The Under-16 winger was one of four schoolboys in the starting line-up alongside fellow Under-16s Andros Townsend and Yaser Kasim while Under-15 midfielder Dean Parrett made his debut.
Obika was in the right place at the right time to tap home from Daniel Hutchins' pass as the lads came from 1-0 down to grab a point.
Coach Alex Inglethorpe reported: "We went a goal down early on, perhaps a little inexperience in there - Reading played a diamond formation with a player behind the front two and he was the one that got away - but apart from that we pretty much controlled the game.
"After the goal we kept passing and playing and eventually got our rewards when Daniel Hutchins intercepted a pass from the goalkeeper and slid it across from Jon Obika to score his first goal for the Under-18s.
"We created lots if chances and I think we’ve probably out-shot most of the teams we’ve come up against.
"Credit to Jonathan, he’s an Under-16 winger playing up front for the Under-18s and he gave a very good account of himself. Dean Parrett also made his debut, an Under-15 in midfield, Andros Townsend and Yaser Kasim also played, so we had three Under-16s and one Under-15 in the starting line-up and full credit to them."
Spurs U18s: Stroud, Hughton, Martin, Kasim, Mills, Archibald-Henville, Hutton, Hutchins, Obika (Smith, 70), Parrett (Cox, 75), Townsend (Asajile, 85). Unused sub: Butler.
Jonathan Obika scored his first goal for our Under-18s as we drew 1-1 against Ipswich Town at the weekend.