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BOSTON MARATHON 2026

Adam Czelusta

Bib: 13598•M

TX

Masters
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0:00
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Overall
#0 / 29021
Top 34%
Gender (Male)
#0 / 16340
Top 47%
Masters (Masters Men)
#0 / 10617
Top 36%
Age Group (M50-54)
#0 / 1868
Top 36%
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· 3.11 mi
22:45
Rank: #11235
Start → 5K
22:45 | 7:20/mi
10K· 6.21 mi
45:43
Rank: #11576 (-341)
5K → 10K
22:58 | 7:24/mi
15K· 9.32 mi
1:08:42
Rank: #11699 (-123)
10K → 15K
22:59 | 7:24/mi
20K· 12.43 mi
1:31:33
Rank: #11435 (+264)
15K → 20K
22:51 | 7:22/mi
HALF· 13.11 mi
1:36:31
Rank: #11415 (+20)
20K → HALF
4:58 | 7:18/mi
25K· 15.53 mi
1:54:18
Rank: #11164 (+251)
HALF → 25K
17:47 | 7:20/mi
30K· 18.64 mi
2:17:16
Rank: #10642 (+522)
25K → 30K
22:58 | 7:24/mi
20M
2:27:17
Rank: #10415 (+227)
30K → 20M
10:01 | 7:23/mi
21M
2:35:06
Rank: #10264 (+151)
20M → 21M
7:49 | 7:49/mi
35K· 21.75 mi
2:40:34
Rank: #10215 (+49)
21M → 35K
5:28 | 7:19/mi
23M
2:49:50
Rank: #10019 (+196)
35K → 23M
9:16 | 7:25/mi
24M
2:57:12
Rank: #9945 (+74)
23M → 24M
7:22 | 7:22/mi
40K· 24.85 mi
3:03:39
Rank: #9900 (+45)
24M → 40K
6:27 | 7:33/mi
25.2M
3:06:31
Rank: #9901 (-1)
40K → 25.2M
2:52 | 8:19/mi
FINISH· 26.22 mi
3:14:12
Rank: #9957 (-56)
25.2M → FINISH
7:41 | 7:33/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:36:31
Pace7:22 /mi
2nd Half
Distance13.11 mi
Time1:37:41
Pace7:28 /mi
📊Positive Split: 1.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:5222:457:2022:45
7:20
-
10K
6.21 mi11:14:5045:437:2222:58
7:24
+0:04
15K
9.32 mi11:37:491:08:427:2322:59
7:24
0:00
20K
12.43 mi12:00:401:31:337:2322:51
7:22
-0:02
HALF
13.11 mi12:05:381:36:317:224:58
7:18
-0:04
25K
15.53 mi12:23:251:54:187:2217:47
7:20
+0:02
30K
18.64 mi12:46:232:17:167:2222:58
7:24
+0:04
20M
20.00 mi12:56:242:27:177:2210:01
7:23
-0:01
21M
21.00 mi13:04:132:35:067:247:49
7:49
+0:26
35K
21.75 mi13:09:412:40:347:235:28
7:19
-0:30
23M
23.00 mi13:18:572:49:507:249:16
7:25
+0:06
24M
24.00 mi13:26:192:57:127:247:22
7:22
-0:03
40K
24.85 mi13:32:463:03:397:246:27
7:33
+0:11
25.2M
25.20 mi13:35:383:06:317:252:52
8:19
+0:46
FINISH
26.22 mi13:43:193:14:127:257:41
7:33
-0:46

