Het staat er inderdaad niet expliciet bij, denk dat court change wel kan als beide spelers akkoord gaan.
D.Lighting
1) Minimum Number of Lighted Courts – Outdoor events
a) ATP Tour Masters 1000. Center Court, two (2) other show courts plus one (1)
practice court.
b) ATP Tour 500. Center Court plus one (1) other show court.
c) ATP Tour 250. No minimum requirement.
2) Intensity
a) ATP Tour Tournaments. Lighting must be evenly distributed on the court
with a minimum recommended intensity of 100 foot-candles (1076 LUX), averaged over 15 readings on court.
The recommended minimum lighting for televised events broadcasting in
high definition is an average of 185 foot candles (approximately 2,000 lux).
The light should be distributed across the court evenly with a consistent color
temperature.
b) ATP Challenger Tour Tournaments. Lighting must be evenly distributed on
the court with a minimum recommended intensity of 70 foot-candles (750
LUX), averaged over 15 readings on court.
3) High/low ratio. A ratio of the highest to lowest readings should be no greater than
1x2.0 but the recommended ratio is 1x1.5.
4) Light poles. Light poles should be positioned so that they are evenly distributed
around the court and it is recommended that light pole heights for other than show
courts be no lower than forty (40) feet (12.19 m.) or no lower than other non-show
court lights at the facility, e.g., if others are sixty (60) feet (18.29 m.), then new
lights should be sixty (60) feet (18.29 m.) high.
5) The Supervisor has the authority to suspend play on any court if the intensity of
illumination, in his judgment, is insufficient for professional tennis.