| Date | Location | Result | |
| May 16, 2021 | DeKalb,Ill. | Miami 12, Northern Illinois 0 | Box score |
| May 15, 2021 | DeKalb, Ill. | Miami 12, Northern Illinois 10 | Box score |
| May 15, 2021 | Dekalb, Ill. | Miami 9, Northern Illinois 0 | Box score |
| May 14, 2021 | DeKalb, Ill. | Miami 7, Northern Illinois 6 | Box score |
| May 12, 2021 | DeKalb, Ill. | Ball State 13, Northern Illinois 1 | Box score |
| May 12, 2021 | Dekalb, Ill. | Ball State 13, Northern Illinois 4 | Box score |
| May 8, 2021 | DeKalb, Ill. | Bowling Green 6, Northern Illinois 2 | Box score |
| May 8, 2021 | DeKalb, Ill. | Northern Illinois 9, Bowling Green 5 | Box score |
| May 7, 2021 | DeKalb, Ill. | Bowling Green 15, Northern Illinois 4 | Box score |
| May 7, 2021 | DeKalb, Ill. | Bowling Green 1, Northern Illinois 0 | Box score |
| May 04, 2021 | Muncie, Ind. | Ball State 5, Northern Illinois 4 | Box score |
| May 04, 2021 | Muncie, Ind. | Northern Illinois 7, Ball State 2 | Box score |
| May 02, 2021 | BUFFALO, NY | Northern Illinois 7, Buffalo 5 | Box score |
| May 01, 2021 | BUFFALO, NY | Northern Illinois 11, Buffalo 4 | Box score |
| May 01, 2021 | BUFFALO, NY | Buffalo 5, Northern Illinois 0 | Box score |
| Apr 30, 2021 | BUFFALO, NY | Buffalo 5, Northern Illinois 3 | Box score |
| Apr 25, 2021 | DeKalb, Ill. | Northern Illinois 8, Akron 4 | Box score |
| Apr 24, 2021 | DeKalb, Ill. | Northern Illinois 7, Akron 0 | Box score |
| Apr 24, 2021 | DeKalb, Ill. | Northern Illinois 6, Akron 3 | Box score |
| Apr 23, 2021 | DeKalb, Ill. | Akron 4, Northern Illinois 3 | Box score |
| Apr 18, 2021 | Mount Pleasant, Mich | Central Michigan 15, Northern Illinois 7 | Box score |
| Apr 17, 2021 | Mount Pleasant, Mich | Central Michigan 10, Northern Illinois 9 | Box score |
| Apr 17, 2021 | Mount Pleasant, Mich | Central Michigan 5, Northern Illinois 2 | Box score |
| Apr 16, 2021 | Mount Pleasant, Mich | Northern Illinois 11, Central Michigan 0 | Box score |
| Apr 14, 2021 | DeKalb, Ill. | Northern Illinois 9, Valparaiso 3 | Box score |
| Apr 11, 2021 | DeKalb, Ill. | Western Michigan 10, Northern Illinois 2 | Box score |
| Apr 11, 2021 | DeKalb, Ill. | Northern Illinois 8, Western Michigan 1 | Box score |
| Apr 09, 2021 | DeKalb, Ill. | Northern Illinois 2, Western Michigan 1 | Box score |
| Apr 09, 2021 | DeKalb, Ill. | Western Michigan 8, Northern Illinois 5 | Box score |
| Apr 07, 2021 | Chicago, Ill. | DePaul 6, Northern Illinois 5 | Box score |
| Apr 04, 2021 | Toledo, Ohio | Toledo 1, Northern Illinois 0 | Box score |
| Apr 03, 2021 | Toledo, Ohio | Toledo 11, Northern Illinois 3 | Box score |
| Apr 03, 2021 | Toledo, Ohio | Toledo 13, Northern Illinois 12 | Box score |
| Apr 02, 2021 | Toledo, Ohio | Northern Illinois 4, Toledo 3 | Box score |
| Mar 28, 2021 | DeKalb, Ill. | Northern Illinois 7, Kent State 5 | Box score |
| Mar 27, 2021 | DeKalb, Ill. | Kent State 10, Northern Illinois 8 | Box score |
| Mar 26, 2021 | DeKalb, Ill. | Kent State 12, Northern Illinois 5 | Box score |
| Mar 26, 2021 | DeKalb, Ill. | Kent State 11, Northern Illinois 0 | Box score |
| Mar 24, 2021 | Normal, Ill. | Illinois State 6, Northern Illinois 0 | Box score |
| 3/21/2021 | Athens, Ohio | Northern Illinois 12, Ohio 2 | Box score |
| 3/21/2021 | Athens, Ohio | Ohio 4, Northern Illinois 3 | Box score |
| 3/20/2021 | Athens, Ohio | Ohio 7, Northern Illinois 2 | Box score |
| 3/20/2021 | Athens, Ohio | Ohio 6, Northern Illinois 5 | Box score |
| Mar 13, 2021 | phoenix, ariz | Baylor 8, Northern Illinois 1 | Box score |
| Mar 12, 2021 | phoenix, ariz | Northern Illinois 5, Grand Canyon 2 | Box score |
| Mar 12, 2021 | Phoenix,Ariz | Baylor 3, Northern Illinois 2 | Box score |
| Mar 10, 2021 | Phoenix, Ariz. | Northern Illinois 6, Grand Canyon 3 | Box score |
| Mar 09, 2021 | Tempe, Ariz. | Arizona State 10, Northern Illinois 2 | Box score |
| Mar 07, 2021 | Phoenix,Ariz | Grand Canyon 7, Northern Illinois 6 | Box score |
| Mar 06, 2021 | phoenix,ariz | Grand Canyon 10, Northern Illinois 5 | Box score |
| Mar 6, 2021 | Phoenix, Ariz | Grand Canyon 2, Northern Illinois 1 | Box score |
| Feb 21, 2021 | Fort Myers, Fla. | Northern Illinois 3, FIU 0 | Box score |
| Feb 20, 2021 | Fort Myers, Fla. | FGCU 5, Northern Illinois 3 | Box score |
| Feb 20, 2021 | Fort Myers, Fla. | Northern Illinois 1, FIU 0 | Box score |
| Feb 19, 2021 | Fort Myers, Fla. | Northern Illinois 4, FGCU 1 | Box score |
| Feb 19, 2021 | Fort Myers, Fla. | UConn 7, Northern Illinois 1 | Box score |