| Date | Location | Result | |
| May 31, 2018 | Grand Junction, CO | San Jacinto (TX) 8, Southern Idaho 6 | Box score |
| May 30, 2018 | Grand Junction, CO | Walters St. (TN) 12, Southern Idaho 10 | Box score |
| May 28, 2018 | Grand Junction, CO | Southern Idaho 4, Iowa Western (IA) 2 | Box score |
| May 26, 2018 | Grand Junction, CO | Southern Idaho 5, Temple (TX) 2 | Box score |
| May 19, 2018 | CSI | Southern Idaho 4, Arizona Western 3 | Box score |
| May 18, 2018 | CSI | Southern Idaho 10, Salt Lake CC 7 | Box score |
| May 17, 2018 | CSI | Southern Idaho 10, Arizona Western 2 | Box score |
| May 13, 2018 | CSI | Southern Idaho 7, Salt Lake CC 5 | Box score |
| May 11, 2018 | Twin Falls, ID | Southern Idaho 4, Southern Nevada 0 | Box score |
| May 10, 2018 | Twin Falls, ID | Southern Idaho 4, Colorado Northwester 3 | Box score |
| May 05, 2018 | Henderson, NV | Southern Nevada 9, Southern Idaho 3 | Box score |
| May 05, 2018 | Henderson, NV | Southern Nevada 6, Southern Idaho 5 | Box score |
| May 04, 2018 | Henderson, NV | Southern Idaho 3, Southern Nevada 0 | Box score |
| May 04, 2018 | Henderson, NV | Southern Idaho 2, Southern Nevada 0 | Box score |
| Apr 28, 2018 | Twin Falls, Idaho | Southern Idaho 4, USU Eastern 2 | Box score |
| Apr 28, 2018 | Twin Falls, Idaho | Southern Idaho 7, USU Eastern 5 | Box score |
| Apr 27, 2018 | Twin Falls, Idaho | Southern Idaho 8, USU Eastern 1 | Box score |
| Apr 27, 2018 | Twin Falls, Idaho | Southern Idaho 4, USU Eastern 1 | Box score |
| Apr 21, 2018 | CSI | Southern Idaho 11, Colorado Northwester 0 | Box score |
| Apr 21, 2018 | CSI | Southern Idaho 8, Colorado Northwester 4 | Box score |
| Apr 20, 2018 | CSI | Southern Idaho 7, Colorado Northwester 3 | Box score |
| Apr 20, 2018 | CSI | Southern Idaho 3, Colorado Northwester 2 | Box score |
| Apr 14, 2018 | CSI | Southern Idaho 8, Utah State Club 0 | Box score |
| Apr 14, 2018 | CSI | Southern Idaho 2, Utah State Club 0 | Box score |
| Apr 13, 2018 | CSI | Southern Idaho 10, Utah State Club 0 | Box score |
| Apr 13, 2018 | CSI | Southern Idaho 5, Utah State Club 0 | Box score |
| Apr 06, 2018 | West Jordan , UT | Salt Lake CC 11, Southern Idaho 4 | Box score |
| Apr 06, 2018 | West Jordan, UT | Salt Lake CC 6, Southern Idaho 5 | Box score |
| 4/5/2018 | West Jordan, UT | Southern Idaho 9, Salt Lake CC 2 | Box score |
| Apr 05, 2018 | West Jordan , UT | Salt Lake CC 8, Southern Idaho 3 | Box score |
| Mar 31, 2018 | CSI | Southern Idaho 8, Southern Nevada 7 | Box score |
| Mar 31, 2018 | CSI | Southern Idaho 10, Southern Nevada 3 | Box score |
| Mar 30, 2018 | CSI | Southern Idaho 7, Southern Nevada 4 | Box score |
| Mar 30, 2018 | CSI | Southern Idaho 4, Southern Nevada 3 | Box score |
| Mar 26, 2018 | Twin Falls, Idaho | Southern Idaho 7, Idaho State Club 0 | Box score |
| Mar 26, 2018 | Twin Falls, Idaho | Southern Idaho 7, Idaho State Club 0 | Box score |
| Mar 24, 2018 | Price, UT | Southern Idaho 13, USU Eastern 3 | Box score |
| Mar 24, 2018 | Price, UT | USU Eastern 2, Southern Idaho 1 | Box score |
| Mar 23, 2018 | Price, UT | Southern Idaho 14, USU Eastern 7 | Box score |
| Mar 23, 2018 | Price, UT | Southern Idaho 8, USU Eastern 2 | Box score |
| 3/17/2018 | Rangely, CO | Southern Idaho 9, Colorado Northwester 6 | Box score |
| 3/17/2018 | Rangely, CO | Southern Idaho 11, Colorado Northwester 4 | Box score |
| 3/16/2018 | Rangely, CO | Southern Idaho 12, Colorado Northwester 3 | Box score |
| 3/16/2018 | Rangely, CO | Southern Idaho 12, Colorado Northwester 1 | Box score |
| Mar 10, 2018 | Twin Falls, Idaho | Southern Idaho 5, Prairie Baseball 1 | Box score |
| Mar 10, 2018 | Twin Falls, Idaho | Southern Idaho 5, Prairie Baseball 1 | Box score |
| Mar 09, 2018 | Twin Falls, Idaho | Southern Idaho 4, Prairie Baseball 2 | Box score |
| Mar 09, 2018 | Twin Falls, Idaho | Southern Idaho 2, Prairie Baseball 1 | Box score |
| Mar 02, 2018 | St. George, Utah | Salt Lake CC 11, Southern Idaho 4 | Box score |
| Mar 02, 2018 | St. George, Utah | Southern Idaho 8, Salt Lake CC 2 | Box score |
| Mar 01, 2018 | St. George, Utah | Southern Idaho 10, Salt Lake CC 2 | Box score |
| Mar 01, 2018 | St. George, Utah | Salt Lake CC 6, Southern Idaho 3 | Box score |
| Feb 17, 2018 | St. George, Utah | Southern Idaho 8, Northeastern JC 7 | Box score |
| Feb 16, 2018 | St. George, Utah | Southern Idaho 10, Northeastern JC 6 | Box score |
| Feb 16, 2018 | St. George, Utah | Southern Idaho 5, Northeastern JC 2 | Box score |
| Feb 15, 2018 | St. George, Utah | Southern Idaho 6, Northeastern JC 3 | Box score |
| Feb 11, 2018 | Henderson, Nev. | Southern Idaho 11, Okanagan College 10 | Box score |
| Feb 10, 2018 | Henderson, Nev. | South Mountain CC 4, Southern Idaho 3 | Box score |
| Feb 9, 2018 | Henderson, Nev. | Southern Idaho 7, Yavapai College 6 | Box score |
| Feb 9, 2018 | Henderson, Nev. | Southern Idaho 6, Cochise CC 4 | Box score |
| Feb. 3, 2018 | Las Vegas, Nev. | Southern Idaho 10, Scottsdale CC 6 | Box score |
| Feb. 2, 2014 | Las Vegas, Nev. | Southern Idaho 6, Scottsdale CC 2 | Box score |
| Feb. 2, 2018 | Las Vegas, Nev. | Southern Idaho 2, Scottsdale CC 1 | Box score |
| Feb. 1, 2018 | Las Vegas, Nev. | Scottsdale CC 14, Southern Idaho 4 | Box score |