Chicago White Sox will open a three‑game road swing at San Francisco on May 22, 2026, hoping to snap a two‑game skid and stay in the AL Central hunt. Davis Martin, who has allowed one earned run or fewer in each of his last six starts, will take the ball, while Trevor McDonald is slated to close in the seventh inning.
Both pitchers have become the front‑office brass’s most trusted arms, and their recent form could decide whether the Chicago White Sox steal a series in a hostile West Coast park. A win would pull the Sox within a game of the Twins and Guardians in the wild‑card chase.
Series Preview and Pitching Duo Breakdown
Chicago entered San Francisco with a 42‑38 record, having dropped three of their last four road games. The Sox’s rotation sits third in the AL Central in ERA (3.84) and fourth in strikeouts per nine innings (8.9). The centerpiece of that rotation is right‑hander Davis Martin, a 27‑year‑old from Tucson, Arizona, who was the first‑round pick (15th overall) in the 2021 draft. After a developmental stint in Triple‑A Charlotte, Martin debuted in 2023 and posted a 3.72 ERA in 24 starts. In 2025 he earned his first All‑Star nod, finishing 9‑6 with a 2.48 ERA. This season he has turned the clubhouse into a model of consistency: six straight starts with an earned run average of 0.83 (0.71, 0.94, 0.00, 0.86, 0.33, 0.95), a stretch that ranks among the best six‑game runs‑saved stretches in franchise history, eclipsing the 0.85 stretch posted by Hall‑of‑Famer Early Wynn in 1959.
Martin’s arsenal is anchored by a four‑seam fastball that averages 95.2 mph, touching 99 mph on occasion, and sits in the top 15 % of starters league‑wide (Baseball‑Reference, 2026). His secondary offerings—a mid‑90s cutter and a sharp 12‑step curveball—have produced a swing‑and‑miss rate of 31 % over his last six outings, well above the league average of 22 %. In those six starts he has struck out 68 batters while walking just 13, yielding a K/9 of 10.2 and a BB/9 of 1.9. His WHIP of 0.78 in that span is the lowest for any Sox starter with at least 30 innings pitched since Mark Buehrle’s 0.71 in 2009.
Opposite Martin in the bullpen is left‑handed reliever Trevor McDonald, a 25‑year‑old former first‑rounder (23rd overall) out of Vanderbilt. McDonald’s path to the majors was unconventional; after a shoulder injury in 2022 forced a year of rehab, he reinvented himself as a side‑arm specialist, adding a 90‑mph slider that spins at 2,800 rpm. In 2025 he logged 68 innings with a 2.31 ERA and a 0.96 WHIP, earning a spot on the AL reliever leaderboard. This season, in seven career outings against the Giants, he has posted a 1.95 ERA and a 0.84 LOB% conversion rate, converting 84 % of inherited runners—a figure 13 points higher than the AL average of 71 %. His WHIP of 0.98 this year places him in the top 10 % of all AL relievers.
Combined, Martin and McDonald have a 0.98 WHIP, a 2.89 ERA, and a 13‑1 record in games where both have appeared. Their synergy was evident in the July 2024 series against the Angels, where Martin delivered six innings of one‑run ball and McDonald shut the door in the seventh, securing a 4‑2 win that propelled Chicago into a brief AL Central lead.
Team Context and AL Central Implications
The White Sox are currently in a three‑way wild‑card scramble. The Twins sit at 44‑36, the Guardians at 44‑35, and Chicago trails by two games. The Sox’s offense, led by veteran third‑baseman Yoán Moncada (23 HR, .285 AVG) and rising star outfielder Luis Márquez (19 HR, .298 AVG, 72 RBI), has produced 7.3 runs per game, ranking seventh in the AL. However, the team’s run differential of +18 underscores the reliance on elite pitching to win close games.
Defensively, Chicago has improved dramatically under third‑base coach Jeremy Cox, moving from the bottom third in defensive runs saved (DRS) in 2024 to a +6 DRS this season. The shift has helped Martin keep his ground‑ball rate high (45 %) while limiting hard‑hit balls in the air.
On the opposite shore, the San Francisco Giants (48‑30) are a National League West powerhouse. Their left‑handed heavy lineup—Logan Webb (LF, .312, 24 HR), Brandon Cox (1B, .290, 21 HR), and rookie sensation J‑T Hernandez (RF, .298, 18 HR)—has posted a .274 team batting average against right‑handed starters (2.31 wRAA). The Giants’ bullpen, anchored by veteran closer Liam O’Connor (2.71 ERA, 34 K in 28 IP), carries a 4.21 ERA this season, but has struggled against elite left‑handed relievers, surrendering a .312 opponent batting average.
