2027 Bowling Calendar
Updated February 2026 Effective immediately, the International Bowling Federation (IBF) will permit only urethane bowling balls that are manufactured with a minimum hardness of 78D and are approved by USBC for use in IBF events, including World Championships and World Cups. Random hardness checks may be carried out during events. Any ball that measures below 72D will be declared non-compliant and removed from the competition.
Updated January 27th 2026
All slow oil-absorbing high-performance bowling ball models as well as any slow oil absorbing high-performance balls (Urethane) produced prior to Aug. 1, 2022, are ineligible for competition.
The List of bowling balls that are NOT ELIGIBLE for use in IBF events LINK
Urethane bowling balls that were previously approved and measure below 78D, but remain on the USBC approved ball list, may still be used in tournaments that choose to allow them. However, they are not permitted in IBF events under this new regulation.
IBF Championships
2027 Nov IBF World Championships2027 South Korea
Only USBC-approved bowling balls are allowed and MUST have the manufacturer's name, product name and serial number clearly visible. The serial number must be the original number. Any ball that does not meet this requirement will not be allowed to play.
2027 Apr 1st - 15th World Seniors Championships, Blu-O Rhythm & Bowl Major Ratchayothin, Bangkok, Thailand
WSrC2027 - Seniors 50+ Division and Grand Seniors 65+ Division. Participants must be born in or before 1977 for Senior and 1962 for Grand Senior. Bulletin 1
2027 World University Games South Korea TBC
TBNZ New Zealand Events 2027
Apr 1 - 15 World Seniors Championships, Blu-O Rhythm & Bowl Major Ratchayothin, Bangkok, Thailand Bulletin 1
May 24 - June 1 IBF World Youth Singles Championships, Lima, Peru
ABF Asia Events 2027
Jan 11 - 16 Sarawak Hornbill Team Cup, Kuching, Sarawak, Malaysia
Apr 1 - 15 World Seniors Championships, Blu-O Rhythm & Bowl Major Ratchayothin, Bangkok, Thailand Bulletin 1
Apr 21 - 25 20th Chinese Tapei International Open, Taoyuan, Chinese Taipei
May 24 - June 1 IBF World Youth Singles Championships, Lima, Peru
May 23 - June 1 45th Malaysian International Open, Petaling Jaya, Malaysia (Youth, Senior & Graded)
June 2 - 6 45th Malaysian International Open, Petaling Jaya, Malaysia (Open Division)
May 29 - June 8 57th Singapore International Open, Singapore (Youth, Senior & Graded)
June 9 - 12 57th Singapore International Open, Singapore (Open Division)
June 14 - 23 26th Asian Junior Bowling Championships, Macau
June 24 - Jul 3 Macau China International Open Bowling Championships, Macau
June 28 - Jul 9 51st MWA-SINGHA Thailand International Open (For Youth, Graded and Senior), Bangkok, Thailand
Jul 10 - 13 51st MWA-SINGHA Thailand International Open (For Open Division), Bangkok, Thailand
Jul 11 - 18 23rd Asian Youth Tenpin Bowling Championships, Hong Kong
Jul 19 - 21 U22 Hong Kong Storm Cup, Hong Kong
Jul 23 - 25 U22 China International Open, Shanghai, China
Jul 30 - Aug 7 50th Hong Kong International Open Tenpin Bowling Championships, Hong Kong
Aug 16 - 19 7th Megalanes Senior Masters, Petaling Jaya, Malaysia
Sept 18 - 27 34th SEA Games Bowling Championships, Kuching, Sarawak, Malaysia
Oct 8 - 10 5th Storm Spinner Cup, Petaling Jaya, Malaysia
Nov 30 - Dec 12 27th Milo Storm U22 International Junior All-Stars, Petaling Jaya, Malaysia
ETBF Euro Events 2027
Jan 29 - Feb 7 European Senior Championships TBA
Mar 6 - 7 BowlingGP NextGen U21 4Teams, Bowling Plaza Reims Thillois, France
Mar 20 - 29 European Youth Championships, Aalborg, Denmark
Apr 1 - 15 World Seniors Championships, Blu-O Rhythm & Bowl Major Ratchayothin, Bangkok, Thailand
Apr 10 - 11 BowlingGP NextGen U14/17/21 Singles, Bowling Plaza Grand Quevilly, Le Grand-Quevilly, France
Apr 30 - May 3 Welsh Open, Stroud, Wales date to be confirmed
April/May Meditteranean Bowling Championships 2027 Portugal
May 13 - 17 Track Senior Open, Wittensheim, France date to be confirmed
May 24 - June 1 IBF World Youth Singles Championships, Lima, Peru
May 23 - 30 35th Malta Open, Eden SuperBowl, St.Julian's, Malta
June 2 - 6 Belgian Senior Open, Mouscron, Belgium
June 9 - 20 European Mens Championships, Helsinki, Finland
June 25 - July 4 European Senior Bowling Championships, Munich, Germany
Oct 25 - 31 European Championships of Champions, Bratislava, Slovakia
Nov IBF World Championships, South Korea
Others USA 2027
March 12 - 14 USBC 2027 ISC and ITC Sectionals. Sectional Competition at Cityview Lanes in Fort Worth, Texas, Smyrna Bowling Center in Smyrna, Tennessee, and Stardust Bowl in Addison, Illinois, and Mount Lebanon Lanes in Pittsburgh.
May 19 - 25 USBC Queens, New Victory Lanes, Mooresville, North Carolina, USA
June 15 - 22 USBC Womens Open, ABC Gates Bowl, Gates, New York
U.S. Collegiates 2026-2027 Season
2026-2027 Intercollegiate Sectionals competition will be held from March 12 - 14th 2027 at Cityview Lanes in Fort Worth, Texas, Smyrna Bowling Center in Smyrna, Tennessee, Stardust Bowl in Addison, Illinois and Mount Lebanon Lanes in Pittsburgh, Pennsylvania. USBC Collegiate Sectionals and USBC Intercollegiate Singles & Team National Championships where No Slow Oil-Absorbing High Performance Balls are allowed - National Tournament Ineligible Ball List All slow oil-absorbing high-performance bowling ball models listed on this List, as well as any slow oil absorbing high-performance balls (Urethane) produced prior to Aug. 1, 2022, are ineligible for competition. In addition, some of the balls listed are ineligible for other reasons as determined by USBC rules.
Previous 2025/2026 Collegiate Rulebook
While tenpinwellington has taken all reasonable care in preparing the yearly bowling calendar, tenpinwellington is unable to guarantee its accuracy and no responsibility is assumed by tenpinwellington for errors and omissions in these entries. Timely correction to the tournaments will be updated when I received notification from my sources.
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