In the NBA regular season, the Spurs defeated the Raptors 121-103 and started the season with 4 consecutive victories.
The last time the Spurs started a season with 4 wins and 0 losses was in the 2017-18 season. Their 4 wins and 0 losses at the beginning of the season also tied the team's record.
It is worth mentioning that the Spurs have never won 5 consecutive victories since the 2018-19 season. The Spurs will face the Heat at home on October 31st.