Jahmal Hector-Ingram (pictured) and Rushian Hepburn-Murphy scored first-half goals as Derby County beat Leeds United 2-1 to go top of Group H in the Premier League Cup.
Theo Hudson pulled a goal back for Leeds, who remain bottom without a win.
Derby go a point ahead of Wolverhampton Wanderers, who drew 2-2 with Birmingham City on Thursday.
See: Derby report | Leeds report
Nottingham Forest secured their first Premier League Cup win of the season as they beat Southampton 2-1 in Group E.
Virgil Gomis struck in the first half for Forest and Zach Clough doubled the lead after the break, while Kornelius Hansen grabbed a consolation for Saints on 71 minutes.
Forest remain bottom with three points from five matches, a point and a position behind third-placed Southampton.
See: Forest report | Southampton report
Middlesbrough fought back from a goal down to earn a 4-1 win over Blackburn Rovers, moving two points behind their visitors at the top of Group G.
Having fallen behind to a ninth-minute penalty from Stefan Mols, Boro hit back through Sam Folarin and Tyrone O'Neill before half-time, with both scoring again after the break.
Elsewhere in the group, a late Mitch George goal earned Burnley their first win in the competition at Crystal Palace in the battle between the bottom two.
See: Boro report | Blackburn report
Ryan Cassidy struck four minutes into the second half to move Watford off the bottom of Group B and into second place with a 1-0 win over Fulham, who now lie a point behind them in third.
See: Watford report | Fulham report
Swansea City were denied a victory that would have taken them off the foot of Group A as leaders Reading scored a late equaliser in a 1-1 draw.
Cameron Evans headed the Swans in front after 16 minutes, only for Oli Pendlebury to level nine minutes from time.
See: Swansea report
Hull City kept their hopes alive of progressing from Group C with a 3-2 win at Scunthorpe United last Monday, while Exeter City's 2-1 win over Portsmouth sent them above Doncaster Rovers to the top of Group D.
Sunday's Group F match between Liverpool and Sunderland was postponed due to bad weather.