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."
|Howell grabs first-round lead at Sea Island|
|Rooney backing Kane to break England record|
|Betts named American League MVP|
|Republic of Ireland must improve, says under-pressure O´Neill|
|Injured Sergio Ramos to leave Spain squad|
|Yelich named National League MVP|
|Low praises ´beautiful goals´ from Sane and Gnabry|
|Belgium boss Martinez pleased with patient Batshuayi|
|Wilson and Sancho pay tribute to England ´legend´ Rooney|
|Rooney gave England squad a lesson in humility - Southgate|
|This Week in U.S. Sports: LeBron passes Chamberlain, Williamson looking like he is next|
|We still have a chance - Luis Enrique not giving up hope after Spain defeat|
|Rockets ´parting ways´ with Anthony|
|Rooney became ´embarrassed´ at Manchester United|
|Federer: ´Easier´ to play when I´m up against it|
|Rooney convinced England are in safe hands with Southgate|
|Black Caps skipper Williamson confident over first Test availability|
|Federer cruises into last four of ATP Finals for 15th time|
|Republic of Ireland 0 Northern Ireland 0: Randolph saves light up bore draw|
|England 3 United States 0: Experimental side impresses on Rooney farewell|
|Croatia 3 Spain 2: Jedvaj keeps World Cup finalists in contention|
|Belgium 2 Iceland 0: Batshuayi rekindles Hazard flame with match-winning brace|
|Germany 3 Russia 0: Sane on target as Low´s men stroll|
|´Fancy taking a look at Brexit?´ - Southampton credit Austin with VAR breakthrough|
|Green: Altercation with Durant will make Warriors stronger|
|Juventus star Dybala dismisses Manchester United links|
|Strinic given all clear to return to AC Milan training|
|Papier wait over as scrum-half starts for Springboks|
|MLB commissioner Manfred gets five-year extension|
|South Africa international Du Preez joins brother at Sale|
|Pogba and Sterling support my football dream, says Bolt|
|Asensio wants to ´feel more important´ at Real Madrid|
|Former Roosters and Cowboys centre Linnett joins Hull KR|
|New team tournament ATP Cup wins Djokovic´s approval|
|Roma and Pallotta donate €150,000 to injured Liverpool fan Sean Cox|
|England captain Root reprimanded on frustrating day in Pallekele|
|Jokanovic proud of establishing Fulham´s ´footballing identity´|
|Huget to make first France appearance in a year|
|Mourinho and squad ´united´ despite ´mixed´ start, says Woodward|
|Petaia and Gordon to make Wallabies debuts in Padova|
|Barcelona star Arthur determined not to let Xavi praise go to his head|
|Youthful Netherlands have forged strong bond - Wijnaldum|
|Premier League confirms £5m package for departing chief Scudamore|
|Thiem blasts past Nishikori to keep semi-final hopes alive|
|He´s always got time for me – Gerrard loved learning from Liverpool boss Klopp|
|Kearney and Ringrose return for All Blacks clash|
|Molinari on course for Race to Dubai title, Smith and Otaegui lead|
|Premier League to implement VAR from 2019-20 season|
|FSF urges Premier League clubs to reject Scudamore ´golden handshake´ request|
|Rhinos pull off Merrin coup|
|Ribery apologises for reporter altercation|
|Ford to captain much-changed England, Cokanasiga starts|
|Crotty replaces injured Williams for Ireland showdown|
|Classy Roshen gives Sri Lanka unlikely lead|
|Injured Lukaku out of Belgium-Iceland Nations League clash|
|Rooney ´passionate´ about future coaching career|
|Mehidy spins Tigers to victory despite second Taylor hundred|
|Rooney deserves special England day - Antonio|
|LeBron thinks back to his roots after latest milestone|
|Messi to return for Argentina next year - General manager Burruchaga|
|Walton salutes LeBron after he surpasses Chamberlain|
|Croatia´s Dalic and Modric not out for Spain revenge|
|Rondo to miss ´a few weeks´ with broken hand|
|Gabi, Juanfran hopeful over Oblak´s Atletico future|
|England rookie Wilson not comparing himself to Kane|
|WATCH: The baskets that moved LeBron James up the all-time NBA scoring list|
|LeBron moves into fifth on scoring list, 76ers fall in Butler´s debut|
|LeBron James into top five NBA scorers: Five quotes from league legends on his greatness|
|LeBron passes Chamberlain for fifth on all-time scoring list|
|Butler: 76ers need time to gel|