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BOSTON MARATHON 2026

Slawomir Zaglewski

Bib: 14814•M

NJ

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 48%
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M55-59)
#0 / 1491
Top 43%
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
23:23
3.11 mi
Rank: #12987
Start → 5K
23:23 | 7:32/mi
10K
47:00
6.21 mi
Rank: #13387 (-400)
5K → 10K
23:37 | 7:37/mi
15K
1:10:30
9.32 mi
Rank: #13333 (+54)
10K → 15K
23:30 | 7:34/mi
20K
1:34:23
12.43 mi
Rank: #13386 (-53)
15K → 20K
23:53 | 7:42/mi
HALF
1:39:36
13.11 mi
Rank: #13428 (-42)
20K → HALF
5:13 | 7:40/mi
25K
1:58:28
15.53 mi
Rank: #13460 (-32)
HALF → 25K
18:52 | 7:47/mi
30K
2:23:22
18.64 mi
Rank: #13458 (+2)
25K → 30K
24:54 | 8:01/mi
20M
2:34:32
20.00 mi
Rank: #13491 (-33)
30K → 20M
11:10 | 8:14/mi
21M
2:43:17
21.00 mi
Rank: #13546 (-55)
20M → 21M
8:45 | 8:45/mi
35K
2:49:19
21.75 mi
Rank: #13592 (-46)
21M → 35K
6:02 | 8:04/mi
23M
2:59:57
23.00 mi
Rank: #13718 (-126)
35K → 23M
10:38 | 8:30/mi
24M
3:08:08
24.00 mi
Rank: #13772 (-54)
23M → 24M
8:11 | 8:11/mi
40K
3:15:18
24.85 mi
Rank: #13792 (-20)
24M → 40K
7:10 | 8:23/mi
25.2M
3:18:25
25.20 mi
Rank: #13820 (-28)
40K → 25.2M
3:07 | 9:03/mi
FINISH
3:26:44
26.22 mi
Rank: #13933 (-113)
25.2M → FINISH
8:19 | 8:10/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:39:36
Pace7:36 /mi
2nd Half
Distance13.11 mi
Time1:47:08
Pace8:11 /mi
📊Positive Split: 7.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:4123:237:3223:23
7:32
-
10K
6.21 mi11:17:1847:007:3423:37
7:37
+0:05
15K
9.32 mi11:40:481:10:307:3423:30
7:34
-0:03
20K
12.43 mi12:04:411:34:237:3623:53
7:42
+0:08
HALF
13.11 mi12:09:541:39:367:365:13
7:40
-0:02
25K
15.53 mi12:28:461:58:287:3818:52
7:47
+0:07
30K
18.64 mi12:53:402:23:227:4224:54
8:01
+0:14
20M
20.00 mi13:04:502:34:327:4411:10
8:14
+0:13
21M
21.00 mi13:13:352:43:177:478:45
8:45
+0:31
35K
21.75 mi13:19:372:49:197:486:02
8:04
-0:41
23M
23.00 mi13:30:152:59:577:5010:38
8:30
+0:26
24M
24.00 mi13:38:263:08:087:518:11
8:11
-0:19
40K
24.85 mi13:45:363:15:187:527:10
8:23
+0:12
25.2M
25.20 mi13:48:433:18:257:533:07
9:03
+0:40
FINISH
26.22 mi13:57:023:26:447:548:19
8:10
-0:53

