| | | |
| September 28, 2018 | L | Central Illinois Flying Aces 5 at Waterloo Black Hawks 4 (Cranberry Township, PA) | Final (OT) |
| September 29, 2018 | W | Waterloo Black Hawks 3 at Omaha Lancers 1 (Cranberry Township, PA) | Final |
| October 5, 2018 | L | Waterloo Black Hawks 2 at Des Moines Buccaneers 3 | Final (SO) |
| October 6, 2018 | W | Waterloo Black Hawks 5 at Central Illinois Flying Aces 1 | Final |
| October 13, 2018 | L | Green Bay Gamblers 5 at Waterloo Black Hawks 4 | Final (OT) |
| October 18, 2018 | W | Youngstown Phantoms 3 at Waterloo Black Hawks 5 | Final |
| October 19, 2018 | L | Waterloo Black Hawks 5 at Sioux Falls Stampede 6 | Final (OT) |
| October 20, 2018 | W | Waterloo Black Hawks 4 at Sioux City Musketeers 2 | Final |
| October 26, 2018 | W | Fargo Force 3 at Waterloo Black Hawks 4 | Final (SO) |
| October 27, 2018 | L | Fargo Force 4 at Waterloo Black Hawks 3 | Final |
| October 30, 2018 | W | Waterloo Black Hawks 6 at Sioux City Musketeers 5 | Final (OT) |
| November 2, 2018 | W | Dubuque Fighting Saints 1 at Waterloo Black Hawks 6 | Final |
| November 3, 2018 | L | Waterloo Black Hawks 3 at Dubuque Fighting Saints 4 | Final |
| November 9, 2018 | W | Waterloo Black Hawks 4 at Chicago Steel 2 | Final |
| November 10, 2018 | W | Waterloo Black Hawks 3 at Green Bay Gamblers 2 | Final (OT) |
| November 16, 2018 | L | Tri-City Storm 2 at Waterloo Black Hawks 1 | Final |
| November 17, 2018 | W | Lincoln Stars 3 at Waterloo Black Hawks 6 | Final |
| November 21, 2018 | L | Waterloo Black Hawks 2 at Sioux City Musketeers 4 | Final |
| November 22, 2018 | W | Cedar Rapids RoughRiders 1 at Waterloo Black Hawks 4 | Final |
| November 24, 2018 | L | Waterloo Black Hawks 2 at Cedar Rapids RoughRiders 6 | Final |
| November 30, 2018 | W | Waterloo Black Hawks 5 at U.S. National Team 3 | Final |
| December 1, 2018 | L | Waterloo Black Hawks 1 at U.S. National Team 3 | Final |
| December 7, 2018 | W | Madison Capitols 2 at Waterloo Black Hawks 6 | Final |
| December 8, 2018 | W | Cedar Rapids RoughRiders 2 at Waterloo Black Hawks 5 | Final |
| December 14, 2018 | W | Waterloo Black Hawks 5 at Lincoln Stars 4 | Final |
| December 15, 2018 | W | Waterloo Black Hawks 5 at Madison Capitols 3 | Final |
| December 27, 2018 | L | Waterloo Black Hawks 2 at Sioux Falls Stampede 4 | Final |
| December 29, 2018 | W | Youngstown Phantoms 3 at Waterloo Black Hawks 4 | Final |
| December 31, 2018 | W | Madison Capitols 0 at Waterloo Black Hawks 4 | Final |
| January 4, 2019 | W | Waterloo Black Hawks 6 at Sioux Falls Stampede 4 | Final |
| January 5, 2019 | L | Lincoln Stars 7 at Waterloo Black Hawks 4 | Final |
| January 11, 2019 | L | Waterloo Black Hawks 0 at Tri-City Storm 3 | Final |
| January 12, 2019 | L | Waterloo Black Hawks 2 at Tri-City Storm 5 | Final |
