A disastrous playoff hole has cost Steven Alker a second straight win on the PGA Champions Tour.

Greg Norman still believes he'll win the war, but the opening battle is looming as a bloodbath for his rebel golf league.

Kiwi world number three Lydia Ko has made a solid start to the defence of her title at the Lotte Championship in Hawaii.

Tiger Woods has defied the odds to post an under-par opening round to begin his quest for a sixth US Masters title and complete an incredible sporting comeback.

Tiger Woods' second round at the Masters seemed like a constant ride from one end of the success spectrum to the other, his fortunes changing at an almost dizzying pace during one stretch of the afternoon.

Tiger Woods' severe leg injuries have kept him away from competitive golf for 14 months, though judging by his bulked-up physique at Augusta this week they have not kept him out of the gym.

OPINION

"I do." Rarely, outside the vows of matrimony, have those words carried such profundity. That Tiger Woods was even being asked if he believed he could win his sixth Masters, just 14 months after his car plunged into a Los Angeles ravine, stretched credulity. But the fact that he answered in the affirmative redrew the parameters of a sporting renaissance. It was a reminder of how, even at 46 and with his mobility impaired by a reconstructed right leg, he had lost none of his gift for theatre.

The wait is over. Tiger Woods has declared his right leg has passed the fitness test and will tee it up in Friday's first round of the 86th Masters.

Kiwi golfer Steven Alker cruised to his second victory on the PGA Tour Champions, shooting a 7-under 65 in the final round today to win the Rapiscan Systems Classic by six shots.

Lydia Ko failed to challenge for her third major title, finishing 10 shots behind Jennifer Kupcho who took out her first LPGA title at the Chevron Championship.

Lydia Ko has picked up where she left off at one of her favourite majors.

Lydia Ko has had a tough day in the second round of the Chevron Championship at Mission Hills.