Kyle Backhus

RP · L/L · age 28.6 · PHI

OCTOBER OK

Roster status
OPTIONED
Service thru 2025
0+113
Service now / projected
1+047 / 1+047
Option years left (2026)
3 (using one in 2026)
Assignments left this season
2 of 5
Contract (2027)
PRE-ARBITRATION / AUTO-RENEWAL
Acquired
Trade (ARI) Dec'25
Outrighted / DFA'd before
0 / 0
Contract
none listed

Next 90 days, by the model

Stays put
53%
Designated
25%
Optioned
14%
Traded
2%
Released or non-tendered
6%

Pushing the cut risk up: age (28.62) raises it, this season's WAR (0.06) raises it, roster status (3) raises it.

Context the model does not weigh: ZiPS projects 0.2 WAR, 0.1 WAR this season; 15 RP on the 40-man, of whom Brooks Raley, Tim Mayza, Jose Alvarado are headed to free agency.

Trained on every 40-man roster snapshot since 2011 and what happened in the following 90 days; it sees roster status, options, service, history and last season's line, not this season's performance or the club's intentions. How well it does.

Is there a job for him next year?

PHI returns 12 RP on the 40-man once 3 free agents leave; about 9 RP jobs survive a normal winter. By his own recent record he ranks 8th among the returners (0.1 WAR against a bar of 0.0), which the calibrated model turns into 66% kept through the tender deadline. Ranked by ZiPS and Steamer instead, which credit his longer track record, he is 8th (0.1 WAR, bar 0.1), worth 66% kept on the same model.

By recent record: returning RPProj. WAR
1. Jhoan Duran3.8
2. Orion Kerkering1.3
3. Jonathan Bowlan1.1
4. Brad Keller1.0
5. Tanner Banks0.7
6. Alex McFarlane0.7
7. Caleb Kilian0.4
8. Kyle Backhus0.1
9. Grant Holmanlast job0.0
10. Chase Shugart-0.2
11. Max Lazar-0.5
12. Andrew Hoffmann-0.8
By ZiPS / Steamer: returning RPProj. WAR
1. Jhoan Duran1.4
2. Orion Kerkering0.7
3. Tanner Banks0.5
4. Jonathan Bowlan0.4
5. Brad Keller0.4
6. Andrew Hoffmann0.3
7. Caleb Kilian0.3
8. Kyle Backhus0.1
9. Grant Holmanlast job0.1
10. Chase Shugart0.0
11. Alex McFarlane0.0
12. Max Lazar-0.0

Departing free agents are excluded; players on club, mutual or player options are counted as returning. The kept probability is calibrated on every September since 2012 using the recent-record projection; the ZiPS/Steamer reading uses the same model with a different ranking, so treat it as a second opinion rather than a calibrated number. Salary enters once arbitration projections publish in October.

October: Post-season eligible

On the 40-man before noon ET Sep 1. He stays eligible as long as he remains on the 40-man or 60-day IL through the post-season; an outright after the cutoff would end automatic eligibility.

The post-season eligibility list is fixed at noon ET on September 1: everyone on the 40-man, the 60-day IL or the military list at that moment, who then stays there without interruption. Attachment 25 (Major League Rule 40)

What happens if the club…

option him to the minors
Yes, 3 option years left. 2 of the five optional assignments for 2026 remain. A 2026 option year is already used (68 days), so further trips this season cost nothing extra. Once down he must stay 15 days unless he replaces an injured or traded player.
Option years and the 20-day rule · Five optional assignments per season · Minimum stay on option
designate him for assignment (or put him on outright waivers)
The club has 7 days to trade him, pass him through outright waivers, or release him; he is paid at the major-league rate and keeps accruing service in the meantime. On outright waivers any club can claim him for $50,000, worst record first, and the claiming club takes his contract. If he clears, the club can outright him to the minors and he has no say; he stays under club control on a minor-league deal. He would then be Rule 5-eligible and would hold XX-D rights against any future outright. Post-season: an outright after the September 1 cutoff ends his automatic eligibility. He could only return as an approved injury replacement, and only if he accepts the outright and stays on a minor-league reserve list in the organization without interruption; a release makes him ineligible for anyone this October.
Designated for assignment: 7 days · Outright waivers · Article XX-D: the right to walk
release him
Release waivers cost a claiming club $1 but the claimant assumes the whole contract, so expensive players clear. The club owes the full unpaid balance of this season's salary, offset by whatever another club pays him this year. A released player is not post-season eligible for any club this year.
Release waivers and termination pay · Which rate a split contract pays at release
trade himBLOCKED
Not now: players on major-league contracts cannot be traded after the Aug 3 deadline until the day after the World Series.
Trade deadline · 10-and-5 rights · June 15 no-trade for free-agent signees
renew him for next year
Pre-arbitration: the club sets his 2027 salary near the minimum ($780,000 floor) and he has no leverage beyond a non-tender.
Minimum salaries · Tender deadline

What the rules say about him

Option years, season by season

SeasonDays on optionOption year usedStints
202668yesApr 7, 2026 to Apr 15, 2026 (8d)Jul 7, 2026 to Jul 25, 2026 (18d)Aug 4, 2026 to now (42d)
202511no (under 20)Sep 18, 2025 to Sep 29, 2025 (11d)

Transaction log

Aug 4, 2026OptionedPhiladelphia Phillies optioned LHP Kyle Backhus to Lehigh Valley IronPigs.
Jul 25, 2026RecalledPhiladelphia Phillies recalled LHP Kyle Backhus from Lehigh Valley IronPigs.
Jul 7, 2026OptionedPhiladelphia Phillies optioned LHP Kyle Backhus to Lehigh Valley IronPigs.
Jun 22, 2026Status changePhiladelphia Phillies activated LHP Kyle Backhus from the 15-day injured list.
Apr 30, 2026Status changePhiladelphia Phillies placed LHP Kyle Backhus on the 15-day injured list retroactive to April 27, 2026. Left elbow inflammation.
Apr 15, 2026RecalledPhiladelphia Phillies recalled LHP Kyle Backhus from Lehigh Valley IronPigs.
Apr 7, 2026OptionedPhiladelphia Phillies optioned LHP Kyle Backhus to Lehigh Valley IronPigs.
Dec 19, 2025TradedArizona Diamondbacks traded LHP Kyle Backhus to Philadelphia Phillies for CF Avery Owusu-Asiedu.
Sep 29, 2025RecalledArizona Diamondbacks recalled LHP Kyle Backhus from Reno Aces.
Sep 18, 2025OptionedArizona Diamondbacks optioned LHP Kyle Backhus to Reno Aces.
Jun 8, 2025Contract selectedArizona Diamondbacks selected the contract of LHP Kyle Backhus from Reno Aces.
Jul 20, 2021Signed as free agentArizona Diamondbacks signed free agent LHP Kyle Backhus to a minor league contract.

Service through 2025 per FanGraphs RosterResource; options and this-season service reconstructed from the MLB transaction log (reconstruction; FanGraphs shows 3). Rule 5 exposure deadline Nov 17, 2026.