The Weekly Competition forces you to compete with those with much higher multipliers
Update:
After careful observation, its apparent that Road Riot recycles names and levels. This is their attempt to force you to use more gems to win. At least be smart and use different names.
This part of my review still applies:
I hate how the weekly competition forces you to go against those who have higher multipliers. Its unfair to compete with someone who has 20-30 more in their multiplier.
supermario580 about
Road Riot Combat Racing, v1.27.11