J.B. Holmes had a tap-in eagle to go along with eight birdies for a 10-under 62 to build a four-shot lead after the opening round of the Cadillac Championship.
Rory McIlroy again felt tentative with his swing and shot 40 on his opening nine holes before finishing without a par on his last six holes — an eagle, three birdies and two bogeys that allowed him to salvage a 73. The world's No. 1 player has shot 73-74-73 in his three rounds in Florida this year.
Phil Mickelson shot 74 and failed to make a birdie for the first time in 186 rounds on the PGA Tour, dating to the final day at Olympic Club in the 2012 U.S. Open.
Ryan Moore hit into the water and made double bogey on the 18th hole and shot a 66.
Inbee Park, Tseng share lead
Inbee Park and Yani Tseng each shot 6-under 66 to top the leaderboard after the first round of the LPGA Tour's HSBC Women's Champions.
The second-ranked Park birdied the par-5 18th on Sentosa's Serapong Course to tie Tseng. Coming off a tie for second last week in the LPGA Thailand, Tseng won the last of her 15 tour titles in 2012.
American Angela Stanford, the 2012 winner, was a stroke back.
Top-ranked Lydia Ko was at 68 along with Karrie Webb, Jenny Shin, Mo Martin and Mariajo Uribe. Lexi Thompson had a hole-in-one on the par-3 14th in her 69.
Michelle Wie had a 73.
Defending champion Paula Creamer opened with a 74. Last year, Creamer won with a 75-foot eagle putt on the second hole of a playoff with Azahara Munoz.
Hubbard leads Puerto Rico Open
PGA Tour rookie Mark Hubbard closed with a birdie in windy conditions for a one-stroke lead in the Puerto Rico Open.
Hubbard opened with a 4-under 68 at Trump International Golf Club-Puerto Rico. He birdied Nos. 4, 5 and 6, dropped a stroke on the par-3 eighth and finished with a birdie on the par-4 ninth.
Chris Smith, Billy Mayfair and Emiliano Grillo were tied for second.
David Duval, Jonathan Byrd and Alex Cejka were in the group at 70.
Busch won't be charged
The Delaware Attorney General's Office announced it will not pursue criminal charges against NASCAR driver Kurt Busch for an alleged act of domestic violence committed last year against his ex-girlfriend, Patricia Driscoll.
For the time being, however, Busch remains indefinitely suspended from NASCAR competition.
Earlier this week, Busch agreed to NASCAR's terms to begin a reinstatement process but NASCAR officials said at the time his eligibility for eventual reinstatement could hinge on whether he was criminally charged.
AROUND THE HORN
Chile officials say they will back a request by former world No. 1 Marcelo Rios to have the International Tennis Federation investigate whether Petr Korda committed a doping violation in the 1998 Australian Open. Korda beat Rios 6-2, 6-2, 6-2 in the final. Korda tested positive for a banned steroid later that year at Wimbledon, but wasn't penalized for it until after he retired in mid-1999.
Boxing: Undefeated WBO lightweight champion Terence Crawford is moving up in weight to fight for the vacant junior welterweight title in his first bout of 2015. He will take on No. 2 world-rated junior welterweight contender Thomas Dulorme on April 18 at the University of Texas-Arlington. .
Skiing: Canadian skier Erik Guay will remain sidelined for the World Cup season because of knee surgeries and will focus on making a full recovery for next season. The three-time Olympian had two left knee surgeries last year and hasn't raced this season.