Kamiji went into the first final of the day at the Marguerite Tennis Pavilion in Mission Viejo, California against the Netherlands' defending champion, Jiske Griffioen, who was hoping to uphold the 20 years of dominance seen by Dutch players in the women's singles.

However, the Dutchwoman's serve deserted her at key times during the match and she eventually went down to a 7-6, 3-6, 6-4 defeat to her opponent.

"It's been a great week at the NEC Masters here in Mission Viejo," Kamiji said.

"I'd like to thank Jiske Griffioen and her team for making such a great final.

"She was a really tough opponent.

"I also want to thank the people who were involved in this great tournament and made great atmosphere.

"Finally, I'd like to thank my team, especially my coach for helping me during the year.

"It's been a great season.

"I won my first Super Series and Masters titles and reached my highest ranking position.

"I look forward to playing the next season and hopefully winning a Grand Slam title."

Yui Kamiji is the only non-Dutch player to win the NEC Wheelchair Tennis Masters women's singles title ©Steve Wylie


Japanese players continued their impressive display at the Masters as defending champion Shingo Kunieda became only the second person to win back to back men's singles titles after a 6-0, 7-6 victory over Belgium's Joachim Gérard.

Gérard had displayed immense talent in the round-robin phase of the competition beating France's Stéphane Houdet and the Netherlands' world number three Maikel Scheffers.

Kunieda proved his world number one ranking in the final, however, and powered through the first set to love.

Gérard put up more of a battle in the second set, coming back from 4-3 down to take a 5-4 lead and a chance to take the set.

Kunieda stepped up the gears again though, taking set and match in a thrilling tiebreaker that saw him secure his second Masters singles title in as many years.

America's David Wagner came into his final looking to win his sixth NEC Masters Quad singles title.

The world number one was up against Lucas Sithole, the first African player to win a Super Series title and a Grand Slam wheelchair tennis title.

The 27-year-old US Open champion was now hoping to become the first African to win an NEC Masters singles title, and began his bid in tremendous style, taking the first set six to love.

Having previously beaten Sithole in the round-robin phase of the tournament, Wagner came out for the second set much more positively, scoring an early break before holding serve to gain a 2-0 advantage.

A double fault at the end of a marathon fourth game saw Sithole level the tie however, but cheered on by his legion of enthusiastic supporters he took the next four games to pull the match level at one set apiece.

Wagner went from strength to strength after that and finally claimed his sixth quad singles title winning the final set by six games to two.

America's David Wagner enjoyed success in both the quad singles and doubles events to maintain his dominance in the Wheelchair Tennis Quad classification ©Steve Wylie

Wagner made it two gold medals in as many days when he and compatriot Nick Taylor also took the quad doubles crown in the International Tennis Federation's (ITF) Wheelchair Tennis Doubles Masters.

The event was running alongside the NEC Singles Masters for the first time in over a decade and saw the American duo retain their title for the fourth year running to claim their seventh title since 2005.

The pair did not drop a set throughout the whole round robin stage, losing just six games in their three opening matches.

Their form carried through to the final where they comfortably beat fellow American Greg Hasterok and Canada's Sarah Hunter, 6-1, 6-2, to maintain their dominance in the quad doubles event.

Just a couple of hours after becoming the first non-Dutch player to win the NEC Wheelchair Tennis Masters women's singles title, Kamiji joined Dutch players Esther Vergeer and Griffioen in also becoming a winner of both singles and doubles titles at the year-end championships in the same season.

Kamiji and Britain's Jordanne Whiley found themselves four games to two down in the first set against Germany's Sabine Ellerbrock and South Africa's Kgothatso Montjane, but mustered a superb four game streak to clinch the set 6-4.

After Kamiji and Whiley had gained a slender 2-1 lead in the second set, Ellerbrock was forced to take a medical time out for treatment on her back.

When the match resumed the German immediately dropped her serve, leaving the dominant pair of Kamiji and Whiley to storm to a 6-1 second set and a share of the title.

"I am very happy to win the singles and doubles today and I look forward to coming back to play here with Jordanne next year if she wants to play with me," said Kamiji following the win.

After playing on opposites sides of the net in last year's final Gordon Reid and Stéphane Houdet teamed up to take the 2013 Wheelchair Tennis Masters men's doubles title ©Steve Wylie