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NPB·Thu 5:00 AM ET

Chiba Lotte Marines vs Saitama Seibu Lions

Saitama Seibu Lions is the current favorite at $0.68 ask on Kalshi and $0.83 ask on Polymarket — an implied ≈76% chance. Prices as of 06:54 UTC on Jul 13, 2026, delayed about five minutes. Source markets: Kalshi · Polymarket. Resolution follows each venue's own market terms.

Curious how long a gap like this stays open? We measured it.

Chiba Lotte Marines

NPB

Thu 5:00 AM ET

Saitama Seibu Lions
55%60%65%70%12:23 AM12:34 AM12:49 AM1:04 AM1:19 AM67¢57¢

Moneyline

Chiba Lotte Marines10¢ gap
Kalshi67¢Polymarket57¢
Saitama Seibu Lions15¢ gap
Kalshi68¢Polymarket83¢

Prices delayed about five minutes. Each venue's best ask per outcome; Kalshi asks are derived from its NO bids (ask = $1 minus the bid). Kalshi volume counts contracts, Polymarket volume is in dollars. Real-time prices and the full depth ladder are available via the WebSocket stream with an API key. Feed reference DINO-XKQZ7-9182.