C. Chidekh vs I. Ivanov — prediction

Chidekh carries a 90-point Elo advantage (1746 vs 1656), the single strongest signal pointing his way. In a Challenger-level Elo model this reflects a real quality gap built over matches, though it's a softer, less-scrutinized market than tour-level ATP data, so the margin should be read as directional rather than precise.

On serve, Ivanov actually holds a slight numeric edge, winning 67% of his service points to Chidekh's 64%. Return numbers are close to a wash (39% Chidekh, 38% Ivanov), meaning neither player is positioned to consistently break the other — this points to a match that could hinge on tight service holds rather than one player's return dominance.

The recent form picture cuts against the favorite tag: Ivanov is 6-4 over his last 10 with a live 4-match winning streak, while Chidekh is 4-6 with just 2 wins in a row. Momentum, not just rating, matters in best-of-three Challenger matches, and right now Ivanov is playing with more rhythm and confidence than his Elo number alone suggests.

Both players are one day removed from their last match, so neither carries a rest-day disadvantage. But workload differs: Ivanov has played 4 matches in the last 14 days against Chidekh's 2, a heavier recent load that could show up in physical freshness over a longer match, giving Chidekh a modest edge here.

The model gives Chidekh 63% to win, but the market prices him at 69% (odds of 1.45), producing a -9.2% expected value. That gap means the market is more confident in the favorite than this Elo-based estimate — backing Chidekh here is not a value bet by this model's math.

This is a soft Challenger market, so the discrepancy could reflect real information the market has (form, matchup nuance) that a pure Elo number doesn't fully capture. Given Ivanov's superior serve numbers and recent form, treat Chidekh's 'favorite' status as an Elo signal only, not a mispriced opportunity.