Nottingham has one of the more pronounced trap biases of any track running today. Over 44 races in the dataset, trap 3 has won 13 times — a rate of 30.2% from 43 runs. At a six-trap track where you would expect each box to win around 16-17% of the time, that is nearly double the baseline figure.
At the other end is trap 1, which has produced just 3 winners from 42 runs — 7.1%. That is less than half the expected rate. If you are selecting at Nottingham, trap 1 is a box worth treating with genuine caution regardless of the dog's form on paper.
Trap 4 runs at 22.5% and trap 2 at 17.1%, which puts the middle and inner-middle sections of the track in reasonable shape. Traps 5 and 6 are below average at 12.5% and 16.7% respectively.
The average winning time at Nottingham is 28.02 seconds, which is relatively standard for a 500m track. There is nothing exceptional about the pace of racing here — the bias appears to be structural rather than pace-related. The most likely explanation is the bend configuration: trap 3 positions a dog to take the first turn comfortably without being pushed wide, while trap 1 dogs either get crowded against the rail or drift out into traffic depending on the pace of the race.
In practice, this means a dog in trap 3 at Nottingham gets a free hit at the first bend that dogs drawn either side of it do not always enjoy. It is not a guarantee of anything — form still matters enormously — but if you have two dogs of similar quality, the one in the white jacket at Nottingham has a structural head start.