Courtesy AOC: A day after his breakthrough silver medal at the 2014 World Sprint Speed Skating Championships, Australia's Daniel Greig has repeated the incredible feat in the second 500m race

Greig, a former inline skater who only stepped onto the ice for the first time five years ago, was second in the 500m in 35.17 seconds, just 0.05 behind his best mate and training partner Michel Mulder of the Netherlands.

"We are super excited with this result," coach Desly Hill said. "Daniel was the best he has been in his short skating career so far. He had personal records for the openings and also for sea level races."

The 22-year-old skater, not only grabbed the silver medal for his efforts and set personal records, but impressed everyone by being the only athlete to improve on his 500m time from the previous day.

But the accolades didn't end there for the young Victorian skater.

A couple of hours later, Greig went on to finish a credible fifth in the 1000m.

Greig drew the inside lane against Dutch skater Ronald Mulder, the twin brother of Michel who won last night's 500m event.

The pair were evenly matched throughout the 1000m race, with Greig snatching the win by just 0.24 seconds to finish in 1:10.35.

The 22-year-old Victorian was just 1.39 seconds off the pace of eventual winner, Shani Davis of the United States. Davis, the defending Olympic Champion over 1000m from the past two Olympic Games, took out the title in 1:08.96.

Denis Kuzin of Kazakhstan and Michel Mulder of the Netherlands rounded out the medals.

Greig's two silver medals and fifth place meant that he finished third overall at the World Championships behind Michel Mulder and Davis.

He will now head back home for final training and preparation ahead of the Sochi 2014 Games which get underway on 7 February.

Australian long track speed skater, Daniel Greig, has produced a breakthrough result at the ISU World Sprint Championships in Nagano, Japan, by taking the silver medal in the 500 metre event.

The AIS scholarship holder finished 0.36 seconds behind Michel Mulder from the Netherlands, with Mirko Giacomo Nenzi from Italy in third, a further .08 seconds back.

It is the first major long track race in 2014 and the last big event before the Sochi Olympic Winter Games on the long track calendar.

Greig’s coach, Desly Hill, was delighted with the performance of the young Australian, who will compete in both the 500 meter and 1000 metre races in Sochi.

“Breakthroughs like these are an accumulation of everyone's hard work, and Daniel has worked incredibly hard,” Hill said.

Greig will now compete in the 1000 metre race tomorrow.

“He is smiling today and ready to try again tomorrow,” Hill said.