"My A final was the best race overall for spreading my speed. I was slightly faster during the second half of the race. In the other two races I tried going too hard too early," Foulsham explained.
The second oldest in his category, Foulsham, was racing against rowers who were 20 and 30 years younger. He recorded a time of 9m32s in his final following a personal best of 9m30s in the repechage which was raced on better water.
A Dutch competitor won his event, a 30-year-old Canadian was second and a 53-year-old Italian third.
"The Italian is my inspiration," Foulsham said.
That was an indication he could continue competing until the 2024 Paralympics in Paris. His single catergory may be accepted for Paralympics level by then.
These world championships were Foulsham's first time competing back at this elite level since the last of his five world championships as a wheelchair marathoner in 2006. In 1992 he finished fifth in the 800m at the Barcelona Paralympics and in 2000 he recorded a ninth placing in the marathon at the Sydney Paralympics.
"While it's in a different sport it's nice to be back at this level. It didn't take long for memories and capabilities to flood back like managing my emotions at the start line," Foulsham recalled.
He was born with no fibula bones and has his lower legs amputated at the age of four. Foulsham has been rowing since 2010 and qualified for Austria by reaching the A final at the FISA International Para-Rowing regatta in Italy in May.