stats and facts here: 2013 Mundials Preview and stats
Brackets here http://www.usbjjf.org/bracket_viewer/Bracket.html
Rooster
Semi 1: Malfacine x Dos Santos
Semi 2: Terra x Ivaniel Cavalcante de Oliveira
Final: Terra x Malfacine, Terra wins
Light Feather
Semi 1: Candido x Laercio
Semi 2: Chantre x Mendes
Final: Mendes x Laercio, Mendes wins
Feather
Semi 1: cobrinha x tanquinho
Semi 2: mendes x reis
Final: mendes x cobrinha, mendes wins
Light
Semi 1: langhi x satoshi
Semi 2: lo x lepri
Final: lo x langhi, lo wins
Middle
Semi 1: otavio x DJ
Semi 2: calasans x clark
Final: otavio x clark, clark wins
Medium
Semi 1: barral x tarsis
Semi 2: souza x braulio (i'll go for an unlikely upset win of souza over galvao in the Q/f and over braulio in the semi)
Final: Barral x souza, souza wins
Heavy
Semi 1: vieira x cecconi
Semi 2: xande x alencar
Final: xande x vieira, xande wins (unlikely but i'm rooting for the upset win)
Super
Semi 1: with nogueira injured, faria x assis
Semi 2: lovato x rocha
Final:rocha x faria, rocha wins (anbother upset win)
Ultra
Semi 1: buchecha x trans
Semi 2: cavaca x evangelista
Final: buchecha x cavaca, buchecha wins
Absolute
Brackets tbd - if he is fit an healthy then Buchecha should take this.