Complex sentence: Gilchrist and Andrew Symonds are the only players to score a century in a match with Symonds achieving the highest number of runs in a single match which is, 117 runs of 53 balls.
Split into simpler sentences: Gilchrist and Andrew Symonds are the only players to score a century in a match. Symonds holds the record of achieving the highest number of runs in a single match by scoring 117 runs of 53 balls.