Mothiba of Botswana Diamond Valuing Company (BDVC) Boxing Club lost his bout 14-4 while the less experienced Bok was outclassed 26-8.
The two are part of the six-man Botswana team that is trying its luck in the last African Olympic qualifiers in Namibia.
The good news is that Bathusi Mogajane (48kg) and Gomotsang Gaasite (60kg) have advanced to the next stage of the tournament. Mosojane made it after winning his bout 18-13 while Gaasite was favoured by the toss and was awaiting the winner in the bout between boxers from Ghana and Gabon that took place yesterday.