The former US Open champion was left shaken and began crying when she noticed a fan in the stands of her last match who had followed her to four different resorts in three different countries.
As SunSport reported last Sunday, the Brit is determined to get back on the tennis court as quickly as possible in California despite her stalker hell recently in Dubai.
WTA bosses and Indian Wells officials are set to ramp up security at Tennis Paradise to ensure there is no repeat of the incident that blighted her second-round loss to Karolina Muchova in the UAE.
EMMA RADUCANU heads out to Indian Wells this weekend without a new coach by her side.
Raducanu, 22, was left in tears on court as her match with Muchova was suspended.