| Baltimore Orioles (86-64) at Boston Red Sox (68-84) |
| Game One |
Baltimore 4, Boston 2 |
| Game Two |
Saturday, September 22nd, 1:10 p.m. |
| Game Three |
Sunday, September 23rd, 1:35 p.m. |
| Records |
| 2012 Head-to-Head Record |
Baltimore 9-4 (3-3 at Bal; 6-1 at Bos) |
| 2011 Head-to-Head Record |
Boston 10-8 (4-5 at Bal; 6-3 at Bos) |
| 2010 Head-to-Head Record |
Tied 9-9 (Bos 4-5 at Bal; 5-4 at Home) |
| 2009 Head-to-Head Record |
Boston 16-2 (8-1 at Bal; 8-1 at Bos) |
| Home Record |
Baltimore 42-32; Boston 33-44 |
| Away Record |
Baltimore 44-32; Boston 35-40 |
| Current Streak |
Baltimore (W5); Boston (L3) |
| Record vs. Eastern Division |
Baltimore 36-24; Boston 25-37 |
| 2012 Meetings |
| 5/04 - Baltimore, 6-4 (13) (at Bos - WP: Patton; LP: Morales) |
| 5/05 - Baltimore, 8-2 (at Bos - WP: Hammel; LP: A.Cook) |
| 5/06 - Baltimore, 9-6 (17) (at Bos - WP: C.Davis; LP: D.McDonald) |
| 5/21 - Boston, 8-6 (at Bal - WP: An.Miller; LP: Gregg) |
| 5/22 - Baltimore, 4-1 (at Bal - WP: Matusz; LP: Doubront) |
| 5/23 - Boston, 6-5 (at Bal - WP: Bard; LP: Arrieta) |
| 6/05 - Baltimore, 8-6 (10) (at Bos - WP: Ji.Johnson; LP: Aceves) |
| 6/06 - Baltimore, 2-1 (at Bos - WP: W-Y.Chen; LP: Beckett) |
| 6/07 - Boston, 7-0 (at Bos - WP: Buchholz; LP: Matusz) |
| 8/14 - Baltimore, 7-1 (at Bal - WP: W-Y.Chen; LP: Beckett) |
| 8/15 - Baltimore, 5-3 (at Bal - WP: Mig.Gonzalez; LP: A.Cook) |
| 8/16 - Boston, 6-3 (at Bal - WP: Buchholz; LP: Ayala) |
| 9/21 - Baltimore, 4-2 (at Bos - WP: Mig.Gonzalez; LP: Lester) |
| 2011 Meetings |
| 4/26 - Baltimore, 4-1 (at Bal - WP: Britton; LP: C.Buchholz) |
| 4/27 - Baltimore, 5-4 (at Bal - WP: Uehara; LP: Bard) |
| 4/28 - Boston, 6-2 (at Bal - WP: Lester; LP: Ji.Johnson) |
| 5/16 - Boston, 8-7 (at Bos - WP: Aceves; LP: Gregg) |
| 5/17 - Postponed at Boston (Made-up September 19th) |
| 7/07 - Boston, 10-4 (at Bos - WP: A.Miller; LP: Arrieta) |
| 7/08 - Boston, 10-3 (at Bos - WP: Beckett; LP: Britton) |
| 7/09 - Boston, 4-0 (at Bos - WP: Lackey; LP: Simon) |
| 7/10 - Boston, 8-6 (at Bos - WP: Aceves; LP: Guthrie) |
| 7/18 - Boston, 15-10 (at Bal - WP: Wheeler; LP: M.Gonzalez) |
| 7/19 - Baltimore, 6-2 (at Bal - WP: Guthrie; LP: Weiland) |
| 7/20 - Boston, 4-0 (at Bal - WP: A.Miller; LP: Arrieta) |
| 9/19 - Baltimore, 6-5 (at Bos - WP: Guthrie; LP: Weiland) |
| 9/19 - Boston, 18-9 (at Bos - WP: Atchison; LP: Matusz) |
| 9/20 - Baltimore, 7-5 (at Bos - WP: Eyre; LP: Bard) |
| 9/21 - Baltimore, 6-4 (at Bos - WP: Rapada; LP: Beckett) |
| 9/26 - Baltimore, 6-3 (at Bal - WP: Patton; LP: Beckett) |
| 9/27 - Boston, 8-7 (at Bal - WP: Aceves; LP: Britton) |
| 9/28 - Baltimore, 4-3 (at Bal - WP: Ji.Johnson; LP: Papelbon) |
