The 2026 Japan Open concludes with a championship clash between Carlos Alcaraz and Jiri Lehecka on October 6 at 5:00 am ET. Alcaraz enters the title match as the natural favorite given his World No. 3 ranking.

The defining question for bettors is whether Lehecka can execute his big serves and baseline game against an elite defender.

Alcaraz leads the head-to-head series 3-1, winning their first match in 2023 in London in straight-sets. In 2025 Lehecka won in Doha, followed by Alcaraz winning in London again, and then at the US Open.

Recent form points to resilience on both sides. Lehecka has won four straight in Tokyo, including a three-set comeback win over Ugo Humbert, while Alcaraz has come through two three-set matches and a retirement-shortened semifinal.

The numbers tilt the matchup toward Alcaraz more clearly than a simple serve comparison suggests. Tennis Abstract’s current Elo rates Alcaraz at 2,148.9 and Lehecka at 1,948.5, and the 200-point gap is meaningful. Tennis Ratio’s 52-week comparison shows Alcaraz ahead in dominance ratio (1.870 to 1.336), return games won (30.7% to 18.1%) and break points converted (42.9% to 35.8%).

Lehecka’s stronger aces-per-game rate (0.67 to 0.35) and first-serve points won (76.2% to 72.6%) are credible counters, but Alcaraz’s broader return and pressure-point advantages make him the likelier winner.

The Over remains a reasonable secondary angle, but the data does not make it as compelling as the original case suggested. Alcaraz’s Tokyo path has included two three-set matches, and Lehecka has also played a deciding set this week. Their 2025 Doha meeting went three sets, but the other recent head-to-head results are not evidence that every encounter is close. Lehecka’s serve can help him stay competitive, yet Alcaraz’s much stronger return numbers also leave open the possibility of a more straightforward win. Treat the Over as a lean rather than a high-confidence play, with the more data-supported pick being an Alcaraz win.

Alcaraz is the stronger side by both Elo and the 52-week serve-and-return profile, but those measures support the match winner more directly than an exact set score. His recent Tokyo matches have varied in length, and Lehecka’s high first-serve points-won rate gives him a route to take a set. Still, the substantial Elo gap and Alcaraz’s clear return advantage argue against relying on a guaranteed three-set script. I would keep Alcaraz as the pick, but prefer the match winner over Alcaraz 2-1 if available at a fair price. The +300 correct-score play is a higher-variance option, not the primary recommendation.