Somdev Devvarman's stay in the top-100 lasted just a week, as the Indian suffered a huge loss of 15 positions to find himself at 111th spot in the latest ATP rankings.
He failed to defend 55 points at the Washington event last week and could not even qualify for the main draw, thus suffering a huge blow.
In the WTA rankings, Sania Mirza's slide continued, The Indian ace found herself at No 153 after a loss of 15 places.
Ever since her first round Wimbledon defeat, Sania has been playing ITF events instead of WTA Tour but could not garner much points.
Somdev had entered the top-100 for the first time in his career last week following the second round appearance at the Los Angeles ATP event.
Meanwhile, in the ATP doubles ranking, Leander Paes (6) kept his position intact but Mahesh Bhupathi slid to eighth from seventh.
Rohan Bopanna gained one spot to career best 33 following his stunning win against Bryan brothers along with Pakistan's Aisam-ul-Haq Qureshi at Legg Mason Classic.