Keven "Stamdogg" Stammen has multiple victories in the PokerStars $100 Rebuy, PokerStars $50 Rebuy, and Full Tilt $65k Guaranteed and $55k Guaranteed tournaments. From June '07 to June '08, Keven recorded 22 scores of over $10,000 in online tournaments. He final tabled the PokerStars Sunday Million in November 2008 for $55,600 and backed that up with an $84,600 cash for 4th place in the FTOPS X Event #9 just one week later.

In June 2009, Keven won the WSOP $2,500 NLHE Event #13 for $506,786. In December 2011, he finished third in the PokerStars 10th Anniversary High Roller event for $219,000. One year later, he booked a second place finish in an FTOPS $129 NLHE Multi-Entry Knockout event for $72,000.

In October 2012, he recorded three six-figure live scores, including a win in a €2,000 No Limit Hold'em Turbo event at EPT San Remo for $119,000, a second place finish in a €10,000 No Limit Hold'em Eight-Max tournament at EPT San Remo for $213,000, and a runner-up finish in a €4,000 No Limit Hold'em event during the 2012 CAPT European Poker Championship for $117,000.

He closed out 2012 with a bang by taking second in an FTOPS event for $72,000, one of his largest tracked online poker scores to date. In May of the following year, Stammen hit it big in the Sunday Million, chopping it heads-up for $178,000.