- May 9–10Cal State San Marcos Women's Track and Field Franson Last ChanceCal State San Marcos Women's Track and Field Franson Last Chance
- May 13–16Cal State San Marcos Women's Golf NCAA ChampionshipsCal State San Marcos Women's Golf NCAA Championships
- May 15–16Cal State San Marcos Baseball vs NCAA West RegionalCal State San Marcos Baseball vs NCAA West Regional
- May 15All dayCal State San Marcos Softball vs NCAA West Super RegionalCal State San Marcos Softball vs NCAA West Super Regional
- May 19–22Cal State San Marcos Men's Golf NCAA ChampionshipsCal State San Marcos Men's Golf NCAA Championships
- May 22–24Cal State San Marcos Men's Track and Field NCAA Division II Outdoor ChampionshipsCal State San Marcos Men's Track and Field NCAA Division II Outdoor Championships
- May 22–27Cal State San Marcos Softball vs NCAA ChampionshipCal State San Marcos Softball vs NCAA Championship
- May 22–24Cal State San Marcos Women's Track and Field NCAA Division II Outdoor ChampionshipsCal State San Marcos Women's Track and Field NCAA Division II Outdoor Championships
- May 23All dayCal State San Marcos Baseball vs NCAA West Super RegionalCal State San Marcos Baseball vs NCAA West Super Regional
- May 31 – Jun 6Cal State San Marcos Baseball vs NCAA ChampionshipCal State San Marcos Baseball vs NCAA Championship
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