To a server of your choice. Its impossible for your connection to have a ping of 10 to everywhere in the world.
Many reasons why your "pingtest" doesnt count.
It is a tenth of a second ping to a powerful server of your choice. The game is not connected to a powerful server when you play a game. Your game is connected to a measely Xbox possibly in someones dormroom or a 14 years olds home where they are probably running other stuff like Netfilx.
A pingtest only last a split second while connection to the host is constant and will always constantly fluctuate.
A pingtest uses TCP connections which give each othe handshakes and error correction. Console games do not connect using TCP, they use UDP. A UDP connection is to another Xbox that does not use handshakes, does not error connection, and packets arrive out of order.
A powerful server you connected to can easily handle thousands of incoming connections at once. While some kids Xbox can barely handle 12.
got many more where they came from.
So no you "10 " ping does not matter on a console game.