Global Poker Index: Marvin Rettenmaier Climbs in Player of the Year and GPI 300

Marvin Rettenmaier made some big moves in the Global Poker Index this week.
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http://www.statisticspoker.com/2013/08/25/global-poker-index-marvin-rettenmaier-climbs-in-player-of-the-year-and-gpi-300/