The Ralph Beckett-trained Cubanita collared Sajjhaa in the dying strides to claim the Betfred EBF Gillies Fillies' Stakes at Doncaster.
Dropping from Group One to Listed level, Godolphin's highly-rated Sajjhaa was sent off the 7-4 favourite and looked to have sealed it when Mickael Barzalona swept to the front approaching the two-furlong pole.
But her stride was shortening just as Cubanita's abundant stamina was kicking in entering the distance, and Jim Crowley's mount (8-1) was half a length to the good as they flashed past the line.
The lightly-raced maiden winner Reckoning ran on encouragingly to fill the places under champion jockey Richard Hughes.
Crowley said: "It's been stop-start with her this season so hopefully she'll stay in training next year, fingers crossed. I got a good trip round. They went a good gallop and everything went well in the end. I think she'll get a mile and a half. The last furlong was her best furlong."
Godolphin clinched the owners' championship with a double through Mar Mar and Muharrib, both trained by Saeed bin Suroor.
Mar Mar (7-2) showed a neat turn of foot two furlongs out to easily win the Betfred Cock O'The North EBF Maiden Stakes by four lengths under William Buick.
"She's a very honest filly, but she was a bit unsettled and keen last time, so we thought visors would help. She'll be a nice seven-furlong filly for next year," said Godolphin's representative Diana Cooper.
Muharrib (5-1) led over a furlong out under Barzalona to defy top weight in the Betfred 'The Home Of Goals Galore' Nursery.
Cooper said: "He's a very bonny horse who has thrived all season. He'll have a nice holiday now and he's one to look forward to. He's very honest and game and gives his all every time."
22 August 2014Enterprise likely for Eagle
Atzeni new Qatar number one
Hughes flicks Power switch
Ab fab in Listed contest
Telescope going international
Mimosa clinches Cup glory
Glenard comes good at York
Fiddes living dream in Gimcrack
Kazeem in Winter wonderland
Cat camp wary of 'bounce'
Byron well versed for Renaissance
Punters' Pall ready for Ebor
Great War out of Gimcrack
Reserves denied Ebor run
Applause sent to the Tower
McCoy records fastest century
Tapestry weaves Taghrooda downfall
Spencer to hang up riding boots
Mukhadram 'sore' after York
Slade 'unlikely' to run at Haydock
Tiggy takes Lowther by storm
Haggas strikes again at York
Signs good for big Estimate run
Power chases Nunthorpe double
Yar makes Ebor cut
21 August 2014Tapestry floors Taghrooda at York
Spencer announces shock retirement
Long bans for Cooper and Gagan
Abandon makes Hopeful return
Alga goes for Gimcrack glory
O'Brien keen on Champion double
Brooch dazzles in Ruby
Game Postponed dominates Voltigeur
Hill scratched from Leger prep
Dutch delivers in Acomb
Blaine works his magic
Byron bids for Curragh Renaissance
Smullen sweet on Anthem chance
Taghrooda ready to wow York
Power heads Nunthorpe field
20 August 2014York enthralled by wizard of Aus
Zarkandar in Ces reckoning
Gosden ponders Cambridgeshire plan
Gal set for easy spell
Estimate leads Lonsdale eight
Glance seeking Lowther glory
Tasaday ready for York test
No tactical concerns for Tag team
Toast ride relinquished by Spencer
Blue is the colour for McCreery
Hill in peak form for Voltigeur
Certain claims clear-cut success
Prince aiming for Acomb glory
Champagne target for Belardo
Telescope team eye Group One glory
Australia camp expect trip to suit
Anthem takes Lowther test
19 August 2014Duke aiming for York reign
Tag tops Oaks field
Matron on Thawaany agenda
Halford anticipates Tosc boost
No hurry for Panama plan
Millman plots weekend Celebration
Overbury role for Dunaden
O'Brien calls on two for Oaks
Newmarket entry for Abandon
O'Brien has some Australia concerns
Pale Mimosa at Ebor summit
Baitha remains in Gimcrack hunt
Anodin fired up for Foret
Moore given Hill role in Voltigeur