Market comparison
European Open: Jan-Lennard Struff vs Zizou Bergs
2 venues · 17 outcome rows · 1 comparable lines · event identity linked · 0 verified parity · active
Polymarket
Open venue ↗16 outcomes · $11K reported volume
Observed 1m ago
Recorded venue end date: Oct 30, 2026
Kalshi
Open venue ↗2 outcomes · $3K reported volume
Observed 2m ago
Recorded venue end date: Nov 6, 2026
Known rule differences between venues
- Postponement: Kalshi resolves to a fair price if the game does not start within 48 hours of the scheduled time (tennis: not finished within two weeks); Polymarket stays open until the game is played and resolves 50-50 only if it is cancelled with no make-up (UFC/tennis: ~14 days).
- Ties and draws in two-way sports (NFL, college football, UFC no-contest): both venues pay 50/50.
- Soccer: both settle on 90 minutes plus stoppage time; extra time and penalties excluded.
- Tennis: Kalshi requires a ball to be played and pays the winner; Polymarket pays the player who advances, including on retirement. A pre-match walkover is a fair price on Kalshi, 50-50 on Polymarket.
- UFC: Kalshi ignores result changes after expiry; Polymarket follows the official UFC result.
- Polymarket two-way moneylines are one contract priced on the first-named side; the other side is its complement (recorded as a derived relation, not a link).
A shared identity alone does not make a price difference executable.
| Outcome | Polymarket | Kalshi | Difference |
|---|---|---|---|
Struff Partial parityPayoffs match in ordinary outcomes; see the rule differences above. | 1.5 pp | ||
Completed Match Not alignedNo persisted outcome identity connects these venue contracts. | — | — | |
European Open: Jan-Lennard Struff vs Zizou Bergs Set Handicap +/-1.5 Not alignedNo persisted outcome identity connects these venue contracts. | 85.5% Bid 78.0% · Ask 93.0% European Open: Jan-Lennard Struff vs Zizou Bergs Set 1 O/U 8.5 Open Polymarket ↗ | — | — |
European Open: Jan-Lennard Struff vs Zizou Bergs Set Handicap +/-1.5 Not alignedNo persisted outcome identity connects these venue contracts. | 62.5% Bid 58.0% · Ask 67.0% European Open: Jan-Lennard Struff vs Zizou Bergs Match O/U 21.5 Open Polymarket ↗ | — | — |
European Open: Jan-Lennard Struff vs Zizou Bergs Set Handicap +/-1.5 Not alignedNo persisted outcome identity connects these venue contracts. | 61.0% Bid 55.0% · Ask 67.0% European Open: Jan-Lennard Struff vs Zizou Bergs Set 1 O/U 9.5 Open Polymarket ↗ | — | — |
European Open: Jan-Lennard Struff vs Zizou Bergs Set Handicap +/-1.5 Not alignedNo persisted outcome identity connects these venue contracts. | 54.5% Bid 54.0% · Ask 55.0% European Open: Jan-Lennard Struff vs Zizou Bergs Match O/U 22.5 Open Polymarket ↗ | — | — |
European Open: Jan-Lennard Struff vs Zizou Bergs Set Handicap +/-1.5 Not alignedNo persisted outcome identity connects these venue contracts. | 52.5% Bid 52.0% · Ask 53.0% European Open: Jan-Lennard Struff vs Zizou Bergs Game Spread +/-2.5 Open Polymarket ↗ | — | — |
European Open: Jan-Lennard Struff vs Zizou Bergs Set Handicap +/-1.5 Not alignedNo persisted outcome identity connects these venue contracts. | 48.0% Bid — · Ask 96.0% European Open: Jan-Lennard Struff vs Zizou Bergs Set 2 O/U 8.5 Open Polymarket ↗ | — | — |
