Australian cricketer Bill Ponsford made 429 runs to break the world record for the highest first-class score.

Cricket is a bat-and-ball game that is played between two teams of eleven players on a field, at the centre of which is a 22-yard pitch with a wicket at each end, each comprising two bails balanced on three stumps. Two players from the batting team, the striker and nonstriker, stand in front of either wicket holding bats, while one player from the fielding team, the bowler, bowls the ball toward the striker's wicket from the opposite end of the pitch. The striker's goal is to hit the bowled ball with the bat and then switch places with the nonstriker, with the batting team scoring one run for each of these swaps. Runs are also scored when the ball reaches the boundary of the field or when the ball is bowled illegally.

William Harold Ponsford MBE was an Australian cricketer. Usually playing as an opening batsman, he formed a successful and long-lived partnership opening the batting for Victoria and Australia with Bill Woodfull, his friend and state and national captain. Ponsford is the only player to twice break the world record for the highest individual score in first-class cricket; Ponsford and Brian Lara are the only cricketers to twice score 400 runs in an innings. Ponsford holds the Australian record for a partnership in Test cricket, set in 1934 in combination with Don Bradman —the man who broke many of Ponsford's other individual records. In fact, he along with Bradman set the record for the highest partnership ever for any wicket in Test cricket history when playing on away soil

In cricket, a run is the unit of scoring. The team with the most runs wins in many versions of the game, and always draws at worst, except for some results decided by the DLS method, which is used in rain-shortened limited-overs games when the two teams have had a different number of opportunities to score runs.

First-class cricket, along with List A cricket and Twenty20 cricket, is one of the highest-standard forms of cricket. A first-class match is of three or more days scheduled duration between two sides of eleven players each and is officially adjudged to be worthy of the status by virtue of the standard of the competing teams. Matches must allow for the teams to play two innings each, although in practice a team might play only one innings or none at all.