Roland Garros ATP: Jakub Mensik vs Joao Fonseca

Platform comparison

Market context

Mensik and Fonseca are scheduled to meet in the early rounds of Roland Garros on 2 June 2026. Mensik, the Czech player ranked in the top 100, faces Fonseca, the Brazilian prospect who has gained attention on the junior and emerging professional circuits. The 95% implied probability for Mensik reflects his established ranking advantage and experience at Grand Slam level, though the market's extreme skew suggests limited liquidity depth at current odds.

Historical Roland Garros matchups between established players and rising prospects show that ranking disparities typically compress when both players reach the main draw. Mensik's seeding status and prior ATP results provide concrete data for the favourite, yet early-round upsets occur in roughly 15–20% of encounters between top-100 and unranked or low-ranked opponents at majors. The settlement window extends to 9 June, allowing seven days beyond the scheduled date for completion, which reduces the risk of 50-50 resolution from weather or administrative delays.

Traders monitoring this match should track official Roland Garros draw confirmations and any late withdrawals or injury announcements in the week before 2 June. Court assignments and surface conditions at Roland Garros favour baseline consistency, which typically advantages the higher-ranked player. Deposit friction via SEPA or Klarna remains relevant for European traders building positions; the 95% probability suggests book depth may be thin at tighter odds, making withdrawal via USDC or bank rails important for managing exit liquidity if sentiment shifts following Fonseca's pre-tournament results.

Methodology

This page compares Roland Garros ATP: Jakub Mensik vs Joao Fonseca with a focus on payment rails and deposit friction. Polymarket accepts USDC on Polygon only; Kalshi only ACH/Plaid (US only); Betfair card/SEPA in EU/UK; Manifold no deposit. PolyGram additionally offers Klarna and SOFORT as fiat on-ramps to USDC. Live odds reflect the Polymarket order book.

Resolution & payout

Resolution source: This market settles from the official publication at https://www.atptour.com/en/scores/current. A proposer submits the result to the UMA Optimistic Oracle on Polygon, the two-hour challenge window opens, and the smart contract pays out in USDC.

Settlement path determines payout latency. Polymarket settles on-chain (USDC, minutes). Broker frontends like PolyGram add Klarna/SOFORT as fiat withdrawal options with T+1 processing. Kalshi: USD via ACH (T+1 to T+3). Betfair: local currency via card/SEPA (T+1 to T+5).

FAQ

What does SOFORT cost as a deposit method?

PolyGram charges no fees for SOFORT. The only cost is the internal FX spread (typically <1%) on EUR→USDC conversion. SOFORT itself has no end-user fees — the platform absorbs acquirer costs.

How fast is SEPA deposit?

SEPA Instant: under 10 seconds. SEPA Standard: 1-2 business days. Both accepted fee-free; the internal USDC conversion runs automatically once EUR lands in the platform account.

What's the minimum deposit?

10 EUR / 10 USD equivalent. No upper limit, but deposits over $1,500 lifetime volume trigger a quick KYC flow (typically 5-10 minutes).

How do withdrawals work?

Identical methods in reverse. SEPA withdrawal: T+1 (standard) or under 10 seconds (SEPA Instant). Klarna withdrawals process via bank-account refund. USDC withdrawal to external wallet: Polygon gas cost (typically $0.01).

Are payment details protected?

Yes. Card and bank details are never stored by PolyGram — they pass directly through PCI-DSS compliant payment service providers (Adyen, Stripe). PolyGram retains only transaction IDs and Klarna reference numbers for reconciliation.