This list is very much subject to change, but it also serves as a really good draft:

Early January | Training Camp | Arizona
February 22 | American Birkebeiner | Wisconsin
February 28-March 7 | Training Camp | Mallorca
March 9 | Valley of Tears Gravel | Texas
March 16 | MidSouth | Oklahoma
April 13 | The Growler | California
April 18-21 | Sea Otter Classic | California
April 22-26 | inGamba Donkey Week N2 | Portugal
May 4 | The Traka | Spain
May 18 | Gravel Locos | Texas
June 1 | Unbound Gravel | Kansas
June 15 | Bon Jon Pass Out | Washington
July 20 | Summer Solstice Event? | Vermont
August 18 | SBTGRVL | Colorado
August 24 | Vermont Overland | Vermont
September 8 | USA Cycling Gravel Nationals | Nebraska
September 9-14 | inGamba | Italy
October 12 | King Challenge | New Hampshire