European Open: Jan-Lennard Struff vs Zizou Bergs Set Handicap +/-1.5 Not alignedNo persisted outcome identity connects these venue contracts. | 48.0% Bid — · Ask 96.0% European Open: Jan-Lennard Struff vs Zizou Bergs Set 2 O/U 10.5 Open Polymarket ↗ | — | — |
European Open: Jan-Lennard Struff vs Zizou Bergs Set Handicap +/-1.5 Not alignedNo persisted outcome identity connects these venue contracts. | 48.0% Bid — · Ask 96.0% European Open: Jan-Lennard Struff vs Zizou Bergs Set 2 O/U 9.5 Open Polymarket ↗ | — | — |
European Open: Jan-Lennard Struff vs Zizou Bergs Set Handicap +/-1.5 Not alignedNo persisted outcome identity connects these venue contracts. | 45.5% Bid 45.0% · Ask 46.0% European Open: Jan-Lennard Struff vs Zizou Bergs Match O/U 23.5 Open Polymarket ↗ | — | — |
European Open: Jan-Lennard Struff vs Zizou Bergs Set Handicap +/-1.5 Not alignedNo persisted outcome identity connects these venue contracts. | 43.5% Bid 43.0% · Ask 44.0% European Open: Jan-Lennard Struff vs Zizou Bergs Set Handicap +/-1.5 Open Polymarket ↗ | — | — |
European Open: Jan-Lennard Struff vs Zizou Bergs Set Handicap +/-1.5 Not alignedNo persisted outcome identity connects these venue contracts. | 38.0% Bid 37.0% · Ask 39.0% European Open: Jan-Lennard Struff vs Zizou Bergs Total Sets: O/U 2.5 Open Polymarket ↗ | — | — |
European Open: Jan-Lennard Struff vs Zizou Bergs Set Handicap +/-1.5 Not alignedNo persisted outcome identity connects these venue contracts. | 38.0% Bid 37.0% · Ask 39.0% European Open: Jan-Lennard Struff vs Zizou Bergs Set 1 Winner Open Polymarket ↗ | — | — |
European Open: Jan-Lennard Struff vs Zizou Bergs Set Handicap +/-1.5 Not alignedNo persisted outcome identity connects these venue contracts. | 37.5% Bid 36.0% · Ask 39.0% European Open: Jan-Lennard Struff vs Zizou Bergs Set 2 Winner Open Polymarket ↗ | — | — |
European Open: Jan-Lennard Struff vs Zizou Bergs Set Handicap +/-1.5 Not alignedNo persisted outcome identity connects these venue contracts. | 37.5% Bid 36.0% · Ask 39.0% European Open: Jan-Lennard Struff vs Zizou Bergs Set 1 O/U 10.5 Open Polymarket ↗ | — | — |
Zizou Bergs Not alignedNo persisted outcome identity connects these venue contracts. | — | — |
Struff
Partial parityPayoffs match in ordinary outcomes; see the rule differences above.
Polymarket
Kalshi
Price difference 1.5 pp
Completed Match
Not alignedNo persisted outcome identity connects these venue contracts.
Polymarket
Kalshi
—
European Open: Jan-Lennard Struff vs Zizou Bergs Set Handicap +/-1.5
Not alignedNo persisted outcome identity connects these venue contracts.
Polymarket
85.5%
Bid 78.0% · Ask 93.0%
European Open: Jan-Lennard Struff vs Zizou Bergs Set 1 O/U 8.5
Open Polymarket ↗Kalshi
—
European Open: Jan-Lennard Struff vs Zizou Bergs Set Handicap +/-1.5
Not alignedNo persisted outcome identity connects these venue contracts.
Polymarket
62.5%
Bid 58.0% · Ask 67.0%
European Open: Jan-Lennard Struff vs Zizou Bergs Match O/U 21.5
Open Polymarket ↗Kalshi
—
European Open: Jan-Lennard Struff vs Zizou Bergs Set Handicap +/-1.5
Not alignedNo persisted outcome identity connects these venue contracts.
Polymarket
61.0%
Bid 55.0% · Ask 67.0%
European Open: Jan-Lennard Struff vs Zizou Bergs Set 1 O/U 9.5
Open Polymarket ↗Kalshi
—
European Open: Jan-Lennard Struff vs Zizou Bergs Set Handicap +/-1.5
Not alignedNo persisted outcome identity connects these venue contracts.
