In the team competition, Burroughs finished tied with Saugus for the third league spot in Wednesday's match. However, the Indians bested the Centurions in strokes per match over five contests to claim the final playoff spot.
Hart won the league and Valencia was second. Burbank finished fifth.
The teams will take part in the a CIF regional May 9 at Sterling Hills Golf Course in Camarillo.
O'Connor, a senior, came up big in the two-day event, shooting rounds of 72 and 69 for a total of 141, which was three under par. Justin Renaux of Saugus tied O'Connor by shooting 68-73 ? 141.
The two-day winner was Hart's Jason Kang, who shot 70-70 ? 140.
The league's most valuable player is Valencia's Louis Amira. He will be the league's No. 1 player in the individuals.
The players will take part in individual competition May 15 at the River Course at Alisal in Solvang.
Burroughs' Jeff Looby (77-76 ? 13) and Burbank's Matt Kurihara (77-76 ? 153) were the next-best finishers. Indian Chase Dontanville (74-81 ? 155) and Bulldog Andy Mouron (75-81 ? 156) followed.
TRACK AND FIELD
Foothill League junior varsity/sophomore-freshmen finals: Burbank High had its share of league champions in Tuesday's competition at College of the Canyons.
In the boys' soph-frosh event, Jordan Sanders won a title in the shot put (51 feet 2) and the discus (130-5) and Izzy Soto won the triple jump (39-4). In girls' JV, Tiffany DeRamus captured the triple jump (32-6 1/4 ).
Burroughs 10, Burbank 5: Angie Lopez was four for four with a double for the Bulldogs in a Foothill League losing effort Thursday.
Burbank also received some fine defensive plays from Kerry Harrison and Jennifer Aviles.
Bellarmine-Jefferson 7, Salesian 0: The Guards won their fifth game in a row Tuesday in a Santa Fe League game at Brace Park.
Bell-Jeff (12-6-1, 7-1) used a sixth-run sixth inning to get the win that helped it remain in second place in league.
Guards Sean Fernandez, Josh Lepe, and Andrew Loera had two hits and two runs batted in.