Started his baseball career via “walk on” at Blinn College as a freshman where he played first base. Was named Second Team All Conference where he hit .342 with 6 Hr. Gary’s second year at Blinn, him received First Team All Conference honors by hitting .389 with 12 Hr. After receiving an associate’s degree at Blinn, Herrmann was drafted by the Atlanta Braves in the 57th round. Transferring to Southwest Texas State where he received First Team All Conference honors by playing first base and hitting .375 with 9 hr. He also threw about 10 innings throughout the year in relief. During the summer, Gary got an opportunity to play in the Kansas Jayhawk league for the Clarinda Iowa A’s where he played right field and lead the league with a batting average of .419 and 16 homeruns. His senior year, Herrmann was named the Southland Conference player of the Year by leading the conference with an average of .392 and 20 hr. Also adding about 10 innings in relief for the year.
After college, Gary was contacted by a Philadelphia Phillies scout who signed him as a free agent Pitcher. Then started his 6 year career with the Phillies. In those 6 years Gary was both a starter and reliever. In his second year, Herrmann earned the title of Minor League Pitcher of the Month by going 6 and 0 with an era of 1.24. Shortly after he injured his elbow and had to have surgery. Post elbow-rehab, Gary was promoted through the ranks over the next couple years reaching AA in Reading, PA. He then reinjured his elbow and chose not to have another surgery causing his playing career to come to a close. Gary then became a Houston Police Officer where he has been promoted to the rank of Sergeant. While working, Gary attended Midwestern State University where he finished his degree and received a Bachelor of Science.