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BOSTON MARATHON 2026

Jonathan Corso

Bib: 12647β€’M

GA

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0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M55-59)
#0 / 1491
Race Day Weather
51Β°/41Β°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
28:16
3.11 mi
Rank: #23060
Start β†’ 5K
28:16 | 9:06/mi
10K
56:11
6.21 mi
Rank: #22925 (+135)
5K β†’ 10K
27:55 | 9:00/mi
15K
1:24:59
9.32 mi
Rank: #23221 (-296)
10K β†’ 15K
28:48 | 9:17/mi
20K
1:55:07
12.43 mi
Rank: #23594 (-373)
15K β†’ 20K
30:08 | 9:42/mi
HALF
2:01:43
13.11 mi
Rank: #23658 (-64)
20K β†’ HALF
6:36 | 9:41/mi
25K
2:27:11
15.53 mi
Rank: #24008 (-350)
HALF β†’ 25K
25:28 | 10:31/mi
30K
3:04:40
18.64 mi
Rank: #24766 (-758)
25K β†’ 30K
37:29 | 12:04/mi
20M
3:21:49
20.00 mi
Rank: #25014 (-248)
30K β†’ 20M
17:09 | 12:38/mi
21M
3:35:52
21.00 mi
Rank: #25260 (-246)
20M β†’ 21M
14:03 | 14:03/mi
35K
3:46:01
21.75 mi
Rank: #25477 (-217)
21M β†’ 35K
10:09 | 13:35/mi
23M
4:03:31
23.00 mi
Rank: #25776 (-299)
35K β†’ 23M
17:30 | 14:00/mi
24M
4:17:20
24.00 mi
Rank: #25990 (-214)
23M β†’ 24M
13:49 | 13:49/mi
40K
4:29:16
24.85 mi
Rank: #26123 (-133)
24M β†’ 40K
11:56 | 13:58/mi
25.2M
4:33:56
25.20 mi
Rank: #26133 (-10)
40K β†’ 25.2M
4:40 | 13:32/mi
FINISH
4:46:27
26.22 mi
Rank: #26220 (-87)
25.2M β†’ FINISH
12:31 | 12:17/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:01:43
Pace9:18 /mi
2nd Half
Distance13.11 mi
Time2:44:44
Pace12:34 /mi
πŸ“ŠPositive Split: 35.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:4328:169:0628:16
9:06
-
10K
6.21 mi11:24:3856:119:0327:55
9:00
-0:06
15K
9.32 mi11:53:261:24:599:0828:48
9:17
+0:17
20K
12.43 mi12:23:341:55:079:1630:08
9:42
+0:25
HALF
13.11 mi12:30:102:01:439:186:36
9:41
-0:01
25K
15.53 mi12:55:382:27:119:2925:28
10:31
+0:50
30K
18.64 mi13:33:073:04:409:5537:29
12:04
+1:33
20M
20.00 mi13:50:163:21:4910:0617:09
12:38
+0:34
21M
21.00 mi14:04:193:35:5210:1714:03
14:03
+1:25
35K
21.75 mi14:14:283:46:0110:2410:09
13:35
-0:28
23M
23.00 mi14:31:584:03:3110:3617:30
14:00
+0:25
24M
24.00 mi14:45:474:17:2010:4413:49
13:49
-0:11
40K
24.85 mi14:57:434:29:1610:5111:56
13:58
+0:09
25.2M
25.20 mi15:02:234:33:5610:534:40
13:32
-0:26
FINISH
26.22 mi15:14:544:46:2710:5612:31
12:17
-1:15

