Texas 84 Calculator
Texas 84 is the 84-point domino game played in senior centers, church halls and living rooms across Texas, and keeping its score on paper is how marks get miscounted. This page is a scorekeeper for that game: enter each hand’s bid and the points the bidding team captured, and it settles whether the bid was made, awards the mark to the right team, and tracks both sides to the agreed winning total. One note before you start: this is a domino game scorer, not the Texas Instruments TI-84 graphing calculator. If the handheld calculator is what you came for, our T1-84 graphing simulator and quick T84 tool are the pages you want.
Match setup
Standard Texas 84 is first to 7 marks (per the sctexas.org rules); change the target if your group agreed something different.
Hand 1
| Hand | Bidder | Bid | Captured | Result | Mark to |
|---|
Scoring follows the Sun City Texas (sctexas.org) Texas 84 rules: bidding begins at 50, the bidding team must capture at least its bid, and a set hand awards the mark to the opponents. First to the agreed marks wins. This page scores the domino game; it is not affiliated with Texas Instruments.
Quick Answer
After two hands of our example, Team 1 leads 2 marks to 0. Hand 1: Team 1 bid 60 and captured 68, so the bid was made by 8 and the mark went to Team 1. Hand 2: Team 2 bid 65 but captured only 61, so the bid was set by 4 and the mark went to Team 1 as the opponents. The scorer above reproduces both hands exactly: type the bid and the captured points, and it awards the mark and updates the board.
Key takeaways
- Texas 84 is scored in marks, one per hand. Make your bid and your team takes the mark; get set and the opponents take it.
- Bidding runs 50 to 84. There are 84 count points in a hand, so a bid above 84 is impossible and the scorer refuses it.
- The standard match is first to 7 marks, changeable in the setup box before play starts.
- This page scores the domino game and is not affiliated with Texas Instruments or the TI-84 calculator.
How to score a hand with this tool
The scorer asks for exactly two numbers per hand, because that is all Texas 84 scoring needs. Here is the routine most tables settle into.
1. Set up the match
Type both team names and confirm the marks needed to win (7 by default). The scoreboard shows 0–0 and Hand 1.
2. Play the hand
Bid, name trump, and play the hand at the table exactly as usual. Nothing on this page changes how the game is played.
3. Enter bid and captured
Pick the bidding team, type its bid (50–84) and the points it actually captured (0–84). Add the trump as a note if you want it in the log.
4. Record and move on
Click Record hand. The scorer declares made or set, awards the mark, logs the hand, and advances to the next one. Undo last hand fixes a misheard total without retyping the match.
When a team reaches the winning total, the green banner names the winner and scoring locks until you start a new match. The Copy my results and Share results buttons turn the whole scorecard into plain text you can paste into the group chat.
The scoring rules this tool enforces
Every decision the scorer makes follows the Sun City Texas Texas 84 rules, which the Sun City Texas domino club publishes as its Texas 84 rules. The logic is short enough to state in full.
Made or set, decided by one comparison
Captured points at or above the bid means the bid was made, and the mark goes to the bidding team. One point short means the team was set, and the mark goes to the opponents. The scorer shows how far over or under: "made by 8" or "set by 4". It also prints what the opponents took, which is always 84 minus the captured points.
Bid made
Captured ≥ bid. The bidding team takes the mark. Example: bid 60, captured 68 – made by 8, mark to the bidding team.
Bid set
Captured < bid. The opponents take the mark. Example: bid 65, captured 61 – set by 4, mark to the opponents.
Bids are fenced to 50–84
Bidding begins at 50, and no hand holds more than 84 points, so the scorer rejects anything outside that range with a plain-English message. A bid of 84 means the team contracted to take every point in the hand. Captured points are fenced the same way, 0 to 84, and negatives are refused.
First to the agreed marks wins
The standard target is 7 marks, and the scorer locks the match the moment either side reaches it. If your group plays to 5 or 11, set that number before the first hand; it applies from then on, and the winner banner always names the winner's mark total first.
Worked example: two hands, verified in the tool
These two hands were recorded in the scorer above, and the outputs below are the tool's own words. Team names are the defaults, and the target is 7 marks.
Hand 1. Team 1 bids 60 and captures 68. 68 is at least 60, so the bid is made by 8. The mark goes to Team 1, and the opponents took 16 of the 84 points. The scorer prints: "Hand 1: Team 1 bid 60 and captured 68 points: bid made by 8. Mark to Team 1. Opponents took 16 of the 84 points." Scoreboard: Team 1 has 1 mark, Team 2 has 0.
Hand 2. Team 2 bids 65 but captures only 61. 61 is below 65, so the bid is set by 4. The mark goes to Team 1, the opponents, who took 23 of the 84 points themselves. The scorer prints: "Hand 2: Team 2 bid 65 but captured only 61 points: set by 4. Mark to Team 1. Opponents took 23 of the 84 points." Scoreboard: Team 1 has 2 marks, Team 2 has 0.
