But they turned things around in the second half to win 31-28, and the four tries they scored secured a bonus point.
They play Dorking, who currently sit third in National League 2 East, at 14:00 on Saturday at Footes Lane, on a day when the Ladies side and St Jacques Vikings are also in action.
Raiders Ladies picked up their first win of the season on Sunday when they ear Aylesford Bulls Women 26-10 on the road.
They play Farnham at 13:00, the pitch will be confirmed dependent on the weather.
St Jacques Vikings will open things up on the main pitch at Footes Lane at 12:00 when they play Winchester II in Counties 2 Hampshire.