Will Dustin Johnson do it this time?

Dustin Johnson is near the top of the leaderboard after the first round of a  major - again. I've commented on Dustin's putting previously (post of 6 April). At that point he ranked 7th on tour for putts per round, but it was his pattern for this stat over tournaments that caught my eye:

Round 1: ranked 3rd on the tour. Round 2: 46th. Round 3: 51st. Round 4: 142nd.

No wonder the poor chap hasn't closed a big one out yet. But what's happened since April?

Dustin's putts per round ranking has fallen to 22nd - still pretty good. The round by round pattern has shifted a bit:

Round 1 ranked 1st on tour. Round 2: 67th. Round 3: 96th. Round 4: 87th

So his performance relative to his peers isn't still steadily deteriorating through the 4 rounds, well not quite. Jordan Spieth's and Jason Day's stats don't look anything like Dustin's, e.g. see http://www.pgatour.com/players/player.28089.jason-day.html/statistics.

Still, I've got a bet on (for a sleeve of 3 golf balls) which I'll certainly lose if Dustin wins. We'll see.