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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

Jj Jacobson

Bib: 9379 •F •Age: 56

Norfolk, VA

Shamrock Marathon - Half logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 5662
Gender (Female)
#0 / 3242
Masters (Masters Women)
#0 / 1369
Age Group (F55-59)
#0 / 215
Race Day Weather
71°/61°F
overcast clouds
Personalized for Jj

Your Race Performance Report is ready

See how your race unfolded, where your performance changed, and what to focus on next.

Personalized by MyRace AI
Preview insight
Your pace by distance
Fastest segment · 11:52/mi at mile 3.1

Your report includes

  • Race Overview
  • Pacing & Splits
  • Performance Analysis
  • Segment Analysis
  • Passing Analysis
  • Potential Focus Areas
One-time purchase · Instant access · Downloadable PDF · Shareable report

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
36:51
3.11 mi
Rank: #4363
Start → 5K
36:51 | 11:52/mi
10K
1:17:06
6.21 mi
Rank: #4505 (-142)
5K → 10K
40:15 | 12:58/mi
15K
1:59:13
9.32 mi
Rank: #4554 (-49)
10K → 15K
42:07 | 13:34/mi
20K
2:41:12
12.43 mi
Rank: #4542 (+12)
15K → 20K
41:59 | 13:31/mi
Finish
2:50:52
13.10 mi
Rank: #4567 (-25)
20K → Finish
9:40 | 14:26/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:17:1236:5111:5236:51
11:52
-
10K
6.21 mi08:57:271:17:0612:2540:15
12:58
+1:06
15K
9.32 mi09:39:341:59:1312:4842:07
13:34
+0:36
20K
12.43 mi10:21:332:41:1212:5941:59
13:31
-0:03
Finish
13.10 mi10:31:132:50:5213:039:40
14:26
+0:55

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

11:52 /mi

Average Pace

13:03 /mi

Slowest Pace

14:26 /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

1:17:06

45% of race

Time at Steady Pace

1:24:06

49% of race

Time at Slower Pace

9:40

6% of race

Average Pace: 13:03 /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.

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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 mi08:17:1236:5111:5236:51
11:52
#4363
10K
6.21 mi08:57:271:17:0612:2540:15
12:58
#4505
15K
9.32 mi09:39:341:59:1312:4842:07
13:34
#4554
20K
12.43 mi10:21:332:41:1212:5941:59
13:31
#4542
Finish
13.10 mi10:31:132:50:5213:039:40
14:26
#4567
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi436322871224593(Top 81%)2449(Top 76%)127(Top 59%)
10K6.21 mi3.10 mi4505-1422378-91124-24586(Top 81%)2448(Top 76%)130(Top 60%)
15K9.32 mi3.11 mi4554-492417-39127-34593(Top 81%)2449(Top 76%)127(Top 59%)
20K12.43 mi3.11 mi4542+122417128-14486(Top 79%)2399(Top 74%)126(Top 59%)
Finish13.10 mi0.67 mi4567-252432-15129-14812(Top 85%)2639(Top 81%)137(Top 64%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×1
+26ft-31ft

Overall

4593

Females

2449

F55-59

127

5K→10K

3.1 - 6.2 mi

Top 81%
×2
+38ft-17ft

Overall

4586

Females

2448

F55-59

130

10K→15K

6.2 - 9.3 mi

Top 81%
×2
+26ft-44ft

Overall

4593

Females

2449

F55-59

127

15K→20K

9.3 - 12.4 mi

Top 79%
×1
+35ft-22ft

Overall

4486

Females

2399

F55-59

126

20K→Finish

12.4 - 13.1 mi

Top 85%
×1
+7ft-13ft

Overall

4812

Females

2639

F55-59

137

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
181
Passed By
385
Net Change
-204
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4363
5K → 10K49191-142#4363#4505
10K → 15K53102-49#4505#4554
15K → 20K7260+12#4554#4542
20K → Finish732-25#4542#4567
TOTALS181385-204
📊

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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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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