请问这句话怎么译?He is running his second Race in as many years

请问这句话怎么译?He is running his second Race in as many years
前文才说他去年跑过一次,今年又跑一次,那么那个as many
我之前说得有点不清楚了，应该是，前文才说他去年跑过一次，今年也就是这个句子提到的要跑第二次，那么为什么又提到那个as many years呢？