Andrey Rublev and Jaume Munar reached the Next Gen Finals last four with wins on Thursday, joining Alex de Minaur and Stefanos Tsitsipas, who both have 100 per cent records.
Russian 2017 finalist Rublev was outclassed by De Minaur on Wednesday but bounced back 24 hours later, following the Australian through from Group B.
Winless wildcard Liam Caruana went down 4-3 (9-7) 4-1 4-2 to leave Rublev far more satisfied with his performance as he approaches a semi-final against Tsitsipas.
"This was a completely different performance," he said. "My attitude, I think, was the best attitude out of these three matches.
"I was focused. I was not complaining. I was trying to fight for every point because I know that every point for me costs a lot. I was just trying to win each point, every point, doesn't matter the score."
UNBEATEN @alexdeminaur d. Fritz 4-3(8), 4-1, 4-2 and crowns himself Group B winner; @AndreyRublev97 finishes second in Group B and advances to the @nextgenfinals SF.#NextGenATP pic.twitter.com/G1iCHUHiYN— ATP World Tour (@ATPWorldTour) November 8, 2018
De Minaur was similarly dominant as he won his third straight match in Milan after a shaky first set, defeating Taylor Fritz 4-3 (10-8) 4-1 4-2.
"I'm really proud of my effort and I'm looking forward to what's next," De Minaur said.
And Munar completed the last-four line-up as the already-qualified Tsitsipas beat Hubert Hurkacz 4-1 4-3 (7-2) 4-1 in the day's late game.
Hurkacz still had the opportunity to progress ahead of that clash, but he was blown away and Munar - who ended Frances Tiafoe's hopes earlier on Thursday - instead went through.
Munar had joked after a rampant 4-1 4-3 (7-3) 4-1 triumph: "I did what I had to do and it's not in my hands anymore. Maybe we can buy a Greek flag or whatever for support."
|Qatar pull off shock win over Switzerland|
|Tuilagi could make England return against Australia|
|Rooney has earned England reward - Sarachan|
|Croatia thrashing means nothing now – Luis Enrique|
|Chelsea and Everton among Arnautovic suitors, claims agent|
|TJ Watt hopes to win NFL sacks race with brother JJ|
|Modric defends Ramos after Lovren comments|
|Southgate hails ´outstanding´ Delph as he talks up England strength in depth|
|No war with Manchester United over Fellaini, insists Martinez|
|Rooney to wear number 10 shirt against USA and receive armband from Delph|
|I don´t feel pressure of Liverpool expectations, claims Klopp|
|Steelers´ Roethlisberger texted Bell but ´didn’t hear back´|
|Reus and Kroos to sit out Germany´s clash with Russia|
|Van Dijk happy to recommend De Ligt if Liverpool ask|
|Sauber announce launch of junior programme|
|No ´breathtaking tennis´ in Djokovic´s win against Zverev|
|Curran: England spinners will be key in Kandy|
|Djokovic charges past Zverev to move closer to ATP Finals progression|
|Messi is a football alien - Malcom|
|Sky´s the limit for Sancho, says Dortmund team-mate Pulisic|
|Radwanska retires from tennis at 29|
|Maybe one day - Pulisic open to Premier League move|
|Suso ´proud´ of Real Madrid speculation but happy at AC Milan|
|Betis president convinced Lo Celso will stay|
|Injured Holder out of Bangladesh tour|
|Germany face relegation, final spots up for grabs - Nations League state of play|
|James Rodriguez out for several weeks with knee injury|
|Curran´s brilliant fifty rescues England´s innings|
|Lenglet: No problem with Dembele at Barca|
|Townsend rings the changes for Springboks clash|
|Claudio Ranieri´s managerial career in Opta numbers|
|Mahmudullah´s first century in eight years boosts Bangladesh|
|Fellaini gets the chop ahead of 31st birthday|
|Maradona: Solari will not last at Real Madrid|
|Molinari: Race to Dubai success would not surpass Ryder Cup glory with Fleetwood|
|Dortmund star Sancho was a Bayern target, confirms Salihamidzic|
|Gerrard enjoying ´buzz´ of management|
|Hamilton questions approach to Formula One expansion|
|Ranieri honoured to lead ´exceptional´ Fulham squad|
|Solari saw Isco out of shape - Ceballos|
|Ranieri replaces Jokanovic at Fulham|
|Durant keeps details of Green spat ´in-house´ but envisages resolution|
|Rooney: Kane and Sterling are England superstars|
|Messi will make Argentina return, says Maradona|
|Warriors drop Hawks as Green serves suspension|
|In-form Healy sends Australia into semis|
|Former NBA star McGrady says Carmelo Anthony should retire|
|Celtics´ Smart: We have to look at ourselves in the mirror|
|Federer plays down preferential treatment talk|
|Mourinho is better than Guardiola – Maradona|
|Mbappe plays down Pele comparisons|
|Don´t worry bro – Mendy responds to Trump|
|Melvin, Snitker win manager of the year awards|
|Warriors´ Green suspended for Hawks clash|
|Asensio: It´s not for me to lead Madrid|
|Rooney ready to enjoy England farewell after pressure of ´Golden Generation´|
|Ludwigsburg stun high-flying Murcia in BCL|
|Rams v Chiefs moved to LA due to Mexico City field conditions|
|Skriniar discussing new Inter contract, confirms agent|
|Former Barcelona boss Martino named MLS Coach of the Year|
|Bell fails to report to Steelers, will sit out rest of season|
|Federer back on track after dismal Thiem display|
|Udinese appoint Nicola after sacking Velazquez|
|Monaco deny they broke rules regarding youth recruitment|
|Del Bosque, Zidane, Lopetegui - The former Castilla coaches Solari follows into Real Madrid hot seat|
|Ozil rejected ´crazy offers´ from Asia, reveals agent|
|Real Madrid appoint Solari on permanent basis|
|LeVert avoids need for surgery, should return this season|
|Neuer confident despite concerns over Bayern Munich form|
|All I ever wanted to do is win, says Sixers signing Butler|