| Year | Div | Quartet Name / Chapter(s) | Tenor | Lead | Baritone | Bass |
|---|---|---|---|---|---|---|
| 2024 | NE | Claim Jumpers Placerville, Sacramento Delta |
Scott West | Kent Miller | Howard Wolf | David Ely |
| 2023 | AZ | Mavrix Salt River Valley |
Doug Wherwein | Marco Teti | Jim Ziegler | Lewis Smith |
| 2023 | NW | Fab Four-te California Delta, Walnut Creek, Frank Thorne |
Judy Grove | Todd Plantenga | Jeffery Asbury | Tim Ellis |
| 2023 | SE | Show Biz Fullerton, Greater Los Angeles, South Bay, Frank Thorne |
Craig Ewing | Tom Moore | Gary Bolles | Jim Kline |
| 2023 | SW | GANG BUSTERS Greater Los Angeles, Frank Thorne |
Jim Thompson | Brad Kelso | Dan Jordan | Geoff WIlson |
| 2019 | AZ | Hometown Heroes Greater Phoenix, Salt River Valley, Santa Fe Springs, Sun Cities |
Hambone Dergan | Rob Baltensberger | Dan Ryan | Rich Kates |
| 2019 | NE | Rapport Fresno, Frank Thorne |
Jim Irwin | Mac McIntosh | Ron Whisenant | Patrick Gerrits |
| 2019 | NW | The Good Guys Bay Area, Frank Thorne |
Paul Engel | James Sousae | John Weingart | Big Norcross |
| 2019 | SE | Biscuits and Gravy Inland Empire |
Geoff Mordue | David Strough Jr. | P. Lance Alloway | Allen Smith |
| 2019 | SW | Velvet Frogs Fullerton, Santa Fe Springs, Santa Monica |
Craig Ewing | David Livingston | C J Sams, Jr. | Bill Wilson |
| 2018 | AZ | Antique Parts Prescott |
Richard Lugwigson | Edward Massa | Sam Stimple | Thomas Keenan |
| 2018 | NE | R.I.C.K.S. California Delta, Central California |
David R Wallace | Steve Leipelt | Bruce Sellnow | Richard Lund |
| 2018 | SE | Good Times! las Vegas |
Mike Conner | Dave Pruszka | Wally Smulson | Greg Dreyer |
| 2017 | AZ | Renaissance Salt River Valley, Sante Fe Springs, Frank Thorne |
John Fynmore | Fraser Brown | Gary Steinkamp | Richard Wells |
| 2017 | NE | What Four Barbary Coast, Bay Area, California Delta, Nevada-Placer, Placerville, Reno |
Tim Martin | Corley Phillips | Winston Char | Richard Lund |
| 2017 | NW | The Good Guys Bay Area, Frank Thorne |
Paul Engel | Steve Bishop | John Weingart | Donald Norcross |
| 2017 | SE | Time Wise Las Vegas |
Gordon Lankenau | Jeff Swart | Warren Hettinga | Chuck Wines |
| 2017 | SW | Apex Santa Fe Springs, Santa Monica, Orange Quartet, San Fernando Valley |
Michael Van Schoonhoven | David Livingston | Douglas Ward | Charles Carothers |
| 2016 | AZ | Antique Parts Prescott |
Richard Lugwigson | Edward Massa | Sam Stimple | Thomas Keenan |
| 2016 | NE | The Artful Codgers California Delta, Nevada-Placer, Sacramento, Frank Thorne |
Barry Givens | Corley Phillips | Daniel Wilson | Blair Reynolds |
| 2016 | SE | Fremont Street Express Las Vegas |
Kenny Rios, Sr. | Jeff Swart | Warren Hettinga | Chuck Wines |
| 2015 | AZ | Carefree Highway Greater Phoenix |
Thomas Lyon | Daniel Ryan | Tom Schleier | John Bloomquist |
| 2015 | NE | The Artful Codgers California Delta, Nevada-Placer, Sacramento, Frank Thorne |
Barry Givens | Corley Phillips | Daniel Wilson | Blair Reynolds |
| 2015 | SW | Blood, Sweat, and Years Bay Area, Santa Fe Springs, Frank Thorne |
Paul Engel | Les Weiser | Bob Cathaway | Bill Myers |
| 2014 | AZ | High Priority Greater Phoenix |
Ray Estes | Byron Bennett | Mark House | Dan Davenport |
| 2014 | NE | Classic Edition California Delta, Marin |
Jim DeChaine | Richard Thomas | Paul Goldsmith | Richard Kaiser |
| 2014 | SE | Four Fifteen Brea, California Delta, Frank Thorne |
Bryan Forbes | Larry Gassman | John Gassman | Frank Gilb |
| 2014 | SW | Blood, Sweat, and Years Bay Area, Santa Fe Springs, Frank Thorne |
Paul Engel | Lester Weiser | Bob Cathaway | Bill Myers |
| 2013 | AZ | Joint Venture Tucson |
Roy Ireland | Les Walter | Wayne Lohmeier | Ricahrd Kates |
| 2013 | NE | Classic Edition Marin, California Delta |