Polymarket
54.5%
Bid 54.0% · Ask 55.0%
European Open: Jan-Lennard Struff vs Zizou Bergs Match O/U 22.5
Open Polymarket ↗Kalshi
—
European Open: Jan-Lennard Struff vs Zizou Bergs Set Handicap +/-1.5
Not alignedNo persisted outcome identity connects these venue contracts.
Polymarket
52.5%
Bid 52.0% · Ask 53.0%
European Open: Jan-Lennard Struff vs Zizou Bergs Game Spread +/-2.5
Open Polymarket ↗Kalshi
—
European Open: Jan-Lennard Struff vs Zizou Bergs Set Handicap +/-1.5
Not alignedNo persisted outcome identity connects these venue contracts.
Polymarket
48.0%
Bid — · Ask 96.0%
European Open: Jan-Lennard Struff vs Zizou Bergs Set 2 O/U 8.5
Open Polymarket ↗Kalshi
—
European Open: Jan-Lennard Struff vs Zizou Bergs Set Handicap +/-1.5
Not alignedNo persisted outcome identity connects these venue contracts.
Polymarket
48.0%
Bid — · Ask 96.0%
European Open: Jan-Lennard Struff vs Zizou Bergs Set 2 O/U 10.5
Open Polymarket ↗Kalshi
—
European Open: Jan-Lennard Struff vs Zizou Bergs Set Handicap +/-1.5
Not alignedNo persisted outcome identity connects these venue contracts.
Polymarket
48.0%
Bid — · Ask 96.0%
European Open: Jan-Lennard Struff vs Zizou Bergs Set 2 O/U 9.5
Open Polymarket ↗Kalshi
—
European Open: Jan-Lennard Struff vs Zizou Bergs Set Handicap +/-1.5
Not alignedNo persisted outcome identity connects these venue contracts.
Polymarket
45.5%
Bid 45.0% · Ask 46.0%
European Open: Jan-Lennard Struff vs Zizou Bergs Match O/U 23.5
Open Polymarket ↗Kalshi
—
European Open: Jan-Lennard Struff vs Zizou Bergs Set Handicap +/-1.5
Not alignedNo persisted outcome identity connects these venue contracts.
Polymarket
43.5%
Bid 43.0% · Ask 44.0%
European Open: Jan-Lennard Struff vs Zizou Bergs Set Handicap +/-1.5
Open Polymarket ↗Kalshi
—
European Open: Jan-Lennard Struff vs Zizou Bergs Set Handicap +/-1.5
Not alignedNo persisted outcome identity connects these venue contracts.
Polymarket
38.0%
Bid 37.0% · Ask 39.0%
European Open: Jan-Lennard Struff vs Zizou Bergs Total Sets: O/U 2.5
Open Polymarket ↗Kalshi
—
European Open: Jan-Lennard Struff vs Zizou Bergs Set Handicap +/-1.5
Not alignedNo persisted outcome identity connects these venue contracts.
Polymarket
38.0%
Bid 37.0% · Ask 39.0%
European Open: Jan-Lennard Struff vs Zizou Bergs Set 1 Winner
Open Polymarket ↗Kalshi
—
European Open: Jan-Lennard Struff vs Zizou Bergs Set Handicap +/-1.5
Not alignedNo persisted outcome identity connects these venue contracts.
Polymarket
37.5%
Bid 36.0% · Ask 39.0%
European Open: Jan-Lennard Struff vs Zizou Bergs Set 2 Winner
Open Polymarket ↗Kalshi
—
European Open: Jan-Lennard Struff vs Zizou Bergs Set Handicap +/-1.5
Not alignedNo persisted outcome identity connects these venue contracts.
Polymarket
37.5%
Bid 36.0% · Ask 39.0%
European Open: Jan-Lennard Struff vs Zizou Bergs Set 1 O/U 10.5
Open Polymarket ↗Kalshi
—
Zizou Bergs
Not alignedNo persisted outcome identity connects these venue contracts.
Polymarket
—
Kalshi
Prices are shown as percentages of a $1 payout. “pp” means percentage points. A dash means data is unavailable.