Rodallega's goal gave Wigan a lead which lasted all of seven minutes
By Les Roopanarine
Johan Elmander stabbed home a close-range second-half equaliser to earn Bolton a point from a committed and entertaining contest against Wigan.
The Sweden international converted a knock-down from Matthew Taylor after a cross into the six-yard box caused mayhem in the Latics defence.
Hugo Rodallega had given Wigan the lead minutes earlier with an angled effort after a touch from Franco Di Santo.
Rodallega later headed wide, wasting a fine chance to give Wigan victory.
Despite squandering several opportunities, the Colombian - who was restored to the starting line-up after starting on the bench at Newcastle last weekend - was comfortably the home side's best player.
Yet Rodallega often flatters to deceive and, for all the vibrancy of his attacking contribution, Wigan will ultimately remember the match more for a nasty-looking injury to midfielder James McCarthy, who hurt an ankle in a clash with Fabrice Muamba.
Martinez encouraged by Wigan progess
Elmander's fifth Premier League goal of the season aside, Bolton will make the short journey home pondering their inability to capitalise on a confident start, and harbouring a justified sense of grievance about an offside touch from Di Santo in the build-up to Wigan's opener.
Both teams had an early sight of goal, and on each occasion the manner of the attack spoke volumes about their respective qualities.
In Bolton's case, the move was typically direct, Martin Petrov delivering a ball into the danger zone which Kevin Davies, muscling aside assorted Wigan defenders, headed wide.
It left the visitors' back four in little doubt that, despite Owen Coyle's addition of guile to the Trotters' trademark graft since his January arrival at the Reebok Stadium, Davies' physical presence remains integral to Bolton's approach.
The newly-minted England international underlined his importance soon afterwards, volleying a Gretar Steinsson cross just over the bar with his back to goal.
Minutes earlier, Rodallega had tried something similarly flamboyant at the other end, sending a volleyed bicycle kick over from Charles N'Zogbia's corner.
Like Davies' effort, Rodallega's contribution typified the nature of his team's approach, wily and wild in equal parts, inventive yet unpredictable.
Further evidence of those characteristics was soon forthcoming.
N'Zogbia, who had been having a quiet afternoon, suddenly popped up on the right, from where he flashed a dangerous effort just wide. Rodallega, as is his wont, drifted in and out of the game.
For half an hour, it amounted to a fairly entertaining spectacle, at least by the standards of a Lancashire derby traditionally short on goals.
But then Muamba clattered McCarthy, who had been sold short by an Antolin Alcaraz free-kick, causing a lengthy injury delay which interrupted the game's flow.
McCarthy, who was replaced by Mohamed Diame after being carried off on a stretcher, was subsequently sent to hospital for a precautionary X-ray on his ankle, but Wigan regrouped well.
Rodallega was prominent either side of the break and twice threatened to break the deadlock, first with a low, long-range effort after a swashbuckling cross-field run from deep on the left, and then when he almost made Steinsson pay for his failure to cut out a straightforward pass from Diame.
Rodallega appeared to injure a hamstring following the first of those efforts, but any lingering doubts about his fitness were quashed by a well-constructed opener marred only by a touch of offside.
Wigan goal was offside - Coyle
N'Zogbia, carrying the ball out of defence, found Di Santo deep in opposition territory, and the Argentine - who appeared to be just ahead of the last Bolton defender - nudged the ball through for Rodallega to apply the finish.
Coyle was unimpressed by the perceived shortcomings of the linesman, but Elmander's goal soon restored a measure of calm in the Bolton dug-out.
Neither Chris Kirkland - who had conceded 10 goals in his only two previous appearances this season - nor his defenders dealt effectively with Stuart Holden's cross into the six-yard box.
An attempted clearance was sliced skywards and, with Kirkland prone, Taylor was the first to react, nodding the ball down for Elmander to jab home.
With parity restored, Rodallega should have scored the winner late on, but headed a seemingly unmissable chance across goal.
Ultimately, though, neither side did enough to deserve victory.
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