2025 Season — Round 13

Belgian Grand Prix

Spa-Francorchamps — 44 laps — 20 drivers

Total lap inversions
1410
start→finish: 40
Volatility score
1.6023
inversions / (grid × laps)
Winner
PIA
Oscar Piastri
Biggest mover
HAM
+11 positions (Lewis Hamilton)
Most overtaken
HAD
-12 positions (Isack Hadjar)
DNFs
0
retirements
On-track overtakes
22
of 69 total moves
Interventions
4 SC
laps under neutralisation
Race Summary

The 2025 Belgium GP produced 1410 lap inversions across 44 laps, with a volatility score of 1.6023. Lewis Hamilton (HAM) was the biggest mover, gaining 11 positions.

Inversions Per Lap
Each point shows how many active inversions existed that lap relative to the starting grid order. Higher peaks indicate more overtaking activity.
Cumulative Inversion Curve
Running total of inversions across the race. Steep sections indicate high-action phases. Flat sections mean positions locked in for multiple laps.
Lap-by-Lap Position Tracker
Each line is one driver's position through the race. P1 is at the top. Lines end where a driver retired. Use filters to isolate specific battles or storylines.
Quick select:20 / 20 drivers shown
Driver Position Changes
Positions gained (green) or lost (red) from grid start to final classification. DNF drivers shown in grey.
Position Heatmap
Rows = drivers, columns = laps. Cell colour = position: green (P1) → yellow (mid-field) → red (last). Faded cells = retired. More colour variance across a row = more movement for that driver throughout the race. Hover any cell for driver, lap, and exact position.
Position:
P1 → P20
DNF / no data
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
PIA
NOR
LEC
VER
RUS
ALB
HAM
LAW
BOR
GAS
BEA
HUL
TSU
STR
OCO
ANT
ALO
SAI
COL
HAD
Lap
Race Chaos Timeline
Lap-by-lap breakdown of overtaking activity by type. Green = genuine on-track passes, orange = pit-cycle position changes, yellow = moves under Safety Car / VSC, red = DNF-induced gains. Yellow dashed lines mark neutralisation laps.
Overtake Classification
Breaking down how position changes occurred during the race. Only data from re-ingested races (fetch_race_data.py v2) will show full classification.
69
Total position gains
On-track
22 (32%)
Pit cycle
47 (68%)
SC / VSC
0 (0%)
DNF-induced
0 (0%)
Adjusted Volatility
Three inversion curves for comparison. Raw: unfiltered (dashed grey). Pit-adjusted: removes drivers on in/out-laps so pit stops don't inflate inversions (green). SC-neutralized: SC and VSC laps weighted at 25% to reduce artificial compression effects (yellow).
Raw
1.6023
Pit-adjusted
1.4398
SC-neutralized
1.6023
Driver Battle Index
The most intense wheel-to-wheel fights of the race, ranked by a combined intensity score (position swaps + laps within 1 position). Higher = more sustained wheel-to-wheel racing.
NORvsPIATEAMMATE
PIA wins
3 position swaps44 laps within 1 posIntensity: 25
ALBvsRUS
RUS wins
1 position swap43 laps within 1 posIntensity: 22.5
LECvsVER
LEC wins
0 position swaps44 laps within 1 posIntensity: 22
RUSvsVER
VER wins
0 position swaps39 laps within 1 posIntensity: 19.5
LECvsNOR
NOR wins
0 position swaps38 laps within 1 posIntensity: 19
BORvsLAW
LAW wins
0 position swaps38 laps within 1 posIntensity: 19
ALOvsANT
ANT wins
2 position swaps30 laps within 1 posIntensity: 17
HAMvsLAW
HAM wins
1 position swap31 laps within 1 posIntensity: 16.5
ALBvsHAM
ALB wins
0 position swaps32 laps within 1 posIntensity: 16
GASvsTSU
GAS wins
1 position swap29 laps within 1 posIntensity: 15.5
Tyre Strategy Timeline
Lap-by-lap view of each driver's tyre compounds through the race. Solid = new tyres, faded with border = used tyres. Hover over any stint bar to see compound, stint length, pit lap, duration, and net position change.
Quick select:20 / 20 drivers shown
Soft
Medium
Hard
Intermediate
Wet
Used tyres
1
10
20
30
40
44
PIA
NOR
LEC
VER
RUS
ALB
HAM
LAW
BOR
GAS
BEA
HUL
TSU
STR
OCO
ANT
ALO
SAI
COL
HAD
Lap
What If No Safety Car?
Simulates the race volatility if all SC and VSC laps were removed entirely. Orange line = what the chaos curve would look like with pure racing laps only. Faint yellow verticals mark the removed neutralisation laps.
1.6023
Actual Volatility
full race, all laps
1.7625
No-SC Volatility
40 racing laps only
+10.0%
Difference
more chaotic without SC
4
SC/VSC Laps
laps removed from calc
Faint yellow lines mark removed SC/VSC laps · Orange = what the race chaos would have looked like
Momentum Tracker
Rolling 5-lap position change per driver. Positive = charging forward, negative = falling back. Shows who had the most momentum at each phase of the race. Defaults to top 10 finishers — use filters to explore all drivers.
Rolling 5-lap position change per driver. Positive = gaining, Negative = losing positions.
HAD-14
peak at L18
HAM+10
peak at L17
HUL+10
peak at L16
OCO-10
peak at L18
TSU-9
peak at L18
Quick select:10 / 20 drivers shown
Strategy Chaos Score
Measures how much strategy decisions shaped the race outcome. Counts undercuts, overcuts, pit-cycle passes, and failed strategies.
142.5
Strategy Chaos Score
Undercuts
30
Pitted early, gained on exit
Overcuts
17
Stayed out, gained via track position
Pit-Cycle Passes
47
Positions gained through pit windows
Failed Strategies
20
Net position loss from pit strategy
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Made by Kritagya Loomba