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Biggest Upsets in Champions League History: 10 Away Wins

Sheriff Tiraspol, a squad worth about €12m, won at the Bernabéu with 4 shots to Real Madrid's 31 and 24% of the ball.

  • No. 1: Real Madrid 1-2 Sheriff (2021)
  • 10 places

01Final list

The leading AIs built their own top-ten lists independently. Above is one combined result that is easy to check: every place has a reason, the AIs that included it and, where the AIs gave one, a source.

Order: from most to least AI agreement.

A bright badge means this AI put the entry on its list. A dim badge means it did not.

  1. 1

    Real Madrid 1-2 Sheriff (2021)

    Survival win: 4 shots to Real's 31 and 24% of the ball. The money gap is disputed (62x or about 120x, both estimates). Gracenote gave Sheriff a 1.4% chance.

    Included it: Claude, Gemini. Did not include: ChatGPT, DeepSeek, Wenxin.

    In their lists: Claude: 1 · Gemini: 1

    What each AI noted 2
    • Claudeplace 1

      Real had 31 shots to Sheriff's 4 and a squad worth roughly 120 times more, yet lost. Gracenote gave Sheriff a 1.4% chance.

      Source ↗
    • Geminiplace 1

      Sheriff held 24% possession and absorbed 31 shots against a squad worth 62 times their own before Sébastien Thill's 89th-minute half-volley stunned the Santiago Bernabéu (Survive Pressure).

    2 AIs put it here
    Source ↗
  2. 2

    Barcelona 1-2 Rubin Kazan (2009)

    Survival win over the reigning European champions at Camp Nou. Gemini's 73% possession and roughly 10x money gap are estimates with no checked source page.

    Included it: Claude, Gemini. Did not include: ChatGPT, DeepSeek, Wenxin.

    In their lists: Claude: 5 · Gemini: 2

    What each AI noted 2
    • Claudeplace 5

      Barcelona ended a 10-match unbeaten Champions League run at home to a Russian side. UEFA wrote that Rubin's backline was 'iron-clad'.

    • Geminiplace 2

      Rubin shocked Pep Guardiola's reigning world sextuple champions with two goals from only three attempts while withstanding 73% Barcelona possession at Camp Nou (Survive Pressure).

    2 AIs put it here
    no source given
  3. 3

    Real Madrid 1-4 Ajax (2019)

    Outplay win: four goals at the Bernabéu on 43% of the ball, with a money gap of only 2.3–2.6x. Gracenote still rates it the 4th-biggest shock since 2010.

    Included it: Claude, Gemini. Did not include: ChatGPT, DeepSeek, Wenxin.

    In their lists: Claude: 4 · Gemini: 8

    What each AI noted 2
    • Claudeplace 4

      Ajax had 43% of the ball and a squad worth less than half of Real's, yet scored four at the Bernabéu. It was Real's biggest home defeat in European knockouts.

      Source ↗
    • Geminiplace 8

      Trailing from the first leg, Ajax bypassed defensive containment to outplay the three-time titleholders at the Bernabéu with 16 shots and four goals (Outplay Giant).

    2 AIs put it here
    Source ↗
  4. More about the top three ↓
  5. 4

    Manchester City 1-2 Lyon (2018)

    Survival win and Gracenote's 5th-biggest shock since 2010. Gemini's 22 shots, 70% possession and 2.52 xG conceded have no checked source page.

    Included it: Claude, Gemini. Did not include: ChatGPT, DeepSeek, Wenxin.

    In their lists: Claude: 8 · Gemini: 10

    What each AI noted 2
    • Claudeplace 8

      Lyon won on opening night in Manchester. Gracenote ranks it the fifth-biggest shock since 2010.

      Source ↗
    • Geminiplace 10

      Lyon absorbed 22 shots and 70% possession from Pep Guardiola's domestic treble winners at the Etihad, executing two sharp first-half goals (Survive Pressure).

    2 AIs put it here
    Source ↗
  6. 5

    Chelsea 1-2 Basel (2013)

    Basel came from behind at Stamford Bridge, with Salah scoring the equaliser. Gracenote's 9th-biggest shock since 2010. The 9.3x money gap is Gemini's estimate.

    Included it: Claude, Gemini. Did not include: ChatGPT, DeepSeek, Wenxin.

    In their lists: Claude: 10 · Gemini: 7

    What each AI noted 2
    • Claudeplace 10

      Basel beat Chelsea at Stamford Bridge. Gracenote lists it as the ninth-biggest shock since 2010.

