This is the 1812th most frequent Japanese word.
始まる
"始まる" means "to begin" or "to start."
In this sentence, "始まる" is used to indicate that an event (the class) is going to start.
授業はもうすぐ始まります。
The class will soon begin.
Here, "始まる" illustrates a situation or state (a new life) commencing.
新しい生活が始まった。
A new life has begun.
In this usage, "始まる" pertains to an activity (the match) initiating.