This study investigated the relationship between gender, school type, school location, personality, and winning a medal among participants of the two largest student competitions in Indonesia, the National Science Competition (KSN) and the Entrepreneur-based Student National Competition (FIKSI), sponsored by the Indonesian Ministry of Education and Culture. Survey data were collected from 684 participants in KSN and 169 participants in FIKSI. The chi-square test and the logistic regression were employed using Jeffey's Amazing Statistics Program (JASP) ver. 13. The results revealed a substantial relationship between gender, school location, school type, and personality on winning a medal in KSN, but none in FIKSI. Results also revealed that male participants and participants from Java and private schools were more likely to win medals in KSN than female participants and participants from outside Java and public schools. This study also found that neuroticism has a statistically significant relationship toward receiving a medal in KSN.