In the event there is a pitching change prior to the game, the money line will be adjusted and "action" bets will be graded using the opening price for the new pitcher and the risk amount of the original bet. A pitcher is deemed a starter after throwing the first pitch to the opponent's first batter.
For example, you bet on the Angels at -103, risking $103 to win $100. The opening line for the new pitcher was - 115. Your wager would be graded as risking $103 to win $89.56. Conversely, if you bet $103 to win $100 and the opening line for the new pitcher was +190, your wager would be graded as risking $103 to win $ 195.70.
We use the risk amount to calculate the new win amount. We do not change the risk amount (the amount you originally bet) when calculating the adjusted win amount.