On a day marked by exuberant sunshine and a matching temperature, Philipp Kohlschreiber of Germany and Joao Sousa of Portugal kicked off the Silver Anniversary of the Gerry Weber Open in Halle, Germany. Playing on the, as of yet, unmarred grass of the Stadion Court, with the roof open showcasing cloudless skies, Kohlschreiber won the first six points of the match, but lost the first set, 6-3. Playing like the tournament champion that he was in 2011, he regained control and claimed the next two sets, 6-4, 6-4.

The number twenty-five is significant in a variety of disciplines. As an example, in science, it is the percentage of DNA overlap of a half-sibling and an array of family members, including a grandparent, grandchild, uncle, aunt and so on. The Book of Revelation notes that “the throne was surrounded by twenty-four other thrones.” In the Quran, twenty-five prophets are mentioned. It is the minimum age for election to the US House of Representatives. Pachisi (Hindi for twenty-five) is an India board game, and Twenty-Five is an Irish card game. There are twenty-five players on the roster of a Major League Baseball team, and though a Nippon Professional Baseball team has twenty-eight players, only twenty-five are eligible to participate in each game. Finally, it is not known if the number was lucky for Timothy Leary, but the Father of Psychedelic Drug popularity, was a leading advocate for the use of LSD, which is a portion of the name of the LSD-25 molecule.

To use a colloquialism from Leary’s time, members of the tennis community may have thought that Gerhard (Gerry) Weber, along with his son, Ralf, were “tripping…” when they launched the Gerry Weber Open, in 1993, the week following Roland Garros. (Udo Hardieck, a long-time Gerry Weber associate co-founded the tournament, but since its inception, he has chosen to stay out of the spotlight.)

Staging a Wimbledon warm-up grass court tournament in a small German town called Halle, (and there are two other cities in Germany with the same name) primarily known for its agricultural production, was risky. In the beginning, it appeared to be even more perilous because the ATP calendar dates were the same as the venerated Queen’s Club Championships, which began in 1884 in London. As things have turned out, the bold move by the Webers has proven to be very wise.

Along with my wife, Cheryl Jones, I have regularly been the only tennis journalist from the United States to attend the event over the past twenty-five years. As a result, I have a scrapbook full of Gerry Weber Open memories. One of the most indelible is the weather that washes Europe each June. At this time of year, rain becomes part of every tournament scheduling equation. In 1993, when the inaugural Gerry Weber Open was held, the weather conditions were typical. It was wet…and as those who follow the game realize, there are only some many “It rained again…” stories that can be written.

Being inventive and insightful has made Gerry Weber a clothing manufacturing legend, and very comfortable financially. Using his drive and creativity, along with Ralf’s industriousness, the 1994 tournament was a landmark occasion. A roof that could be closed in 88 seconds had been installed, making the Stadion the first in tennis with a cover. It goes without saying that rain, which continues to plague other venues, is not an issue in Halle.

Adding a closeable roof was a savvy move, but the Webers were even more shrewd when they signed Roger Federer to a lifetime contract. It has been a long-term investment that has been bountiful for all the parties involved. The Swiss icon is the tournament record holder, having won eight singles titles. Adding luster to the count, he was the Halle champion four years in a row (2003-06), and a few weeks later, the Wimbledon winner in each of those years.

Federer has appeared in ten Halle singles finals, which is more than any other player. He is also the only competitor to win both the singles and doubles, which he did with countryman, Yves Allegro in 2005. Not only is Federer a one-of-kind player, he is an extraordinary individual. In 2012, a Halle street was named in his honor. But, more importantly, he is fully aware of the responsibilities that come with the privilege of being Roger Federer.

An example of his understanding the role occurred in 2014. After he and his good friend from Basel, Marco Chiudinelli, received a walk over in their doubles match from Martin Emmrich of Germany and Andreas Seppi of Italy (who became ill), Federer was Federer. Realizing that it was “Ladies Day”, an event the tournament holds annually, and that many attendees were anxious to see him play, he suggested to the Webers that he and Chiudinelli hold an open practice session. It was hardly a surprise that each and every one of the 4,500 seats on Court I were filled for the entertaining exhibition that took place.

