Sunderland is one of the most trap-biased tracks in the British calendar, and 61 races of data makes that verdict hard to argue with. Trap 2 wins 37% of races from 54 runs — more than three times the national average for that draw and a figure that stands out even among tracks with known biases. This is not a quirk. It is a pattern.
The opposite story belongs to trap 4, which wins just 7% from 57 runs. That is a sample large enough to say with confidence that trap 4 at Sunderland is a position that actively works against dogs rather than just failing to help them. In practice, a dog in trap 4 needs to be significantly better than the field to overcome the positional disadvantage — and at a track where inside-middle is this dominant, that margin needs to be large.
Why does trap 2 dominate so consistently? The most likely explanation is geometry. The inside-middle draw at Sunderland appears to provide the ideal combination of a clear run to the first bend without the squeeze that sometimes affects trap 1 from the very inside rail. Dogs in trap 2 are getting the best of both worlds: a short route to the first corner with space to run. Trap 1 at 12% and trap 5 at 14.3% are relatively average, which reinforces the idea that it is specifically the trap 2 position that benefits most from the circuit layout.
The track's average winning time of 25.05 seconds gives a sense of how fast the circuit runs. Quick-breaking dogs who can take up the inside-middle berth and hold it through the first bend appear to be the profile that Sunderland rewards most consistently.
For anyone following tonight's Sunderland card, the draw should be the first consideration before anything else.