Trader consensus on Polymarket has locked in Elon Musk at a 100% implied probability as the richest person on March 31, 2026, driven by his commanding $817 billion net worth atop the Forbes Real-Time Billionaires List—over $579 billion ahead of Larry Page in second place. This unchallenged frontrunner status reflects Tesla's robust stock gains and SpaceX's soaring private valuations through March, which propelled Musk beyond the $800 billion milestone and extended his lead amid tech sector momentum. Larry Page posted a 4.78% daily uptick on March 31, but the gap remains insurmountable; realistic upsets would require an unprecedented Tesla collapse or rival windfall before the Bloomberg Billionaires Index's 5:30 PM ET snapshot, a near-impossible scenario given historical volatility patterns.