Chicago White Sox and Seattle Mariners Tied 3-3 Head-to-Head (2021)

MLBData through 2021-06-27

White Sox vs Mariners Betting Record — 2021

Moneyline
1-2-0
Win %
33.33%
ROI
-48.65%
Units
-1.5

From the Other Side — Mariners vs White Sox

Moneyline
2-1-0
Win %
66.67%
ROI
+76%
Units
+2.3

Scoring Averages

White Sox
5.3
PPG
4.8
allowed
Total
10.2
Avg
6
games
Mariners
4.8
PPG
5.3
allowed

Recent Matchups (2021)

DateScoreATSMLO/U
06/27W 7-5-W-
06/26L 2-3-L-
06/25L 3-9-L-
04/07L 8-4---
04/06W 4-10---
04/05W 0-6---

Frequently Asked Questions

What is the Chicago White Sox vs Seattle Mariners all-time record?
The Chicago White Sox are 3-3 against the Seattle Mariners in 2021 in head-to-head matchups.
Do Chicago White Sox vs Seattle Mariners games go over or under?
Chicago White Sox vs Seattle Mariners games average 10.2 total points in 2021. The Over has hit 0% of the time.

More White Sox Matchups

Head-to-head betting record for Chicago White Sox vs Seattle Mariners in the 2021 season on LineTerminal. The White Sox are 3-3 straight up against the Mariners on DraftKings. Data sourced from DraftKings closing lines. Updated daily after games are graded. Past performance does not guarantee future results.

LineTerminal

AI-powered betting intelligence for NBA, NHL, MLB, and NCAAB.

LineTerminal provides sports data and analytics for informational and entertainment purposes only. LineTerminal does not accept, place, or facilitate bets or wagers of any kind. Odds data is sourced from third-party providers and may not reflect exact lines at every sportsbook. Past performance does not guarantee future results. Sports betting involves risk — never wager more than you can afford to lose.

If you or someone you know has a gambling problem, call 1-800-MY-RESET (National Problem Gambling Helpline) or visit ncpgambling.org. Must be 21+ in most jurisdictions. Please gamble responsibly.

© 2026 LineTerminal. All rights reserved.