Referee and umpire assigning software that makes scheduling and assigning your officials easy. provides mobile friendly referee and umpire assigning, scheduling, allocation and management software systems.

Mobile Friendly

Free Android and iOS apps are available to all users. Check your schedule any time and get push notifications and/or text messages to keep you up to date. provides automatic calendar synchronizing for referees and umpires to keep their schedules and assignments organized.

Calendar Sync

Automatically keep your calendar up to date with your latest assignments using our ICS or Google Calendar integration methods. You'll never have a reason for another missed assignment again.

Built By Assignors, Officials & Referees
Built For Assignors, Officials & Referees

Assignors nationally are praising for finally producing a fully comprehensive online referee and officials scheduling and management software program.

Welcome to, the premier online software system for referee, umpire, and officials assigning, scheduling and management.  Our company has taken user suggestions over the years to create the most comprehensive referee, umpire and officials assigning and scheduling system available.  We are committed to create the most efficient and comprehensive features and benefits for our users to encompass any need they could possibly have when assigning and scheduling referees, umpires and officials.   Creating a schedule for or managing your referees, umpires and officials could not be easier!   We are determined to make the management, assigning and scheduling process for referees, umpires and officials for any sport fast, easy, and enjoyable!
  • offers management, assigning and scheduling systems for every major sport.
  • Referees, Umpires and Officials can easily manage their profiles across multiple associations!
  • Coaches, Athletic Directors, and League Administrators can also manage their teams and schedules.
  • Our staff is committed to creating the best management, assigning and scheduling features available.
  • Make a feature suggestion.  We add new features daily based on your feedback.
  • Check out our uncensored Customer Testimonials!
HorizonWebRef is the future of online management, assigning and scheduling and is dedicated to encompassing every aspect in our software systems. Contact Us today to see how our referee scheduling software can help you manage, schedule and assign your league referees, umpires and officials! provides A+ Technical Support to all referees, umpires, assignors, coaches, athletic directors, league personnel, team personnel and all system users for your assigning, scheduling, allocation and management software.

A+ Support

The support staff is second to none. Any of your assignors, schedulers, coaches, athletic directors, officials and umpires can reach us by Live Chat, Email, Text Message, Facebook or Twitter to get help when they need it. is a powerful online referee and umpire assigning, scheduling, allocation and management software system that is easy to use

Powerful & Easy

Scheduling officials, referees and umpires to your games has never been easier. With easy to use tools like conflict detection, ratings & feedback, qualifications and many more, you can stop trying to remember the little stuff. Let handle it for you.

"THE BEST I have ever come across"

"I have used a number of assigning websites over the years and without question this is THE BEST I have ever come across. It is easy to use, and they can make any adjustment to make your scheduling system fit your specific needs. I use it everyday and have recommended this site to every assignor I do business with and they have made the switch. Everyone is very happy with the change."


Gene Binda, Atlantic Hockey Association

Division I College Hockey

"Cut my day to day scheduling workload in half"

" has cut my day to day scheduling workload in half. I now rely on the system, as well as the officials I assign to do the communication (email/text) grunt work. I no longer have to "negotiate" schedule offerings / accepts or declines manually via email. - Great Product - Even better when I have to submit payroll as the readily available reports are there instantly and accurate. I very much trust this system and hardily recommend it to fellow schedulers - regardless of the specific sport."


Al Sterling, Avalanche Nashua Hollis currently provides online scheduling, assigning, allocation and management software systems for officials, referees and umpires in over 17 countries around the world. Our web based software currently assists schedulers and assignors for archery, badminton, ball hockey, baseball, basketball, bocce, bowling, boxing, competitive cheerleading, cricket, cross country, cross country skiing, curling, dance, equestrian, field hockey, figure skating, flag football, football, golf, gymnastics, ice hockey, inline hockey, lacrosse, mixed martial arts, netball, pom pon, racquetball, riflery, ringette, roller derby, rowing, rugby, sideline cheerleading, ski, snowboarding, soccer, softball, squash, swimming, tennis, track & field, underwater hockey, volleyball, water polo, weightlifting, wrestling, and others can be accommodated too.
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