As part of the release of Overwatch patch 1.10, Blizzard made a change in Assault and Hybrid maps to reduce and if possible, diminish draws as the Overwatch community has been complaining about it since Season1 of Competitive Play. Blizzard has succeeded in mitigating draws, but playing in maps like Hanamura and Temple of Anubis felt unfair. Therefore, the Overwatch team was flooded with complains once more which ultimately lead them to changing how the tiebreaker system works, again. (Read: Overwatch PTR patch 1.10.0 is now live, features Lucio changes and the end of draws)
Here is an example of the problem as stated by Overwatch Principal Designer, Scott Mercer in the Overwatch Forum:
"If Team A is on Hanamura defense and prevents Team B from ever gaining any capture progress, then when Team A is on offense they only need to reach 1% capture progress to win the game. This means Team B needs to always have someone contesting on the capture point, or they risk losing. Even with both teams aware of the new victory conditions and adapting appropriately, the instantaneous nature of the victory often resulted in confusion about what happened. Did the defenders not have someone on the point due to a mistake, or did the attacking Lucio pull off an amazing boop? This lack of clarity is not ideal, so we’re going to make a change in a future patch."
In order to solve this problem, the Overwatch team has decided to tweak the winning condition on Assault and Hybrid maps with the goal of reducing ties in mind. "Instead of needing to simply earn 1% more progress on an objective than the enemy team to break a tie and win, a team will also now also need to achieve a minimum of 33% progress," Mercer stated. Here are some examples on how the system works:
What these change means is that draws will occur more often with this system as compared to the present one, but it will still be significantly less than the 6% draw rate before the present system is implemented. The new tiebreaker system will be coming in a future patch although Blizzard did not specify which one. Let's just hope its the next patch.