Players / Player profile
PIT · AAA · 3B

Grae Kessinger

Age 29 B/T R/R 6′1″, 204 lb USA MLB debut 2023
Pittsburgh org

This winter

What the Winter Plan does with Kessinger: its decisions feed, the dated moves and the briefs

Likely a minor-league free agent after the World Series.

Keystone’s estimate: veteran on a minor-league deal (signed Jul 8, 2026); those deals usually run through the season.

Development · trends & plan

Tracked levels only. Monthly values; gaps mark the offseason. The number beside each line is its last month, with that month’s sample (faded under 50 PA or 150 pitches), not the season.

Trends · Triple-A

Chase rate 42% Sep ’26 · 16 PA Apr ’25 – Sep ’26
Zone contact 86% Sep ’26 · 16 PA Apr ’25 – Sep ’26
Exit velocity (avg) 80.4 mph Sep ’26 · 16 PA Apr ’25 – Sep ’26
xwOBA .110 Sep ’26 · 16 PA Apr ’25 – Sep ’26
Strikeout rate 31% Sep ’26 · 16 PA Apr ’25 – Sep ’26

Fielding

2027 rating at every position he can play · OAA by position · range by direction · tools. Same engine as the Fielding Lab and the Winter Plan.

2027 rating by position · best fit first, on the total with the position’s worth
3B +0.1prior +2.6
2B −1.9prior +0.6
1B +5.6prior −6.9
Outs Above Average by position
SeasonPosOAARangeArm, DPRunsBatters
20241B000.00.023
2024SS000.00.047
20242B000.00.064
20243B00+0.1+0.1115
20233B+10+0.1+0.171
20232B+10+0.1+0.171
20231B00−0.3−0.3106
2023SS+2+1+0.2+1.2162

Runs = range plus his arm and double-play runs spread over his positions by outs (Fielding Run Value, from 2023): what the rating counts.

Range by direction (OAA at 3B)
2024 · 3B In (charging) 0Back 0Toward 3B line 0Toward 1B line 0vs. RHH 0vs. LHH 0
Tools (percentile among MLB fielders)
Arm strength —
Sprint speed —
Zone rating (Keystone expected outs)
SeasonZoneBallsOuts vs. exp.
Too few balls in his zone.

The zone rating counts every ball hit to his part of the field while he played there, his club’s positioning included; Savant OAA uses his actual starting spot and is the better individual grade. They agree best in the outfield. See the model card.

Compare in the Fielding Lab →

Triple-A tracking · 2026 percentiles

vs. 461 Triple-A hitters (150+ PA) · 156 tracked PA · the share he beats, so higher is better (less chasing, fewer strikeouts)

Exit velo (avg) 84.4 Exit velo (avg): 84.4, 14th percentile
Zone contact 85% Zone contact: 85%, 65th percentile
Chase % 26% Chase %: 26%, 57th percentile
Strikeout % 25.6% Strikeout %: 25.6%, 30th percentile

Minor leagues

MLB Stats API · public box-score data

SeasonLevelLevelTeamAgeGPA / IPPA / IP ·Line
2026A+A+Brooklyn Cyclones28629 PA 29 PA · .150/.414/.300 · 0 HR · 31.0% K · 20.7% BB
2026AAAAAAIndianapolis Indians2847159 PA 159 PA · .116/.215/.174 · 1 HR · 25.2% K · 9.4% BB
2026ROKROKFCL Mets28414 PA 14 PA · .222/.500/.667 · 1 HR · 21.4% K · 35.7% BB
2025AAAAAAReno Aces271147 PA 47 PA · .235/.447/.324 · 0 HR · 25.5% K · 27.7% BB

Prospect Pipeline: Perf+ 75 over his 2026 season (202 PA, mostly AAA), 3.1 years older than his level. Tag: Org depth. Prospects →

Keystone is an independent portfolio project. It is not affiliated with Major League Baseball or any club. Data: MLB Stats API, Baseball Savant, FanGraphs. Used under their terms for individual, non-commercial use.