Jhonnel Ababa, who came into the event oozing with confidence after back-to-back victories in the PGT Asia at Eagle Ridge and Pradera Verde, failed to tame the buffeting wind although he birdied the last hole to save a 73 and tie 2004 champion Tony Lascuna, who gunned two birdies against three bogeys
, at fifth.
And with two further pars it looked as if the Northern Irishman would be right in the mix come the end of the day but a bogey
on the last left him on one under for his opening round.
Meanwhile, Woods' closest rival Rory McIlroy shot a 4-over par with four bogeys
and a double bogey
on the sixth hole for a 74 and a five-way tie for 10th place.
David Dixon putted a sixunder par 66 which included seven birdies and just one bogey
World number two Kaymer is six shots back after an inconsistent first round where four birdies on the front nine were interspersed with two bogeys
However, the Ulsterman had a hat-trick of bogeys
from the 11th, ran up a six on the long 17th and turned in a three-over 39.
It was a similar story on the back nine as a bogey
on the tenth was followed by a double bogey
Forsyth's playing partner Andrew Dresser also got into trouble at the sixth - the longest par-4 in US Open history at 515 yards - and the Texan slumped to a triple bogey
Down to three under par and nine adrift of Immelman, Casey was in a tie for sixth with Open champion Padraig Harrington, who threatened to get into contention when he birdied the second and third, but then followed five successive pars with a bogey
on the ninth.
He fired a 2-under 70 at La Quinta in a round that featured two bogeys
and a double bogey
through four holes.
The South African hit a birdie on the short sixth to tie Randhawa at the top but then a bogey
from the Indian allowed Goosen to take the outright lead and he was 11-under as he completed the front nine.
16 and 18, dropping her instead to joint second at 70 with Kim, who also squandered an impressive 34 start with a shaky finish marred by a bogey
on the last hole.
Thai Pavarista Yoktuan also wavered with a closing bogey
and settled for a 70 while Thanuttra Boonraksasat, also of Thailand, birdied two of the last six holes to save a 71 for sixth.
Chihiro Ikeda placed fourth following a 70 and 210 while Dottie Ardina skidded with a 73 after a triple bogey
seven on the final hole to place fifth with a 211 total.
2 and 9, the first negating his missed green bogey
on the eighth and the other shoving him to the top of the heap.