Your server will not appear in the lists until a game with more than 8 players is played, and no bots are in it. It ignores games that have less than 8 players and bots.
The percentage of games this player will win when playing with average players. More technically speaking, if player A plays with 9 players against 10 other players, all things else being equal (even maps, etc.), this is how often player A will win.
For the player page, this is the average number of games this player has played. If a player only plays half a game, then this would be 0.5. For the maps page, this is the number of times this map has been played with at least 8 players. For the server page, this is the number of games of at least 8 players that a server has seen.
This is just the very last server this player played on.
The probability that nine players will beat 11 players on this server. A higher number means the players on this server are better, and therefore the server is also a harder server.
This is percentage of games the Allies team will win on this map. The closer to 0.5 or 50%, the better. 0.5 would mean the map has no bias towards either team.