Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management

Grace Nietvelt

Bib: 4036 β€’F β€’Age: 30

Centreville, VA

Shamrock Marathon - Half logo
0:00
0:00
/ mi
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Overall
#0 / 5662
Top 35%
Gender (Female)
#0 / 3242
Top 24%
Age Group (F30-34)
#0 / 477
Top 28%
Race Day Weather
71Β°/61Β°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
27:55
3.11 mi
Rank: #1550
Start β†’ 5K
27:55 | 9:00/mi
10K
57:16
6.21 mi
Rank: #1755 (-205)
5K β†’ 10K
29:21 | 9:27/mi
15K
1:28:06
9.32 mi
Rank: #1863 (-108)
10K β†’ 15K
30:50 | 9:56/mi
20K
1:59:58
12.43 mi
Rank: #1950 (-87)
15K β†’ 20K
31:52 | 10:16/mi
Finish
2:07:15
13.10 mi
Rank: #1995 (-45)
20K β†’ Finish
7:17 | 10:52/mi
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  • Qualification readiness
  • Segment-by-segment breakdown
  • Personalized race insights
  • Downloadable athlete report
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:04:1527:559:0027:55
9:00
-
10K
6.21 mi08:33:3657:169:1329:21
9:27
+0:27
15K
9.32 mi09:04:261:28:069:2830:50
9:56
+0:29
20K
12.43 mi09:36:181:59:589:4031:52
10:16
+0:20
Finish
13.10 mi09:43:352:07:159:437:17
10:52
+0:36

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

9:43 /mi

Slowest Pace

10:52 /mi

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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

57:16

45% of race

Time at Steady Pace

30:50

24% of race

Time at Slower Pace

39:09

31% of race

Average Pace: 9:43 /mi

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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.

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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 mi08:04:1527:559:0027:55
9:00
#1550
10K
6.21 mi08:33:3657:169:1329:21
9:27
#1755
15K
9.32 mi09:04:261:28:069:2830:50
9:56
#1863
20K
12.43 mi09:36:181:59:589:4031:52
10:16
#1950
Finish
13.10 mi09:43:352:07:159:437:17
10:52
#1995
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF30-34Seg. OverallSeg. FemalesSeg. F30-34
5K3.11 mi3.11 mi1550557942140(Top 38%)861(Top 27%)137(Top 29%)
10K6.21 mi3.10 mi1755-205654-97111-171892(Top 33%)726(Top 22%)119(Top 25%)
15K9.32 mi3.11 mi1863-108714-60116-52140(Top 38%)861(Top 27%)137(Top 29%)
20K12.43 mi3.11 mi1950-87767-53127-112403(Top 42%)1053(Top 32%)176(Top 37%)
Finish13.10 mi0.67 mi1995-45796-29132-52753(Top 49%)1271(Top 39%)208(Top 44%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
Γ—1
+26ft-31ft

Overall

2140

Females

861

F30-34

137

5K→10K

3.1 - 6.2 mi

Top 33%
Γ—2
+38ft-17ft

Overall

1892

Females

726

F30-34

119

10K→15K

6.2 - 9.3 mi

Top 38%
Γ—2
+26ft-44ft

Overall

2140

Females

861

F30-34

137

15K→20K

9.3 - 12.4 mi

Top 42%
Γ—1
+35ft-22ft

Overall

2403

Females

1053

F30-34

176

20K→Finish

12.4 - 13.1 mi

Top 49%
Γ—1
+7ft-13ft

Overall

2753

Females

1271

F30-34

208

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
103
Passed By
513
Net Change
-445
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#1550
5K β†’ 10K30200-205#1550#1755
10K β†’ 15K36144-108#1755#1863
15K β†’ 20K31118-87#1863#1950
20K β†’ Finish651-45#1950#1995
TOTALS103513-445
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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Finisher Certificate

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πŸ† Finisher Certificate
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Activity Data

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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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