As a junior, he contributed to the school's first-ever win over a Southwest Conference team, by hitting a 30-yard field goal on the last play to defeat Baylor University 10–9.
He finished his college career third on the school's all-time scoring list (255 points) and owning most of the kicking records.
[3] Boniol was signed as an undrafted free agent by the Dallas Cowboys after the 1994 NFL draft on April 29.
In 1995, he missed the first 3 preseason with a pulled quadriceps in his right leg, forcing the Cowboys to make the unconventional move of keeping rookie Jon Baker as a kickoff specialist.
[5] He struggled in the third week against the Minnesota Vikings, missing a field goal and an extra point from close range, in game the Cowboys won 23–17 in overtime.
In 1996, he broke his own club record for the longest streak of consecutive field goals made with 27 (it was broken by Dan Bailey in 2014).
[6] He also tied an NFL record with 7 field goals made in a game, during a Monday night contest against the Green Bay Packers.
[11] On October 13, 1999, he signed with the Chicago Bears as a free agent, to replace an injured Jeff Jaeger.
[19] In 2016, he was hired as a senior special teams advisor at Mississippi State University, where he coached Logan Cooke and Jace Christman.
In 2019, he was hired by the Tampa Bay Buccaneers as an assistant to special teams coordinator Keith Armstrong.