Gwynn is head coach of the Aztecs and coached Stephen Strasburg, now a right-handed pitcher for the Washington Nationals, when Strasburg played for SDSU.
"Coach is going through something that not too many go through, we're all supporting him -- and it's great to have him out here supporting us", said Strasburg.
Having been away for four months from coaching, Gywnn said he plans to reconnect with the team, whose season starts next week.
"I have my days, and some days I try to do too much and I have to go home and chill, but this was something I needed to be at and I'm happy to be here", said Gwynn.
While he didn’t run the race, Gwynn was active at the event; signing autographs for numerous fans as well as posing for pictures and giving his advice on everything from baseball legend Jackie Robison to his plans for the upcoming spring baseball season.
Gwynn just completed treatments for cancer on January 9, according to ESPN.
The former Padre was diagnosed in August of last year and had what was his second related prodcedure in 1997 for what was thought at the time to be benign tumors in his parotid.