Pre-match projection. Probabilities are frozen approximately 6 hours before kickoff to provide a stable pre-match reference.

Group A · Matchday 1

MexicovsSouth Africa

·13:00 local

تاريخ المواجهات المباشرة

DateCompetitionVenueScoreResultxG
11 Jun 2010FIFA World CupAJohannesburg11D
8 Jul 2005Gold CupNCarson12L
7 Jun 2000USA CupNDallas42W
6 Oct 1993FriendlyNLos Angeles40W

Mexico vs South Africa, every senior international meeting in the martj42 results dataset (score from Mexico's perspective; H/A/N = home/away/neutral).

Latest news & match context

Match conditions
Stage:
Group A · Matchday 1
Availability

Mexico

Mexico: 2 carrying a fitness doubt.

  • DoubtCésar Montes, a projected starter at defender, is recovering from Leg injury and is a fitness watch item; if unavailable the projected XI shifts.
  • DoubtJulián Araujo (defender) is carrying Hamstring injury — a depth-level fitness watch item.

South Africa

South Africa come in at close to full strength.

What it means

Mexico faces defensive uncertainty with key defender César Montes doubtful due to a leg injury.

Fellow defender Julián Araujo is also a doubt with a hamstring issue.

South Africa, by contrast, reports a fully fit squad.

Availability from the predicted squads and injury feed; forecast adjustments from the model's own decomposition. See /docs/methodology/.

1

التوقعات

Analysis

The model rates Mexico as clear favourites at 59.5%, with South Africa at 13.4% and the draw at 27.2%. The Elo gap is substantial at 336 points in Mexico's favour, reflecting a clear strength differential in recent form. In Group A, Mexico are expected to advance (96.0%) while South Africa face a tighter path (22.9%) — this result could be decisive for South Africa's campaign.

Tactical matchup

Mexico (high press) meet South Africa (balanced) — contrasting tactical identities that should shape the contest. Mexico press significantly higher (PPDA 16.1) — their ability to force turnovers in advanced positions will be a key tactical dynamic.

Key battlegrounds

Mexico must sustain their pressing intensity to force turnovers in advanced positions. The individual battle features Raúl Jiménez (P(scores) 9.3%) against Evidence Makgopa (3.0%) — their impact could prove decisive.

Situational factors

South Africa face a 14,106km journey to the venue versus Mexico's 14km — acclimatisation and fatigue could factor into the second half. South Africa's Hugo Broos (5.4 years in post) brings significantly more tenure than Javier Aguirre (2.4 years) — squad cohesion and tactical familiarity may differ accordingly.

Match storyline

At 13.4%, a South Africa result would qualify as a genuine upset — the kind of group-stage surprise every World Cup produces.

Key numbers

59.5% / 27.2% / 13.4%H / D / ACalibrated ensemble probability
+336Elo differentialMexico 1860 vs South Africa 1524
1.26 – 0.71Expected goals (H – A)Dixon-Coles per-team rates
1-0 (16.9%)Modal scorelineMost likely exact full-time result
37.1%Both teams scoreP(both sides find the net)
9.3%P(goal) — Raúl JiménezHighest anytime-scorer probability in fixture

Match-outcome probability

  • Mexico win
    59.5%
  • Draw
    27.2%
  • South Africa win
    13.4%
Rank checkFIFA ranks South Africa #61 in the world; the model ranks them #37 in this tournament field, 24 places higher than the FIFA list suggests. All 48 compared →

Expected goals

Mexico
1.26
South Africa
0.71

Mean of the Dixon-Coles joint goal distribution. Same fit that produces the most-likely-scoreline list below.

2

الأهداف والنتائج

Most likely scorelines

  • 1–0
    16.9%
  • 0–0
    14.5%
  • 1–1
    13.1%
  • 2–0
    11.0%
  • 0–1
    9.4%

From the Dixon-Coles joint Poisson with the low-score correction. Scorelines are listed in probability order; this is a description of the model's distribution, not a recommendation.

Most likely half-time scorelines

  • 0–0
    37.7%
  • 1–0
    23.1%
  • 0–1
    12.9%
  • 1–1
    8.8%
  • 2–0
    7.4%

Same Dixon-Coles fit as the full-time list above, with rates halved to a 45-minute window and the low-score correction applied to that 1st-half block. The 0-0 row sits higher here than at full-time because fewer minutes have elapsed.

