Greyhound Betting Glossary — Dog Racing Terms A to Z

The Language of the Dogs

Every sport has its own vocabulary, and greyhound racing is no different. The racecard, the form guide, and the commentary use terms that are immediately obvious to experienced punters but opaque to newcomers. Knowing what “calculated time” means, what “wide seed” indicates on the racecard, or what a “BAGS meeting” refers to unlocks a layer of understanding that makes form analysis faster and betting decisions sharper.

This glossary covers the terms you’ll encounter most frequently in UK greyhound betting and racing, from the racecard abbreviations to the market terminology used by bookmakers and exchanges.

A to F

Acca / Accumulator. A bet combining two or more selections where all must win for the bet to pay out. Returns compound across each leg.

Ante post. A bet placed on the outright winner of a competition before race day. Standard ante post terms mean no refund if the dog is withdrawn; “non-runner, no bet” terms return the stake in that scenario.

BAGS (Bookmakers’ Afternoon Greyhound Service). The daytime greyhound racing programme, typically running from late morning to early evening at multiple tracks. BAGS meetings are the bread-and-butter of UK greyhound betting, covered by SIS streaming.

Best odds guaranteed (BOG). A bookmaker feature that pays you at the starting price if it’s higher than the odds you took. If you back a dog at 5/1 and it drifts to 7/1 SP, you’re paid at 7/1.

Calculated time (calc). An adjusted race time that estimates what a dog would have run had it not encountered interference or trouble in running. Produced by form analysts, typically Timeform.

Combination forecast / tricast. A forecast or tricast covering all possible orderings of your selected dogs. A combination forecast on two dogs covers both possible first-second orders. A combination tricast on three dogs covers all six permutations.

CSF (Computer Straight Forecast). The official declared dividend for a straight forecast bet, calculated by formula after the race based on starting prices.

Dead heat. When two or more dogs cannot be separated at the finish line. Bets are settled at half the odds (for a two-way dead heat) multiplied by the full stake.

Distance. The length of the race, measured in metres. Common UK distances include 230m, 270m (sprints), 480m (standard), and 640m+ (stayer/marathon).

Each way (E/W). Two bets in one: a bet to win and a bet to place. In greyhound racing, place terms are typically 1/4 odds for the first two finishers.

First bend. The first turn on the track after the traps open. In greyhound racing, the first bend is where most races are shaped — early pace and trap draw are most critical here.

Forecast. A bet predicting the first two finishers. A straight forecast requires the correct order; a reverse forecast covers both possible orderings.

G to O

GBGB (Greyhound Board of Great Britain). The governing body for licensed greyhound racing in Great Britain. Sets rules, licenses tracks and trainers, and oversees welfare standards.

Going. The condition of the track surface. In greyhound racing, going is primarily affected by weather — wet sand is heavier and slower, dry sand is faster. Unlike horse racing, there is no official going description published for greyhound tracks.

Grading. The system by which dogs are classified into ability bands at each track. Grades run from Open class (highest) through A grades (A1 being the highest, descending numerically) to B, C, and D. Dogs are promoted or demoted based on times and results.

Hare. The mechanical lure that the dogs chase around the track. It runs on a rail ahead of the field and is controlled to maintain a consistent distance from the leading dog.

Kennel. The trainer’s facility where racing greyhounds are housed, trained, and prepared. “Kennel form” refers to the collective performance of all dogs from a particular trainer’s operation.

Lay bet. A bet against a selection winning, placed on a betting exchange. The opposite of a back bet. Used in matched betting and trading strategies.

Middle seed (msd). A dog that runs between the inside rail and the outside line. Typically drawn in traps 3 or 4 in graded races.

NRNB (Non-runner, no bet). Ante post terms under which your stake is returned if the selection doesn’t run. Odds under NRNB are shorter than standard ante post prices.

Open race. A race unrestricted by grade. Any dog can enter. Open races feature the highest-quality fields and are typically the most competitive events on the card.

Overround. The bookmaker’s built-in margin. The total implied probability across all outcomes in a race exceeds 100%, and the excess is the overround — typically 115–120% in a six-runner greyhound race.

P to Z

Place. Finishing in the specified top positions. In standard six-runner greyhound races, a place bet covers the first two finishers.

Railer (rls). A dog that naturally runs close to the inside rail. Railers benefit most from inside trap draws (1 and 2) and are disadvantaged by outside draws.

Racecard. The published form guide for a meeting, listing every runner in every race with form data, trap draw, trainer, and other relevant information.

RPGTV (Racing Post Greyhound TV). A dedicated greyhound racing television channel and streaming service, covering selected evening and feature meetings.

Run-home. The final straight section of the race from the last bend to the finishing line. “Run-home split” is the sectional time for this phase.

Sectional time. The time recorded for a specific section of the race — commonly the run to the first bend, the mid-race section, and the finishing split. Sectionals reveal how a dog distributed its effort across the race.

SIS (Satellite Information Services). The broadcasting provider that delivers live coverage of BAGS meetings to bookmakers for streaming and in-shop viewing.

SP (Starting Price). The official odds at the moment the traps open. BOG pays at SP if it’s higher than the price you took.

Straight forecast / tricast. A forecast or tricast requiring the exact finishing order. More difficult than combination versions but costs a single unit stake.

Trap. The numbered starting box from which a dog begins the race. UK greyhound racing uses six traps, numbered 1 (red) to 6 (black/white). Trap colours are: 1 red, 2 blue, 3 white, 4 black, 5 orange, 6 black and white stripes.

Tricast. A bet predicting the first three finishers. A straight tricast requires exact order; a combination tricast covers all possible orderings of the selected dogs.

Wide runner / wide seed (wsd). A dog that naturally races on the outside of the track. Typically drawn in traps 5 or 6 in graded races. Covers more ground but avoids inside congestion.

Speak the Language

Fluency in greyhound terminology isn’t just about understanding the commentary. It’s about reading the racecard efficiently. When you see “rls” next to a dog’s name and know it means railer, you can immediately assess whether the trap draw supports that running style. When the form guide notes a fast “calc” time, you know the dog ran better than its finishing position suggested. Each term is a shortcut to information that takes longer to process without the vocabulary.

Refer back to this glossary as you work through the form. Within a few weeks, the terms will become instinctive — and the racecard will read like a story rather than a spreadsheet.