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Meet our Coaches
Great Miami Rowing Center head coach Marc Oria

Marc Oria, PH.D. 

Head Coach

Marc was born and grew up in Barcelona, Spain. He began rowing at the age of 8 at the Reial Club Maritim de Barcelona. He earned numerous medals at regional and national championships and rowed on the Catalunya and Spanish National Teams from 1998-2007. Marc began his coaching career in 2001 as an instructor, then director and head coach at the Reial Club Maritim de Barcelona until 2008. His resume includes experience as a Catalunya National Team coach (2006). Several of his athletes medaled at the World Rowing Junior Championships and the World Rowing Championships, while some went on to become finalists at the 2016 Olympic Games.  Marc and his family moved to Cincinnati in 2013, where he served as assistant coach for the University of Cincinnati varsity women’s team (2016) and as a varsity women’s head coach (2017-19). Marc holds the USRowing Level 3 Coaching certification, which is the highest rowing coach designation.  
Marc is a neuroscientist at Cincinnati Children’s Hospital where he is a leading expert in congenital malformations.  


Sam Seeley

Assistant Coach-Middle School 


Tim Binnig

Assistant Coach-Middle School

Tim is from Columbus, Ohio, and began rowing for Westerville Crew in eighth grade. While there he competed several times at USRowing Youth Nationals and the Canadian Royal Henley Regatta as a Lightweight rower. He attends Miami University in Oxford, Ohio where he is a Senior studying Political Science and Psychology. While at Miami, he has been heavily involved in the club rowing team there where he has held positions including Men's Captain. Currently, he acts as their Student Coach. He joined the team in the Fall of 2021 to coach JRow and is actively working on his Level 2 Coaching Certification.


Corey Lach

Masters Coach

Corey Lach began his rowing career at St. Francis de Sales High School in Toledo, OH. Corey then went on to row for 3 years with the Ohio State Crew Club as a lightweight. During the summers while enrolled at Ohio State, Corey also coached Learn to Row and Recreational Masters practices at Greater Columbus Rowing Association on Griggs Reservoir. After a five-year break from rowing, Corey is now sharing Masters coaching duties on the Great Miami with Kristina. Corey especially enjoys teaching brand new rowers the fundamentals of the sport as well as acting as the coxswain for the Masters boats during regattas. He is excited to share the enjoyment of rowing with anyone who will join GMRC on the river.


Great Miami Rowing Center masters coach Kristina Latta-Landefeld

Kristina Latta-Landefeld

Masters Coach

Kristina Latta-Landefeld started her rowing career at St. Ursula Academy in Toledo, OH, and continued on at Smith College in Northampton, MA. She rowed for New York Athletic Club during the summers and after college. Her rowing career includes stints as a collegiate coach, boat repair person, cross-country boat trailer driver, and community rowing club administrator. Kristina is passionate about getting people engaged on or near the Great Miami River through rowing and other recreational means to find a sense of empowerment, peace, and team.

Contact Us: Great Miami Rowing Center

PO Box 1035 Hamilton OH 45012

Phone: (513) 857-2494