Goal totals

  • More than 0.5 goals
    85.5%
  • More than 1.5 goals
    59.2%
  • More than 2.5 goals
    31.6%
  • More than 3.5 goals
    13.8%
  • More than 4.5 goals
    5.0%
  • More than 5.5 goals
    1.6%
  • Both teams score
    37.1%

Each row is the probability the match finishes with more than the listed number of goals. Both-teams-to-score is the probability each side scores at least once. All values are marginals of the Dixon-Coles joint goal grid that produces the scoreline list above — not market lines or any other operator construct.

Event-typed probabilities

  • Mexico clean sheetOpposing team scores zero49.0%
  • South Africa clean sheetOpposing team scores zero28.4%

Derived from the same Dixon-Coles joint distribution as the scoreline list. These are descriptive event probabilities — see CLAUDE.md §3/§4 (formerly COMPLIANCE.md §4.2.7) for the framing the project uses.

Win-margin probability

  • Mexico by 4+
    2.3%
  • Mexico by 3+
    8.0%
  • Mexico by 2+
    22.7%
  • Mexico by 1+
    48.8%
  • Draw
    30.7%
  • South Africa by 1+
    20.5%
  • South Africa by 2+
    6.0%
  • South Africa by 3+
    1.3%
  • South Africa by 4+
    0.2%

Each row is the probability the match ends with the listed margin or larger in that direction. Marginal of the Dixon-Coles joint goal grid; the “by 1+” rows plus the draw row sum to 1.

3

كيف تتطور المباراة

Game state through the match

0%25%50%75%100%0'15'30'45'60'75'90'
  • Mexico ahead49.4%
  • Level29.5%
  • South Africa ahead21.1%

Probability of each game state at minutes 0, 15, 30, 45, 60, 75, 90 — derived from two independent thinned-Poisson processes with the Dixon-Coles per-team rates. The three lines always sum to 1 at each minute. The right column shows the state at the match's closing minute.

When the first goal arrives

  • 0–15
    28.0%
  • 15–30
    20.2%
  • 30–45
    14.5%
  • 45–60
    10.4%
  • 60–75
    7.5%
  • 75–90
    5.4%
  • No goal
    13.9%

Probability the match's first goal arrives in each 15-minute window. Homogeneous Poisson with combined rate λ = λh + λa from the Dixon-Coles fit; the seven rows (six windows + no-goal tail) sum to 1.

Half-time / full-time grid

Joint probability of half-time and full-time results
HT ↓ / FT →HMexico winDDrawASouth Africa win
HMexico ahead30.9%4.0%0.8%
DLevel16.9%21.7%8.3%
ASouth Africa ahead1.5%4.0%11.9%

Each cell is P(half-time result, full-time result). All nine cells sum to 1. Derived from a halved-λ Dixon-Coles fit for the first half plus an independent-Poisson second-half convolution.

Comeback probability

  • Mexico trail at HT, avoid defeat at FT
    5.5%
  • South Africa trail at HT, avoid defeat at FT
    4.8%

Joint probability — P(side trailing at half-time AND avoiding defeat at full-time). NOT conditional on trailing at HT. Derived from the same half-time / full-time decomposition that produces the HT/FT grid above; a tied first half is neither a home nor an away comeback opportunity.

Cards

  • Expected yellow cardsMean of the Poisson on total yellow cards.3.45
  • Total yellows over 2.567.0%
  • Total yellows over 3.545.3%
  • Total yellows over 4.526.5%
  • Any red cardP(at least one red card in the match).9.5%

Referee not yet assigned. Using the 2026 pool-mean per-match rate as a placeholder; the model picks up the referee's personal rate once the assignment is published. Total yellow cards modelled as a Poisson with mean equal to two team baselines plus the referee's deviation from the pool mean. Reds are modelled the same way, independently. See /docs/methodology/.

4

الفرق واللاعبون

Match detail

Mexico

Model-rated key players: Raúl Jiménez (FW) — P(scores) 9.3%; Santiago Giménez (FW) — P(scores) 4.6%; Hirving Lozano (FW) — P(scores) 3.1%.

