About Rules
You may know that when you step over the foul line in bowling and deliver the ball down the lane, you have committed a foul and get zero for that shot. But did you know that if you cross the line but don’t let go of the ball, it’s not considered a foul?
That and hundreds of other rules for the sport of bowling are the responsibility of the United States Bowling Congress.
As the sport’s national governing body, the USBC maintains bowling's integrity by consistently interpreting and enforcing the playing rules for USBC league and tournament competition. By helping bowlers, association leaders, tournament managers, league officers and others understand the rules of the sport, USBC ensures for us that play is fair so we can enjoy it more. Those efforts also allow USBC leagues and tournaments to run more smoothly.
While the USBC Playing Rules is perhaps the most visible and main overall responsibility of the USBC Rules Team, the group does more than that. The USBC Rules department provides online guidebooks such as the League Operations Handbook that help leagues keep track of their finances and run their leagues more efficiently, and the Tournament Manager’s Manual that gives tournament officials checklists, applicable rules, forms and letters that help them run their events.
Our expert counselors work behind-the-scenes for you, answering thousands of e-mails, other written requests and phone calls each year relating to rules interpretation and direction, rules infractions, different approved competition formats, eligibility requirements, tournament prize distribution, online tournament certification, specific rules for USBC Youth, High School and Collegiate bowling programs and eligibility questions.
Remember that the USBC rules and regulations are here for you to enjoy the sport and know that it is being played fairly around the world.
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Online Tournament Certification
Certifying your USBC tournament has never been easier. Complete the certification process online and save time and paperwork. Certify your tournament when it’s convenient for you whenever you want on your computer, on your time.
This time-saving new feature streamlines the tournament certification process and saves valuable time for tournament managers.
USBC now requires all tournament managers to certify their events this way. Go green by using this paperless technology to expedite the certification process.
The process initially takes about 30 minutes to complete and can be done at any time. Those who registered online last season and submitted all required reports can renew the same event online this season. Go to the tournament certification link under "Departments" on bowl.com. Log in under your user ID and password and click "renew." You can then review and update the center(s), tournament date(s) plus make any changes to the rules previously selected.
Within 30 days of the tournament's completion the required financial report can be submitted online; however, the prize list must be e-mailed, faxed or mailed to Tournament Certifications per Rule 309. In the future, the prize list also will be submitted online.
If you need assistance using the new online tournament certification program, call (800) 514-BOWL, ext. 3155 or e-mail rules@bowl.com
. Office hours are Monday-Friday, 8am-5pm CST.
Let’s get started!Handicap Percent | Championships won by team with average below median in the league | Championships won byteam with average above median in the league |
70 | 0 out of 100 | 100 out of 100 |
75 | 0 out of 100 | 100 out of 100 |
80 | 0 out of 100 | 100 out of 100 |
85 | 6 out of 100 | 94 out of 100 |
90 | 11 out of 100 | 89 out of 100 |
95 | 24 out of 100 | 76 out of 100 |
100 | 30 out of 100 | 70 out of 100 |
BASE 200 | BASE 200 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
TEAM A | TEAM B | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Guide to League IssuesAUDITS
Contact Us
We are confident this version of the rule book will make finding the rules that you are looking for easier. However, if after searching you still need a question answered, the USBC Rules team is here to help you. We can be reached between the hours of 8:00 A.M. to 5:00 P.M. CST Monday through Friday at (800) 514-BOWL ext. 3155 or by e-mail at rules@bowl.com

| 3 Game |
95% | |
90% | |
85% | |
80% | |
75% | |
70% |
| Single Game |
95% | |
85% | |
80% | |
75% | |
70% |
