Final leaderboard:-14 M Kaymer (Ger) -10 F Zanotti (Par), C Nilsson (Swe) -9 J-M Lara (Sp), L Oosthuizen (SA), D Horsey (Eng), G Fernandez-Castano (Sp) Selected others: -8 F Molinari (It) -7 C Wood (Eng), R Fisher (Eng) -6 R Coles (Eng), D Clarke (NI)
Kaymer was competing for the last time before the Ryder Cup
Germany's Martin Kaymer made it five wins in a row for members of Europe's Ryder Cup team with a four-shot victory in the KLM Open in the Netherlands.
Kaymer carded a four-under-par 66 to finish 14 under and complete his second straight win after his USPGA triumph.
"It was my goal to play well here, but I was not expecting to win again," said Kaymer. "It's a nice feeling."
Paraguay's Fabrizio Zanotti and Swede Christian Nilsson both shot 69 to finish tied for second on 10 under.
Ryder Cup debutants Francesco Molinari (eighth) and Ross Fisher (11th) also finished strongly with final-round 66s.
Kaymer, who held a one-shot lead going into the final round, reached the turn at 12 under after birdies at the second and eighth holes, but a bogey at the par-three 10th allowed Nilsson to close to within a shot.
But the German picked up further birdies at the 12th, 16th and 18th to wrap up victory with room to spare.
"I felt very strong and I was very patient," said Kaymer. "The majors are the biggest tournaments we play all year and if you win one of those it gives you probably the biggest confidence you can get."
Kaymer's success in the USPGA at Whistling Straights last month, his maiden major victory, started an extraordinary sequence by members of Europe's Ryder Cup team ahead of the showdown against the US at Celtic Manor from 1-3 October.
Peter Hanson's Czech Open victory, Edoardo Molinari's wildcard-clinching Johnnie Walker Championship win and last Sunday's triumph by Miguel Angel Jimenez at the Omega European Masters have followed in quick succession.
Montgomerie will also be pleased by the form of Italian Francesco Molinari, who finished in a tie for eighth on eight under par, and Englishman Fisher, who was a further shot back.
One of Montgomerie's four vice-captains in south Wales, Darren Clarke, carded a 66 to finish six under.
England's David Horsey and Open champion Louis Oosthuizen of South Africa were in a group of four players at nine under.
The victory earned Race to Dubai leader Kaymer £248,364 in prize money and opened up a lead of more than £415,000 over his Ryder Cup team-mate Graeme McDowell.