Extra Inning Baseball

One inning. Three outs. Every run matters.

Set a whole-dollar bet, choose a risk mode, and build the highest run total possible. The inning ends on the third out or immediately when the 10-run maximum is reached.

Risk Modes And Return To Player

Mode	Profile	Theoretical RTP	10-Run Max
Low	Steadier payout curve	96.03%	70×
Medium	Balanced volatility	96.03%	105×
High	Highest volatility	96.04%	225×

RTP is a theoretical long-term average calculated from the current game math model; an individual inning can return more or less.

Payout Multipliers By Final Run Total

Runs	Low	Medium	High
0	0×	0×	0×
1	2×	1.91×	1.5×
2	2.4×	2.43×	2.15×
3	3×	2.97×	2.76×
4	3.93×	3.84×	3.97×
5	4.95×	5.02×	4.93×
6	6.45×	7.43×	9.37×
7	13.9×	10.45×	15.58×
8	29.6×	29.13×	44.4×
9	38×	49.31×	78.91×
10 · Max	70×	105×	225×

The awarded multiplier is based on the final run total. Seven or more runs triggers the Big Win presentation.

How To Play

Choose Low, Medium, or High risk and set your bet.
Press Play to lock the bet and begin the inning.
Press Swing for each pitch until three outs or 10 runs.
Your final run total determines the payout multiplier.

Hits, Runners And Outs

Singles, doubles, triples, walks, errors, and home runs advance runners according to the displayed play.

Strikeouts, robbed hits, close plays, and other out presentations all count as one out.

Balance And Bets

The selected stake and risk mode lock after Play. One stake is charged per inning.

Any winning payout is credited after the terminal swing is settled.

Interrupted Play

Accepted innings are stored by round. If the connection drops, reload the game to restore the last confirmed inning state.

Repeated network requests do not create an additional stake or duplicate the same swing result.

Game v1.0.0 · Math EI_BASEBALL_2026_03_B Server-authoritative outcomes · HMAC-SHA256 fairness record · Maximum bet $10,000

Auto Sim

Only one auto mode can be on at a time. You can change it here, or hold Play/Swing on phone and right-click Play/Swing on computer.

Auto Sim Inning: stays on until you turn it off. Press Play once and it sims that inning.

Auto Sim 5 Innings: sims five innings, then turns off.

Auto Sim 10 Innings: sims ten innings, then turns off.

Payouts