While Ben Harvey, 17, eased to a 21-10 win over fellow youngster Josh Bonsall in the men's singles final, Emma Snell needed to dig deep to pip Kay Chivers, the multiple island table tennis women's singles champion, who was searching for her first big success since taking up the sport.
After the two finalists had shared doubles to start the final, Snell slowly took control and led 11-6 after 10 ends.
But a run of four winning ends, including a full-house, took Chivers 13-11 ahead and with another four on the 18th, followed by a single and a double, she led 20-15 and needed just one more to take the trophy.
But it proved a shot too far.
Snell, who has emerged via the Tigers Club production line, responded with a full-house and, having squared the match at 20-20, notched her second successive single to win by the slenderest of margins.
Other than an early full-house, Bonsall struggled against fellow Tigers junior Harvey, who needed just 17 ends to clinch his first senior island title in a year when many of the island's top bowlers were not involved.