Ygnacio Valley at Mt. Diablo — Early-season league test on Dec. 19

Mount Diablo High School -

Ygnacio Valley visits Mt. Diablo on Friday, Dec. 19, for a league matchup at Mount Diablo High School. Tip is set for 5:30 p.m. PST. The Ygnacio Valley Warriors (0-0) travel to face the Mt. Diablo Red Devils (0-0) in what figures to be an early measuring stick for both programs as the season opens.

Game details

• Date: Friday, Dec. 19, 2025

• Time: 5:30 p.m. PST

• Location: Mount Diablo High School

• Game page: https://scorebooklive.com/california/basketball/games/5941541-ygnacio-valley-vs-mt-diablo

• Home: Mt. Diablo Red Devils — https://scorebooklive.com/california/basketball/teams/158456-mt-diablo-red-devils-jv (record: 0-0)

• Away: Ygnacio Valley Warriors — https://scorebooklive.com/california/basketball/teams/158468-ygnacio-valley-warriors-jv (record: 0-0)

A quick note on context

There’s no last-meeting information on file for this listing, so fans should treat this as a fresh matchup this season. Both teams are opening their campaign slate and will be looking to establish early momentum; Mt. Diablo’s next scheduled game after this is Campolindo at Mt. Diablo on Jan. 6 (https://scorebooklive.com/california/basketball/games/5941542-campolindo-vs-mt-diablo), while Ygnacio Valley heads to Acalanes on Jan. 6 (https://scorebooklive.com/california/basketball/games/5918788-ygnacio-valley-vs-acalanes).

Streaming and tickets

• Mt. Diablo NFHS network page (may carry live stream): https://nfhsnetwork.com/schools/mt-diablo-high-school-concord-ca/basketball?referrer_name=scorebooklive&utm_campaign=scorebooklive&utm_medium=referral&utm_source=scorebooklive

• Ygnacio Valley NFHS network page (may carry live stream): https://nfhsnetwork.com/schools/ygnacio-valley-high-school-concord-ca/basketball?referrer_name=scorebooklive&utm_campaign=scorebooklive&utm_medium=referral&utm_source=scorebooklive

Follow and fan engagement

Follow the teams on SBLive to stay updated (links above) and to boost each program’s fan count. Picks are available on the team pages and the game page for fun fan engagement; both teams currently show 0 picks and 0 fans, but those numbers can change — make your pick if you want to support your squad. Win-chance projections and pick totals change as the game approaches, so check back on the game page for updates: https://scorebooklive.com/california/basketball/games/5941541-ygnacio-valley-vs-mt-diablo

Be there early — or tune in — and catch a potentially competitive league opener as two teams chase their first win of the season.