This trophy is awarded annually to the sub-Life Master team that wins Flight C of the District 18 level Grand National Teams event. (Originally it was provided to the NLM winner of the D event but was changed to C when the D event no longer was held). The event is held each spring usually in Great Falls or Calgary. Robin MacNab represented Montana for many years on the District 18 board. He was the District 18 representative to the ACBL Board of Directors. Robin also served as President of the ACBL and is credited with founding the GNT event. Robin died on March 9, 1985. The trophy is displayed at the Unit in Great Falls.
| 2026 | Baynish Bassett, Carol Izsak, Kathie Gellatly, Brenda Smither |
| 2025 | Reece Jurgens, Emilie Torwall, Felix Boucher, Bernice Ng, Dan Bell, Isaac Stone |
| 2024 | David Stephure, George Ongyerth, Keith Barry, Susan Ongyerth |
| 2023 | No Flight C Event |
| 2022 | No Flight C Event |
| 2021 | No Flight C Event |
| 2020 | No event this year due to Covid. |
| 2019 | Andrew Serafini – Michael Serafini – Jay Newington – Brent Muir, Calgary AB |
| 2018 | Nancy Larson, Draper UT; Yinghan Ding – Scott Rosenbush, Salt Lake City UT; Xiaobin Sun, Park City UT |
| 2017 | Richard Piette – Ryan Clark – Jay Newington – Brent Muir, Calgary AB |
| 2016 | Grant Cheston – James Dynes – Bette Wilson – Aileen Handyside |
| 2015 | Jana Willcoxon, Carol Lubomudrov, Mary Bujanovich, Barbara Nielsen |
| 2014 | Ann Matthews – Jana Willcoxon, Saint George UT; Clysta Kittlaus – Mary Bujanovich, St George UT; Carol Lubomudrov, Ivins UT |
| 2013 | No Flight C Event |
| 2012 | No Flight C Event |
| 2011 | 1. Roxy Sandmaier, Louis Sandmaier, Chris Murphy, Jim Murphy, Calgary AB |
| 2010 | Genie Goodman – Karen Hoover – Judy Ferguson, Great Falls MT; Marilyn Pimperton, Belt MT |
| 2009 | Marjorie Kushnir – Donna Lea Anderson – Mary Tebo – Mary Porter, Calgary AB |
| 2008 | Henry Kwok – Dorothy Kwok – John Dauphinais – Stephen Dauphinais, Edmonton AB |
| 2007 | Robert Boissoin – Mary Ross – Olga Wright – Bob Wright, Calgary AB |
| 2006 | Celeste Sinton – Fred Pfister, Helena – Nadine Kazimi – Zia Kazimi, Clancy |
| 2005 | Ross Armour, Curtis Stock, Lloyd Sullivan, Chris Williams, Edmonton AB |
| 2004 | Peter Graham-Doran Johnson -Joseph Pfeifer-Gloria McPhadden, all Saskatoon, SK. |
| 2000 | Not awarded |
| 1995 – Great Falls | Ouida Addison–Bob Addison–Mary Reis–Winnie Appleby |
| 1994–Red Deer | Bob Nabata-Bernice Jeske-Marguerite McAuley-Flora Ambrose |
| 1993–Calgary | Ian Boyd–Tony Smith–Greg Uchacz–Tom Vrla |
| 1992–Red Deer | Dan Foster–Vincent Molgot–Paul Molgot–Lisa McCarthey |
| 1991–Calgary | Dan Bertrand–Bob Clements–Diane Clements–George Redesei |
| 1990–Billings | John Carranza–Ben Forbes–Romona Doll–Lon Doll |
| 1989–Calgary | Murray Peterson–Jo Peterson–Terri Walters–Hamish Boyd |
| 1988–Red Deer | Lari Uchytil–Christine Seaville–Lynn Longmore–Don McCarthy |
| 1987–Calgary | Maxine Webb–Eloise Outhwaite–Dinesh Agrawal–Raj Agrawal |
| 1986–Missoula | Joan Akin–Mae Sentman–Ellie Berg–Sharon Demmons |
| 1985–Butte | John Clark–Laura Clark–Bea Conzelman–Jean Matteucci |
| 1984–Prince Albert | Aline Hannan–Don Hannan–Jerry Hannan–Don Shatilla–Rick Wakeman |
| 1983–Edmonton | Nelson Smith–Joan Smith–Lyle Hillman–Irv Stordahl–Diana Stordal |
| 1982–Saskatoon | Elaine Crossley–Linda Connell–Grant Mills–Ken Connell–David Crossley |
| 1981–Calgary | Elaine Sorensen–Munroe Macphee–Joe Glazer–Paul Sorenson |
| 1980–Medicine Hat | Alex MacKinnon–Bill Brown–Bob Smith–Don Lust |
| 1979–Saskatoon | Cindy Seibel–Andy Seibel–Mary McGarry–Billy Zerebeski |
| 1978–Saskatoon | Bebi Bokshowan-Don Campbell–Dim O’Donnell–Kim Carruthers |
| 1977–Salt Lake City | Lee Carrera–Laura Steele–Bill Roach–Bill Aeschbacher |
| 1976–Bozeman | Sandra Shipley–Rick Kelly–Joe Liuzza–John Crawford–Heidi Hickes |
| 1975–Saskatoon | Michael Wiss–Jim Norman–Bill Hunt–Dave Hallott |
| 1974–Billings | Katie Romine–Frances Redman–Mabel Birrer–Mrs J. Long Jr. |