A native of Lloydminster, Lucella MacLean-Ross was one of the original South Bend Blue Sox of the All-American Girls Professional Baseball League, as made famous by the Tom Hanks and Gina Davis movie "A League of Their Own".
Known to her teammates, friends, and family as Lu; she had an amazing 10 year career which saw her play for the Edmonton Army and Navy Pats, the Admiral Music Maids, Chicago Chicks, Chicago Bluebirds, Parichy Bloomer Girls, and Rockola Chicks.
In recognition of her amazing career, Lu and her various teams have been inducted into the Saskatchewan Baseball Hall of Fame, the Alberta Hall of Fame, the Canadian Baseball Hall of Fame as well as the Baseball Hall of Fame and Museum in Cooperstown, NY.
Lu was a great supporter of softball. All those who met her were indelibly inspired by her achievements and touched by her passion and elegance.
So that future generations may benefit from Lu's story and example, GPLS is honoured to award the MacLean-Ross Cup to its league champions at the conclusion of each season.
| Year | Division | CHAMPION | RUNNER-UP |
| 2020 | Not Awarded | Covid 19 Pandemic | |
| 2019 | U16 | Prince Albert Aces | Sherwood Park Storm |
| 2019 | U14 | Lloydminster Liners | St. Albert Angels |
| 2019 | U12 | Lloydminster Liners | Calgary Adrenaline |
| 2018 | U16 | Prince Albert Aces | Calgary Kaizen |
| 2018 | U14 | Prince Albert Aces | Edmonton Rivercity |
| 2018 | U12 | St. Albert Angels | Calgary Kaizen |
| 2017 | U16 | Edmonton Rivercity 01 | Prince Albert Aces |
| 2017 | U14 | Prince Albert Aces | Sherwood Park Storm 03 |
| 2017 | U12 | Lloydminster Liners | Red Deer Rage |
| 2016 | U16 | Calgary Adrenaline | Lloydminster Liners |
| 2016 | U14 | Strathmore Thunder | Sherwood Park Storm |
| 2016 | U12 | Sherwood Park Storm | St. Albert Angels |
| 2015 | U18 | Lloydminster Rebels | Prince Albert Aces |
| 2015 | U16 | Prince Albert Aces | Red Deer Rage |
| 2015 | U14 | Edmonton Warriors | Red Deer Rage |
| 2015 | U12 | Lloydminster Blues | Sherwood Park Storm |
| 2014 |
| Not Awarded | Championship Rained Out |
| 2013 | U16 | Calgary Adrenaline | Lloydminster Rebels |
| 2013 | U14 | Prince Albert Aces | Red Deer Rage |
| 2013 | U12 | Edmonton Warriors | Red Deer Rage |
| 2012 | U16 | Lloydminster Rebels | Prince Albert Aces |
| 2012 | U14 | Red Deer Rage | Calgary Adrenaline |
| 2012 | U12 | Red Deer Rage | Wetaskiwin Wild |
| 2011 | Not Awarded | Championship Rained Out |