      Source ↗
    • Geminiplace 7

      Basel halted Chelsea's 29-match home group unbeaten run by coming from behind at Stamford Bridge, with Mohamed Salah scoring the pivotal equalizer (Outplay Giant).

    2 AIs put it here
    Source ↗
  7. 6

    Inter 1-2 Bodø/Glimt (2026)

    The heaviest checked siege: Inter took 30 shots, their most in a Champions League game since 2003-04 (Opta). Glimt's first shot came in minute 36. No money ratio was found.

    Included it: Claude. Did not include: ChatGPT, Gemini, DeepSeek, Wenxin.

    In their lists: Claude: 2

    What each AI noted 1
    • Claudeplace 2

      Inter had 30 shots, their most in a Champions League game since 2003-04. Bodø/Glimt's first shot came in the 36th minute, and they still won 2-1 and took the tie 5-2.

      Source ↗
    1 AIs put it here
    Source ↗
  8. 7

    Liverpool 0-2 Atalanta (2020)

    Gracenote's 3rd-biggest shock since 2010. No AI found xG, shots or squad values, so the place rests on that rank alone.

    Included it: Claude. Did not include: ChatGPT, Gemini, DeepSeek, Wenxin.

    In their lists: Claude: 6

    What each AI noted 1
    • Claudeplace 6

      Atalanta won at Anfield 2-0 as the third-biggest shock since 2010 on Gracenote's index.

      Source ↗
    1 AIs put it here
    Source ↗
  9. 8

    Real Madrid 2-3 Shakhtar Donetsk (2020)

    Outplay then survive: Shakhtar, missing 10 players to COVID-19, led 3-0 at half-time in Madrid. The 12.1x gap is Gemini's estimate.

    Included it: Gemini. Did not include: Claude, ChatGPT, DeepSeek, Wenxin.

    In their lists: Gemini: 4

    What each AI noted 1
    • Geminiplace 4

      Missing 10 regular first-team players due to COVID-19, Shakhtar's reserve-laden lineup built an audacious 3-0 halftime lead in Madrid before surviving a second-half onslaught (Outplay then Survive).

    1 AIs put it here
    no source given
  10. 9

    Roma 1-2 CFR Cluj (2008)

    In Cluj's Champions League debut, a Juan Culio brace overturned a 1-0 deficit at the Olimpico. Gemini's 22 shots and 8.8x gap are unchecked estimates.

    Included it: Gemini. Did not include: Claude, ChatGPT, DeepSeek, Wenxin.

    In their lists: Gemini: 3

    What each AI noted 1
    • Geminiplace 3

      Making their Champions League debut, Cluj conceded after 11 minutes at the Stadio Olimpico but answered with a Juan Culio brace while absorbing 22 shots (Survive Pressure).

    1 AIs put it here
    no source given
  11. 10

    Real Madrid 0-3 CSKA Moscow (2018)

    Outplay win: three goals at the Bernabéu against the reigning European champions. Gemini's 8.4x money gap and 19 shots conceded are unchecked estimates.

    Included it: Gemini. Did not include: Claude, ChatGPT, DeepSeek, Wenxin.

    In their lists: Gemini: 6

    What each AI noted 1
    • Geminiplace 6

      CSKA dealt the reigning European champions their heaviest-ever home continental defeat, absorbing 19 shots while ruthlessly executing three clinical counter-punches (Outplay Giant).

    1 AIs put it here
    no source given

02More about the top three

The ranking is above. Here is more about the three places at the top: what they are, why they are here, and what is worth knowing.

The three are measured differently: money gaps are disputed estimates (62x to 120x, about 10x, 2.3–2.6x), and possession and shot numbers come from different sources.

1Real Madrid 1-2 Sheriff (2021)

No. 1 — Real Madrid 1-2 Sheriff (2021). On the lists of 2 of 5 AIs; median place there: 1. The AIs put it first because Sheriff won with almost no ball and few shots against a squad worth far more.

2021-01-01 happy-new-year Pepper and Carrot by David Revoy
David Revoy · CC BY 4.0 · Wikimedia Commons

Did you know

  • Sheriff's winning goalscorer Sebastien Thill had played on loan last year for FC Tambov, a Russian club that was dissolved in May 2021 after declaring bankruptcy.

    Source ↗
What it is
Sheriff beat Real Madrid 2-1 at the Bernabéu in 2021.
Its edge
Biggest money gap and the most pressure survived: 4 shots to 31.
Who should know
Useful for anyone who wants to see how far a tiny club's win can go.
  • Money gap and pressure4 shots to 31, 24% ball

Wikipedia · Wikidata

Why it is here

  • Sheriff had 24% of the ball against Real's 76% and got only 4 shots to Real's 31. Their keeper made 10 saves, and they still won 2-1 with a goal in the 89th minute.

