William Lambert (1779-1851) was at this point the best batsman in England and had been for the previous decade. His patron George Osbaldeston had brought him to senior cricket in 1801; through the Napoleonic War years and immediately afterwards he had been the leading professional batsman in nearly every match he played. The Sussex v Epsom fixture of July 1817 was a financial benefit match for Lambert himself — a custom of the period — staged at the new Lord's over four days. Sussex batted first and made 247, Lambert top-scoring with 107 not out. Epsom were bowled out for 73. Sussex's second innings turned into a procession: Lambert came in at the fall of the first wicket and stayed until the end, making 157 in a total of 281 for some. Epsom, set 456 to win, collapsed for 28. Sussex won by 427 runs, then the largest margin of victory in any senior match. Lambert's 107 and 157 made him the first batsman in any recorded match — first-class or otherwise — to score two centuries. The feat would not be repeated for sixty-six years. The accuracy of the scorebook (which is preserved in the MCC archives) has been confirmed by every subsequent historian. Underarm pitches of 1817 were rough, low-scoring affairs; centuries were rare; two centuries in a match by a single player on such a surface was an extraordinary achievement.