Checkpoint Splits Visualizations

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

πŸ“ˆPace 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

9:00 /mi

Average Pace

10:56 /mi

Slowest Pace

14:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

πŸ“ŠSegments

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

2:27:11

51% of race

Time at Steady Pace

1:07:09

23% of race

Time at Slower Pace

1:12:07

25% of race

Average Pace: 10:55 /mi

Loading chart...
Faster pace (< avg)
Steady pace (β‰ˆ 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 mi10:56:4328:169:0628:16
9:06
#23060
10K
6.21 mi11:24:3856:119:0327:55
9:00
#22925
15K
9.32 mi11:53:261:24:599:0828:48
9:17
#23221
20K
12.43 mi12:23:341:55:079:1630:08
9:42
#23594
HALF
13.11 mi12:30:102:01:439:186:36
9:41
#23658
25K
15.53 mi12:55:382:27:119:2925:28
10:31
#24008
30K
18.64 mi13:33:073:04:409:5537:29
12:04
#24766
20M
20.00 mi13:50:163:21:4910:0617:09
12:38
#25014
21M
21.00 mi14:04:193:35:5210:1714:03
14:03
#25260
35K
21.75 mi14:14:283:46:0110:2410:09
13:35
#25477
23M
23.00 mi14:31:584:03:3110:3617:30
14:00
#25776
24M
24.00 mi14:45:474:17:2010:4413:49
13:49
#25990
40K
24.85 mi14:57:434:29:1610:5111:56
13:58
#26123
25.2M
25.20 mi15:02:234:33:5610:534:40
13:32
#26133
FINISH
26.22 mi15:14:544:46:2710:5612:31
12:17
#26220
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 mi23060137651376523737(Top 82%)14126(Top 86%)14126(Top 947%)
10K6.21 mi3.10 mi22925+13513711+5413711+5422769(Top 78%)13651(Top 84%)13651(Top 916%)
15K9.32 mi3.11 mi23221-29613864-15313864-15323737(Top 82%)14126(Top 86%)14126(Top 947%)
20K12.43 mi3.11 mi23594-37314043-17914043-17924303(Top 84%)14378(Top 88%)14378(Top 964%)
HALF13.11 mi0.68 mi23658-6414074-3114074-3124855(Top 86%)14626(Top 90%)14626(Top 981%)
25K15.53 mi2.42 mi24008-35014238-16414238-16425445(Top 88%)14857(Top 91%)14857(Top 996%)
30K18.64 mi3.11 mi24766-75814578-34014578-34026858(Top 93%)15380(Top 94%)15380(Top 1032%)
20M20.00 mi1.36 mi25014-24814666-8814666-8827067(Top 93%)15428(Top 94%)15428(Top 1035%)
21M21.00 mi1.00 mi25260-24614769-10314769-10327356(Top 94%)15528(Top 95%)15528(Top 1041%)
35K21.75 mi0.75 mi25477-21714857-8814857-8828079(Top 97%)15836(Top 97%)15836(Top 1062%)
23M23.00 mi1.25 mi25776-29914977-12014977-12028136(Top 97%)15874(Top 97%)15874(Top 1065%)
24M24.00 mi1.00 mi25990-21415067-9015067-9028226(Top 97%)15899(Top 97%)15899(Top 1066%)
40K24.85 mi0.85 mi26123-13315107-4015107-4027860(Top 96%)15717(Top 96%)15717(Top 1054%)
25.2M25.20 mi0.35 mi26133-1015111-415111-426714(Top 92%)15135(Top 93%)15135(Top 1015%)
FINISH26.22 mi1.02 mi26220-8715141-3015141-3027717(Top 96%)15640(Top 96%)15640(Top 1049%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
Γ—21
+97ft-345ft

Overall

23737

Males

14126

M55-59

14126

5K→10K

3.1 - 6.2 mi

Top 78%
Γ—5
+79ft-138ft

Overall

22769

Males

13651

M55-59

13651

10K→15K

6.2 - 9.3 mi

Top 82%
Γ—3
+67ft-78ft

Overall

23737

Males

14126

M55-59

14126

15K→20K

9.3 - 12.4 mi

Top 84%
Γ—5
+106ft-86ft

Overall

24303

Males

14378

M55-59

14378

20K→HALF

12.4 - 13.1 mi

Top 86%
Γ—2
+19ft-37ft

Overall

24855

Males

14626

M55-59

14626

HALF→25K

13.1 - 15.5 mi

Top 88%
Γ—4
+66ft-88ft

Overall

25445

Males

14857

M55-59

14857

25K→30K

15.5 - 18.6 mi

Top 93%
Γ—9
+181ft-148ft

Overall

26858

Males

15380

M55-59

15380

30K→20M

18.6 - 20.0 mi

Top 93%
Γ—5
+64ft-50ft

Overall

27067

Males

15428

M55-59

15428

20M→21M

20.0 - 21.0 mi

Top 94%
Γ—8
+106ft-24ft

Overall

27356

Males

15528

M55-59

15528

21M→35K

21.0 - 21.8 mi

Top 97%
Γ—7
+17ft-86ft

Overall

28079

Males

15836

M55-59

15836

35K→23M

21.8 - 23.0 mi

Top 97%
Γ—5
+23ft-63ft

Overall

28136

Males

15874

M55-59

15874

23M→24M

23.0 - 24.0 mi

Top 97%
Γ—6
+12ft-82ft

Overall

28226

Males

15899

M55-59

15899

24M→40K

24.0 - 24.9 mi

Top 96%
Γ—1
+6ft-20ft

Overall

27860

Males

15717

M55-59

15717

40K→25.2M

24.9 - 25.2 mi

Top 92%
Γ—1
+13ft-16ft

Overall

26714

Males

15135

M55-59

15135

25.2M→FINISH

25.2 - 26.2 mi

Top 96%
Γ—2
+22ft-21ft

Overall

27717

Males

15640

M55-59

15640

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
591
Passed By
3751
Net Change
-3160
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#23060
5K β†’ 10K334199+135#23060#22925
10K β†’ 15K75371-296#22925#23221
15K β†’ 20K57430-373#23221#23594
20K β†’ HALF973-64#23594#23658
HALF β†’ 25K35385-350#23658#24008
25K β†’ 30K22780-758#24008#24766
30K β†’ 20M17265-248#24766#25014
20M β†’ 21M7253-246#25014#25260
21M β†’ 35K4221-217#25260#25477
35K β†’ 23M2301-299#25477#25776
23M β†’ 24M5219-214#25776#25990
24M β†’ 40K10143-133#25990#26123
40K β†’ 25.2M515-10#26123#26133
25.2M β†’ FINISH996-87#26133#26220
TOTALS5913751-3160
πŸ“Š

Passing Analysis Visualizations

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

Time:
Category:

πŸ“ˆPosition Graph

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🎨Heatmap Timeline

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πŸ”„Passing Circle

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🌊Position Flow

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πŸƒRace 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