    Source ↗

  • Real Madrid are 13-time European champions. Sheriff were formed in 1997, and this was their first-ever Champions League away win. That history is why the win is ranked so high.

    Source ↗
Did you know

  • The 2021 match was Sheriff's first Champions League group-stage season, and the club was only founded in 1997. They had already won both of their first two group games before travelling to Madrid.

    Source ↗
History

  • Sheriff won its first Moldovan league title in 2000–01, the start of a run of ten straight titles up to 2010. The club is owned by a Transnistrian business conglomerate.

    Source ↗
Keep in mind

  • Real's own coach felt robbed: Carlo Ancelotti said, "We lost and we didn't deserve it." ESPN also blamed easy goals and loose defending, so this win owed something to Real's mistakes.

    Source ↗

  • Sheriff is run by a company that owns petrol stations, supermarkets and a phone network in Transnistria, a region the UN still counts as part of Moldova. Its stadium cost around £148m.

    Source ↗
What people say

  • We believed we could win. I spoke to my teammates as captain, motivating them, saying 'why not dream?' — Frank Castaneda, Sheriff captain

    Source ↗
Where to go further

  • Open the match page and check the shot count first. Real Madrid had far more shots than Sheriff. Then read the timeline: Sheriff scored first, and Real Madrid equalised from a penalty.

    Source ↗

Video: 2021, in 6 minutes · Vox

Compare the top three ↓

2Barcelona 1-2 Rubin Kazan (2009)

No. 2 — Barcelona 1-2 Rubin Kazan (2009). On the lists of 2 of 5 AIs; median place there: 3.5. The AIs rank it second because Rubin beat the reigning European champions at Camp Nou while barely getting a shot.

2009 new year's card by David Revoy
David Revoy · CC BY-SA 4.0 · Wikimedia Commons

Did you know

  • Rubin won the Russian league in 2008, only the third club from outside Moscow to do so. That earned them a place in the 2009–10 Champions League, making them the easternmost team ever to play in the competition.

    Source ↗
What it is
Rubin Kazan beat Barcelona 2-1 at Camp Nou in 2009.
Its edge
Beat the reigning champions under heavy pressure, but the money gap is smaller than Sheriff's.
Who should know
Useful for anyone curious how a small Russian side stunned the world's best team.
  • Money gap and pressure73% Barcelona possession

Wikipedia · Wikidata

Why it is here

  • Rubin Kazan won at Camp Nou even though they were outshot 24 to 3. That is a huge pressure gap, and it is why this win ranks so high on the survival side of the score.

    Source ↗
History

  • In 1996 the mayor of Kazan, Kamil Iskhakov, bought the club. Two years earlier it had dropped to the Russian Second Division. It won that league in 1997, then reached the Russian Premier League in 2003.

    Source ↗
Keep in mind

  • The Moscow Times describes Rubin as a tiny team, founded in 1958, that spent most of its history in the lower divisions. Any money gap figure here is a later estimate, not a number from this page.

    Source ↗

Video: TRIANGLE (2009) Explained · FoundFlix

Compare the top three ↓

3Real Madrid 1-4 Ajax (2019)

No. 3 — Real Madrid 1-4 Ajax (2019). On the lists of 2 of 5 AIs; median place there: 6. The AIs place it third because Ajax truly outplayed Real with four goals, though the money gap was small.

2019-01-01 Pepper Carrot Happy-New-Year by-David-Revoy
David Revoy · CC BY 4.0 · Wikimedia Commons
What it is
Ajax beat Real Madrid 4-1 at the Bernabéu in 2019.
Its edge
Won by playing well, not by surviving, so it scores lower on the pressure side.
Who should know
Useful for anyone who wants to see an upset won by good play, not luck.
  • Money gap and pressure2.3–2.6x money gap

Wikipedia · Wikidata

Why it is here

  • Ajax won 4-1 at the Bernabéu with only about 43% of the ball. Ziyech, Neres, Tadić and Schöne scored for Ajax, and Real's Asensio got the only goal for the home side.

    Source ↗

  • Ajax led 2-0 by the 18th minute through an early Ziyech goal and Neres. That fast start came against the holders and set up a 5-3 aggregate win, so this ranks as an outplay win rather than a survival win.

