Hiromasa Koyama Ranking (JPN)
Country: Japan, Born December 13, 2007 (17 years old), Category: ATP
ATP Ranking
1809
-13
Season High : 1553
Season Low: 2127
ATP Ranking
Year End Ranking
1954
Season High : 1925
Season Low: 1960
ITF Ranking
275
-22
Season High : 76
Season Low: 275
ITF Ranking
Year End Ranking
134
Season High : 134
Season Low: 414
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
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