Wrexham suffered a setback in their quest to win promotion from League One, losing 2-1 at home to in-form Leyton Orient.
Phil Parkinson's side got off to a positive start, Ollie Rathbone turning in James McClean's corner to give his side the lead after 15 minutes, but weren't able to press home their advantage.
Orient were a threat on the break all evening and fashioned an equaliser on the half-hour mark when Darren Pratley's pull-back was met by Charlie Kelman to score his 14th goal of the season.
And the east Londoners had the lead for themselves five minutes after half-time when Tottenham Hotspur loanee Jamie Donley produced a moment of Premier League quality, striking a sweet volley into the net from the edge of the box after a corner was cleared.
Wrexham continued to huff and puff but struggled to create too many clear openings, despite Pratley seeing red for a second yellow card late in the game.
Orient have now won 12 of their last 15 games and are only five points behind their hosts in fifth.