Mariners Elite Coaching Lineup – 2025-26

Markham District Baseball Association is pleased to announce the following appointments for the 2025-26 EBLO season:

18U - Danri He:

Danri He currently serves as the Head Coach for the Mariner 17U Elite team, following his tenure as an Assistant Coach for the 18U Elite program. He brings valuable experience from his time as a player for Toronto Metropolitan University's Men's Baseball team.

16U - Mark Cheeseman:

Mark Cheeseman has been a coach within the Markham Mariners Program for seven years and presently leads the Mariners 15U Elite team. His distinguished playing career includes competing in OUA baseball at Brock University, where he achieved the honor of winning two National Championships and was named Brock Pitcher of the Year in 1998. Additionally, he has competed in the IBL with Hamilton and senior baseball circuits, earning a bronze medal at the National Championships in 2003.

15U - Bryan Chao:

Bryan Chao has extensive coaching credentials, having worked with various AAA teams within the Markham Mariners Program. He is also recognized as an accredited AAA Catching Instructor. Moreover, he contributes his expertise as an instructor for the Toronto Blue Jays Academy, where he plays a significant role in developing aspiring athletes.

14U HP - Andy Orfanakos:

Andy Orfanakos assumed the role of Head Coach in the Mariners Elite Program in 2023 and is currently the Head Coach of the 18U Elite Team. Since 2021, he has also been serving as the Pitching Coach for the University of Toronto Baseball Team. His playing career includes international experience (Germany, Switzerland, Australia, South Africa) and was a member of the Greek National Baseball Team from 2012 to 2018, showcasing his dedication and expertise in the sport.