Tsitsipas had to hold his nerve as Jarry dominated the first half of the two-hour, 58-minute match, but a strong second-set tie-break performance proved crucial before the Greek dominated the decider.
The top seed Fritz defeated Australian player Aleksandar Vukic 7-5, 6-7(5), 6-4 in the championship match to win the ATP 250 title in his first match on home soil since March.
Swiatek won the match and added it to her 15th career title. This season is turning out great for Swiatek as she already won Doha, Stuttgart, and Roland Garros.
It was the maiden title for the Goa franchise, which took home the sparkling trophy and Rs 75 lakh, whereas the runners-up were awarded Rs 50 lakh for their brilliant performance in the season.
Zverev, a confident 19-year-old who had defeated top seed Casper Ruud in the quarterfinals, gave Fils little opportunity to catch his breath with a hard-hitting, big-serving performance on the German clay in their first Lexus ATP Head2Head match.