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

7:32 /mi

Average Pace

7:53 /mi

Slowest Pace

9:03 /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

1:58:28

57% of race

Time at Steady Pace

58:36

28% of race

Time at Slower Pace

29:40

14% of race

Average Pace: 7:53 /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 mi10:53:4123:237:3223:23
7:32
#12987
10K
6.21 mi11:17:1847:007:3423:37
7:37
#13387
15K
9.32 mi11:40:481:10:307:3423:30
7:34
#13333
20K
12.43 mi12:04:411:34:237:3623:53
7:42
#13386
HALF
13.11 mi12:09:541:39:367:365:13
7:40
#13428
25K
15.53 mi12:28:461:58:287:3818:52
7:47
#13460
30K
18.64 mi12:53:402:23:227:4224:54
8:01
#13458
20M
20.00 mi13:04:502:34:327:4411:10
8:14
#13491
21M
21.00 mi13:13:352:43:177:478:45
8:45
#13546
35K
21.75 mi13:19:372:49:197:486:02
8:04
#13592
23M
23.00 mi13:30:152:59:577:5010:38
8:30
#13718
24M
24.00 mi13:38:263:08:087:518:11
8:11
#13772
40K
24.85 mi13:45:363:15:187:527:10
8:23
#13792
25.2M
25.20 mi13:48:433:18:257:533:07
9:03
#13820
FINISH
26.22 mi13:57:023:26:447:548:19
8:10
#13933
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi129879461946113348(Top 46%)9521(Top 58%)9521(Top 639%)
10K6.21 mi3.10 mi13387-4009598-1379598-13713873(Top 48%)9778(Top 60%)9778(Top 656%)
15K9.32 mi3.11 mi13333+549537+619537+6113348(Top 46%)9521(Top 58%)9521(Top 639%)
20K12.43 mi3.11 mi13386-539541-49541-413604(Top 47%)9563(Top 59%)9563(Top 641%)
HALF13.11 mi0.68 mi13428-429563-229563-2214263(Top 49%)9893(Top 61%)9893(Top 664%)
25K15.53 mi2.42 mi13460-329551+129551+1213665(Top 47%)9513(Top 58%)9513(Top 638%)
30K18.64 mi3.11 mi13458+29504+479504+4713574(Top 47%)9361(Top 57%)9361(Top 628%)
20M20.00 mi1.36 mi13491-339494+109494+1014374(Top 50%)9627(Top 59%)9627(Top 646%)
21M21.00 mi1.00 mi13546-559502-89502-814654(Top 50%)9663(Top 59%)9663(Top 648%)
35K21.75 mi0.75 mi13592-469501+19501+114881(Top 51%)9695(Top 59%)9695(Top 650%)
23M23.00 mi1.25 mi13718-1269521-209521-2015670(Top 54%)9960(Top 61%)9960(Top 668%)
24M24.00 mi1.00 mi13772-549529-89529-814942(Top 51%)9582(Top 59%)9582(Top 643%)
40K24.85 mi0.85 mi13792-209517+129517+1214933(Top 51%)9481(Top 58%)9481(Top 636%)
25.2M25.20 mi0.35 mi13820-289521-49521-414866(Top 51%)9426(Top 58%)9426(Top 632%)
FINISH26.22 mi1.02 mi13933-1139540-199540-1916163(Top 56%)10060(Top 62%)10060(Top 675%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21
+97ft-345ft

Overall

13348

Males

9521

M55-59

9521

5K→10K

3.1 - 6.2 mi

Top 48%
×5
+79ft-138ft

Overall

13873

Males

9778

M55-59

9778

10K→15K

6.2 - 9.3 mi

Top 46%
×3
+67ft-78ft

Overall

13348

Males

9521

M55-59

9521

15K→20K

9.3 - 12.4 mi

Top 47%
×5
+106ft-86ft

Overall

13604

Males

9563

M55-59

9563

20K→HALF

12.4 - 13.1 mi

Top 49%
×2
+19ft-37ft

Overall

14263

Males

9893

M55-59

9893

HALF→25K

13.1 - 15.5 mi

Top 47%
×4
+66ft-88ft

Overall

13665

Males

9513

M55-59

9513

25K→30K

15.5 - 18.6 mi

Top 47%
×9
+181ft-148ft

Overall

13574

Males

9361

M55-59

9361

30K→20M

18.6 - 20.0 mi

Top 50%
×5
+64ft-50ft

Overall

14374

Males

9627

M55-59

9627

20M→21M

20.0 - 21.0 mi

Top 50%
×8
+106ft-24ft

Overall

14654

Males

9663

M55-59

9663

21M→35K

21.0 - 21.8 mi

Top 51%
×7
+17ft-86ft

Overall

14881

Males

9695

M55-59

9695

35K→23M

21.8 - 23.0 mi

Top 54%
×5
+23ft-63ft

Overall

15670

Males

9960

M55-59

9960

23M→24M

23.0 - 24.0 mi

Top 51%
×6
+12ft-82ft

Overall

14942

Males

9582

M55-59

9582

24M→40K

24.0 - 24.9 mi

Top 51%
×1
+6ft-20ft

Overall

14933

Males

9481

M55-59

9481

40K→25.2M

24.9 - 25.2 mi

Top 51%
×1
+13ft-16ft

Overall

14866

Males

9426

M55-59

9426

25.2M→FINISH

25.2 - 26.2 mi

Top 56%
×2
+22ft-21ft

Overall

16163

Males

10060

M55-59

10060

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1250
Passed By
2196
Net Change
-946
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12987
5K → 10K127527-400#12987#13387
10K → 15K227173+54#13387#13333
15K → 20K150203-53#13333#13386
20K → HALF1860-42#13386#13428
HALF → 25K113145-32#13428#13460
25K → 30K189187+2#13460#13458
30K → 20M87120-33#13458#13491
20M → 21M67122-55#13491#13546
21M → 35K4389-46#13546#13592
35K → 23M67193-126#13592#13718
23M → 24M52106-54#13718#13772
24M → 40K5474-20#13772#13792
40K → 25.2M1745-28#13792#13820
25.2M → FINISH39152-113#13820#13933
TOTALS12502196-946
📊

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