Quick Matchup Summary
Pre-Flop Favorite:
K4o (74.59% Equity)
•
Win Probabilities: J4o: 23.55% • K4o: 72.72% • Tie: 3.72%
This matchup is heavily dominated, with the favorite holding a commanding statistical edge prior to the flop.
Based on 1.7M+ Monte Carlo simulations
Odds Methodology »
Jack Four Unsuited vs King Four Unsuited - Odds Of Winning
 |
|
 |
| Jack Four Unsuited (J4o) |
|
King Four Unsuited (K4o) |
| 23.55% |
Win |
72.72% |
| 3.72% |
Tie |
3.72% |
| 25.41% |
Equity |
74.59% |
Jack Four Unsuited vs King Four Unsuited - Limit Poker Hand Ratings
Jack Four Unsuited vs King Four Unsuited - Winning Hand Breakdown
 |
|
 |
| Jack Four Unsuited |
|
King Four Unsuited |
| 0 |
High Card |
23,126,400 |
| 15,187,968 |
One Pair |
66,068,400 |
| 17,409,384 |
Two Pair |
32,236,488 |
| 3,079,920 |
Three Of A Kind |
6,383,280 |
| 2,997,096 |
Straight |
1,331,784 |
| 2,631,984 |
Flush |
2,940,960 |
| 2,106,972 |
Full House |
2,228,796 |
| 106,920 |
Four Of A Kind |
147,312 |
| 35,196 |
Straight Flush |
25,884 |
Strategic Breakdown: J4o vs K4o
K4o enters this matchup as the pre-flop favorite with 74.59% equity, while J4o trails at 25.41% (with 3.72% tie probability).
Pre-Flop Equity Distribution
- J4o Direct Win: 23.55%
- K4o Direct Win: 72.72%
- Split Pot / Tie: 3.72%
- Statistical Edge:
+49.18% for K4o
Flop Probability Benchmarks
- Set-Mining (Pocket Pairs): 11.8% to flop a set (7.5 to 1 against).
- Flopping a Flush (Suited): 0.84% (118 to 1); Flush draw: 10.9% (8 to 1).
- Connecting on Flop (Unpaired): ~32.4% chance to pair at least one hole card.
- Variance Rating:
Moderate Variance
Frequently Asked Questions: J4o vs K4o
K4o holds the statistical advantage with 74.59% equity and a 72.72% win rate. J4o has 25.41% equity and wins 23.55% of the time, with a 3.72% chance of splitting the pot.
Pre-flop equities represent full five-card river run-outs across all 1.7 million combinatorial boards. However, the three-card flop accounts for roughly 71% of a hand's final texture. When the flop brings cards that coordinate with the underdog's holdings (such as straight or flush draws, or hitting an overcard), the trailing hand's equity can surge past 65–75% on the turn.
In this exact matchup, the tie probability is 3.72%. The underdog has a direct win probability of 23.55%, meaning the trailing hand will overturn the favorite roughly 1 in every 4.2 showdowns.
In deep-stacked cash games (100bb+), position and post-flop implied odds dictate whether calling pre-flop raises is profitable. In tournament play with shallower stack depths (under 25bb), stack-to-pot ratios (SPR) shrink dramatically, making all-in shoves and 3-bet commitments mathematically dictated by pre-flop push/fold equity rather than post-flop maneuvering.