South Dakota vs South Dakota State Prediction, Odds & FCS Rivalry Picks (Oct. 31)

• South Dakota vs South Dakota State prediction for a top-10 FCS rivalry game in Brookings
• Live Kalshi South Dakota vs South Dakota State odds on the spread, total and moneyline
• Read below for my best FCS rivalry picks and how to watch on Halloween

The No. 5 South Dakota State Jackrabbits (6-2, 3-1) host the No. 6 South Dakota Coyotes (7-2, 4-1) on Saturday, October 31, at 4 p.m. ET in Brookings. Two FCS playoff contenders meet in the Interstate series with plenty riding on the result.

South Dakota arrives on a four-game winning streak and won the last meeting 24-17. South Dakota State bounced back from a 21-10 loss to North Dakota by beating Murray State 42-9 last time out.

Below, I break down the South Dakota vs South Dakota State odds from Kalshi, what those prices mean for your payout, and where I’m leaning on the spread and total.

South Dakota vs South Dakota State Prediction

South Dakota vs South Dakota State Spread Pick

This is the NO side of Kalshi’s “South Dakota State wins by over 3.5” contract, so it cashes if the Coyotes win outright or lose by three or fewer.

South Dakota has won four straight and beat the Jackrabbits 24-17 in the last meeting. Austyn Modrzewski has thrown 24 touchdown passes and Brayden White has eight touchdown catches, so this offense has shown it can score.

South Dakota State deserves to be favored. The Jackrabbits average 37.1 points and 263.4 rushing yards per game at 6.5 yards per carry, and that ground game will test the Coyotes all afternoon.

But Chase Mason has only been back at quarterback since October 17, completing 54.7% of his passes with five touchdowns and one interception across six games. If South Dakota can force him to throw on key downs, I like the Coyotes to keep this within a field goal or win outright.

South Dakota vs South Dakota State Total Pick

This is the NO side of Kalshi’s Over 53.5 market. I’ll be upfront: South Dakota State scoring 37.1 points per game is a real argument against the Under.

Still, a team running for more than 260 yards a game keeps the clock moving, and every long drive cuts down the number of possessions for both sides.

The Jackrabbits’ passing game is still settling in with Mason, and their last loss was a 21-10 game against North Dakota. The last time these rivals met, they combined for 41 points.

My South Dakota vs South Dakota State total prediction is Under 53.5, with sustained rushing drives leaving fewer opportunities for either offense to pull away.

South Dakota vs South Dakota State Odds

Odds as of October 31, 2026, at 4:33 a.m. ET, from Kalshi buy prices. Compare more college football betting apps.

Kalshi prices work like probabilities. A 48¢ contract on South Dakota +3.5 implies roughly a 48% chance of a cover, and each contract pays $1 if it wins.

A $48 stake returns $100, about $52 in profit before fees, while a 51¢ Under contract turns $51 into $100 before fees.

New users can check our Kalshi promo code page before placing a first trade.

These are buy prices for each side, so the two sides of a market add up to more than $1. The moneyline has South Dakota State at 67¢ and South Dakota at 34¢, which points to a competitive game that leans toward the home side.

If you prefer a sportsbook line, compare the number at BetMGM and theScore Bet.

How to Watch South Dakota vs South Dakota State

• Date: Saturday, October 31, 2026
• Kickoff: 4 p.m. ET
• Location: Dana J. Dykhouse Stadium, Brookings, S.D.
• TV/Stream: ESPNU, ESPN+