1. FC Kaiserslautern scored three second-half goals to overcome a halftime deficit and defeat Greuther Furth at the Sportpark Thomas Ronhof.
The Shamrocks took the lead after 13 minutes through Tobias Raschl, but goals from Philipp Hercher, Mike Wunderlich and Kenny Prince Redondo ensured all three points for the Red Devils.
With the victory, Kaiserslautern are up to fourth in the 2. Bundesliga table, having taken ten points from their first five games of the season while Furth, relegated from the Bundesliga last season, sit 15th.
Story of the match
Kaiserslautern manager Dirk Schuster made two changes to the side that were defeated by Paderborn as Hercher replaced the suspended Hendrick Zuck and Redondo came in for Daniel Hanslik.
Just three minutes into the contest, right-back Simon Asta came up from his defensive position and took a shot that he could only place in the side netting.
Soon after, the Red Devils slowly worked their way into the match and after good work in the build-up play by Erik Durm, Terrence Boyd and Wunderlich, Hercher made a mess of the chance.
Three minutes after that, Furth opened the scoring. Armindo Sieb carried the ball into the penalty area and he spotted Raschl, who finished from close range at the far post.
The hosts then went searching for a second, Dickson Abiama failing to capitalize on defensive miscues, Andreas Luthe denying Sieb and Timothy Tillman's pass to Abiama too short.
On the half-hour mark, the Shamrocks came close to doubling their advantage, Asta's shot from a corner ringing off of the post.
Six minutes before halftime, Luthe kept Kaiserslautern just a goal down as he made a fine reflex save from Furth captain Branimir Hrgota. Sieb followed up by narrowly missing.
The Red Devils should have equalized shortly after. Boyd had a shot blocked and the ball came to Redondo, his effort cleared off the goal line by Asta.
Marlon Ritter took the ensuing free-kick that Shamrocks goalkeeper Andreas Linde was able to handle to ensure the hosts took the lead into halftime.
Just 30 seconds into the second half, Kaiserslautern were level. Wunderlich played a ball from the left side to Hercher, who beat Linde to make it 1-1.
Durm then saw a shot blocked and Tillman cleared from Redondo and at the other end, Luthe stopped Raschl as the match became more open.
More good work down the left led to the Red Devils taking the lead. A lovely through ball from Redondo to Boyd and he found Wunderlich, who made no mistake when presented the opportunity.
Furth then attempted to hit back on the hour-mark, Tillman shooting too centrally and Jeremy Dudziak beating three defenders, but going off-target from a sharp angle.
More chances came to the hosts as within the space of a few seconds, Hrgota, Raschl and Ragnar Ache all saw shots blocked for an increasingly frustrated Shamrocks side.
Great individual work from Redondo led to Kaiserslautern's third. He intercepted Linde's pass that he was attempting to play to Max Christiansen and finished from ten yards away.
Substitute Julian Green was unsuccessful with his shot and Ache whistled one just past the Red Devils net in the final minute as the visitors continued their strong start to the season.
