Laz Diaz has 142 home-plate games in our MLB database. His games average 8.49 combined runs against a league average of 8.89 — the tables below break that down by season and show his most recent games. Umpire tendencies are one small input to our MLB totals model, never a betting rule on their own.
No upcoming plate assignment on record — MLB publishes umpire crews on game day, so check back in the afternoon (US time).
| Season | Games | Avg total runs | Over 8.5 % | Home win % |
|---|---|---|---|---|
| 2026 | 31 | 7.81 | 45.2% | 61.3% |
| 2025 | 31 | 9.13 | 45.2% | 71.0% |
| 2024 | 30 | 9.63 | 56.7% | 56.7% |
| 2023 | 20 | 7.25 | 25.0% | 80.0% |
| 2022 | 30 | 8.23 | 40.0% | 50.0% |
| Date | Matchup | Score | Total |
|---|---|---|---|
| Sep 26, 2026 | Pittsburgh Pirates @ Detroit Tigers | 3–4 | 7 |
| Sep 23, 2026 | New York Mets @ Texas Rangers | 6–3 | 9 |
| Sep 18, 2026 | Minnesota Twins @ Los Angeles Angels | 4–5 | 9 |
| Sep 05, 2026 | Arizona Diamondbacks @ Houston Astros | 4–3 | 7 |
| Sep 01, 2026 | Toronto Blue Jays @ Cleveland Guardians | 1–6 | 7 |
| Aug 28, 2026 | Miami Marlins @ Washington Nationals | 2–9 | 11 |
| Aug 23, 2026 | St. Louis Cardinals @ Philadelphia Phillies | 4–6 | 10 |
| Aug 18, 2026 | San Diego Padres @ New York Mets | 5–2 | 7 |
| Aug 07, 2026 | Cincinnati Reds @ Washington Nationals | 3–5 | 8 |
| Aug 05, 2026 | Los Angeles Dodgers @ Chicago Cubs | 1–5 | 6 |
Method: every number on this page is computed from the finished MLB games in our own model database (2022 onwards) where Laz Diaz was the recorded home-plate umpire. "Over 8.5 %" is the share of his games with 9+ combined runs; "Home win %" is how often the home team won with him behind the plate. Only umpires with at least 30 plate games get a page — smaller samples are noise. One honest caveat applies to everything here: even several seasons of plate games is a modest sample, and most deviation from the league average is variance, not a hidden edge.