Issei Okamura defeated Tennyson Whiting 6-4 6-4 in the M15 Sintra 1 qualifying round of 64 on hard.
Okamura I. took it in straight sets.
Issei Okamura beat Tennyson Whiting 6-4 6-4. Umpiry, "Issei Okamura vs Tennyson Whiting — M15 Sintra 1 Qualifying Round of 64", https://umpiry.com/match/2020-09-06/okamura-vs-whiting-m15-sintra-1-q64?utm_source=cite (as of 6 September 2020).