The former Tottenham and Chelsea boss has been in charge of the US since September 2024.
F1 bosses have been forced to rejig the 2026 schedule due to the ongoing conflict.
The 23-year-old sealed victory on the second of two play-off holes.
Steve Borthwick’s team lifted their total of yellow cards for 2026 to 15 in eight Tests.
Root has begun a second spell in the role, replacing Ben Stokes.
Classy pair part of weekend entry as track returns to racing following discovery of hole in May.