James DeChaine | Richard Thomas | Paul Goldsmith | Richard Kaiser |
| 2013 | NW | Serendipity Marin, Bay Area, San Francisco, Santa Fe Springs, Frank Thorne |
Norman Reynolds | Fred Merrick | Jon Goerke | Dale Steinmann |
| 2013 | SE | Preferred Blend Fullerton, La Jolla |
David Yarnell | Steve Hansen | Peter Hensley | Alfred Vera |
| 2013 | SW | Centerpiece Santa Barbara |
Stephen Watson | Howard Lange | Eric Fenrich | Michael Frazer |
| 2012 | AZ | Joint Venture Tucson |
Roy Ireland | Les Walter | Wayne Lohmeier | Ricahrd Kates |
| 2012 | NE | DOUBLETAKE Santa Fe Springs, Bay Area, Bellevue, California Delta |
Leslie Dergan | Gary Bolles | Charles Landback | Bruce Morgan |
| 2012 | NW | Gray Pride San Jose |
Jack Steck | Steve Bishop | Larry Weiss | David Haedtler |
| 2012 | SW | Velvet Frogs Sante Fe Springs |
Leslie Durgan | David Livingston | Cecil Sams | Bill Wilson |
| 2011 | AZ | Joint Venture Tucson |
Roy Ireland | Les Walter | Wayne Lohmeier | Ricahrd Kates |
| 2011 | NE | Great Western Timbre Company California Delta, SUN, SWD |
Roger Smeds | Dwight Holmquist | Jack Liddell | Ron Black |
| 2011 | NW | Never Too Old 4 Palo Alto-Mountain View, San Francisco Bay Cities |
Bruce Bunting | Charles Mollett | David Plum | Bill Gates |
| 2011 | SE | Silver Knights Las Vegas Metro, Palo Alto-Mountain View |
John Mininger | Warren Hettinga | Chuck Wines | James Sherman |
| 2011 | SW | From The Top San Fernando Vallye, Crescenta Valley, South Bay, Santa Clarita |
Michael Van Schoonhoven | David Livingston | Charles Brooks | Bill Horst |
| 2010 | AZ | New Tricks Greater Phoenix, Mesa |
Steven Schneck | Robert Sampson | Jim Brown | Jim Hanson |
| 2010 | NE | Silver & Gold Fresno |
Jim Warner | Mac McIntosh | Doug Yarrow | Terry Starr |
| 2010 | NW | Serendipity Marin, Bay Area, San Francisco, Santa Fe Springs, Frank Thorne |
Norman Reynolds | Fred Merrick | Jon Goerke | Dale Steinmann |
| 2010 | SE | Silver Knights Las Vegas Metro, Frank thorne, Palo Alto-Mountain View |
John Mininger | Warren Hettinga | Chuck Wines | James Sherman |
| 2010 | SW | From The Top Crescenta Valley, San Fernando Valley, Santa Clarita, South Bay |
Michael Van Schoonhoven | David Livingston | Charles Brooks | Bill Horst |
| 2009 | AZ | Joint Venture Tucson |
Roy Ireland | Les Walter | Wayne Lohmeier | Richard Kates |
| 2009 | NE | Silver & Gold | James Warner | Mac McIntosh | Doug Yarrow | Terry Starr |
| 2009 | NW | Motley Q Bay Area |
Paul Engel | Steve Bishop | Jack Steck | David Haedtler |
| 2009 | SE | California Crossroads Brea, Fullerton, Santa Fe Springs, La Jolla |
David Yarnell | Lester Weiser | Peter Hensley | Larry Thorpe |
| 2009 | SW | Top-Notch Rincon Beach, Santa Fe Springs, Santa Monica |
Arthur Taylor | Lawrence Goodfried | Robert Heron | Daniel Place |
| 2008 | AZ | Audacity Greater Phoenix |
John Fynmore | Byron Bennett | Fraser Brown | Greg Dodge |
| 2008 | NE | Silver & Gold Fresno, Oakhurst |
James Warner | Mac McIntosh | Douglas Yarrow | Terry Starr |
| 2008 | NW | Motley Q Bay Area |
Paul Engel | Stephen Bishop | Jack Steck | David Haedtler |
| 2008 | SE | California Crossroads Brea, Fullerton, Santa 'fe Springs, La Jolla |
David Yarnell | Lester Weiser | Peter Hensley | Larry Thorpe |
| 2008 | SW | Four Of Hearts San Fernando Valley, Crescenta Valley, Rincon Beach |
Michael Van Schoonhoven | David Livingston | Charles Brooks | James Serdahely |
| 2007 | AZ | Dry Heat Greater Phoenix, Central Arizona, Paradise Valley |
Gen Gregg Jr | Robert Sampson | Stuart Wilcox | Collin McKinney |
| 2007 | NE | The Fourtune Hunters Central Valley |
Howard Barber | Terrell Chambers | Gregory Kramp | Roy Anderson |
| 2007 | NW | It's About Time Bay Area |
