Delroy Cambridge is one good round away from winning the Gosling's Invitational, and it's likely to cost him $4,500.

The Senior European Tour professional shot a third-round 66 at Belmont Hills yesterday to move to 12-under par for the tournament, two shots ahead of Kirk Hanefeld who registered a steady 67 to move to 10-under.

Cambridge's round was his third sub-par score of the week, and he is odds-on favourite to win the tournament. And yet Hanefeld could finish second and still walk away with the greater prize.

While the American opted to play in the main event, with its $9,000 winners cheque, Cambridge was struggling with his game prior to the event and chose the senior division and its $4,500 prize fund.

Defending champion Joe Horowitz, meanwhile, will need a miracle to make even half that after he fell apart yesterday, struggling to a four-over par 74, and dropped from joint second to fifth.

After a front nine of four bogeys and three birdies, Horowitz crumbled on the way home, carding four consecutive bogeys from 13 to 16, and had one of those days when nothing went right. A succession of missed putts, duffed chips and wayward approach shots sent him tumbling down the leaderboard.

Cambridge had no such difficulties, rattling off four birdies in five holes on the back nine, a performance that would suggest a lesson in Spain to iron out some kinks in his swing is paying instant dividends.

"I played in Europe and I wasn't playing very good over the last couple of weeks, and after my last tournament in Spain this guy gave me a little lesson and was looking at my swing," he explained.

"I've been trying to work on that and it's turned my ball flight around, and it's been a bit different so I'm a little more comfortable with it, just not 100 percent comfortable.

"If I was playing good now, there would be no reason why I wouldn't be playing in the Open division. If I was playing good I'd play against the juniors but I'm not playing that good, but that's the way things work out sometimes. You don't feel like you're playing that good, and you're a little bit more comfortable, and you have less opponents to deal with (in the senior division)."

While Cambridge was building a slender lead and Horowitz was plummeting down the leaderboard, Hanefeld was steadily going about his work, building a five-shot lead over third-placed Brian McCann and keeping Cambridge in his sights in the process.

"It was a bit of a slow start," said Hanefeld. "On the front nine nothing happened, I made bogey on the first hole and a birdie on six and all the rest were pars.

"I had a couple of decent pars saves but there wasn't too much happening, but I made some good birdies on the back, on 12, a real good one on 15, and then one on 18 to close out the day.

"Delroy's got a two-shot lead, but he's within striking distance. I'm sure we'll both play well tomorrow and it'll go right down to the end."

Meanwhile in the amateur event, Daniel Augustus is on course to retain his title after a third round 73 took him to five-over for the tournament, four shots clear of fellow Bermudian Camiko Smith. And Jeffrey Lindo looks set to defend his senior amateur title after also posting a 73, putting him ten shots clear of Glenn Kelley.