What tennis tournament was hosted at a AAA Four Diamond luxury hotel and casino in Paradise, Nevada?
The Alan King Tennis Classic
Caesars Palace
Caesars Palace is a AAA Four Diamond luxury hotel and casino in Paradise, Nevada, United States.
 The hotel is situated on the west side of the Las Vegas Strip between Bellagio and The Mirage.
 It is one of the most prestigious casino hotels in the world and one of Las Vegas's largest and best known landmarks.
Alan King Tennis Classic
The Alan King Tennis Classic was a men's tennis tournament held in Las Vegas, Nevada from 1972-1985.
 It was an event of the WCT Tour in 1972 before joining the Grand Prix tennis circuit from 1978 until 1985, and was one of the major ranking tournaments of both tours.
 It was part of the Grand Prix Super Series between 1972 and 1981.
 The event was hosted by American comedian Alan King and was played on outdoor hard courts of the Caesars Palace hotel.
Semiahmoo Resort
Semiahmoo Resort is a golfing resort and spa overlooking Semiahmoo Bay, opposite Blaine, Washington, northwest of Bellingham in the northwestern coast of the United States.
 Set within 1100 acre , it lies on a long sandy spit in the northern part of Puget Sound near the Canada–US border.
 The name of the resort takes its name from the name of the Semiahmoo indigenous people in whose language means "half moon", describing the crescent shaped land the resort is now built on.
 The golf resort opened in 1994 and is home to the Loomis Trail Golf Club and Semiahmoo Golf and Country Club, set further south of the sandy spit along the coast.
 The latter was designed by Arnold Palmer and was voted the 6th best golf course in Washington state by "Golfweek" in 2011.
 The resort hosts the Jeff Coston Academy, a notable golf academy.
 The AAA four diamond hotel, located at Semiahmoo Point, has 198 deluxe guest rooms including 28 suites. Vancouver Marriott Pinnacle Downtown Hotel
Vancouver Marriott Pinnacle Downtown is a CAA/AAA Four Diamond hotel in Vancouver, British Columbia, Canada. Seneca Allegany Casino
Seneca Allegany Casino is a resort, hotel, and casino in Salamanca, New York.
 It is owned by the Seneca Nation of New York.
 The complex consists of 68300 sqft of gaming space, a spa, six restaurants, and has 413 hotel rooms.
 The Seneca Allegany Events Center, a multi-purpose facility that can host up to 2,400 guests, is also located on the property.
 In 2015, the Seneca Allegany Casino was awarded AAA Four Diamond Award status for the seventh consecutive year. L'Enfant Plaza Hotel
The L'Enfant Plaza Hotel is a hotel located in downtown Washington, D.C., in the United States.
 It was designed by architect Vlastimil Koubek, and named after Pierre Charles L'Enfant, the first surveyor and designer of the street layout of the city.
 It was inaugurated on May 31, 1973.
 The hotel is listed as a Mobile 4-star and AAA 4-Diamond Luxury Hotel. Tulalip Resort Casino
Tulalip Resort Casino is an Indian casino and resort in Quil Ceda Village, Washington, owned and operated by the Tulalip Tribes of Washington.
 It opened in 2004 as Tulalip Casino, and was renamed in late 2007 because of the new hotel, which opened August 15, 2008.
 In addition to the AAA Four Diamond award-winning 12-story hotel with 370 rooms and suites, the resort includes 192,000 sqft of gaming space.
 The property has 7 restaurants: Tulalip Bay, Blackfish, Cedars Cafe, The Draft Bar and Grill, Journeys East, Eagles Buffet and Canoes Carvery.
 The T Spa is the resort's onsite spa and features 14,000 sqft of treatment rooms.
 There are also meeting facilities, and the Canoes Cabaret, Orca Ballroom, and Tulalip Amphitheatre for entertainment events. The Pfister Hotel
The Pfister Hotel is a luxury AAA Four Diamond Award hotel in downtown Milwaukee, Wisconsin, United States.
 The Pfister Hotel is a member of Historic Hotels of America, the official program of the National Trust for Historic Preservation. Disney's Grand Floridian Resort &amp; Spa
Disney's Grand Floridian Resort & Spa is a AAA Four Diamond Award–winning, Victorian themed luxury hotel and spa located at the Walt Disney World Resort in Florida.
 The property opened on June 28, 1988 as the "Grand Floridian Beach Resort".
 The name changed to "Disney's Grand Floridian Resort & Spa" during the fall of 1997.
 The resort contains 867 rooms among six buildings at an average of 400 sqft per room.
 The resort is owned and operated by Walt Disney Parks and Resorts. Hamilton Hotel (Washington, D.C.)
The Hamilton Hotel, formerly known as the Hamilton Crowne Plaza, is an AAA 4-diamond luxury hotel in downtown Washington, D.C., United States, located at 1001 14th Street, N.W., just to the north of Franklin Square.
 In September 2017, the hotel became independent from the Crowne Plaza hotel chain.