Pete Griffiths, whose immense support for Play With Fitness was evident, also scored, while Tom Manson managed the other after a perfect assist from Natalie Yanda.
Gideon said it was good to be back on the pitch after a long lay-off.
"I'm happy to be back but with a bang. It's good to be back and with a formidable win," Gideon told Standard Sports.
Johnnie Walker, whose team comprised Lekishon, Rowena Stichbury, Emily Stonewigg and Charlotte Manson, played their hearts out but could only manage a goal that came in the third chukka. It was scored by Stichbury.
The event enters the second day on Saturday.