    Source ↗

Video: 2019, in 6 minutes · Vox

Compare the top three ↓

The top three side by side

Real Madrid 1-2 Sheriff (2021)Barcelona 1-2 Rubin Kazan (2009)Real Madrid 1-4 Ajax (2019)
In the AIs' lists2 / 52 / 52 / 5
Money gap and pressure4 shots to 31, 24% ball73% Barcelona possession2.3–2.6x money gap
Put first byClaude, Gemini——

Places with the same number of AIs are ordered by their average place in the AIs' own lists.

More ratings

03Worth knowing

What the AIs noticed while building the list.

Sheriff's whole squad was valued at about €12m in 2021, roughly one-sixth of Casemiro's own value at the time.

Noticed by:
Included it: Claude. Did not include: ChatGPT, Gemini, DeepSeek, Wenxin.
Source ↗

The money gap is not the same as the surprise. Ajax won with a gap of only about 2.3x, and Gracenote still ranks it the 4th-biggest shock since 2010.

Noticed by:
Included it: Claude. Did not include: ChatGPT, Gemini, DeepSeek, Wenxin.
Source ↗

Sporting CP 2-3 LASK (21 Oct 2026) is left out. Gemini reported 26 shots and 69% possession for Sporting, but the fixture page showed no final score or stats.

Noticed by:
Included it: Claude, Gemini. Did not include: ChatGPT, DeepSeek, Wenxin.
Source ↗

Bodø/Glimt 3-1 Man City (2026) is left out because it was a home win, though Glimt had the higher xG (1.35 to 1.16) on 34% of the ball.

Noticed by:
Included it: Claude. Did not include: ChatGPT, Gemini, DeepSeek, Wenxin.
Source ↗

04How we counted

In plain words, no formulas.

1The question

Top 10 Away Wins Against Champions League Giants: The Money Gap Against How Hard the Underdog Was Pressed

2Why this topic

Squad values and match stats are published separately, and setting one against the other shows which away wins beat both the money and the run of play.

3Where it applies

UEFA Champions League away wins by the underdog, 2000–2026

4What we looked at

  • Ratio of the home club's squad market value to the visiting club's squad value at kickoff
  • How much pressure the visitors survived: xG conceded, shots conceded and possession share
  • Both are combined into one score, so a win under heavy pressure against a much richer side ranks highest
  • Transfermarkt — Total market value of each club's first-team squad in euros, used for the home-to-visitor money gap. The values are dated snapshots, not values at kickoff.
  • Opta Analyst / StatsPerform — Single-match shots, xG and possession. Coverage is partial.
  • ESPN team match stats — Possession, shots, shots on target and corners per match
  • Gracenote Euro Club Index — Pre-match win probability and a ranking of the biggest Champions League shocks since 2010
  • UEFA knockout-phase shocks feature — UEFA's editorial list of knockout upsets, with results and which underdogs won away

5Who ranked

The leading AIs, each building its own list of ten independently and naming a source for every place: Claude, ChatGPT, Gemini, DeepSeek, Wenxin.

6How the places were set

The same entry written differently by different AIs was counted as one. The more AIs put an entry on their list, and the higher they put it, the higher its place. "AI agreement" shows how many of the AIs had it on their own list. Sources are only those the AIs found themselves; nothing was added by hand.

05Each AI's own list

🇺🇸 Claude10 places · 4 notes

The same question, answered by Claude alone. The final list above combines all the AIs.

  1. 1
    Sheriff Tiraspol 2-1 Real Madrid (2021)

    Real had 31 shots to Sheriff's 4 and a squad worth roughly 120 times more, yet lost. Gracenote gave Sheriff a 1.4% chance.

    Source ↗
  2. 2
    Bodø/Glimt 2-1 Inter, San Siro (2026)

    Inter had 30 shots, their most in a Champions League game since 2003-04. Bodø/Glimt's first shot came in the 36th minute, and they still won 2-1 and took the tie 5-2.

    Source ↗
  3. 3
    Bodø/Glimt 3-1 Manchester City (2026)

    Bodø/Glimt had 34% of the ball and half City's shots, but a higher xG (1.35 to 1.16). City's squad is worth about 24 times theirs.

    Source ↗
  4. 4
    Ajax 4-1 Real Madrid (2019)

    Ajax had 43% of the ball and a squad worth less than half of Real's, yet scored four at the Bernabéu. It was Real's biggest home defeat in European knockouts.

    Source ↗
  5. 5
    Rubin Kazan 2-1 Barcelona (2009)

    Barcelona ended a 10-match unbeaten Champions League run at home to a Russian side. UEFA wrote that Rubin's backline was 'iron-clad'.

