Westmont made 20 trips to the NAIA National Tournament. The Warriors captured the 1972 National Championship and advanced to the NAIA Semifinals in 1989. In 2023, Westmont won the NCCAA National Championship. The Warriors qualified for the NCAA DII Tournament in 2024 in their first season of eligibility.
| 1968 - NAIA National Championship |
| Eastern Connecticut |
L 1-4 |
| St. Andrews (N.C.) |
W 4-0 |
| Earlham (Ind.) |
L 2-4 |
| 1969 - NAIA National Championship |
| Drew (N.J.) |
L 1-2 |
| Campbell (N.C.) |
L 1-2 |
| Eastern Connecticut |
L 0-4 |
| 1970 - NAIA National Championship |
| Quincy (Ill.) |
L 0-4 |
| Earlham (Ind.) |
W 3-0 |
| Ottawa (Kan.) |
L 0-1 |
| 1971 - NAIA National Championship |
| Erskine (SC) |
W 3-2 |
| Quincy (Ill.) |
L 0-1 |
| Ottawa (Kan.) |
L 0-1 |
| 1972 - NAIA National Championship |
| Fredonia State (N.Y.) |
W 3-0 |
| Quincy (Ill.) |
W 2-0 |
| Davis Elkins (W.Va.) |
W 2-1 OT |
| NAIA National Champion |
| 1974 - NAIA National Championship |
| Davis Elkins (W.Va.) |
L 1-2 |
| Keene State (N.J.) |
L 0-1 |
| George Mason (Va.) |
W 3-2 |
| 1984 - NAIA National Championship |
| Park (Mo.) |
T 3-3 |
| Warner Pacific (Ore.) |
L 0-6 |
| 1986 - NAIA National Championship |
| Sangamon State (Ill.) |
W 2-0 |
| Regis (Colo.) |
L 1-4 |
| 1988 - NAIA National Championship |
| Midwestern State (Texas) |
L 0-1 |
| West Virginia Wesleyan |
L 0-1 |
| 1989 - NAIA National Championship |
| Belmont Abbey (N.C.) |
W 1-0 |
| Wilmington (Ohio) |
W 2-1 |
| Boca Raton (Fla.) |
L 0-1 |
| NAIA Semifinalist |
|
|
| 1993 - NAIA National Championship |
| Belhaven (Miss.) |
L 0-2 |
| Incarnate Word (Texas) |
T 1-1 |
| 1994 - NAIA National Championship |
| Mobile (Ala.) |
L 1-2 |
| Midwestern State (Texas) |
W 4-1 |
| 1995 - NAIA National Championship |
| William Carey (Miss.) |
W 4-1 |
| Lindsey Wilson (Ky.) |
L 2-6 |
| 1997 - NAIA National Championship |
| Rockhurst (Mo.) |
T 2-2 |
| Auburn-Montgomery (Ala.) |
T 1-1 |
| 1998 - NAIA National Championship |
| William Carey (Miss.) |
L 0-1 |
| National American (S.D.) |
W 5-1 |
| 2000 - NAIA National Championship |
| Roberts Wesleyan (N.Y.) |
W 2-1 |
| Mobile (Ala.) |
L 1-2 (OT) |
| 2008 - NAIA National Championship |
| Holy Names |
W 3-2 (2OT) |
| Baker (Kan.) |
W 1-0 |
| Mount Vernon Nazarene (Ohio) |
L 0-1 |
| 2017 - NAIA National Championship |
| Marymount |
L 1-3 |
| 2019 - NAIA National Championship |
| Hastings (Neb.) |
L 0-2 |
| 2020 - NAIA National Championship |
| Corban (Ore.) |
L 1-2 |
| 2023 - NCCAA National Championship - Kissimmee, Fla. |
| Asbury (Ky.) |
W 3-1 |
| Wayland Baptist (Texas) |
W 1-0 |
| Central Christian (Kan.) |
W 3-2 |
| Campbellsville (Ky.) |
W 3-1 |
| NCCAA National Champion |
 2024 - NCAA DII National Championship |
| Cal Poly Pomona - West Super Regional, Wichita Falls, Texas |
L 1-2 |
|
