However, figures are only performed when a swimmer is under the age of 15/16 and has not reached the junior age group. United States In the United States, competitors are divided into groups by age. The eight age groups are: 12 and under, 13–15, 16–17, 18–19, Junior (elite 15–18), Senior (elite 15+), Collegiate, and Master. In addition to these groups, younger swimmers may be divided by ability into 3 levels: Novice, Intermediate, and age group. Certain competitions require the athlete(s) to pass a certain Grade Level. Grades as of now range from Level one to Level six, and will soon go to Level ten. Seasons range in length, and some swimmers participate year-round in competitions. There are many levels of competition, including but not limited to: State, Regional, Zone, National, Junior Olympic, and US Junior and Senior Opens. Each swimmer may compete in the following routine events: solo, duet, combo (consisting of ten swimmers), and team (consisting of eight swimmers). In the 12 & under and 13-15 age groups, figure scores are combined with routines to determine the final rankings. The 16-17 and 18-19 age groups combine the scores of the technical and free routines to determine the final rankings. USA Synchro's annual intercollegiate championships have been dominated by The Ohio State University, Stanford University, Lindenwood University (which no longer has a collegiate program), and The University of the Incarnate Word. Canada In Canada, as of 2010, synchronized swimming has an age-based structure system with age groups 10 & under, 12 & under, and 13–15 for the provincial levels. There is also a skill level which is 13–15 and juniors (16–18) known as national stream, as well as competition at the Masters and University levels. The 13–15 age group and 16–18 age group are national stream athletes that align with international age groups – 15 and Under and Junior (16–18) and Senior (18+) level athletes. Wildrose age group is for competitors before they reach 13–15 national stream. Wildrose ranges from Tier 8 and under 16 and over provincial/wildrose. These are also competitive levels. Recreational levels, called "stars", also exist. Synchro Canada requires that a competitor must pass Star 3 before entering Tier 1. To get into a Tier a swimmer must take a test for that Tier. In these tests, the swimmer must be able to perform the required movements for the level. (Canada no longer uses Tiers as a