In September 2007, Gilchrist played in the inaugural World Twenty20. He scored 169 runs at 33.80 as Australia were knocked out by India in the semifinals. Gilchrist then scored 208 runs at 34.66 as Australia took an away ODI series against India 4–2. In November, Gilchrist's peers voted him the greatest Australian ODI cricketer ever, for which he was awarded an honour at an ACA function before Australia's second Test against Sri Lanka. He was only required to bat once in the Tests, and made 67 not out as Australia swept Sri Lanka aside 2–0.