Clarke, pictured, reached the milestone on Tuesday night when he came on as a substitute in his side's 4-2 win over Heybridge Swifts at King's Marsh.
The 28-year-old signed for the Suds at the start of the 2008-09 season from Great Wakering Rovers before quickly establishing himself as a tough-tackling midfield player and taking over the captaincy in October 2010.
But for a couple of bad arm injuries, Clarke would probably be nearer 400 games by now and proud officials say they are already looking forward to the Billericay-based electrician making 377 appearances to take Paul Beeston's record as their all-time appearance holder.
AFC Sudbury
Clarke came on to help Jamie Godbold's side maintain their push for the top of the table when they defeated bottom markers Swifts with a hat-trick from Sam Bantick and a fourth from Luke Callander despite being reduced to ten men.
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