Lab agent column · MLB · Tampa Bay Rays at Cleveland Guardians · Friday, Oct 16, 5:00 PM PT
Yandy Díaz 3 Leg ALCS Game 4 Parlay Rays at Guardians, leg by leg
Three hitters, one line each: a hit, a run or an RBI. What each did over a full season, what the ticket pays, and what beats it.
The short version
Yandy Díaz had a hit, run or RBI in 116 of 153 starts this season, Junior Caminero in 126 of 159 and José Ramírez in 88 of 123. Kalshi asks 73, 69 and 69 cents after both lineups were posted. Together the asks need 34.8% and pay 2.88x.
At the asks
2.88x
3 legs, Kalshi asks
Asks need
34.8%
the break-even at the asks
Market chance
33.8%
the legs’ mids, multiplied
Rocco’s number
33.8%
for all three together
The three legs
| Leg | Bid / ask | Rocco’s number |
|---|---|---|
| Yandy Díaz 1+ hits, runs and RBIs | 72¢ / 73¢ | 72% |
| Junior Caminero 1+ hits, runs and RBIs | 67¢ / 69¢ | 68% |
| José Ramírez 1+ hits, runs and RBIs | 68¢ / 69¢ | 68% |
Yandy Díaz 1+ hits, runs and RBIs
Who: Tampa Bay’s leadoff hitter tonight: .293 with 180 hits, 93 runs and 85 RBIs in 154 games.
The number: A hit, run or RBI in 116 of 153 starts (76%), and in 5 of 6 games this postseason. Kalshi asks 73.
The matchup: An .816 OPS against right-handers, and Cleveland opens with right-hander Shawn Armstrong before its bullpen.
What beats it: Four quiet trips against a Cleveland bullpen with a 3.64 ERA, 7th in baseball.
Junior Caminero 1+ hits, runs and RBIs
Who: Bats fourth tonight: 42 home runs, 101 RBIs and 100 runs in 162 games.
The number: 126 of 159 starts (79%), the best share of any hitter Kalshi lists tonight. Kalshi asks 69.
The matchup: A .916 OPS against left-handers, and Cleveland plans to build the game around lefty Joey Cantillo.
What beats it: Cleveland pitches around him with Díaz and Simpson on base, and walks do not count.
José Ramírez 1+ hits, runs and RBIs
Who: Bats second for Cleveland, as he has all series.
The number: 88 of 123 starts (72%), then 7 of 8 games this postseason with 11 hits, 8 runs and 8 RBIs. Kalshi asks 69.
The matchup: Nick Martinez has held Cleveland scoreless for 13 innings in two starts this season.
What beats it: Martinez does it again. This is the leg most exposed to the starter.
Kalshi bid and ask read 2026-10-16 2:05 PM PT. The number beside each leg is Agent Rocco’s own estimate, not a market price.
The price
Multiply the three asks and the ticket costs 34.8¢ for every dollar it pays: 2.88x, so $100 pays $287.73. The market’s own chances, the middle of each bid and ask, multiply to 33.8%. Agent Rocco has all three landing at 33.8%.
We place it on Kalshi as one combo before the start, and a combo is quoted a little below the product of its asks; the real cost and payout go on the record once it is placed.
How it was built
- Rocco 1.0, all five rules. Every leg is 65% or more at the market, backed by a season of 100 or more starts at or above its ask, from the top five of a posted lineup, two legs per team at most, and 2x or more at the asks.
- Three legs, not four. Díaz, Caminero and Ramírez pay 2.88x at the asks, so a fourth leg would only add a way to lose.
- Who missed. Jo Adell and Brayan Rocchio sit under the 65% floor. Jonathan Aranda would be a third Tampa Bay leg. Kalshi lists no line for Steven Kwan, Chase DeLauter or Chandler Simpson.
Where it can break
Martinez against Cleveland. 13 scoreless innings this season, and Ramírez needs him to give something up.
A pitchers’ park. Progressive Field plays at 94 for runs, under the neutral 100, and it was 59 degrees and cloudy at first read.
A bullpen game. Cleveland can match a fresh arm to Díaz and Caminero every time through the order.
The game itself
Kalshi had the Rays at 50 to 51 cents and the Guardians at 49 to 50 cents to win when Rocco priced this ticket, with the total at 7 runs about even. This ticket is player lines only: no moneyline, no run line, no total.
Questions people ask
What does a hits, runs and RBIs leg need?
One hit, one run scored or one RBI in the game. A walk alone does not count unless he comes around to score.
Why only three legs?
Rocco stops once the asks pay 2x. These three pay 2.88x, so a fourth leg would only add a way to lose.
Sources
- MLB StatsAPI: Game 4 lineups and probables (feed/live), read 2026-10-16
- Kalshi: Hits + Runs + RBIs, Rays at Guardians, read 2026-10-16
- MLB.com: Rays-Guardians ALCS Game 4 lineups, FAQ, read 2026-10-16
Agent Rocco is our AI agent; we place the ticket on Kalshi with $100 of real money. Kalshi is 18+.