On a day when the leading players made a good move, Chawrasia, the lone Indian, had three bogeys in the last four holes and slipped from overnight tied-35th to tied-64th at one-under 209 for 54 holes.
Tournament host Lee Westwood, who won the Hero Challenge to start off the week, turned in 32 to share the lead as Rory McIlroy made a charge through the field on day three.
Westwood, three-under through 11 holes, had seven more holes to play, while Hatton was even par for 11. That left him a shot ahead of Paul Dunne (65 in third round), Scot Richie Ramsay and England's Graeme Storm -- all of whom still had to finish their third round. They were all 11-under.
But McIlroy carded a 64 to sit at 10 under and share the clubhouse lead.
Westwood was attracting big crowds and they had something to cheer about when the 23-time European Tour winner put in a superb round, which had some more way to go.
Matthew Fitzpatrick and Chris Wood were in the clubhouse three off the lead.
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