Hiromasa Koyama Ranking (JPN)
Country: Japan, Born December 13, 2007 (18 years old), Category: ATP
ATP Ranking
1408
7
Season High : 1408
Season Low: 1415
ATP Ranking
Year End Ranking
1500
Season High : 1500
Season Low: 2127
ATP Ranking
Year End Ranking
1954
Season High : 1925
Season Low: 1960
ITF Ranking
Year End Ranking
384
Season High : 76
Season Low: 385
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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