After a week off, Bonneau played the Bergen Challenger on carpet, defeating Florin Segărceanu before losing to World No. 88 Patrik Kühnen. The following week however he lost in the first round, of the Helsinki Challenger. In Helsinki however, Bonneau did reach the semi-finals in doubles, partnering Olli Rahnasto. The week after, he played in the main draw of his last tour event for 1987, singles in the Valkenswaard Challenger, and lost in the first round. Bonneau in the last rankings of the year, of December 28, was ranked World No. 171 in singles and No. 315 in doubles.