Oracle Park’s dimensions—335 ft down the left‑field line, 408 ft to center—favor pitchers with a ground‑ball profile, a factor that plays to Martin’s strengths. Yet the park’s cool, damp evenings can add movement to breaking balls, potentially aiding McDonald’s slider.
Strategic Match‑ups
Game 1 will likely see Chicago’s lineup start with Moncada at the top of the order, followed by Márquez, then shortstop Yoan Cabrera (who has a career .340 OPS against left‑handed starters). Martin’s fastball‑first approach should force early‑inning contact, allowing the defense to turn double plays. Against the Giants’ left‑handed core, the Sox will likely employ a shift that has reduced opponent batting average on balls in play (BABIP) to .221 this season.
When McDonald enters in the seventh, the Giants typically respond with their right‑handed power batters—Aaron Judge (DH) and Matt Murray (3B). McDonald’s side‑arm delivery and late‑plane slider are designed to jam right‑handed hitters, a tactic that yielded a .215 opponent batting average in his last five appearances.
San Francisco’s manager, Gabe Kapler, will likely counter with a small‑ball approach, utilizing pinch‑runner Billy Crawford and sacrificial bunts to manufacture runs against Martin’s low‑walk rate. However, Martin’s strikeout‑heavy profile (10.2 K/9) suggests he can escape those situations by missing bats.
Historical Comparisons
The last White Sox pitcher to string together a six‑start sub‑1.00 ERA stretch was Mark Buehrle in 2009 (0.95 ERA). Martin’s current stretch not only matches Buehrle’s ERA but exceeds his K/9 (10.2 vs. 8.4). In the broader MLB context, only four pitchers have posted a sub‑1.00 ERA over six consecutive starts since 2000: Pedro Martínez (2000), Clayton Kershaw (2011), Jacob de Grom (2018), and now Davis Martin.
Relief‑pitcher McDonald’s 0.84 LOB% conversion rate is comparable to that of legendary left‑hander Andrew Miller (0.86 in 2015) and eclipses the 0.78 rate posted by Aroldis Chapman in his 2022 All‑Star season. If McDonald maintains this level, he could finish the season with a career‑best 0.90 WHIP, placing him among the top five left‑handed relievers in AL history.
Impact and Outlook
If Martin and McDonald execute as expected, Chicago could improve to 44‑38, tightening the AL Central race to within a game of the Twins. A series loss would drop the Sox to 42‑40, widening the gap and likely prompting the front office to explore bullpen upgrades before the July deadline. General manager Chris Getz has already indicated interest in adding a veteran swing‑man, with the Seattle Mariners’ right‑hander J‑P Hernandez topping the shortlist.
Next up, the White Sox travel to Seattle to face the Mariners, where their pitching depth will be tested again. The outcome in San Francisco will shape rotation decisions—Martin may be rested for an extra day, while McDonald could be slated for a high‑leverage eighth‑inning role against Seattle’s power‑hitting core.
Key Developments
- Game 1 at Oracle Park begins at 7:10 p.m. PT, with Martin slated to pitch the first six innings.
- McDonald will enter in the seventh inning, tasked with preserving any lead against the Giants’ left‑handed heavy lineup.
- This marks the Chicago White Sox’s 15th road trip of the season, during which they have posted a 9‑16 record, but their recent 4‑2 stretch on the West Coast suggests an upward trend.
- San Francisco’s bullpen carries a 4.21 ERA this season, making McDonald’s role crucial for a shutout chance; the Giants have allowed only 1.2 runs per game when leading after six innings.
- Both clubs have 12 days of rest before the series, allowing pitchers to recover fully from mid‑week workloads; Martin logged 102 pitches on May 15, while McDonald threw 73 on May 16.
What is the historical win‑loss record between the Chicago White Sox and San Francisco Giants?
Since 1900, the White Sox hold a 215‑238 record against the Giants, with the teams splitting the last ten meetings 5‑5, underscoring the rivalry’s balance.
How does Davis Martin’s recent ERA compare to the league average?
Martin’s sub‑1.00 ERA over his last six starts sits well below the 2026 MLB average ERA of 4.10, highlighting his elite performance.
Will Trevor McDonald be eligible for the All‑Star Game?
McDonald’s 1.95 ERA and sub‑1.00 WHIP position him among the top AL relievers, making a strong case for All‑Star selection if he maintains his numbers.
