Well, I have finally got my 100 arena wins in a row award. and haven't lost any battles yet, winning 20 per day
However, Graybeard , Spock and Nfkc are still miles ahead (44-68 points) of me in the Arena standings, even though I have used my 20 fights for today.And Graybeard and Nfkc haven't moved yet.
You get more points if you fight players with higher points (eg. choosing the top row). There may also be some strategy involved with fight toward the end or the beginning of the day as well, especially the first day.