200 not out, India v South Africa, Gwalior, 2010
The leading runscorer in one-day international cricket, it was fitting that Tendulkar became the first batsman to score a double hundred in one innings. Opening the batting in a day-night match, Tendulkar took 90 balls for his first century before smashing his second off just 57. A single with four deliveries remaining saw Tendulkar pass the double-hundred milestone and send the adoring Indian fans wild.