Former African rally champion Muna Singh has his co-driver Dave Sihoka failed to reclaim their FIA African Rally Championship (ARC) titles after finishing fourth overall in the Toyota Zimbabwe Challenge, the Times of Zambia reported on Tuesday. The three-day Challenge that finished in the Zimbabwean capital Harare on Sunday, was the six and final round of this season's FIA-ARC after the Kobil Rally of Tanzania, KCB Safari Rally of Kenya, KCB Pearl of Africa Uganda Rally and Zambia International Rally, according to Times. The Zambian rally icons were pipped to the continental titles by pre-rally leaders Zimbabweans Jamie Whyte and Phil Archenoul who finished third overall in the three-day rally with 10 finishers from 17 starters and was scooped by teenage compatriot Chase Attwell, Times said. According to Times, the Zambians, in a Subaru Impreza N10, were seven points behind Whyte and Archenoul going into the Toyota Zimbabwe Rally where they needed an outright continental race win. Singh said from Zimbabwe that he lost the chase for the African title when he encountered a series of problems during Sunday's 10 selective stages. 