"kick off event" is correct and usable in written English.
You can use it whenever you are referring to the start of a process, activity, or series of events. For example, "We were invited to the kick off event for the company's new product launch."
The BBC spoke to participants at Police Week's kick off event to find out how they think the American public perceives them.
At a kick off event in New York City today, the gaming giant offered some hands-on insight into the system, and revealed a few bits of unannounced functionality that will be available when the kits launch in April.
We knew Samsung would be launching a tablet or two at tonight's big Mobile World Congress kick off event, but it turns out the company also had a couple of other surprises of its sleeve.
There were so many nuggets of wisdom learned during the Fashion in Film kick off event.
Arthur Ashe Kids' Day is the official kick off event for the 2016 U.S. Open Tennis Championships, which runs from August 29th through September 11th.
To round off the great kick off event, the Lebanese band-slash-world-movement Mashrou' Leila will perform, for the first time in Italy.
The Iowa caucuses, the kick-off event of the US presidential primary season, have revealed much but settled nothing.
The kick-off event for the Tour de France held in the summer cost £10.5m of which £9.2m was provided by the mayor.
It is to be the kick-off event in a series of arts seminars organized by the Asia Society, the Aspen Institute and the Chinese People's Association With Foreign Countries.
At the kick-off event, individuals will each select a single candidate to protest for the week, dividing into smaller groups that will come up with their own strategies for targeting coming campaign stops.
Similarly, Mrs. Edwards told gay leaders at a kick-off event for the San Francisco gay pride parade last week that she supported same-sex marriage, a position at variance with Mr. Edwards's.
