Good result for U's side.
What followed was a largely scrappy affair, as both sides struggled to produce football of any fluency and there was little in the way of clear cut chances at either end before the half.
A key point of the match came shortly after the break when the home side were awarded a penalty for a clear foul by U's defender Megan Jiggins in the box but Runnacles dove sharply to her left to brilliantly turn away Sam Pittuck's spot kick and keep Colchester in the game.
Karissa Rodney broke purposefully down the right flank and delivered a fine cross which was met by youngster Gemma Codling who turned a sublime volley into the roof of the net.
Runnacles' save along with a triple substitution on the hour mark seemed to spur Colchester into life, and it was two of the newly introduced players who conspired to put the U’s on level terms in the 71st minute.
A succession of corners in the final minutes frustratingly could not produce a winner for the U's who had to settle for a point.
From then on it was the visitors who undoubtedly enjoyed the better of the remainder of the contest as first Rodney and then Hannah Gowland drew fine saves from Spurs 'keeper Joanne Ayr.
Colchester's next opportunity to secure their first win will come on Sunday 30th September against newly promoted Lewes Ladies FC in a home encounter at Stanway Rovers Hawthorns ground with a 2pm kick off.
Colchester: Runnacles, West, Clements, Heaslip, Jiggins, Southgate, L. Mellors (Rodney 60), Guyon (Gibbs 60), Gowland, Rushen, Nash (Codling 60)