Oh ok. So were there ever direct services to Guildford via Ascot?
I'm not sure when direct non-peak services from Waterloo to Guildford ended. Probably sometimes in the 80's.
In the 1978/79 WTT the off-peak service from Waterloo was:
xx:05 Guildford via Richmond fast to Feltham Headcode: 26
xx:23 Guildford via Richmond fast to Richmond Headcode: 28
xx:35 Reading via Richmond fast to Feltham Headcode: 36
xx:53 Reading via Richmond fast to Richmond Headcode: 38
The xx:35 connected into the xx:23 and the xx:05 connected into the xx:53 at Ascot, so there was a logic to the service pattern even if doesn't seem so from what's above.
I also have vague memories of there being a direct service during the off-peak in the early 90's with the service pattern between one train an hour to Reading and one to Guildford, with the other half-hour being covered by a Reading - Guildford via Ascot service and vv. As I say this is only vague memory but I am fairly certain it happened