Kalshi Parlay Builder: Fair Odds On Every Combo

Prices as of Monday, September 28, 2026, 1:01 p.m. CT. Kalshi prices, before fees. The sims behind the builder refresh before kickoff.

Yes, Kalshi takes parlays. They are called combos, each one is priced on its own, and as of Monday, September 28, 2026, the only question that matters is whether the price you are offered is fair. That is what this page answers. Pick a final score, tilt the play calling, choose how many legs and what markets, and the builder returns combos with two numbers on each: what the legs pay together at the price on Kalshi, and what 10,000 Stokastic Sims say the combo is worth.

Combo 5 below prices at 11.6¢ in the sims against 6¢ for the legs alone. That gap is what the builder finds, and it is why a combo is worth more than its parts when the legs move together.

The Game Lines

Eagles to win 65¢, Bears 36¢. The market has Philadelphia by 3.6 with a total of 41.9, and the sims land close: a median margin of Eagles by 3 and a median total of 42. Over 41.5 is 52¢ on Kalshi against 50% in the sims, and Over 42.5 is 48¢ against 49%. The builder starts from those numbers, so the disagreement to watch is on the Bears side: the sims give Chicago 42% to win against a 36¢ price, which is why so many of the combos below lean on Chicago hanging around rather than Philadelphia running away.

How To Read A Combo

Every leg is a real Kalshi contract. The sims played this game 10,000 times, play by play, so a leg's chance is the share of games it hits in and a combo's chance is the share where every leg hits. The sims carry the correlation. Legs that rise and fall together are worth more as a combo than multiplied one by one, and the builder shows you both numbers. When the sims price is above the price on Kalshi, the combo is worth a look. When it is below, pass, no matter how good the story sounds.

Six Combos At The Sims' Score

The builder opens at the sims' median score for each team, Eagles 22, Bears 20, three legs, high correlation. These are the six it returns there, with the sims price first and the legs-alone price second.

Combo 1. Bears do not win by 4 or more, Saquon Barkley 60+ rushing yards, Kyle Monangai does not score. Sims 38.6¢, legs alone 35¢. A Philadelphia lead that never gets away, carried by the run.

Combo 2. Bears do not win by 4 or more, under 47.5 total points, D'Andre Swift under 70 rushing yards. Sims 36.7¢, legs alone 31¢. The low, slow version of the same game.

Combo 3. Eagles win, under 46.5 total points, Swift under 70 rushing yards. Sims 30.7¢, legs alone 26¢. The straight read on a third-string quarterback at home.

Combo 4. Eagles win, Monangai under 30 rushing yards, under 43.5 total points. Sims 17.6¢, legs alone 13¢. The same read with the total pushed down a rung.

Combo 5. Jalen Hurts 2+ passing touchdowns, DeVonta Smith scores, Cole Kmet 10+ receiving yards. Sims 11.6¢, legs alone 6¢. The one long shot the sims like: the passing game does the scoring and Chicago's tight end gets his catches chasing.

Combo 6. Bears do not win by 3 or more, Case Keenum throws a touchdown pass, Rome Odunze scores. Sims 8.6¢, legs alone 7¢. Chicago hangs around through the air.

Change the score and every one of these moves. That is the point of the builder over a fixed list: your read of the game is the input, and the price follows it.

What Moves The Price From Here

Caleb Williams is out and Case Keenum starts, which is already in the price. The two things that move it before kickoff are the inactives at 6:45 p.m. ET, where a scratch at receiver on either side reprices every passing leg, and the weather at Soldier Field, which drags the total and pushes the run-heavy combos up. The sims behind the builder refresh before kickoff, so open it again after inactives and the six combos will not be the same six.

Where This Goes

Tonight it is one game. Every NFL game gets its own file each week, and the same builder prices an NBA night or a hockey slate the day those markets list. The standing address for it is this page. The builder also runs on its own at this link if the block above does not load.

Hero illustration: the Kalshi Parlay Builder, Eagles at Bears, Stokastic.