Anand got off to a good start and won the first game of the best-of-four contest. The next two games were drawn before Leko levelled by winning the fourth.
Teenaged Indian Grandmaster D Gukesh upset Magnus Carlsen in the ninth round of the preliminary phase of the Aimchess Rapid online chess tournament, becoming the youngest to beat the World champion.
Grandmaster R Pragnanandhaa held tournament leader and defending champion Anish Giri of Holland to a draw on the day.
Viswanathan Anand played out a quick draw with eventual champion Veselin Topalov of Bulgaria to finish second in the Norway chess tournament, which is part of the Grand Chess Tour.
Former world champion Viswanathan Anand's hunt for an elusive victory continued as he played out a draw with American Wesley So in the fifth round of the Altibox Norway chess tournament, in Stavanger on Sunday.
Seventh-round loss gave me energy, motivation to aim for title: Gukesh
Five-time world champion Viswanathan Anand played out a draw with Li Chao of China to slip to the third position at the end of the third round of the 10th Tal Memorial Chess tournament, in Moscow.
The 47-year-old former World champion is taking some time off before he gets down to tournament play in St. Louis, United States, where the focus would be on Russian chess legend Garry Kasparov, who is making a surprise return to the game.
World champion Viswanathan Anand put an end to two straight losses and settled for an easy draw with Shakhriyar Mamedyarov of Azerbaijan in the seventh round of Tal memorial chess tournament in Moscow.
Five-times world champion Viswanathan Anand proved all his critics wrong and won the Candidates Chess tournament after settling for a draw with Sergey Karjakin of Russia in the 13th and penultimate round in Khanty Mansiysk (Russia) on Saturday.
Talented youngster Shiven Khosla held top seeded Grandmaster Vladimir Baklan of Ukraine to a creditable draw in the first round of Groningen International Open chess tournament in Groningen, The Netherlands.
GM Krishnan Sasikiran scored a much-awaited victory against GM Tomasz Markowski of Poland in the fourth round.
The fifth round defeat saw the India concede sole lead and slip to tied-second in the Morelia-Linares chess tournament.
Jharkhand's Pritam Singh beat the GM as unfancied players ruled the roost on second day of the Tata International chess championship.
Following is a look at some new and the more unusual events in the schedule of the 19th edition of the Asian Games:
Grandmaster and former Asian champion S P Sethuraman has knocked out former FIDE champion Ruslan Ponomariov of Ukraine in a big first round upset at the Chess World Cup in Tbilisi, Georgia.
R Praggnanandhaa was the best Indian with an overall third place finish
His semifinal match against Giri went up to 2am and a few hours later, he had to be at his school to take his 11th-class board examination.
Five-time World champion Viswanathan Anand made a disappointing start to his campaign at the Tradewise Gibraltar Chess Festival in Gibraltar after he was held to a draw by International Master Szidonia Lazarne Vajda of Hungary in the opening round of the masters section.
The five-time World champion played out his third draw on the trot as he signed peace with Etienne Bacrot of France in the third round of Grenke Chess Classic.
Indian Grandmaster P Harikrishna started his campaign by outclassing Eric De Haan of Holland in the first round of the Masters' section of Tradewise Gibraltar Chess festival at the Caleta in Gibraltar.
Five-time World champion Viswanathan Anand played out a fourth consecutive draw after signing peace with Peter Svidler of Russia in the seventh round at the Candidates Chess tournament in Khanty Mansiysk, Russia, on Friday. At the half-way stage of the tournament, Anand has 4.5 points out of a possible seven.
Young Indian Grand Master R Praggnanandhaa pulled off a huge upset as he outclassed former world champion Veselin Topalov in the sixth round of the 18th Gibraltar chess festival to record his fifth straight win, in Gibraltar. The 14-year old Chennai lad needed just 33 moves to put it across the Bulgarian. He had started with a loss against compatriot P V Nandhidhaa but since then he has been on a winning spree.
World champion Viswanathan Anand tried his best but could not penetrate the solid defences of Hikaru Nakamura of United States in the opening round of the London Chess Classic in London, on Thursday.
A summary of sports events and sports persons, who made news on Tuesday
A summary of sports events and sports persons, who made news on Friday
'I like to challenge myself. Competing against players much younger than me is something that I want to keep doing,' says Chess Legend Viswanathan Anand
A summary of sports events and persons who made news on Saturday
Five-time world champion Viswanathan Anand, with a double black, suffered a surprising first round loss at the hands of Hikaru Nakamura of United States in the Sinquefield Cup, in St Louis, the United States.
Summary of sports events and persons who made news on Wednesday
Summary of sports events and persons who made news on Sunday
A summary of sports events and persons who made news on Thursday
Defending champion Naomi Osaka of Japan was upset 7-5, 6-4 by Belinda Bencic in the fourth round at the US Open on Monday as the Swiss reached the quarter-finals for the second time.
Former World champion Viswanathan Anand shrugged off his first round draw to score a resounding victory over Matthias Bach of Germany in the second round of the Masters section of Tradewise Gibraltar Chess festival, in Gibraltar, on Thursday.
Continuing his dream run, Grandmaster Abhijeet Gupta held higher-ranked compatriot Pentala Harikrishna to a draw, while Viswanathan Anand kept himself in contention with an easy victory, in the sixth round of the masters section of the Tradewise Gibraltar International Chess Festival in Gibraltar, on Monday.
A summary of sports events and persons who made news on Monday