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BOSTON MARATHON 2026

Jason Korbel

Bib: 4418•M

IA

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 18%
Gender (Male)
#0 / 16340
Top 28%
Masters (Masters Men)
#0 / 10617
Top 14%
Age Group (M45-49)
#0 / 2413
Top 18%
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
20:39
3.11 mi
Rank: #5382
Start → 5K
20:39 | 6:39/mi
10K
41:13
6.21 mi
Rank: #5266 (+116)
5K → 10K
20:34 | 6:38/mi
15K
1:01:47
9.32 mi
Rank: #5191 (+75)
10K → 15K
20:34 | 6:38/mi
20K
1:23:23
12.43 mi
Rank: #5707 (-516)
15K → 20K
21:36 | 6:58/mi
HALF
1:27:42
13.11 mi
Rank: #5553 (+154)
20K → HALF
4:19 | 6:20/mi
25K
1:43:42
15.53 mi
Rank: #5269 (+284)
HALF → 25K
16:00 | 6:36/mi
30K
2:04:58
18.64 mi
Rank: #5100 (+169)
25K → 30K
21:16 | 6:51/mi
20M
2:14:35
20.00 mi
Rank: #5186 (-86)
30K → 20M
9:37 | 7:05/mi
21M
2:21:40
21.00 mi
Rank: #5076 (+110)
20M → 21M
7:05 | 7:05/mi
35K
2:26:49
21.75 mi
Rank: #5102 (-26)
21M → 35K
5:09 | 6:54/mi
23M
2:35:36
23.00 mi
Rank: #5105 (-3)
35K → 23M
8:47 | 7:02/mi
24M
2:42:25
24.00 mi
Rank: #5089 (+16)
23M → 24M
6:49 | 6:49/mi
40K
2:48:23
24.85 mi
Rank: #5056 (+33)
24M → 40K
5:58 | 6:59/mi
25.2M
2:50:56
25.20 mi
Rank: #5030 (+26)
40K → 25.2M
2:33 | 7:24/mi
FINISH
2:57:54
26.22 mi
Rank: #5081 (-51)
25.2M → FINISH
6:58 | 6:51/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:27:42
Pace6:42 /mi
2nd Half
Distance13.11 mi
Time1:30:12
Pace6:53 /mi
📊Positive Split: 2.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:5920:396:3920:39
6:39
-
10K
6.21 mi10:43:3341:136:3820:34
6:38
-0:01
15K
9.32 mi11:04:071:01:476:3820:34
6:38
0:00
20K
12.43 mi11:25:431:23:236:4321:36
6:58
+0:20
HALF
13.11 mi11:30:021:27:426:424:19
6:20
-0:38
25K
15.53 mi11:46:021:43:426:4116:00
6:36
+0:16
30K
18.64 mi12:07:182:04:586:4321:16
6:51
+0:15
20M
20.00 mi12:16:552:14:356:449:37
7:05
+0:14
21M
21.00 mi12:24:002:21:406:457:05
7:05
0:00
35K
21.75 mi12:29:092:26:496:465:09
6:54
-0:11
23M
23.00 mi12:37:562:35:366:468:47
7:02
+0:08
24M
24.00 mi12:44:452:42:256:476:49
6:49
-0:13
40K
24.85 mi12:50:432:48:236:475:58
6:59
+0:10
25.2M
25.20 mi12:53:162:50:566:472:33
7:24
+0:25
FINISH
26.22 mi13:00:142:57:546:486:58
6:51
-0:33

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

6:20 /mi

Average Pace

6:47 /mi

Slowest Pace

7:24 /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

2:02:18

69% of race

Time at Steady Pace

55:36

31% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:47 /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 mi10:22:5920:396:3920:39
6:39
#5382
10K
6.21 mi10:43:3341:136:3820:34
6:38
#5266
15K
9.32 mi11:04:071:01:476:3820:34
6:38
#5191
20K
12.43 mi11:25:431:23:236:4321:36
6:58
#5707
HALF
13.11 mi11:30:021:27:426:424:19
6:20
#5553
25K
15.53 mi11:46:021:43:426:4116:00
6:36
#5269
30K
18.64 mi12:07:182:04:586:4321:16
6:51
#5100
20M
20.00 mi12:16:552:14:356:449:37
7:05
#5186
21M
21.00 mi12:24:002:21:406:457:05
7:05
#5076
35K
21.75 mi12:29:092:26:496:465:09
6:54
#5102
23M
23.00 mi12:37:562:35:366:468:47
7:02
#5105
24M
24.00 mi12:44:452:42:256:476:49
6:49
#5089
40K
24.85 mi12:50:432:48:236:475:58
6:59
#5056
25.2M
25.20 mi12:53:162:50:566:472:33
7:24
#5030
FINISH
26.22 mi13:00:142:57:546:486:58
6:51
#5081
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

