From the moment you type most successful Belgium national team manager into Google, a clash of names and records springs out: Guy Thys, Roberto Martínez — legend vs. recent era hero. Who truly deserves that title? In this article, KorKick will take you through the careers, records, and legacies to decide who holds that crown — and whether the title is even as clear-cut as it seems.
The Case for Guy Thys: Belgium’s Long-Lasting Architect

Guy Jean-Léonard Thys remains a household name in Belgian football — and often cited as the benchmark for national team success in Belgium. He held the managerial reins of the Red Devils across two spells (1976–1989, 1990–1991), accumulating over 114 matches in charge. He is the longest-serving coach in Belgian national team history.
Major milestones under Thys
- 1980: Led Belgium to the Euro final, where they narrowly lost to West Germany — the only time Belgium ever reached a European Championship final.edia])
- 1986: Guided Belgium to a historic fourth-place finish at the FIFA World Cup in Mexico — their deepest run until recent times.
- 1990: Returned briefly to take Belgium to the 1990 World Cup, though they were eliminated in the second round.
Under Thys, Belgium established itself as a respectable force in Europe — often punching above its weight. He built a culture, a stable identity, and a continuity many later coaches failed to match.
Limitations of Thys’ legacy
- In terms of sheer win percentage, later coaches have eclipsed him.
- He never delivered a major championship (Euro or World Cup) — though he came close several times.
- His era lacked the depth of globalized scouting and player mobility that current coaches enjoy, making comparisons tricky.
The Modern Challenger: Roberto Martínez

Fast-forward to the 21st century: enter Roberto Martínez, the Spaniard who took over Belgium in 2016. During his tenure, he notched up several records and high points that make a strong case for being the most successful Belgium national team manager.
Highlights of Martínez’s spell
- Under his leadership, Belgium achieved their best-ever FIFA World Cup finish: third place in 2018.
- He holds the record for most wins in a single spell as Belgium coach.
- Martínez also gave Belgium the longest uninterrupted period at No. 1 in the FIFA world rankings —.
- His points-per-game average reportedly sits around 2.26, which edges above most predecessors.
Criticisms and constraints
- Despite statistical dominance, Martínez failed to deliver a major trophy (Euro or World Cup).
- The golden generation of players (Hazard, De Bruyne, Courtois, Lukaku, etc.) was arguably as important as the coach in shaping success.
- In his final tournament, the 2022 World Cup, Belgium crashed out in the group stage — a disappointing end to a promising era.
Side-By-Side Comparison: Thys vs Martínez
Metric | Guy Thys | Roberto Martínez |
Tenure / years | 15+ years | ~6 years |
Matches in charge | ~114+ | (~49 in one spell, but total more) |
Major tournament peaks | Euro final (1980), World Cup 4th (1986) | World Cup 3rd (2018) |
Win count | 45 in 114 (approx) | 46 in 49 in one spell (record) |
Points per game | Lower average | ~2.26 (highest for Belgian coaches) |
Legacy / cultural impact | Deep, foundational | Modern benchmark, media visibility |
The statistical edge arguably leans toward Martínez. But in terms of symbolic influence and long-term identity-building, Thys still holds enormous weight among traditionalists.
Other Notable Contenders (Honorable Mentions)

While Thys and Martínez dominate the conversation, a few other coaches figure into Belgian football lore:
- Paul Van Himst (1991–1996): A celebrated Belgian footballer turned national coach. Though his managerial legacy is modest, his status as a national icon gives him a presence in Belgium’s coaching history.
- René Vandereycken, Marc Wilmots, and others had spells with varying success, but none matched the peaks or continuity of Thys or Martínez.
Each had moments, but none balanced statistical supremacy with symbolic resonance like our two main candidates.
Why the Title Is Hard to Award Cleanly
Calling someone the most successful Belgium national team manager is not just about numbers. Several factors muddy the waters:
- Era differences — Football evolves: fitness, tactics, travel, scouting, and media pressure change across decades.
- Player pool — Thys worked without global stars; Martínez managed a golden generation.
- Statistical inflation — More international matches, qualifiers, and friendlies in modern times.
- Subjective weight — Do you value tournament peaks (deep runs), consistency, legacy, or win ratio?
Because of these variables, fans often end up choosing based on emotional resonance rather than pure stats.
The Verdict: Who Deserves the Title?
If we apply a data-first lens—points, peak tournament finish—then Martínez claims the spot as most successful Belgium national team manager. His 2.26 PPG average, record-setting wins, and third-place in the World Cup give him an edge statistically over any prior coach.
However, if we consider legacy, longevity, and emotional impact—how deeply a coach embedded philosophy and identity into Belgian football—then Guy Thys remains unmatched. He laid the foundation and built Belgium’s reputation on the international stage.
So, it depends on what “successful” means to you: numbers or legacy.
Final Thoughts
Most successful Belgium national team manager is a title that resists absolute consensus. If you prioritize statistics and performance, Roberto Martínez takes the crown. But if you lean toward long-term influence and foundational legacy, Guy Thys still reigns supreme in the hearts of many Belgian fans.
Whichever side you choose, both coaches shaped Belgian football in unforgettable ways. KorKick hopes this deep dive gave you clarity — and fuel for debate. Feel free to stick around and check out our player profiles, match reviews, or transfer analysis next!