In two innings, Taijuan Walker allowed one hit, a homer to Justin Morneau, but otherwise finished his remarkable spring training flawlessly as the Mariners beat Colorado 6-3 Saturday afternoon to close the Peoria show at 13-17-2.

Walker, who won the No. 5 position in the starting rotation,  finished 4-0 with a 0.67 ERA (2 ER, 27.0 IP) with 26 strikeouts in seven starts. After the game, manager Lloyd McClendon said he would move Walker to the No. 4 spot and make J.A. Happ the No. 5 starter.  Box score

1B Logan Morrison hit his second home run of spring, a two-run shot in the second inning. In the third, 3B Kyle Seager hit a triple that plated 2B Robinson Cano and DH Nelson Cruz, both of whom singled. The final run came on the first pitch of the eighth, when Leury Bonilla homered.

After six weeks in the desert, the Mariners were to have flown to Seattle Saturday night for a Sunday workout at Safeco Field, where they will open the regular season at 1:10 p.m. Monday against the Los Angeles Angels. Felix Hernandez opposes Angels ace Jered Weaver.

After the game, the Mariners made official the move of rookie RHP reliever Tyler Olson to the 25-man roster by placing SS Chris Taylor on the 15-day disabled list retroactive to March 27 (broken wrist bone). Olson is the only non-roster invitee to make the big club.

The Opening Day roster:

          Pitchers (12)                                    

40      FARQUHAR, Danny                    RHP

34      HERNANDEZ, Felix                    RHP

18      IWAKUMA, Hisashi                     RHP

31      MEDINA, Yoervis                         RHP

56      RODNEY, Fernando                    RHP

38      SMITH, Carson                             RHP

32      WALKER, Taijuan                        RHP

54      WILHELMSEN, Tom                   RHP

41      FURBUSH, Charlie                      LHP

33      HAPP, J.A.                                     LHP

66      OLSON, Tyler                                LHP

65      PAXTON, James                          LHP

          Catchers (2)                         

2        SUCRE, Jesus                                  C

3        ZUNINO, Mike                                C

          Infielders (5)                                    

8        BLOOMQUIST, Willie                 UTL

22      CANO, Robinson                           2B

5        MILLER, Brad                               INF

20      MORRISON, Logan                      1B

15      SEAGER, Kyle                                INF

          Outfielders (6)                                 

13      ACKLEY, Dustin                             OF

23      CRUZ, Nelson                                OF

16      JACKSON, Austin                          OF

12      RUGGIANO, Justin                       OF

7        SMITH, Seth                                   OF

25      WEEKS, Rickie                               OF

15-day disabled list (2)                           

68      OLMOS, Edgar                             LHP

1        TAYLOR, Chris                              INF