Sung Mun Song
INF · L/R · age 30 · SDXIX-A (POSTED)OCTOBER OK
ACTIVE
0+000
0+151 / 0+164
3 (using one in 2026)
2 of 5
SIGNED THRU 2028 + 2029 PLAYER OPTION / 2030 MUTUAL OPTION
Purchased (KBO) Dec'25
0 / 0
4 yr, $15M (2026-29), 2029 player option, 2030 mutual option
Next 90 days, by the model
86%
5%
6%
2%
1%
Pushing the cut risk around: age (30.04) raises it, last season's WAR raises it, this season's WAR (0.19) raises it.
Context the model does not weigh: ZiPS projects 2.1 WAR, 0.2 WAR this season; 13 OF on the 40-man, of whom Austin Hays, Luis Rengifo, Ramon Laureano 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?
SD returns 11 IF on the 40-man once 2 free agents leave; about 8 IF jobs survive a normal winter. By his own recent record he ranks 8th among the returners (0.4 WAR against a bar of 0.4), which the calibrated model turns into 75% kept through the tender deadline. Ranked by ZiPS and Steamer instead, which credit his longer track record, he is 6th (1.4 WAR, bar 0.6), worth 80% kept on the same model.
| By recent record: returning IF | Proj. WAR |
|---|---|
| 1. Fernando Tatis Jr. | 4.3 |
| 2. Manny Machado | 2.6 |
| 3. Xander Bogaerts | 2.4 |
| 4. Luis Campusano | 1.6 |
| 5. Jake Cronenworth | 1.2 |
| 6. Miguel Andujar | 0.7 |
| 7. Gavin Sheets | 0.4 |
| 8. Sung Mun Songlast job | 0.4 |
| 9. Mason McCoy | 0.1 |
| 10. Will Wagner | -0.1 |
| 11. Gage Workman | -1.7 |
| By ZiPS / Steamer: returning IF | Proj. WAR |
|---|---|
| 1. Fernando Tatis Jr. | 5.3 |
| 2. Manny Machado | 3.5 |
| 3. Xander Bogaerts | 3.0 |
| 4. Jake Cronenworth | 2.1 |
| 5. Luis Campusano | 1.5 |
| 6. Sung Mun Song | 1.4 |
| 7. Will Wagner | 0.9 |
| 8. Mason McCoylast job | 0.6 |
| 9. Miguel Andujar | 0.5 |
| 10. Gage Workman | 0.4 |
| 11. Gavin Sheets | 0.4 |
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 minorsBLOCKED
- Not without his consent: with five years of service (or, for a posted player, a contractual clause) he can refuse the assignment or elect free agency instead. The club's only unilateral moves are to keep him, trade him, or release him.
- Article XIX-A: five years, no forced assignment
- 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 (4 yr, $15M (2026-29), 2029 player option, 2030 mutual option). If he clears, he cannot be outrighted without his consent: he can refuse and force a release with his contract intact, or elect free agency (forfeiting termination pay). 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. With real money left on the contract a claim is unlikely; the usual outcome is clearing waivers, then release, with the club paying the balance less what a new club pays him.
- 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. The guaranteed years remain owed in full. 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
- Let the season end
- Under contract (4 yr, $15M (2026-29), 2029 player option, 2030 mutual option): nothing to decide this winter. Moving him later means trading the contract or releasing him and paying the guaranteed years in full.
- Release waivers and termination pay
What the rules say about him
- Article XIX-A: five years, no forced assignmentPosted from NPB/KBO: posted players almost always negotiate Article XIX-A consent rights into the contract.A player with five or more years of Major League service cannot be assigned anywhere but another Major League club without his written consent. 2022-2026 Basic Agreement, Article XIX(A)(2), p. 94
- Post-season roster eligibilityOn 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. 2022-2026 Basic Agreement, Attachment 25, p. 253 (the number itself is in Major League Rule 40)
- Rule 5 clockOn a 40-man roster (would first be exposed after 2029 otherwise).
Option years, season by season
| Season | Days on option | Option year used | Stints |
|---|---|---|---|
| 2026 | 23 | yes | Apr 16, 2026 to Apr 25, 2026 (9d)Apr 27, 2026 to May 5, 2026 (8d)Aug 24, 2026 to Aug 30, 2026 (6d) |
Transaction log
| Aug 30, 2026 | Recalled | San Diego Padres recalled 2B Sung-Mun Song from El Paso Chihuahuas. |
| Aug 24, 2026 | Optioned | San Diego Padres optioned 2B Sung-Mun Song to El Paso Chihuahuas. |
| May 5, 2026 | Recalled | San Diego Padres recalled 3B Sung-Mun Song from El Paso Chihuahuas. |
| Apr 27, 2026 | Optioned | San Diego Padres optioned 3B Sung-Mun Song to El Paso Chihuahuas. |
| Apr 25, 2026 | Recalled | San Diego Padres recalled 3B Sung-Mun Song from El Paso Chihuahuas. |
| Apr 16, 2026 | Status change | San Diego Padres activated 3B Sung-Mun Song from the 10-day injured list. |
| Apr 16, 2026 | Optioned | San Diego Padres optioned 3B Sung-Mun Song to El Paso Chihuahuas. |
| Mar 25, 2026 | Status change | San Diego Padres placed 3B Sung-Mun Song on the 10-day injured list. Right oblique strain. |
| Dec 22, 2025 | Signed as free agent | San Diego Padres signed free agent 3B Sung-Mun Song. |
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.