Graded vs Open Races in Greyhound Racing — How the System Works

Graded and open races represent two fundamentally different approaches to assembling a greyhound race, and understanding the distinction is essential for anyone reading results or studying form. The GBGB operates a grading system that places every racing dog on a scale according to its proven ability, and the vast majority of races run in the UK are graded — meaning the six dogs in the field are matched to be roughly competitive with each other. Open races sit outside that framework, inviting the best dogs regardless of grade, and producing contests where class gaps can be wide and the racing quality is measurably higher.

The grading system is the mechanism that makes daily racing viable. Without it, every race would risk featuring one class act alongside five no-hopers, and the betting market would collapse into a series of short-priced certainties and hopeless outsiders. Grading ensures that a dog running in an A6 race is competing against other A6 dogs, which keeps the racing competitive and the form book readable. Climbing the grades from A8 to A1 is the mark of a dog that is improving. Dropping from A3 to A6 usually signals decline.

This guide explains how the grading scale works, what happens in open races, and where the special categories — puppies, veterans, hurdles — fit into the picture.

The GBGB Grading Scale — A1 Through A11

The GBGB grading system ranks dogs on a scale from A1 (the highest graded level) down to A11 (the lowest). All 18 licensed stadiums in the UK use the same system, which provides a consistent framework across the entire circuit. A dog graded A3 at Romford is racing at the same nominal standard as an A3 dog at Sheffield or Nottingham, although track-specific factors mean that raw times are not directly comparable between venues.

A dog’s grade is determined by its recent performance. When a dog wins a race, its grade typically moves up by one level — an A5 winner is reclassified as A4 for its next outing. When a dog finishes lower in the field consistently, its grade drops, placing it in a field of slightly weaker opponents where it has a better chance of being competitive. The grading secretary at each track manages these adjustments, aiming to keep every race as tightly matched as possible.

The practical effect is a self-correcting system. A dog that is too good for its current grade wins, moves up, and faces stiffer competition. A dog that is outclassed drops down until it finds its level. Over the course of several races, most dogs settle into a narrow grade band — typically two or three levels — where they are competitive without being dominant. This equilibrium is what makes graded racing genuinely interesting to bet on: the fields are balanced, the margins are tight, and the form book is a reliable guide to relative ability within each grade.

The grade also affects how you read results. A dog that finishes third in an A2 race has performed at a higher level than one that wins an A7. When a dog drops several grades between runs, the form figures from its higher-graded races carry more weight than the numbers alone suggest — a second-place finish in an A3 may tell you more about the dog’s ability than a win in an A6 after the grade drop. GBGB’s chief executive Mark Bird has noted: “The initiatives we have introduced in recent years are now embedded and are helping to consolidate the significant progress we have made since 2018 across all measures” (GBGB, 2026). The grading system is a central part of that data transparency: every dog’s grade history is published, trackable, and available to anyone who wants to study it.

Open Races — When the Best Meet

Open races dispense with the grading system entirely. Any dog can enter, regardless of grade, and the result is a contest where the best runners compete directly against each other. If graded racing is the regular league season, open racing is the cup competition — fewer restrictions, higher stakes, and the possibility of a genuine mismatch alongside a genuine classic.

The most prestigious open race in UK greyhound racing is the English Greyhound Derby, which carries a winner’s prize of £175,000 and represents the pinnacle of the sport. The Derby draws the fastest dogs from the best trainers, with heats and semi-finals staged across several weeks to produce a six-dog final that is the most anticipated race of the year. Below the Derby sit other national open competitions — the Oaks, the St Leger, the Grand National — each with its own history and prize fund, though none match the Derby’s purse or profile.

At the stadium level, individual tracks host their own open races throughout the year. These local open events attract dogs from the top grading tiers — A1 and A2 — along with ungraded dogs that have been specifically entered for the competition. The prize money is smaller than the national events, but the racing quality is noticeably higher than the standard graded card. For bettors, open races require a different analytical approach: you are comparing dogs that may have raced at different tracks, over different distances, and against different opponents. The form book is still the primary tool, but it needs reading with broader context — a dog’s performance at one track may not translate directly to another.

One key difference between graded and open racing is the role of class. In a graded race, the six runners are of similar ability by design, and the winner is typically decided by form, fitness, and the trap draw. In an open race, class separates the field. A dog that has reached the semi-finals of a national competition carries a level of proven ability that no graded record can match, and when that dog appears in a local open event at a BAGS track, it is often the clear class act in the field.

Puppy Races, Veterans, and Other Categories

Beyond the standard grading scale and open races, UK greyhound racing includes several special categories that appear on evening and afternoon cards with varying frequency.

Puppy races are restricted to dogs under a specified age — typically two years old — and serve as the sport’s development league. These races are often the most unpredictable on the card, because the runners have limited racing history and their form is still developing. A puppy that wins its first three races may be a future A1 performer or may simply have been fortunate with its early draw and opposition. The form figures from puppy races carry less predictive weight than established adult form, but they provide the first clues about a dog’s temperament, pace, and racing style.

Veteran races cater to older dogs, typically those aged four or above, who may have slowed from their peak grading level but still enjoy competitive racing against their contemporaries. These races often produce close finishes, because the dogs know their way around the track and tend to be tactically experienced even if they have lost a step of pace. For bettors, veteran form is surprisingly reliable: older dogs are consistent in their running style, and their track preferences are well established through years of racing history.

Maiden races are restricted to dogs that have not yet won a race. These appear less frequently than graded or open events, but they serve a purpose in the programme: they give inexperienced runners a chance to compete without facing proven winners. A maiden race can produce big-priced surprises, because the dogs in the field have no winning form to anchor their market prices, and the betting is often based on trial times and trainer reputation rather than competitive results.

Hurdle races — where dogs jump low obstacles during the race — are a rarity in modern UK greyhound racing, offered at only a handful of tracks. They add variety to the card and attract a specific type of dog: one with the athleticism to clear the hurdles without losing stride. The form from hurdle races is its own category and does not transfer directly to flat racing, or vice versa. These categories collectively round out the evening programme, ensuring that the card offers more than just the standard graded fare — and giving bettors who study the full range of race types an occasional edge over those who only focus on the A-grade numbers.