It is really easy to fall into the trap of thinking someone else’s victory is your defeat. That their achievement makes you seem smaller.
This thinking is so wrong as to be dangerous. Internal teams may compete and even keep score but the competition must be friendly. There are not winners and losers. My success does not diminish your own.
In fact, our collective successes may even enhance the individual achievements.
Any action (solo or collective) that enhances the business helps everyone else. Any other way of thinking is destructive to long-term group achievement.