(one's) number comes up

(one's) number comes up

One is selected for something by chance or at random, whether it be fortunate or unfortunate. All I heard were horror stories about the war in Vietnam. I'm not too proud to admit that when my number came up to serve, I very nearly absconded to Canada. He scans the lottery results every day to see if his number has finally come up.
See also: come, number, up
Farlex Dictionary of Idioms.

your/somebody’s (lucky) ˈnumber comes up

(informal) somebody is very lucky in a competition, etc: If my lucky number comes up, we’ll spend a weekend in Venice.
See also: come, number, up
Farlex Partner Idioms Dictionary
See also:
  • your/somebody's number comes up
  • luck out of
  • luck out of (something)
  • read the (hand)writing on the wall
  • read the handwriting on the wall
  • see the (hand)writing on the wall
  • see the writing on the wall
  • in luck
  • pot luck
  • just (one's) luck