A bogey from Shinkwin after finding the fairway from the tee on the last meant the contest went to extra holes, where the 33-year-old hit a stunning second into the 18th to set up a tournament-clinching birdie.
In predictable contrast, the happiest man on the premises was Cabrera-Bello.
Dodt, from Gatton about an hour west of Brisbane, is a two time victor on the European Tour who appears to have found a new lease of life over the past nine months or so with several good finishes including a runner-up finish at the Australian PGA Championship and a 3rd place at the Hong Kong Open after struggling with his game for much of 2016.
Fox carded a final round two under par 70 to finish on 8 under, five shots behind the victor, Spain's Rafa Cabrera-Bello.
"On the 18th I hit a great second shot in and finished in a divot on a downslope of the [bank of the] bunker", he said.
"I found myself a little bit mentally worn out on the back nine".
Dodt started the final round at Dundonald Links in a share of the lead but dropped out of contention on the back nine, carding a one-over-par 73 to finish eight under.
Six successive pars had kept Shinkwin in touch, but he came to life at the seventh with a birdie and followed that up with two more at the eighth and ninth, all with relatively short putts after some excellent iron play.
"I have played all the course on the Open rota and Royal Birkdale has always been my favourite Open venue because of 2008 and I'm looking forward to competing there", he said. "End of the day, I'll be more than happy to finish second but the win was on my mind and didn't happen". "Just got to keep plugging away and hopefully it turns around next week". I had no shot, really. "We knew it was going to be really tough today but I didn't think they would be quite as bad as they were".
Shinkwin and Dodt are in a good position to claim two of the three Open places available for non-exempt players who finish in the top 10.
"I'm not in The Open yet". "So, it's great news that I've finally done it, play my first major". I need to play well.
Not since the scheduled Champions' Challenge at the 2010 Open Championship at St Andrews had to be cancelled has a big event in Scotland witnessed such dire conditions.
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