BZ UMa relatively rare outburst The SU UMa-candidate BZ UMa is undergoing a relatively rare outburst, as reported by Pavol A. Dubovsky (vsnet-outburst 2126) at mv=10.8 on May 1.8681 and by Maciej Reszelski (vsnet-alert 5857) at mv=10.8 on May 1.891. The last outburst of BZ UMa occurred in 2000 May (normal outburst). None of previously observed outbursts of BZ UMa showed clear characteristics of a superoutburst, which is atypical for a dwarf nova below the period gap. Further follow-up observations, particularly time-resolved photometry, are encouraged during the present outburst. Regards, Taichi Kato VSNET Collaboration team