According to the world men's singles tennis rankings as of April 20, Carlos Alcaraz is currently in 2nd place, 165 points ahead of the second-placed Alexander Zverev. However, the Spaniard is at risk of relegation this week.
If Zverev wins the BMW Open in Munich, Alcaraz will be forced to win the Barcelona Open to maintain his No. 2 position.
In case Zverev wins in Munich and Alcaraz to lose to Holger Rune in the Barcelona Open final, Zverev will have more than 5 points, thereby increasing the rankings.

Both players are far ahead of the players below. Zverev is currently 2,760 points ahead of No. 4 Taylor Fritz.
Ben Shelton will face Zverev in the BMW Open final. He is currently ranked 13th in the world. If he can beat Zverev, he will rise to 12th place, equal to the highest achievement of his career.
Rune will play Alcaraz in the final in Barcelona. The Danish tennis player has climbed 4 places to No. 9 thanks to this achievement, but will not be able to be promoted even if he wins against Alcaraz.