“A lot of people sometimes forget about that but I worked hard and it has finally happened. This is what I have dreamed about, thought about and did everything for and it is amazing to win.”
Vergeer, who was left paralysed after an operation on her spinal cord when she was just eight, could win a second gold when she partners Marjolein Buis against Van Koot and singles bronze medallist Jiske Griffioen in Saturday’s doubles final.
But she also admitted that she is unsure about whether she will defend her title in 2016.
“I don’t know if there is going to be Rio,” she said.
“I don’t know what is going to happen and be part of my social life or private life in the next four years, but as long as I enjoy training and enjoy tennis I will still continue.”
Meanwhile, Britain won bronze in the women’s doubles after Shuker and Whiley staged a superb comeback to beat Khanthasit and Techamaneewat 6-7 (8-10) 7-6 (7-2) 6-3.
The Britons struggled early on and found themselves a set and 3-0 down, but saved two match points in the 11th game of the set before cruising through the tie-break and taking control of the final set.
The third seeds have become the first women to win a Paralympic medal for GB in the sport.
“At the point when we were a set and 3-0 down, I knew I had to get my act together and I did. We turned it around and it is amazing,” said Whiley.
“I can’t express how scared I was facing those match points but I had every confidence in our abilities and I knew we could make it.”