Obtaining a verdict does not necessarily end the case.  After a decision is rendered, one side or the other may file a Motion various motions attempting to have the decision or verdict set aside or modified or may file an Appeal.

Post-Trial Motions may include, but are not limited to, a:

• Motion for Judgment Notwithstanding the Verdict which argues that there was insufficient evidence on a key issue to have allowed the jury to decide.
• Motion for a New Trial which requests that a new trial be granted on all or part of the issues based on reasons such as misconduct of the jury or prevailing party, newly discovered evidence which the party could not have reasonably discovered, etc . . .  See NRCP and JCRCP 59

Appeals must be filed within 20-30 days after the date that written notice of entry of the judgment is served, depending on whether the case was heard in Justice or District Court.  This process is described further at How to Appeal From A Civil Judgment.