Roger Federer beat Alexander Zverev and clinch a record ninth Halle Open title.
The Halle Open, sponsored by Gerry Weber and called the Gerry Weber Open, is a tennis tournament held in Halle, North Rhine-Westphalia, Germany.
Held since 1993, the event is played on four outdoor grass courts and is a part of the ATP World Tour 500 series on the ATP Tour schedule.
The Halle Open, along with Queens (which is held at the same time as Halle), are seen as the two primary warm-up tournaments for the Wimbledon Grand Slam tournament, also on grass courts, which begins towards the end of June.
The event has been upgraded as of 2015 from a 250 series to a 500 series tournament.