| 11th Leroy Holden Classic | Huntersville, NC | Nov 28 - 29 |
| 2025-26 IHSAA Class 1A Boys Basketball State Tournament | Various Cities, IN | Jan 1 |
| 2025-26 IHSAA Class 2A Boys Basketball State Tournament | Various Cities, IN | Jan 1 |
| 2025-26 IHSAA Class 3A Boys Basketball State Tournament | Various Cities, IN | Jan 1 |
| 2025-26 IHSAA Class 4A Boys Basketball State Tournament | Various Cities, IN | Jan 1 |
| 2025 Boys Lakota Nation Invitational Basketball Tourney | Rapid City, SD | Dec 18 - 20 |
| 2025 Junior Orange Bowl Boys' Basketball Classic | Miami, FL | Dec 27 - 30 |
| 2026 281 Conference Boys Tournament | Various Cities, SD | Jan 16 - 22 |
| 2026 37th Annual Dakota Oyate Challenge | Mitchell, SD | Feb 5 - 7 |
| 2026 AHSAA Boys Basketball State Tournament (Arkansas) | Various Cities, AR | Jan 1 |
| 2026 AHSAA Boys State Basketball Tournament (Alabama) | Various Cities, AL | Jan 1 |
| 2026 Allstate Sugar Bowl/LHSAA Boys Basketball Tournament (Louisiana) | Various Cities, LA | Feb 27 - Mar 9 |
| 2026 ASAA March Madness Alaska Boys Basketball State Championships | Anchorage, AK | Jan 1 |
| 2026 Boys Basketball Brackets | Various Cities, MS | Feb 16 - Mar 7 |
| 2026 CHSAA Boys Basketball State Tournaments | Various Cities, CO | Feb 24 - Mar 14 |
| 2026 CIAC Boys Basketball State Championships (Connecticut) | Various Cities, CT | Jan 1 |
| 2026 CIF Central Coast Section Boys' Basketball Championships (California) | Various Cities, CA | Feb 20 - 28 |
| 2026 CIF Central Section Boys Basketball Championships | Various Cities, CA | Feb 12 - 28 |
| 2026 CIF LA City Section Boys' Basketball Championships | Various Cities, CA | Feb 11 - 28 |
| 2026 CIF Oakland Section Boys Basketball Championships | Various Cities, CA | Jan 1 |
| 2026 CIF Sac-Joaquin Section Boys Basketball Playoffs | Various Cities, CA | Feb 16 - 28 |
| 2026 CIF San Diego Section Boys' Basketball Championships (California) | Various Cities, CA | Feb 16 - 28 |
| 2026 CIF Southern Section Ford Boys' Basketball Championships (California) | Various Cities, CA | Feb 11 - 28 |
| 2026 DIAA Boys Basketball State Championships | Various Cities, DE | Jan 1 |
| 2026 FHSAA Boys Basketball District Tournaments | Various Cities, FL | Feb 2 - 7 |
| 2026 FHSAA Boys Basketball State Championship Tournament | Various Cities, FL | Feb 9 - Mar 15 |
| 2026 GAPPS Boys Basketball Brackets | Various Cities, GA | Feb 2 - 7 |
| 2026 HHSAA Boys Basketball State Championship | Various Cities, HI | Feb 10 - 14 |
| 2026 IAHSAA Iowa Boys Basketball State Championships (Iowa) | Various Cities, IA | Jan 1 |
| 2026 Kansas Boys Basketball State Championships (KSHSAA) | Various Cities, KS | Mar 8 - 15 |
| 2026 KHSAA High School Boys Basketball Playoff Brackets (Kentucky) | Lexington, KY | Jan 1 |
| 2026 MA MCSAO PLAYOFF BRACKET (Massachusetts) | Various Cities, MA | Jan 1 |
| 2026 MHSAA Boys Basketball State Championship (Michigan) | Various Cities, MI | Jan 1 |
| 2026 MHSA Boys Basketball State Championships (Montana) | Various Cities, MT | Jan 1 |
| 2026 MIAA Basketball Championships (Maryland) | Various Cities, MD | Jan 1 |
| 2026 MIAA Boys Basketball State Championships (Massachusetts) | Various Cities, MA | Jan 1 |
| 2026 MPA (Maine) Boys Basketball Championships | Various Cities, ME | Feb 8 - Mar 1 |
| 2026 MPSSAA Boys Basketball State Championships (Maryland) | Various Cities, MD | Jan 1 |
| 2026 MSHSAA Boys Basketball State Championship (Missouri) | Various Cities, MO | Jan 1 |
