| Stephen Poteet | Worthington | OH | Approved | 26035 | Grade 5 Senior (18 and over) | | | | | | | |
| Lillian Prince | Gilberts | IL | Approved | 20176 | Grade 3 | Grade 4 | | | | | | |
| Taylor Pulido | Hamlet | IN | Approved | 20839 | Grade 4 Junior (under 18) | Grade 4 | | | | | | |
| Orriana Redweik | Knox | IN | Approved | 26112 | Practice Chanter Novice (all ages) | | | | | | | |
| Sebastiao Ribeiro | Edmond | Oklahoma | Approved | 25012 | Grade 2 | Grade 3 | | | | | | |
| Sabrina Richert | New Haven | IN | Approved | 26020 | Grade 4 Senior (18 and over) | Grade 4 | | | | | | |
| Aidan Rito | Bingham Farms | MI | Approved | 20297 | Grade 3 | Grade 3 | | | | | | |
| Ian Rito | Bingham Farms | MI | Approved | 25007 | | | Grade 4 | | | | | |
| Colby Robbins | Cedar Park | TX | Approved | 26109 | | | Grade 4 | | | | | |
| Lucas Robinson | Oakwood | OH | Approved | 26051 | Grade 3 | Grade 3 | | | | | | |
| John Rusfeldt | Kenosha | WI | Approved | 26064 | | | Grade 5 | | | | | |
| Garrett Russell | Benton | AR | Approved | 20344 | Grade 5 Senior (18 and over) | | Grade 3 | Novice | Novice | | | |
| Colleen Ryan | Newark | Ohio | Approved | 20848 | Grade 3 | Grade 3 | | | | | | |
| Michael Samson | Pemberville | Ohio | Approved | 26063 | Grade 4 Senior (18 and over) | Grade 4 | | | | | | |
| Paul Savereide | Eden Prairie | MN | Approved | 20911 | Grade 4 Senior (18 and over) | Grade 4 | | | | | | |
| Leslie Schier | Grinnell | IA | Approved | 26107 | Grade 3 | | | | | | | |
| Adam Schiller | Shakopee | Minnesota | Approved | 26071 | Grade 4 Senior (18 and over) | Grade 4 | Grade 4 | Novice | Novice | | | |
| Imogen Schmotz | Woodridge | IL | Approved | 20100 | Grade 4 Senior (18 and over) | (none) | | | | | | |
| Caitlin Schneider | Cincinnati | OH | Approved | 25016 | Grade 4 Senior (18 and over) | Grade 4 | | | | | | |
| Nolan Schoenle | Bloomington | Illinois | Approved | 20258 | Grade 3 | | | | | | | |
| Todd Schroeder | OTTAWA | OH | Approved | 20841 | Grade 4 Senior (18 and over) | Grade 4 | | | | | | |
| Shaun Schuetz | Lancaster | Ohio | Approved | 26033 | | | Grade 2 | | | | | |
| Geoffrey Scigliano | Hernando | MS | Approved | 20870 | Grade 4 Senior (18 and over) | Grade 4 | | | | | | |
| William Scigliano | Hernando | MS | Approved | 20871 | | | Grade 4 | | | | | |
| Elijiah Shepherd | Lorain | OHIO | Approved | 26132 | Grade 4 Senior (18 and over) | | | | | | | |
| Oliver Sherman | South St Paul | MN | Approved | 26130 | | | Grade 4 | | | | | |
| Kim Sievewright | Saint Francis | WI | Approved | 20298 | | | Grade 5 | Intermediate | | | | |
| JASON SILVEY | Royal Oak | MI | Approved | 20897 | Grade 4 Senior (18 and over) | Grade 4 | | | | | | |
| Jim Sim | Peotone | IL | Approved | 20158 | | | | | | | Register as an Adjudicator | |
| Cameron Sinibaldi | Elma | NY | Approved | 26069 | | | Grade 1 | | | | | |
