Focus
EuroLeague head-to-head
longest streaks (no losses)
Context
All-time since 2000 vs ongoing among 2025–26 teams
On 6 March 2026, Olympiacos Piraeus beat Panathinaikos AKTOR
Athens once again in EuroLeague, extending their head-to-head winning streak to 11 games.
For the Greek derby it is a historic run; in the wider picture it sits among the longest such streaks since 2000. We look at both: the all-time longest head-to-head streaks in EuroLeague since 2000 (ended and ongoing), and then the ongoing streaks among clubs that still play in EuroLeague 2025–26—so you can see where OLY–PAO stands in history and among the rivalries that still matter on the floor this season.
Olympiacos–Panathinaikos: 11 and counting
The current run started on 5 February 2021 and has continued through the Round 30 meeting on
6 March 2026. In the all-time list since 2000, an 11-game streak ties with several others (e.g. Fenerbahce over Milan, CSKA over Brose Bamberg, Barcelona over Crvena Zvezda—all ended); only the 17- and 13-game runs sit above it. Among ongoing streaks between teams still in EuroLeague 2025–26, only Barcelona’s 13 over Partizan is longer, so Olympiacos–Panathinaikos is second in that table. Below: first the all-time top streaks, then the ongoing ones among current-league teams only.
All-time longest streaks since 2000
The biggest head-to-head runs in EuroLeague history (since 2000) are led by 17-game streaks: CSKA Moscow over Zalgiris (ended), and Real Madrid over ALBA Berlin (ongoing; ALBA are not in 2025–26). Then come 14 (Barcelona over Zalgiris, ended), 13 (Real over Panathinaikos and Real over Milan, ended; Barcelona over Partizan, ongoing), and 11 (Olympiacos over Panathinaikos ongoing; Fenerbahce over Milan, CSKA over Brose Bamberg, Barcelona over Crvena Zvezda—ended). So in the all-time ranking, OLY–PAO’s 11 is in the same tier as the other 11-game runs and behind the 17s and 13s.
Full list of the longest streaks (through 10 games) at the end of this section:
Ongoing streaks among 2025–26 EuroLeague teams only
Restricting to clubs in this season, the longest ongoing head-to-head streak is Barcelona’s 13 against Partizan. Next is Olympiacos’ 11 over Panathinaikos. After that come several runs of 9 and 8: Maccabi and Panathinaikos each have 9 in a row against ASVEL, Real Madrid have 9 over Partizan, Fenerbahce 8 over Bayern, Monaco 8 over ASVEL, and Barcelona 8 over Maccabi. So the 11-game OLY–PAO run is the second-longest active streak in the current league and the only one in double digits besides Barça–Partizan.
Only teams that compete in EuroLeague 2025–26 are included. Streaks involving ALBA Berlin, CSKA Moscow, Brose Bamberg, Union Olimpija and other clubs no longer in the league are not listed here, even if technically still “ongoing” in the data.
What the 11-game run means
Eleven wins in a row in a single head-to-head in EuroLeague is rare. Since 2000, only a handful of team-opponent
pairs have reached 11 or more; most of those streaks have since ended. For Olympiacos and Panathinaikos, the run
reflects both the intensity of the derby and the fact that, in the last five years, Olympiacos have consistently had
the edge when the two meet in the competition. Among teams in EuroLeague 2025–26 it stands second only to Barcelona–Partizan (13). If the streak continues, it could eventually match or pass that 13-game bar; for now, it is already one of the defining runs in the modern Greek derby and in the current league’s head-to-head landscape.
The data counts only EuroLeague regular-season and playoff games between the same two teams; each “streak” is the longest run of games without a loss for one team against a specific opponent. The first table above is all-time since 2000 (ended and ongoing); the second table keeps only ongoing streaks where both teams play in EuroLeague 2025–26. In the all-time list, OLY–PAO’s 11 sits alongside other 11-game runs; among current-league ongoing streaks it is second only to Barcelona–Partizan and underlines how dominant this phase of the derby has been.
