The game was effectively settled in the second period when Cheltenham sharp-shooting resulted in six goals - by Jack Collier (2), Will Middleton, Adam Legge, Marc Tarrer and Rudi Polster.
Five-goal Tom Curwen was always a threat for Lancaster, but when his team rallied in the later stages they were thwarted by some excellent goalkeeping from Sam Legge.
In the final Division 1 match of the weekend, Solihull demonstrated their success against Cheltenham was no one-off. They demolished Sheffield, scoring ten times before Sheffield registered their first goal, and eventually won 13-5.
In Division 2, Sutton & Cheam and Exeter drew 11-11 - one of the best games of the day. Exeter held a 9-7 lead towards the end of the third period, but soon trailed 11-9 as Sutton countered through Ryan Symington, Jack Watt, Tom Aitken and Stephen Bayles. Two penalties converted by Kameron Power - the last with 39 seconds remaining - rescued a point for the Devon club.
Photo (Trevor Hyde): Solihull's most senior player, Nick Beard.