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International Registrations

International Participation in MAA AMC for 2020-2021 Competition Cycle

For the 2020-2021 competition cycle, the MAA AMC competitions will only be offered to schools with a USA, Canada, APO/FPO/DPO mailing addresses and schools registered with one of our AMC international partners. This list only shows confirmed international group leaders. We will be updating it periodically as we confirm additional leaders.

The MAA is working hard to broaden the scope and reach of the AMC program in the future.

International Group Leaders for 2020-2021

Adewale Solarin


Adewale Solarin is a professor of mathematics, COMSATS Distinguished Professor of Mathematics; President of AMU Pan-African Mathematical Olympiads Commission; Member of the Scientific Board, IBSP-UNESCO in Paris, France; Chairman of the Board of Trustees for the Association of Nigerian Women in Mathematics; former Director/CEO of National Mathematical Centre in Abuja, Nigeria; former President of African Mathematical Union (AMU). Adewale was the brain behind the establishment of International Academy for the Gifted Ltd/Gte (IAGIFTED) in 2008 as a respond to the clarion call from African Academics in Diaspora for him to extend his mentorship of young Africans in the universities to the lower level to catch them young.

Adrian Zanoschi


Adrian Zanoschi has been a math teacher since 1990 at Colegiul Negruzzi, which is one of the best high-schools in Romania’s second city of Iași. He has trained math students from the 5th to 12th grade for regional, national and international Olympiads and contests since 1984. Among his students there are 115 participants to the final round of National Mathematics Olympiad, 4 participants to the Junior Balkan Mathematical Olympiad, 1 participant to the Balkan Mathematical Olympiad (senior) and 1 participant to the European Girl Mathematical Olympiad. Adrian was the team leader for one of the Romanian teams to BIMC 2013, KIMC 2014, INIMC 2017 and BIMC 2018 (International Mathematical Contests which took place in Bulgaria, Korea and India respectively). He co-authored more than 20 Mathematical books for students. Adrian has been leading AMC contests in Romania since 2012 and has been an IGL for the past 4 years.

Brad Hart

Albania, Lithuania, Turkey

Brad Hart's background is in physics. He teaches introductory physics regularly for college students. He also enjoys teaching math and computer science for gifted students. Brad lives in California with his family.


Ertugrul Tarhan

Kenya, Tanzania

Ertugrul Tarhan is a mathematics teacher, IMO representative of Tanzania, PAMO leader of Tanzania, deputy director of Feza Schools (education department), and a math Olympiad trainer.


Haris Gavranovic

Bosnia and Herzegovina, Croatia, Montenegro, Serbia

Haris Gavranovic holds Bachelor diploma in Mathematics, MSc and PhD degrees in Operations Research Combinatorial Optimization. He is a member of INFORMS (USA based) and ROADEF (France based) operations research societies and has been involved in a several international research projects dealing mainly with optimization and computation. Haris scientific interests lay in designing and developing a high-performance optimization models and solutions for (discrete) real world problems using linear and integer programming, search based metaheuristics, constraint satisfaction techniques and AI. He received several international scientific prizes such as junior winner of ROADEF challenge 2001, winner (in a team) of ROADEF/EURO/Google challenge 2012, and winner (in a team) of ROADEF/EURO/SNCF challenge 2014 (, and Google Faculty Research Award in 2014. He enjoys in the activities to promote science, in particular Computer Science and Mathematics among youngsters in elementary and secondary schools. He is involved in the organization of Olympiads in Informatics in Bosnia and Herzegovina for the last fifteen years. He introduced also popular international challenges Kangaroo Mathematics and Bebras Informatics in Bosnia and Herzegovina. In these popular challenges more than 40.000 youngsters from 300 schools from all over Bosnia and Herzegovina took part.

Jiangang Yao

Hong Kong, Macau

Jiangang Yao was fascinated with mathematics as a child and started his involvement with mathematical Olympiads since then. He won the gold medal with full marks in the 35th International Mathematical Olympiad and got math PhD degree from UC Berkeley. He has been the coach for mathematical Olympiad at various levels for 30 years, and has written a few popular mathematical Olympiad books in Chinese. Now Dr. Yao is a fixed income portfolio manager in Hong Kong, and voluntarily organizes AMC and Math Kangaroo in Hong Kong and Macau.


Justin Freeman

Belgium, Czech Republic, France, Germany, Hungary, Netherlands, Slovakia, Sweden, United Kingdom

Justin Freeman teaches IB and AP Mathematics at American School of The Hague in The Netherlands. He is originally from New Hampshire, and he taught for many years at a boarding school there before moving to Europe. At both schools he has coached both cross country running and competitive mathematics.


Le Anh Vinh




Makhamadkhan Ishmatov


Makhamadkhan (Mamat) has participated at International Mathematics Olympiad (IMO) in 2005, 2006. He enjoys solving Olympiad problems and organizes math camps for talented students in Kyrgyzstan. Currently, Mamat is a team leader of Kyrgyzstan at IMO.

