Glitches :
There is a glitch on the Spectrum version whereby any legs (a single 501 round) the AI scores against you carry over into the next match.
This is easily identifiable with the leg scores on the left. This means if you lose a leg against an opponent in Match 1, for instance, the second match opponent will start 1-0 up instead of 0-0 (each match being best of 3).
Another glitch (possibly intentional) is that the Player only needs to win one leg in the Final against the AI to win. The AI (presuming match starts at 0-0) needs to win 2.
Runs & RNG :
Like many old games, there are patterns to the RNG the game uses to generate dog appearances and pints (that cost time).
When starting a game immediately (no practice attempts first), the starting opponent will always be the same, the dog will always appear in match two, with specific pint appearances.
For this reason, please ensure runs are made from restart, so runs and splits can be compared more effectively.