The Peoria City Championship was re-instituted in 1997 after a long number of years of not being held.
The format from 1997 to 2006 was a 6 man round robin invitational. The first qualifier was the previous years champion. The second qualifier was the previous year's Greater Peoria Open winner or highest placing local player. The third qualifier was the Membership Tournament winner. The winner of the annual December tournament qualified. The winner of the Class Championships also qualified. The sixth player was an at Large Invitee.
The format was changed in 2007 to include two two player sections with the winners meeting in a playoff match for the title. The first to accumulate 2 points with a lead in score is the match winner. If the score is tied at 2-2, additional 2 games are played at G30d5 and 2 games at G5d3, played in a single meeting.
To be qualified to participate, players must live in the area served by the GPCF or be regular members of the Monday night Kingsmen Chess Club.
* - In 2009 a 10 player round robin was played with the top 2 playing a match for the title
** - In 2008 two six man round robins were played but the final match between Bill Naff & Mike Leali was never rated.
*** - In 2005 Mike Leali & Pete McConaghie tied 4-1 in a 6 player round robin. Mike Leali's name appears on the traveling plaque as 2005 champion, so we infer he was indeed the winner, but we have no information about the final match or tie break used.
# - Decided by 1 game playoff after tournament tie.
## - 5 round Swiss, co-champions with 4-1 scores.
USCF records only go back to 1992, so previous champions are not well documented. Champions from previous eras include Art Hartwig, John Roecker, Tom Mabee, John Lutes, and Bill Wilkinson.