MONTREAL (AP) -- Disgraced Russian marathon runner Liliya Shobukhova can race again after giving evidence for other doping investigations.
The World Anti-Doping Agency says Shobukhova's "substantial assistance" earned a seven-month cut in her existing ban of three years, two months. The reduced sanction expired Sunday.
WADA says the former Chicago and London Marathon winner's evidence is "confidential and could be used against other individuals."
Last December, German broadcaster ARD alleged Shobukhova paid Russian officials 450,000 euros ($520,000) to avoid a threatened doping ban before the 2012 London Olympics.
WADA later created a commission to investigate alleged systematic doping in Russian athletics.
In June, all parties agreed Shobukhova should serve a three-year, two-month ban through March 2016.
She was stripped of three Chicago wins and one in London for blood doping.