After a long period of ignoring the issue, the International Bowling Federation finally has acted on urethane (aka slow oil-absorbing high-performance) bowling balls, matching the PBA Tour rule by banning urethane balls below 78D hardness. In addition, IBF said in its Newsletter 12 that random hardness checks may be carried out during events and any ball that measures below 72D will be declared non-compliant and removed from the competition. The list of bowling balls not eligible for use in IBF... Social Media:
Upcoming Tournaments:| Name | Bowling Alley | Address | Start Date | End Date |
|---|---|---|---|---|
| ISC Sectionals | Smyrna Bowling Center | 95 Weakley Ln, Smyrna, TN 37167, USA | March 13, 2026 | March 13, 2026 |
| 19th Annual Open Championship | Bowlero Riverview | 2908 Riverview Rd, Birmingham, AL 35242, USA | April 18, 2026 | April 26, 2026 |
| Detroit Traveler's Mixed Dbls | Oak Lanes | 8450 Middlebelt Rd, Westland, MI 48185, USA | April 18, 2026 | April 18, 2026 |
| SOJT | Ten Down Bowling & Entertainment | 2400 NE Diamond Lake Blvd, Roseburg, OR 97470, USA | September 14, 2025 | May 10, 2026 |
| ISC Sectionals | Stardust Bowl | 37 E Lorraine Ave, Addison, IL 60101, USA | March 13, 2026 | March 13, 2026 |