This is a score predictor for ODI matches based on the Duckworth-Lewis Method's basic tables.
This does not use the professional edition, and is not the way that they intended the system to be used, however, I have found it to be a good guide as to what a team is going to get.
This tends to underestimate the value of wickets if a team has a clear distinction between batsmen and bowlers, and overestimate the value of wickets if a team has a lot of all rounders.
Accordingly, as a general rule India, Sri Lanka and Bangladesh have tended to score slightly less than the expected score, whilst New Zealand, Pakistan and South Africa have tended to score slightly more. However that's only a general trend, rather than a firm rule.