MADISON, Wis. (3/12/09)--Madison-based Summit CU has signed a 20-year naming rights agreement with the Sun Prairie, Wis., school board. The $1.287 billion asset credit union donated $99,537 for a baseball field, which will be known as Summit Credit Union Baseball Field (Wisconsin State Journal March 11). The field will be at Sun Prairie's new high school, slated to open in fall 2010. The donation pays for about one-third of the cost of the field's artificial turf on the infield. The Sun Prairie School Board approved the agreement Monday night. It is the first district in Dane County to sell naming rights for a specific school facility, said the article. The article included the price tag for various other facilities at the school-- from $500,000 for naming rights to the school's performing arts center or its field house, to $4,714 for a corner mounted scoreboard.