The following is from a official press release from the UFC, but as is stated on Bloodyelbow.com, in the sports realm a sell out tends to mean no seats are left togeher so there are likely quite a few singles left:
Las Vegas NV (USA) Las Vegas, NV (USA); Tickets for UFC 100 are SOLD OUT. The historic UFC 100 event, with three blockbuster fights already confirmed, receives a massive response from UFC Fight Club and Newsletter members, creating a sellout in record time.
The Saturday, July 11 event, live from the Mandalay Bay Events Center, will be shown on pay-per-view in the U.S. on iN DEMAND, DIRECTV, DISH Network and TVN, and in Canada on BellTV, Shaw Communications and Viewer’s Choice Canada. Suggested retail price is $44.95 for standard definition or high-definition broadcasts (where available).
“I started hearing about UFC 100 around UFC 90. I am blown away by how excited fans were for this event. So I made sure to stack this card with the greatest fights and greatest fighters in the world, and keep ticket prices consistent with our other big events. Once again, our fans responded with a record sellout. This is another great milestone for the UFC, and July 11 is going to be an amazing event.”
After an epic turnout from the April 9 Internet presale for UFC Fight Club fans, the majority of the seats were sold by 3pm ET, with the official sellout taking place today during the UFC Newsletter presale. The tickets prices were: $1,000, $750, $500, $300, $200 and $100.