How matches work
What the engine uses, why upsets happen, and what you control.
Matches are simulated by the server from the lineups, players, tactics, fitness, form, and match context at kickoff. The same inputs always produce the same result. It's deterministic, not a black box.
What the engine uses
Player ability estimates, fitness and availability, position fit, team form and morale, tactical settings, and bounded randomness. It never uses payments, cosmetics, or seniority.
Why upsets happen
Better teams usually create better chances, but football isn't deterministic. A weaker side can win through chance quality, tactical fit, finishing variance, or match events, and the report explains it.
What you control
Your lineup, formation, broad tactics, squad depth, and transfers. You can't control every shot, referee decision, or bounce.