Background: A systematic and comprehensive mental training program to enhance athletes’ mental toughness is critical. The aim of this study was to develop and validate a set of athletes’ systematic mental training programs. Methods: A mental toughness training program was developed, and the validity and reliability were tested on experts, practitioners, and athletes. Training program was analyzed using content validity index (I-CVI and S-CVI) and modified Kappa (k*). Furthermore, estimation of reliability of mental training model was analyzed by internal consistency approach with Cronbach’s alpha and inter-rater reliability (IRR) approach by using intraclass correlation coefficients (ICC). Result: A mental toughness training circle (MTTC) was successfully developed with four sections: general preparatory, specific preparatory, precompetitive, and competitive with 11 mental skills (positive thinking, mental log, goal-setting, breathing, relaxation, concentration, self-talk, mental imagery, leadership, managing anxiety, and managing emotions). Validation assessment found that the I-CVI and S-CVI values (S-CVI/Ave and S-CVI/UA) were 1.00, each suggesting excellent content validity. The modified Kappa value (k*) was 1 and categorized as excellent. The results of the reliability test using Cronbach's alpha showed that a value was in the range 0.723 to 0.835 with an overall value of 0.803. The results of the ICC analysis also confirmed that MTTC had a very high reliability coefficient value of 0.803. In addition, there was no significant difference from respondents’ assessment as proved by obtaining value of F=0.754 with a p=0.644 (>0.05). This suggested that respondents tend to be consistent in assessing MTTC as a mental training set which was categorized as relevant (scale 3) or very relevant (scale 4). Conclusion: MTTC which has four sections with 11 mental skills is a set of mental training programs that have high quality. Further studies to validate this program in a bigger sample size is required.

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Petanque sports in Papua, especially at the university level, have given a huge contribution because it has been involved in the National Students Sports Week (in Bahasa: POMNAS) event, the National Sports event, and other sports event in Indonesia. Most of the athletes were students from the Faculty of Sports Science at Cenderawasih University. However, as time goes by the number of Petanque athletes is decreasing. This study aims to assess how the interest of sports science students at Cenderawasih University in the Petanque sports. This is a descriptive statistical survey with a single variable, namely sports science students' interest in Petanque sports. The sample was selected using quota-accidental sampling, accounting for 175 students. A questionnaire was used to determine the interest of sports science students in Petanque sports. Furthermore, the data obtained were analyzed using descriptive analysis techniques with categorization which were then presented into percentages. Results of this study show accounted for 96 out of 175 respondents (55%) were interested in Petanque sports. In conclusion, the interest of sports science students in Petanque sports was high. Further studies with a larger sample also socialization about Petanque sports are needed conduct to promote and increase students' interest eventually sports achievement in Petanque sports.