Heres from the rule book. It cites rule 107a "NOTE: Once a player records scores, whether prebowled, post bowled or at the regularly
scheduled time, the player’s eligibility for that series has been exhausted. The posted scores
must be utilized in figuring team and individual standings, unless declared null and void by
the league’s board of directors."

See CAQ's page 117

121. We had an individual/team prebowl for the December 15th league session because they had to
work. Just prior to the date they prebowled for, they found out that they would not have to work
on that date so they appeared at the lanes to bowl. Can the league secretary throw out their
scores and allow them to bowl? No. When an individual or team receives permission from the league to bowl
unopposed and completes their prebowl, Rule 107a provides that they have exhausted their eligibility with regard
to recording their scores for that league session. The league’s board of directors has the authority to declare the
prebowled scores null and void only if a rule was violated or due to mitigating circumstances. However, the change
in the individual’s work schedule does not fall into either of these categories, therefore, the scores would stand.