Abstract: Methods and systems of pari-mutuel wagering are disclosed to facilitate the wager construction process. In one method, patrons select runners, and betting options of selected runners are presented. In another method, a first wager is placed and other wagers are presented, wherein the additional wagers may include a runner of the first wager. Another method allows patrons to wager on a runner, wherein an area representing the runner is marked to indicate that this runner was selected on a previous or in the current wager. In another method, a portion of a wager is patron selected and a portion of the wager is suggested by the betting interface. In another method, patrons may construct wager(s) for single or future races, or specify criteria for those wagers. In another method, runners are displayed in a table and patrons may select or deselect runner combinations by selecting cells within the table.