Story highlights Ted Cruz won 10 of 13 delegate slots at the Virginia GOP convention, which could help him in the event of a second ballot in Cleveland

Harrisonburg, Virginia (CNN) Ted Cruz dominated yet another delegate selection process over the weekend, winning 10 of the 13 at-large delegate slots available at the Virginia state GOP Convention -- delegates the Texas senator hopes he can use in a second ballot at the Republican National Convention in July.

A delegation made up of 10 Cruz supporters and three Donald Trump supporters, proposed by the convention's nominations committee, passed on the first ballot late Saturday.

Since Virginia's delegates are unbound after the first ballot in Cleveland, the selection of a preponderance of Cruz backers to fill those delegate slots means that most of them could flip their votes to Cruz if Trump, who is less than 237 delegates away from clinching the 1,237 he needs to win, fails to get there on the first ballot. So while Trump won the state's primary on March 1 with 34% of the vote -- far ahead of rivals Cruz at 16% and John Kasich at 9% -- the results from Virginia mean his votes from the state's delegation could evaporate later on.

Early on at the state's convention over the weekend, the Republican Party of Virginia was expected to put up a slate comprised of a mix of each presidential campaign's supporters. But support for the state party wavered once some Cruz supporters began pushing for a slate made up entirely of Cruz people, a scenario that has played out at other state conventions like in Maine and Arizona to the advantage of the Cruz campaign.

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