Krystal Square Off
The Krystal Square Off was the official World Hamburger Eating Championship from 2004 to 2009, taking place in Chattanooga, Tennessee and sanctioned by the International Federation of Competitive Eating. In this event, contestants ate as many Krystal hamburgers as possible in eight minutes.
The sole difference between the hamburgers consumed for the Square Off and the hamburgers purchased from Krystal restaurants is that pickles were removed from hamburgers consumed for the event to minimize the risk of choking.
The Krystal Square Off consisted of a qualifying tour and a world championship. In the qualifying tour, amateur eaters competed with professional eaters for a spot at the world championship. In 2004, the first year of the event, local amateurs Sam Vise and Jeff Hicks defeated professionals to earn a position at the world championship.
The two-minute qualifier record stands at 39 Krystals eaten by "Humble" Bob Shoudt in Nashville, 2007.
Citing "significant" demands on company resources, the company cancelled the event in 2010, looking to shift its "marketing focus and efforts" to new products and new store locations.
List of winners
| Date | Name | First | Second | Third | Fourth | Notes | |
| I | November 13, 2004 |  Takeru "Tsunami" Kobayashi | 69 | 46 | 41 | 38 | World Record |
| II | November 19, 2005 | Takeru "Tsunami" Kobayashi | 67 | 62 | 56 | 51 | |
| III | October 28, 2006 | Takeru "Tsunami" Kobayashi | 97 | 91 | 76 | 65 | World Record |
| IV | October 28, 2007 |  Joey "Jaws" Chestnut | 103 | 95 | 94 | 74 | Current World Record |
| V | September 28, 2008 | Joey "Jaws" Chestnut | 93 | 85 | 84 | 76 | Kobayashi finished 3rd |
| VI | September 27, 2009 | Takeru "Tsunami" Kobayashi | 93 | 81 | 76 | 71 | No Dunking World Record |
History
- 2004: Kobayashi consumed 69 Krystals in the 8-minute contest, pocketing $10,000 in prize money. Second place went to "The Black Widow" Sonya Thomas who ate 46, pocketing $5,000.
- 2005: Kobayashi consumed 67 Krystal hamburgers in the 8-minute contest. Second Place went to Joey Chestnut of San Jose, California. Sonya Thomas took third. "Humble" Bob Shoudt of Royersford, Pennsylvania took fourth place. Prize money was $10,000, $5,000, $2,500, $1,500 respectively, for the top four positions.
- 2006: The event, taking place at the First Tennessee Pavilion, was televised live on ESPN2 for the first time. Kobayashi and Chestnut both topped the event's world record near the midpoint of the contest, with Kobayashi taking the victory. Patrick "Deep Dish" Bertoletti, of Chicago also broke the previous world record, finishing third with 76. The winners split a $30,000 purse. An amateur event, dubbed the Krystal Sackful Challenge, was held prior to the main event. It featured two-person teams chosen from the audience, eating as many Krystals as possible in two minutes. The winners of the inaugural challenge were Matt Alling, 24, of Birmingham, and Bruce Clements, 23, of Chattanooga.
- 2007: Joey Chestnut devoured 103 Krystal hamburgers in eight minutes to win the Krystal Square Off IV World Hamburger Eating Championship. The battle for second between 22-year-old Patrick "Deep Dish" Bertoletti and "Humble" Bob Shoudt, 41, ended in an upset. Shoudt, ranked seventh in the world, consumed 95 Krystals to edge out Bertoletti, the number two ranked eater in the world. Chestnut won $10,000 and a Krystal Square Off champion's belt and trophy made out of crystal. Shoudt's runner-up finish earned $7,500, while Bertoletti third-place finish earned $3,500. The winner of the first three competitions, Takeru Kobayashi, did not participate due to a jaw injury.
- 2008: Joey Chestnut defended his title successfully, eating 93 Krystals. Pat "Deep Dish" Bertoletti finished second with 85. Takeru Kobayashi scored 84, 13 fewer than his 2006 total, to place third.
- 2009: This last edition featured a revised ruleset. First, eaters were no longer allowed to dunk their hamburgers in liquid in an effort to eliminate “detritus” during the competition. Also new this year, every eater was given five Big Angus Burgers at the start of the competition in addition to their tray of Krystal hamburgers. Each Big Angus Burger consumed added five hamburgers to an eater’s total count. Takeru Kobayashi defeated reigning champion Joey Chestnut with a score of 93, earning the $20,000 top prize. Chestnut was second, with 81, and Pat "Deep Dish" Bertoletti finished third, with 76.
- 2010: There has been no event since 2010 as the company changed its "marketing focus and efforts" to new products and new company-owned restaurant locations. It was called off in August.
A list of contestants
100 burgers or more ("The Double Tre Double Deuce")
- Joey "Jaws" Chestnut - 103
90 burgers or more ("The Triple Tre")
- Takeru "Tsunami" Kobayashi - 97
- "Humble" Bob Shoudt - 95
- Patrick "Deep Dish" Bertoletti - 94
80 burgers or more ("The Double Tre and a Deuce")
70 burgers or more ("The Double Tre and a Half Deuce")
- Tim Janus - 74
60 burgers or more ("The Double Tre")
- Hall Hunt - 63
- Sonya "The Black Widow" Thomas - 62
50 burgers or more ("The Deuce Tre")
- Juliet Lee - 55
- Chip Simpson - 55
- Rich "The Locust" LeFevre - 53
- Shaun Kesler - 52
- Eric "Badlands" Booker - 51
- Juris Shibayama - 51
- Crazy Legs Conti - 50
- Erik "The Red" Denmark - 50
40 burgers or more ("The Double Deuce")
- Tim "Gravy" Brown - 45
- Jim "Buffalo" Reeves - 44
- Arturo "The Natural" Rios - 44
- Allen "The Shredder" Goldstein - 42
- Seaver "The Achiever" Miller - 41
30 burgers or more ("The Tre")
- Dale Boone - 38
- Elizabeth Canady - 38
- Ron Koch - 37
- Justin Mih - 36
- Eric "Steakbellie" Livingston - 35
- RJ Frasca - 35
- Sam Vise - 35
- Micah "Wing Kong" Collins - 33
- Lynn Curley - 33
- Charles "The Godfather" Hardy - 33
- Ed "Cookie" Jarvis - 33
- Chris Abatsas - 32
- Nathan Biller - 32
- Pete "Pretty Boy" Davekos - 32
- Russ Keeler - 31
- Rick Petralia - 31
- Dave "U.S. Male" Goldstein - 30
- Cade Hardin - 30
- Carlene LeFevre - 30
- Kevin Ross - 30
- Loren "Bubba" Yarbrough - 30