Missouri Slots Return-To-Player, 2020 Thru 2022

Introduction to Missouri Slots Return-To-Player

A big concern for slots enthusiasts is if casinos are trying to “get back their lost gaming revenue” by reducing their return-to-player (RTP). But is that true, state-by-state? Let’s look closely at Missouri Slots Return-To-Player for their casinos.

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Missouri Gaming Industry: An Overview

Mississippi has thirteen riverboat casinos across the state.

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The Missouri Gaming Commission is responsible for establishing state gaming regulations for riverboat casinos, fantasy sports, bingo, and charitable games.

The state of Missouri withholds 4% of winnings on $1,200 or more jackpots or cash prizes. Filing a tax return with Missouri can potentially return some of this withheld state income tax.

Missouri Return Statistics for Slots

Missouri state law has set a minimum theoretical payout limit of 80% on gambling devices. Return statistics are combined from all electronic games including video poker, video keno, and slot machines.

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Monthly reports are under the gaming control board’s I Want To… section View Slot Payout Percentages by Location. This monthly report provides return statistics by casino and slot machine denomination.

Missouri’s thirteen commercial, riverboat casinos are:

1. Ameristar Casino Hotel Kansas City
2. Ameristar Casino Resort Spa St. Charles, 23 miles northwest of St. Louis.
3. Argosy Casino Hotel & Spa in Riverside, 7 miles northwest of Kansas City.
4. Bally’s Kansas City
5. Century Casino Cape Girardeau, 116 miles southeast of St. Louis.
6. Century Casino Caruthersville, 98 miles north of Memphis, Tennessee.
7. Harrah’s Kansas City in North Kansas City, 7 miles northeast of downtown Kansas City.
8. Hollywood Casino St. Louis
9. Horseshoe St. Louis
10. Isle of Capri Casino Hotel Boonville, 103 miles east of Kansas City.
11. Mark Twain Casino in La Grange, 145 miles northwest of St. Louis.
12. River City Casino & Hotel in St. Louis.
13. St. Jo Frontier Casino in St. Joseph, 55 miles north of Kansas City.

Monthly Player Win Percentages

The return statistics for Missouri’s riverboat casinos go back to June 2017. I’ve plotted below the monthly player win percentages from Missouri’s riverboat casinos from 2020.

For most of these three years, Bally’s Kansas City, St. Jo Frontier, and Mark Twain battled for the lowest player win percentages with the notable exception of Mark Twain casino dramatically improving its odds in May 2021.

Over a similar time, the highest player win% went to Ameristar St. Charles, Hollywood, and River City with another notable exception of Harrah’s Kansas City jumping to the highest return in September 2022 from around fifth place.

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Summaries can help improve our understanding of longer-term trends, so let’s graph the state-wide total return-to-player only.

Except in the month before and after the pandemic, notice how steadiness of the overall performance of all Missouri casinos combined.

Summary of Missouri Slots Return-To-Player

Missouri’s thirteen riverboat casinos carefully manage their player win percentage. Because returns are reported to the state of Missouri, savvy slots enthusiasts can choose between state regions for a better return-to-player than the next.

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