Cole Sulser Is Quietly Earning Save Chances — And the Skills Back It Up

Cole Sulser just locked down his second save of the season, retiring the side in order against the Blue Jays, and his underlying numbers are starting to demand attention. At just 1% rostered, the 36-year-old Tampa Bay reliever is operating with a 1.77 FIP over the last seven days and a rising strikeout rate that suggests this isn't just noise.

The Signal: Strikeouts Are Spiking, and the FIP Is Elite

Here's what caught our algorithm's eye: Sulser's strikeout rate has jumped to 22.2% over the last seven days, up from 17.2% over 30 days. That's a meaningful uptick, and it's reflected in his rolling stat lines. Over his last 3 innings (7-day window), he's posted a 0.00 ERA with a 1.77 FIP. Stretch to the 14-day window — 6.3 innings — and you get a 0.00 ERA, 8.57 K/9, and a 1.67 FIP. That FIP is absurd for a reliever you can pick up for free in virtually every league.

The 30-day picture provides the full context: a 1.89 ERA, 6.29 K/9, and 2.75 FIP across 14.3 innings. Still strong. The trajectory here is what matters — each window gets better as you zoom in, and the skills indicators are tightening, not regressing.

WaiverScout Called This Early

Full transparency: we had Sulser classified as deprioritize on both April 12 and April 20, when his numbers weren't yet supporting a pickup. The signal has materially changed since then. His FIP has compressed from 2.75 over 30 days to 1.77 over the last week, and the strikeout rate is trending in the right direction. This is exactly how our system is designed to work — track, reassess, and escalate when the data shifts.

Role Context: Saves Are in Play

This is what elevates Sulser from a generic middle reliever watch to something more interesting. As CBS Sports noted, he just recorded his second save, and he looked dominant doing it. Tampa Bay's bullpen has been a committee operation, but Sulser is clearly earning trust with these recent outings. In a Rays pen that also features arms like Riley O'Brien and Abner Uribe, save opportunities may remain inconsistent — but Sulser is positioning himself as the guy Pete Fairbanks' absence or a bullpen reshuffling could benefit most.

It's worth noting that Razzball's rest-of-season projections still have him ranked as the #216 relief pitcher, essentially an afterthought. That gap between projections and recent performance is exactly where waiver wire value lives.

The Caveats

We're working with small samples here — early signal confidence only. Three innings in the 7-day window doesn't prove anything on its own. The 30-day K/9 of 6.29 is pedestrian, even if the recent 7-day spike is encouraging. Sulser is 36 years old, so there's no growth narrative — this is what he is, and the margin for error is thin. If the strikeout rate settles back toward its 30-day baseline, the FIP will follow it up.

Verdict: Watch

Don't rush to add Cole Sulser, but put him on your watch list immediately. Early signs suggest he could be emerging as Tampa Bay's preferred ninth-inning option, and a 1.77 FIP with a rising strikeout rate at 1% rostered is the kind of profile that becomes a must-add two weeks from now. If he records a third save this week or the K/9 sustains above 8.0 in the next 14-day window, the classification upgrades. For now, monitor his usage and wait for one more data point. The signal is real — it just needs confirmation.