Most heavyweight events allow what we call Whiteboards during the shows. These are easily possible to simply attend Saturday.

If your willing to pack your stuff up overnight you could potentially also attend sunday afternoons. You could potentially leave things there, but if you wont attend the 1st show i wouldnt recommend it.

If it was a championship event you wished to attend, your place of worship may also be able to help you out. In these events missing a show could mean forfeiting, so there are ways in many religions to still observe in absence which may be worth looking into.