PINNACLE ENTERTAINMENT ANNOUNCES EXECUTIVE HIRINGS FOR LUMIÈRE PLACE IN DOWTOWN ST. LOUIS

PINNACLE ENTERTAINMENT, INC.
3800 Howard Hughes Parkway
Las Vegas, Nevada 89109
NYSE: PNK

FOR FURTHER INFORMATION

At The Vandiver Group—(314) 991-4641 ext. 111
Mack A. Bradley, SVP
mbradley@vandivergroup.com

FOR IMMEDIATE RELEASE
May 2, 2007

PINNACLE ENTERTAINMENT ANNOUNCES EXECUTIVE HIRINGS
FOR LUMIÈRE PLACE IN DOWTOWN ST. LOUIS

ST. LOUIS, MO, May 2, 2007 – Pinnacle Entertainment, Inc. (NYSE: PNK) announces two
new additions to the executive management team at Lumière Place, now under construction in
downtown St. Louis.

Jeff Babinski is the new Senior Director of Operations for Lumière Place. Jeff will oversee and
audit all gaming operations on casino floor. In addition, he serves as an integral part of the
Lumière Place executive staff. He joined Pinnacle Entertainment in 2000 and was most recently
the Director of Table Games at the Belterra Casino Resort & Spa in Indiana.
Babinski is pursuing business and finance degree from Xavier University in Cincinnati.

Mario Maesano is the new Senior Director of Marketing. He is responsible for all marketing
programs regarding Lumière Place. Mario came to St. Louis from Pinnacle Entertainment’s
Boomtown Hotel & Casino in Bossier City, Louisiana. He’s also worked at Pinnacle’s Belterra
Casino Resort & Spa in Indiana.

Maesano has a B.S. in Marketing from St. Joseph’s University in Philadelphia and an MBA from
Xavier University in Cincinnati.

About Pinnacle Entertainment
Pinnacle Entertainment owns and operates casinos in Nevada, Louisiana, Indiana, Missouri,
Argentina and The Bahamas; owns a hotel in Missouri; and has significant insurance claims
related to a hurricane-damaged hotel and casino complex previously operated in Biloxi,
Mississippi. Pinnacle also has two casino development projects under construction in the St.
Louis, Missouri area, which are dependent upon final approval by the Missouri Gaming
Commission. Pinnacle is currently developing the Company's second casino resort in Lake
Charles, Louisiana, to be called Sugarcane Bay, and anticipates developing a hotel-casino in
Baton Rouge, Louisiana, subject to various approvals. Additionally, Pinnacle owns a casino site
at the heart of the famed Boardwalk in Atlantic City on which it plans to build a major new
casino resort.

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All statements included in this press release, other than historical information or statements of historical fact, are
"forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. These
forward-looking statements, including statements regarding the Company's future growth, construction projects and
budgets, new development opportunities, and pending acquisitions and divestitures, are based on management's
current expectations and are subject to risks, uncertainties and changes in circumstances that could significantly
affect future results. Accordingly, Pinnacle Entertainment cautions that the forward-looking statements contained
herein are qualified by important factors that could cause actual results to differ materially from those reflected by
such statements. Such factors include, but are not limited to: (a) our substantial funding needs in connection with
our development projects, our current expansion projects and other capital-intensive projects will require us to
raise substantial amounts of money from outside sources; (b) the risk that new projects, expansions, other capital
intensive projects and lower than expected results from the opening of our new facilities could strain the Company's
financial resources and might not provide for a sufficient return, if any; (c) many construction-related factors could
prevent the Company from completing its construction and development projects within budget and on time; (d)
development of our Atlantic City development site presents many risks, and we may not realize the financial and
strategic goals that are contemplated from the development; (e) significant competition facing the Company in all of
its markets; (f) because the Company has considerable leverage, future cash flows may not be sufficient to meet its
financial obligations and the Company might have difficulty obtaining additional financing; (g) issues may arise
with respect to the licenses associated with the Louisiana entities that we plan to utilize for our Sugarcane Bay and
Baton Rouge projects and we may not execute agreements with respect to the land to be acquired for the Sugarcane
Bay project; (h) damage and closures caused by Hurricane Katrina in the New Orleans area make our future
operating results at Boomtown New Orleans less predictable; (i) issues with respect to our insurance policies could
affect our recovery of further insurance proceeds associated with the 2005 hurricane damage and related business
interruption; and (j) other risks, including those as may be detailed from time to time in Pinnacle Entertainment's
filings with the Securities and Exchange Commission ("SEC"). For more information on the potential factors that
could affect the Company's financial results and business, review the Company's filings with the SEC, including its
Annual Report on Form 10-K, its Quarterly Reports on Form 10-Q and its Current Reports on Form 8-K.
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