Here are the prospects changing hands in last night’s deal between Seattle and Atlanta as evaluated by KATOH projection system. KATOH+ represents a player’s WAR projection over his first six years in the majors and includes said player’s Baseball America’s ranking as a variable.

*****

Alex Jackson, RF, Atlanta

Jackson has struggled to make contact ever since the Mariners popped him sixth overall back in 2014. He hit decently in his second crack at Low-A last year, but KATOH is alarmed by his 27% strikeout rate. The fact that he’s a right fielder who neither steals bases nor grades out well defensively also hurts his case. He’s hit for decent power, but the statistical negatives far outweigh the positives. Of course, Jackson was viewed as one of the best prospects in the country a mere two-and-a-half years ago, so it’s likely he still has some potential that isn’t showing up in his on-field performance. The traditional KATOH also projects him for 0.4 WAR.

KATOH+ Projection for first six years: 0.4 WAR

*****

Max Povse, RHP, Seattle

A 6-foot-8 righty, Povse pitched very well between High-A and Double-A last year. His 22% strikeout rate and 5% were both excellent, especially for a starting pitcher. Povse is already 23, but his numbers have been excellent and suggest he isn’t terribly far away from the big leagues. The traditional KATOH also projects him for 4.4 WAR.

KATOH+ Projection for first six years: 3.1 WAR

*****

Rob Whalen, RHP, Seattle

Whalen also pitched excellently in the minors last year, spinning a 2.40 ERA between Double-A and Triple-A before debuting with Atlanta. KATOH sees Whalen as a lower-upside player than Povse due to Whalen’s smaller stature and high-ish walk numbers. But he’s a relatively safe bet to at least fill a need. KATOH+ gives him a 74% chance of pitching in the big leagues over the next six years, though just a 20% chance of amassing more than 4 WAR. The traditional KATOH projects him for 3.3 WAR.

KATOH+ Projection for first six years: 2.8 WAR