Forty-six weeks on from the Games he said school sport, the economy, volunteering and the main Olympic venues had all made a good start.
But he acknowledged, rightly, that there is still a long way to go.
As London's Olympic Stadium prepares to welcome back big crowds for the Anniversary Games this weekend, it is inevitable that people will ask questions about whether London 2012 is on track to deliver on its legacy promises.
It is worth remembering that no Olympic host city has ever tried to do what London is doing.
Sydney wasted the best part of a decade working out what to do with the Olympic Park at Homebush while Barcelona's use of the iconic diving pool and aquatics centre for this week's World Championships is a notable one off. Beijing's Olympic Stadium is essentially a tourist attraction.
So, to sell out the Olympic Stadium for three days exactly one year on from the London Games is a real achievement.
As I took the all too familiar walk from Westfield to the stadium earlier this week it was impossible to miss the amount of work already completed or under way.
The temporary stands bolted on to architect Zaha Hadid's aquatics centre have been removed revealing the venue in all its curvaceous beauty. One side is partially glazed and when finished it's sure to become the iconic building on the Olympic Park (yes, even better than the velodrome).
As you approach the stadium you have to walk through a b...