I believe we should add a Misc. Tab for the categories of 45 Star, 30/31 Star, etc. Adding such a tab allows for those categories to be more noticed to people who aren't as knowledgeable about SM64 as a speedgame. It will definitely increase the popularity of SM64 as those Misc. categories will provide a breath of fresh air apart from the usual 16 Star or 70 Star that most new runners would gravitate to.
For example, speaking on just 45 and 31 Star alone, they provide a mid-point between the short categories and the longer categories. Having a leaderboard for those categories will attract more runners.
Along with attracting new runners, having leaderboards for those categories in the same place as the main categories will allow for better organization, accuracy, and efficiency.
TL:DR ~ A misc. tab should be added for inclusion, organization, accuracy, efficiency, and appeal to more runners.