The Chicago Cubs and Colorado Rockies split the first two games of the series.
Taking on the inexperienced Sean Sullivan with the wind blowing out at Wrigley, my Rockies vs Cubs predictions and MLB picks expect the home team to pick up a high-scoring win.
Who will win Rockies vs Cubs today: Chicago Cubs -1.5 (+100)
Sean Sullivan, who is raw and owns a 5.60 ERA in Triple-A this year, will get the start and is likely to pitch four or five innings. The Colorado Rockies will then turn to one of the league’s worst bullpens, which is also fatigued.
Rockies relievers have allowed a .300 average in June while walking batters at the third-highest rate. Their 1.80 WHIP ranks ahead of only the Giants.
The Chicago Cubs will generate plenty of runs for Javier Assad, who has allowed four hits over 12 1/3 innings in his last two appearances.
Back the Cubs RL to -110.
COVERS INTEL: The Cubs rank sixth in fly ball rate and ISO against left-handed pitching this month.
Rockies vs Cubs Over/Under pick: Over 10.0 (-110)
Sullivan has posted a 1.55 WHIP and allowed 1.66 homers per nine innings in Triple-A ball. That doesn’t bode well for him going up against a Cubs offense that sits 13th in runs per game and will benefit from the wind blowing out at Wrigley.
Pete-Crow Armstrong, Michael Busch, and the power bats will be chomping at the bit.
Meanwhile, Assad ranks in the sixth percentile in hard-hit rate allowed, and the Cubs ‘pen has the seventh-worst FIP this month.
Expect the offenses to win. Bet to -115.
- ML/RL bets: 30-27, -4.65 units
- Over/Under bets: 30-25-2, +1.84 units
Rockies vs Cubs odds
- Moneyline: Rockies +160 | Cubs -190
- Run line: Rockies +1.5 (-120) | Cubs -1.5 (+100)
- Over/Under: Over 10.0 (-110) | Under 10.0 (-110)
Rockies vs Cubs trend
Colorado has only covered the run line in 19 of the last 45 games (-13.25 units, -24% ROI). Find more MLB betting trends for Rockies vs. Cubs.
How to watch Rockies vs Cubs and game info
| Location | Wrigley Field, Chicago, IL |
| Date | Wednesday, June 17, 2026 |
| First pitch | 8:05 p.m. ET |
| TV | Rockies.TV, Marquee |
| Rockies starting pitcher | Sean Sullivan (0-0, 0.00 ERA) |
| Cubs starting pitcher | Javier Assad (4-1, 3.99 ERA) |
Rockies vs Cubs latest injuries
Rockies vs Cubs weather
Odds are correct at the time of publishing and are subject to change.
Not intended for use in MA.
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