In 1935, Igls hosted the two-man event of the world bobsleigh championships when the track ran from Römerstrasses to the Patscherkofel valley railroad station. Several fatal accidents at the finishing curve occurred during competition, causing temporarily closure of the track until safety measures were introduced. In 1960, Innsbruck was awarded the 1964 Winter Olympics which led to the construction of separate bobsleigh and luge tracks for the games. Track construction began in September 1961 and was officially completed in July 1963 following test runs of both tracks, including twenty injuries during the 1963 FIBT World Championships on the bobsleigh track. Prior to the start of the 1964 Winter Olympics, British luger Kazimierz Kay-Skrzypeski was killed in a training run on the luge course. When Denver, Colorado, in the United States withdrew in 1972 after being awarded the 1976 Winter Olympics two years earlier for financial reasons, the International Olympic Committee offered the games to 1976 runner-up Whistler, British Columbia in Canada (northeast of Vancouver), but Whistler declined in the wake of the provincial elections in 1972. As a result, the IOC gave the games to Innsbruck. Construction on a new, combined track was started in 1973 under the auspices of the International Bobsleigh and Tobogganing Federation (FIBT) and the International Luge Federation (FIL) and completed the following year. The track was praised by the FIL during testing in 1975 and proved so successful that it fostered a commission with the FIBT and the FIL on construction of combination tracks in 1977 that continues to this day. (Known as homologation, an example of this dual certification process occurred prior to the 2006 Winter Olympics, when adjustments to the track at Cesana Pariol were made following FIL concerns about the run.) The track added a restaurant and was extended in 1981. In 1990-1, the ladies start house at the fifth turn was renovated and the finishing stretch was extended in 1998. The track was part of the OlympiaWorld-Innsbruck in 2004, the same year a general refurbishment was done on the concrete shell. Today, it serves as a training facility for new bobsledders and skeleton racers. It hosted the bobsleigh, luge, and skeleton events for the 2012 Winter Youth Olympics.