The Ohio Prospects League and Diamond League are member association with the National Amateur Baseball Federation (NABF).  We have enjoyed over the past 15 years sending teams to their high quality competitive tournaments. 

NABF Historic Information

The National Amateur Baseball Federation was founded at an organizational meeting in Louisville, Kentucky in 1914. It is the oldest national amateur baseball organization in existence and the first amateur baseball group to require membership by league, rather than by individual teams.

Year after year since 1914, in times of peace and prosperity, despite two World Wars, the Great Depression and several recessions, the National Amateur Baseball Federation has operated continuously, providing the on-field excitement of the NABF national tournament games.

The NABF is a nonprofit organization run by a number of Officers and Directors from all parts of the United States. These volunteers help keep the organization running smoothly while regional and national championship tournaments are held coast to coast. The NABF hosts area regional tournaments and eight national championship series a year.

Tournaments for league members range from 10 and under through unlimited age divisions. Below is a list of our eight age groups and their classifications:

                                    (10 and under) Rookie Division

                                    (12 and under) Freshman Division

                                    (14 and under) Sophomore Division

                                    (16 and under) Junior Division

                                    (17 and under) High School Division

                                    (18 and under) Senior Division

                                    (23 and under) College Division

                                    (Unlimited age) Charles M. Blackburn Major Division