The head-to-head record for Sri Lanka vs Oman is not provided in the given evidence. The article mentions that Viran Chamuditha will lead Sri Lanka in an Under19 World Cup, but it does not include information about the head-to-head record between Sri Lanka and Oman.
The article focuses on Viran Chamuditha’s appointment as the leader of the Sri Lankan team for the Under19 World Cup, highlighting his record as the Under19 World Cup record holder. However, it does not provide any details about the team’s past performances or head-to-head records against Oman.
As the evidence does not contain any information about the head-to-head record between Sri Lanka and Oman, it is not possible to provide a definitive answer to this question based on the given source.