The Bonus Points
Mawson also contributed 13 clearances, blocks and interceptions (CBI), eight recoveries and a successful tackle to total 47 in the Bonus Points System (BPS).
Fellow defender Martin Olsson (£4.5m) collected two bonus points.
He scored the Swans’ second goal, while also making seven CBI, six recoveries and providing a pair of open-play crosses to tally 40 in the BPS.
Federico Fernandez (£4.3m) made it a clean sweep for Swansea defenders at the top of the BPS with a score of 38.
The centre-back provided the assist for Mawson's opener and totalled 11 CBI and three recoveries as he played his part in a first Swansea clean sheet since Gameweek 15.
The ICT Index
Olsson topped the ICT Index with a score of 10.4. The defender created two chances from five attempted crosses.
Since his arrival at the club, he has supplied a total of 13 crosses, second only to Gylfi Sigurdsson (£7.5m) for the Swans ranks over that spell.
With Threat and Creativity scores of 34 and 32 respectively, Sigurdsson recorded 8.2 overall in the Index.
The Icelander produced five goal attempts - three coming from inside the box - and created two chances.
The Scout Notes
Owned by a mere 0.3% of FPL managers, Mawson was identified as one of our differentials ahead of Gameweek 26.
Following Sunday's impact, he has now emerged as a leading budget defender.
While a Gameweek 26 visit to leaders Chelsea could calm investment, Swansea's schedule, including home encounters against Burnley and Middlesbrough and a guaranteed fixture at Hull City in Gameweek 28, is likely to accelerate interest in Mawson.
Meanwhile, Sigurdsson's ownership also remains on the rise.
The top transfer target ahead of Gameweek 25 with 229,000+ FPL managers swooping for his services, Sigurdsson failed to continue a run that had reaped goals in three successive matches.
But an assist for Olsson's goal was reasonable reward for his new owners and, as master of all Swansea's set-pieces and penalties, he remains a key target.
For Leicester, the performance of Demarai Gray (£4.8m) provided a positive from their latest defeat.
Gray started the match in a central-attacking role behind lone striker Jamie Vardy (£9.6m), before switching to the left wing in the second half. He created three chances and completed nine of 15 attempted dribbles - more than any other player in Gameweek 25 so far.
An improving schedule from Gameweek 27 may yet see FPL managers consider Gray if he maintains that recent form.