Dave Theobald | Chuck Leavitt | Jack Steck | John Vaughn |
| 2007 | SE | California Crossroads La Jolla, Santa Fe Springs |
David Yarnell | Lester Weiser | Peter Hensley | Larry Thorpe |
| 2007 | SW | Four of Hearts Crescenta Valley, South Bay, San Fernando Valley |
Michael Van Schoonhoven | David Livingston | Charles Brooks | James Serdahely |
| 2006 | AZ | Music Box Greater Phoenix |
Daniel Wilson | Jack Nelis | Bob Sazbo | John Bloomquist |
| 2006 | NE | Twilight Time Central California |
Howard Barber | Robert Clark | Gregory Kramp | Roy Anderson |
| 2006 | NW | It's About Time Bay Area |
Ed James | Chuck Leavitt | Jack Streck | John Vaughn |
| 2006 | SE | XL Fullerton, Santa Fe Springs, South Bay, Whittier |
David Yarnell | Robert Girffiths | Lefter Parasson | Stan Sharpe |
| 2006 | SW | Top-Notch Santa Fe Springs, Rincon Beach, Santa Monica |
Art Taylor | Larry Goodfried | Bob Heron | Dan Place |
| 2005 | AZ | Dry Heat Paradise Valley, Greater Phoenix, Az Quartet |
Ben Gregg | Bob Sampson | Stu Wilcox | Collin McKinney |
| 2005 | NE | Potlock Stockton, Frank Thorne, Sacramento, San Jose |
Bill Cale | John Gilliland | Bill Borah | Jim Sherman |
| 2005 | NW | Vintage Gold Bay Area Metro, Fresno, San Jose |
Ron Bass | Gary Bolles | Pat Henley | Jim Sherman |
| 2005 | SE | Early Vintage Orange Quartet, Santa Fe Springs, Rincon Beach, Bakersfield |
Stan Haymaker | Don Kileen | Bob Cathaway | Mike Weinberg |
| 2005 | SW | Sands of Time Frank Thorne, San Fernando Valley, South Bay, Crescenta Valley |
Michael Hemphill | David Livingston | Charles Brooks | Bob Platzer |
| 2004 | AZ | Dry Heat Greater Phoenix, Paradise Valley, Central Arizone Quartet |
Ben Gregg Jr | Bob Sampson | Stu Willcox | Collin McKinney |
| 2004 | NE | Older Than Dirt Placerville |
Neal Sisson | Ray Rhymer | Russ Toliver | Bernard Carlson |
| 2004 | NW | Potluck Stockton, Frank Thorne, Sacramento, San Jose |
Bill Cale | John Gilliland | Bill Borah | Jim Sherman |
| 2004 | SE | Added Attraction LaJolla, San Diego |
Donald Saba | Jim Langford | ? Which one? | Jim Watt |
| 2003 | AZ | Dry Heat Paradise Valley, Greater Phoenix, Az Quartet |
Ben Gregg | Bob Sampson | Stu Wilcox | Collin McKinney |
| 2003 | NE | Potluck San Jose, Sacramento, Stockton, Frank Thorne |
Bill Cale | John Gilliland | Bill Borah | Jim Sherman |
| 2003 | NW | The Good Guys | Paul Engel | John Weingart | Jack Steck | Ronald Brown |
| 2003 | SE | Top-Notch | Arthur Taylor | Lawrence Goodfried | Lester Weiser | Daniel Place |
| 2003 | SW | Curtain Call Rincon Beach |
Max Frickey | Donald Kileen | Bob Cathaway | James Serdahely |
| 2002 | AZ | Dry Heat Paradise Valley, Phoenix Saguaro, Az Quartet |
Ben Gregg | Bob Sampson | Stu Wilcox | Collin McKinney |
| 2002 | NE | 4-Score | ||||
| 2002 | NW | Adagio | ||||
| 2002 | SE | A Touch Of Class Palomar-Pacific |
David Yarnell | Bob Debol | Peter Lensley | Dean Kirkland |
| 2001 | AZ | Infinity | ||||
| 2001 | NE | Sierra Chord Express | ||||
| 2001 | NW | Potluck BAM, San Jose, Frank Thorne |
Bill Cale | John Gilliland | Bill Borah | Jim Sherman |
| 2001 | SE | A Touch Of Class Palomar-Pacific |
David Yarnell | Bob Debol | Peter Lensley | Dean Kirkland |
| 2001 | SW | Pacific Express San Luis Obispo |
Max Frickey | Babe Silva | Paul Silva | Kent Brahams |
| 2000 | AZ | Infinity | ||||
| 2000 | SE | A Touch Of Class Palomar-Pacific |
David Yarnell | Bob Debol | Peter Lensley | Dean Kirkland |
| 2000 | SW | Pacesetters | ||||
| 1999 | AZ | WWW.HMN | ||||
| 1999 | NW | Sound Investors | ||||
| 1999 | SE | A Touch of Class | ||||
| 1999 | SW | Pacific Express | ||||
| 1998 | AZ | Encore Performance | ||||
| 1998 | NE | California Crossroads | ||||
| 1998 | NW | Time Be Four | ||||
| 1998 | SW | Sixty-Something |