Boro were without a handful of first-team players against the non-league outfit, yet Neil Warnock was still able to name a strong side for the fixture.
Former Bristol City forward Jamie Paterson, who is on trial at the club, started his second friendly match for Boro after playing in the 2-1 win over Plymouth last week.
Defender Sol Bamba, who has also been training with Boro, came off the bench in the second half when the Teessiders made wholesale changes just after the hour mark.
Things appeared to be going to plan for the visitors when Dael Fry headed them ahead inside six minutes, yet goals from York duo Mackenzie Heaney and Mark Beck before half-time turned the game on its head.
Here’s how each Boro player fared.
17. Hayden Hackney - N/A
(for Howson, 64) Quick to try and close the ball down. Racked up some passes in midfield. N/A Photo: Warren Little
18. Connor Malley - N/A
(for Morsy, 64) Got on the ball and sprayed a few passes out to the flanks from midfield. N/A Photo: JPI Media
19. Nathan Wood - N/A
(for Fry, 64) Conceded one cheap foul on the edge of the area but wasn’t overly troubled at the back. N/A Photo: Stu Forster
20. Jack Robinson - N/A
(for Dijksteel, 64) Operated on the left flank which allowed Jones to push forward in the second half. N/A Photo: Pool