This study supports LA 2028 Olympic transportation planning by testing transit-oriented Mobility-as-a-Service bundle pricing and partnership models with private mobility providers (e.g., Waymo and Lyft) using realistic one-day visitor itineraries. The results quantify mode shifts, travelers' utility (including travel time and cost), and bundle uptake to provide actionable evidence for Olympic-period transit planning, including funding and subsidy decisions for visitor mobility.