Odd staking situation

[Apathy]

Take his expected ROI in the sat and find what % you would give him would be breakeven for you.

For example if he had a 50% ROI in a 1k sat to a 10k event if you give him more then 5% of the main event you would be losing money, assuming you are a breakeven main event player. Adjust up depending on your mood and perceived main event ROI.