RACKU UP ARENA is an app that easily records billiards matches and visualizes skill levels accurately and in an entertaining way using Glicko-2 ratings with custom rules.
Join a match via QR code, enter scores in real time, and automatically update ratings in the backend after the match is completed. Supports 8/9/10 balls, and flexible settings for handicaps and break methods are also available.
Key Features
・Match Creation: Set rules (8/9/10 balls), handicaps, target points, and break method (winner break/alternate).
・QR Join: Easily join a match by scanning a QR code.
・Scoreboard: Add and record scores in real time.
・Automatic Rating Update: Update ratings in Glicko-2 after the match is completed. Automatically reflects ratings and match results.
- Individual Performance: Manage and view ratings, wins/losses, points, etc. by rule.
Rating Features (Custom)
- Calculation by Rack: Reflects not only the overall win/loss of the match, but also the results of each individual rack.
- Winner Bonus: After rack-by-rack calculation, an additional bonus is awarded to the match winner.
- RD Specifications: Disables RD increases over time and changes based only on actual match results.
*Future rule expansions, such as "special treatment for square breaks," are planned.
Intended Usage
Create a match (set rules, handicap, and break method)
Opponent joins via QR code
Enter scores in real time (+1/square break, etc.)
Ratings are automatically updated on the backend upon completion.
Recommended for:
- Want to accurately evaluate score difference and game content
- Want to view rating fluctuations in more detail
- Want to easily review matches
Camera Usage
The camera is used to scan QR codes (to join a match).
Deleting Your Account and Data
You can delete your account immediately by going to Settings > Delete Account in the app.
You can request deletion online by clicking the "Delete your account and related data" link in the store.
Notes
- The ratings in this app are different from the official ratings of sports organizations.
- Real-time synchronization may be delayed depending on your connection environment.
Future Plans
- Improved match history analysis
- Improved rating visualization
- Various rule expansions
