Powerhouse World Promotions: "War on the Mainland" is all set to air tonight live on pay-per-view from the Bren Events Center in Irvine, California.

The event costs $30 and will feature three PWP championship fights.

Two-time UFC champion Tim Sylvia will trade leather with Paul Buentello for the heavyweight belt. Jason Lambert and Tony Lopez will square off for the light heavyweight gold. And Thales Leites will take on Matt Horwich for the middlweight title.

Former UFC lightweight champion Jens Pulver will also be in action, taking on Bellator veteran Diego Garijo in a lightweight contest.

Here are the complete weigh-in results for "War on the Mainland:"

265 lbs.: Tim "The Maine-iac" Sylvia (274.4) vs. Paul "The Headhunter" Buentello (251.6)
205 lbs.: Jason "The Punisher" Lambert (203.8) vs. Tony "Kryptonite" Lopez (204.6)
185 lbs.: Thales Leites (184.6) vs. Matt "The Fighting Hippie" Horwich (185.4)
155 lbs.: Jens "Little Evil" Pulver (155.4) vs. Diego "El Nino" Garijo (153.8)
170 lbs.: Jorge "The Naked Man" Ortiz (169) vs. Terry Martin (170)
185 lbs.: Gustavo "Ximu" Machado (185.8) vs. RickReeves (183)
155 lbs.: Joao Silva (153.4)vs. Erin Beach (154.4)
155 lbs.: Cleber Luciano (153.8) vs. Todd Willingham (154.8)
170 lbs.: A.J. Matthews (168.8) vs. Sean Choice (169.4)

Remember that MMAmania.com will provide LIVE blow-by-blow, round-by-round coverage of the card, beginning with the pay-per-view telecast at 10 p.m. ET tonight. So check back early and often.

It's going to be a fun night of fights!