Nishikori needed six match points to seal the win in two hours at the ATP Masters event held behind closed doors at the Foro Italico.
Dominic Dale, the world number 70, also reached Stage Two after topping his group with two wins and one draw.
Huang was not the only one who set a personal best on the first day of the Chinese National Athletics Championships. Liu Shiying also refreshed her personal best in women's javelin with 67.29m, beating world silver medalist Lyu Huihui in the last round.
The South American zone World Cup qualifiers were originally scheduled to begin in late March but were suspended because of the COVID-19 pandemic.
Tour rookie Zhao also collected five points from two draws and one win. However, the 17-year-old lost one more frame than Zhou in total.
The club, owned by Chinese businessman Jiang Lizhang, qualified for Europe for the first time in their history by finishing seventh last season, but their task is made more difficult with qualification decided over one game rather than over two legs as in previous campaigns, with the COVID-19 pandemic leading to a compressed calendar.
TEHRAN, Sept. 17 (Xinhua) -- The Iranian national soccer team have moved into the top 30 in the new FIFA world rankings, the Tehran Times daily reported on Thursday.
Although Qingdao Huanghai's Cordova Cleo converted a penalty with a low shot to the corner in the 31st minute, A Lan scored twice and helped Guoan turn the game around for the 2-1 victory.
LONDON, Sept. 16 (Xinhua) -- Arsenal's hopes for the new season have received a major boost with club captain, Pierre-Emerick Aubameyang signing a new three-year contract with the club.
The Baggies opened the scoring thanks to new signing Grady Diangana in the 10th minute, but Calvert-Lewin leveled with a back heel that was given after consultation with VAR.
With more eyes on the league last season, the commercial value of the product increased considerably. On the other hand, this rapid commercial growth has also led to a significant increase in player salaries, which has begun to put pressure on the finances of clubs.