forced it to be based in Ichihara. Since 2000, training has been held at Footpark Anesaki in Ichihara in normally. Since 1 October 2009, they made new practice place UNITED PARK near the Fukuda Denshi Arena. Mascot JEF United Ichihara's mascot characters are Akita Inu brothers named Jeffy and Unity. The squad number of Jeffy is 2 and that of Unity is 9. They are also joined by a third mascot named Mina, or Mina-chan. Her backstory was that she one day came to Soga Station (the railway station nearest to Fukuda Denshi Arena) and offered to work alongside Jeffy and Unity. Her squad number is 12. Slogan JEF United considers its philosophy to be encapsulated in its tagline "Win By All" since 2001. Affiliated clubs Furukawa Electric Chiba This was JEF's reserve team during the JSL years. They were formed in 1967 and were first promoted to the JSL Second Division in 1975. They still exist, although they are no longer affiliated on paper, and play in the Kanto Regional League. In 2008 they renamed themselves S.A.I. Ichihara and in 2011 they adopted the name Vonds Ichihara. Now separate from Furukawa Electric control, they aim to form its power base in Ichihara as JEF is now based in Chiba city. JEF Reserves JEF's reserve team played until 2011 in the Japan Football League, the third tier of Japanese football. But in 2011, the club announced the end of the B team because of financial problems. JEF United Chiba Ladies Rivalries Marunouchi Gosanke Historically, JEF United's fiercest rivals have been Kashiwa Reysol and Urawa Reds, both close neighbors. The three were co-founders ("Original Eight") of the Japan Soccer League (JSL) in 1965, and spent most seasons in the top tier through the JSL era. Because of their former parent companies' headquarters being all based in Marunouchi, Tokyo, the three clubs were known as the Marunouchi Gosanke (丸の内御三家) and fixtures among them were known as the Marunouchi derbies. Chiba derby JEF United and Reysol first met in 1941 in ancient Kanto regional football league. The two clubs both now based in Chiba Prefecture, and their rivalry is known as the Chiba derby. They annually contest a pre-season friendly match well known as the Chibagin Cup (i.e., Chiba Bank Cup) since 1995. Record as J.League member Key Honours As Furukawa Electric SC (1946–1992), JEF United Ichihara (1992–2004), and JEF United Chiba (2005–present)