Sholom (Eric) Simon is one of the longest-standing contributors to the sport of Ultimate, having served in a wide variety of roles in the UPA and Washington Area Frisbee Club from the 1970s through today. Due to his tenure as a Regional Coordinator and/or Board Member of the UPA, from 1982 to 1998, Sholom was the unofficial depository of "institutional memory" for the UPA over a nearly two-decade span, ensuring consistency and efficiency in decision-making. His contributions include the College Top 25 (which he has computed weekly for 23 years, and continues to do so), and refinement of college eligibility rules, significant involvement in the Seventh, Eighth, Ninth, and Tenth Editions of the UPA Ultimate Rules, the development and revision of regional boundaries in the US, and numerous tournament organizational innovations that are now standard practice. Sholom has also authored a variety of instructional and organization manuals that are still in circulation.