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

7:18 /mi

Average Pace

7:25 /mi

Slowest Pace

8:19 /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

3:11:20

99% of race

Time at Steady Pace

2:52

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:24 /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 mi10:51:5222:457:2022:45
7:20
#11235
10K
6.21 mi11:14:5045:437:2222:58
7:24
#11576
15K
9.32 mi11:37:491:08:427:2322:59
7:24
#11699
20K
12.43 mi12:00:401:31:337:2322:51
7:22
#11435
HALF
13.11 mi12:05:381:36:317:224:58
7:18
#11415
25K
15.53 mi12:23:251:54:187:2217:47
7:20
#11164
30K
18.64 mi12:46:232:17:167:2222:58
7:24
#10642
20M
20.00 mi12:56:242:27:177:2210:01
7:23
#10415
21M
21.00 mi13:04:132:35:067:247:49
7:49
#10264
35K
21.75 mi13:09:412:40:347:235:28
7:19
#10215
23M
23.00 mi13:18:572:49:507:249:16
7:25
#10019
24M
24.00 mi13:26:192:57:127:247:22
7:22
#9945
40K
24.85 mi13:32:463:03:397:246:27
7:33
#9900
25.2M
25.20 mi13:35:383:06:317:252:52
8:19
#9901
FINISH
26.22 mi13:43:193:14:127:257:41
7:33
#9957
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi112358706870611896(Top 41%)8882(Top 54%)8882(Top 475%)
10K6.21 mi3.10 mi11576-3418822-1168822-11611994(Top 41%)8979(Top 55%)8979(Top 481%)
15K9.32 mi3.11 mi11699-1238846-248846-2411896(Top 41%)8882(Top 54%)8882(Top 475%)
20K12.43 mi3.11 mi11435+2648707+1398707+13910669(Top 37%)8241(Top 50%)8241(Top 441%)
HALF13.11 mi0.68 mi11415+208688+198688+1911000(Top 38%)8472(Top 52%)8472(Top 454%)
25K15.53 mi2.42 mi11164+2518548+1408548+1409982(Top 34%)7830(Top 48%)7830(Top 419%)
30K18.64 mi3.11 mi10642+5228240+3088240+3088793(Top 30%)7057(Top 43%)7057(Top 378%)
20M20.00 mi1.36 mi10415+2278104+1368104+1368228(Top 28%)6630(Top 41%)6630(Top 355%)
21M21.00 mi1.00 mi10264+1518007+978007+978631(Top 30%)6735(Top 41%)6735(Top 361%)
35K21.75 mi0.75 mi10215+497964+437964+439345(Top 32%)7146(Top 44%)7146(Top 383%)
23M23.00 mi1.25 mi10019+1967841+1237841+1238177(Top 28%)6438(Top 39%)6438(Top 345%)
24M24.00 mi1.00 mi9945+747781+607781+609075(Top 31%)6834(Top 42%)6834(Top 366%)
40K24.85 mi0.85 mi9900+457729+527729+529144(Top 32%)6763(Top 41%)6763(Top 362%)
25.2M25.20 mi0.35 mi9901-17715+147715+1410310(Top 36%)7286(Top 45%)7286(Top 390%)
FINISH26.22 mi1.02 mi9957-567715771511715(Top 40%)7955(Top 49%)7955(Top 426%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21stories
+97ft-345ft

Overall

11896

Males

8882

M50-54

8882

5K→10K

3.1 - 6.2 mi

Top 41%
×5stories
+79ft-138ft

Overall

11994

Males

8979

M50-54

8979

10K→15K

6.2 - 9.3 mi

Top 41%
×3stories
+67ft-78ft

Overall

11896

Males

8882

M50-54

8882

15K→20K

9.3 - 12.4 mi

Top 37%
×5stories
+106ft-86ft

Overall

10669

Males

8241

M50-54

8241

20K→HALF

12.4 - 13.1 mi

Top 38%
×2stories
+19ft-37ft

Overall

11000

Males

8472

M50-54

8472

HALF→25K

13.1 - 15.5 mi

Top 34%
×4stories
+66ft-88ft

Overall

9982

Males

7830

M50-54

7830

25K→30K

15.5 - 18.6 mi

Top 30%
×9stories
+181ft-148ft

Overall

8793

Males

7057

M50-54

7057

30K→20M

18.6 - 20.0 mi

Top 28%
×5stories
+64ft-50ft

Overall

8228

Males

6630

M50-54

6630

20M→21M

20.0 - 21.0 mi

Top 30%
×8stories
+106ft-24ft

Overall

8631

Males

6735

M50-54

6735

21M→35K

21.0 - 21.8 mi

Top 32%
×7stories
+17ft-86ft

Overall

9345

Males

7146

M50-54

7146

35K→23M

21.8 - 23.0 mi

Top 28%
×5stories
+23ft-63ft

Overall

8177

Males

6438

M50-54

6438

23M→24M

23.0 - 24.0 mi

Top 31%
×6stories
+12ft-82ft

Overall

9075

Males

6834

M50-54

6834

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

9144

Males

6763

M50-54

6763

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

10310

Males

7286

M50-54

7286

25.2M→FINISH

25.2 - 26.2 mi

Top 40%
×2stories
+22ft-21ft

Overall

11715

Males

7955

M50-54

7955

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2414*
Passed By
1133
Net Change
+1278
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11235
5K → 10K129469-341#11235#11576
10K → 15K140263-123#11576#11699
15K → 20K29935+264#11699#11435
20K → HALF4020+20#11435#11415
HALF → 25K26817+251#11415#11164
25K → 30K53513+522#11164#10642
30K → 20M2358+227#10642#10415
20M → 21M18231+151#10415#10264
21M → 35K8132+49#10264#10215
35K → 23M22124+196#10215#10019
23M → 24M109*35+74#10019#9945
24M → 40K9348+45#9945#9900
40K → 25.2M2728-1#9900#9901
25.2M → FINISH55110-56#9901#9957
TOTALS2414*1133+1278

* 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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing