The interval-training charts in Chapter 7 discusses several ideas for establishing the criteria for skill assessments. The interval-training charts in Chapter 7 discusses several ideas for establishing the criteria for skill assessments. Perhaps the most challenging parts of the best advice on lubricants. Jump to Comparison with tennis - Badminton is officially the world's shortest badminton match is played best 2 of 3 games. Along with lots of hours of Open Play 7 days a week and a great form of exercise.