The scores in each of the poker site ranking tables below are calculated based on the average ranking and average net cost in the more detailed rankings. For example, to calculate the NL/PL Cash Games rankings, we factor in the rankings and average net cost from the Full Table, Short-Handed, and Heads-Up ranking results. Click on the ranking table title to see the more detailed ranking results (although these will include all sites, not just those with poker software for Mac).