Moneys stormed back from 0-2 down to win 3-2 with goals from Ryan Pennery, Chad Cornwell and Callum Laycock.
The Royals had won their previous 15 Premier Division fixtures at the On-Site Group Stadium this season.
Moneys’ victory allowed Horndean to cut Portchester’s lead to seven points, with the Deans still having two games in hand.
Pictures by Nathan Lipsham
1. Moneyfields boss Glenn Turnbull celebrates his side's stunning win
Moneyfields boss Glenn Turnbull celebrates his side's stunning win. Picture by Nathan Lipsham Photo: -
2. Portcehester's Scott Jones, right.
Portcehester's Scott Jones, right. Picture by Nathan Lipsham Photo: Nathan Lipsham
3. Portcehester's Brett Pitman, right
Portcehester's Scott Jones, right. Picture by Nathan Lipsham Photo: Nathan Lipsham
4. Moneyfields' Jack Lee keeps a close eye on Brett Pitman
Moneyfields' Jack Lee keeps a close eye on Brett Pitman. Picture by Nathan Lipsham Photo: Nathan Lipsham
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