Before the game, Dalian ranked seventh with six points in the eight-team division, while Henan, also on six points, sat at the bottom by virtue of their inferior goal difference.
The 33-year-old striker, who came on after the interval, latched onto a through pass from teammate Wu Xi before sending it into the net in the 65th minute.
Fiorentina loanee Pedro put the visitors ahead in just the second minute by pouncing on an errant pass and sliding home from close range.
The 23-year-old Dutchman has signed a five-year contract at Old Trafford, with an option to extend by a further year. The transfer fee is 39 million euros (46 million U.S. dollars), which may increase to 44 million euros if certain clauses are met.
The competition in Lausanne's Place de l'Europe played host to a fascinating duel between Duplantis and two-time world champion Sam Kendricks from the United States, whose best jump was 6.02 meters.
In the 65th minute, Dalian's Ke Zhao added a goal of his own and sealed the 4-0 victory.
The hosts added their third goal when Daniel Sampaio latched onto Marco Antonio's pass to slot home in stoppage time.
"COVID-19 brought us lot of challenges, which were highlighted in the copyright negotiations. We are regretful to announce the termination with Premier League despite rounds of negotiations," read a statement.
BEIJING, Sept. 3 (Xinhua) -- The English Premier League announced on Thursday that they have terminated their cooperation with Chinese broadcaster PP Sports.
Garcia looked untouchable in the first set and for much of the second, blasting 30 winners and breaking Pliskova's serve three times en route to a 6-1, 7-6 (2) victory.
"It's top players, so if you wait for the mistake it's never going to happen," Garcia said. "If you let Pliskova breeze and take your serve, you're never going to make a return, and then it's 6-4, 6-4 and you're done in one hour."