British Open champion, Ryder Cup winner, and now the first American to finish a season as the European Tour’s No. 1 player. It’s been quite the year for Collin Morikawa. The 24-year-old Californian demonstrated patience after a slow start and then world-class iron play down the stretch in making five birdies in his last seven holes to overhaul a fading Rory McIlroy and win the DP World Tour Championship with a final-round 6-under 66 on Sunday. With the three-shot victory, Morikawa also captured the Race to Dubai title as the leading points scorer on the European Tour in the 2021 season. “It’s an honor to be the first American to do that, to put my name against many, many greats and Hall of Famers,” Morikawa said. “It’s special. I get touched up just talking about that. “To close it out not just with a top 10 but to actually win …