The Dons (16-14), who beat Whittier 4-3 in eight innings on May 6 to earn their spot in the postseason, have advanced with wins over Bloomington and No. 3 seed West Torrance.
El Rancho is led by senior Vince Fuentes, who has a shot to score a school-record 21 career wins with a victory on Tuesday. He also has 12 RBIs and 11 doubles. Apple Valley (13-10) advanced with a 5-4 win at Barstow.
Here’s a brief look at today’s other area playoff games:
La Mirada at Rancho Cucamonga, 3:15 p.m. >> The Matadores (22-7), who won their second Suburban League title in three seasons, advanced with a 1-0 win over Ayala. They are led by junior Kevin Kendall and senior Daniel Jung, who have 28 and 27 RBIs, respectively.
Rancho Cucamonga (17-10-1) advanced with a 6-3 win over Burbank Burroughs.
Cal at Fullerton, 3:15 p.m. >> The Condors (19-9) are led by catcher Eric Sotelo and infielder Gilly Rodriguez, who have 13 and 12 RBIs, respectively. Cal advanced with a 5-4 win over Schurr.
Fullerton (15-14) got a forfeit win over Torrance last week.
Santa Fe at Rialto, 3:15 p.m. >> The Chiefs (17-13) advanced with a 5-0 win over Grace Brethren. They are led by pitcher Robert Lucia, who pitched a no-hitter in the first round.
Rialto (20-7) beat Alta Loma in the first round.
Montebello at Century, 3:15 p.m. >> The Oilers (19-11) advanced with a 10-1 win over Santa Ana Calvary Chapel. They are led by sophomore Jose Macias, who is hitting .550 with 15 RBIs.
Century beat Troy in the first round.
Cantwell-Sacred Heart of Mary at Garey, 3:15 p.m. >> The Cardinals (25-4) opened with a 4-0 win over Ontario Christian. They feature freshman Jared Thomas and Andrew Quillen, who have 24 and 20 RBIs, respectively.
Garey advanced with a 4-2 win over San Marino.
La Habra at Redlands East Valley, 3:15 p.m. >> The Highlanders (26-1) are seeking their first title since 1982. They are led by pitcher Janelle Rodriguez and Kira Cauley, who had a grand slam in a 10-0 win over Arroyo Grande in the first round.
Redlands East Valley (17-6) advanced with a 7-6 win over Canyon Springs.
Montebello at Silverado, 3:15 p.m. >> The Oilers (15-12) advanced with a 9-0 win over Westminster La Quinta. Silverado (22-5) beat Moreno Valley (5-4) in the first round.
CIF STATE SOCAL REGIONALS
El Rancho at L.A. Jordan, 7 p.m. >> The Dons (22-6) lost in the CIF-SS Division 5 semifinals last week, They get another shot to continue their season against the Bulldogs (33-3), who won the L.A. City Section Division III title.