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BOSTON MARATHON 2026

Jason Izworski

Bib: 10390•M

OH

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 32%
Gender (Male)
#0 / 16340
Top 45%
Masters (Masters Men)
#0 / 10617
Top 33%
Age Group (M50-54)
#0 / 1868
Top 30%
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
21:38
3.11 mi
Rank: #8253
Start → 5K
21:38 | 6:58/mi
10K
42:56
6.21 mi
Rank: #7900 (+353)
5K → 10K
21:18 | 6:52/mi
15K
1:03:34
9.32 mi
Rank: #7038 (+862)
10K → 15K
20:38 | 6:39/mi
20K
1:24:35
12.43 mi
Rank: #6676 (+362)
15K → 20K
21:01 | 6:46/mi
HALF
1:29:15
13.11 mi
Rank: #6729 (-53)
20K → HALF
4:40 | 6:51/mi
25K
1:45:59
15.53 mi
Rank: #6712 (+17)
HALF → 25K
16:44 | 6:54/mi
30K
2:08:15
18.64 mi
Rank: #6779 (-67)
25K → 30K
22:16 | 7:11/mi
20M
2:18:55
20.00 mi
Rank: #7114 (-335)
30K → 20M
10:40 | 7:52/mi
21M
2:27:43
21.00 mi
Rank: #7491 (-377)
20M → 21M
8:48 | 8:48/mi
35K
2:34:34
21.75 mi
Rank: #7985 (-494)
21M → 35K
6:51 | 9:10/mi
23M
2:44:40
23.00 mi
Rank: #8202 (-217)
35K → 23M
10:06 | 8:05/mi
24M
2:52:50
24.00 mi
Rank: #8459 (-257)
23M → 24M
8:10 | 8:10/mi
40K
2:59:59
24.85 mi
Rank: #8671 (-212)
24M → 40K
7:09 | 8:22/mi
25.2M
3:03:10
25.20 mi
Rank: #8785 (-114)
40K → 25.2M
3:11 | 9:14/mi
FINISH
3:11:51
26.22 mi
Rank: #9150 (-365)
25.2M → FINISH
8:41 | 8:32/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:29:15
Pace6:49 /mi
2nd Half
Distance13.11 mi
Time1:42:36
Pace7:50 /mi
📊Positive Split: 15.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:38:4021:386:5821:38
6:58
-
10K
6.21 mi10:59:5842:566:5521:18
6:52
-0:06
15K
9.32 mi11:20:361:03:346:5020:38
6:39
-0:13
20K
12.43 mi11:41:371:24:356:4921:01
6:46
+0:07
HALF
13.11 mi11:46:171:29:156:494:40
6:51
+0:05
25K
15.53 mi12:03:011:45:596:5016:44
6:54
+0:03
30K
18.64 mi12:25:172:08:156:5322:16
7:11
+0:17
20M
20.00 mi12:35:572:18:556:5710:40
7:52
+0:41
21M
21.00 mi12:44:452:27:437:038:48
8:48
+0:56
35K
21.75 mi12:51:362:34:347:076:51
9:10
+0:22
23M
23.00 mi13:01:422:44:407:1010:06
8:05
-1:05
24M
24.00 mi13:09:522:52:507:138:10
8:10
+0:05
40K
24.85 mi13:17:012:59:597:157:09
8:22
+0:12
25.2M
25.20 mi13:20:123:03:107:173:11
9:14
+0:52
FINISH
26.22 mi13:28:533:11:517:208:41
8:32
-0:42

