Hiromasa Koyama Ranking (JPN)
Country: Japan, Born December 13, 2007 (16 years old), Category: Junior, Boys
ITF Ranking
342
0
Season High : 303
Season Low: 342
ITF Ranking
Year End Ranking
445
Season High : 445
Season Low: 1689
ITF Ranking
Year End Ranking
1689
Season High : 1393
Season Low: 2092
ITF Ranking
Year End Ranking
2038
Season High : 2038
Season Low: 2312