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The Cold Line

The Cold Line© 2026 — THE NUMBER BEFORE THE NUMBER.

Sports betting analytics across live odds, stale-line detection, PLATE READ, NextDown, and long-form research for NFL, NBA, MLB, NHL, college sports, soccer, and the 2026 FIFA World Cup market.

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The Cold Line is an independent sports analytics and information service, not affiliated with, endorsed by, or sponsored by the NFL, NBA, MLB, NHL, NCAA, WNBA, MLS, FIFA, or any league, team, or governing body. All team and league names, logos, and marks are the property of their respective owners and are used for identification and editorial purposes only.

The Cold Line
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Betting Terms
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RLM (Reverse Line Movement)

Betting Slang

RLM (Reverse Line Movement)

What RLM (Reverse Line Movement) means in sports betting — explained in plain English.

Definition

When the line moves opposite to where the money appears to be going.

In plain English

70% on Team A but the line moves toward Team B? Sharp money on B!

Related Betting Slang terms

Arb
Backdoor Cover
Bad Beat
Beard
Blowout
Bookie
Buried
Buy the Half

Browse the full A–Z betting glossary or read the complete betting guide. The Cold Line also publishes a free year-round sports calendar and live odds board — no signup required.