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SHAMROCK MARATHON 2026

John Madures

Bib: 1862•M•Age: 53

Chesterfield, VA

0:00
0:00
/ mi
Masters
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Overall
#0 / 2429
Top 32%
Gender (Male)
#0 / 1480
Top 39%
Masters (Masters Men)
#0 / 477
Top 32%
Division (M50-54)
#0 / 77
Top 40%
Race Day Weather
55°/45°F
few clouds

⏱️ Race Timeline

Course Elevation
-8–55 ft
≈
×5story building
•▲ 331 ft climb · ▼ 310 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:51/mi
27:31
↑ 26↓ 31
10K· 6.21 mi
8:46/mi
54:45
↑ 38↓ 170.1%
15K· 9.32 mi
8:43/mi
1:21:49
↑ 26↓ 440.1%
20K· 12.43 mi
8:53/mi
1:49:25
↑ 35↓ 22
Half· 13.10 mi
8:55/mi
1:55:24
↓ 130.2%
30K· 18.64 mi
8:56/mi
2:44:56
↑ 86↓ 72
35K· 21.75 mi
10:23/mi
3:17:12
↑ 39↓ 39
25.2M
10:44/mi
3:54:16
↑ 57↓ 58
Finish· 26.22 mi
10:43/mi
4:05:11
↑ 17↓ 12

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.10 mi
Time1:55:24
Pace8:49 /mi
2nd Half
Distance13.12 mi
Time2:09:47
Pace9:54 /mi
📊Positive Split: 12.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:03:5127:318:5127:31
8:51
-
10K
6.21 mi08:31:0554:458:4927:14
8:46
-0:05
15K
9.32 mi08:58:091:21:498:4727:04
8:43
-0:03
20K
12.43 mi09:25:451:49:258:4827:36
8:53
+0:10
Half
13.10 mi09:31:441:55:248:495:59
8:55
+0:02
30K
18.64 mi10:21:162:44:568:5149:32
8:56
+0:01
35K
21.75 mi10:53:323:17:129:0432:16
10:23
+1:27
25.2M
25.20 mi11:30:363:54:169:1837:04
10:44
+0:21
Finish
26.22 mi11:41:314:05:119:2110:55
10:43
-0:01

Checkpoints & Pacing

📈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

8:43 /mi

Average Pace

9:21 /mi

Slowest Pace

10:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:44:56

67% of race

Time at Slower Pace

1:20:15

33% of race

Average Pace: 9:21 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi08:03:5127:318:5127:31
8:51
#922
10K
6.21 mi08:31:0554:458:4927:14
8:46
#898
15K
9.32 mi08:58:091:21:498:4727:04
8:43
#872
20K
12.43 mi09:25:451:49:258:4827:36
8:53
#869
Half
13.10 mi09:31:441:55:248:495:59
8:55
#852
30K
18.64 mi10:21:162:44:568:5149:32
8:56
#783
35K
21.75 mi10:53:323:17:129:0432:16
10:23
#746
25.2M
25.20 mi11:30:363:54:169:1837:04
10:44
#753
Finish
26.22 mi11:41:314:05:119:2110:55
10:43
#772
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi92269935818(Top 34%)635(Top 43%)29(Top 38%)
10K6.21 mi3.10 mi898+24686+1333+2893(Top 37%)681(Top 46%)33(Top 43%)
15K9.32 mi3.11 mi872+26668+1833818(Top 34%)635(Top 43%)29(Top 38%)
20K12.43 mi3.11 mi869+366832+1879(Top 36%)680(Top 46%)33(Top 43%)
Half13.10 mi0.67 mi852+17657+1132843(Top 35%)656(Top 44%)33(Top 43%)
30K18.64 mi5.54 mi783+69615+4232756(Top 31%)579(Top 39%)30(Top 39%)
35K21.75 mi3.11 mi746+37580+3531+1682(Top 28%)500(Top 34%)26(Top 34%)
25.2M25.20 mi3.45 mi753-7571+931809(Top 33%)542(Top 37%)31(Top 41%)
Finish26.22 mi1.02 mi772-19577-6311211(Top 50%)783(Top 53%)34(Top 45%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×1story
+26ft-31ft

Overall

818

Males

635

M50-54

31

5K→10K

3.1 - 6.2 mi

Top 37%
×2story building
+38ft-17ft

Overall

893

Males

681

M50-54

35

10K→15K

6.2 - 9.3 mi

Top 34%
×2story building
+26ft-44ft

Overall

818

Males

635

M50-54

31

15K→20K

9.3 - 12.4 mi

Top 36%
×1story
+35ft-22ft

Overall

879

Males

680

M50-54

35

20K→Half

12.4 - 13.1 mi

Top 35%
×1human
+7ft-13ft

Overall

843

Males

656

M50-54

34

Half→30K

13.1 - 18.6 mi

Top 31%
×2story building
+86ft-72ft

Overall

756

Males

579

M50-54

31

30K→35K

18.6 - 21.8 mi

Top 28%
×2stacked humans
+39ft-39ft

Overall

682

Males

500

M50-54

27

35K→25.2M

21.8 - 25.2 mi

Top 33%
×3story building
+57ft-58ft

Overall

809

Males

542

M50-54

32

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×1human
+17ft-12ft

Overall

1211

Males

783

M50-54

35

Passing Analysis

Category:
Athletes Passed
303*
Passed By
153
Net Change
+150
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#922
5K → 10K3612+24#922#898
10K → 15K304+26#898#872
15K → 20K24*21+3#872#869
20K → Half18*1+17#869#852
Half → 30K98*29+69#852#783
30K → 35K55*18+37#783#746
35K → 25.2M36*43-7#746#753
25.2M → Finish6*25-19#753#772
TOTALS303*153+150

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

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J & A Racing

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