Two made bids later and the board would read 4–0. One more set hand against Team 2 would put Team 1 at 5. The match ends the instant a side reaches 7, which is when the green winner banner appears and further recording stops until a new match starts.
Where the 84 points in a hand come from
A hand holds 84 points because the game is played with two double-six sets, and the count dominoes add up to exactly that. The breakdown below is from the sctexas.org Texas 84 rules for four-player (two-team) play.
| Count dominoes (two sets) | Points |
|---|---|
| Two double fives (5-5, 5-5) | 20 |
| Two six-fours (6-4, 6-4) | 20 |
| Two four-ones (4-1, 4-1) | 10 |
| Two three-twos (3-2, 3-2) | 10 |
| Every double, 2 points each (12 doubles) | 24 |
| Total per hand | 84 |
This is why the scorer fences both inputs at 84: no team can capture more points than exist. If your table plays six-player Texas 84, the same 84 total applies with a slightly different count layout (the 5-blank counts, and each double is worth 1), but the bid/made/set/mark logic is identical, so the scorer works for both.
What other domino score tools get wrong
Generic domino apps are built for Block, Draw, All Fives and Mexican Train. Texas 84 is a bidding game, and that is where they fall over.
Bones (dominoscoreboard.app) is the strongest general scorekeeper I found: pass-and-play, undo, per-player stats, no ads on the free tier. But its five game modes contain no bidding game at all, so there is nowhere to enter a bid, nowhere to mark a set, and no notion of marks. Domino Tracker and Boneyard Tally are the same story: fine pip counters, no contract logic.
TileTally (dodouble.com) pairs free web calculators with genuinely good domino strategy writing, including a scorekeeper, but it tallies pips for block and draw games. It never asks who bid, because those games have no bids. The rules sites go the other way: pagat.com documents the 42 family (including 84 as a marks variant) and texas42.net teaches the game beautifully, but neither scores your table for you.
That leaves a gap this page fills: a free web scorer that speaks the game's own language. The winning moves are the bid fence at 50–84 so an illegal contract can never enter the log, the one-tap settlement that names made or set with the exact margin, the trump note for settling table arguments later, and a plain-text scorecard you can share without anyone installing an app.
Frequently asked questions
No. This page scores the Texas 84 domino game: bids, captured points, made and set hands, and marks. It has nothing to do with the Texas Instruments TI-84 graphing calculator and is not affiliated with Texas Instruments. If the handheld calculator is what you searched for, our T1-84 graphing simulator page is the one you want.
The bidding team names a bid from 50 to 84 and plays the hand. If it captures at least its bid, the bid is made and the mark goes to the bidding team. If it falls short, the bid is set and the mark goes to the opponents. Enter the bid and the captured points above and the scorer awards the mark for you.
Being set means the bidding team failed to capture its bid. A 65 bid with only 61 points captured is set by 4, and the mark goes to the other team. The scorer prints the shortfall and the opponents' take (84 minus captured) so the table can see exactly what happened.
That is the floor in the Sun City Texas Texas 84 rules this scorer follows: bidding begins at 50. With 84 points in play, 50 is the lowest contract the rules treat as meaningful. The scorer rejects any bid below 50 and any bid above 84.
Whatever your group agrees. The standard is first to 7 marks, which is the default in the setup box. Change "Marks to win" before the first hand if your table plays to a different total; the winner banner and the match lock follow the number you set.
Texas 84 uses two double-six sets. The count dominoes are the two double fives (20 points), the two six-fours (20), the two four-ones (10) and the two three-twos (10), plus 2 points for each of the 12 doubles (24). That is 20 + 20 + 10 + 10 + 24 = 84.
No. The trump dropdown is a note for the hand log only, so the table can settle later arguments about what was named. Scoring depends solely on the bid and the captured points.
Yes. Type the new names in the setup box and the scoreboard, the bidder dropdown and all future log rows update immediately. Hands already recorded keep the names they were scored under, so the log stays an honest record of the match.
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References
- Sun City Texas Community Association Domino Club. Dominos: Texas 84 (bidding begins at 50, 84-point count layout for two-team and three-team play, trump and trick structure). Accessed October 24, 2026.
- Pagat.com. 42 and Variations (84 as a marks variant of 42: 84 bid worth two marks, first to 7 marks winning the sitting). Accessed October 24, 2026.
- Pagat.com. Texas 88 (84/88-point trick-taking family rules, bidding structure, mark scoring). Accessed October 24, 2026.
- Glynn Hill. How 42 Should Be Played (bidding strategy, multi-mark hands, mark scoring conventions in the 42 family). Accessed October 24, 2026.
- TileTally. Dominoes, Done Right: Scoring, Odds, and Tile-Game Strategy (domino scorekeeping tools and set-reference data for the double-six games Texas 84 builds on). Accessed October 24, 2026.