Result
Almost Certain: Roll d2 on [1-10:No;11-100:Yes]
Likely: Roll d2 on [1-25:No;26-100:Yes]
50/50: Roll d2 on [1-50:No;51-100:Yes]
Unlikely: Roll d2 on [1-75:No;76-100:Yes]
Small Chance: Roll d2 on [1-90:No;91-100:Yes]
The oracle answers yes/no questions.
Decide on the odds before rolling:
Almost Certain
Likely
50/50
Unlikely
Small Chance
Then press roll and look to the row you selected for the answer.
Ironsworn by Shawn Tomkin (ironswornrpg.com)
Almost Certain: Roll d2 on [1-10:No;11-100:Yes]
Likely: Roll d2 on [1-25:No;26-100:Yes]
50/50: Roll d2 on [1-50:No;51-100:Yes]
Unlikely: Roll d2 on [1-75:No;76-100:Yes]
Small Chance: Roll d2 on [1-90:No;91-100:Yes]