Lee Westwood and Luke Donald both recorded comprehensive victories in their opening games at the World Match Play Championship in Casares.
Englishman Westwood beat Denmark’s Anders Hansen 6&5, while countryman Donald defeated American Ryan Moore 4&3 in the first round of group matches.
Northern Ireland duo Rory McIlroy and Graeme McDowell also won but Paul Casey lost 3&1 to Alvaro Quiros of Spain.
Ian Poulter birdied the last to force a half with Italy’s Francesco Molinari.
McIlroy defeated South African Retief Goosen on the last hole and US Open holder McDowell beat Open champion Louis Oosthuizen 3&1.
Spaniard Miguel Angel Jimenez trounced Masters champion Charl Schwartzel 6&5, while former world number one Martin Kaymer beat 2009 US PGA champion YE Yang 2&1.
The format sees 24 players divided into eight groups of three based on world rankings, with two points for a win and one for a halved match.
The top two from each group will progress to the last 16 knockout stages.