Jake Knapp has won the Mexico Open, and it wasn’t easy until the end. Knapp had a four-shot lead going into the final round. That was cut in half in three holes and gone after seven holes. But the 29-year-old rookie from UCLA never lost the lead. He hit only two fairways and leaned on a short game that carried him to a 71. He won by two shots over Sami Valimaki. The victory gives Knapp a spot in the Masters and the PGA Championship. He also gets into the remaining five signature events with a $20 million purse.