I was also in the top 4 split for the Saturday event. Here's my list since Travis wasn't able to accomplish the simple task of not throwing the desklists out.

//Guys
4x Lodestone Golem
4x Steel Hellkite
2x Karn, Silver Golem

//Spells
4x Sphere of Resistance
4x Thorn of Amethyst
4x Chalice of the Void
4x Tangle Wire
3x Smokestack
2x Sculpting Steel
2x Crucible of Worlds

//Mana
1x Black Lotus
1x Mox Sapphire
1x Mox Jet
1x Mox Ruby
1x Mox Emerald
1x Mox Pearl
1x Mana Crypt
1x Sol Ring
1x Mana Vault
1x Tolarian Academy
4x Mishra's Workshop
4x Ancient Tomb
2x City of Traitors
4x Wasteland
1x Strip Mine
2x Rishadan Port

//Sideboard
2x Duplicant
4x Ratchet Bomb
1x Sculpting Steel
1x Ghost Quarter
2x Helm of Possession
3x Pithing Needle
2x Relic of Progenitus

The sideboard was changed at the last minute because I was walking around and didn't see a single Dredge deck in the room. Turns out to have been a good idea to change it around because there was only a single person playing it in the tourney. Originally I had 4x LotV but cut them for Pithing Needles and a Ghost Quarter.

I went 3-0-2 in the swiss and then won the first round of the top 8, splitting in the top 4.