On May 20, 2010 — Ubaldo Jimenez of the Rockies flirts with his second no-hitter of the year, allowing only an infield single to Humberto Quintero before leaving the game after the 7th inning because of leg cramps. The Rockies win, 4 – 0, and Jimenez is now 8-1 with an ERA of 0.99.

Source:
Baseball Reference May 20