Hour four began with an almost-immediate caution, as serial LMP2 spinner Lance Willsey lost control again in the sole #33 Ligier approaching Turn 6 and almost took out Colton Herta’s then second-placed #10 WTRA Acura.
Under the yellow, Dixon stayed out while Aitken pitted – giving himself a 30% energy advantage. They held a Caddy 1-2, with Yelloly best of the race after a forceful pass on Hartley’s #10 Acura at the Bus Stop.
