William Porterfield's fine century kept Warwickshire in contention for a One-Day Cup quarter-final place as they beat Sussex by four wickets at Rugby.
Chasing 218, the Irishman hit exactly 100 and shared a crucial stand of 81 with Ateeq Javid (42 not out) as the hosts reached 218-6.
Earlier, Sussex were bowled out for 217 as Australian George Bailey made 59.
Warwickshire play Kent on Wednesday at Edgbaston with victory likely to seal a last-eight spot.
Chasing 218, the Irishman hit exactly 100 and shared a crucial stand of 81 with Ateeq Javid (42 not out) as the hosts reached 218-6.
Earlier, Sussex were bowled out for 217 as Australian George Bailey made 59.
Warwickshire play Kent on Wednesday at Edgbaston with victory likely to seal a last-eight spot.