11 CSR 45-20.290
Sports Wagering System Requirements
PURPOSE: This rule establishes standards for sports wagering
systems.
(1) Each Retail or Mobile licensee shall operate a single sports
wagering system through which all sports wagering activity is
conducted and recorded.
(2) Each Retail or Mobile licensee shall provide the commission
remote, read-only, real-time access to the sports wagering
system. That access shall include, at a minimum—
(A) Complete access to all records of wagers, including
canceled, voided, pending, and redeemed wagers;
(B) Ability to query or sort wagering data; and
(C) Ability to export wagering data in a non-proprietary
format.
(3) Sports wagering systems that offer in-game wagers shall be
capable of the following:
(A) The accurate and timely update of odds for in-game
wagers;
(B) The ability to notify the patron of any change in odds
after the placement of a wager is attempted;
(C) The ability for the patron to confirm the wager after
notification of the change in odds; and
(D) The ability to freeze or suspend the offering of wagers,
when necessary.
(4) The commission may develop and implement a central
sports wagering monitoring system for the purpose of
compiling all sports wagering activity data from all Retail and
Mobile licensees. In such event, each Retail or Mobile licensee
shall provide all sports wagering activity data in a format
compatible with the central sports wagering monitoring
system.
(5) All servers used to receive transmissions of requests to
place wagers and that transmit confirmation of acceptance of
wagers on events placed by patrons shall be physically located
in the state of Missouri. Licensees shall provide the commission
with the physical location of such servers. Backup servers may
be located outside of Missouri, but within the United States.
Any data center where a sports wagering system server is
housed must be secure and have access controls in place to
prevent unauthorized access to the sports wagering system
server or other equipment.
(6) Each Retail or Mobile licensee shall maintain modern best
practices to ensure the security and integrity of the sports
wagering system, including but not limited to—
(A) Physical security;
(B) Access control;
(C) Network security;
(D) Resistance to manipulation;
(E) Redundancy;
(F) Error detection;
(G) Data backup and recovery; and
(H) Encryption.
(7) A sports wagering system shall maintain records of all
wagers for a period of not less than five (5) years.
(8) A sports wagering system shall record at a minimum the
following information for each wager:
(A) Description of event or contest;
(B) Unique identifier for the event or contest;
(C) Wager selection;
(D) Type of wager;
(E) Amount of wager;
(F) Odds and amount of potential payout;
(G) Date and time of wager;
(H) Unique identifier for the wager;
(I) Unique identifier of the online sports wagering account or
patron, if applicable;
(J) Internet protocol address and geolocation information, if
the wager is not placed at a retail location;
(K) Unique identifier of the kiosk or point of sale device
through which the wager was placed, if applicable;
(L) The identity of the ticket writer accepting the wager, if
applicable;
(M) Expiration date of the sports wagering ticket;
(N) Date, time, amount, and description of settlement;
(O) Unique identifier of the kiosk or point of sale device
through which the wager was redeemed, if applicable;
(P) Identity of the ticket writer settling the wager, if
applicable;
(Q) Whether a wager was cancelled and the reason; and
(R) Whether a wager was voided and the reason.
(9) The sports wagering system shall be capable of generating
reports necessary to record gross sports wagering revenue,
wagering liability, ticket and voucher redemption, and such
other information relating to sports wagering as deemed
necessary by the commission. Such reports shall distinguish by
type and status where applicable.
(10) A sports wagering system shall perform, at least once
every twenty-four (24) hours, a self-authentication process on
all software used to offer, record, and process wagers to ensure
there have been no unauthorized modifications. In the event
of an authentication failure, the Retail or Mobile licensee shall
immediately notify the commission. The results of all selfauthentication attempts shall be recorded by the system and
maintained for a period of not less than one (1) year.
(11) Each Retail or Mobile licensee shall have internal controls
in place to review the accuracy and timeliness of any data
feeds used to offer or settle wagers. In the event that an
incident or error occurs that results in a loss of communication
with data feeds used to offer or redeem wagers, that error shall
be recorded in a log capturing the date and time of the error,
the nature of the error and a description of its impact on the
system’s performance. That information shall be maintained
for a period of not less than one hundred eighty (180) days.
(12) If a Retail or Mobile licensee becomes aware of a reproducible error in the sports wagering system that relates to network
security, data security, accurate placement of wagers, recording of wagers, or redemption of wagers, or otherwise calls
into question the security and integrity of the sports wagering
system, the licensee shall notify the commission immediately.
The notification shall include—
(A) A description of the error;
(B) Risks created or imposed by the error; and
(C) Efforts being taken by the Retail or Mobile licensee to
prevent any impact to the security and integrity of the sports
wagering system.
(13) If an active sports wagering system ever fails, crashes,
or becomes inoperable for any reason, the Retail or Mobile
licensee shall notify the commission no later than the end of
the following calendar day.
AUTHORITY: section 39(g) of Article III, Mo. Const., section 313.004,
RSMo 2016, and sections 313.800–313.850, RSMo 2016 and Supp.
2025.* Original rule filed May 14, 2025, effective Nov. 30, 2025.
*Original authority: 313.004, RSMo 1993, amended 1994, 2014, and 313.800-313.850,
see Revised Statutes of Missouri, 2016 and Supp. 2025.