Nakagawa has a career high ATP singles ranking of world No.
As a teen, Nakagawa reached his highest ranking of world No.
9 in the combined singles and doubles ITF junior ranking system.
His junior tenure was highlighted and capped off by winning the boys' doubles title at the 2014 US Open where he alongside Australia's Omar Jasika defeated the Brazilian duo or João Menezes and Rafael Matos in straight sets 6–3, 7–6(8–6).
This biographical article relating to Japanese tennis is a stub.