Justin Burnell's side take a 19 point advantage in to the second leg against Bristol.
London Welsh may take a 19-point lead into the second leg of their Greene King IPA Championship final with Bristol, but they'll head to the Memorial Stadium next week still targeting a win.
Tries from Nathan Trevett, Nick Scott and Carl Kirwan helped Welsh to a 27-8 victory over Bristol in front of over 5,000 fans at the Kassam Stadium on last night, with the return leg to come on June 4.
"We will be going there with the mind-set that we have to win the game," said London Welsh head coach Justin Burnell. "That will be our focus; we've got to go and win the game.
"We've still got a long way to go - there's another leg to play. We know how good Bristol are - they're capable of scoring points. We're happy with the three tries and 19 points. Is 19 points enough? I'd rather be 19 points up than 19 points down.
"In hindsight we should be going there 26 points [up] - I honestly thought Nick Scott was under the posts. But at least we're in the right areas.
"It's all about next week and the preparation for us.
"We're a pretty tough bunch and we don't roll over. We saw that in respect to Leeds in the semi-final. Thirteen points down we were dead and buried and everyone wrote us off.
"That's one thing we have got, spirit. Aside from the 19 points we'll also be taking a lot of spirit with us [into the 2nd leg]."
As the countdown continues for RWC2015, Tournament Chief Executive Debbie Jevans visited the Millennium Stadium to discuss preparations for the eight matches and reveal the positive news that 100,000 tickets for games at the home of Welsh rugby have sold in the last seven days.
Jason Harries is targeting a first win on the World Series circuit this season with Wales. The series returns to action this weekend in Dubai where Harries is part of a team hoping to build from its efforts in round one in October.
Wales skipper Jevon Groves says his side have addressed a few points from Gold Coast and aim to 'hit the ground running' in the next two rounds of the World Series, kicking off with this weekend in Dubai before heading off to South Africa next week.
Wales Sevens manager Steff Thomas is hopeful his side can build from a quarter-final spot in the opening round of the World Series in Australia when his side take part in the forthcoming double header in Dubai and South Africa.