Monster Jam is a live motorsport event tour and television show operated by Feld Entertainment.
 The series is sanctioned under the umbrella of the United States Hot Rod Association (USHRA) and takes place primarily in the United States.
 Although individual event formats can vary greatly based on the "intermission" entertainment, the main attraction is always the racing and freestyle competitions by monster trucks.
Ice Follies And Holiday on Ice, Inc. is ice show production subsidiary of Feld Entertainment producing them under the Disney on Ice and ".
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 on Ice" names.
 Feld formed it from the Ice Follies and U.S. Holiday on Ice touring companies.
 The Ice Follies were formed by Eddie Shipstad, Roy Shipstad, and Oscar Johnson in 1936.
Grave Digger is a monster truck racing team in the Feld Entertainment Monster Jam series.
 There are nine Grave Diggers being driven by different drivers to allow them to make appearances at more events, but their flagship driver is creator Dennis Anderson.
 Dennis Anderson is the head of the Grave Digger department team.
 He is in charge of the training of the younger drivers and the fleet of trucks.
 Grave Digger is considered to be one of the most influential and iconic monster trucks of all time.
Ralph Sheheen (born August 23, 1964) is currently one of the lead broadcasters of the NASCAR Camping World Truck Series, NASCAR Xfinity Series on NBCSN and AMA superbike racing on Fox Sports, and is the lead commentator of Feld Entertainment's supercross broadcasts (which air both on Fox and CBS).
 He also is the co-owner of the "Speed Sport" franchise through his stake in Turn 3 Media, LLC, which publishes the aforementioned magazine, the Web site, and both radio and television shows.
The United States Hot Rod Association (USHRA) is an organization owned by Feld Entertainment that markets various motorsports.
 These include monster trucks (Monster Jam and Thunder Nationals) as well as motocross, quad racing and others.
 According to their own statistics, more than 2.5 million people attended events in 2003.
Kenneth Jeffrey Feld (born 1948 in Washington, DC) is the CEO of Feld Entertainment, which has operated the now closed Ringling Bros. and Barnum & Bailey Circus, Disney on Ice, Doodlebops Live, Disney Live, Monster Jam, International Hot Rod Association, and AMA Supercross Championship.
 He is also the producer of several Broadway plays.
 The business was started by his father Irvin Feld who also promoted Beatles concerts, and Ken became CEO upon his father's death in 1984.
Irvin Feld (April 19, 1918 – September 6, 1984) was an American businessman.
 He was the head of Ringling Bros. and Barnum & Bailey Circus and founder of Feld Entertainment.
 He was a music promoter who is credited with discovering Paul Anka.
Monsters of Destruction was a television show and racing series featuring monster trucks .
 It was broadcast on the Outdoor Channel until its demise in 2006 .
 The series was promoted by Milestone Motorsports , a marketing company specializing in monster trucks and produced by Simz Productions of Sacramento, CA .
 It was formed in 2005 , and featured primarily trucks under Milestone's banner, including Bigfoot, Dragon Slayer, Samson, Obsession, Spider-Man and occasional appearances by Bounty Hunter and Iron Outlaw.
 It was characterized by a more racing-focused format than its main competitor, Monster Jam.
Nicole Michelle Johnson (born January 16, 1974) is an American professional monster truck driver and competition rock crawler.
 Born in Oxnard, California and residing in Las Vegas, Nevada, the mother of two boys is the driver of the Scooby-Doo Monster Jam truck, which is owned and operated by Feld Motorsports, a division of Feld Entertainment.
"Monster Jam" is a live motorsport event tour and television show operated by Feld Entertainment The series is sanctioned under the umbrella of the United States Hot Rod Association (USHRA) and takes place primarily in the United States.
 Although individual event formats can vary greatly based on the "intermission" entertainment, the main attraction is always the racing and freestyle competitions by monster trucks. Several licensed "Monster Jam" video games have been made, generally under the "Monster Jam" brand name.

Question: Monsters of Destruction is the more racing focused version of what Feld Entertainment event?
Answer: Monster Jam