How they play

Mexico under Javier Aguirre play a high press game, holding 55% of the ball — among the highest in the tournament field. Their likely shape is a 3-5-2, though they have also used 4-2-3-1 and 4-3-3. They press intensely (PPDA 16.1, top quartile (5th of 40)). They generate a high volume of shots (15.0 per 90).

What they must execute

Mexico need their high press to force turnovers in dangerous areas — if opponents can play through the press, the space left behind is vulnerable. Physical conditioning and squad rotation will be critical to sustain pressing intensity across a long tournament.

Storylines
Veteran #1: Guillermo Ochoa40 at kickoff with 151 caps — last World Cup for the #1.
Altitude schedule: 3 group-stage matches at altitude — Mexico City (2240m), Guadalajara (1565m), Mexico City (2240m). Thinner air shifts ball flight and recovery.
Club core: 4 of 26 predicted-squad players play their club football for Guadalajara — a single-club spine on the international side.

South Africa

Model-rated key players: Evidence Makgopa (FW) — P(scores) 3.0%; Oswin Appollis (FW) — P(scores) 3.0%; Thapelo Morena (FW) — P(scores) 3.0%.

How they play

South Africa under Hugo Broos play a balanced game with 52% possession. They apply moderate pressing intensity (PPDA 23.9). They favour high-quality chances (xG/shot 0.189, among the best in the field).

What they must execute

South Africa will need to leverage their strengths while managing the physical demands of a tournament spread across three host countries.

Storylines
Club core: 9 of 26 predicted-squad players play their club football for Mamelodi Sundowns — a single-club spine on the international side.
Model bold: Model rates them #44 by tournament-winner probability — 17 places higher than FIFA #61.
Local-league core: Only 1 of 26 predicted-squad players played in a top-5 European league last season — the rest play home or in non-top-5 leagues.
Set-piece outlook

Mexico historically converts 9.5% of xG from set-pieces, contributing 0.12 expected set-piece goals in this fixture. South Africa converts 10.9% from set-pieces (0.08 expected). Combined, the model expects 0.20 set-piece goals across the 90 minutes.

  • P(Mexico scores set-piece goal) 11.3%
  • P(South Africa scores set-piece goal) 7.5%
  • P(set-piece goal in match) 18.0%
Penalty outlook

If a penalty is awarded to Mexico, the model gives 72.5% conversion, 71.4% for South Africa.

Mexico primary PK: Raúl Jiménez (1/1 in 2021-22, per fbref 2021 22).

Derived from the model's per-fixture forecast joint and supporting reference data (predicted squads, set-piece xG share, PK posteriors, club minutes). See /docs/methodology/ for the full methodology.

Tactical forecast

Mexicohigh-press
PPDA
16.1
Possession
55%
Directness (yds/pass)
6.7
Long balls/90
37
Set-piece xG
10%
South Africabalanced
PPDA
23.9
Possession
52%
Directness (yds/pass)
6.8
Long balls/90
44
Set-piece xG
11%

Style profile per side from StatsBomb open-data aggregation across recent international tournaments (Euro 2020/2024, Copa America 2024, AFCON 2023, World Cup 2018/2022). The tactical-fingerprint badge maps each team’s observed style vector into one of eight canonical archetypes via a rule-based classifier; teams with fewer than three matches of qualifying coverage carry an “insufficient-data” label rather than being forced into a default. Sides outside the StatsBomb-open corpus use FotMob team match stats from recent qualifiers and friendlies instead (possession and shot volume only), marked as partial coverage. PPDA = passes the side allows per defensive action (lower = more intense press). Formation distributions are not yet produced — that head of the §2.7 classifier is pending its own data pull. See /docs/methodology/.

Squad depth

Most irreplaceable starters

Mexico

  1. Johan VásquezCentre-backCover: Jesús Alberto Angulo · 0.690.22gap
  2. Edson ÁlvarezDefensive midfieldCover: Luis Chávez · 0.700.19gap
  3. Orbelín PinedaCentral midfieldCover: Érick Sánchez · 0.670.00gap

South Africa

  1. Nkosinathi SibisiCentre-backCover: Mbekezeli Mbokazi · 0.000.41gap
  2. Aubrey ModibaFull-backCover: Thabang Matuludi · 0.180.28gap
  3. Khuliso MudauFull-backCover: Thabang Matuludi · 0.180.24gap

Gap = how far a side's rating at the position falls from the starter to his likely in-squad replacement (named under each name). Larger = harder to replace. Descriptive metric — does not feed the published probabilities. Methodology →

Match conditions

High-altitude venue. Mexico City sits at 2,240 m above sea level — thinner air affects stamina and ball flight.

