A 27-11 lead after the first quarter, including a 24-0 dominance from tip-off, decided Shandong as the eventual winner.
"It is going to be a race for all, full of surprises, that will allow you to test yourself either running alone on the route of your choice, or being joined by a small number of friends and/or family members," read the SEGAS statement. Enditem
"We have been plagued with injuries during the first stage but grappled with reality," Said Shenhua coach Choi Kang-Hee. "We'll do our best next round."
Despite the goal, Real Madrid had to thank keeper Thibaut Courtois for the win after the Belgian made a series of impressive saves.
In case of infections within club ranks, clubs must ensure at least a 13-man squad to compete in games.
Both sides didn't pose any threat to the other and no goals were scored in the first half.
Attracting around 300 swimmers, the 2020 championships are being held from September 26 to October 2 in Qingdao.
Also on Monday, Hebei China Fortune beat Qingdao Huanghai 3-1, so Hebei will face Guangzhou Evergrande in the next stage.
Dortmund responded with furious attacks but Gikiewicz was alert enough to keep out promising chances from Thomas Meunier and Erling Haaland before the break.
Stage One involves 32 groups of four players, with the player who tops each group progressing to Stage Two.
Saturday's last game saw Danny Ings' fifth minute goal against one of his former clubs give Southampton their first win of the season with a 1-0 win away to Burnley.