While beginning its diversification into the growing sports of padel and pickleball, Slinger Bag, the young supplier of portable tennis ball launchers recently quoted on the over-the-counter market, reports a strong sequential improvement in its quarterly revenues. They rose to $4.12 million in the third quarter ended Jan. 31 from $2.62 million in the second quarter of its financial year, generating a gross margin of 21.3 percent. Operating expenses trebled as the business was ramped up, leading to a quarterly loss of $1,291,086 as compared to a loss of $1,346,104 in the prior quarter. The company has already shipped some 15,000 launchers so far, and further growth is expected on the back of a growing number of distribution deals. Led by Mike Ballardie, the company has reached a market capitalization of over $91 million on the OTCQB Venture Market.