Tuesday 10 March 2020 (presumably): Missouri Primary. Hours 6:00a-7:00p CDT (1100-0000 UTC). Delegate Selection: Winner-Take-Most Primary. Voter Eligibility: Modified Primary.

Primary
Source: Missouri Secretary of State.
Status: Official. Retrieved: Thursday 23 April 2020.
Included in Nationwide vote.

All 54 delegates to the Republican National Convention are allocated to presidential contenders in today's Missouri Presidential Primary.

• If a candidate receives a majority of the statewide vote (more than 50%), the 54 pledged delegates are bound to that candidate.
• If no candidate receives a majority of the vote:
• The candidate with the most votes in each of the state's 8 congressional district receives 3 delegates.
• The candidate with the most votes statewide receives 30 delegates (the 27 at-large and bonus delegates plus the 3 RNC delegates).

Primary (preliminary)
100% Reporting. Estimate as of 11 March 2020 08:51 EST.

Trump, having received 50% of the statewide vote, wins all 54 delegates.

Votes cast for any candidate who dies, releases his or her delegates, withdraws, or becomes inactive prior to the primary will not be counted in the calculation.

National Convention delegates are bound on the first ballot unless that candidate dies, releases his or her delegates, withdraws, or becomes inactive.

Due to the COVID-19 virus, that party has stated that holding of county caucuses on 4 April is unrealistic. County Republican Central Committees will meet by phone instead.

Participation in the caucuses is limited Republicans who are registered to vote in that county.

Saturday 4 April 2020 (presumably): Local Caucuses. Participants elect delegates to the Congressional District Conventions and State Convention. Hours begin at 10:00a CDT (1500 UTC).

Saturday 30 May 2020: Congressional District Conventions. Hours begin at 10:00a CDT (1500 UTC). 24 District Delegates (3 from each of the state's 8 Congressional Districts) to the National Convention are elected according to the results of the primary.

Saturday 20 June 2020: State Convention in St. Charles. Hours begin at 9:00a CDT (1400 UTC). 27 (10 At-Large and 17 Bonus Delegates) to the National Convention are elected along with a National Committeeman and National Committee woman according to the results of the primary.