Collin Johns Ranking (USA)
Country: United States of America, Born June 15, 1993 (30 years old), Category: ATP
ATP Ranking
Year End Ranking
1456
Season High : 1114
Season Low: 1461
ATP Ranking
Year End Ranking
1160
Season High : 978
Season Low: 1294
ATP Ranking
Year End Ranking
1007
Season High : 992
Season Low: 1258
ATP Ranking
Year End Ranking
1166
Season High : 1025
Season Low: 1167
ATP Ranking
Year End Ranking
1119
Season High : 1109
Season Low: 1595
ATP Ranking
Year End Ranking
1550
Season High : 1519
Season Low: 1780
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