When it began, the Gerry Weber Open was an ATP World Series event. In 1998, it became an ATP International Series championship. Eleven years later it moved to the ATP World Tour 250 series level. In 2015, its status changed to an ATP World Tour 500 series tournament. At the same time, its ATP calendar dates changed to the second week following Roland Garros.

Stating the obvious, grass court tennis can only be as good as the grass it’s played on. Thanks to the talents of Phil Thorn, who is Halle’s “Keeper of the Grass”, the four tournament courts are among the best in tennis. (Thorn’s father, Jim Thorn performed his own brand of magic as the Head Groundskeeper at Wimbledon for decades.) Thorn is like a master chef. He has grass recipes that must pass playability tests annually. He is always looking for the perfect combination to guarantee that the outside courts, as well as the Gerry Weber Stadion Court itself, provide a consistent bounce when the first ball is hit to the final shot at the end of the tournament. Last year, after using various combinations of grass previously, he utilized pure rye grass and was pleased with the result.

In addition to the courts, Thorn has additional responsibilities. He and his crew of roughly ten individuals before the tournament begins, (that number swells to forty-five during the competition), maintain the elegant dark green and purple color combinations on the grounds of the facility. Wimbledon’s “look” has a long-standing reputation, but Halle, in its own way, matches it.

Looking back on literally hundreds of past matches, some are unforgettable. Two magical shot-makers and delightful personalities competed in the first Halle final. In that match, Henri Leconte of France routed Andrei Medvedev of Ukraine, 6-2, 6-3. In 1996, Yevgeny Kafelnikov of Russia was a finalist in a surprising loss to Nicklas Kulti of Sweden, who edged him for the title, 6-7, 6-3, 6-4. Kafelnikov became the Gerry Weber Open winner in 1997 and again in ’98. He added a third title in 2002.

Ivo Karlovic of Croatia broke a longstanding ATP record while competing against Tomas Berdych of the Czech Republic in 2015. It was almost incidental that he won the match 7-5, 6-7, 6-3 because he dispatched forty-five aces in the quarterfinal encounter.

Halle always features the best players in the men’s game. During the tournament, they stay at the Gerry Weber Sportspark Hotel, which is like a five-star resort featuring amenities that are not found at other ATP events. Competitors can literally step out of bed, throw some clothing on and enjoy gourmet meals in the hotel’s dining areas, a floor or two away. Even more important, they do not have to spend time in an automobile weaving through traffic to get to the facility. All the players need to do is take a short walk to the practice (some of which are covered) or match courts. While it is often difficult to reach an agreement on many things in tennis, tournament participants feel that the setting is one-of-a-kind.

After a day’s play is complete, attention turns to the “Tennistainment” programs that are featured on a huge stage in the plaza a short distance behind the Stadion Court. The concept is Ralf Weber’s and the entertainment caters to the music and cabaret tastes of the young, old and those in between.

The local community has played a significant role in making the Gerry Weber Open a special tennis experience. Almost everyone from Halle, and the surrounding area do everything they possibly can to support the event each year. Some even take time away from their regular jobs and use portions of their annual vacations to help out. That is why it is categorically a “People’s Tournament.”

Gerry and Ralf Weber, who is the Tournament Director, set out to create a tennis tournament that would be unrivaled. They have succeeded, beyond all expectations. This year’s June 19-June 25 event, with the following seeds: Roger Federer; Dominic Thiem of Austria; Kei Nishikori of Japan; Alexander Zverev of Germany; Gael Monfils of France; Lucas Pouille of France; Roberto Bautista Agut of Spain and Albert Ramos-Vinolas of Spain, will present an unforgettable Silver Anniversary celebration.