Warren Schaeffer
MANAGER · NL West

Warren Schaeffer

Colorado Rockies March 26, 2026 – Present Active
Lineup cost 3.25 R
Record 43-62
Games 111

Decision cost by category

Record
43-62
wins-losses
Games
111
with decision data
Lineup
3.25 R 0.03 R/G
Bunts
1.73 R 0.02 R/G
IBBs
3.30 R 0.03 R/G
Relievers
25.23 R 0.24 R/G

Season to date · categories cover different scopes and aren't summed into a total — reliever selection is high-leverage spots only; the Relievers leaderboard shows a rolling 30-day window.

Cost by category

Colorado Rockies cost themselves 3.25 R from lineup decisions, 25.23 R from high-leverage reliever selection, 1.73 R from bunts, 3.30 R from intentional walks.

LINEUP DECISIONS · 3.25 R RELIEVER SELECTION · 25.23 R BUNTS · 1.73 R INTENTIONAL WALKS · 3.30 R

Season to date · shown per category, not summed — reliever selection is high-leverage spots only (the Relievers board uses a rolling 30-day window).

How this compares — league ranking

Lineup decisions

Warren Schaeffer ranks 22nd of 30 managers in MLB.

  1. 1 Dave Roberts LAD 1.34 R
  2. 2 John Schneider TOR 1.60 R
  3. 3 Craig Stammen SD 1.73 R
  4. 22 Warren Schaeffer COL 3.25 R
  5. 28 Carlos Mendoza NYM 4.24 R
  6. 29 Joe Espada HOU 4.57 R
  7. 30 Will Venable CWS 4.91 R

Bunt decisions

Warren Schaeffer ranks 13th of 30 managers in MLB.

  1. 1 Aaron Boone NYY 0.28 R
  2. 2 Don Kelly PIT 0.56 R
  3. 3 Craig Counsell CHC 0.65 R
  4. 13 Warren Schaeffer COL 1.73 R
  5. 28 Kevin Cash TB 3.63 R
  6. 29 Torey Lovullo AZ 3.64 R
  7. 30 Pat Murphy MIL 3.77 R

Intentional walks

Warren Schaeffer ranks 24th of 30 managers in MLB.

  1. 1 Joe Espada HOU 0.49 R
  2. 2 Clayton McCullough MIA 0.88 R
  3. 3 Chad Tracy BOS 0.68 R
  4. 24 Warren Schaeffer COL 3.30 R
  5. 28 Kurt Suzuki LAA 3.96 R
  6. 29 Dave Roberts LAD 3.95 R
  7. 30 Pat Murphy MIL 4.78 R

Game-by-game breakdown

Last 7 in tenure · Δ R/G
Aug 3 vs TB L Ian Seymour 9-13 +0.00 Aug 2 vs KC W Seth Lugo 8-1 +2.50
⚐ Pulled too late cost ~2.50 R
 Aug 1 vs KC W Luinder Avila 12-6 +0.95
⚐ Pulled too late cost ~0.95 R
 Jul 31 vs KC W Michael Wacha 3-1 +0.88
⚐ Lineup mishaps cost ~0.69 R
 Jul 29 @ SD L Griffin Canning 1-3 +3.74
⚐ Lineup mishaps cost ~3.72 R
 Jul 28 @ SD L Michael King 7-8 +1.10
⚐ Pulled too late cost ~1.10 R
 Jul 26 @ MIL L Jacob Misiorowski 2-11 +2.08
⚐ Pulled too late cost ~1.74 R

Most costly decisions

Flagged · click for detail
JUL 29 · @ SD +3.74 R/G
Lineup mishaps cost ~3.72 R
vs Griffin Canning · L 1-3
AUG 2 · vs KC +2.50 R/G
Pulled too late cost ~2.50 R
vs Seth Lugo · W 8-1
JUL 26 · @ MIL +2.08 R/G
Pulled too late cost ~1.74 R
vs Jacob Misiorowski · L 2-11
JUL 28 · @ SD +1.10 R/G
Pulled too late cost ~1.10 R
vs Michael King · L 7-8

Tenure summary

Warren Schaeffer manages the Colorado Rockies, with their current tenure beginning March 26, 2026.

Through 111 games of decision data, their tactical decisions cost the team an estimated 8.28 R across lineup construction, bunt strategy, and intentional walks. Lineup decisions accounted for 3.25 R of that — the largest single category.

The team's 43-62 record places them 19 games under .500. Schaeffer has called 14 sacrifice bunts (1.73 R in expected runs). Intentional walks have been issued 17 times for an expected cost of 3.30 R.

Deep analytical views

The overview above is the SEO surface. Each link below opens the interactive analyzer for that decision type — sortable lists, per-game breakdowns, and the underlying numbers.

Keep reading

Related

How this is calculated

Stats reflect only Warren Schaeffer's tenure as Rockies manager — events from before the start date or after the end date are excluded. Lineup cost is the difference between an optimized batting order and the one actually used, summed across regular-season games. Bunt and intentional-walk costs come from per-decision run-expectancy deltas. Pitching cost is the sum of pull-timing and reliever-selection runs lost. Costs are shown as a season total and a per-game rate (R/G); rankings compare this tenure's per-game rate against the league-wide distribution of current and recent manager tenures. RunsLeft does not assign letter grades — the costs and rankings are descriptive analytics.

Read the full methodology. Career managing history coming in v2 with Lahman integration.

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