  • AltitudeHigh altitude2,240 m
  • Avg temperatureFive-year mean over the tournament window17.7 °C
  • Avg humidity70%
  • Heat stressShade WBGT ~19.5 °CLow heat stress
  • Pitch surfacenatural grass

Natural-grass football stadium; a new pitch was laid during the stadium's renovation ahead of the tournament.

Heat stress is a shade Wet-Bulb Globe Temperature proxy from the venue's climatology mean temperature and humidity; FIFA mandates cooling breaks at WBGT 32 °C. Afternoon kickoff (local time). These are long-window averages, not a match-day forecast, and they are not inputs to the forecast.

Top scorers · P(scores in this match)

Mexico
South Africa

Per-player scoring rate from Model #5 (`p_score_per_match`). Reflects each player's npxG/90, expected minutes, team xG share, and the average opposing-team defence. See /docs/methodology/.

5

خلف الكواليس

Model-by-model comparison

Mexico vs South Africa

High disagreement (27.5%)
ModelWeightHomeDrawAway
EloRating-based strength estimate32%
76.4%
22.0%
1.6%
Dixon-ColesGoal-process model with low-score correction63%
48.8%
30.6%
20.5%
Hierarchical PoissonBayesian model with confederation pooling6%
53.6%
28.7%
17.7%
Bayesian stackingLearned-weight combination
57.6%
34.5%
7.8%
Ensemble (published)Uniform average + isotonic calibration
59.5%
27.2%
13.4%
Home spread: 27.5%
Draw spread: 8.6%
Away spread: 18.9%
How each model works
Elo
Each team carries a single strength rating updated after every match by a margin-aware K-factor. Match probabilities come from the logistic function of the rating gap. Elo is fast-adapting but coarse — it sees only who won and by how much, not how the goals were scored.
Dixon-Coles
A Poisson regression on team-level attack and defence parameters, fitted via maximum likelihood with an exponential time-decay weighting. The Dixon-Coles correction adjusts the four low-score cells (0-0, 1-0, 0-1, 1-1) where independent Poisson underestimates dependence. Produces full scoreline distributions, not just H/D/A.
Hierarchical Poisson
A Bayesian Poisson model fitted via MCMC (PyMC) with hierarchical priors that pool attack and defence parameters within confederations. Shrinks small-sample teams toward their confederation mean — helpful for nations with few recent competitive fixtures. Slower to fit but better-calibrated on the tails.
Bayesian stacking
Optimises simplex weights (w_elo, w_dc, w_hp) to maximise the leave-one-out log-score across a walk-forward backtest (Yao et al. 2018). The result is a weighted average of the three component models' probabilities, then isotonic-calibrated. Adds no extra features — just learns which component to trust more from historical accuracy.
Ensemble (published)
Equal-weight average of all three component models, followed by per-class isotonic regression calibration fitted on 24 months of walk-forward out-of-fold predictions. This is the probability published on the site. The uniform mean is deliberately simple — it avoids overfitting to the stacking weights' training window.

Three independent component models feed two combination strategies. The uniform ensemble is the published probability; Bayesian stacking uses learned weights. Amber bars flag >5pp divergence from the published number. Full methodology

Probability decomposition (transparency surface)

  • Baseline ensemble — P(Mexico win)59.5%
  • + Lineup contribution0.0pp
  • + Style-matchup contribution0.0pp
  • Published P(Mexico win)59.5%
Mexico
59.5%
Draw
27.2%
South Africa
13.4%

Decomposition of the published P(Mexico win) into the calibrated- baseline plus contributions from the §2.3 expected-XI lineup delta and the §2.7 style-matchup interaction. The §2.7 roadmap is explicit that style effects are second-order to team strength — single-digit-percentage P(win) shifts on extreme style matchups, near-zero on balanced ones. We surface the decomposition for transparency even when the contributions are small; the baseline carries the prediction. Methodology: /docs/methodology.

For this fixture both contributions round to under 0.05pp — the fitted style-matchup pair effect is in the small-magnitude regime the model expects to dominate.

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بيانات بتاريخ 2026-05-28