Said arriving early to train for the altitude and building match confidence round by round is key

Altmaier

Said cold conditions made balls very slow and rallies long, compared to a faster Monte Carlo the week before

Marozsan

Said hot weather makes the clay fly fast while cold, heavy conditions kill pace, calling weather the biggest factor

Shelton

Said the altitude makes the normally heavy German clay fly faster, calling fast clay his favorite surface

Struff

Said rain slowed the court in the first set before sun brought it back to life later in the match

Draper

Said he likes playing at altitude and arrived early to prepare

Thiem

Said the altitude suits his game and serves as good preparation for Madrid

Fritz

Said he feels comfortable in Munich but performs better in warmer temperatures

Zverev

Said the altitude makes the ball fly further but cool, humid weather partly offsets that speed

Heliovaara