  6. 6
    Atalanta 2-0 Liverpool, Anfield (2020)

    Atalanta won at Anfield 2-0 as the third-biggest shock since 2010 on Gracenote's index.

    Source ↗
  7. 7
    Villarreal 3-0 Juventus (2022)

    Villarreal scored three in the last 12 minutes in Turin after conceding after 33 seconds in the first leg. They won the tie 4-1.

  8. 8
    Lyon 2-1 Manchester City (2018)

    Lyon won on opening night in Manchester. Gracenote ranks it the fifth-biggest shock since 2010.

    Source ↗
  9. 9
    Qarabağ 3-2 Benfica (2025)

    Qarabağ came back from two goals down in Lisbon, with xG of 1.52 to Benfica's 1.38. It was their first Champions League win.

    Source ↗
  10. 10
    Basel 2-1 Chelsea (2013)

    Basel beat Chelsea at Stamford Bridge. Gracenote lists it as the ninth-biggest shock since 2010.

    Source ↗

What Claude noticed

Sheriff's squad was valued at about €12m in 2021, roughly one-sixth of Casemiro's own value then, and they still won at the Bernabéu with 4 shots to Real's 31.

Source ↗

The two kinds of win are easy to tell apart. Sheriff and Inter-Glimt survived pressure. Glimt-City and Ajax-Real outplayed the giant: Glimt had a higher xG on 34% possession, and Ajax scored twice in 18 minutes.

Source ↗

Bodø/Glimt beat Inter 5-2 on aggregate and became the first Norwegian club to win a Champions League knockout tie. They had already beaten Man City 3-1 in the league phase, so the two results are linked.

Source ↗

The money gap is not the same as the surprise. Ajax's 2019 win came with a gap of only about 2.3 times, but Gracenote still rates it the 4th-biggest shock since 2010.

Source ↗
🇺🇸 Gemini10 places

The same question, answered by Gemini alone. The final list above combines all the AIs.

  1. 1
    Real Madrid 1–2 Sheriff Tiraspol (2021)

    Sheriff held 24% possession and absorbed 31 shots against a squad worth 62 times their own before Sébastien Thill's 89th-minute half-volley stunned the Santiago Bernabéu (Survive Pressure).

  2. 2
    Barcelona 1–2 Rubin Kazan (2009)

    Rubin shocked Pep Guardiola's reigning world sextuple champions with two goals from only three attempts while withstanding 73% Barcelona possession at Camp Nou (Survive Pressure).

  3. 3
    AS Roma 1–2 CFR Cluj (2008)

    Making their Champions League debut, Cluj conceded after 11 minutes at the Stadio Olimpico but answered with a Juan Culio brace while absorbing 22 shots (Survive Pressure).

  4. 4
    Real Madrid 2–3 Shakhtar Donetsk (2020)

    Missing 10 regular first-team players due to COVID-19, Shakhtar's reserve-laden lineup built an audacious 3-0 halftime lead in Madrid before surviving a second-half onslaught (Outplay then Survive).

  5. 5
    Sporting CP 2–3 LASK (2026)

    Rebounding from a 6-3 defeat, Linz's €28m roster withstood 69% possession, 26 attempts, and a Luis Suárez brace in Lisbon to snatch victory on three counter-strikes (Survive Pressure).

  6. 6
    Real Madrid 0–3 CSKA Moscow (2018)

    CSKA dealt the reigning European champions their heaviest-ever home continental defeat, absorbing 19 shots while ruthlessly executing three clinical counter-punches (Outplay Giant).

  7. 7
    Chelsea 1–2 FC Basel (2013)

    Basel halted Chelsea's 29-match home group unbeaten run by coming from behind at Stamford Bridge, with Mohamed Salah scoring the pivotal equalizer (Outplay Giant).

  8. 8
    Real Madrid 1–4 Ajax (2019)

    Trailing from the first leg, Ajax bypassed defensive containment to outplay the three-time titleholders at the Bernabéu with 16 shots and four goals (Outplay Giant).

  9. 9
    Manchester United 2–3 Galatasaray (2023)

    Facing an €880m squad, Galatasaray fought back from two deficits at Old Trafford, surviving 16 United attempts before Mauro Icardi secured their first victory in England (Outplay Giant).

  10. 10
    Manchester City 1–2 Lyon (2018)

    Lyon absorbed 22 shots and 70% possession from Pep Guardiola's domestic treble winners at the Etihad, executing two sharp first-half goals (Survive Pressure).