T20

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Treble 20 — T20 — is the most important target on the dartboard. At 60 points, it's the highest single-dart score possible (the bullseye scores 50). Three T20s make a 180, the maximum. The vast majority of professional darts is played with all scoring darts aimed at this tiny wedge at the top of the board. The T20 bed is approximately 8mm wide and about 6mm deep — a tiny target from nearly 8 feet away. Hitting it consistently is what separates professionals from amateurs. A professional might hit T20 about 40-50% of the time they aim at it. A good club player might manage 15-25%. A beginner might hit it 5-10% of the time. That percentage is the single biggest factor in scoring average. Why not treble 19? At 57 points, T19 is the second-highest treble, and some players do switch to it when their T20 accuracy is off. The advantage: the 19 segment sits just below and left of 20, and some players find the angle more comfortable. The disadvantage: you sacrifice 3 points per dart maximum (9 per visit), which adds up over a match. The area around T20 is critical for understanding dart scoring. If you miss T20 to the left, you get single 5 (5 points) or single 12 (12). If you miss to the right, you get single 1 (1 point) or single 18 (18). Missing high or low gives you single 20 (20). This asymmetry explains why 26 (the "breakfast") is such a common score — drifting left or right off T20 drops your score dramatically. The treble 20 is your primary practice target. Building consistency at T20 is the foundation of competitive darts.