field to another, or from one part of the world to another. On the Indian subcontinent, for instance, pitches tend to be dry, dusty, rough and soft which tends to wear down the ball more. These pitches offer less assistance to fast bowlers because the ball tends to bounce slower and lower, where most fast bowlers rely on bounce and speed to defeat the batsman. On the other hand, spin bowlers prefer this surface because it gives greater traction to the ball and will result in the ball breaking or turning more when it hits the surface. When such a delivery is bowled, the ball is said to have "turned". Conversely, pitches in places such as Australia, England, South Africa and the West Indies tend to be hard, true surfaces, called "batting wickets" or "roads" because the ball bounces uniformly and thus batsman find it easier to score runs, although these wickets suit fast bowlers more than spinners. Accordingly, teams are generally much harder to beat in their own country, where both their batsmen and bowlers are presumably suited to the types of pitches encountered there. On any given pitch, however, conditions will become more suitable for spinners as time progresses as the pitch becomes softer and worn through use, making the spin bowler something of a cricketing "closer". The pitch can be cleaned of debris and rolled between innings, and should be mowed before each day's play at the discretion of the umpires. But the pitch cannot be watered once the match has started (unless it rains which can happen at a time when nobody can cover the pitch). Its characteristics can therefore change during the game, and can be a major factor in deciding whether to bat or field first. Baseball parks are also not completely uniform, however many of the variations in playing conditions in baseball also arise in cricket. Stadiums with retractable roofs, for example, usually play differently with and without the roof. For example, with the roof open the wind will affect how far the ball carries. Against a running team the basepaths may be heavily watered. Many stadiums have idiosyncratic features – for example, the short right field and high left field wall (called the Green Monster) at Fenway Park, the former hill and flagpole in the outfield (Tal's Hill) at Minute Maid Park, or numerous "porches" (parts of the grandstands hanging over the