Inside Bets in Roulette: Straight, Split, Street, Corner, Six Line
Inside bets are the wagers placed on the numbered grid itself — from a single number paying 35:1 down to a six-number block paying 5:1. They are roulette's high-variance menu, and the key fact most players miss is that every one of them carries exactly the same 2.70% house edge on a single-zero wheel. This guide defines each inside bet, gives the real probabilities, and shows what combining them does and does not change.
Place an inside bet →The five inside bets, defined
Straight up: a chip on a single number, including zero. Pays 35:1; hits with probability 1/37, about 2.70%, on a single-zero wheel. Split: a chip on the line between two adjacent numbers, such as 17-20. Pays 17:1; hits 2/37, about 5.41%. Street: a chip at the end of a row of three numbers, such as 13-14-15. Pays 11:1; hits 3/37, about 8.11%. Corner (also called a square): a chip on the intersection of four numbers, such as 25-26-28-29. Pays 8:1; hits 4/37, about 10.81%. Six line (also called a double street): a chip spanning two adjacent rows, six numbers in all. Pays 5:1; hits 6/37, about 16.22%. All five live inside the numbered grid, which is exactly why they are called inside bets.
One edge to rule them all: why every inside bet costs 2.70%
The payouts are not arbitrary — they are built as if the wheel had 36 pockets, when a single-zero wheel actually has 37. A straight-up bet pays 35:1 against true odds of 36:1; a corner pays 8:1 against true odds of 8.25:1. Run the expected value on any of them and you get the same answer: on a straight up, (1/37 x 35) - (36/37 x 1) = -1/37, a loss of about 2.70% of stake. On a six line, (6/37 x 5) - (31/37 x 1) = -1/37 again. Payout scales exactly with coverage, so no inside bet is better value than another. On an American double-zero wheel the same structure over 38 pockets pushes the edge to 5.26% on every one of these bets, which is why the single-zero table is always the right room to be in.
The variance ladder, from six line to straight up
If the edge is identical, what are you actually choosing when you pick an inside bet? Variance. A six line wins roughly one spin in six, so bankroll swings are comparatively tame; a straight up wins about once in 37 spins, so you should expect long droughts punctuated by 35:1 spikes. Between them sit the corner (about one in nine), the street (about one in twelve) and the split (about one in eighteen). Climbing the ladder toward the straight up does not change what the bet costs on average — it changes how bumpy the ride is and how large a bankroll you need to survive the dry spells. Players who want a shot at a big multiple accept the drought; players who want longer sessions per SUI stay low on the ladder or move to outside bets entirely.
Combining inside bets: what changes and what does not
Stacking inside bets is how most real roulette is played — a straight up on 17, splits around it, a corner for cover. Combining bets reshapes your outcome distribution: more of the wheel covered means you win something more often, and overlapping numbers create jackpot pockets where several bets pay at once. What combining can never do is touch the math. Each chip independently loses 2.70% of its stake in expectation, so ten chips spread across the grid lose exactly the same percentage as ten chips on one number. The classic complete-bet on a number (straight, all splits, streets, corners around it) is a variance sculpture, not an edge play. Combine bets to shape the session you want — never because a layout pattern is supposed to beat the wheel.
Worked examples in SUI
Say you bet 1 SUI straight up on 17 (Llamabet's minimum bet is 1 SUI). If it hits, you receive 35 SUI in winnings plus your 1 SUI stake back — 36 SUI to your wallet, settled on-chain in about a second. Expected cost of the spin: about 0.027 SUI. Now spread 6 SUI as a six line on 13-18: a hit pays 30 SUI plus your 6 back, and the expected cost is about 0.162 SUI — the same 2.70% of total stake. A mixed layout of 1 SUI on the 17 straight, 1 SUI on the 16-17 split and 1 SUI on the 16-17-19-20 corner turns a spin of 17 into 35 + 17 + 8 = 60 SUI in winnings on 3 SUI staked, while any miss of all three loses the full 3 SUI. Same edge in every case; radically different shapes.
Inside versus outside: a variance choice, not a value choice
Outside bets — red or black, dozens, columns — cover 12 to 18 numbers and pay 1:1 or 2:1, and on a single-zero wheel they carry the same 2.70% edge as everything inside the grid. So the inside-versus-outside question is not about which bet is smarter; it is about which distribution of outcomes you enjoy. Because every Llamabet spin is provably fair — the server-seed hash is committed on Sui before you bet and revealed after, so you can verify the number yourself — the only variables genuinely under your control are stake size and variance. Choose both deliberately, bet only what you are comfortable losing, and let the 35:1 moments be a bonus rather than a plan.
Frequently asked questions
What are the inside bets in roulette and what do they pay?
The inside bets are straight up (one number, 35:1), split (two numbers, 17:1), street (three numbers, 11:1), corner (four numbers, 8:1) and six line (six numbers, 5:1). On a single-zero wheel their hit probabilities are 1/37, 2/37, 3/37, 4/37 and 6/37 respectively.
Which inside bet has the best odds in roulette?
None — they are all identical in expectation. Every inside bet on a single-zero wheel carries a 2.70% house edge because payouts scale exactly with numbers covered. The real difference is variance: a six line hits about one spin in six, a straight up about one in 37.
Does combining inside bets improve my chances?
It changes the shape of outcomes, not the value. More coverage means more frequent wins and overlaps create bigger single-number payouts, but each chip still loses 2.70% of its stake in expectation, so no combination reduces the house edge.