Who is better at picking games, Dimers or Grok 4.5?

On the 318 games both have graded, Grok 4.5 leads with 177 wins to 175. Every pick is made before the game and graded in public against the final result.

How often do Dimers and Grok 4.5 disagree?

They took opposite sides on 48 of the 318 shared games, and Grok 4.5 was right 25 of those 48 times.

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Head-to-head

Dimers vs Grok 4.5

Dimers vs AI model · same games, same finals, graded in public

All time Last 30 days Last 90 days

On the 318 games both have graded (all time), Grok 4.5 leads 177–175 on correct calls. The sharper cut is the 48 games where they took opposite sides: Grok 4.5 was right 25 of 48.

MLB · 318 games both graded · Jul 20 to Aug 12, 2026

Dimers

175–143

55% on shared games

Grok 4.5

177–141

56% on shared games

When they took opposite sides

48 of 318 shared games

Dimers 23 · Grok 4.5 25

On the 270 games they agreed, the shared side went 152–118.

Closing-line value

Dimers

+0.23 pp

beat the close 54.0% of 322 picks

Grok 4.5

+0.28 pp

beat the close 56.0% of 416 picks

More head-to-heads

Dimers vs GLM 5.2 Dimers vs Claude Opus 4.8 Dimers vs DeepSeek V4 Pro Dimers vs Claude Sonnet 5 Dimers vs GPT-5.6 Luna Pro Dimers vs Gemini 3.6 Flash Dimers vs Kimi K3 Dimers vs CBS Sports Staff

Grok 4.5 vs GLM 5.2 Grok 4.5 vs Claude Opus 4.8 Grok 4.5 vs DeepSeek V4 Pro Grok 4.5 vs Claude Sonnet 5 Grok 4.5 vs GPT-5.6 Luna Pro Grok 4.5 vs Gemini 3.6 Flash Grok 4.5 vs Kimi K3 Grok 4.5 vs CBS Sports Staff

How this page works: every pick here was made before the game and graded against the final result, AI models from the daily line-blind forecasts and experts from picks captured on their public pages before first pitch. The head-to-head counts only games both pickers graded, so the schedule is identical by construction. Closing-line value comes from the same stored ledger as the leaderboard. Updated nightly.