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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Perry Kukura

Bib: 982 •M •Age: 39

Virginia Bch, VA

Shamrock Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 1949
Gender (Male)
#0 / 1153
Age Group (M35-39)
Official
#0 / 178
Calculated (M35-39)
#0 / 178
Race Day Weather
71°/61°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
27:15
3.11 mi
Rank: #673
Start → 5K
27:15 | 8:47/mi
10K
54:45
6.21 mi
Rank: #681 (-8)
5K → 10K
27:30 | 8:52/mi
15K
1:25:45
9.32 mi
Rank: #879 (-198)
10K → 15K
31:00 | 9:59/mi
20K
1:59:39
12.43 mi
Rank: #1006 (-127)
15K → 20K
33:54 | 10:55/mi
Half
2:07:38
13.10 mi
Rank: #1031 (-25)
20K → Half
7:59 | 11:54/mi
25K
2:40:14
15.53 mi
Rank: #1198 (-167)
Half → 25K
32:36 | 13:24/mi
30K
3:20:01
18.64 mi
Rank: #1351 (-153)
25K → 30K
39:47 | 12:49/mi
35K
4:15:22
21.75 mi
Rank: #1498 (-147)
30K → 35K
55:21 | 17:49/mi
25.2M
5:11:47
25.20 mi
Rank: #1600 (-102)
35K → 25.2M
56:25 | 16:21/mi
Finish
5:25:23
26.22 mi
Rank: #1605 (-5)
25.2M → Finish
13:36 | 13:21/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time2:07:38
Pace9:45 /mi
2nd Half
Distance13.12 mi
Time3:17:45
Pace15:05 /mi
📊Positive Split: 54.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:03:2527:158:4727:15
8:47
-
10K
6.21 mi08:30:5554:458:4927:30
8:52
+0:05
15K
9.32 mi09:01:551:25:459:1331:00
9:59
+1:07
20K
12.43 mi09:35:491:59:399:3833:54
10:55
+0:56
Half
13.10 mi09:43:482:07:389:457:59
11:54
+0:59
25K
15.53 mi10:16:242:40:1410:1932:36
13:24
+1:30
30K
18.64 mi10:56:113:20:0110:4439:47
12:49
-0:35
35K
21.75 mi11:51:324:15:2211:4555:21
17:49
+5:00
25.2M
25.20 mi12:47:575:11:4712:2356:25
16:21
-1:28
Finish
26.22 mi13:01:335:25:2312:2613:36
13:21
-3:00

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

8:47 /mi

Average Pace

12:25 /mi

Slowest Pace

17:49 /mi

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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

1:59:39

37% of race

Time at Steady Pace

1:33:58

29% of race

Time at Slower Pace

1:51:46

34% of race

Average Pace: 12:25 /mi

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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 mi08:03:2527:158:4727:15
8:47
#673
10K
6.21 mi08:30:5554:458:4927:30
8:52
#681
15K
9.32 mi09:01:551:25:459:1331:00
9:59
#879
20K
12.43 mi09:35:491:59:399:3833:54
10:55
#1006
Half
13.10 mi09:43:482:07:389:457:59
11:54
#1031
25K
15.53 mi10:16:242:40:1410:1932:36
13:24
#1198
30K
18.64 mi10:56:113:20:0110:4439:47
12:49
#1351
35K
21.75 mi11:51:324:15:2211:4555:21
17:49
#1498
25.2M
25.20 mi12:47:575:11:4712:2356:25
16:21
#1600
Finish
26.22 mi13:01:335:25:2312:2613:36
13:21
#1605
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM35-39Seg. OverallSeg. MalesSeg. M35-39
5K3.11 mi3.11 mi673488801139(Top 58%)771(Top 67%)125(Top 70%)
10K6.21 mi3.10 mi681-8492-479+1697(Top 36%)502(Top 44%)80(Top 45%)
15K9.32 mi3.11 mi879-198626-13496-171139(Top 58%)771(Top 67%)125(Top 70%)
20K12.43 mi3.11 mi1006-127697-71110-141418(Top 73%)912(Top 79%)143(Top 80%)
Half13.10 mi0.67 mi1031-25708-11114-41464(Top 75%)933(Top 81%)148(Top 83%)
25K15.53 mi2.43 mi1198-167807-99128-141682(Top 86%)1031(Top 89%)160(Top 90%)
30K18.64 mi3.11 mi1351-153874-67138-101757(Top 90%)1062(Top 92%)166(Top 93%)
35K21.75 mi3.11 mi1498-147943-69149-111813(Top 93%)1080(Top 94%)169(Top 95%)
25.2M25.20 mi3.45 mi1600-102992-49155-61849(Top 95%)1096(Top 95%)174(Top 98%)
Finish26.22 mi1.02 mi1605-5993-11551733(Top 89%)1036(Top 90%)168(Top 94%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×1
+26ft-31ft

Overall

1139

Males

771

M35-39

125

5K→10K

3.1 - 6.2 mi

Top 36%
×2
+38ft-17ft

Overall

697

Males

502

M35-39

80

10K→15K

6.2 - 9.3 mi

Top 58%
×2
+26ft-44ft

Overall

1139

Males

771

M35-39

125

15K→20K

9.3 - 12.4 mi

Top 73%
×1
+35ft-22ft

Overall

1418

Males

912

M35-39

143

20K→Half

12.4 - 13.1 mi

Top 75%
×1
+7ft-13ft

Overall

1464

Males

933

M35-39

148

Half→25K

13.1 - 15.5 mi

Top 86%
×2
+48ft-19ft

Overall

1682

Males

1031

M35-39

160

25K→30K

15.5 - 18.6 mi

Top 90%
×2
+38ft-52ft

Overall

1757

Males

1062

M35-39

166

30K→35K

18.6 - 21.8 mi

Top 93%
×2
+39ft-39ft

Overall

1813

Males

1080

M35-39

169

35K→25.2M

21.8 - 25.2 mi

Top 95%
×3
+57ft-58ft

Overall

1849

Males

1096

M35-39

174

25.2M→Finish

25.2 - 26.2 mi

Top 89%
×1
+17ft-12ft

Overall

1733

Males

1036

M35-39

168

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
23
Passed By
955
Net Change
-932
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#673
5K → 10K1422-8#673#681
10K → 15K0198-198#681#879
15K → 20K1128-127#879#1006
20K → Half429-25#1006#1031
Half → 25K0167-167#1031#1198
25K → 30K1154-153#1198#1351
30K → 35K2149-147#1351#1498
35K → 25.2M0102-102#1498#1600
25.2M → Finish16-5#1600#1605
TOTALS23955-932
📊

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

BQ

Boston Qualifying analysis available

Finisher Certificate

Download and share your official race completion certificate

🏆 Finisher Certificate
Download or share your official race finisher certificate
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Your certificate is generated on-demand and can be shared on social media or saved for your records

Activity Data

Upload your GPX file to see detailed activity metrics

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export & Support

Download your data, get help, and share your feedback

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

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