Career
Turning his attention to the English Public boards, he competed in four World Professional Darts Championships during the 1980s. He failed to qualify again for the World Championship, but following the creation of the World Darts Council (now Personal Digital Cellular) - a separate version of the World Championship - started up in 1994. There was initially a heavy reliance on American players to make up the contingent of competitors - and Umberger appeared at the 1994 and 1995 WDC World Championship, but did not progress beyond the initial round robin stage.
The WDC had also started the World Matchplay in 1994, with Umberger beating Cliff Lazarenko in the first round.
He lost out to fellow American Larry Butler in the second round. Umberger also appeared at the 1995 and 1996 World Matchplay events, losing in the first and second rounds respectively.
1977 - Playing with Rick Ney, "Primrose" Pete Polinsky, and Mike Maurer
1979 - Playing with John Bobby and Lee Bredbenner
1980 - Playing with John Bobby and Lee Bredbenner
1990 - Playing with Rick Ney and Rick Koslusky
BDO International
1981: 2nd Round (lost to Cliff Lazarenko)
1982: 1st Round (lost to Doug McCarthy)
1983: 2nd Round (lost to Tony Brown)
1985: 1st Round (lost to Alan Glazier)
Personal Digital Cellular
1994: failed to qualify past group stage. 1995: lost both group games.