| 2026 MSHSL Boys Basketball State Championships (Minnesota) | Various Cities, MN | Jan 1 |
| 2026 NCCSA 1A BOYS BASKETBALL STATE TOURNAMENT | Various Cities, NC | Feb 13 - 21 |
| 2026 NCCSA 2A BOYS BASKETBALL STATE TOURNAMENT | Various Cities, NC | Feb 13 - 21 |
| 2026 NCHSAA Men's Basketball Championship | Various Cities, NC | Feb 24 - Jan 1 |
| 2026 NDHSAA Boys Basketball State Championship (North Dakota) | Various Cities, ND | Jan 1 |
| 2026 NHIAA Boys Basketball State Championships (New Hampshire) | Various Cities, NH | Jan 1 |
| 2026 NIAA Boys Basketball Playoffs | Various Cities, NV | Feb 5 - 23 |
| 2026 NJSIAA Boys Basketball State Championships (New Jersey) | Various Cities, NJ | Jan 1 |
| 2026 North Coast Section Boys Basketball Championships | Various Cities, CA | Feb 17 - 28 |
| 2026 NSAA State Boys Basketball Championships (Nebraska) | Lincoln, NE | Mar 8 - 15 |
| 2026 NSCIF Boys Basketball Playoffs | Highest Seed, CA | Feb 17 - 28 |
| 2026 Nusenda Credit Union Boys Basketball State Championships | Various Cities, NM | Mar 6 - 14 |
| 2026 NYSPHSAA Boys Basketball Championships | Binghamton, NY | Mar 19 - 22 |
| 2026 OSAA Boys Basketball State Championships (Oregon) | Various Cities, OR | Jan 1 |
| 2026 OSSAA Boys Basketball Championship Tournament (Oklahoma) | Various Cities, OK | Jan 1 |
| 2026 Philadelphia Public League Boys Basketball Play-offs | Philadelphia, PA | Feb 5 - 22 |
| 2026 RIIL (Rhode Island) Boys Basketball Championships | Various Cities, RI | Jan 1 |
| 2026 SC SCISA Boys Basketball Tournament (South Carolina) | Various Cities, SC | Jan 1 |
| 2026 SDHSAA High School Boys Basketball Playoff Brackets (South Dakota) | Various Cities, SD | Jan 1 |
| 2026 • UHSAA Boys Basketball State Championships | Various Cities, UT | Feb 10 - 27 |
| 2026 UIL Texas Boys Basketball State Championships | Various Cities, TX | Feb 21 - Mar 14 |
| 2026 VHSL Boys Basketball State Brackets (Virginia) | Various Cities, VA | Mar 3 - 14 |
| 2026 VISAA State Boys Basketball Tournament | Various Cities, VA | Jan 1 |
| 2026 VPA Boys Basketball State Championships (Vermont) | Various Cities, VT | Mar 1 - 15 |
| 2026 WHSAA State Boys Basketball Championships (Wyoming) | Casper, WY | Jan 1 |
| 2026 WIAA Boys Basketball State Championships (Wisconsin) | Various Cities, WI | Jan 1 |
| 2026 WPIAL Boys' Basketball Championships | Various Cities, PA | Jan 1 |
| 58th Annual Jones County Tournament | Murdo, SD | Jan 15 - 17 |
| Bass Pro Tournament of Champions | Springfield, MO | Jan 15 - 17 |
| Beach Ball Classic | Myrtle Beach, SC | Dec 27 - 30 |
| City of Palms Classic | Fort Myers, FL | Dec 18 - 23 |
| GSF Thanksgiving Tournament | Green Sea, SC | Nov 22 - 25 |
| Hazel Pittman Center Thanksgiving Tournament | Great Falls, SC | Nov 24 - 25 |
| Hoophall West | Mesa, AZ | Jan 1 - 3 |
| 'Iolani Classic | Honolulu, HI | Dec 16 - 20 |
| John Wall Holiday Invitational | Raleigh, NC | Dec 26 - 30 |
| Les Schwab Invitational | Portland, OR | Dec 26 - 30 |
| PPL Boys Basketball Invitational Tournament | Philadelphia, PA | Feb 11 - 18 |
| Section X Boys Basketball Tournament 2025-26 | Various Cities, NY | Feb 16 - Mar 6 |
| Tarkanian Classic | Las Vegas, NV | Dec 19 - 23 |
| The Classic At Damien | La Verne, CA | Dec 26 - 30 |
| The Classic at Tennessee High School | Bristol, TN | Dec 26 - 31 |
| The Holiday Classic | San Diego, CA | Dec 26 - 30 |
| WIAA 2026 Boys Basketball Hardwood Classic | Various Cities, WA | Jan 1 |
