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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON HALF 2025

Madison Porter

Bib: 4890 •F •Age: 24

Smithfield, VA

Shamrock Marathon - Half logo
0:00
0:00
/ mi
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Overall
#0 / 5662
Top 49%
Gender (Female)
#0 / 3242
Top 38%
Age Group (F20-24)
Official
#0 / 345
Calculated (F20-24)
#0 / 345
Top 49%
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
31:20
3.11 mi
Rank: #2808
Start → 5K
31:20 | 10:06/mi
10K
1:03:51
6.21 mi
Rank: #2823 (-15)
5K → 10K
32:31 | 10:28/mi
15K
1:36:49
9.32 mi
Rank: #2823
10K → 15K
32:58 | 10:37/mi
20K
2:09:49
12.43 mi
Rank: #2792 (+31)
15K → 20K
33:00 | 10:38/mi
Finish
2:17:01
13.10 mi
Rank: #2771 (+21)
20K → Finish
7:12 | 10:45/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:09:3031:2010:0631:20
10:06
-
10K
6.21 mi08:42:011:03:5110:1732:31
10:28
+0:22
15K
9.32 mi09:14:591:36:4910:2432:58
10:37
+0:09
20K
12.43 mi09:47:592:09:4910:2733:00
10:38
+0:01
Finish
13.10 mi09:55:112:17:0110:287:12
10:45
+0:07

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

10:06 /mi

Average Pace

10:28 /mi

Slowest Pace

10:45 /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

1:03:51

47% of race

Time at Steady Pace

1:13:10

53% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:28 /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...
0mi3.3mi6.5mi9.8mi13.1mi
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 mi08:09:3031:2010:0631:20
10:06
#2808
10K
6.21 mi08:42:011:03:5110:1732:31
10:28
#2823
15K
9.32 mi09:14:591:36:4910:2432:58
10:37
#2823
20K
12.43 mi09:47:592:09:4910:2733:00
10:38
#2792
Finish
13.10 mi09:55:112:17:0110:287:12
10:45
#2771
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF20-24Seg. OverallSeg. FemalesSeg. F20-24
5K3.11 mi3.11 mi280812481662776(Top 49%)1232(Top 38%)172(Top 50%)
10K6.21 mi3.10 mi2823-151257-9165+12895(Top 51%)1295(Top 40%)174(Top 50%)
15K9.32 mi3.11 mi28231251+6170-52776(Top 49%)1232(Top 38%)172(Top 50%)
20K12.43 mi3.11 mi2792+311240+111702719(Top 48%)1240(Top 38%)170(Top 49%)
Finish13.10 mi0.67 mi2771+211232+8168+22649(Top 47%)1202(Top 37%)177(Top 51%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×1
+26ft-31ft

Overall

2776

Females

1232

F20-24

172

5K→10K

3.1 - 6.2 mi

Top 51%
×2
+38ft-17ft

Overall

2895

Females

1295

F20-24

174

10K→15K

6.2 - 9.3 mi

Top 49%
×2
+26ft-44ft

Overall

2776

Females

1232

F20-24

172

15K→20K

9.3 - 12.4 mi

Top 48%
×1
+35ft-22ft

Overall

2719

Females

1240

F20-24

170

20K→Finish

12.4 - 13.1 mi

Top 47%
×1
+7ft-13ft

Overall

2649

Females

1202

F20-24

177

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
326
Passed By
289
Net Change
+37
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2808
5K → 10K115130-15#2808#2823
10K → 15K1111110#2823#2823
15K → 20K7342+31#2823#2792
20K → Finish276+21#2792#2771
TOTALS326289+37
📊

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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AI Key Insights

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Finisher Certificate

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🏆 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

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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?

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