yeah, it's correct. His partner, Malik is also up there with a plus 27 for the season. Their play has been steadier than I think a lot of us expected at the beginning of the season, which has been played a big part in the Rangers success, in my opinion.
I'd also like to add that I think +/- is a bit of an overrated stat.. For example: a player who is instrumental to a play that results in a goal (i.e. takes a big hit to make the outlet pass, etc.) but then ends his shift before the goal is scored does not get a plus on the play, but the player who just stepped on the ice does.
That said, it does give a general indication that a player is doing well (especially when the plus minus is a ways above the bulk of his teammates, as is the case here).
Plus/minus is the worst stat in hockey and it's making Roszival look better than he actually is, BUT that doesn't erase the fact that Roszival has been steady. He's shown he's an effective 4-6 d-man in the NHL.
Malik tied for the lead with Martin St. Louis while playing for Vancouver the year before the strike. He's hovering at about 12th in the league now. Before that with Carolina, even in their cup run year, he was never among the leaders, so when he does it two years in a row, it's a sign it's no fluke.
While the +/- stat is not truely acurate, the fact that Roszival has been able to place so high, with two different teams shows that while he makes mistakes, they are not as costly to the team as one might think. He has played better than expected