The start of play was delayed four hours by rain. There were 57 players of the 81 starters still on the TPC Sugarloaf course when the round was suspended because of darkness.
Bryant completed 4-under-par 68, and David Frost was 4-under with five holes left.
The first round will be completed this morning, followed by the second round.
The 50-year-old Bryant is a rookie on the Champions Tour who was away from golf for three years because of two surgeries on his left wrist.
Frost, the Toshiba Classic winner in California in March, has finished in the top 10 in each of his five events this season.
Six players are 3-under, including Duffy Waldorf and Neal Lancaster, who completed their rounds.
Augustan native Larry Mize did not compete his round.
EUROPEAN TOUR: In Valencia, Spain, former Oklahoma State golfer and U.S. Amateur champion Peter Uihlein shot 4-under-par 68 to take a one-shot lead after the second round of the Spanish Open.
Uihlein, one of the hottest players on the tour, had six birdies and two bogeys on the Parador de El Saler course, leaving him at 6-under 138.
Chile’s Felipe Aguilar, who had 71 on Friday, remains in contention for his second European Tour victory. He is one stroke behind with France’s Raphael Jacquelin (66 on Friday) and Sweden’s Rikard Karlberg (67).
Five players are another shot back. Spain’s Sergio Garcia is seven strokes off the lead after 73.
The two former Augusta State golfers in the field missed the cut, which fell at 146. Jamie Elson shot 80-73–153 and Oliver Wilson had 79-81–160.
Uihlein, whose father, Walter, is the CEO of golf equipment company Acushnet – has been in stunning form thus far in 2013.
The 23-year-old finished in the top five in his last European Tour appearance at the Tshwane Open in March, followed seven days later by a top 10 at the Puerto Rico Open on the US PGA Tour. He is now leading for the first time.
LPGA TOUR: In Kapolei, Hawaii, Suzann Pettersen shot 4-under-par 68 at wind-swept Ko Olina to maintain a one-stroke lead after the third round of the LPGA Lotte Championship.
The 32-year-old Norwegian, a 10-time LPGA Tour winner ranked sixth in the world, is at 14-under 202.
South Korea’s Hee Kyung Seo is second after 66, and defending champion Ai Miyazato is third at 11-under after 70.
Part-time Augustan Nicole Jeray shot 73-78–151 to miss the cut.