Marjorie Roxanna Ramos Velás

Dominican Republic

Marjorie Ramos is an international education professional with a Master's degree in Higher Education Administration from Universidad de Alcalá, in Spain, and currently in love with being a College Counselor for junior and senior high school students. Experienced study abroad and exchange programs coordinator, skilled in teaching, college application development, student recruitment, and standardized test management and administration.

Michael Vamvadelis

South Africa



Misael S. Fisico




Patrick Yoo

South Korea

Patrick Yoo is the Director of Korean Gifted Students Evaluation Association (KGSEA), Director of KGSEA Math Circle, Team Korea Coach of American Regions Math League (ARML), and Committee Member of World Mathematics Team Championship (WMTC). He holds a B.A. in Philosophy of Religion, Methodist Theological University.



Penny Chow

Australia, Cambodia, Indonesia, Israel, Laos, Malaysia, Myanmar, Thailand, Singapore

Penny Chow has been engaging students in mathematics competitions such as the American Mathematics Competitions for more than decade in South-east Asia. She believes that one of the keys to opening up up access to higher-level mathematics is to engage students in the math that they do and what better way than through a competition whereby they can learn problem solving skills, flexibility of thinking and analytical skills. Penny Chow is the co-founder of the math magazine-Math Oasis, is a writer, translator and Toastmasters. When she is not busy chasing students to collect their awards, she enjoys playing with Maine-coon cat-Steco.

Peter Shiue


Peter Shiue received has a B.S. National Taiwan Normal University, 1964, and in 1971 he received a Ph.D. Southern Illinois University, Carbondale. He was a math professor at various universities in Taiwan in the 1970s and is a professor of mathematics at the University of Nevada, Las Vegas since 1985. Peter is the recipient of: (1) Italian National Research Council Fellow 1970-1971, (2) Humboldt Foundation, Germany Fellow, 1973-1974, (3) UNLV, College of Sciences Distinguished Teaching Award, 1989, (4) UNLV Barrick Distinguished Research Scholar Award 1996, (5) UNLV College of Sciences Distinguished Teaching Award 2000, (6) Distinguished Alumni of National Taiwan Normal University, 2011. He published 1 book in English, 10 books in Chinese, and more than 100 refereed research articles (mostly in the USA).

Regis Prado Barbosa


Regis Barbosa participated in Brazilian Mathematical Olympiad (OBM) earning five gold medals. Since 2010 he is involved in Brazilian training for international mathematical contests. He is author of many problems of Brazilian Mathematical Olympiad. He was an IMO silver medalist in 2007 and 2008, and an IMO bronze medalist in 2006. He was an IMO Coordinator in 2017. Regis then became the team leader of the Brazilian IMO team in 2018. And he is a member of the Brazilian Mathematical Olympiad (OBM) commission.

Sam Xinchen Sun

New Zealand

Sam X. Sun, PhD in Applied Maths from Peking University, is the managing director of Whampoa Academy in New Zealand (est. 2007), which guides students to prepare various college entrance examinations as well as mathematics competitions. Many high school graduates who have ever studied in Whampoa Academy have been accepted by prestigious universities in the world.



Simon L. Chua


Simon Chua is a recipient of the following awards: Paul Erdos Award (2006) presented by the World Federation of National Mathematics Competition in 2006 for his significant contribution to the enrichment of mathematics learning in the Philippines; the Aryabhatta International Award (2007) presented by the Indian Government for his contribution to research and innovation in teaching mathematics to school children; and BH Neumann Award (2011) presented by the Australian Mathematics Trust for his significant contribution to the enrichment of mathematics learning in Australia. The Department of Science and Technology - Science Education Institute in the Philippines awarded him the Gawad Leadership and Innovations for Development Relevant to Science Education (2014) for showing a strong leadership in the training of elementary and high school students in basic and advanced mathematics, and in Philippine participation in international mathematics competitions.

Syam Chandra

Bangladesh, India, Nepal, Pakistan, Sri Lanka

Mr. Chandra has been leading organizations and working with students for more than a decade; he is heavily experienced in guiding students, as well as counselling and consulting on several areas including university admissions in the United States. As the Senior Counsellor with TLUPS and the academic director of Enrichment programs in Cedar Rapids Community School Board, and as a researcher associated with the consortium of universities and colleges in Iowa, Chandra spends time in Iowa teaching, conducting research and working with educators and policy makers. He is also an invited fellow with the Canadian Parliament Teachers Institute. He is the lead editor of the Transitions in Global Education research journal. You'll find Mr. Chandra's articles published in such newspapers as The Hindu, Huffington Post, the Indian Express, and Hindustan Times. He is accredited with the American School Counselling Association as designated College admission specialist as well as an ACA accredited stress and strain management counselor and as a career guidance practitioner and base his practice out of Boston and Iowa. He lives in WestDale Village, Canada with his family.



This is not the final list of International Group Leaders for 2021-2021.

If you are interested in being an International Group Leader for the 2020-2021 cycle, please reach out to us at