Switzerland won its third straight game without a loss on Monday at the 2013 World Hockey Championship.
The Swiss, coming off a stunning 3-2 shootout win over Canada on Sunday, scored three times in the third period to rally for a 5-2 victory over the Czech Republic on Monday.
Simon Moser scored the tying goal at the 5:47 mark of the third and Simon Bodenmann snapped the deadlock with 6:38 remaining before Reto Suri sealed it with an empty-netter.
Switzerland also beat Sweden on Friday and sits atop Group S. The Swiss have played most of the tough competition in their group and still have games against Slovenia, Denmark, Norway and Belarus remaining.
Jiri Hudler tallied both goals for the Czechs, who lost to Sweden on Saturday after beating Belarus in their opener.
Also in Group S action, Sweden defeated Belarus by a 2-1 margin.
In Group H play, Slovakia edged Germany, 3-2, and Finland beat France by a 3-1 margin.