| Stadium Name: | Richard L. Jantz Stadium |
| Location: | Winfield, Kansas |
| Broke Ground: | 2009 |
| Opened: | 2010 |
| Owner: | Southwestern College |
| Operator: | Southwestern College |
| Surface: | turf |
| Construction Cost: | $4 Million (U.S.) [1] |
| Former Names: | Sonner Stadium |
| Tenants: | Southwestern College Moundbuilders |
| Seating Capacity: | 4,000 |
Richard L. Jantz Stadium (formerly "Sonner Stadium") is a sport stadium in Winfield, Kansas, United States. The facility is primarily used by the Southwestern College Moundbuilders football and track & field teams. The grass field is named "Art Kahler Field" from prominent Southwestern alum Art Kahler and the surrounding track is named "Monypenny Track" in honor of alum William Monypenny.[2]
The facility hosted the Sunflower Bowl during the bowl's entire operation, from 1982 to 1986.[3] The stadium is also used for local high school sporting events and other community events.
In January 2009, the school announced plans for a major renovation, including changing the name from "Sonner Stadium" to "Richard L. Jantz Stadium". The renovations are expected to attract better student-athletes and bigger events to Winfield.[4] The final Southwestern football game was played before the renovations on November 7, 2009, with a victory over Tabor.[5]