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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

Catrina Bolin

Bib: 13243 •F •Age: 44

Chicago, IL

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 (F40-44)
Official
#0 / 411
Calculated (F40-44)
#0 / 411
Race Day Weather
71°/61°F
overcast clouds
Personalized for Catrina

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 · 12:15/mi at mile 12.4

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
38:19
3.11 mi
Rank: #4640
Start → 5K
38:19 | 12:20/mi
10K
1:16:41
6.21 mi
Rank: #4460 (+180)
5K → 10K
38:22 | 12:21/mi
15K
1:54:49
9.32 mi
Rank: #4296 (+164)
10K → 15K
38:08 | 12:17/mi
20K
2:32:54
12.43 mi
Rank: #4171 (+125)
15K → 20K
38:05 | 12:16/mi
Finish
2:41:58
13.10 mi
Rank: #4192 (-21)
20K → Finish
9:04 | 13:32/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:24:3438:1912:2038:19
12:20
-
10K
6.21 mi09:02:561:16:4112:2138:22
12:21
+0:01
15K
9.32 mi09:41:041:54:4912:2038:08
12:17
-0:04
20K
12.43 mi10:19:092:32:5412:1938:05
12:16
-0:01
Finish
13.10 mi10:28:132:41:5812:229:04
13:32
+1:16

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

12:16 /mi

Average Pace

12:22 /mi

Slowest Pace

13:32 /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

2:32:54

94% of race

Time at Steady Pace

9:04

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 12:22 /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 mi08:24:3438:1912:2038:19
12:20
#4640
10K
6.21 mi09:02:561:16:4112:2138:22
12:21
#4460
15K
9.32 mi09:41:041:54:4912:2038:08
12:17
#4296
20K
12.43 mi10:19:092:32:5412:1938:05
12:16
#4171
Finish
13.10 mi10:28:132:41:5812:229:04
13:32
#4192
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi464024783143961(Top 70%)2008(Top 62%)242(Top 59%)
10K6.21 mi3.10 mi4460+1802343+135294+204281(Top 76%)2223(Top 69%)275(Top 67%)
15K9.32 mi3.11 mi4296+1642237+106272+223961(Top 70%)2008(Top 62%)242(Top 59%)
20K12.43 mi3.11 mi4171+1252159+78261+113853(Top 68%)1962(Top 61%)233(Top 57%)
Finish13.10 mi0.67 mi4192-212176-17259+24517(Top 80%)2425(Top 75%)294(Top 72%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×1
+26ft-31ft

Overall

3961

Females

2008

F40-44

242

5K→10K

3.1 - 6.2 mi

Top 76%
×2
+38ft-17ft

Overall

4281

Females

2223

F40-44

275

10K→15K

6.2 - 9.3 mi

Top 70%
×2
+26ft-44ft

Overall

3961

Females

2008

F40-44

242

15K→20K

9.3 - 12.4 mi

Top 68%
×1
+35ft-22ft

Overall

3853

Females

1962

F40-44

233

20K→Finish

12.4 - 13.1 mi

Top 80%
×1
+7ft-13ft

Overall

4517

Females

2425

F40-44

294

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
549*
Passed By
101
Net Change
+448
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4640
5K → 10K224*44+180#4640#4460
10K → 15K17915+164#4460#4296
15K → 20K13712+125#4296#4171
20K → Finish930-21#4171#4192
TOTALS549*101+448

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

📊

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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