Tri-Valley Men's Senior Baseball League

2018 World Series 45+ Division Champions MSBL National Story
2018 Woodland Davis Labor Day Tournament 45+ Giants Division Champions
3 Time Monterey Bay Sea Otter Champions Masters 45+ Division

I’m deeply saddened of the passing of Bill “Tiger” Tonis who tragically lost his life in a car accident on Thursday, January 12, 2017.

Tri-Valley has lost one of it's most beloved members of their family to have ever blessed us with his presence.

Billy  touched us on so many fronts throughout the years. His compassion for others was unmatched, whether it was on the field of play or in the dugout. Billy was always giving of himself, teaching, mentoring and supporting all members of the Tri-Valley family.

Mr. “Tiger” was a fierce competitor both as a player and coach having several League Championships and 3 National World Series Father/Son Championships.  Billy was very proud of his individual accomplishments and his World Series Rings, but his greatest joy was to be on the field of play with his son William as a father, coach and all the other fathers/sons competing in the game he truly loved.

Billy was one of the original members of Tri-Valley, served as an instrumental Board Member in the earlier years, was inducted into the HALL OF FAME in 2003 based on his individual accomplishments and earned the LIFETIME ACHIEVEMENT AWARD in 2008 for his ongoing contributions and support of the league and his players.

Thank you Cherlye Tonis for allowing Billy to have shared a part of his precious life with all the Tri-Valley family. We are forever grateful to have the memory of this wonderful man who will always be in our hearts.    

Services for Bill will be held at:

Graham-Hitch Mortuary on Sunday January 22nd at 1:30pm
4167 First Street
Pleasanton, Ca.

Donny DeCordova announced as 2016 MSBL Man of the Year


2016 35+ Woodland Tournament Champions Tri Valley Astros

2015 World Series Champions Tri Valley Giants

2015 45+ Mountain Champions Article

2015 Woodland Best of the West 35+ Champions

Tri Valley White Sox
25+ American World Series Champs


Tri Valley Shockers
35+ Mountain World Series Champions

Click to see MSBL Article

MSBL National Article on Tri Valley 65+ Division

Congratulations to John Sellick and the 25+ Tri Valley Cardinals winning the Championship in the Woodland Tournament

Ben O'Bryan returns to the mound in his first start for the 45+ Tri Valley Giants after a one year absense
recovering from brain surgery. Ben's line was 4IP, 3 K's, 3 Hits, 2 Runs, and 1 Earned Run.

Welcome Back Big Ben!!

Tri Valley MSBL All-Stars vs Redwood Empire MSBL All-Stars, Sunday August 4th
25+ National TVMSBL 8 vs. 25+ National REBL 6
25+ American TVMSBL 8 vs. 25+ American REBL 2
35+ TVMSBL 5 vs. 35+ REBL 2
45+ TVMSBL 4 vs. 45+ REBL 3

Advertise Your Business

The Tri Valley MSBL Business Page is now available for $50.00/Year. Advertise your business to all the players in our league and the many people who visit our website. Click on the Business Page link to the left to register your business now. Please have a business card ready to upload in either jpg or gif format.

The Proud Family of Tri Valley

  • 16 National World Series Championship Titles
  • One of the top tournament leagues in the nation and the only all wood bat MSBL league in the Bay Area.
  • MSBL's leading tournament league that sends more players/teams to the MSBL National World Series in Arizona than any other league in the nation.
  • A league where games are played on quality college fields around the Bay Area including: Chabot College, Diablo Valley College, Laney College, Los Medanos College, and Solano Community College.

  • In association with the CCUA, a well established organization, with quality umpires. Two umpires for every regular season game and three for each game of the championship series.

  • The only league in the Bay Area to play night games under the lights during the week and on the weekends.

  • Plays 20 regular season games. Semi Final and Championship Series are best 2 out of 3 games.
  • Will host an All-Star Tournament with other MSBL Leagues on August 3rd, 4th and 5th.
  • Provides each team with Gear bag, Helmets, Catcher's Gear, and Wood Bats.
  • Championship Teams receive $500.00 and Runner's up receive $250.00 towards the National World Series Tournament Fees or 2013 Team Fees.

We're talking HARDBALL!!!

Fastballs, Curveballs, Bunts, and Stolen Bases

This is the real thing!


Located in the East Bay of the San Francisco Bay Area

Ages 21 and up. Individuals and Teams Welcome.

Schedule runs from April through October. All games played throughout the week.

No games on Holiday weekends.

National Tournaments played in Arizona during the month of mid October and November.

League Email:


Affiliated with the National

Click here for National Web Site