The partnership will allow the supplier to continue its growth in Europe, with its content now available in more than 50,000 betting shops and 400 websites.
Golden Race also recently signed a deal with 888 Holdings, while DraftKings has also expanded into virtuals in the US with Inspired Entertainment.
Golden Race CEO & founder Martin Wachter said: "Thanks to this partnership Golden Race will reach Interwetten’s big audience with the latest virtual sports and games.
"It is a very important alliance for us and we are very proud, as it is known Interwetten only partners with the best software companies."
Operator Interwetten has enjoyed a fruitful time as of late, posting its most successful financial results in 2019, which saw gross gaming revenue grow 25% year-on-year to €99.5m ($107.5m).
Speaking at the Betting In Face Of COVID-19 virtual conference last week, Golden Race CEO Wachter said he sees "big growth" in the in-play virtual sports betting market and believes the vertical will grow even when live sports returns.
