4 Paris''s win at Manchester United' on 2 December was the first head-to-head in the history of the competition that produced wins for the away team in each of the first four matches.
5 Liverpool''s 5-0 win over Atalanta' was an English club's biggest ever win against Italian rivals in Europe'.
6 Mönchengladbach''s 6-0 win over Shakhtar' in Game 3 equaled their biggest away win in the European Cup/UEFA Champions League' – their previous 6-0 success was at EPA Larnaca' in their first match of the competition in September 1970'.
6 Ronald Koeman of Barcelona became the fifth coach to lead at least six teams in the UEFA Champions League, after Carlo Ancelotti (eight), Claudio Ranieri, José Mourinho and Rafael Benítez (six).
8 On matchday 2 in Mönchengladbach, Real Madrid came two goals behind to win or draw a UEFA Champions League match for the eighth time (Manchester United, Lyon, Arsenal, CSKA Moskva and Juventus – all four).
11 In Istanbul Başakşehir''s 2-1 win against Manchester United', Martin Škrtel won the UEFA Champions League match for the first time after 11 years and 49 days (Liverpool vs Debrecen in 2009'). This is the second largest gap between victories in competition for a player after Denny Landzaat' (14 years and 227 days – from 1996' to 2010'a).
13 Marseille broke a record of 13 consecutive UEFA Champions League defeats before beating Olympiacos ' 2-1 in Game 5.
13 Barcelona topped their group for 13 consecutive seasons before being overhauled by Juventus, this time in Game 6.
15 Bayern established a new UEFA Champions League winning streak of 15 matches, matching Atlético Madrid's landmark 15 wins in a single European competition (Atlético', in the case of Atlético', the UEFA Europa League). The Spaniards rejected Bayern's definitive record in Game 5 of #39.
16 Karim Benzema and Lionel Messi joined Ryan Giggs' as the only players to score UEFA Champions League goals in 16 different campaigns. Still, only Benzema and Messi have scored in 16 consecutive seasons.
16 Erling Braut Haaland scored 16 goals from the group stage in his first 12 games in the UEFA Champions League'. No other player has scored more than 11'in 12 games (Adriano).
17 On matchday 1, Jude Bellingham (17 years 113 days) surpassed Phil Foden (17 years 192 days) to become the youngest English player to start a UEFA Champions League match.
17 Barcelona became the first team to have two strikers aged 17 or younger in a UEFA Champions League match against Ansu Fati and Pedri' in the group opening match against Ferencváros'.
20 He became the third youngest player to score in four consecutive UEFA Champions League games after Manchester City' Ferrán Torres (20 years 248 days), Kylian Mbappé (18 years 120 days) and Erling Braut Haaland (19 years 107 days). He hit Olympiacos' in the 3rd game.
20 Neymar became the first player in the history of the European Cup / UEFA Champions League to score 20 goals for two different teams (Barcelona and Paris).
21 At 21 years and 11 months, Kylian Mbappé becomes the youngest player to reach 20 goals in the UEFA Champions League, breaking the previous milestone held by Lionel Messi' (22 years 8 months).
22 Mohamed Salah''s goal in Midtjylland' on Matchday 6 was his 22nd match for Liverpool (from the group stage to the final), beating Steven Gerrard' as the club's top scorer in the European Cup / UEFA Champions League'.
25 Real Madrid qualified for the qualifying rounds in all 25 seasons of the UEFA Champions League.
26 Youssoufa Moukoko (16 years 18 days) from Dortmund became the youngest player to appear in the UEFA Champions League in the 6th Match. Céléstine Babayaro's previous record (16 years 87 days) had stood for more than 26 years.
27 Marcus Rashford became the fifth player in UEFA Champions League history to score a hat-trick as a substitute when he scored three home goals against Leipzig'. His 27 minutes on the field was the fewest of five players in the history of the competition to achieve this feat.
34 On Matchday 5 against Sevilla, Olivier Giroud (34 years 63 days) is the oldest player to score a hat-trick in the UEFA Champions League and the oldest player since Ferenc Puskás from Real Madrid (#39) (38 years 173 days) it happened. Against Feyenoord' in September 1965'. It was also the 17th time a player has scored four or more goals in a match in the UEFA Champions League era.
35 Demba Ba (35 years 163 days) became the second oldest African player to score a UEFA Champions League goal after Didier Drogba (36 years 259 days) after Istanbul Başakşehir's #39 beat Manchester United 2-1 in the 3rd match.
40 On matchday 6, he became the fourth fastest player to score 40 goals in the UEFA Champions League, after Neymar (65 games), Ruud van Nistelrooy (45 games), Lionel Messi and Robert Lewandowski (both 61).
53 Juventus''s striker Álvaro Morata recorded his first pair in the UEFA Champions League' in the 53rd match of the tournament at Dynamo Kiev' on matchday 1. He then repeated his success in Ferencváros on the 3rd Matchday.
59 A Pep Guardiola side drew 0-0 for the first time in the UEFA Champions League in 59 games played in Porto on Matchday 5 of Manchester City. The last event was when the Bayern team was held by Shakhtar Donetsk in February 2015.
75 Mircea Lucescu from Dynamo Kyiv #39, 75 years 83 days old, became the oldest coach to head a match in the UEFA Champions League on 1 Matchday.
94 Ivan Rakitić scores Sevilla's fastest ever UEFA Champions League goal (three minutes, 52 seconds) and Munir hits his final goal (94 minutes, ten seconds) in a 2-1 win over Krasnodar at 4-#39 on Matchday.
133 İrfan Can Kahveci''s hat-trick against Leipzig in the 5th match against İstanbul Başakşehir' placed 133rd in the match, but after Ronaldo' after Real Madrid' Manchester United and Gareth Bale' finished third on the losing side in April 2003' was in October 2010 for Inter against Tottenham and #39. It was also the first treble to feature three goals from outside the field since Man'. Wayne Rooney of United' against Fenerbahce' in September 2004'.
137 On match day 4, Liverpool lost more than one goal at home for the first time in 137 matches played against Jürgen Klopp at Anfield. It was also the heaviest home loss since August 2015, as they lost 3-0 to West Ham ' in the Premier League under Brendan Rodgers'.
750 Cristiano Ronaldo achieved his 750th career goal for club and country in Game 5 against Dynamo Kiev. It was the first UEFA Champions League goal against this opponent since 7 November 2007 (13 years 25 days ago) – the biggest difference between goals is a player against an opponent team in UEFA Champions League history.