| January 15, 2019 | W | Sioux City Musketeers 0 at Waterloo Black Hawks 4 | Final |
| January 18, 2019 | W | Waterloo Black Hawks 4 at Dubuque Fighting Saints 2 | Final |
| January 19, 2019 | W | Dubuque Fighting Saints 0 at Waterloo Black Hawks 5 | Final |
| January 24, 2019 | W | Omaha Lancers 1 at Waterloo Black Hawks 5 | Final |
| January 26, 2019 | W | Cedar Rapids RoughRiders 1 at Waterloo Black Hawks 3 | Final |
| February 1, 2019 | W | Fargo Force 1 at Waterloo Black Hawks 2 | Final (OT) |
| February 2, 2019 | W | Muskegon Lumberjacks 1 at Waterloo Black Hawks 3 | Final |
| February 8, 2019 | W | Waterloo Black Hawks 4 at Des Moines Buccaneers 2 | Final |
| February 9, 2019 | L | Sioux Falls Stampede 5 at Waterloo Black Hawks 2 | Final |
| February 15, 2019 | W | Waterloo Black Hawks 3 at Des Moines Buccaneers 0 | Final |
| February 16, 2019 | L | Waterloo Black Hawks 1 at Cedar Rapids RoughRiders 2 | Final |
| February 17, 2019 | L | Tri-City Storm 6 at Waterloo Black Hawks 3 | Final |
| February 22, 2019 | W | Waterloo Black Hawks 8 at Lincoln Stars 0 | Final |
| February 23, 2019 | W | Sioux City Musketeers 3 at Waterloo Black Hawks 7 | Final |
| March 1, 2019 | W | Waterloo Black Hawks 2 at Fargo Force 0 | Final |
| March 2, 2019 | L | Waterloo Black Hawks 1 at Fargo Force 2 | Final |
| March 8, 2019 | L | Des Moines Buccaneers 5 at Waterloo Black Hawks 4 | Final (OT) |
| March 9, 2019 | W | Sioux Falls Stampede 3 at Waterloo Black Hawks 4 | Final (OT) |
| March 16, 2019 | W | Waterloo Black Hawks 5 at Fargo Force 2 | Final |
| March 22, 2019 | W | Waterloo Black Hawks 3 at Cedar Rapids RoughRiders 2 | Final (OT) |
| March 23, 2019 | L | Cedar Rapids RoughRiders 3 at Waterloo Black Hawks 2 | Final (OT) |
| March 26, 2019 | L | Sioux Falls Stampede 5 at Waterloo Black Hawks 4 | Final (SO) |
| March 29, 2019 | W | Waterloo Black Hawks 5 at Muskegon Lumberjacks 3 | Final |
| March 30, 2019 | W | Waterloo Black Hawks 7 at Chicago Steel 5 | Final |
| April 2, 2019 | L | Sioux City Musketeers 6 at Waterloo Black Hawks 3 | Final |
| April 5, 2019 | L | Chicago Steel 3 at Waterloo Black Hawks 1 | Final |
| April 6, 2019 | W | Omaha Lancers 1 at Waterloo Black Hawks 4 | Final |
| April 12, 2019 | W | Dubuque Fighting Saints 1 at Waterloo Black Hawks 2 | Final |
| April 13, 2019 | W | Waterloo Black Hawks 6 at Dubuque Fighting Saints 2 | Final |
| April 19, 2019 | L | Sioux Falls Stampede 3 at Waterloo Black Hawks 2 (Playoff Gm. 1) | Final (OT) |
| April 20, 2019 | W | Sioux Falls Stampede 0 at Waterloo Black Hawks 6 (Playoff Gm. 2) | Final |
| April 23, 2019 | L | Waterloo Black Hawks 2 at Sioux Falls Stampede 6 (Playoff Gm. 3) | Final |
| April 24, 2019 | L | Waterloo Black Hawks 1 at Sioux Falls Stampede 2 (Playoff Gm. 4) | Final (OT) |
Waterloo Black Hawks Schedule
