Red Splits

Another Racetrack, or Call Bet you might see on some tables (for example on Tom Horn’s European Roulette: Announced Bets, shown below) is the Red Splits Bet.

This bet is not to be confused with a standard Split Bet across two numbers.

Tom Horn’s Announced Bets Roulette

The Red Splits bet involves making a series of Split bets, as the name suggests. It’s not a straight bet on the red, but just a selection, as follows:

Red Splits Bet – place your bets on the four red splits: 9/12, 16/19, 18/21 and 27/30 (See table layout above)

The Best Casino and Variant for Red Splits?

We haven’t seen this on all of the online roulette variants we have seen, but we have seen it on a few of the more complex variants.

We’d play this on Tom Horn’s Announced Bets European Roulette at Monkey Casino.

Black Split bets, Red Split bets- if you are a roulette queen or king, make sure you are wearing your Lucky Red/Black Split Dress or your lucky Red Split pants when you are putting down these bets!

Here’s everything you need to know about the Red Splits bet in European roulette (single-zero).

Quick Facts

Item	Value
What it is	Four split bets on (9–12), (16–19), (18–21), (27–30) (one chip on each split) — a standard “call bet” selection sometimes offered near the racetrack.
Numbers covered on a Euro Wheel	Eight numbers (two per split) → 8/37 pockets.
Table coverage	21.62% (8 ÷ 37).
Probability of a hit (per spin)	21.62% in Euro roulette.
Stake per cycle	4 units (1 per split).
Payout on a hit	Split pays 17:1. Only one split can win at a time.
Net result on a hit	+14 units (win 17 on the winning split, lose 3 on the others). Plus your winning bet back.
Net result on a miss	–4 units.
House edge (per unit staked)	2.70%, same as most standard bets in European roulette.

Main features

• Composition: the four red–red adjacent pairs: 9/12, 16/19, 18/21, 27/30.
• Inside bet profile: pays split odds (17:1) when any covered number hits.
• Coverage vs. volatility: medium coverage (8 numbers) with moderate swing (+14 or –4).

Pros & Cons

Pros

• Simple: easy to place and remember (four fixed splits).
• Bigger hit than dozens/columns: +14 units on a hit feels meaningful while risking only 4.
• Same house edge as other European inside bets (no hidden disadvantage).

Cons

• Low coverage (21.62%): you’ll miss on 78% of spins.
• Med-High variance: longish downswings possible (misses cost the entire 4-unit stake).
• No zero protection: unlike French tables with la partage/en prison on even-money bets, call/inside bets don’t get a refund on 0.

Alternatives

• Black Splits (5 pairs: 8/11, 10/13, 17/20, 26/29, 28/31) covers ten numbers with the same split payout; slightly higher hit rate, different net win per hit (+13 if staking 5 units).
• Six splits anywhere (common tactic): cover 12 numbers with six units at risk; net win per hit is +11. Volatility decreases as coverage rises.
• Dozens/columns: 12 numbers for 1 unit (pays 2:1) — much smoother, but smaller hits; still the same –2.70% edge overall.

Strategy / Action Plan

• For simple, punchy inside action, play 1 unit on each of the four Red Splits. Budget assuming about 1 hit every ~4.6 spins on average and streaks of misses.
• Session bankroll idea: bring 50–75 units minimum for a steady 30–60-spin session (variance buffer).
• Make sure you are on European/French tables (single zero). If available, remember that La Partage/En Prison only softens even-money bets, not Red Splits.