| 2010 Meetings |
| 4/23 - Boston, 4-3 (at Bos - WP: Delcarmen; LP: Albers) |
| 4/24 - Boston, 7-6 (at Bos - WP: Lackey; LP: Albers) |
| 4/25 - Baltimore, 7-6 (10) (at Bos - WP: Ji.Johnson; LP: Atchison) |
| 4/30 - Baltimore, 5-4 (10) (at Bal - WP: Albers; LP: R.S.Ramirez) |
| 5/01 - Baltimore, 12-9 (at Bal - WP: Bergesen; LP: Matsuzaka) |
| 5/02 - Baltimore, 3-2 (10) (at Bal - WP: Albers; LP: Papelbon) |
| 6/04 - Boston, 11-0 (at Bal - WP: C.Buchholz; LP: Tillman) |
| 6/05 - Boston, 8-2 (at Bal - WP: Lester; LP: Guthrie) |
| 6/06 - Baltimore, 4-3 (11) (at Bal - WP: D.Hernandez; LP: Okajima) |
| 7/02 - Boston, 3-2 (at Bos - WP: Wakefield; LP: Bergesen) |
| 7/03 - Boston, 9-3 (at Bos - WP: Lester; LP: Guthrie) |
| 7/04 - Baltimore, 6-1 (at Bos - WP: Matusz; LP: Lackey) |
| 8/31 - Baltimore, 5-2 (at Bal - WP: Matusz; LP: Beckett) |
| 9/01 - Boston, 9-6 (at Bal - WP: Lester; LP: M.Hendrickson) |
| 9/02 - Boston, 6-4 (at Bal - WP: Matsuzaka; LP: Bergesen) |
| 9/20 - Baltimore, 4-2 (at Bos - WP: D.Hernandez; LP: Matsuzaka) |
| 9/21 - Baltimore, 9-1 (at Bos - WP: Bergesen; LP: Atchison) |
| 9/22 - Boston, 6-1 (at Bos - WP: Lackey; LP: Millwood) |
| 2009 Meetings |
| 4/17 - Boston, 10-8 (at Bos - WP: R.S.Ramirez; LP: D.Baez) |
| 4/18 - Boston, 6-4 (at Bos - WP: Beckett; LP: Eaton) |
| 4/19 - Boston, 2-1 (at Bos - WP: Lester; LP: Uehara) |
| 4/20 - Boston, 12-1 (at Bos - WP: Masterson; LP: M.Hendrickson) |
| 6/29 - Boston, 4-0 (at Bal - WP: Lester; LP: Berken) |
| 6/30 - Baltimore, 11-10 (at Bal - WP: M.Hendrickson; LP: Saito) |
| 7/01 - Boston, 6-5 (11) (at Bal - WP: R.S.Ramirez; LP: D.Baez) |
| 7/24 - Boston, 3-1 (at Bos - WP: Penny; LP: Bergesen) |
| 7/25 - Boston, 7-2 (at Bos - WP: Lester; LP: Guthrie) |
| 7/26 - Baltimore, 6-2 (at Bos - WP: D.Hernandez; LP: Smoltz) |
| 7/31 - Boston, 6-5 (at Bal - WP: Smoltz; LP: Guthrie) |
| 8/01 - Boston, 4-0 (at Bal - WP: Beckett; LP: D.Hernandez) |
| 8/02 - Boston, 18-10 (at Bal - WP: Delcarmen; LP: Berken) |
| 9/08 - Boston, 10-0 (at Bos - WP: C.Buchholz; LP: D.Hernandez) |
| 9/09 - Boston, 7-5 (at Bos - WP: B.Wagner; LP: Albers) |
| 9/18 - Boston, 3-1 (at Bal - WP: C.Buchholz; LP: Guthrie) |
| 9/19 - Boston, 11-5 (at Bal - WP: Lester; LP: Albers) |
| 9/20 - Boston, 9-3 (at Bal - WP: Matsuzaka; LP: Berken) |
| Baltimore last five games |
Boston last five games |
| 9/16 - W at Oakland, 9-5 |
9/17 - W at Tampa Bay, 5-2 |
| 9/17 - W at Seattle, 10-4 |
9/18 - W at Tampa Bay, 7-5 |
| 9/18 - W at Seattle, 4-2 (18) |
9/19 - L at Tampa Bay, 3-13 |
| 9/19 - W at Seattle, 3-1 (11) |
9/20 - L at Tampa Bay, 4-7 |
| 9/21 - W at Boston, 4-2 |
9/21 - L vs. Baltimore, 2-4 |