+838604+8311045(Top 38%)8555(Top 52%)8555(Top 355%)
15K9.32 mi3.11 mi10626+4758353+2518353+2519691(Top 33%)7870(Top 48%)7870(Top 326%)
20K12.43 mi3.11 mi10186+4408106+2478106+2479136(Top 31%)7497(Top 46%)7497(Top 311%)
HALF13.11 mi0.68 mi10079+1078052+548052+548622(Top 30%)7269(Top 44%)7269(Top 301%)
25K15.53 mi2.42 mi9710+3697847+2057847+2058127(Top 28%)6828(Top 42%)6828(Top 283%)
30K18.64 mi3.11 mi9437+2737649+1987649+1988354(Top 29%)6807(Top 42%)6807(Top 282%)
20M20.00 mi1.36 mi9356+817577+727577+728758(Top 30%)6932(Top 42%)6932(Top 287%)
21M21.00 mi1.00 mi9314+427532+457532+459444(Top 33%)7192(Top 44%)7192(Top 298%)
35K21.75 mi0.75 mi9290+247510+227510+229708(Top 33%)7334(Top 45%)7334(Top 304%)
23M23.00 mi1.25 mi9294-47469+417469+4110646(Top 37%)7680(Top 47%)7680(Top 318%)
24M24.00 mi1.00 mi9497-2037561-927561-9214495(Top 50%)9368(Top 57%)9368(Top 388%)
40K24.85 mi0.85 mi9908-4117731-1707731-17018100(Top 62%)10932(Top 67%)10932(Top 453%)
25.2M25.20 mi0.35 mi10095-1877814-837814-8319345(Top 67%)11511(Top 70%)11511(Top 477%)
FINISH26.22 mi1.02 mi10692-5978094-2808094-28021122(Top 73%)12399(Top 76%)12399(Top 514%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21
+97ft-345ft

Overall

9691

Males

7870

M45-49

7870

5K→10K

3.1 - 6.2 mi

Top 38%
×5
+79ft-138ft

Overall

11045

Males

8555

M45-49

8555

10K→15K

6.2 - 9.3 mi

Top 33%
×3
+67ft-78ft

Overall

9691

Males

7870

M45-49

7870

15K→20K

9.3 - 12.4 mi

Top 31%
×5
+106ft-86ft

Overall

9136

Males

7497

M45-49

7497

20K→HALF

12.4 - 13.1 mi

Top 30%
×2
+19ft-37ft

Overall

8622

Males

7269

M45-49

7269

HALF→25K

13.1 - 15.5 mi

Top 28%
×4
+66ft-88ft

Overall

8127

Males

6828

M45-49

6828

25K→30K

15.5 - 18.6 mi

Top 29%
×9
+181ft-148ft

Overall

8354

Males

6807

M45-49

6807

30K→20M

18.6 - 20.0 mi

Top 30%
×5
+64ft-50ft

Overall

8758

Males

6932

M45-49

6932

20M→21M

20.0 - 21.0 mi

Top 33%
×8
+106ft-24ft

Overall

9444

Males

7192

M45-49

7192

21M→35K

21.0 - 21.8 mi

Top 33%
×7
+17ft-86ft

Overall

9708

Males

7334

M45-49

7334

35K→23M

21.8 - 23.0 mi

Top 37%
×5
+23ft-63ft

Overall

10646

Males

7680

M45-49

7680

23M→24M

23.0 - 24.0 mi

Top 50%
×6
+12ft-82ft

Overall

14495

Males

9368

M45-49

9368

24M→40K

24.0 - 24.9 mi

Top 62%
×1
+6ft-20ft

Overall

18100

Males

10932

M45-49

10932

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1
+13ft-16ft

Overall

19345

Males

11511

M45-49

11511

25.2M→FINISH

25.2 - 26.2 mi

Top 73%
×2
+22ft-21ft

Overall

21122

Males

12399

M45-49

12399

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2471*
Passed By
1324
Net Change
+492
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11184
5K → 10K283*200+83#11184#11101
10K → 15K497*22+475#11101#10626
15K → 20K458*18+440#10626#10186
20K → HALF1070+107#10186#10079
HALF → 25K374*5+369#10079#9710
25K → 30K308*35+273#9710#9437
30K → 20M13150+81#9437#9356
20M → 21M10563+42#9356#9314
21M → 35K6440+24#9314#9290
35K → 23M97101-4#9290#9294
23M → 24M24200-203#9294#9497
24M → 40K13200-411#9497#9908
40K → 25.2M5190-187#9908#10095
25.2M → FINISH5200-597#10095#10692
TOTALS2471*1324+492

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

📊

Passing Analysis Visualizations

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

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race 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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Export & Support

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing