Roland Garros, Qualification ATP: Tom Gentzsch vs Roman Safiullin

Platform comparison

Active sub-markets

Market context

Tom Gentzsch and Roman Safiullin are due to meet in the French Open men’s qualifying draw, with Safiullin listed as the clear pre-match favourite on bookmaker boards. BetMGM had Safiullin at 1.26 and Gentzsch at 3.60, which translates to roughly 79% versus 28% before margin; the same gap is broadly consistent with the near-zero crowd price on a market that currently shows 0% YES for Gentzsch. That makes the comparison to exchange-style pricing important: on Kalshi the contract settles at binary market price rather than decimal odds, while Betfair and Smarkets typically quote a probability-equivalent price and net out commission differently, so the headline number can look similar even when the realised edge is not.

The main historical frame is that both players have progressed through qualifying without dropping a set, so the market is effectively weighing pedigree against a lighter run rather than recent set scorelines. A recent preview from Tennistonic noted that both men had played two matches and that Safiullin had spent more time on court, which can matter on Roland Garros clay if the match becomes physical. Because this is a qualification-final style spot, traders should watch for late scheduling changes, court assignment, and any walkover or retirement risk; Flashscore, Sofascore and LiveScore were all carrying the fixture on Court 6 in Paris, which usually means the market will move only if there is a confirmed withdrawal or a visible interruption to play.

For platform comparison, the same event can look different depending on venue: Polymarket-style markets reflect order flow, Kalshi uses regulated event-contract pricing with KYC access, and Betfair or Smarkets embed commission into matched prices. On this specific matchup, Safiullin’s bookmaker price implies a high chance of progression, so any Gentzsch support on exchanges would usually need either a delay, injury concern, or a strong live signal to justify a material reprice before the settlement window closes.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares Roland Garros, Qualification ATP: Tom Gentzsch vs Roman Safiullin specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. Live odds come from the Polymarket order book; the other venues' contract details are maintained manually because their APIs aren't directly comparable. Every CTA routes to PolyGram, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.

Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.

FAQ

Where can I trade this market with the lowest fees?

On PolyGram, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

PolyGram is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

What does it cost to trade on PolyGram?

Zero. PolyGram routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.