AIC Placement Jumps (1939-)

First Time Winner: Bartlesville Barflies (1939), Chord Busters (1941), Elastic Four (1942), Schmitt Brothers (1951), Four Teens (1952), Auto Towners (1966), Dealer's Choice (1973), Acoustix (1990)

2nd Place to 1st: Misfits (1945), Mid-States Four (1949), Vikings (1953), Four Hearsemen (1955), Confederates (1956), Four Pitchikers (1959), Evans Quartet (1960), Town and Country Four (1963), Four Renegades (1965), Western Continentals (1968), Innsiders (1976), Grandma's Boys (1979), Boston Common (1980), Chicago News (1981), Classic Collection (1982), Interstate Rivals (1987), Second Edition (1989), Keepsake (1992), The Gas House Gang (1993), Joker's Wild (1994), Yesteryear (1997), Platinum (2000), Michigan Jake (2001), Gotcha! (2004), Max Q (2007), OC Times (2008), Crossroads (2009), Old School (2011), Musical Island Boys (2014), Forefront (2016), Signature (2019)

3rd Place to 1st: Doctors of Harmony (1947), Lads of Enchantment (1957), Gaynotes (1958), Sidewinders (1964), Golden Staters (1972), Regents (1974), Side Street Ramblers (1983), Chiefs of Staff (1988), Nightlife (1996), Four Voices (2002), Power Play (2003), Storm Front (2010), Ringmasters (2012*), Main Street (2017), After Hours (2018)

4th Place to 1st: Flat Foot Four (1940), Oriole Four (1970), Gentlemen's Agreement (1971), The Ritz (1991), Marquis (1995), FRED (1999), Masterpiece (2013)

5th Place to 1st: Harmony Halls (1944), Rural Route 4 (1986)

6th Place to 1st: Four Harmonizers (1943), Pittsburghers (1948), Buffalo Bills (1950), Gala Lads (1962), Bluegrass Student Union (1978), Rapscallions (1984), Vocal Spectrum (2006)

7th Place to 1st: Most Happy Fellows (1977),  The New Tradition (1985), Realtime (2005)

8th Place to 1st: Instant Classic (2015)

9th Place to 1st: Happiness Emporium (1975), Revival (1998)

10th Place to 1st: Garden State Quartet (1946)

30th Place to 1st: Orphans (1954)

1939: Bartlesville Barflies (0**)
1940: Flat Foot Four (3)
1941: Chord Busters (0)
1942: Elastic Four (0)
1943: Four Harmonizers (5)
1944: Harmony Halls (4)
1945: Misfits (1)
1946: Garden State Quartet (9)
1947: Doctors of Harmony (2)
1948: Pittsburghers (5)
1949: Mid-States Four (1)
1950: Buffalo Bills (5)
1951: Schmitt Brothers (0)
1952: Four Teens (0)
1953: Vikings (1)
1954: Orphans (29*)
1955: Four Hearsemen (1)
1956: Confederates (1)
1957: Lads of Enchantment (2)
1958: Gaynotes (2)
1959: Four Pitchikers (1)
1960: Evans Quartet (1)
1961: Suntones (7)
1962: Gala Lads (5)
1963: Town and Country Four (1)
1964: Sidewinders (2)
1965: Four Renegades (1)
1966: Auto Towners (0)
1967: Four Statesmen (2)
1968: Western Contintentals (1)
1969: Mark IV (1)
1970: Oriole Four (3)
1971: Gentlemen's Agreement (3)
1972: Golden Staters (2)
1973: Dealer's Choice (0)
1974: Regents (2)
1975: Happiness Emporium (8)
1976: Innsiders (1)
1977: Most Happy Fellows (6)
1978: Bluegrass Student Union (5)
1979: Grandma's Boys (1)
1980: Boston Common (1)
1981: Chicago News (1)
1982: Classic Collection (1)
1983: Side Street Ramblers (2)
1984: Rapscallions (5)
1985: The New Tradition (6)
1986: Rural Route 4 (4)
1987: Interstate Rivals (1)
1988: Chiefs of Staff (2)
1989: Second Edition (1)
1990: Acoustix (0)
1991: The Ritz (3)
1992: Keepsake (1)
1993: The Gas House Gang (1)
1994: Joker's Wild (1)
1995: Marquis (3)
1996: Nightlife (2)
1997: Yesteryear (1)
1998: Revival (8)
1999: FRED (3)
2000: Platinum (1)
2001: Michigan Jake (1)
2002: Four Voices (2)
2003: Power Play (2)
2004: Gotcha! (1)
2005: Realtime (6)
2006: Vocal Spectrum (5)
2007: Max Q (1)
2008: OC Times (1)
2009: Crossroads (1)
2010: Storm Front (2)
2011: Old School (1)
2012: Ringmasters (2*)
2013: Masterpiece (3)
2014: Musical Island Boys (1)
2015: Instant Classic (7)
2016: Forefront (1)
2017: Main Street (2)
2018: After Hours (2)
2019: Signature (1)

* = Took a year or longer break inbetween their 2nd to last year and their winning year.
** = Quartet was allowed to compete again after winning.