MLB Rules Lab

MLB Fourth Out Rule Simulator

Official Baseball Rule 5.09(c) Featured on TWIB via @MLB
Diamond Telemetry View Phase: Ready
Runs Counted 0
Official Outs
Inning State Top 9th, 1 Out
0.00s 6.50s
R1 (1st Base Runner)
R3 (3rd Base Runner)
Ball In Play
Base Umpires
Official Rule 5.09(c) Breakdown Preset 1 Active
Current Play Outcome
RUN COUNTS (Time Play)
+1 RUN
0.0sBatter hits high drive to deep right-center field with 1 out.
2.2sOut #2: Fly ball caught by RF. R3 takes off early toward Home.
3.4sTime Play: R3 crosses Home Plate before Out #3 occurs.
4.2sOut #3: Throw to 1B doubles off R1. Inning is technically over.
5.8sAdvantageous Out #4: Defense legally appeals R3 at 3B to cancel the run!
OBR 5.09(c)(4) Appeal Rule Advantageous 4th Out

"If the third out is made during a play in which an appeal play is sustained on another runner, the appeal play decision takes precedence in determining whether a run scores." If the defense appeals before leaving fair territory, the 4th out replaces or supercedes the non-force 3rd out to void the run!

Play diagram verified against MLB rules database
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