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

6:39 /mi

Average Pace

7:19 /mi

Slowest Pace

9:14 /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

2:08:15

67% of race

Time at Steady Pace

28:56

15% of race

Time at Slower Pace

34:40

18% of race

Average Pace: 7:19 /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 mi10:38:4021:386:5821:38
6:58
#8253
10K
6.21 mi10:59:5842:566:5521:18
6:52
#7900
15K
9.32 mi11:20:361:03:346:5020:38
6:39
#7038
20K
12.43 mi11:41:371:24:356:4921:01
6:46
#6676
HALF
13.11 mi11:46:171:29:156:494:40
6:51
#6729
25K
15.53 mi12:03:011:45:596:5016:44
6:54
#6712
30K
18.64 mi12:25:172:08:156:5322:16
7:11
#6779
20M
20.00 mi12:35:572:18:556:5710:40
7:52
#7114
21M
21.00 mi12:44:452:27:437:038:48
8:48
#7491
35K
21.75 mi12:51:362:34:347:076:51
9:10
#7985
23M
23.00 mi13:01:422:44:407:1010:06
8:05
#8202
24M
24.00 mi13:09:522:52:507:138:10
8:10
#8459
40K
24.85 mi13:17:012:59:597:157:09
8:22
#8671
25.2M
25.20 mi13:20:123:03:107:173:11
9:14
#8785
FINISH
26.22 mi13:28:533:11:517:208:41
8:32
#9150
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 mi8253707370735279(Top 18%)4895(Top 30%)4895(Top 262%)
10K6.21 mi3.10 mi7900+3536827+2466827+2467537(Top 26%)6581(Top 40%)6581(Top 352%)
15K9.32 mi3.11 mi7038+8626228+5996228+5995279(Top 18%)4895(Top 30%)4895(Top 262%)
20K12.43 mi3.11 mi6676+3625958+2705958+2705844(Top 20%)5296(Top 32%)5296(Top 284%)
HALF13.11 mi0.68 mi6729-535995-375995-377525(Top 26%)6558(Top 40%)6558(Top 351%)
25K15.53 mi2.42 mi6712+175977+185977+186708(Top 23%)5901(Top 36%)5901(Top 316%)
30K18.64 mi3.11 mi6779-676008-316008-317176(Top 25%)6109(Top 37%)6109(Top 327%)
20M20.00 mi1.36 mi7114-3356231-2236231-22311695(Top 40%)8399(Top 51%)8399(Top 450%)
21M21.00 mi1.00 mi7491-3776468-2376468-23714944(Top 51%)9772(Top 60%)9772(Top 523%)
35K21.75 mi0.75 mi7985-4946760-2926760-29220603(Top 71%)12274(Top 75%)12274(Top 657%)
23M23.00 mi1.25 mi8202-2176857-976857-9712906(Top 44%)8762(Top 54%)8762(Top 469%)
24M24.00 mi1.00 mi8459-2576969-1126969-11214810(Top 51%)9518(Top 58%)9518(Top 510%)
40K24.85 mi0.85 mi8671-2127064-957064-9514794(Top 51%)9405(Top 58%)9405(Top 503%)
25.2M25.20 mi0.35 mi8785-1147110-467110-4615857(Top 55%)9885(Top 60%)9885(Top 529%)
FINISH26.22 mi1.02 mi9150-3657298-1887298-18818236(Top 63%)10992(Top 67%)10992(Top 588%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21
+97ft-345ft

Overall

5279

Males

4895

M50-54

4895

5K→10K

3.1 - 6.2 mi

Top 26%
×5
+79ft-138ft

Overall

7537

Males

6581

M50-54

6581

10K→15K

6.2 - 9.3 mi

Top 18%
×3
+67ft-78ft

Overall

5279

Males

4895

M50-54

4895

15K→20K

9.3 - 12.4 mi

Top 20%
×5
+106ft-86ft

Overall

5844

Males

5296

M50-54

5296

20K→HALF

12.4 - 13.1 mi

Top 26%
×2
+19ft-37ft

Overall

7525

Males

6558

M50-54

6558

HALF→25K

13.1 - 15.5 mi

Top 23%
×4
+66ft-88ft

Overall

6708

Males

5901

M50-54

5901

25K→30K

15.5 - 18.6 mi

Top 25%
×9
+181ft-148ft

Overall

7176

Males

6109

M50-54

6109

30K→20M

18.6 - 20.0 mi

Top 40%
×5
+64ft-50ft

Overall

11695

Males

8399

M50-54

8399

20M→21M

20.0 - 21.0 mi

Top 51%
×8
+106ft-24ft

Overall

14944

Males

9772

M50-54

9772

21M→35K

21.0 - 21.8 mi

Top 71%
×7
+17ft-86ft

Overall

20603

Males

12274

M50-54

12274

35K→23M

21.8 - 23.0 mi

Top 44%
×5
+23ft-63ft

Overall

12906

Males

8762

M50-54

8762

23M→24M

23.0 - 24.0 mi

Top 51%
×6
+12ft-82ft

Overall

14810

Males

9518

M50-54

9518

24M→40K

24.0 - 24.9 mi

Top 51%
×1
+6ft-20ft

Overall

14794

Males

9405

M50-54

9405

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1
+13ft-16ft

Overall

15857

Males

9885

M50-54

9885

25.2M→FINISH

25.2 - 26.2 mi

Top 63%
×2
+22ft-21ft

Overall

18236

Males

10992

M50-54

10992

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2074
Passed By
2971
Net Change
-897
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8253
5K → 10K41562+353#8253#7900
10K → 15K8631+862#7900#7038
15K → 20K37715+362#7038#6676
20K → HALF962-53#6676#6729
HALF → 25K120103+17#6729#6712
25K → 30K121188-67#6712#6779
30K → 20M22357-335#6779#7114
20M → 21M14391-377#7114#7491
21M → 35K9503-494#7491#7985
35K → 23M50267-217#7985#8202
23M → 24M26283-257#8202#8459
24M → 40K21233-212#8459#8671
40K → 25.2M10124-114#8671#8785
25.2M → FINISH17382-365#8785#9150
TOTALS20742971-897
📊

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