Christchurch:American rookie Michael Letzig shot a four-under-par 68 on Friday to take the clubhouse lead at the New Zealand PGA golf championship after a rain-interrupted second round. Letzig, with a seven-under two-round total of 137, held a two-stroke lead over New Zealand's Phil Tataurangi (68) among players in the clubhouse after completing their first two rounds. Several players, including overnight leader Ryan Howison of the United States, were still on the course when persistent rain forced the abandonment of play at 6.30 pm local time. Letzig shot a tidy 69 in the first round on Thursday, playing among the higher-scoring groups later in the day, but took advantage of an early start on Friday to post the day's joint-best round. Letzig held the clubhouse lead but had been joined on seven-under by Australian veteran Peter Senior, Howison and fellow American Chez Reavie. Howison, who led by one shot overnight, was even-par through 10 holes Friday. Senior, who started the day one off Howison's lead, was one under through 13 holes and Reavie was two under through 13. Sal Spallone of the United States was one stroke behind that group, three under par for the day through 13 holes and six under for the tournament. New Zealand's Phil Tataurangi and Australian James Nitties completed their second rounds and were a shot further back at five-under-par, along with Matthew Jones of Australia who was one under through six holes.