Pablo Carreno Busta defeated Guido Pella 6-3 4-6 7-6 6-3 in the US Open round of 128 on hard. The result followed the form book — Pablo Carreno Busta came in leading the head-to-head 1–0, defending last year's round of 64. Pablo Carreno Busta extended the head-to-head to 2–0.
Carreno-Busta P. came through in four sets.
Carreno-Busta P. and Pella G. faced 4 of the same opponents in the last 12 months. Carreno-Busta P. went 3–2 (60%) against them, Pella G. 2–3 (40%). Carreno-Busta P. came out better against 2 of 3 comparable opponents, Pella G. against 0 — though 1 of those edges carries caveats (retirement).
Only 4 common opponents — small sample, treat as indicative.
Pablo Carreno Busta beat Guido Pella 6-3 4-6 7-6 6-3. Umpiry, "Pablo Carreno Busta vs Guido Pella — US Open Round of 128", https://umpiry.com/match/2019-08-26/busta-vs-pella-us-open-r128?utm_source=cite (as of 26 August 2019).