Bulawayo, June 28 -- A brilliant 153-run knock by LG Pretorius and a stunning unbeaten century by Corbin Bosch headlined South Africa's dominant performance with the bat as they ended Day 1 of their first Test against Zimbabwe at 418 for 9 at the Queens Sports Club here today. Opting to bat first after winning the toss, South Africa had a shaky start, reduced to 23 for 3 inside 15 overs as Zimbabwe's pacers made early inroads. Wiaan Mulder was left trying to steady the innings at drinks, with just 8 to his name. The visitors crawled to 50 in 21.6 overs and were 90 for 4 at lunch, with LG Pretorius taking charge at 44* and Dewald Brevis contributing 10. Post-lunch, the duo shifted gears. Pretorius brought up his half-century off just 53 ball...