The sixth-seeded Bellis, from Atherton, ousted Granite Bay's Jump 6-3, 6-4 and the unseeded Hovsepyan, a 17-year-old left-hander from Danville, 6-2, 6-3.
Bellis, who won two national singles titles in the 12s last year, said of Hovsepyan: "She's a really good player. I was more consistent and waited for the right shot to be aggressive."
Hovsepyan played with left rotator cuff tendinitis but said that wasn't why she lost.
"She just made more balls and served at a higher percentage. She was offensive on her forehand. She ripped some good winners off that."
Bellis will face eighth-seeded Hadley Berg, 16, of Greenbrae in today's final at 9:30 a.m. Berg downed second-seeded Iris Lin of South San Francisco 4-6, 7-5, 6-2 in the semis. Bellis is 2-0 against Berg.
In the boys final, also at 9:30 a.m., top-seeded Brandon Sutter of El Dorado Hills will play seventh-seeded Ivan Kravtchenko of Sunnyvale.
Sutter routed ninth-seeded William Griffith of Fresno 6-3, 6-0 in the semis, while Kravtchenko outlasted sixth-seeded Lovedeep Singh of Sacramento 7-5, 5-7, 6-3.
Men's Futures -- Third-seeded Michael McClune of Irvine and unseeded Phillip Simmonds of Reston, Va., will meet in the final of the $15,000 Chico Futures today not before 11 a.m. at the Chico Racquet Club & Resort.
McClune eked out a 7-6 (3), 7-6 (6) victory over fifth-seeded Fritz Wolmarans of South Africa, and Simmonds surprised fourth-seeded Kento Takeuchi of Japan 6-7 (5), 6-1, 6-1.
In the doubles final at 10 a.m., top-seeded Daniel King-Turner of New Zealand and Nima Roshan of Australia will play second-seeded Devin Britton of Brandon, Miss., and Jordan Cox of Duluth, Ga.
ATP World Tour -- In a battle of 6-foot-6 veterans, sixth-seeded Marin Cilic of Croatia held off unseeded Sam Querrey 6-3, 3-6, 6-3 on a windy day in the semifinals of the grass-court Aegon Championships at Queen's Club in London.
Querrey, a San Francisco native and the 2010 champion at Queen's Club, is scheduled to play five matches for the Sacramento Capitals next month in World TeamTennis.
Top-seeded Max Mirnyi of Belarus and Daniel Nestor of Canada will face No. 2 seeds and defending champions Bob and Mike Bryan, former Stanford All-Americans, in today's doubles final. Mirnyi and Nestor defeated the Bryans 6-4, 6-4 last Sunday to retain their French Open title.
In Halle, Germany, unseeded Treat Conrad Huey of the Philippines and Scott Lipsky, an ex-Stanford All-American living in Huntington Beach, will meet top-seeded Aisam-Ul-Haq Qureshi of Pakistan and Jean-Julien Rojer of the Netherlands Antilles in the final of the grass-court Gerry Weber Open.
WTA -- Fourth-seeded Raquel Kops-Jones, a former Cal All-American from Fresno, and Abigail Spears of San Diego will take on top-seeded Liezel Huber of Houston and Lisa Raymond of Wayne, Pa., in the semifinals of the grass-court Aegon Classic in Birmingham, England.
Today -- $15,000 Chico Futures, Chico Racquet Club & Resort, 1629 Manzanita Ave., Chico, doubles final at 10 a.m., singles final not before 11 a.m., www.chicoracquetclub.com.
JUNE 25-JULY 8 -- WIMBLEDON, www.wimbledon.com.
July 7-15 -- WTA, Bank of the West Classic, Stanford, www.bankofthewestclassic.com.
July 9 -- World TeamTennis, Sacramento Capitals' season opener at Boston, 4 p.m., www.saccaps.com.