Team GB's hopes of a women's archery medal lie with Olympic debutant Amy Oliver after experienced pair Naomi Folkard and Alison Williamson were eliminated at Lord's.
Kidderminster-based Folkard gave the home fans something to cheer when she defeated the highly-rated Russian Kristina Timofeeva in the round of 64 but came unstuck in the next stage against 10th seed Mariana Avitia of Mexico.
Stafford's Williamson, making a British record-equalling sixth Olympic appearance at the age of 40, was ousted at the first hurdle, losing the last three sets against Mongolia's Bishindee Urantungalag to bow out.
Folkard recovered well after starting her first match with a nervy seven, twice coming from behind to see off Timofeeva 6-4 across five sets. But she was unable to win a set against the in-form Avitia, drawing the first and last and losing two in the middle as the Mexican shot five centre golds on the way to a 6-2 success.
Williamson went 2-0 ahead in her last-64 clash but her aim wavered as Urantungalag claimed the last three sets for a 7-3 win.
Rotherham archer Oliver begins her challenge tomorrow with an elimination match against world number one Deepika Kumari.
Williamson, an ever-present for Great Britain since her Olympic debut in Barcelona 20 years ago, was visibly affected by her exit.
She was warmly received by a crowd that included many friends and family - including her parents, in position as Games Makers - and was desperate to reward them with at least one success.
"It was more than a little disappointing. It's sad," she said. "I did a bit of a 'Goldilocks' - a little bit high, a little bit low, a little bit right, a little bit left.
"Basically, when you're trying too hard to hit the middle, you don't. It's disappointing because the crowd here is so fantastic and I didn't get another chance to feel that tremendous home support."