Benson and Kruger were two shots clear when play was suspended by darkness with 24 players still to finish. Temperatures hit 105 degrees during the joint European Tour and Sunshine Tour event at Leopard Creek Golf Club.
Jean-Baptiste Gonnet, George Murray, Alan McLean, and George Coetzee were tied for third at 66.
Two-time defending champion Pablo Martin opened with 81.
LPGA TOUR: In Orlando, Fla., Na Yeon Choi shot 6-under-par 66 to take a one-stroke lead over Morgan Pressel and Karrie Webb after the first round of the LPGA Tour’s season-ending Titleholders.
Choi, the LPGA Malaysia winnerin October, birdied five of the first eight holes on the back nine at Grand Cypress before dropping a stroke with a bogey on the par-4 18th.
Defending champion Maria Hjorth and Cristie Kerr shot 68, and Anna Nordqvist was another stroke back along with Paula Creamer, Sandra Gal, Mi Hyun Kim, Candie Kung, Azahara Munoz and Dewi Claire Schreefel.
Top-ranked Yani Tseng had 70, and Michelle Wie opened with 71.
EUROPEAN/ASIAN TOURS: In Bahru, Malaysia, Joost Luiten shot 8-under-par 63 to take the clubhouse lead in the first round of the weather-interrupted Iskandar Johor Open.
Luiten birdied the final hole for a one-shot lead over defending champion Padraig Harrington, Marcus Fraser and Gregory Bourdy at Horizon Hills Golf and Country Club in Malaysia’s southern Johor state.
Only 78 of the 156 players in the event were able to complete their rounds after lightning halted play.
CALLAWAY/PEBBLE BEACH: In Pebble Beach, Calif., Kyle Thompson, set to rejoin the PGA Tour after finishing 21st on the Nationwide Tour money list this year, had a hole-in-one and shot 8-under-par 64 at Pebble Beach to take a one-shot lead of the Callaway Golf Pebble Beach Invitational.
The former South Carolina player aced the 109-yard
seventh, his 16th hole of the round. He also had seven birdies and a bogey.
Jason Kokrak had 65 at Del Monte. Two-time PGA Tour winner Jason Bohn was five strokes back in a group that included Harrison Frazar and D.A. Points.
Oline Browne had 71, the top score among 10 Champions Tour players. Leta Lindley, Jill McGill and Kristy McPherson all had 73s and paced the eight LPGA entrants.