RIVERTON — The midpoint of the Wyoming high school wrestling season arrives this week with the state’s biggest and most demanding test, as Green River and Rock Springs prepare to compete at the Ron Thon Memorial Wrestling Tournament in Riverton. Often referred to as the de facto best-of-the-best tournament in Wyoming, the Ron Thon brings nearly the entire state under one roof. Both Green River and Rock Springs will send their girls teams to Riverton on Thursday and Friday, while the boys teams will compete Friday and Saturday. For programs in southwest Wyoming, the Ron Thon is widely viewed as a place to gauge where wrestlers stand against elite competition as the postseason approaches. With nearly every top program in attendance, the Ron Thon Memorial offers Green River and Rock Springs a crucial opportunity to test themselves against the state’s deepest field as the season enters its final stretch.