There was a five-way tie at the top of the leaderboard on day four as the Volvo China Open set itself up for a dramatic finish.
Adrian Otaegui and Matt Wallace entered Sunday with a share of the lead and while they both made early birdies to get to 13 under, they were joined there by Alexander Björk, Jordan Smith and Jeunghun Wang.
Lucas Bjerregaard, Soomin Lee and Scott Vincent were then at 12 under.
By the time the two overnight leaders teed off they were already in a five-way share on what was set to be another day of low scoring at Topwin Golf & Country Club.
Englishman Smith turned in 32 with birdies on the first, second, seventh - after a nice approach - and eighth, while Zimbabwe's Vincent made four gains in a row from the fifth.
Swede Björk hit a brilliant approach into the first to swell that group further and with the final group coming up the first, South Korean Wang added to a birdie on the second with a gain on the fourth.
Vincent was flying and he made it five birdies in a row on the ninth to turn in 31 and take the lead on his own but he was not alone for long.
England's Wallace had hit a beautiful drive up the first and he put his approach to three feet for an opening birdie.
A ten-footer from Wang on the fifth moved him into a share and Spaniard Otaegui was the next man to join the party, holing a brilliant 25-foot left-to-righter on the second.
Every player in the top ten who had already played the eighth had birdied it and South Korean Lee joined the club, adding to birdies on the first and second to sit just one shot off the lead.
Otaegui hit a poor bunker shot on the third but chipped in brilliantly to save par with Wallace also making a smart up-and-down after going right with his second.
Smith birdied the 11th for the third day in a row to join the lead and when Björk took advantage of the par five fourth, there was a five-way tie again.
Dane Bjerregaard had birdied the first and bogeyed the fourth but made a hat-trick of gains from the sixth and added further birdies on the 11th and 12th to sit alongside Vincent who had bogeyed the tenth.
Defending champion Alexander Levy was in the group at 11 under alongside Italian Andrea Pavan and England's Aaron Rai.
