Reference layer
Current snapshot
| Age | 26 |
| Height | 6' 5" |
| Weight | 238 lb |
| Debut | 2026-03-27 |
Player profile / Colorado Rockies
Tj Rumfield
1B · Bats/Throws L/R · 6' 5", 238 lb · Age 26
Club Colorado Rockies
Position 1B
Roster Active
Status Healthy / active roster
Traditional line
Season by season
| PA | R | H | HR | SB | AVG | OBP | SLG | OPS | |
|---|---|---|---|---|---|---|---|---|---|
| 2026 | 277 | 31 | 68 | 9 | 0 | .280 | .361 | .465 | .826 |
| 1 Seasons | 277 | 31 | 68 | 9 | 0 | .280 | .361 | .465 | .826 |
At a glance
Season percentile report
The headline weighs outcome stats (xwOBA, barrels); each bar averages its full strip group below. 100 = best in MLB.
40
Offense
percentile
percentile
Rolling projection
Preseason / current pace / Bayesian update
Rolling bands shrink current-season signal toward the preseason prior until the sample earns more weight.
| xwOBA preseason | 0.264 |
| xwOBA current pace | 0.332 |
| xwOBA rolling p50 | 0.303 |
| Observed weight | 57% |
xwOBA
0.262
0.281
0.303
0.324
0.344
wOBA
0.347
0.365
0.384
0.403
0.420
ISO
0.089
0.109
0.132
0.155
0.175
K%
13.1%
15.9%
19.0%
22.1%
24.9%
Live percentile strip
Current traits vs projection tick
100th = best in MLB.
Hitting · percentile strip
Barrel%4.7%
47
Exit velocity85.2
18
Hard-hit%35.0%
29
xBA0.308
33
xSLG0.489
43
xwOBA0.332
70
BB%9.2%
55
Bat speed67.1
22
K%13.9%
89
+69 vs proj
Defense · percentile strip
Outs Above Avg3.0 · 1B
86
Range Runs2.2 · 1B
78
Baserunning · percentile strip
Base Running Runs-2.4 · 1B
1
Sprint Speed24.8 · 1B
4
Mithrandir+
Plate skills: swing decisions and pitch-type resistance
Our research metrics for how this hitter controls the strike zone and handles each pitch family.
Avoids Bad ChasesST 62.4% · rebadged research
33
Avoids Bad TakesHPT 18.9% · rebadged research
91
Correct Decisions66.6% · rebadged research
53
SEAGER+ Plate Discipline103
64
Resists Breaking - horizontalwOBA 0.304 · borderline
16
Resists Breaking - verticalwOBA 0.275 · insufficient sample
66
Resists ChangeupwOBA 0.269 · validated thin sample
75
Resists Cutters + splitterswOBA 0.344 · insufficient sample
22
Resists FastballwOBA 0.379 · validated
5
Resists SinkerwOBA 0.351 · validated
71
Rolling form chart
xwOBA snapshot line
Live snapshot series; true 50/100 PA windows require PA-level logs
Spray profile
Field-coordinate spray profile
188 Statcast batted-ball coordinates from the pitch-event feed (2026). Direction profile remains as the v1 context layer when coordinate density is limited.
Zone profile
Aggregate zone heatmap
Aggregate zone metrics from seasonal Statcast leaderboards.
Bat tracking
Swing path, attack angle, bat speed
Aggregate Savant bat-tracking metrics; not per-swing motion capture. The full swing, with the recommended path overlaid, lives in the 3D Swing Simulator.
Live layer
Delta / regression
| xwOBA Δ | +0.012 |
| wOBA Δ | +0.064 |
negative regression
Regression watch
Running hot. Expect some cooling.
Rumfield’s wOBA sits at 0.384, but the quality of contact underneath says it should be 0.332 — a gap of 0.052, -1.8 standard deviations from the MLB norm over 295 PA. The results have outrun the underlying process; as the sample grows, expect the numbers to drift back toward the deserved level.
Mithrandir coverage
Module shelf
| Module | Cards | Latest | Signal |
|---|---|---|---|
| Hitting | 1 | 2026-05-23 | Impact contact was the main driver |
Projection links / recent games
Available detail
| Hitter Projections 20260.320 xwOBA | 6 HR | Projection |
| 2026-05-20 vs TEX0 HR | 1 RBI / 12 Ch | 0 E | 2-4 | RBI |
| 2026-04-20 vs LAD1 HR | 1 RBI / 9 Ch | 0 E | 1-4 | HR, RBI, R |
| 2026-04-17 vs LAD0 HR | 0 RBI / 7 Ch | 0 E | 0-4 | 2 K |
| 2026-04-15 @ HOU0 HR | 0 RBI / 0 Ch | 0 E | 0-4 | K |
| 2026-04-14 @ HOU0 HR | 0 RBI / 8 Ch | 0 E | 1-4 | BB |