KC now leads Group 2 with six points from their two games.
Trailing Kingston College with three points from two games is Excelsior High School, which suffered a 2-1 defeat to Charlie Smith High that was getting their first win of the round.
Kingston Technical have yet to register a point after losing their first two games.
In Group 1 play on Tuesday, defending champions Jamaica College became the first team to advance to the semi-finals with a hard-fought 5-3 triumph over ST Andrew Technical High School (STATHS).
JC remains atop of the group with six points from their two games ahead of STATHS on three and Mona, also on three, after their crucial 2-0 win over St. Catherine High.
STATHS and Mona will do battle to see who joins JC in the semis.
Over in the DaCosta Cup, Dinthill Technical and Edwin Allen both got wins in Zone 1 action on Tuesday to set up a winner-take-all game to decide which of the two will advance to the semi-finals.
Dinthill defeated William Knibb 3-0 while Edwin Allen comfortably got by Christiana High 4-0 in a double-header at Manchester High.
Dinthill and Edwin Allen now both have six points from two matches with Dinthill currently ahead with a goal difference of 7 to 6 for Edwin Allen.
Mannings got their second win in Zone 2 with a 6-0 thrashing of Happy Grove at Drax Hall to remain atop the zone with six points from two games, two points ahead of Munro College, which outscored Vere Technical 4-3 and now have four points.
Happy Grove currently sits third with one point while Vere is fourth with none.
This is another scenario where the winner of the match between Mannings and Munro will advance to the semi-finals.
On Wednesday, Garvey Maceo and St Elizabeth Technical High School (STETHS) played to a 2-2 draw at Kirkvine while Frome hammered St. Thomas Technical 9-2 at Drax Hall in Zone 3 action.
This was Garvey Maceo’s first draw this season after winning their first eight matches.
STETHS and Garvey Maceo both have four points after two games with STETHS leading the zone on goal-difference of five against two for Garvey Maceo.
Frome is third with three points and St. Thomas Technical are fourth with none.
STETHS will play Frome in their final match while Garvey Maceo will play St. Thomas Technical.
At Manchester High, Clarendon College got a 2-0 win over Manchester to get their second straight win in Zone 4 and move to six points.
After originally finishing fourth in Group B behind Camperdown, Tivoli and Excelsior, they advanced to the quarterfinal round as a second-placed team after Camperdown and Tivoli were disqualified from the competition for using ineligible players.
On Friday at Jamaica College, they played out a 1-1 draw with Mona High to advance from Group 1 along with defending champions Jamaica College to the last four of the competition.
JC finished with a perfect nine points from three games with a 3-1 win over St. Catherine at Stadium East.
On Saturday, Kingston College (KC) secured the top spot in Group 2 with a 2-0 win over Excelsior also at Jamaica College.
Charlie Smith beat Kingston Technical4-1 in the other Group 2 game to advance alongside KC.
KC will play STATHS in one semi-final and JC will play Charlie Smith in the other.
Meanwhile, Mona, Excelsior, Kingston Technical and St. Catherine High will contest the Walker Cup.
In the daCosta Cup, Dinthill Technical and The Mannings School advanced to the semi-finals on Friday.
Dinthill won Zone 1 after beating Edwin Allen 1-0 at Drax Hall, their third win in as many games.
Christiana beat William Knibb 3-2 in the other Zone 1 match at Drax Hall.
Mannings played to a 1-1 draw with Munro College at STETHS to finish with seven points from their three matches and win Zone 2.
Vere Technical and Happy Grove played a seven-goal thriller in the other Zone 2 game at STETHS on the day, with the former prevailing 4-3.
On Saturday, Garvey Maceo pulled off something special to get into the semi-finals.
Entering their final match against St. Thomas Technical at Kirkvine, trailing STETHS by three goals on goal difference, Garvey Maceo produced a massive 12-0 victory over St Thomas Technical to win Zone 3 and advance.
STETHS tried their best with a 6-0 win over Frome Technical at home but it wasn’t enough.
Garvey Maceo and STETHS both finished with seven points but Garvey Maceo’s massive win meant they ended with a goal difference of +16 whereas STETHS, with a big win of their own, ended up with a goal difference of +11.
Edwin Allen, Christiana, Munro College, Vere Technical, STETHS and Frome, as second and third-placed finishers from the respective groups, have all qualified for the Ben Francis Cup.
The final two qualifiers as well as the final DaCosta Cup semi-finalists will be determined after rescheduled Zone-4 games on Tuesday when Clarendon College play McGrath High and Manchester High and Cornwall College meet.
Excelsior and STATHS had originally finished third and fourth in Group B of the Manning Cup preliminary round but advanced after Camperdown and Tivoli were disqualified from the tournament for using ineligible players.
STATHS won their Group 1 opener 4-1 over St. Catherine High on Friday while Excelsior High beat Kingston Technical 3-1 in their Group 2 opener on Saturday.
Jamaica College beat Mona High 2-0 in the other Group 1 match on Friday and Kingston College got by Charlie Smith 3-0 in the other Group 2 match on Saturday.
The quarter-final round of the DaCosta Cup also got underway on Saturday with Dinthill Technical blanking Christiana High 4-0. Meanwhile, Edwin Allen beat William Knibb 2-0 in the second Zone 1 game on the day.
Mannings were the only Zone 2 winners Saturday, beating Vere Technical 3-2.
Munro College, which have struggled for form played to a 1-1 draw with Happy Grove in the other Zone game on the day.
Munro entered that game on the back of two straight losses in their Zone C playoff games against Lacovia and B.B. Coke.
In Zone 3, Garvey Maceo continued their fantastic form this season by beating Frome 2-0 while STETHS easily got past St. Thomas Technical 6-1.
Elsewhere, defending champions Clarendon College and Manchester High got wins in Zone 4 action.
Clarendon College defeated Cornwall College 2-1 while Manchester High ran out 4-0 winners over McGrath High.
Quarterfinal action in both competitions resumes on Tuesday.