| Date | Matchup | Result | Winner | Model Projection | Stage |
|---|---|---|---|---|---|
| Sep 15, 1998 | 6–7 | Diamondbacks +1 | Giants +0.3 | Regular Season | |
| Sep 15, 1998 | 4–2 | Cubs +2 | Padres +0.7 | Regular Season | |
| Sep 15, 1998 | 5–4 | Rockies +1 | Dodgers +0.5 | Regular Season | |
| Sep 15, 1998 | 8–4 | Mets +4 | Astros +0.6 | Regular Season | |
| Sep 15, 1998 | 3–9 | Cardinals +6 | Cardinals +0.5 | Regular Season | |
| Sep 15, 1998 | 8–6 | Pirates +2 | Cardinals +0.5 | Regular Season | |
| Sep 15, 1998 | 0–3 | Braves +3 | Braves +1.5 | Regular Season | |
| Sep 15, 1998 | 6–5 | Rangers +1 | Orioles +0.5 | Regular Season | |
| Sep 15, 1998 | 9–4 | Red Sox +5 | Yankees +1.1 | Regular Season | |
| Sep 15, 1998 | 0–2 | Tigers +2 | White Sox +0.4 | Regular Season | |
| Sep 15, 1998 | 1–5 | Reds +4 | Reds +0.3 | Regular Season | |
| Sep 15, 1998 | 5–7 | Guardians +2 | Guardians +0.5 | Regular Season | |
| Sep 15, 1998 | 1–8 | Rays +7 | Angels +0.4 | Regular Season | |
| Sep 15, 1998 | 7–4 | Marlins +3 | Nationals +0.4 | Regular Season | |
| Sep 15, 1998 | 3–6 | Royals +3 | Royals +0.3 | Regular Season | |
| Sep 15, 1998 | 5–6 | Astros +1 | Astros +0.6 | Regular Season | |
| Sep 15, 1998 | 12–7 | Mariners +5 | Mariners +0.3 | Regular Season |