|Location||Silvis, Illinois, U.S.|
|Course(s)||TPC Deere Run|
|Length||7,257 yards (6,636 m) |
|Prize fund||$5.8 million|
|Tournament record score|
|Aggregate||257 Michael Kim (2018)|
|To par||−27 as above|
The John Deere Classic is a professional golf tournament on the PGA Tour. It is played annually in July, the week before the British Open, at TPC Deere Run in the Quad Cities community of Silvis, Illinois.
The tournament began as the Quad Cities Open in 1971 and was a "satellite event" on the PGA Tour. It became an official tour event in 1972.  Ed McMahon served as tournament host from 1975 to 1979. Title sponsors have included Miller Brewing Company (1982–85), Hardee's (1986–94) and John Deere (since 1999).
From the event's inception in 1971 through 1974, it was played at Crow Valley Country Club in Davenport, Iowa. It then moved to Oakwood Country Club in Coal Valley, Illinois from 1975 to 1999. Beginning in 2000, the event has been at the TPC at Deere Run in Silvis. 
In 2005 and 2006, the tournament generated more media coverage because of the sponsor's exemptions given to teenager Michelle Wie. In 2005, the tournament's storyline also revolved around Sean O'Hair, whose win qualified him to play in The Open the following week and was a significant part of his PGA Tour Rookie of the Year season. The 2013 edition saw Jordan Spieth, two weeks shy of his 20th birthday, become the first teenager to win on the PGA Tour since 1931. 
In order to help attract players who will compete in the following week's British Open, since 2008 the John Deere Classic has sponsored a charter flight that leaves the Quad Cities on Sunday night and arrives in Britain the next morning.  
Since the introduction of the Open Qualifying Series, the John Deere Classic is a final chance for a player not already exempt to earn entry into The Open if he finished in the top five.
Michelle Wie first received a sponsor's exemption to play in the John Deere Classic in 2005, part of her effort to make the cut in a men's professional golf event. The tournament attracted thousands of visitors as fans flocked to see the 15-year-old Wie play. She posted a 70 (−1) in the first round and was four-under for the tournament after 32 holes, but then had a double bogey and bogey on successive holes. Wie finished with two pars to shoot 141 (−1) and missed the cut by two strokes. 
Wie received a sponsor's exemption again in 2006; it was her first men's event with a cut since making the cut in a men's tournament for the first time earlier that year in Korea. She finished the first round at 77 (+6), well behind the projected cut line of −2. In the moderate afternoon heat (88 °F (31 °C)) of the second day, she fell two strokes further behind after a double bogey at the 9th hole and withdrew from the tournament,  citing heat exhaustion. After receiving treatment at the course medical trailer, Wie departed in an ambulance, as required by state law. 
- As a satellite event 
Quad Cities Open
Through 2016, six men have won the John Deere Classic more than once.
- 3 wins
- 2 wins
- "Tournament at a glance". John Deere Classic. 2012. Archived from the original on July 7, 2012. Retrieved July 10, 2012.
- History: John Deere Classic
- "Inside the course: TPC Deere Run". PGA Tour. July 9, 2012. Archived from the original on July 12, 2012. Retrieved July 10, 2012.
- "Jordan Spieth, 19, takes John Deere". ESPN. July 14, 2013. Retrieved July 14, 2013.
- Sherman, Ed (July 8, 2008). "John Deere Classic finds novel way to attract players". Chicago Tribune. Retrieved July 14, 2013.
- Hoggard, Rex (July 4, 2011). "Air Deere draws Open crowd to John Deere". Golf Channel. Retrieved July 14, 2013.
- "Michelle Wie scorecard: 2005 John Deere Classic". Yahoo Sports. Retrieved July 10, 2012.
- "Michelle Wie scorecard: 2006 John Deere Classic". Yahoo Sports. Retrieved July 10, 2012.
- "Wie withdraws due to heat exhaustion at John Deere Classic". PGA Tour. July 14, 2006. Archived from the original on July 16, 2006. Retrieved July 10, 2012.
- John Deere Classic – Winners – at pgatour.com
- John Deere Classic – Winners Archived 2014-07-14 at the Wayback Machine. – at golfobserver.com (1972–2009)