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 mi5382499049905068(Top 17%)4714(Top 29%)4714(Top 195%)
10K6.21 mi3.10 mi5266+1164899+914899+915181(Top 18%)4812(Top 29%)4812(Top 199%)
15K9.32 mi3.11 mi5191+754829+704829+705068(Top 17%)4714(Top 29%)4714(Top 195%)
20K12.43 mi3.11 mi5707-5165245-4165245-4167513(Top 26%)6503(Top 40%)6503(Top 269%)
HALF13.11 mi0.68 mi5553+1545121+1245121+1243299(Top 11%)3175(Top 19%)3175(Top 132%)
25K15.53 mi2.42 mi5269+2844881+2404881+2404126(Top 14%)3869(Top 24%)3869(Top 160%)
30K18.64 mi3.11 mi5100+1694720+1614720+1614735(Top 16%)4321(Top 26%)4321(Top 179%)
20M20.00 mi1.36 mi5186-864787-674787-676145(Top 21%)5334(Top 33%)5334(Top 221%)
21M21.00 mi1.00 mi5076+1104689+984689+983883(Top 13%)3509(Top 21%)3509(Top 145%)
35K21.75 mi0.75 mi5102-264703-144703-146240(Top 22%)5318(Top 33%)5318(Top 220%)
23M23.00 mi1.25 mi5105-34691+124691+125557(Top 19%)4791(Top 29%)4791(Top 199%)
24M24.00 mi1.00 mi5089+164662+294662+295228(Top 18%)4500(Top 28%)4500(Top 186%)
40K24.85 mi0.85 mi5056+334618+444618+445351(Top 18%)4528(Top 28%)4528(Top 188%)
25.2M25.20 mi0.35 mi5030+264588+304588+304593(Top 16%)3921(Top 24%)3921(Top 162%)
FINISH26.22 mi1.02 mi5081-514619-314619-316340(Top 22%)5079(Top 31%)5079(Top 210%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21
+97ft-345ft

Overall

5068

Males

4714

M45-49

4714

5K→10K

3.1 - 6.2 mi

Top 18%
×5
+79ft-138ft

Overall

5181

Males

4812

M45-49

4812

10K→15K

6.2 - 9.3 mi

Top 17%
×3
+67ft-78ft

Overall

5068

Males

4714

M45-49

4714

15K→20K

9.3 - 12.4 mi

Top 26%
×5
+106ft-86ft

Overall

7513

Males

6503

M45-49

6503

20K→HALF

12.4 - 13.1 mi

Top 11%
×2
+19ft-37ft

Overall

3299

Males

3175

M45-49

3175

HALF→25K

13.1 - 15.5 mi

Top 14%
×4
+66ft-88ft

Overall

4126

Males

3869

M45-49

3869

25K→30K

15.5 - 18.6 mi

Top 16%
×9
+181ft-148ft

Overall

4735

Males

4321

M45-49

4321

30K→20M

18.6 - 20.0 mi

Top 21%
×5
+64ft-50ft

Overall

6145

Males

5334

M45-49

5334

20M→21M

20.0 - 21.0 mi

Top 13%
×8
+106ft-24ft

Overall

3883

Males

3509

M45-49

3509

21M→35K

21.0 - 21.8 mi

Top 22%
×7
+17ft-86ft

Overall

6240

Males

5318

M45-49

5318

35K→23M

21.8 - 23.0 mi

Top 19%
×5
+23ft-63ft

Overall

5557

Males

4791

M45-49

4791

23M→24M

23.0 - 24.0 mi

Top 18%
×6
+12ft-82ft

Overall

5228

Males

4500

M45-49

4500

24M→40K

24.0 - 24.9 mi

Top 18%
×1
+6ft-20ft

Overall

5351

Males

4528

M45-49

4528

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1
+13ft-16ft

Overall

4593

Males

3921

M45-49

3921

25.2M→FINISH

25.2 - 26.2 mi

Top 22%
×2
+22ft-21ft

Overall

6340

Males

5079

M45-49

5079

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1586*
Passed By
938
Net Change
+301
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5382
5K → 10K251*135+116#5382#5266
10K → 15K16388+75#5266#5191
15K → 20K31200-516#5191#5707
20K → HALF1540+154#5707#5553
HALF → 25K287*3+284#5553#5269
25K → 30K223*54+169#5269#5100
30K → 20M35121-86#5100#5186
20M → 21M12515+110#5186#5076
21M → 35K3460-26#5076#5102
35K → 23M7376-3#5102#5105
23M → 24M6145+16#5105#5089
24M → 40K7542+33#5089#5056
40K → 25.2M3711+26#5056#5030
25.2M → FINISH3788-51#5030#5081
TOTALS1586*938+301

* 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