Micro Fields, Macro Problems.
The Scheduling Puzzle of a Major State Rugby League
A major state rugby league needed to schedule a highly complex season mixing Under 5s playing on "micro" fields with seniors playing on full-sized international pitches.
Their standard tools saw every field as a single, unshareable slot, creating artificial bottlenecks, double-booked grounds, and an impossible administrative burden. SchedulOpt delivered a solution that understood the physical nuances of ground capacities.
The Major Problems
- • Phantom bottlenecks & wasted turf
- • High risk of physical double-bookings
- • Spreadsheet "Tetris" administration
The Core Conflict: How a Scheduler Sees the World
Most scheduling software assumes one field equals one game. But in junior rugby league, a single international field can host two "mini" games or four "micro" games simultaneously.
Diverse Venue Configurations
Some grounds possessed two international fields, while others featured one mini field and one international field. The software had to precisely understand the physical geometry of every unique location.
Cross-League Integration
Regional and metro leagues ran internal junior competitions alongside combined age groups. Seniors needed varied alignments, requiring either the same or strictly alternate weekends.
Mid-Season Regrading
Competitions required a full regrade after 6 rounds. The initial schedule had to perfectly balance travel times and ensure competitive equity before the mid-season split occurred.
Dynamic Percentage-Based Stacking
Rule: Sum of match usage percentages on a single ground cannot exceed 100%.
Saturday 9:00 AM - International Field 1 (100% Capacity)
More Than Just Ground Sizes: Interconnected Rules
On top of the geographical puzzle, the conference had several "hard" rules that the schedule had to obey without exception to protect player welfare and maintain competitive equity.
The 100% Capacity Cap
Matches were assigned a usage percentage: micro games take up 25%, and mini games take up 50%. The Ground Capacity Constraint Rule ensured the sum of all match percentages on a single ground never exceeded 100%.
Anchoring Major Fixtures
Using the Partial Fixture Module, pre-existing major competitions (like locked 16-round major draws) were anchored first, providing an immovable framework for the rest of the schedule.
Cross-Competition Pairing
Using Home-Away Pairing rules, associated clubs across different tiers (e.g., Women's Championship and Senior Premiership) were linked to guarantee they played home or away on the exact same dates.
Regrading and Byes
The remaining fixtures were populated by balancing complex bye structures for odd-numbered pools, ensuring competitively balanced crossover matches before the mid-season split.
The Solution: From Chaos to Efficiency
Instead of treating a field as a binary "available/unavailable" slot, SchedulOpt solved this puzzle by introducing dynamic, percentage-based capacity rules. The algorithm autonomously stacked the schedules into single timeslots. What used to be a grueling manual jigsaw puzzle was solved instantly and flawlessly.
Inefficient & High-Risk
- ✕ High risk of accidental double-bookings when trying to overlap games manually in spreadsheets.
- ✕ Vast amounts of field space left completely unused due to artificial software bottlenecks.
- ✕ Impossible to perfectly align Home/Away pairs between junior and senior divisions.
Optimised & Flawless
- ✓ Flawlessly mixed combinations (e.g., 2 Micros + 1 Mini) into single timeslots up to 100% capacity.
- ✓ Mathematically maximized field usage across all unique venue configurations.
- ✓ Successfully anchored smaller competitions around pre-existing major draws.
